lustre/autoconf/lustre-core.m4

   1 #
   2 # LC_CONFIG_SRCDIR
   3 #
   4 # Wrapper for AC_CONFIG_SUBDIR
   5 #
   6 AC_DEFUN([LC_CONFIG_SRCDIR], [
   7 AC_CONFIG_SRCDIR([lustre/obdclass/obdo.c])
   8 ldiskfs_is_ext4="yes"
   9 ])
  10
  11 #
  12 # LC_PATH_DEFAULTS
  13 #
  14 # lustre specific paths
  15 #
  16 AC_DEFUN([LC_PATH_DEFAULTS], [
  17 # ptlrpc kernel build requires this
  18 LUSTRE="$PWD/lustre"
  19 AC_SUBST(LUSTRE)
  20
  21 # mount.lustre
  22 rootsbindir='/sbin'
  23 AC_SUBST(rootsbindir)
  24
  25 demodir='$(docdir)/demo'
  26 AC_SUBST(demodir)
  27
  28 pkgexampledir='${pkgdatadir}/examples'
  29 AC_SUBST(pkgexampledir)
  30 ]) # LC_PATH_DEFAULTS
  31
  32 #
  33 # LC_TARGET_SUPPORTED
  34 #
  35 # is the target os supported?
  36 #
  37 AC_DEFUN([LC_TARGET_SUPPORTED], [
  38 case $target_os in
  39         linux*)
  40 $1
  41                 ;;
  42         *)
  43 $2
  44                 ;;
  45 esac
  46 ]) # LC_TARGET_SUPPORTED
  47
  48 #
  49 # LC_GLIBC_SUPPORT_FHANDLES
  50 #
  51 AC_DEFUN([LC_GLIBC_SUPPORT_FHANDLES], [
  52 AC_CHECK_FUNCS([name_to_handle_at],
  53         [AC_DEFINE(HAVE_FHANDLE_GLIBC_SUPPORT, 1,
  54                 [file handle and related syscalls are supported])],
  55         [AC_MSG_WARN([file handle and related syscalls are not supported])])
  56 ]) # LC_GLIBC_SUPPORT_FHANDLES
  57
  58 #
  59 # LC_GLIBC_SUPPORT_COPY_FILE_RANGE
  60 #
  61 AC_DEFUN([LC_GLIBC_SUPPORT_COPY_FILE_RANGE], [
  62 AC_CHECK_FUNCS([copy_file_range],
  63         [AC_DEFINE(HAVE_COPY_FILE_RANGE, 1,
  64                 [copy_file_range() is supported])],
  65         [AC_MSG_WARN([copy_file_range() is not supported])])
  66 ]) # LC_GLIBC_SUPPORT_COPY_FILE_RANGE
  67
  68 #
  69 # LC_FID2PATH_UNION
  70 #
  71 AC_DEFUN([LC_FID2PATH_ANON_UNION], [
  72 saved_flags="$CFLAGS"
  73 CFLAGS="$CFLAGS -Werror"
  74 AC_MSG_CHECKING([if 'struct getinfo_fid2path' has anonymous union])
  75 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  76         #include <linux/lustre/lustre_idl.h>
  77
  78         int main(void) {
  79                 struct getinfo_fid2path gf;
  80                 struct lu_fid root_fid;
  81
  82                 *gf.gf_root_fid = root_fid;
  83                 return 0;
  84         }
  85 ])],[
  86         AC_DEFINE(HAVE_FID2PATH_ANON_UNIONS, 1, [union is unnamed])
  87         AC_MSG_RESULT([yes])
  88 ],[
  89         AC_MSG_RESULT([no])
  90 ])
  91 CFLAGS="$saved_flags"
  92 ]) # LC_FID2PATH_ANON_UNION
  93
  94 #
  95 # LC_STACK_SIZE
  96 #
  97 # Ensure the stack size is at least 8k in Lustre server (all kernels)
  98 #
  99 AC_DEFUN([LC_SRC_STACK_SIZE], [
 100         LB2_LINUX_TEST_SRC([stack_size_8k], [
 101                 #include <linux/thread_info.h>
 102         ], [
 103                 #if THREAD_SIZE < 8192
 104                 #error "stack size < 8192"
 105                 #endif
 106         ])
 107 ])
 108 AC_DEFUN([LC_STACK_SIZE], [
 109         AC_MSG_CHECKING([if stack size is at least 8k])
 110         LB2_LINUX_TEST_RESULT([stack_size_8k], [],[
 111                 AC_MSG_ERROR(
 112                 [Lustre requires that Linux is configured with at least a 8KB stack.])
 113         ])
 114 ]) # LC_STACK_SIZE
 115
 116 #
 117 # LC_MDS_MAX_THREADS
 118 #
 119 # Allow the user to set the MDS thread upper limit
 120 #
 121 AC_DEFUN([LC_MDS_MAX_THREADS], [
 122 AC_MSG_CHECKING([for maximum number of MDS threads])
 123 AC_ARG_WITH([mds_max_threads],
 124         AS_HELP_STRING([--with-mds-max-threads=count],
 125                 [maximum threads available on the MDS: (default=512)]),
 126         [AC_DEFINE_UNQUOTED(MDS_MAX_THREADS, $with_mds_max_threads,
 127                 [maximum number of MDS threads])])
 128 AC_MSG_RESULT([$with_mds_max_threads])
 129 ]) # LC_MDS_MAX_THREADS
 130
 131 #
 132 # LC_CONFIG_PINGER
 133 #
 134 # the pinger is temporary, until we have the recovery node in place
 135 #
 136 AC_DEFUN([LC_CONFIG_PINGER], [
 137 AC_MSG_CHECKING([whether to enable Lustre pinger support])
 138 AC_ARG_ENABLE([pinger],
 139         AS_HELP_STRING([--disable-pinger],
 140                 [disable recovery pinger support]),
 141         [], [enable_pinger="yes"])
 142 AC_MSG_RESULT([$enable_pinger])
 143 AS_IF([test "x$enable_pinger" != xno],
 144         [AC_DEFINE(CONFIG_LUSTRE_FS_PINGER, 1,[Use the Pinger])])
 145 ]) # LC_CONFIG_PINGER
 146
 147 #
 148 # LC_CONFIG_CHECKSUM
 149 #
 150 # do checksum of bulk data between client and OST
 151 #
 152 AC_DEFUN([LC_CONFIG_CHECKSUM], [
 153 AC_MSG_CHECKING([whether to enable data checksum support])
 154 AC_ARG_ENABLE([checksum],
 155         AS_HELP_STRING([--disable-checksum],
 156                 [disable data checksum support]),
 157         [], [enable_checksum="yes"])
 158 AC_MSG_RESULT([$enable_checksum])
 159 AS_IF([test "x$enable_checksum" != xno],
 160         [AC_DEFINE(ENABLE_CHECKSUM, 1, [do data checksums])])
 161 ]) # LC_CONFIG_CHECKSUM
 162
 163 #
 164 # LC_CONFIG_FLOCK
 165 #
 166 # enable distributed flock by default
 167 #
 168 AC_DEFUN([LC_CONFIG_FLOCK], [
 169 AC_MSG_CHECKING([whether to enable flock by default])
 170 AC_ARG_ENABLE([flock],
 171         AS_HELP_STRING([--disable-flock],
 172                 [disable flock by default]),
 173         [], [enable_flock="yes"])
 174 AC_MSG_RESULT([$enable_flock])
 175 AS_IF([test "x$enable_flock" != xno],
 176         [AC_DEFINE(ENABLE_FLOCK, 1, [enable flock by default])])
 177 ]) # LC_CONFIG_FLOCK
 178
 179 #
 180 # LC_CONFIG_HEALTH_CHECK_WRITE
 181 #
 182 # Turn off the actual write to the disk
 183 #
 184 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE], [
 185 AC_MSG_CHECKING([whether to enable a write with the health check])
 186 AC_ARG_ENABLE([health_write],
 187         AS_HELP_STRING([--enable-health_write],
 188                 [enable disk writes when doing health check]),
 189         [], [enable_health_write="no"])
 190 AC_MSG_RESULT([$enable_health_write])
 191 AS_IF([test "x$enable_health_write" != xno],
 192         [AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, [Write when Checking Health])])
 193 ]) # LC_CONFIG_HEALTH_CHECK_WRITE
 194
 195 #
 196 # LC_CONFIG_LRU_RESIZE
 197 #
 198 AC_DEFUN([LC_CONFIG_LRU_RESIZE], [
 199 AC_MSG_CHECKING([whether to enable lru self-adjusting])
 200 AC_ARG_ENABLE([lru_resize],
 201         AS_HELP_STRING([--enable-lru-resize],
 202                 [enable lru resize support]),
 203         [], [enable_lru_resize="yes"])
 204 AC_MSG_RESULT([$enable_lru_resize])
 205 AS_IF([test "x$enable_lru_resize" != xno],
 206         [AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])])
 207 ]) # LC_CONFIG_LRU_RESIZE
 208
 209 #
 210 # LC_CONFIG_QUOTA
 211 #
 212 # Quota support. The kernel must support CONFIG_QUOTA.
 213 #
 214 AC_DEFUN([LC_SRC_CONFIG_QUOTA], [
 215         LB2_SRC_CHECK_CONFIG_IM([QUOTA])
 216 ])
 217 AC_DEFUN([LC_CONFIG_QUOTA], [
 218         LB2_TEST_CHECK_CONFIG_IM([QUOTA],[],[AC_MSG_ERROR(
 219 [Lustre quota requires that CONFIG_QUOTA is enabled in your kernel.])])
 220 ]) # LC_CONFIG_QUOTA
 221
 222 #
 223 # LC_CONFIG_FHANDLE
 224 #
 225 # fhandle kernel support for open_by_handle_at() and name_to_handle_at()
 226 # system calls. The kernel must support CONFIG_FHANDLE.
 227 #
 228 AC_DEFUN([LC_SRC_CONFIG_FHANDLE], [
 229         LB2_SRC_CHECK_CONFIG_IM([FHANDLE])
 230 ])
 231 AC_DEFUN([LC_CONFIG_FHANDLE], [
 232         LB2_TEST_CHECK_CONFIG_IM([FHANDLE],[],[AC_MSG_ERROR(
 233 [Lustre fid handling requires that CONFIG_FHANDLE is enabled in your kernel.])])
 234 ]) # LC_CONFIG_FHANDLE
 235
 236 #
 237 # LC_POSIX_ACL_CONFIG
 238 #
 239 # POSIX ACL support.
 240 #
 241 AC_DEFUN([LC_SRC_POSIX_ACL_CONFIG], [
 242         LB2_SRC_CHECK_CONFIG_IM([FS_POSIX_ACL])
 243 ])
 244 AC_DEFUN([LC_POSIX_ACL_CONFIG], [
 245         LB2_TEST_CHECK_CONFIG_IM([FS_POSIX_ACL],
 246                 [AC_DEFINE(CONFIG_LUSTRE_FS_POSIX_ACL, 1, [Enable POSIX acl])],
 247                 [])
 248 ]) # LC_POSIX_ACL_CONFIG
 249
 250 # CRYPTO_MD5 check and warn only if GSS is not disabled.
 251
 252 #
 253 # LC_CONFIG_GSS_KEYRING
 254 #
 255 # default 'auto', tests for dependencies, if found, enables;
 256 # only called if gss is enabled
 257 #
 258 AC_DEFUN([LC_CONFIG_GSS_KEYRING], [
 259 AC_MSG_CHECKING([whether to enable gss keyring backend])
 260 AC_ARG_ENABLE([gss_keyring],
 261         [AS_HELP_STRING([--disable-gss-keyring],
 262                 [disable gss keyring backend])],
 263         [], [AS_IF([test "x$enable_gss" != xno], [
 264                         enable_gss_keyring="yes"], [
 265                         enable_gss_keyring="auto"])])
 266 AC_MSG_RESULT([$enable_gss_keyring])
 267 AS_IF([test "x$enable_gss_keyring" != xno], [
 268         LB_CHECK_CONFIG_IM([KEYS], [], [
 269                 gss_keyring_conf_test="fail"
 270                 AC_MSG_WARN([GSS keyring backend requires that CONFIG_KEYS be enabled in your kernel.])])
 271
 272         AC_CHECK_LIB([keyutils], [keyctl_search], [], [
 273                 gss_keyring_conf_test="fail"
 274                 AC_MSG_WARN([GSS keyring backend requires libkeyutils])])
 275
 276         AS_IF([test "x$gss_keyring_conf_test" != xfail], [
 277                 AC_DEFINE([HAVE_GSS_KEYRING], [1],
 278                         [Define this if you enable gss keyring backend])
 279                 enable_gss_keyring="yes"
 280         ], [
 281                 AS_IF([test "x$enable_gss_keyring" = xyes], [
 282                         AC_MSG_ERROR([Cannot enable gss_keyring. See above for details.])
 283                 ])
 284                 enable_ssk="no"
 285         ])
 286 ], [
 287         enable_ssk="no"
 288 ])
 289 ]) # LC_CONFIG_GSS_KEYRING
 290
 291 #
 292 # LC_KEY_TYPE_INSTANTIATE_2ARGS
 293 #
 294 # rhel7 key_type->instantiate takes 2 args (struct key, struct key_preparsed_payload)
 295 #
 296 AC_DEFUN([LC_SRC_KEY_TYPE_INSTANTIATE_2ARGS], [
 297         LB2_LINUX_TEST_SRC([key_type_instantiate_2args], [
 298                 #include <linux/key-type.h>
 299         ],[
 300                 ((struct key_type *)0)->instantiate(0, NULL);
 301         ])
 302 ])
 303 AC_DEFUN([LC_KEY_TYPE_INSTANTIATE_2ARGS], [
 304         AC_MSG_CHECKING([if 'key_type->instantiate' has two args])
 305         LB2_LINUX_TEST_RESULT([key_type_instantiate_2args], [
 306                 AC_DEFINE(HAVE_KEY_TYPE_INSTANTIATE_2ARGS, 1,
 307                         [key_type->instantiate has two args])
 308         ])
 309 ]) # LC_KEY_TYPE_INSTANTIATE_2ARGS
 310
 311 #
 312 # LC_CONFIG_SUNRPC
 313 #
 314 AC_DEFUN([LC_CONFIG_SUNRPC], [
 315 LB_CHECK_CONFIG_IM([SUNRPC], [], [
 316         AS_IF([test "x$sunrpc_required" = xyes], [
 317                 AC_MSG_ERROR([
 318
 319 kernel SUNRPC support is required by using GSS.
 320 ])
 321         ])])
 322 ]) # LC_CONFIG_SUNRPC
 323
 324 #
 325 # LC_CONFIG_GSS (default 'auto' (tests for dependencies, if found, enables))
 326 #
 327 # Build gss and related tools of Lustre. Currently both kernel and user space
 328 # parts are depend on linux platform.
 329 #
 330 AC_DEFUN([LC_CONFIG_GSS], [
 331 AC_MSG_CHECKING([whether to enable gss support])
 332 AC_ARG_ENABLE([gss],
 333         [AS_HELP_STRING([--enable-gss], [enable gss support])],
 334         [], [enable_gss="auto"])
 335 AC_MSG_RESULT([$enable_gss])
 336
 337 AC_ARG_VAR([TEST_JOBS],
 338     [simultaneous jobs during configure (defaults to $(nproc))])
 339 if test "x$ac_cv_env_TEST_JOBS_set" != "xset"; then
 340         TEST_JOBS=${TEST_JOBS:-$(nproc)}
 341 fi
 342 AC_SUBST(TEST_JOBS)
 343
 344 AC_ARG_VAR([TEST_DIR],
 345     [location of temporary parallel configure tests (defaults to $PWD/lb2)])
 346         TEST_DIR=${TEST_DIR:-${ac_pwd}/_lpb}
 347 AC_SUBST(TEST_DIR)
 348
 349 AS_IF([test "x$enable_gss" != xno], [
 350         LC_CONFIG_GSS_KEYRING
 351
 352         sunrpc_required=$enable_gss
 353         LC_CONFIG_SUNRPC
 354         sunrpc_required="no"
 355
 356         require_krb5=$enable_gss
 357         AC_KERBEROS_V5
 358         require_krb5="no"
 359
 360         AS_IF([test -n "$KRBDIR"], [
 361                 gss_conf_test="success"
 362         ], [
 363                 gss_conf_test="failure"
 364         ])
 365
 366         AS_IF([test "x$gss_conf_test" = xsuccess && test "x$enable_gss" != xno], [
 367                 AC_DEFINE([HAVE_GSS], [1], [Define this is if you enable gss])
 368                 enable_gss="yes"
 369         ], [
 370                 enable_gss_keyring="no"
 371                 enable_gss="no"
 372         ])
 373
 374         AS_IF([test "x$enable_ssk" != xno], [
 375                 enable_ssk=$enable_gss
 376         ])
 377 ], [
 378         enable_gss_keyring="no"
 379 ])
 380 ]) # LC_CONFIG_GSS
 381
 382 # LC_OPENSSL_HMAC
 383 #
 384 # OpenSSL 1.0+ return int for HMAC functions but older SLES11 versions do not
 385 AC_DEFUN([LC_OPENSSL_HMAC], [
 386 has_hmac_functions="no"
 387 saved_flags="$CFLAGS"
 388 CFLAGS="$CFLAGS -Werror"
 389 AC_MSG_CHECKING([whether OpenSSL has HMAC_Init_ex])
 390 AS_IF([test "x$enable_ssk" != xno], [
 391 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 392         #include <openssl/hmac.h>
 393         #include <openssl/evp.h>
 394
 395         int main(void) {
 396                 int rc;
 397                 rc = HMAC_Init_ex(NULL, "test", 4, EVP_md_null(), NULL);
 398         }
 399 ])],[
 400         has_hmac_functions="yes"
 401 ])
 402 ])
 403 AC_MSG_RESULT([$has_hmac_functions])
 404 CFLAGS="$saved_flags"
 405 ]) # LC_OPENSSL_HMAC
 406
 407 # LC_OPENSSL_EVP_PKEY
 408 #
 409 # OpenSSL 3.0 introduces EVP_PKEY_get_params
 410 AC_DEFUN([LC_OPENSSL_EVP_PKEY], [
 411 has_evp_pkey="no"
 412 saved_flags="$CFLAGS"
 413 CFLAGS="$CFLAGS -Werror"
 414 AC_MSG_CHECKING([whether OpenSSL has EVP_PKEY_get_params])
 415 AS_IF([test "x$enable_ssk" != xno], [
 416 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 417         #include <openssl/evp.h>
 418
 419         int main(void) {
 420                 OSSL_PARAM *params;
 421
 422                 int rc = EVP_PKEY_get_params(NULL, params);
 423         }
 424 ])],[
 425         AC_DEFINE(HAVE_OPENSSL_EVP_PKEY, 1, [OpenSSL EVP_PKEY_get_params])
 426         has_evp_pkey="yes"
 427 ])
 428 ])
 429 CFLAGS="$saved_flags"
 430 AC_MSG_RESULT([$has_evp_pkey])
 431 ]) # LC_OPENSSL_EVP_PKEY
 432
 433 #
 434 # LC_OPENSSL_SSK
 435 #
 436 # Check whether to enable Lustre client crypto
 437 #
 438 AC_DEFUN([LC_OPENSSL_SSK], [
 439 AC_MSG_CHECKING([whether OpenSSL has functions needed for SSK])
 440 AS_IF([test "x$enable_ssk" != xno], [
 441         AC_MSG_RESULT(
 442         )
 443         LC_OPENSSL_HMAC
 444         LC_OPENSSL_EVP_PKEY
 445 ])
 446 AS_IF([test "x$has_hmac_functions" = xyes -o "x$has_evp_pkey" = xyes], [
 447         AC_DEFINE(HAVE_OPENSSL_SSK, 1, [OpenSSL HMAC functions needed for SSK])
 448 ], [
 449         enable_ssk="no"
 450 ])
 451 AC_MSG_RESULT([$enable_ssk])
 452 ]) # LC_OPENSSL_SSK
 453
 454 # LC_OPENSSL_GETSEPOL
 455 #
 456 # OpenSSL is needed for l_getsepol
 457 AC_DEFUN([LC_OPENSSL_GETSEPOL], [
 458 saved_flags="$CFLAGS"
 459 CFLAGS="$CFLAGS -Werror"
 460 AC_MSG_CHECKING([whether openssl-devel is present])
 461 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 462         #include <openssl/evp.h>
 463
 464         int main(void) {
 465                 EVP_MD_CTX *mdctx = EVP_MD_CTX_create();
 466         }
 467 ])],[
 468         AC_DEFINE(HAVE_OPENSSL_GETSEPOL, 1, [openssl-devel is present])
 469         enable_getsepol="yes"
 470
 471 ],[
 472         enable_getsepol="no"
 473         AC_MSG_WARN([
 474
 475 No openssl-devel headers found, unable to build l_getsepol and SELinux status checking
 476 ])
 477 ])
 478 AC_MSG_RESULT([$enable_getsepol])
 479 CFLAGS="$saved_flags"
 480 ]) # LC_OPENSSL_GETSEPOL
 481
 482 # LC_HAVE_LIBAIO
 483 AC_DEFUN([LC_HAVE_LIBAIO], [
 484         AC_CHECK_HEADER([libaio.h],
 485                 enable_libaio="yes",
 486                 AC_MSG_WARN([libaio is not installed on the system]))
 487 ]) # LC_HAVE_LIBAIO
 488
 489 #
 490 # LC_INVALIDATE_RANGE
 491 #
 492 # 3.11 invalidatepage requires the length of the range to invalidate
 493 #
 494 AC_DEFUN([LC_SRC_INVALIDATE_RANGE], [
 495         LB2_LINUX_TEST_SRC([address_space_ops_invalidatepage_3args], [
 496                 #include <linux/fs.h>
 497         ],[
 498                 struct address_space_operations a_ops;
 499                 a_ops.invalidatepage(NULL, 0, 0);
 500         ])
 501 ])
 502 AC_DEFUN([LC_INVALIDATE_RANGE], [
 503         AC_MSG_CHECKING(
 504                 [if 'address_space_operations.invalidatepage' requires 3 arguments])
 505         LB2_LINUX_TEST_RESULT([address_space_ops_invalidatepage_3args], [
 506                 AC_DEFINE(HAVE_INVALIDATE_RANGE, 1,
 507                         [address_space_operations.invalidatepage needs 3 arguments])
 508         ])
 509 ]) # LC_INVALIDATE_RANGE
 510
 511 #
 512 # LC_HAVE_DIR_CONTEXT
 513 #
 514 # 3.11 readdir now takes the new struct dir_context
 515 #
 516 AC_DEFUN([LC_SRC_HAVE_DIR_CONTEXT], [
 517         LB2_LINUX_TEST_SRC([dir_context], [
 518                 #include <linux/fs.h>
 519         ],[
 520         #ifdef FMODE_KABI_ITERATE
 521         #error "back to use readdir in kabi_extand mode"
 522         #else
 523                 struct dir_context ctx;
 524
 525                 ctx.pos = 0;
 526         #endif
 527         ])
 528 ])
 529 AC_DEFUN([LC_HAVE_DIR_CONTEXT], [
 530         AC_MSG_CHECKING([if 'dir_context' exist])
 531         LB2_LINUX_TEST_RESULT([dir_context], [
 532                 AC_DEFINE(HAVE_DIR_CONTEXT, 1, [dir_context exist])
 533         ])
 534 ]) # LC_HAVE_DIR_CONTEXT
 535
 536 #
 537 # LC_D_COMPARE_5ARGS
 538 #
 539 # 3.11 dentry_operations.d_compare() taken 5 arguments.
 540 #
 541 AC_DEFUN([LC_SRC_D_COMPARE_5ARGS], [
 542         LB2_LINUX_TEST_SRC([d_compare_5args], [
 543                 #include <linux/dcache.h>
 544         ],[
 545                 ((struct dentry_operations*)0)->d_compare(NULL,NULL,0,NULL,NULL);
 546         ])
 547 ])
 548 AC_DEFUN([LC_D_COMPARE_5ARGS], [
 549         AC_MSG_CHECKING([if 'd_compare' taken 5 arguments])
 550         LB2_LINUX_TEST_RESULT([d_compare_5args], [
 551                 AC_DEFINE(HAVE_D_COMPARE_5ARGS, 1,
 552                         [d_compare need 5 arguments])
 553         ])
 554 ]) # LC_D_COMPARE_5ARGS
 555
 556 #
 557 # LC_HAVE_DCOUNT
 558 #
 559 # 3.11 need to access d_count to get dentry reference count
 560 #
 561 AC_DEFUN([LC_SRC_HAVE_DCOUNT], [
 562         LB2_LINUX_TEST_SRC([d_count], [
 563                 #include <linux/dcache.h>
 564         ],[
 565                 struct dentry de = { };
 566                 int count;
 567
 568                 count = d_count(&de);
 569         ])
 570 ])
 571 AC_DEFUN([LC_HAVE_DCOUNT], [
 572         AC_MSG_CHECKING([if 'd_count' exists])
 573         LB2_LINUX_TEST_RESULT([d_count], [
 574                 AC_DEFINE(HAVE_D_COUNT, 1, [d_count exist])
 575         ])
 576 ]) # LC_HAVE_DCOUNT
 577
 578 #
 579 # LC_PID_NS_FOR_CHILDREN
 580 #
 581 # 3.11 replaces pid_ns by pid_ns_for_children in struct nsproxy
 582 #
 583 AC_DEFUN([LC_SRC_PID_NS_FOR_CHILDREN], [
 584         LB2_LINUX_TEST_SRC([pid_ns_for_children], [
 585                 #include <linux/nsproxy.h>
 586         ],[
 587                 struct nsproxy ns;
 588                 ns.pid_ns_for_children = NULL;
 589         ])
 590 ])
 591 AC_DEFUN([LC_PID_NS_FOR_CHILDREN], [
 592         AC_MSG_CHECKING([if 'struct nsproxy' has 'pid_ns_for_children'])
 593         LB2_LINUX_TEST_RESULT([pid_ns_for_children], [
 594                 AC_DEFINE(HAVE_PID_NS_FOR_CHILDREN, 1,
 595                           ['struct nsproxy' has 'pid_ns_for_children'])
 596         ])
 597 ]) # LC_PID_NS_FOR_CHILDREN
 598
 599 #
 600 # LC_OLDSIZE_TRUNCATE_PAGECACHE
 601 #
 602 # 3.12 truncate_pagecache without oldsize parameter
 603 #
 604 AC_DEFUN([LC_SRC_OLDSIZE_TRUNCATE_PAGECACHE], [
 605         LB2_LINUX_TEST_SRC([truncate_pagecache_old_size], [
 606                 #include <linux/mm.h>
 607         ],[
 608                 truncate_pagecache(NULL, 0, 0);
 609         ])
 610 ])
 611 AC_DEFUN([LC_OLDSIZE_TRUNCATE_PAGECACHE], [
 612         AC_MSG_CHECKING([if 'truncate_pagecache' with 'old_size' parameter])
 613         LB2_LINUX_TEST_RESULT([truncate_pagecache_old_size], [
 614                 AC_DEFINE(HAVE_OLDSIZE_TRUNCATE_PAGECACHE, 1,
 615                         [with oldsize])
 616         ])
 617 ]) # LC_OLDSIZE_TRUNCATE_PAGECACHE
 618
 619 #
 620 # LC_PTR_ERR_OR_ZERO
 621 #
 622 # For some reason SLES11SP4 is missing the PTR_ERR_OR_ZERO macro
 623 # It was added to linux kernel 3.12
 624 #
 625 AC_DEFUN([LC_SRC_PTR_ERR_OR_ZERO_MISSING], [
 626         LB2_LINUX_TEST_SRC([is_err_or_null], [
 627                 #include <linux/err.h>
 628         ],[
 629                 if (PTR_ERR_OR_ZERO(NULL)) return 0;
 630         ])
 631 ])
 632 AC_DEFUN([LC_PTR_ERR_OR_ZERO_MISSING], [
 633         AC_MSG_CHECKING([if 'PTR_ERR_OR_ZERO' is missing])
 634         LB2_LINUX_TEST_RESULT([is_err_or_null], [
 635                 AC_DEFINE(HAVE_PTR_ERR_OR_ZERO, 1,
 636                         ['PTR_ERR_OR_ZERO' exist])
 637         ])
 638 ]) # LC_PTR_ERR_OR_ZERO_MISSING
 639
 640 #
 641 # LC_HAVE_DENTRY_D_U_D_ALIAS
 642 #
 643 # 3.11 kernel moved d_alias to the union d_u in struct dentry
 644 #
 645 # Some distros move d_alias to d_u but it is still a struct list
 646 #
 647 AC_DEFUN([LC_SRC_HAVE_DENTRY_D_U_D_ALIAS_LIST], [
 648         LB2_LINUX_TEST_SRC([d_alias_list], [
 649                 #include <linux/list.h>
 650                 #include <linux/dcache.h>
 651         ],[
 652                 struct dentry de;
 653                 INIT_LIST_HEAD(&de.d_u.d_alias);
 654         ])
 655 ])
 656 AC_DEFUN([LC_HAVE_DENTRY_D_U_D_ALIAS_LIST], [
 657         AC_MSG_CHECKING([if list 'dentry.d_u.d_alias' exist])
 658         LB2_LINUX_TEST_RESULT([d_alias_list], [
 659                 AC_DEFINE(HAVE_DENTRY_D_U_D_ALIAS, 1,
 660                         [list dentry.d_u.d_alias exist])
 661         ])
 662 ]) # LC_HAVE_DENTRY_D_U_D_ALIAS_LIST
 663
 664 #
 665 # LC_HAVE_DENTRY_D_U_D_ALIAS_HLIST
 666 #
 667 # Some distros move d_alias to d_u and it is an hlist
 668 #
 669 AC_DEFUN([LC_SRC_HAVE_DENTRY_D_U_D_ALIAS_HLIST], [
 670         LB2_LINUX_TEST_SRC([d_alias_hlist], [
 671                 #include <linux/list.h>
 672                 #include <linux/dcache.h>
 673         ],[
 674                 struct dentry de;
 675                 INIT_HLIST_NODE(&de.d_u.d_alias);
 676         ])
 677 ])
 678 AC_DEFUN([LC_HAVE_DENTRY_D_U_D_ALIAS_HLIST], [
 679         AC_MSG_CHECKING([if hlist 'dentry.d_u.d_alias' exist])
 680         LB2_LINUX_TEST_RESULT([d_alias_hlist], [
 681                 AC_DEFINE(HAVE_DENTRY_D_U_D_ALIAS, 1,
 682                         [list dentry.d_u.d_alias exist])
 683         ])
 684 ]) # LC_HAVE_DENTRY_D_U_D_ALIAS_HLIST
 685
 686
 687 #
 688 # LC_HAVE_DENTRY_D_CHILD
 689 #
 690 # 3.11 kernel d_child has been moved out of the union d_u
 691 # in struct dentry
 692 #
 693 AC_DEFUN([LC_SRC_HAVE_DENTRY_D_CHILD], [
 694         LB2_LINUX_TEST_SRC([d_child], [
 695                 #include <linux/list.h>
 696                 #include <linux/dcache.h>
 697         ],[
 698                 struct dentry de;
 699                 INIT_LIST_HEAD(&de.d_child);
 700         ])
 701 ])
 702 AC_DEFUN([LC_HAVE_DENTRY_D_CHILD], [
 703         AC_MSG_CHECKING([if 'dentry.d_child' exist])
 704         LB2_LINUX_TEST_RESULT([d_child], [
 705                 AC_DEFINE(HAVE_DENTRY_D_CHILD, 1, [dentry.d_child exist])
 706         ])
 707 ]) # LC_HAVE_DENTRY_D_CHILD
 708
 709 #
 710 # LC_KIOCB_KI_LEFT
 711 #
 712 # 3.12 ki_left removed from struct kiocb
 713 #
 714 AC_DEFUN([LC_SRC_KIOCB_KI_LEFT], [
 715         LB2_LINUX_TEST_SRC([kiocb_ki_left], [
 716                 #include <linux/aio.h>
 717         ],[
 718                 ((struct kiocb*)0)->ki_left = 0;
 719         ])
 720 ])
 721 AC_DEFUN([LC_KIOCB_KI_LEFT], [
 722         AC_MSG_CHECKING([if 'struct kiocb' with 'ki_left' member])
 723         LB2_LINUX_TEST_RESULT([kiocb_ki_left], [
 724                 AC_DEFINE(HAVE_KIOCB_KI_LEFT, 1,
 725                         [ki_left exist])
 726         ])
 727 ]) # LC_KIOCB_KI_LEFT
 728
 729 #
 730 # LC_REGISTER_SHRINKER_RET
 731 #
 732 # v3.11-8748-g1d3d4437eae1 register_shrinker returns a status
 733 #
 734 AC_DEFUN([LC_SRC_REGISTER_SHRINKER_RET], [
 735         LB2_LINUX_TEST_SRC([register_shrinker_ret], [
 736                 #include <linux/mm.h>
 737         ],[
 738                 if (register_shrinker(NULL))
 739                         unregister_shrinker(NULL);
 740         ],[])
 741 ])
 742 AC_DEFUN([LC_REGISTER_SHRINKER_RET], [
 743         AC_MSG_CHECKING([if register_shrinker() returns status])
 744         LB2_LINUX_TEST_RESULT([register_shrinker_ret], [
 745                 AC_DEFINE(HAVE_REGISTER_SHRINKER_RET, 1,
 746                         [register_shrinker() returns status])
 747         ])
 748 ]) # LC_REGISTER_SHRINKER_RET
 749
 750 #
 751 # LC_VFS_RENAME_5ARGS
 752 #
 753 # 3.13 has vfs_rename with 5 args
 754 #
 755 AC_DEFUN([LC_SRC_VFS_RENAME_5ARGS], [
 756         LB2_LINUX_TEST_SRC([vfs_rename_5args], [
 757                 #include <linux/fs.h>
 758         ],[
 759                 vfs_rename(NULL, NULL, NULL, NULL, NULL);
 760         ], [
 761                 AC_DEFINE(HAVE_VFS_RENAME_5ARGS, 1,
 762                         [kernel has vfs_rename with 5 args])
 763         ])
 764 ])
 765 AC_DEFUN([LC_VFS_RENAME_5ARGS], [
 766         AC_MSG_CHECKING([if Linux kernel has 'vfs_rename' with 5 args])
 767         LB2_LINUX_TEST_RESULT([vfs_rename_5args], [
 768                 AC_DEFINE(HAVE_VFS_RENAME_5ARGS, 1,
 769                         [kernel has vfs_rename with 5 args])
 770         ])
 771 ]) # LC_VFS_RENAME_5ARGS
 772
 773 #
 774 # LC_VFS_UNLINK_3ARGS
 775 #
 776 # 3.13 has vfs_unlink with 3 args
 777 #
 778 AC_DEFUN([LC_SRC_VFS_UNLINK_3ARGS], [
 779         LB2_LINUX_TEST_SRC([vfs_unlink_3args], [
 780                 #include <linux/fs.h>
 781         ],[
 782                 vfs_unlink(NULL, NULL, NULL);
 783         ])
 784 ])
 785 AC_DEFUN([LC_VFS_UNLINK_3ARGS], [
 786         AC_MSG_CHECKING([if Linux kernel has 'vfs_unlink' with 3 args])
 787         LB2_LINUX_TEST_RESULT([vfs_unlink_3args], [
 788                 AC_DEFINE(HAVE_VFS_UNLINK_3ARGS, 1,
 789                         [kernel has vfs_unlink with 3 args])
 790         ])
 791 ]) # LC_VFS_UNLINK_3ARGS
 792
 793 # LC_HAVE_D_IS_POSITIVE
 794 #
 795 # Kernel version 3.13 b18825a7c8e37a7cf6abb97a12a6ad71af160de7
 796 # d_is_positive is added
 797 #
 798 AC_DEFUN([LC_SRC_HAVE_D_IS_POSITIVE], [
 799         LB2_LINUX_TEST_SRC([d_is_positive], [
 800                 #include <linux/dcache.h>
 801         ],[
 802                 d_is_positive(NULL);
 803         ])
 804 ])
 805 AC_DEFUN([LC_HAVE_D_IS_POSITIVE], [
 806         AC_MSG_CHECKING([if 'd_is_positive' exist])
 807         LB2_LINUX_TEST_RESULT([d_is_positive], [
 808                 AC_DEFINE(HAVE_D_IS_POSITIVE, 1,
 809                         ['d_is_positive' is available])
 810         ])
 811 ]) # LC_HAVE_D_IS_POSITIVE
 812
 813 #
 814 # LC_HAVE_BVEC_ITER
 815 #
 816 # 3.14 move some of its data in struct bio into the new
 817 # struct bvec_iter
 818 #
 819 AC_DEFUN([LC_SRC_HAVE_BVEC_ITER], [
 820         LB2_LINUX_TEST_SRC([have_bvec_iter], [
 821                 #include <linux/bio.h>
 822         ],[
 823                 struct bvec_iter iter;
 824
 825                 iter.bi_bvec_done = 0;
 826         ])
 827 ])
 828 AC_DEFUN([LC_HAVE_BVEC_ITER], [
 829         AC_MSG_CHECKING([if Linux kernel has struct bvec_iter])
 830         LB2_LINUX_TEST_RESULT([have_bvec_iter], [
 831                 AC_DEFINE(HAVE_BVEC_ITER, 1,
 832                         [kernel has struct bvec_iter])
 833         ])
 834 ]) # LC_HAVE_BVEC_ITER
 835
 836 #
 837 # LC_IOP_SET_ACL
 838 #
 839 # 3.14 adds set_acl method to inode_operations
 840 # see kernel commit 893d46e443346370cd4ea81d9d35f72952c62a37
 841 #
 842 AC_DEFUN([LC_SRC_IOP_SET_ACL], [
 843         LB2_LINUX_TEST_SRC([inode_ops_set_acl], [
 844                 #include <linux/fs.h>
 845         ],[
 846                 struct inode_operations iop;
 847                 iop.set_acl = NULL;
 848         ])
 849 ])
 850 AC_DEFUN([LC_IOP_SET_ACL], [
 851         AC_MSG_CHECKING([if 'inode_operations' has '.set_acl' member function])
 852         LB2_LINUX_TEST_RESULT([inode_ops_set_acl], [
 853                 AC_DEFINE(HAVE_IOP_SET_ACL, 1,
 854                         [inode_operations has .set_acl member function])
 855         ])
 856 ]) # LC_IOP_SET_ACL
 857
 858 #
 859 # LC_HAVE_TRUNCATE_IPAGE_FINAL
 860 #
 861 # 3.14 bring truncate_inode_pages_final for evict_inode
 862 #
 863 AC_DEFUN([LC_SRC_HAVE_TRUNCATE_IPAGES_FINAL], [
 864         LB2_LINUX_TEST_SRC([truncate_ipages_final], [
 865                 #include <linux/mm.h>
 866         ],[
 867                 truncate_inode_pages_final(NULL);
 868         ])
 869 ])
 870 AC_DEFUN([LC_HAVE_TRUNCATE_IPAGES_FINAL], [
 871         AC_MSG_CHECKING([if Linux kernel has truncate_inode_pages_final])
 872         LB2_LINUX_TEST_RESULT([truncate_ipages_final], [
 873                 AC_DEFINE(HAVE_TRUNCATE_INODE_PAGES_FINAL, 1,
 874                         [kernel has truncate_inode_pages_final])
 875         ])
 876 ]) # LC_HAVE_TRUNCATE_IPAGES_FINAL
 877
 878 #
 879 # LC_IOPS_RENAME_WITH_FLAGS
 880 #
 881 # 3.14 has inode_operations->rename with 5 args
 882 # commit 520c8b16505236fc82daa352e6c5e73cd9870cff
 883 #
 884 AC_DEFUN([LC_SRC_IOPS_RENAME_WITH_FLAGS], [
 885         LB2_LINUX_TEST_SRC([iops_rename_with_flags], [
 886                 #include <linux/fs.h>
 887         ],[
 888                 struct inode *i1 = NULL, *i2 = NULL;
 889                 struct dentry *d1 = NULL, *d2 = NULL;
 890                 int rc;
 891                 rc = ((struct inode_operations *)0)->rename(i1, d1, i2, d2, 0);
 892         ])
 893 ]) # LC_IOPS_RENAME_WITH_FLAGS
 894 AC_DEFUN([LC_IOPS_RENAME_WITH_FLAGS], [
 895         AC_MSG_CHECKING([if 'inode_operations->rename' taken flags as argument])
 896         LB2_LINUX_TEST_RESULT([iops_rename_with_flags], [
 897                 AC_DEFINE(HAVE_IOPS_RENAME_WITH_FLAGS, 1,
 898                         [inode_operations->rename need flags as argument])
 899         ])
 900 ]) # LC_IOPS_RENAME_WITH_FLAGS
 901
 902 #
 903 # LC_VFS_RENAME_6ARGS
 904 #
 905 # 3.15 has vfs_rename with 6 args
 906 #
 907 AC_DEFUN([LC_SRC_VFS_RENAME_6ARGS], [
 908         LB2_LINUX_TEST_SRC([vfs_rename_6args], [
 909                 #include <linux/fs.h>
 910         ],[
 911                 vfs_rename(NULL, NULL, NULL, NULL, NULL, NULL);
 912         ])
 913 ])
 914 AC_DEFUN([LC_VFS_RENAME_6ARGS], [
 915         AC_MSG_CHECKING([if Linux kernel has 'vfs_rename' with 6 args])
 916         LB2_LINUX_TEST_RESULT([vfs_rename_6args], [
 917                 AC_DEFINE(HAVE_VFS_RENAME_6ARGS, 1,
 918                         [kernel has vfs_rename with 6 args])
 919         ])
 920 ]) # LC_VFS_RENAME_6ARGS
 921
 922 #
 923 # LC_DIRECTIO_USE_ITER
 924 #
 925 # 3.16 kernel changes direct IO to use iov_iter
 926 #
 927 AC_DEFUN([LC_SRC_DIRECTIO_USE_ITER], [
 928         LB2_LINUX_TEST_SRC([direct_io_iter], [
 929                 #include <linux/fs.h>
 930         ],[
 931                 struct address_space_operations ops = { };
 932                 struct iov_iter *iter = NULL;
 933                 loff_t offset = 0;
 934
 935                 ops.direct_IO(0, NULL, iter, offset);
 936         ])
 937 ])
 938 AC_DEFUN([LC_DIRECTIO_USE_ITER], [
 939         AC_MSG_CHECKING([if direct IO uses iov_iter])
 940         LB2_LINUX_TEST_RESULT([direct_io_iter], [
 941                 AC_DEFINE(HAVE_DIRECTIO_ITER, 1, [direct IO uses iov_iter])
 942         ])
 943 ]) # LC_DIRECTIO_USE_ITER
 944
 945 #
 946 # LC_HAVE_IOV_ITER_INIT_DIRECTION
 947 #
 948 #
 949 # 3.16 linux commit 71d8e532b1549a478e6a6a8a44f309d050294d00
 950 #      changed iov_iter_init api to start accepting a tag
 951 #      that defines if its a read or write operation
 952 #
 953 AC_DEFUN([LC_SRC_HAVE_IOV_ITER_INIT_DIRECTION], [
 954         LB2_LINUX_TEST_SRC([iter_init], [
 955                 #include <linux/uio.h>
 956                 #include <linux/fs.h>
 957         ],[
 958                 const struct iovec *iov = NULL;
 959
 960                 iov_iter_init(NULL, READ, iov, 1, 0);
 961         ],[-Werror])
 962 ])
 963 AC_DEFUN([LC_HAVE_IOV_ITER_INIT_DIRECTION], [
 964         AC_MSG_CHECKING([if 'iov_iter_init' takes a tag])
 965         LB2_LINUX_TEST_RESULT([iter_init], [
 966                 AC_DEFINE(HAVE_IOV_ITER_INIT_DIRECTION, 1,
 967                         [iov_iter_init handles directional tag])
 968         ])
 969 ]) # LC_HAVE_IOV_ITER_INIT_DIRECTION
 970
 971 #
 972 # LC_HAVE_IOV_ITER_TRUNCATE
 973 #
 974 #
 975 # 3.16 introduces a new API iov_iter_truncate()
 976 #
 977 AC_DEFUN([LC_SRC_HAVE_IOV_ITER_TRUNCATE], [
 978         LB2_LINUX_TEST_SRC([iter_truncate], [
 979                 #include <linux/uio.h>
 980                 #include <linux/fs.h>
 981         ],[
 982                 struct iov_iter *i = NULL;
 983
 984                 iov_iter_truncate(i, 0);
 985         ],[-Werror])
 986 ])
 987 AC_DEFUN([LC_HAVE_IOV_ITER_TRUNCATE], [
 988         AC_MSG_CHECKING([if 'iov_iter_truncate' exists])
 989         LB2_LINUX_TEST_RESULT([iter_truncate], [
 990                 AC_DEFINE(HAVE_IOV_ITER_TRUNCATE, 1, [iov_iter_truncate exists])
 991         ])
 992 ]) # LC_HAVE_IOV_ITER_TRUNCATE
 993
 994 #
 995 # LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
 996 #
 997 # 3.16 introduces [read|write]_iter to struct file_operations
 998 #
 999 AC_DEFUN([LC_SRC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER], [
1000         LB2_LINUX_TEST_SRC([file_function_iter], [
1001                 #include <linux/fs.h>
1002         ],[
1003                 ((struct file_operations *)NULL)->read_iter(NULL, NULL);
1004                 ((struct file_operations *)NULL)->write_iter(NULL, NULL);
1005         ])
1006 ])
1007 AC_DEFUN([LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER], [
1008         AC_MSG_CHECKING([if 'file_operations.[read|write]_iter' exist])
1009         LB2_LINUX_TEST_RESULT([file_function_iter], [
1010                 AC_DEFINE(HAVE_FILE_OPERATIONS_READ_WRITE_ITER, 1,
1011                         [file_operations.[read|write]_iter functions exist])
1012         ])
1013 ]) # LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
1014
1015 #
1016 # LC_HAVE_INTERVAL_BLK_INTEGRITY
1017 #
1018 # 3.17 replace sector_size with interval in struct blk_integrity
1019 #
1020 AC_DEFUN([LC_SRC_HAVE_INTERVAL_BLK_INTEGRITY], [
1021         LB2_LINUX_TEST_SRC([interval_blk_integrity], [
1022                 #include <linux/blkdev.h>
1023         ],[
1024                 ((struct blk_integrity *)0)->interval = 0;
1025         ])
1026 ])
1027 AC_DEFUN([LC_HAVE_INTERVAL_BLK_INTEGRITY], [
1028         AC_MSG_CHECKING([if 'blk_integrity.interval' exist])
1029         LB2_LINUX_TEST_RESULT([interval_blk_integrity], [
1030                 AC_DEFINE(HAVE_INTERVAL_BLK_INTEGRITY, 1,
1031                         [blk_integrity.interval exist])
1032         ])
1033 ]) # LC_HAVE_INTERVAL_BLK_INTEGRITY
1034
1035 #
1036 # LC_KEY_MATCH_DATA
1037 #
1038 # 3.17  replaces key_type::match with match_preparse
1039 #       and has new struct key_match_data
1040 #
1041 AC_DEFUN([LC_SRC_KEY_MATCH_DATA], [
1042         LB2_LINUX_TEST_SRC([key_match], [
1043                 #include <linux/key-type.h>
1044         ],[
1045                 struct key_match_data data;
1046
1047                 data.raw_data = NULL;
1048         ])
1049 ])
1050 AC_DEFUN([LC_KEY_MATCH_DATA], [
1051         AC_MSG_CHECKING([if struct key_match field exist])
1052         LB2_LINUX_TEST_RESULT([key_match], [
1053                 AC_DEFINE(HAVE_KEY_MATCH_DATA, 1, [struct key_match_data exist])
1054         ])
1055 ]) # LC_KEY_MATCH_DATA
1056
1057 #
1058 # LC_HAVE_BLK_INTEGRITY_ITER
1059 #
1060 # Linux commit v3.17-rc5-69-g1859308853b1 replaces
1061 # struct blk_integrity_exchg with struct blk_integrity_iter
1062 #
1063 # LB_CHECK_LINUX_HEADER has already run so we can rely on
1064 # HAVE_LINUX_BLK_INTEGRITY_HEADER being set correctly before
1065 # this test is run.
1066 #
1067 AC_DEFUN([LC_SRC_HAVE_BLK_INTEGRITY_ITER], [
1068         LB2_LINUX_TEST_SRC([blk_integrity_iter], [
1069                 #ifdef HAVE_LINUX_BLK_INTEGRITY_HEADER
1070                 # include <linux/blk-integrity.h>
1071                 #else
1072                 # include <linux/blkdev.h>
1073                 #endif
1074         ],[
1075                 struct blk_integrity_iter iter;
1076
1077                 iter.prot_buf = NULL;
1078         ])
1079 ])
1080 AC_DEFUN([LC_HAVE_BLK_INTEGRITY_ITER], [
1081         AC_MSG_CHECKING([if struct blk_integrity_iter exist])
1082         LB2_LINUX_TEST_RESULT([blk_integrity_iter], [
1083                 AC_DEFINE(HAVE_BLK_INTEGRITY_ITER, 1,
1084                         [kernel has struct blk_integrity_iter])
1085         ])
1086 ]) # LC_HAVE_BLK_INTEGRITY_ITER
1087
1088 #
1089 # LC_NFS_FILLDIR_USE_CTX
1090 #
1091 # 3.18 kernel moved from void cookie to struct dir_context
1092 #
1093 AC_DEFUN([LC_SRC_NFS_FILLDIR_USE_CTX], [
1094         LB2_LINUX_TEST_SRC([filldir_ctx], [
1095                 #include <linux/fs.h>
1096         ],[
1097                 int filldir(struct dir_context *ctx, const char* name,
1098                             int i, loff_t off, u64 tmp, unsigned temp)
1099                 {
1100                         return 0;
1101                 }
1102
1103                 struct dir_context ctx = {
1104                         .actor = filldir,
1105                 };
1106
1107                 ctx.actor(NULL, "test", 0, (loff_t) 0, 0, 0);
1108         ],[-Werror])
1109 ])
1110 AC_DEFUN([LC_NFS_FILLDIR_USE_CTX], [
1111         AC_MSG_CHECKING([if filldir_t uses struct dir_context])
1112         LB2_LINUX_TEST_RESULT([filldir_ctx], [
1113                 AC_DEFINE(HAVE_FILLDIR_USE_CTX, 1,
1114                         [filldir_t needs struct dir_context as argument])
1115         ])
1116 ]) # LC_NFS_FILLDIR_USE_CTX
1117
1118 #
1119 # LC_PERCPU_COUNTER_INIT
1120 #
1121 # 3.18  For kernels 3.18 and after percpu_counter_init starts
1122 #       to pass a GFP_* memory allocation flag for internal
1123 #       memory allocation purposes.
1124 #
1125 AC_DEFUN([LC_SRC_PERCPU_COUNTER_INIT], [
1126         LB2_LINUX_TEST_SRC([percpu_counter_init], [
1127                 #include <linux/percpu_counter.h>
1128         ],[
1129                 percpu_counter_init(NULL, 0, GFP_KERNEL);
1130         ])
1131 ])
1132 AC_DEFUN([LC_PERCPU_COUNTER_INIT], [
1133         AC_MSG_CHECKING([if percpu_counter_init uses GFP_* flag as argument])
1134         LB2_LINUX_TEST_RESULT([percpu_counter_init], [
1135                 AC_DEFINE(HAVE_PERCPU_COUNTER_INIT_GFP_FLAG, 1,
1136                         [percpu_counter_init uses GFP_* flag])
1137         ])
1138 ]) # LC_PERCPU_COUNTER_INIT
1139
1140 #
1141 # LC_KIOCB_HAS_NBYTES
1142 #
1143 # 3.19 kernel removed ki_nbytes from struct kiocb
1144 #
1145 AC_DEFUN([LC_SRC_KIOCB_HAS_NBYTES], [
1146         LB2_LINUX_TEST_SRC([ki_nbytes], [
1147                 #include <linux/fs.h>
1148         ],[
1149                 struct kiocb iocb = { };
1150
1151                 iocb.ki_nbytes = 0;
1152         ])
1153 ])
1154 AC_DEFUN([LC_KIOCB_HAS_NBYTES], [
1155         AC_MSG_CHECKING([if struct kiocb has ki_nbytes field])
1156         LB2_LINUX_TEST_RESULT([ki_nbytes], [
1157                 AC_DEFINE(HAVE_KI_NBYTES, 1, [ki_nbytes field exist])
1158         ])
1159 ]) # LC_KIOCB_HAS_NBYTES
1160
1161 #
1162 # LC_HAVE_DQUOT_QC_DQBLK
1163 #
1164 # 3.19 has quotactl_ops->[sg]et_dqblk that take struct kqid and qc_dqblk
1165 # Added in commit 14bf61ffe
1166 #
1167 AC_DEFUN([LC_SRC_HAVE_DQUOT_QC_DQBLK], [
1168         LB2_LINUX_TEST_SRC([qc_dqblk], [
1169                 #include <linux/fs.h>
1170                 #include <linux/quota.h>
1171         ],[
1172                 ((struct quotactl_ops *)0)->set_dqblk(NULL, *((struct kqid*)0), (struct qc_dqblk*)0);
1173         ],[-Werror])
1174 ])
1175 AC_DEFUN([LC_HAVE_DQUOT_QC_DQBLK], [
1176         AC_MSG_CHECKING([if 'quotactl_ops.set_dqblk' takes struct qc_dqblk])
1177         LB2_LINUX_TEST_RESULT([qc_dqblk], [
1178                 AC_DEFINE(HAVE_DQUOT_QC_DQBLK, 1,
1179                         [quotactl_ops.set_dqblk takes struct qc_dqblk])
1180                 AC_DEFINE(HAVE_DQUOT_KQID, 1,
1181                         [quotactl_ops.set_dqblk takes struct kqid])
1182         ])
1183 ]) # LC_HAVE_DQUOT_QC_DQBLK
1184
1185 #
1186 # LC_HAVE_AIO_COMPLETE
1187 #
1188 # 3.19 kernel makes aio_complete() static
1189 #
1190 AC_DEFUN([LC_SRC_HAVE_AIO_COMPLETE], [
1191         LB2_LINUX_TEST_SRC([aio_complete], [
1192                 #include <linux/aio.h>
1193         ],[
1194                 aio_complete(NULL, 0, 0);
1195         ])
1196 ])
1197 AC_DEFUN([LC_HAVE_AIO_COMPLETE], [
1198         AC_MSG_CHECKING([if kernel has exported aio_complete()])
1199         LB2_LINUX_TEST_RESULT([aio_complete], [
1200                 AC_DEFINE(HAVE_AIO_COMPLETE, 1, [aio_complete defined])
1201         ])
1202 ]) # LC_HAVE_AIO_COMPLETE
1203
1204 #
1205 # LC_HAVE_IS_ROOT_INODE
1206 #
1207 # 3.19 kernel adds is_root_inode()
1208 # Commit a7400222e3eb ("new helper: is_root_inode()")
1209 #
1210 AC_DEFUN([LC_SRC_HAVE_IS_ROOT_INODE], [
1211         LB2_LINUX_TEST_SRC([is_root_inode], [
1212                 #include <linux/fs.h>
1213         ],[
1214                 is_root_inode(NULL);
1215         ],[])
1216 ])
1217 AC_DEFUN([LC_HAVE_IS_ROOT_INODE], [
1218         AC_MSG_CHECKING([if kernel has is_root_inode()])
1219         LB2_LINUX_TEST_RESULT([is_root_inode], [
1220                 AC_DEFINE(HAVE_IS_ROOT_INODE, 1, [is_root_inode defined])
1221         ])
1222 ]) # LC_HAVE_IS_ROOT_INODE
1223
1224 #
1225 # LC_BACKING_DEV_INFO_REMOVAL
1226 #
1227 # 3.20 kernel removed backing_dev_info from address_space
1228 #
1229 AC_DEFUN([LC_SRC_BACKING_DEV_INFO_REMOVAL], [
1230         LB2_LINUX_TEST_SRC([backing_dev_info], [
1231                 #include <linux/fs.h>
1232         ],[
1233                 struct address_space mapping;
1234
1235                 mapping.backing_dev_info = NULL;
1236         ])
1237 ])
1238 AC_DEFUN([LC_BACKING_DEV_INFO_REMOVAL], [
1239         AC_MSG_CHECKING([if struct address_space has backing_dev_info])
1240         LB2_LINUX_TEST_RESULT([backing_dev_info], [
1241                 AC_DEFINE(HAVE_BACKING_DEV_INFO, 1, [backing_dev_info exist])
1242         ])
1243 ]) # LC_BACKING_DEV_INFO_REMOVAL
1244
1245 #
1246 # LC_HAVE_BDI_CAP_MAP_COPY
1247 #
1248 # 3.20  removed mmap handling for backing devices since
1249 #       it breaks on non-MMU systems. See kernel commit
1250 #       b4caecd48005fbed3949dde6c1cb233142fd69e9
1251 #
1252 AC_DEFUN([LC_SRC_HAVE_BDI_CAP_MAP_COPY], [
1253         LB2_LINUX_TEST_SRC([bdi_cap_map_copy], [
1254                 #include <linux/backing-dev.h>
1255         ],[
1256                 struct backing_dev_info info;
1257
1258                 info.capabilities = BDI_CAP_MAP_COPY;
1259         ])
1260 ]) # LC_HAVE_BDI_CAP_MAP_COPY
1261 AC_DEFUN([LC_HAVE_BDI_CAP_MAP_COPY], [
1262         AC_MSG_CHECKING([if have 'BDI_CAP_MAP_COPY'])
1263         LB2_LINUX_TEST_RESULT([bdi_cap_map_copy], [
1264                 AC_DEFINE(HAVE_BDI_CAP_MAP_COPY, 1,
1265                         [BDI_CAP_MAP_COPY exist])
1266         ])
1267 ]) # LC_HAVE_BDI_CAP_MAP_COPY
1268
1269 #
1270 # LC_HAVE_PROJECT_QUOTA
1271 #
1272 # Kernel version v4.0-rc1-197-g847aac644e92
1273 #
1274 AC_DEFUN([LC_SRC_HAVE_PROJECT_QUOTA], [
1275         LB2_LINUX_TEST_SRC([get_projid], [
1276                 struct inode;
1277                 #include <linux/quota.h>
1278         ],[
1279                 struct dquot_operations ops = { };
1280
1281                 ops.get_projid(NULL, NULL);
1282         ])
1283 ])
1284 AC_DEFUN([LC_HAVE_PROJECT_QUOTA], [
1285         AC_MSG_CHECKING([if get_projid exists])
1286         LB2_LINUX_TEST_RESULT([get_projid], [
1287                 AC_DEFINE(HAVE_PROJECT_QUOTA, 1,
1288                         [get_projid function exists])
1289         ])
1290 ]) # LC_HAVE_PROJECT_QUOTA
1291
1292 #
1293 # LC_IOV_ITER_RW
1294 #
1295 # 4.1 kernel has iov_iter_rw
1296 #
1297 AC_DEFUN([LC_SRC_IOV_ITER_RW], [
1298         LB2_LINUX_TEST_SRC([iov_iter_rw], [
1299                 #include <linux/fs.h>
1300                 #include <linux/uio.h>
1301         ],[
1302                 struct iov_iter *iter = NULL;
1303
1304                 iov_iter_rw(iter);
1305         ])
1306 ])
1307 AC_DEFUN([LC_IOV_ITER_RW], [
1308         AC_MSG_CHECKING([if iov_iter_rw exist])
1309         LB2_LINUX_TEST_RESULT([iov_iter_rw], [
1310                 AC_DEFINE(HAVE_IOV_ITER_RW, 1, [iov_iter_rw exist])
1311         ])
1312 ]) # LC_IOV_ITER_RW
1313
1314 #
1315 # LC_HAVE_SYNC_READ_WRITE
1316 #
1317 # 4.1 new_sync_[read|write] no longer exported
1318 #
1319 AC_DEFUN([LC_HAVE_SYNC_READ_WRITE], [
1320 LB_CHECK_EXPORT([new_sync_read], [fs/read_write.c],
1321         [AC_DEFINE(HAVE_SYNC_READ_WRITE, 1,
1322                         [new_sync_[read|write] is exported by the kernel])])
1323 ]) # LC_HAVE_SYNC_READ_WRITE
1324
1325 #
1326 # LC_HAVE___BI_CNT
1327 #
1328 # 4.1 redefined bi_cnt as __bi_cnt in commit dac56212e8127dbc0
1329 #
1330 AC_DEFUN([LC_SRC_HAVE___BI_CNT], [
1331         LB2_LINUX_TEST_SRC([have___bi_cnt], [
1332                 #include <asm/atomic.h>
1333                 #include <linux/bio.h>
1334                 #include <linux/blk_types.h>
1335         ],[
1336                 struct bio bio = { };
1337                 int cnt;
1338                 cnt = atomic_read(&bio.__bi_cnt);
1339         ])
1340 ])
1341 AC_DEFUN([LC_HAVE___BI_CNT], [
1342         AC_MSG_CHECKING([if Linux kernel has __bi_cnt in struct bio])
1343         LB2_LINUX_TEST_RESULT([have___bi_cnt], [
1344                 AC_DEFINE(HAVE___BI_CNT, 1, [struct bio has __bi_cnt])
1345         ])
1346 ]) # LC_HAVE___BI_CNT
1347
1348 #
1349 # LC_SYMLINK_OPS_USE_NAMEIDATA
1350 #
1351 # For the 4.2+ kernels the file system internal symlink api no
1352 # longer uses struct nameidata as a argument
1353 #
1354 AC_DEFUN([LC_SRC_SYMLINK_OPS_USE_NAMEIDATA], [
1355         LB2_LINUX_TEST_SRC([symlink_use_nameidata], [
1356                 #include <linux/namei.h>
1357                 #include <linux/fs.h>
1358         ],[
1359                 struct nameidata *nd = NULL;
1360
1361                 ((struct inode_operations *)0)->follow_link(NULL, nd);
1362                 ((struct inode_operations *)0)->put_link(NULL, nd, NULL);
1363         ])
1364 ])
1365 AC_DEFUN([LC_SYMLINK_OPS_USE_NAMEIDATA], [
1366         AC_MSG_CHECKING([if symlink inode operations have struct nameidata argument])
1367         LB2_LINUX_TEST_RESULT([symlink_use_nameidata], [
1368                 AC_DEFINE(HAVE_SYMLINK_OPS_USE_NAMEIDATA, 1,
1369                         [symlink inode operations need struct nameidata argument])
1370         ])
1371 ]) # LC_SYMLINK_OPS_USE_NAMEIDATA
1372
1373 #
1374 # LC_BIO_ENDIO_USES_ONE_ARG
1375 #
1376 # 4.2 kernel bio_endio now only takes one argument
1377 #
1378 AC_DEFUN([LC_SRC_BIO_ENDIO_USES_ONE_ARG], [
1379         LB2_LINUX_TEST_SRC([bio_endio], [
1380                 #include <linux/bio.h>
1381         ],[
1382                 bio_endio(NULL);
1383         ])
1384 ])
1385 AC_DEFUN([LC_BIO_ENDIO_USES_ONE_ARG], [
1386         AC_MSG_CHECKING([if 'bio_endio' with one argument exist])
1387         LB2_LINUX_TEST_RESULT([bio_endio], [
1388                 AC_DEFINE(HAVE_BIO_ENDIO_USES_ONE_ARG, 1,
1389                         [bio_endio takes only one argument])
1390         ])
1391 ]) # LC_BIO_ENDIO_USES_ONE_ARG
1392
1393 #
1394 # LC_ACCOUNT_PAGE_DIRTIED_3ARGS
1395 #
1396 # 4.2 [to 4.5] kernel page dirtied takes 3 arguments
1397 #
1398 AC_DEFUN([LC_SRC_ACCOUNT_PAGE_DIRTIED_3ARGS], [
1399         LB2_LINUX_TEST_SRC([account_page_dirtied_3a], [
1400                 #include <linux/mm.h>
1401         ],[
1402                 account_page_dirtied(NULL, NULL, NULL);
1403         ])
1404 ])
1405 AC_DEFUN([LC_ACCOUNT_PAGE_DIRTIED_3ARGS], [
1406         AC_MSG_CHECKING([if 'account_page_dirtied' with 3 args exists])
1407         LB2_LINUX_TEST_RESULT([account_page_dirtied_3a], [
1408                 AC_DEFINE(HAVE_ACCOUNT_PAGE_DIRTIED_3ARGS, 1,
1409                         [account_page_dirtied takes three arguments])
1410         ])
1411 ]) # LC_ACCOUNT_PAGE_DIRTIED_3ARGS
1412
1413 #
1414 # LC_HAVE_CRYPTO_ALLOC_SKCIPHER
1415 #
1416 # Kernel version 4.12 commit 7a7ffe65c8c5
1417 # introduced crypto_alloc_skcipher().
1418 #
1419 AC_DEFUN([LC_SRC_HAVE_CRYPTO_ALLOC_SKCIPHER], [
1420         LB2_LINUX_TEST_SRC([crypto_alloc_skcipher], [
1421                 #include <crypto/skcipher.h>
1422         ],[
1423                 crypto_alloc_skcipher(NULL, 0, 0);
1424         ])
1425 ])
1426 AC_DEFUN([LC_HAVE_CRYPTO_ALLOC_SKCIPHER], [
1427         AC_MSG_CHECKING([if crypto_alloc_skcipher is defined])
1428         LB2_LINUX_TEST_RESULT([crypto_alloc_skcipher], [
1429                 AC_DEFINE(HAVE_CRYPTO_ALLOC_SKCIPHER, 1,
1430                         [crypto_alloc_skcipher is defined])
1431         ])
1432 ]) # LC_HAVE_CRYPTO_ALLOC_SKCIPHER
1433
1434 #
1435 # LC_HAVE_INTERVAL_EXP_BLK_INTEGRITY
1436 #
1437 # 4.3 replace interval with interval_exp in 'struct blk_integrity'
1438 # 'struct blk_integrity_profile' is also added in this version,
1439 # thus use this to determine whether 'struct blk_integrity' has profile
1440 #
1441 AC_DEFUN([LC_SRC_HAVE_INTERVAL_EXP_BLK_INTEGRITY], [
1442         LB2_LINUX_TEST_SRC([blk_integrity_interval_exp], [
1443                 #include <linux/blkdev.h>
1444         ],[
1445                 ((struct blk_integrity *)0)->interval_exp = 0;
1446         ])
1447 ])
1448 AC_DEFUN([LC_HAVE_INTERVAL_EXP_BLK_INTEGRITY], [
1449         AC_MSG_CHECKING([if 'blk_integrity.interval_exp' exist])
1450         LB2_LINUX_TEST_RESULT([blk_integrity_interval_exp], [
1451                 AC_DEFINE(HAVE_INTERVAL_EXP_BLK_INTEGRITY, 1,
1452                         [blk_integrity.interval_exp exist])
1453         ])
1454 ]) # LC_HAVE_INTERVAL_EXP_BLK_INTEGRITY
1455
1456 #
1457 # LC_HAVE_CACHE_HEAD_HLIST
1458 #
1459 # 4.3 kernel swiched to hlist for cache_head
1460 #
1461 AC_DEFUN([LC_SRC_HAVE_CACHE_HEAD_HLIST], [
1462         LB2_LINUX_TEST_SRC([cache_head_has_hlist], [
1463                 #include <linux/sunrpc/cache.h>
1464         ],[
1465                 do {} while(sizeof(((struct cache_head *)0)->cache_list));
1466         ])
1467 ])
1468 AC_DEFUN([LC_HAVE_CACHE_HEAD_HLIST], [
1469         AC_MSG_CHECKING([if 'struct cache_head' has 'cache_list' field])
1470         LB2_LINUX_TEST_RESULT([cache_head_has_hlist], [
1471                 AC_DEFINE(HAVE_CACHE_HEAD_HLIST, 1,
1472                         [cache_head has hlist cache_list])
1473         ])
1474 ]) # LC_HAVE_CACHE_HEAD_HLIST
1475
1476 #
1477 # LC_HAVE_XATTR_HANDLER_SIMPLIFIED
1478 #
1479 # Kernel version 4.3 commit e409de992e3ea3674393465f07cc71c948edd87a
1480 # simplified xattr_handler handling by passing in the handler pointer
1481 #
1482 AC_DEFUN([LC_SRC_HAVE_XATTR_HANDLER_SIMPLIFIED], [
1483         LB2_LINUX_TEST_SRC([xattr_handler_simplified], [
1484                 #include <linux/xattr.h>
1485         ],[
1486                 struct xattr_handler handler;
1487
1488                 ((struct xattr_handler *)0)->get(&handler, NULL, NULL, NULL, 0);
1489                 ((struct xattr_handler *)0)->set(&handler, NULL, NULL, NULL, 0, 0);
1490         ],[-Werror])
1491 ])
1492 AC_DEFUN([LC_HAVE_XATTR_HANDLER_SIMPLIFIED], [
1493         AC_MSG_CHECKING([if 'struct xattr_handler' functions pass in handler pointer])
1494         LB2_LINUX_TEST_RESULT([xattr_handler_simplified], [
1495                 AC_DEFINE(HAVE_XATTR_HANDLER_SIMPLIFIED, 1,
1496                         [handler pointer is parameter])
1497         ])
1498 ]) # LC_HAVE_XATTR_HANDLER_SIMPLIFIED
1499
1500 #
1501 # LC_HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD
1502 #
1503 # 4.3 replace interval with interval_exp in 'struct blk_integrity'.
1504 #
1505 AC_DEFUN([LC_SRC_HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD], [
1506         LB2_LINUX_TEST_SRC([bio_integrity_payload_bip_iter], [
1507                 #include <linux/bio.h>
1508         ],[
1509                 ((struct bio_integrity_payload *)0)->bip_iter.bi_size = 0;
1510         ])
1511 ])
1512 AC_DEFUN([LC_HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD], [
1513         AC_MSG_CHECKING([if 'bio_integrity_payload.bip_iter' exist])
1514         LB2_LINUX_TEST_RESULT([bio_integrity_payload_bip_iter], [
1515                 AC_DEFINE(HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD, 1,
1516                         [bio_integrity_payload.bip_iter exist])
1517         ])
1518 ]) # LC_HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD
1519
1520 #
1521 # LC_BIO_INTEGRITY_PREP_FN
1522 #
1523 # Lustre kernel patch extents bio_integrity_prep to accept optional
1524 # generate/verify_fn as extra args.
1525 #
1526 AC_DEFUN([LC_SRC_BIO_INTEGRITY_PREP_FN], [
1527         LB2_LINUX_TEST_SRC([bio_integrity_prep_fn], [
1528                 #include <linux/bio.h>
1529         ],[
1530                 bio_integrity_prep_fn(NULL, NULL, NULL);
1531         ])
1532 ])
1533 AC_DEFUN([LC_BIO_INTEGRITY_PREP_FN], [
1534         AC_MSG_CHECKING([if 'bio_integrity_prep_fn' exists])
1535         LB2_LINUX_TEST_RESULT([bio_integrity_prep_fn], [
1536                 AC_DEFINE(HAVE_BIO_INTEGRITY_PREP_FN, 1,
1537                         [kernel has bio_integrity_prep_fn])
1538                 AC_SUBST(PATCHED_INTEGRITY_INTF)
1539         ],[
1540                 AC_SUBST(PATCHED_INTEGRITY_INTF, [#])
1541         ])
1542 ]) # LC_BIO_INTEGRITY_PREP_FN
1543
1544 # LC_BIO_INTEGRITY_PREP_FN_RETURNS_BOOL
1545 #
1546 # 13 kernel integrity API has changed and in 4.13+
1547 # (as well as in rhel 8.4) bio_integrity_prep() returns boolean true
1548 # on success.
1549 #
1550 AC_DEFUN([LC_SRC_BIO_INTEGRITY_PREP_FN_RETURNS_BOOL], [
1551         LB2_LINUX_TEST_SRC([bio_integrity_prep_ret_bool], [
1552                 #include <linux/bio.h>
1553                 #include <linux/typecheck.h>
1554         ],[
1555                 #pragma GCC diagnostic warning "-Werror"
1556                 typedef bool (*bio_integrity_prep_type)(struct bio *bio) ;
1557
1558                 typecheck_fn(bio_integrity_prep_type, bio_integrity_prep);
1559         ])
1560 ])
1561 AC_DEFUN([LC_BIO_INTEGRITY_PREP_FN_RETURNS_BOOL], [
1562         AC_MSG_CHECKING([if 'bio_integrity_prep_fn' returns bool])
1563         LB2_LINUX_TEST_RESULT([bio_integrity_prep_ret_bool], [
1564                 AC_DEFINE(HAVE_BIO_INTEGRITY_PREP_FN_RETURNS_BOOL, 1,
1565                         [bio_integrity_prep_fn returns bool])
1566         ])
1567 ]) # LC_BIO_INTEGRITY_PREP_FN_RETURNS_BOOL
1568
1569 #
1570 # LC_HAVE_BI_OPF
1571 #
1572 # 4.4/4.8 redefined bi_rw as bi_opf (SLES12/kernel commit 4382e33ad37486)
1573 #
1574 AC_DEFUN([LC_SRC_HAVE_BI_OPF], [
1575         LB2_LINUX_TEST_SRC([have_bi_opf], [
1576                 #include <linux/bio.h>
1577         ],[
1578                 struct bio bio;
1579
1580                 bio.bi_opf = 0;
1581         ])
1582 ])
1583 AC_DEFUN([LC_HAVE_BI_OPF], [
1584         AC_MSG_CHECKING([if Linux kernel has bi_opf in struct bio])
1585         LB2_LINUX_TEST_RESULT([have_bi_opf], [
1586                 AC_DEFINE(HAVE_BI_OPF, 1, [struct bio has bi_opf])
1587         ])
1588 ]) # LC_HAVE_BI_OPF
1589
1590 #
1591 # LC_HAVE_SUBMIT_BIO_2ARGS
1592 #
1593 # 4.4 removed an argument from submit_bio
1594 #
1595 AC_DEFUN([LC_SRC_HAVE_SUBMIT_BIO_2ARGS], [
1596         LB2_LINUX_TEST_SRC([have_submit_bio_2args], [
1597                 #include <linux/bio.h>
1598         ],[
1599                 struct bio bio;
1600                 submit_bio(READ, &bio);
1601         ])
1602 ])
1603 AC_DEFUN([LC_HAVE_SUBMIT_BIO_2ARGS], [
1604         AC_MSG_CHECKING([if submit_bio takes two arguments])
1605         LB2_LINUX_TEST_RESULT([have_submit_bio_2args], [
1606                 AC_DEFINE(HAVE_SUBMIT_BIO_2ARGS, 1,
1607                         [submit_bio takes two arguments])
1608         ])
1609 ]) # LC_HAVE_SUBMIT_BIO_2_ARGS
1610
1611 #
1612 # LC_HAVE_CLEAN_BDEV_ALIASES
1613 #
1614 # 4.4/4.9 unmap_underlying_metadata was replaced by clean_bdev_aliases
1615 # (SLES12/kernel commit 29f3ad7d8380364c)
1616 #
1617 AC_DEFUN([LC_SRC_HAVE_CLEAN_BDEV_ALIASES], [
1618         LB2_LINUX_TEST_SRC([have_clean_bdev_aliases], [
1619                 #include <linux/buffer_head.h>
1620         ],[
1621                 clean_bdev_aliases(NULL,1,1);
1622         ])
1623 ])
1624 AC_DEFUN([LC_HAVE_CLEAN_BDEV_ALIASES], [
1625         AC_MSG_CHECKING([if kernel has clean_bdev_aliases])
1626         LB2_LINUX_TEST_RESULT([have_clean_bdev_aliases], [
1627                 AC_DEFINE(HAVE_CLEAN_BDEV_ALIASES, 1,
1628                         [kernel has clean_bdev_aliases])
1629         ])
1630 ]) # LC_HAVE_CLEAN_BDEV_ALIASES
1631
1632 #
1633 # LC_HAVE_LOCKS_LOCK_FILE_WAIT
1634 #
1635 # 4.4 kernel have moved locks API users to
1636 # locks_lock_inode_wait()
1637 #
1638 AC_DEFUN([LC_SRC_HAVE_LOCKS_LOCK_FILE_WAIT], [
1639         LB2_LINUX_TEST_SRC([locks_lock_file_wait], [
1640                 #include <linux/fs.h>
1641         ],[
1642                 locks_lock_file_wait(NULL, NULL);
1643         ])
1644 ])
1645 AC_DEFUN([LC_HAVE_LOCKS_LOCK_FILE_WAIT], [
1646         AC_MSG_CHECKING([if 'locks_lock_file_wait' exists])
1647         LB2_LINUX_TEST_RESULT([locks_lock_file_wait], [
1648                 AC_DEFINE(HAVE_LOCKS_LOCK_FILE_WAIT, 1,
1649                         [kernel has locks_lock_file_wait])
1650         ])
1651 ]) # LC_HAVE_LOCKS_LOCK_FILE_WAIT
1652
1653 #
1654 # LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
1655 #
1656 # 4.4 kernel merged type-specific data with the payload data for keys
1657 #
1658 AC_DEFUN([LC_SRC_HAVE_KEY_PAYLOAD_DATA_ARRAY], [
1659         LB2_LINUX_TEST_SRC([key_payload_data_array], [
1660                 #include <linux/key.h>
1661         ],[
1662                 struct key key = { };
1663
1664                 key.payload.data[0] = NULL;
1665         ])
1666 ])
1667 AC_DEFUN([LC_HAVE_KEY_PAYLOAD_DATA_ARRAY], [
1668         AC_MSG_CHECKING([if 'struct key' has 'payload.data' as an array])
1669         LB2_LINUX_TEST_RESULT([key_payload_data_array], [
1670                 AC_DEFINE(HAVE_KEY_PAYLOAD_DATA_ARRAY, 1, [payload.data is an array])
1671         ])
1672 ]) # LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
1673
1674 #
1675 # LC_HAVE_XATTR_HANDLER_NAME
1676 #
1677 # Kernel version 4.4 commit 98e9cb5711c68223f0e4d5201b9a6add255ec550
1678 # add a name member to struct xattr_handler
1679 #
1680 AC_DEFUN([LC_SRC_HAVE_XATTR_HANDLER_NAME], [
1681         LB2_LINUX_TEST_SRC([xattr_handler_name], [
1682                 #include <linux/xattr.h>
1683         ],[
1684                 ((struct xattr_handler *)NULL)->name = NULL;
1685         ],[-Werror])
1686 ])
1687 AC_DEFUN([LC_HAVE_XATTR_HANDLER_NAME], [
1688         AC_MSG_CHECKING([if 'struct xattr_handler' has a name member])
1689         LB2_LINUX_TEST_RESULT([xattr_handler_name], [
1690                 AC_DEFINE(HAVE_XATTR_HANDLER_NAME, 1,
1691                         [xattr_handler has a name member])
1692         ])
1693 ]) # LC_HAVE_XATTR_HANDLER_NAME
1694
1695 #
1696 # LC_HAVE_FILE_DENTRY
1697 #
1698 # 4.5 adds wrapper file_dentry
1699 #
1700 AC_DEFUN([LC_SRC_HAVE_FILE_DENTRY], [
1701         LB2_LINUX_TEST_SRC([file_dentry], [
1702                 #include <linux/fs.h>
1703         ],[
1704                 file_dentry(NULL);
1705         ])
1706 ])
1707 AC_DEFUN([LC_HAVE_FILE_DENTRY], [
1708         AC_MSG_CHECKING([if Linux kernel has 'file_dentry'])
1709         LB2_LINUX_TEST_RESULT([file_dentry], [
1710                 AC_DEFINE(HAVE_FILE_DENTRY, 1, [kernel has file_dentry])
1711         ])
1712 ]) # LC_HAVE_FILE_DENTRY
1713
1714 #
1715 # LC_HAVE_INODE_LOCK
1716 #
1717 # 4.5 introduced inode_lock
1718 #
1719 AC_DEFUN([LC_SRC_HAVE_INODE_LOCK], [
1720         LB2_LINUX_TEST_SRC([inode_lock], [
1721                 #include <linux/fs.h>
1722         ],[
1723                 inode_lock(NULL);
1724         ])
1725 ])
1726 AC_DEFUN([LC_HAVE_INODE_LOCK], [
1727         AC_MSG_CHECKING([if 'inode_lock' is defined])
1728         LB2_LINUX_TEST_RESULT([inode_lock], [
1729                 AC_DEFINE(HAVE_INODE_LOCK, 1, [inode_lock is defined])
1730         ])
1731 ]) # LC_HAVE_INODE_LOCK
1732
1733 #
1734 # LC_HAVE_IOP_GET_LINK
1735 #
1736 # 4.5 vfs replaced iop->follow_link with
1737 # iop->get_link
1738 #
1739 AC_DEFUN([LC_SRC_HAVE_IOP_GET_LINK], [
1740         LB2_LINUX_TEST_SRC([inode_ops_get_link], [
1741                 #include <linux/fs.h>
1742         ],[
1743                 struct inode_operations iop;
1744                 iop.get_link = NULL;
1745         ])
1746 ])
1747 AC_DEFUN([LC_HAVE_IOP_GET_LINK], [
1748         AC_MSG_CHECKING([if 'iop' has 'get_link'])
1749         LB2_LINUX_TEST_RESULT([inode_ops_get_link], [
1750                 AC_DEFINE(HAVE_IOP_GET_LINK, 1, [have iop get_link])
1751         ])
1752 ]) # LC_HAVE_IOP_GET_LINK
1753
1754 #
1755 # LC_HAVE_IN_COMPAT_SYSCALL
1756 #
1757 # 4.6 renamed is_compat_task to in_compat_syscall
1758 #
1759 AC_DEFUN([LC_SRC_HAVE_IN_COMPAT_SYSCALL], [
1760         LB2_LINUX_TEST_SRC([in_compat_syscall], [
1761                 #include <linux/compat.h>
1762         ],[
1763                 in_compat_syscall();
1764         ])
1765 ])
1766 AC_DEFUN([LC_HAVE_IN_COMPAT_SYSCALL], [
1767         AC_MSG_CHECKING([if 'in_compat_syscall' is defined])
1768         LB2_LINUX_TEST_RESULT([in_compat_syscall], [
1769                 AC_DEFINE(HAVE_IN_COMPAT_SYSCALL, 1, [have in_compat_syscall])
1770         ])
1771 ]) # LC_HAVE_IN_COMPAT_SYSCALL
1772
1773 #
1774 # LC_HAVE_XATTR_HANDLER_INODE_PARAM
1775 #
1776 # Kernel version 4.6 commit b296821a7c42fa58baa17513b2b7b30ae66f3336
1777 # and commit 5930122683dff58f0846b0f0405b4bd598a3ba6a added inode parameter
1778 # to xattr_handler functions
1779 #
1780 AC_DEFUN([LC_SRC_HAVE_XATTR_HANDLER_INODE_PARAM], [
1781         LB2_LINUX_TEST_SRC([xattr_handler_inode_param], [
1782                 #include <linux/xattr.h>
1783         ],[
1784                 const struct xattr_handler handler;
1785
1786                 ((struct xattr_handler *)0)->get(&handler, NULL, NULL, NULL, NULL, 0);
1787                 ((struct xattr_handler *)0)->set(&handler, NULL, NULL, NULL, NULL, 0, 0);
1788         ],[-Werror])
1789 ])
1790 AC_DEFUN([LC_HAVE_XATTR_HANDLER_INODE_PARAM], [
1791         AC_MSG_CHECKING([if 'struct xattr_handler' functions have inode parameter])
1792         LB2_LINUX_TEST_RESULT([xattr_handler_inode_param], [
1793                 AC_DEFINE(HAVE_XATTR_HANDLER_INODE_PARAM, 1, [needs inode parameter])
1794         ])
1795 ]) # LC_HAVE_XATTR_HANDLER_INODE_PARAM
1796
1797 #
1798 # LC_D_IN_LOOKUP
1799 #
1800 # Kernel version 4.6 commit 85c7f81041d57cfe9dc97f4680d5586b54534a39
1801 # introduced parallel lookups in the VFS layer. The inline function
1802 # d_in_lookup was added to notify when the same item was being queried
1803 # at the same time.
1804 #
1805 AC_DEFUN([LC_SRC_D_IN_LOOKUP], [
1806         LB2_LINUX_TEST_SRC([d_in_lookup], [
1807                 #include <linux/dcache.h>
1808         ],[
1809                 d_in_lookup(NULL);
1810         ],[-Werror])
1811 ])
1812 AC_DEFUN([LC_D_IN_LOOKUP], [
1813         AC_MSG_CHECKING([if 'd_in_lookup' is defined])
1814         LB2_LINUX_TEST_RESULT([d_in_lookup], [
1815                 AC_DEFINE(HAVE_D_IN_LOOKUP, 1, [d_in_lookup is defined])
1816         ])
1817 ]) # LC_D_IN_LOOKUP
1818
1819 #
1820 # LC_LOCK_PAGE_MEMCG
1821 #
1822 # Kernel version 4.6 adds lock_page_memcg(page)
1823 # Linux commit v5.15-12273-gab2f9d2d3626
1824 #   mm: unexport {,un}lock_page_memcg
1825 #
1826 AC_DEFUN([LC_SRC_LOCK_PAGE_MEMCG], [
1827         LB2_LINUX_TEST_SRC([lock_page_memcg], [
1828                 #include <linux/memcontrol.h>
1829         ],[
1830                 lock_page_memcg(NULL);
1831         ],[-Werror])
1832 ])
1833 AC_DEFUN([LC_LOCK_PAGE_MEMCG], [
1834         AC_MSG_CHECKING([if 'lock_page_memcg' is defined])
1835         LB2_LINUX_TEST_RESULT([lock_page_memcg], [
1836                 AC_DEFINE(HAVE_LOCK_PAGE_MEMCG, 1, [lock_page_memcg is defined])
1837         ])
1838 ]) # LC_LOCK_PAGE_MEMCG
1839
1840 #
1841 # LC_HAVE_DOWN_WRITE_KILLABLE
1842 #
1843 # Kernel version v4.6-rc3-28-g916633a40370
1844 #
1845 AC_DEFUN([LC_SRC_HAVE_DOWN_WRITE_KILLABLE], [
1846         LB2_LINUX_TEST_SRC([down_write_killable], [
1847                 #include <linux/rwsem.h>
1848
1849                 struct rw_semaphore sem;
1850         ],[
1851                 int rc;
1852
1853                 rc = down_write_killable(&sem);
1854                 (void)rc;
1855         ])
1856 ])
1857 AC_DEFUN([LC_HAVE_DOWN_WRITE_KILLABLE], [
1858         AC_MSG_CHECKING([if down_write_killable exists])
1859         LB2_LINUX_TEST_RESULT([down_write_killable], [
1860                 AC_DEFINE(HAVE_DOWN_WRITE_KILLABLE, 1,
1861                         [down_write_killable function exists])
1862         ])
1863 ]) # LC_HAVE_DOWN_WRITE_KILLABLE
1864
1865 #
1866 # LC_D_INIT
1867 #
1868 # Kernel version 4.7-rc5 commit 285b102d3b745f3c2c110c9c327741d87e64aacc
1869 # add new d_init to initialize dentry at allocation time
1870 #
1871 AC_DEFUN([LC_SRC_D_INIT], [
1872         LB2_LINUX_TEST_SRC([d_init], [
1873                 #include <linux/dcache.h>
1874         ],[
1875                 struct dentry_operations ops = { };
1876                 int rc;
1877
1878                 rc = ops.d_init(NULL);
1879         ])
1880 ])
1881 AC_DEFUN([LC_D_INIT], [
1882         AC_MSG_CHECKING([if dentry operations supports 'd_init'])
1883         LB2_LINUX_TEST_RESULT([d_init], [
1884                 AC_DEFINE(HAVE_D_INIT, 1, ['d_init' exists])
1885         ])
1886 ]) # LC_D_INIT
1887
1888 #
1889 # LC_DIRECTIO_2ARGS
1890 #
1891 # Kernel version 4.7 commit c8b8e32d700fe943a935e435ae251364d016c497
1892 # direct-io: eliminate the offset argument to ->direct_IO
1893 #
1894 AC_DEFUN([LC_SRC_DIRECTIO_2ARGS], [
1895         LB2_LINUX_TEST_SRC([direct_io_2args], [
1896                 #include <linux/fs.h>
1897         ],[
1898                 struct address_space_operations ops = { };
1899                 struct iov_iter *iter = NULL;
1900                 struct kiocb *iocb = NULL;
1901                 int rc;
1902
1903                 rc = ops.direct_IO(iocb, iter);
1904         ])
1905 ])
1906 AC_DEFUN([LC_DIRECTIO_2ARGS], [
1907         AC_MSG_CHECKING([if '->direct_IO()' takes 2 arguments])
1908         LB2_LINUX_TEST_RESULT([direct_io_2args], [
1909                 AC_DEFINE(HAVE_DIRECTIO_2ARGS, 1, [direct_IO has 2 arguments])
1910         ])
1911 ]) # LC_DIRECTIO_2ARGS
1912
1913 #
1914 # LC_GENERIC_WRITE_SYNC_2ARGS
1915 #
1916 # Kernel version 4.7 commit dde0c2e79848298cc25621ad080d47f94dbd7cce
1917 # fs: add IOCB_SYNC and IOCB_DSYNC
1918 #
1919 AC_DEFUN([LC_SRC_GENERIC_WRITE_SYNC_2ARGS], [
1920         LB2_LINUX_TEST_SRC([generic_write_sync_2args], [
1921                 #include <linux/fs.h>
1922         ],[
1923                 struct kiocb *iocb = NULL;
1924                 ssize_t rc;
1925
1926                 rc = generic_write_sync(iocb, 0);
1927         ])
1928 ])
1929 AC_DEFUN([LC_GENERIC_WRITE_SYNC_2ARGS], [
1930         AC_MSG_CHECKING([if 'generic_write_sync()' takes 2 arguments])
1931         LB2_LINUX_TEST_RESULT([generic_write_sync_2args], [
1932                 AC_DEFINE(HAVE_GENERIC_WRITE_SYNC_2ARGS, 1,
1933                         [generic_write_sync has 2 arguments])
1934         ])
1935 ]) # LC_GENERIC_WRITE_SYNC_2ARGS
1936
1937 #
1938 # LC_FOP_ITERATE_SHARED
1939 #
1940 # Kernel v4.6-rc3-29-g6192269 adds iterate_shared method to file_operations
1941 #
1942 AC_DEFUN([LC_SRC_FOP_ITERATE_SHARED], [
1943         LB2_LINUX_TEST_SRC([fop_iterate_shared], [
1944                 #include <linux/fs.h>
1945         ],[
1946                 struct file_operations fop;
1947                 fop.iterate_shared = NULL;
1948         ])
1949 ])
1950 AC_DEFUN([LC_FOP_ITERATE_SHARED], [
1951         AC_MSG_CHECKING([if 'file_operations' has 'iterate_shared'])
1952         LB2_LINUX_TEST_RESULT([fop_iterate_shared], [
1953                 AC_DEFINE(HAVE_FOP_ITERATE_SHARED, 1,
1954                         [file_operations has iterate_shared])
1955         ])
1956 ]) # LC_FOP_ITERATE_SHARED
1957
1958 #
1959 # LC_EXPORT_DEFAULT_FILE_SPLICE_READ
1960 #
1961 # 4.8-rc8 commit 82c156f853840645604acd7c2cebcb75ed1b6652 switched
1962 # generic_file_splice_read() to using ->read_iter. We can test this
1963 # change since default_file_splice_read() is no longer exported.
1964 #
1965 AC_DEFUN([LC_EXPORT_DEFAULT_FILE_SPLICE_READ], [
1966 LB_CHECK_EXPORT([default_file_splice_read], [fs/splice.c],
1967         [AC_DEFINE(HAVE_DEFAULT_FILE_SPLICE_READ_EXPORT, 1,
1968                         [default_file_splice_read is exported])])
1969 ]) # LC_EXPORT_DEFAULT_FILE_SPLCE_READ
1970
1971 #
1972 # LC_HAVE_POSIX_ACL_VALID_USER_NS
1973 #
1974 # 4.8 posix_acl_valid takes struct user_namespace
1975 #
1976 AC_DEFUN([LC_SRC_HAVE_POSIX_ACL_VALID_USER_NS], [
1977         LB2_LINUX_TEST_SRC([posix_acl_valid], [
1978                 #include <linux/fs.h>
1979                 #include <linux/posix_acl.h>
1980         ],[
1981                 posix_acl_valid((struct user_namespace*)NULL, (const struct posix_acl*)NULL);
1982         ])
1983 ])
1984 AC_DEFUN([LC_HAVE_POSIX_ACL_VALID_USER_NS], [
1985         AC_MSG_CHECKING([if 'posix_acl_valid' takes 'struct user_namespace'])
1986         LB2_LINUX_TEST_RESULT([posix_acl_valid], [
1987                 AC_DEFINE(HAVE_POSIX_ACL_VALID_USER_NS, 1,
1988                         [posix_acl_valid takes struct user_namespace])
1989         ])
1990 ]) # LC_HAVE_POSIX_ACL_VALID_USER_NS
1991
1992 #
1993 # LC_D_COMPARE_4ARGS
1994 #
1995 # Kernel version 4.8 commit 6fa67e707559303e086303aeecc9e8b91ef497d5
1996 # get rid of 'parent' argument of ->d_compare()
1997 #
1998 AC_DEFUN([LC_SRC_D_COMPARE_4ARGS], [
1999         LB2_LINUX_TEST_SRC([d_compare_4args], [
2000                 #include <linux/dcache.h>
2001         ],[
2002                 ((struct dentry_operations*)0)->d_compare(NULL,0,NULL,NULL);
2003         ])
2004 ])
2005 AC_DEFUN([LC_D_COMPARE_4ARGS], [
2006         AC_MSG_CHECKING([if 'd_compare' taken 4 arguments])
2007         LB2_LINUX_TEST_RESULT([d_compare_4args], [
2008                 AC_DEFINE(HAVE_D_COMPARE_4ARGS, 1,
2009                         [d_compare need 4 arguments])
2010         ])
2011 ]) # LC_D_COMPARE_4ARGS
2012
2013 #
2014 # LC_FULL_NAME_HASH_3ARGS
2015 #
2016 # Kernel version 4.8 commit 8387ff2577eb9ed245df9a39947f66976c6bcd02
2017 # vfs: make the string hashes salt the hash
2018 #
2019 AC_DEFUN([LC_SRC_FULL_NAME_HASH_3ARGS], [
2020         LB2_LINUX_TEST_SRC([full_name_hash_3args], [
2021                 #include <linux/stringhash.h>
2022         ],[
2023                 unsigned int hash;
2024                 hash = full_name_hash(NULL,NULL,0);
2025         ])
2026 ])
2027 AC_DEFUN([LC_FULL_NAME_HASH_3ARGS], [
2028         AC_MSG_CHECKING([if 'full_name_hash' taken 3 arguments])
2029         LB2_LINUX_TEST_RESULT([full_name_hash_3args], [
2030                 AC_DEFINE(HAVE_FULL_NAME_HASH_3ARGS, 1,
2031                         [full_name_hash need 3 arguments])
2032         ])
2033 ]) # LC_FULL_NAME_HASH_3ARGS
2034
2035 #
2036 # LC_STRUCT_POSIX_ACL_XATTR
2037 #
2038 # Kernel version 4.8 commit 2211d5ba5c6c4e972ba6dbc912b2897425ea6621
2039 # posix_acl: xattr representation cleanups
2040 #
2041 AC_DEFUN([LC_SRC_STRUCT_POSIX_ACL_XATTR], [
2042         LB2_LINUX_TEST_SRC([struct_posix_acl_xattr], [
2043                 #include <linux/fs.h>
2044                 #include <linux/posix_acl_xattr.h>
2045         ],[
2046                 struct posix_acl_xattr_header *h = NULL;
2047                 struct posix_acl_xattr_entry  *e;
2048                 e = (void *)(h + 1);
2049         ])
2050 ])
2051 AC_DEFUN([LC_STRUCT_POSIX_ACL_XATTR], [
2052         AC_MSG_CHECKING([if 'struct posix_acl_xattr_{header,entry}' defined])
2053         LB2_LINUX_TEST_RESULT([struct_posix_acl_xattr], [
2054                 AC_DEFINE(HAVE_STRUCT_POSIX_ACL_XATTR, 1,
2055                         [struct posix_acl_xattr_{header,entry} defined])
2056         ])
2057 ]) # LC_STRUCT_POSIX_ACL_XATTR
2058
2059 #
2060 # LC_IOP_XATTR
2061 #
2062 # Kernel version 4.8 commit fd50ecaddf8372a1d96e0daeaac0f93cf04e4d42
2063 # removed {get,set,remove}xattr inode operations
2064 #
2065 AC_DEFUN([LC_SRC_IOP_XATTR], [
2066         LB2_LINUX_TEST_SRC([inode_ops_xattr], [
2067                 #include <linux/fs.h>
2068         ],[
2069                 struct inode_operations iop;
2070                 iop.setxattr = NULL;
2071                 iop.getxattr = NULL;
2072                 iop.removexattr = NULL;
2073         ])
2074 ])
2075 AC_DEFUN([LC_IOP_XATTR], [
2076         AC_MSG_CHECKING([if 'inode_operations' has {get,set,remove}xattr members])
2077         LB2_LINUX_TEST_RESULT([inode_ops_xattr], [
2078                 AC_DEFINE(HAVE_IOP_XATTR, 1,
2079                         [inode_operations has {get,set,remove}xattr members])
2080         ])
2081 ]) # LC_IOP_XATTR
2082
2083 #
2084 # LC_GROUP_INFO_GID
2085 #
2086 # Kernel version 4.9 commit 81243eacfa400f5f7b89f4c2323d0de9982bb0fb
2087 # cred: simpler, 1D supplementary groups
2088 #
2089 AC_DEFUN([LC_SRC_GROUP_INFO_GID], [
2090         LB2_LINUX_TEST_SRC([group_info_gid], [
2091                 #include <linux/cred.h>
2092         ],[
2093                 kgid_t *p;
2094                 p = ((struct group_info *)0)->gid;
2095         ])
2096 ])
2097 AC_DEFUN([LC_GROUP_INFO_GID], [
2098         AC_MSG_CHECKING([if 'struct group_info' has member 'gid'])
2099         LB2_LINUX_TEST_RESULT([group_info_gid], [
2100                 AC_DEFINE(HAVE_GROUP_INFO_GID, 1,
2101                         [struct group_info has member gid])
2102         ])
2103 ]) # LC_GROUP_INFO_GID
2104
2105 #
2106 # LC_VFS_SETXATTR
2107 #
2108 # Kernel version 4.9 commit 5d6c31910bc0713e37628dc0ce677dcb13c8ccf4
2109 # added __vfs_{get,set,remove}xattr helpers
2110 #
2111 AC_DEFUN([LC_SRC_VFS_SETXATTR], [
2112         LB2_LINUX_TEST_SRC([vfs_setxattr], [
2113                 #include <linux/xattr.h>
2114         ],[
2115                 __vfs_setxattr(NULL, NULL, NULL, NULL, 0, 0);
2116         ])
2117 ])
2118 AC_DEFUN([LC_VFS_SETXATTR], [
2119         AC_MSG_CHECKING([if '__vfs_setxattr' helper is available])
2120         LB2_LINUX_TEST_RESULT([vfs_setxattr], [
2121                 AC_DEFINE(HAVE_VFS_SETXATTR, 1, ['__vfs_setxattr' is available])
2122         ])
2123 ]) # LC_VFS_SETXATTR
2124
2125 #
2126 # LC_POSIX_ACL_UPDATE_MODE
2127 #
2128 # Kernel version 4.9 commit 073931017b49d9458aa351605b43a7e34598caef
2129 # posix_acl: Clear SGID bit when setting file permissions
2130 #
2131 AC_DEFUN([LC_SRC_POSIX_ACL_UPDATE_MODE], [
2132         LB2_LINUX_TEST_SRC([posix_acl_update_mode], [
2133                 #include <linux/fs.h>
2134                 #include <linux/posix_acl.h>
2135         ],[
2136                 posix_acl_update_mode(NULL, NULL, NULL);
2137         ])
2138 ])
2139 AC_DEFUN([LC_POSIX_ACL_UPDATE_MODE], [
2140         AC_MSG_CHECKING([if 'posix_acl_update_mode' exists])
2141         LB2_LINUX_TEST_RESULT([posix_acl_update_mode], [
2142                 AC_DEFINE(HAVE_POSIX_ACL_UPDATE_MODE, 1,
2143                         ['posix_acl_update_mode' is available])
2144         ])
2145 ]) # LC_POSIX_ACL_UPDATE_MODE
2146
2147 #
2148 # LC_HAVE_BDI_IO_PAGES
2149 #
2150 # Kernel version 4.9 commit 9491ae4aade6814afcfa67f4eb3e3342c2b39750
2151 # mm: don't cap request size based on read-ahead setting
2152 # This patch introduces a bdi hint, io_pages.
2153 #
2154 AC_DEFUN([LC_SRC_HAVE_BDI_IO_PAGES], [
2155         LB2_LINUX_TEST_SRC([bdi_has_io_pages], [
2156                 #include <linux/backing-dev.h>
2157         ],[
2158                 struct backing_dev_info info;
2159
2160                 info.io_pages = 0;
2161         ])
2162 ])
2163 AC_DEFUN([LC_HAVE_BDI_IO_PAGES], [
2164         AC_MSG_CHECKING([if 'struct backing_dev_info' has 'io_pages' field])
2165         LB2_LINUX_TEST_RESULT([bdi_has_io_pages], [
2166                 AC_DEFINE(HAVE_BDI_IO_PAGES, 1,
2167                         [backing_dev_info has io_pages])
2168         ])
2169 ]) # LC_HAVE_BDI_IO_PAGES
2170
2171 #
2172 # LC_IOP_GENERIC_READLINK
2173 #
2174 # Kernel version 4.10 commit dfeef68862edd7d4bafe68ef7aeb5f658ef24bb5
2175 # removed generic_readlink from individual file systems
2176 #
2177 AC_DEFUN([LC_SRC_IOP_GENERIC_READLINK], [
2178         LB2_LINUX_TEST_SRC([inode_ops_readlink], [
2179                 #include <linux/fs.h>
2180         ],[
2181                 struct inode_operations iop;
2182                 iop.readlink = generic_readlink;
2183         ])
2184 ])
2185 AC_DEFUN([LC_IOP_GENERIC_READLINK], [
2186         AC_MSG_CHECKING([if 'generic_readlink' still exist])
2187         LB2_LINUX_TEST_RESULT([inode_ops_readlink], [
2188                 AC_DEFINE(HAVE_IOP_GENERIC_READLINK, 1,
2189                         [generic_readlink has been removed])
2190         ])
2191 ]) # LC_IOP_GENERIC_READLINK
2192
2193 #
2194 # LC_HAVE_VM_FAULT_ADDRESS
2195 #
2196 # Kernel version 4.10 commit 1a29d85eb0f19b7d8271923d8917d7b4f5540b3e
2197 # removed virtual_address field. Need to use address field instead
2198 #
2199 AC_DEFUN([LC_SRC_HAVE_VM_FAULT_ADDRESS], [
2200         LB2_LINUX_TEST_SRC([vm_fault_address], [
2201                 #include <linux/mm.h>
2202         ],[
2203                 struct vm_fault vmf = { 0 };
2204                 unsigned long addr = (unsigned long)vmf.address;
2205                 (void)addr;
2206         ])
2207 ])
2208 AC_DEFUN([LC_HAVE_VM_FAULT_ADDRESS], [
2209         AC_MSG_CHECKING([if 'struct vm_fault' replaced virtual_address with address field])
2210         LB2_LINUX_TEST_RESULT([vm_fault_address], [
2211                 AC_DEFINE(HAVE_VM_FAULT_ADDRESS, 1,
2212                         [virtual_address has been replaced by address field])
2213         ])
2214 ]) # LC_HAVE_VM_FAULT_ADDRESS
2215
2216 #
2217 # LC_INODEOPS_ENHANCED_GETATTR
2218 #
2219 # Kernel version 4.11 commit a528d35e8bfcc521d7cb70aaf03e1bd296c8493f
2220 # expanded getattr to be able to get more stat information.
2221 #
2222 AC_DEFUN([LC_SRC_INODEOPS_ENHANCED_GETATTR], [
2223         LB2_LINUX_TEST_SRC([getattr_path], [
2224                 #include <linux/fs.h>
2225         ],[
2226                 struct path path;
2227
2228                 ((struct inode_operations *)1)->getattr(&path, NULL, 0, 0);
2229         ])
2230 ])
2231 AC_DEFUN([LC_INODEOPS_ENHANCED_GETATTR], [
2232         AC_MSG_CHECKING([if 'inode_operations' getattr member can gather advance stats])
2233         LB2_LINUX_TEST_RESULT([getattr_path], [
2234                 AC_DEFINE(HAVE_INODEOPS_ENHANCED_GETATTR, 1,
2235                         [inode_operations .getattr member function can gather advance stats])
2236         ])
2237 ]) # LC_INODEOPS_ENHANCED_GETATTR
2238
2239 #
2240 # LC_VM_OPERATIONS_REMOVE_VMF_ARG
2241 #
2242 # Kernel version 4.11 commit 11bac80004499ea59f361ef2a5516c84b6eab675
2243 # removed struct vm_area_struct as an argument for vm_operations since
2244 # in the same kernel version struct vma_area_struct was folded into
2245 # struct vm_fault.
2246 #
2247 AC_DEFUN([LC_SRC_VM_OPERATIONS_REMOVE_VMF_ARG], [
2248         LB2_LINUX_TEST_SRC([vm_operations_no_vm_area_struct], [
2249                 #include <linux/mm.h>
2250         ],[
2251                 struct vm_fault vmf;
2252
2253                 ((struct vm_operations_struct *)0)->fault(&vmf);
2254                 ((struct vm_operations_struct *)0)->page_mkwrite(&vmf);
2255         ])
2256 ])
2257 AC_DEFUN([LC_VM_OPERATIONS_REMOVE_VMF_ARG], [
2258         AC_MSG_CHECKING([if 'struct vm_operations' removed struct vm_area_struct])
2259         LB2_LINUX_TEST_RESULT([vm_operations_no_vm_area_struct], [
2260                 AC_DEFINE(HAVE_VM_OPS_USE_VM_FAULT_ONLY, 1,
2261                         ['struct vm_operations' remove struct vm_area_struct argument])
2262         ])
2263 ]) # LC_VM_OPERATIONS_REMOVE_VMF_ARG
2264
2265 #
2266 # LC_HAVE_KEY_USAGE_REFCOUNT
2267 #
2268 # Kernel version 4.11 commit fff292914d3a2f1efd05ca71c2ba72a3c663201e
2269 # converted key.usage from atomic_t to refcount_t.
2270 #
2271 AC_DEFUN([LC_SRC_HAVE_KEY_USAGE_REFCOUNT], [
2272         LB2_LINUX_TEST_SRC([key_usage_refcount], [
2273                 #include <linux/key.h>
2274         ],[
2275                 struct key key = { };
2276
2277                 refcount_read(&key.usage);
2278         ])
2279 ])
2280 AC_DEFUN([LC_HAVE_KEY_USAGE_REFCOUNT], [
2281         AC_MSG_CHECKING([if 'key.usage' is refcount_t])
2282         LB2_LINUX_TEST_RESULT([key_usage_refcount], [
2283                 AC_DEFINE(HAVE_KEY_USAGE_REFCOUNT, 1,
2284                         [key.usage is of type refcount_t])
2285         ])
2286 ]) #LC_HAVE_KEY_USAGE_REFCOUNT
2287
2288 #
2289 # LC_HAVE_CRYPTO_MAX_ALG_NAME_128
2290 #
2291 # Kernel version 4.11 commit f437a3f477cce402dbec6537b29e9e33962c9f73
2292 # switched CRYPTO_MAX_ALG_NAME from 64 to 128.
2293 #
2294 AC_DEFUN([LC_SRC_HAVE_CRYPTO_MAX_ALG_NAME_128], [
2295         LB2_LINUX_TEST_SRC([crypto_max_alg_name], [
2296                 #include <linux/crypto.h>
2297         ],[
2298                 #if CRYPTO_MAX_ALG_NAME != 128
2299                 exit(1);
2300                 #endif
2301         ])
2302 ])
2303 AC_DEFUN([LC_HAVE_CRYPTO_MAX_ALG_NAME_128], [
2304         AC_MSG_CHECKING([if 'CRYPTO_MAX_ALG_NAME' is 128])
2305         LB2_LINUX_TEST_RESULT([crypto_max_alg_name], [
2306                 AC_DEFINE(HAVE_CRYPTO_MAX_ALG_NAME_128, 1,
2307                         ['CRYPTO_MAX_ALG_NAME' is 128])
2308         ])
2309 ]) # LC_HAVE_CRYPTO_MAX_ALG_NAME_128
2310
2311 #
2312 # Kernel version 4.12 commit 47f38c539e9a42344ff5a664942075bd4df93876
2313 # CURRENT_TIME is not 64 bit time safe so it was replaced with
2314 # current_time()
2315 #
2316 AC_DEFUN([LC_SRC_CURRENT_TIME], [
2317         LB2_LINUX_TEST_SRC([current_time], [
2318                 #include <linux/fs.h>
2319         ],[
2320                 struct iattr attr;
2321
2322                 attr.ia_atime = current_time(NULL);
2323         ])
2324 ])
2325 AC_DEFUN([LC_CURRENT_TIME], [
2326         AC_MSG_CHECKING([if CURRENT_TIME has been replaced with current_time])
2327         LB2_LINUX_TEST_RESULT([current_time], [
2328                 AC_DEFINE(HAVE_CURRENT_TIME, 1,
2329                         [current_time() has replaced CURRENT_TIME])
2330         ])
2331 ]) # LIBCFS_CURRENT_TIME
2332
2333 #
2334 # LC_HAVE_GET_INODE_USAGE
2335 #
2336 # Kernel version v4.12-rc2-43-g7a9ca53aea10
2337 #
2338 AC_DEFUN([LC_SRC_HAVE_GET_INODE_USAGE], [
2339         LB2_LINUX_TEST_SRC([get_inode_usage], [
2340                 struct inode;
2341                 #include <linux/quota.h>
2342         ],[
2343                 struct dquot_operations ops = { };
2344
2345                 ops.get_inode_usage(NULL, NULL);
2346         ])
2347 ])
2348 AC_DEFUN([LC_HAVE_GET_INODE_USAGE], [
2349         AC_MSG_CHECKING([if get_inode_usage exists])
2350         LB2_LINUX_TEST_RESULT([get_inode_usage], [
2351                 AC_DEFINE(HAVE_GET_INODE_USAGE, 1,
2352                         [get_inode_usage function exists])
2353         ])
2354 ]) # LC_HAVE_GET_INODE_USAGE
2355
2356 #
2357 # LC_SUPER_SETUP_BDI_NAME
2358 #
2359 # Kernel version 4.12 commit 9594caf216dc0fe3e318b34af0127276db661241
2360 # unified bdi handling
2361 #
2362 AC_DEFUN([LC_SRC_SUPER_SETUP_BDI_NAME], [
2363         LB2_LINUX_TEST_SRC([super_setup_bdi_name], [
2364                 #include <linux/fs.h>
2365         ],[
2366                 super_setup_bdi_name(NULL, "lustre");
2367         ])
2368 ])
2369 AC_DEFUN([LC_SUPER_SETUP_BDI_NAME], [
2370         AC_MSG_CHECKING([if 'super_setup_bdi_name' exist])
2371         LB2_LINUX_TEST_RESULT([super_setup_bdi_name], [
2372                 AC_DEFINE(HAVE_SUPER_SETUP_BDI_NAME, 1,
2373                         ['super_setup_bdi_name' is available])
2374         ])
2375 ]) # LC_SUPER_SETUP_BDI_NAME
2376
2377 #
2378 # LC_BI_STATUS
2379 #
2380 # 4.12 replace bi_error to bi_status
2381 #
2382 AC_DEFUN([LC_SRC_BI_STATUS], [
2383         LB2_LINUX_TEST_SRC([bi_status], [
2384                 #include <linux/blk_types.h>
2385         ],[
2386                 ((struct bio *)0)->bi_status = 0;
2387         ])
2388 ])
2389 AC_DEFUN([LC_BI_STATUS], [
2390         AC_MSG_CHECKING([if 'bi_status' exist])
2391         LB2_LINUX_TEST_RESULT([bi_status], [
2392                 AC_DEFINE(HAVE_BI_STATUS, 1, ['bi_status' is available])
2393         ])
2394 ]) # LC_BI_STATUS
2395
2396 #
2397 # LC_BIO_INTEGRITY_ENABLED
2398 #
2399 # 4.13 removed bio_integrity_enabled
2400 #
2401 AC_DEFUN([LC_SRC_BIO_INTEGRITY_ENABLED], [
2402         LB2_LINUX_TEST_SRC([bio_integrity_enabled], [
2403                 #include <linux/bio.h>
2404         ],[
2405                 bio_integrity_enabled(NULL);
2406         ])
2407 ])
2408 AC_DEFUN([LC_BIO_INTEGRITY_ENABLED], [
2409         AC_MSG_CHECKING([if 'bio_integrity_enabled' exist])
2410         LB2_LINUX_TEST_RESULT([bio_integrity_enabled], [
2411                 AC_DEFINE(HAVE_BIO_INTEGRITY_ENABLED, 1,
2412                         ['bio_integrity_enabled' is available])
2413         ])
2414 ]) # LC_BIO_INTEGRITY_ENABLED
2415
2416 #
2417 # LC_PAGEVEC_INIT_ONE_PARAM
2418 #
2419 # 4.14 pagevec_init takes one parameter
2420 #
2421 AC_DEFUN([LC_SRC_PAGEVEC_INIT_ONE_PARAM], [
2422         LB2_LINUX_TEST_SRC([pagevec_init], [
2423                 #include <linux/pagevec.h>
2424         ],[
2425                 pagevec_init(NULL);
2426         ])
2427 ])
2428 AC_DEFUN([LC_PAGEVEC_INIT_ONE_PARAM], [
2429         AC_MSG_CHECKING([if 'pagevec_init' takes one parameter])
2430         LB2_LINUX_TEST_RESULT([pagevec_init], [
2431                 AC_DEFINE(HAVE_PAGEVEC_INIT_ONE_PARAM, 1,
2432                         ['pagevec_init' takes one parameter])
2433         ])
2434 ]) # LC_PAGEVEC_INIT_ONE_PARAM
2435
2436 #
2437 # LC_BI_BDEV
2438 #
2439 # 4.14 replaced bi_bdev to bi_disk
2440 #
2441 AC_DEFUN([LC_SRC_BI_BDEV], [
2442         LB2_LINUX_TEST_SRC([bi_bdev], [
2443                 #include <linux/bio.h>
2444         ],[
2445                 ((struct bio *)0)->bi_bdev = NULL;
2446         ])
2447 ])
2448 AC_DEFUN([LC_BI_BDEV], [
2449         AC_MSG_CHECKING([if 'bi_bdev' exist])
2450         LB2_LINUX_TEST_RESULT([bi_bdev], [
2451                 AC_DEFINE(HAVE_BI_BDEV, 1, ['bi_bdev' is available])
2452         ])
2453 ]) # LC_BI_BDEV
2454
2455 #
2456 # LC_INTERVAL_TREE_CACHED
2457 #
2458 # 4.14 f808c13fd3738948e10196496959871130612b61
2459 # switched INTERVAL_TREE_DEFINE to use cached RB_Trees.
2460 #
2461 AC_DEFUN([LC_SRC_INTERVAL_TREE_CACHED], [
2462         LB2_LINUX_TEST_SRC([itree_cached], [
2463                 #include <linux/interval_tree_generic.h>
2464                 struct foo { struct rb_node rb; int last; int a,b;};
2465                 #define START(n) ((n)->a)
2466                 #define LAST(n) ((n)->b)
2467                 struct rb_root_cached tree;
2468                 INTERVAL_TREE_DEFINE(struct foo, rb, int, last,
2469                         START, LAST, , foo);
2470         ],[
2471                 foo_insert(NULL, &tree);
2472         ],[-Werror])
2473 ])
2474 AC_DEFUN([LC_INTERVAL_TREE_CACHED], [
2475         AC_MSG_CHECKING([if interval_trees use rb_tree_cached])
2476         LB2_LINUX_TEST_RESULT([itree_cached], [
2477                 AC_DEFINE(HAVE_INTERVAL_TREE_CACHED, 1,
2478                         [interval trees use rb_tree_cached])
2479         ])
2480 ]) # LC_INTERVAL_TREE_CACHED
2481
2482 #
2483 # LC_IS_ENCRYPTED
2484 #
2485 # 4.14 introduced IS_ENCRYPTED and S_ENCRYPTED
2486 #
2487 AC_DEFUN([LC_IS_ENCRYPTED], [
2488 LB_CHECK_COMPILE([if IS_ENCRYPTED is defined],
2489 is_encrypted, [
2490         #include <linux/fs.h>
2491 ],[
2492         IS_ENCRYPTED((struct inode *)0);
2493 ],[
2494         has_is_encrypted="yes"
2495 ])
2496 ]) # LC_IS_ENCRYPTED used by LC_CONFIG_CRYPTO
2497
2498 #
2499 # LC_I_PAGES
2500 #
2501 # kernel 4.17 commit b93b016313b3ba8003c3b8bb71f569af91f19fc7
2502 #
2503 AC_DEFUN([LC_SRC_I_PAGES], [
2504         LB2_LINUX_TEST_SRC([i_pages], [
2505                 #include <linux/fs.h>
2506         ],[
2507                 struct address_space mapping = {};
2508                 void *i_pages;
2509
2510                 i_pages = &mapping.i_pages;
2511         ])
2512 ])
2513 AC_DEFUN([LC_I_PAGES], [
2514         AC_MSG_CHECKING([if struct address_space has i_pages])
2515         LB2_LINUX_TEST_RESULT([i_pages], [
2516                 AC_DEFINE(HAVE_I_PAGES, 1, [struct address_space has i_pages])
2517         ])
2518 ]) # LC_I_PAGES
2519
2520 #
2521 # LC_VM_FAULT_T
2522 #
2523 # kernel 4.17 commit 3d3539018d2cbd12e5af4a132636ee7fd8d43ef0
2524 # mm: create the new vm_fault_t type
2525 #
2526 AC_DEFUN([LC_SRC_VM_FAULT_T], [
2527         LB2_LINUX_TEST_SRC([vm_fault_t], [
2528                 #include <linux/mm_types.h>
2529         ],[
2530                 vm_fault_t x = VM_FAULT_SIGBUS;
2531                 (void)x
2532         ])
2533 ])
2534 AC_DEFUN([LC_VM_FAULT_T], [
2535         AC_MSG_CHECKING([if vm_fault_t type exists])
2536         LB2_LINUX_TEST_RESULT([vm_fault_t], [
2537                 AC_DEFINE(HAVE_VM_FAULT_T, 1, [if vm_fault_t type exists])
2538         ])
2539 ]) # LC_VM_FAULT_T
2540
2541 #
2542 # LC_VM_FAULT_RETRY
2543 #
2544 # kernel 4.17 commit 3d3539018d2cbd12e5af4a132636ee7fd8d43ef0
2545 # mm: VM_FAULT_RETRY is defined in enum vm_fault_reason
2546 #
2547 AC_DEFUN([LC_SRC_VM_FAULT_RETRY], [
2548         LB2_LINUX_TEST_SRC([VM_FAULT_RETRY], [
2549                 #include <linux/mm.h>
2550         ],[
2551                 #ifndef VM_FAULT_RETRY
2552                         vm_fault_t x;
2553                         x = VM_FAULT_RETRY;
2554                 #endif
2555         ])
2556 ])
2557 AC_DEFUN([LC_VM_FAULT_RETRY], [
2558         AC_MSG_CHECKING([if VM_FAULT_RETRY is defined])
2559         LB2_LINUX_TEST_RESULT([VM_FAULT_RETRY], [
2560                 AC_DEFINE(HAVE_VM_FAULT_RETRY, 1,
2561                         [if VM_FAULT_RETRY is defined])
2562         ])
2563 ]) # LC_VM_FAULT_RETRY
2564
2565 #
2566 # LC_ALLOC_FILE_PSEUDO
2567 #
2568 # kernel 4.18-rc1 commit d93aa9d82aea80b80f225dbf9c7986df444d8106
2569 # new wrapper: alloc_file_pseudo()
2570 #
2571 AC_DEFUN([LC_SRC_ALLOC_FILE_PSEUDO], [
2572         LB2_LINUX_TEST_SRC([alloc_file_pseudo], [
2573                 #include <linux/file.h>
2574         ],[
2575                 struct file *file;
2576                 file = alloc_file_pseudo(NULL, NULL, "[test]",
2577                                          00000002, NULL);
2578         ])
2579 ])
2580 AC_DEFUN([LC_ALLOC_FILE_PSEUDO], [
2581         AC_MSG_CHECKING([if 'alloc_file_pseudo' is defined])
2582         LB2_LINUX_TEST_RESULT([alloc_file_pseudo], [
2583                 AC_DEFINE(HAVE_ALLOC_FILE_PSEUDO, 1,
2584                         ['alloc_file_pseudo' exist])
2585         ])
2586 ]) # LC_ALLOC_FILE_PSEUDO
2587
2588 #
2589 # LC_INODE_TIMESPEC64
2590 #
2591 # kernel 4.17-rc7 commit 8efd6894ff089adeeac7cb9f32125b85d963d1bc
2592 # fs: add timespec64_truncate()
2593 # kernel 4.18 commit 95582b00838837fc07e042979320caf917ce3fe6
2594 # inode timestamps switched to timespec64
2595 # kernel 4.19-rc2 commit 976516404ff3fab2a8caa8bd6f5efc1437fed0b8
2596 # y2038: remove unused time interfaces
2597 # ...
2598 #  timespec_trunc
2599 # ...
2600 # When inode times are timespec64 stop using the deprecated
2601 # time interfaces.
2602 #
2603 # kernel v5.5-rc1-6-gba70609d5ec6 ba70609d5ec664a8f36ba1c857fcd97a478adf79
2604 # fs: Delete timespec64_trunc()
2605 #
2606 AC_DEFUN([LC_SRC_INODE_TIMESPEC64], [
2607         LB2_LINUX_TEST_SRC([inode_timespec64], [
2608                 #include <linux/fs.h>
2609         ],[
2610                 struct inode *inode = NULL;
2611                 struct timespec64 ts = {0, 1};
2612
2613                 inode->i_atime = ts;
2614                 (void)inode;
2615         ],[-Werror])
2616 ])
2617 AC_DEFUN([LC_INODE_TIMESPEC64], [
2618         AC_MSG_CHECKING([if inode timestamps are struct timespec64])
2619         LB2_LINUX_TEST_RESULT([inode_timespec64], [
2620                 AC_DEFINE(HAVE_INODE_TIMESPEC64, 1,
2621                         [inode times are using timespec64])
2622         ])
2623 ]) # LC_INODE_TIMESPEC64
2624
2625 #
2626 # LC_RADIX_TREE_TAG_SET
2627 #
2628 # kernel 4.20 commit v4.19-rc5-248-g9b89a0355144
2629 # xarray: Add XArray marks - replaced radix_tree_tag_set
2630 #
2631 AC_DEFUN([LC_SRC_RADIX_TREE_TAG_SET], [
2632         LB2_LINUX_TEST_SRC([radix_tree_tag_set], [
2633                 #include <linux/fs.h>
2634                 #include <linux/radix-tree.h>
2635         ],[
2636                 radix_tree_tag_set(NULL, 0, PAGECACHE_TAG_DIRTY);
2637         ],[-Werror])
2638 ])
2639 AC_DEFUN([LC_RADIX_TREE_TAG_SET], [
2640         AC_MSG_CHECKING([if 'radix_tree_tag_set' exists])
2641         LB2_LINUX_TEST_RESULT([radix_tree_tag_set], [
2642                 AC_DEFINE(HAVE_RADIX_TREE_TAG_SET, 1,
2643                         [radix_tree_tag_set exists])
2644         ])
2645 ]) # LC_RADIX_TREE_TAG_SET
2646
2647 #
2648 # LC_UAPI_LINUX_MOUNT_H
2649 #
2650 # kernel 4.20 commit e262e32d6bde0f77fb0c95d977482fc872c51996
2651 # vfs: Suppress MS_* flag defs within the kernel ...
2652 #
2653 AC_DEFUN([LC_SRC_UAPI_LINUX_MOUNT_H], [
2654         LB2_LINUX_TEST_SRC([uapi_linux_mount], [
2655                 #include <uapi/linux/mount.h>
2656         ],[
2657                 int x = MS_RDONLY;
2658                 (void)x;
2659         ],[-Werror])
2660 ])
2661 AC_DEFUN([LC_UAPI_LINUX_MOUNT_H], [
2662         AC_MSG_CHECKING([if MS_RDONLY was moved to uapi/linux/mount.h])
2663         LB2_LINUX_TEST_RESULT([uapi_linux_mount], [
2664                 AC_DEFINE(HAVE_UAPI_LINUX_MOUNT_H, 1,
2665                         [if MS_RDONLY was moved to uapi/linux/mount.h])
2666         ])
2667 ]) # LC_UAPI_LINUX_MOUNT_H
2668
2669 #
2670 # LC_HAVE_SUNRPC_CACHE_HASH_LOCK_IS_A_SPINLOCK
2671 #
2672 # kernel 4.20 commit 1863d77f15da0addcd293a1719fa5d3ef8cde3ca
2673 # SUNRPC: Replace the cache_detail->hash_lock with a regular spinlock
2674 #
2675 # Now that the reader functions are all RCU protected, use a regular
2676 # spinlock rather than a reader/writer lock.
2677 #
2678 AC_DEFUN([LC_SRC_HAVE_SUNRPC_CACHE_HASH_LOCK_IS_A_SPINLOCK], [
2679         LB2_LINUX_TEST_SRC([hash_lock_isa_spinlock_t], [
2680                 #include <linux/sunrpc/cache.h>
2681         ],[
2682                 spinlock_t *lock = &(((struct cache_detail *)0)->hash_lock);
2683                 spin_lock(lock);
2684         ],[-Werror])
2685 ])
2686 AC_DEFUN([LC_HAVE_SUNRPC_CACHE_HASH_LOCK_IS_A_SPINLOCK], [
2687         AC_MSG_CHECKING([if cache_detail->hash_lock is a spinlock])
2688         LB2_LINUX_TEST_RESULT([hash_lock_isa_spinlock_t], [
2689                 AC_DEFINE(HAVE_CACHE_HASH_SPINLOCK, 1,
2690                         [if cache_detail->hash_lock is a spinlock])
2691         ])
2692 ]) # LC_HAVE_SUNRPC_CACHE_HASH_LOCK_IS_A_SPINLOCK
2693
2694 #
2695 # LC_GENL_FAMILY_HAS_RESV_START_OP
2696 #
2697 # Linux v5.0-11693-g3b0f31f2b8c9
2698 #   genetlink: make policy common to family
2699 #
2700 AC_DEFUN([LC_SRC_GENL_FAMILY_HAS_RESV_START_OP], [
2701         LB2_LINUX_TEST_SRC([genl_family_has_resv_start_op], [
2702                 #include <net/genetlink.h>
2703         ],[
2704                 static const struct genl_family family = {
2705                         .resv_start_op = 42,
2706                 };
2707                 (void)family;
2708         ],[-Werror])
2709 ])
2710 AC_DEFUN([LC_GENL_FAMILY_HAS_RESV_START_OP], [
2711         AC_MSG_CHECKING([if struct genl_family has resv_start_op member])
2712         LB2_LINUX_TEST_RESULT([genl_family_has_resv_start_op], [
2713                 AC_DEFINE(GENL_FAMILY_HAS_RESV_START_OP, 1,
2714                         [struct genl_family has resv_start_op member])
2715         ])
2716 ]) # LC_GENL_FAMILY_HAS_RESV_START_OP
2717
2718 #
2719 # LC_HAVE_BVEC_ITER_ALL
2720 #
2721 # kernel 5.1 commit 6dc4f100c175dd0511ae8674786e7c9006cdfbfa
2722 # block: allow bio_for_each_segment_all() to iterate over multi-page bvec
2723 #
2724 AC_DEFUN([LC_SRC_HAVE_BVEC_ITER_ALL], [
2725         LB2_LINUX_TEST_SRC([struct_bvec_iter_all], [
2726                 #include <linux/bvec.h>
2727         ],[
2728                 struct bvec_iter_all iter;
2729                 (void)iter;
2730         ],[-Werror])
2731 ])
2732 AC_DEFUN([LC_HAVE_BVEC_ITER_ALL], [
2733         AC_MSG_CHECKING([if bvec_iter_all exists for multi-page bvec iternation])
2734         LB2_LINUX_TEST_RESULT([struct_bvec_iter_all], [
2735                 AC_DEFINE(HAVE_BVEC_ITER_ALL, 1,
2736                         [if bvec_iter_all exists for multi-page bvec iternation])
2737         ])
2738 ]) # LC_HAVE_BVEC_ITER_ALL
2739
2740 #
2741 # LC_ACCOUNT_PAGE_DIRTIED
2742 #
2743 # After 5.2 kernel page dirtied is not exported
2744 #
2745 AC_DEFUN([LC_ACCOUNT_PAGE_DIRTIED], [
2746 LB_CHECK_EXPORT([account_page_dirtied], [mm/page-writeback.c],
2747         [AC_DEFINE(HAVE_ACCOUNT_PAGE_DIRTIED_EXPORT, 1,
2748                         [account_page_dirtied is exported])])
2749 ]) # LC_ACCOUNT_PAGE_DIRTIED
2750
2751 #
2752 # LC_KEYRING_SEARCH_4ARGS
2753 #
2754 # Kernel 5.2 commit dcf49dbc8077
2755 # keys: Add a 'recurse' flag for keyring searches
2756 #
2757 AC_DEFUN([LC_SRC_KEYRING_SEARCH_4ARGS], [
2758         LB2_LINUX_TEST_SRC([keyring_search_4args], [
2759                 #include <linux/key.h>
2760         ],[
2761                 key_ref_t keyring;
2762                 keyring_search(keyring, NULL, NULL, false);
2763         ])
2764 ])
2765 AC_DEFUN([LC_KEYRING_SEARCH_4ARGS], [
2766         AC_MSG_CHECKING([if 'keyring_search' has 4 args])
2767         LB2_LINUX_TEST_RESULT([keyring_search_4args], [
2768                 AC_DEFINE(HAVE_KEYRING_SEARCH_4ARGS, 1,
2769                         [keyring_search has 4 args])
2770         ])
2771 ]) # LC_KEYRING_SEARCH_4ARGS
2772
2773 #
2774 # LC_BIO_BI_PHYS_SEGMENTS
2775 #
2776 # kernel 5.3-rc1 commit 14ccb66b3f585b2bc21e7256c96090abed5a512c
2777 # block: remove the bi_phys_segments field in struct bio
2778 #
2779 AC_DEFUN([LC_SRC_BIO_BI_PHYS_SEGMENTS], [
2780         LB2_LINUX_TEST_SRC([bye_bio_bi_phys_segments], [
2781                 #include <linux/bio.h>
2782         ],[
2783                 struct bio *bio = NULL;
2784                 bio->bi_phys_segments++;
2785         ],[-Werror])
2786 ])
2787 AC_DEFUN([LC_BIO_BI_PHYS_SEGMENTS], [
2788         AC_MSG_CHECKING([if struct bio has bi_phys_segments member])
2789         LB2_LINUX_TEST_RESULT([bye_bio_bi_phys_segments], [
2790                 AC_DEFINE(HAVE_BIO_BI_PHYS_SEGMENTS, 1,
2791                         [struct bio has bi_phys_segments member])
2792         ])
2793 ]) # LC_BIO_BI_PHYS_SEGMENTS
2794
2795 #
2796 # LC_LM_COMPARE_OWNER_EXISTS
2797 #
2798 # kernel 5.3-rc3 commit f85d93385e9fe6886a751f647f6812a89bf6bee3
2799 # locks: Cleanup lm_compare_owner and lm_owner_key
2800 # removed lm_compare_owner
2801 #
2802 AC_DEFUN([LC_SRC_LM_COMPARE_OWNER_EXISTS], [
2803         LB2_LINUX_TEST_SRC([lock_manager_ops_lm_compare_owner], [
2804                 #include <linux/fs.h>
2805         ],[
2806                 struct lock_manager_operations lm_ops;
2807                 lm_ops.lm_compare_owner = NULL;
2808         ],[-Werror])
2809 ])
2810 AC_DEFUN([LC_LM_COMPARE_OWNER_EXISTS], [
2811         AC_MSG_CHECKING([if lock_manager_operations has lm_compare_owner])
2812         LB2_LINUX_TEST_RESULT([lock_manager_ops_lm_compare_owner], [
2813                 AC_DEFINE(HAVE_LM_COMPARE_OWNER, 1,
2814                         [lock_manager_operations has lm_compare_owner])
2815         ])
2816 ]) # LC_LM_COMPARE_OWNER_EXISTS
2817
2818 #
2819 # LC_FSCRYPT_SUPPORT
2820 #
2821 # 5.4 introduced fscrypt encryption policies v2
2822 #
2823 AC_DEFUN([LC_FSCRYPT_SUPPORT], [
2824 LB_CHECK_COMPILE([for fscrypt in-kernel support],
2825 fscrypt_support, [
2826         #define __FS_HAS_ENCRYPTION 0
2827         #include <linux/fscrypt.h>
2828 ],[
2829         fscrypt_ioctl_get_policy_ex(NULL, NULL);
2830 ],[
2831         has_fscrypt_support="yes"
2832 ])
2833 ]) # LC_FSCRYPT_SUPPORT used by LC_CONFIG_CRYPTO
2834
2835 #
2836 # LC_FSCRYPT_DIGESTED_NAME
2837 #
2838 # Kernel 5.5-rc4 edc440e3d27fb31e6f9663cf413fad97d714c060
2839 # improved the format of no-key names. This results in the
2840 # removal of FSCRYPT_FNAME_DIGEST and FSCRYPT_FNAME_DIGEST_SIZE.
2841 #
2842 AC_DEFUN([LC_SRC_FSCRYPT_DIGESTED_NAME], [
2843         LB2_LINUX_TEST_SRC([fscrypt_digested_name], [
2844                 #include <linux/fscrypt.h>
2845         ],[
2846                 struct fscrypt_digested_name fname;
2847
2848                 fname.hash = 0;
2849         ],[-Werror])
2850 ])
2851 AC_DEFUN([LC_FSCRYPT_DIGESTED_NAME], [
2852         AC_MSG_CHECKING([if fscrypt has 'struct fscrypt_digested_name'])
2853         LB2_LINUX_TEST_RESULT([fscrypt_digested_name], [
2854                 AC_DEFINE(HAVE_FSCRYPT_DIGESTED_NAME, 1,
2855                         ['struct fscrypt_digested_name' exists])
2856         ])
2857 ]) # LC_FSCRYPT_DIGESTED_NAME
2858
2859 #
2860 # LC_FSCRYPT_DUMMY_CONTEXT_ENABLED
2861 #
2862 # Kernel 5.7-rc7 ed318a6cc0b620440e65f48eb527dc3df7269ce4
2863 # replaces fscrypt_dummy_context_enabled() with
2864 # fscrypt_get_dummy_context(). Later kernels rename
2865 # fscrypt_get_dummy_context() to fscrypt_get_dummy_policy()
2866 # which is why we test fscrypt_dummy_context_enabled().
2867 #
2868 AC_DEFUN([LC_SRC_FSCRYPT_DUMMY_CONTEXT_ENABLED], [
2869         LB2_LINUX_TEST_SRC([fscrypt_dummy_context_enabled], [
2870                 #include <linux/fscrypt.h>
2871         ],[
2872                 fscrypt_dummy_context_enabled(NULL);
2873         ],[-Werror])
2874 ])
2875 AC_DEFUN([LC_FSCRYPT_DUMMY_CONTEXT_ENABLED], [
2876         AC_MSG_CHECKING([if fscrypt_dummy_context_enabled() exists])
2877         LB2_LINUX_TEST_RESULT([fscrypt_dummy_context_enabled], [
2878                 AC_DEFINE(HAVE_FSCRYPT_DUMMY_CONTEXT_ENABLED, 1,
2879                         [fscrypt_dummy_context_enabled() exists])
2880         ])
2881 ]) # LC_FSCRYPT_DUMMY_CONTEXT_ENABLED
2882
2883 #
2884 # LC_FSCRYPT_FNAME_ALLOC_BUFFER
2885 #
2886 # Kernel 5.9-rc4 8b10fe68985278de4926daa56ad6af701839e40a
2887 # removed the inode parameter for the fscrypt function
2888 # fscrypt_fname_alloc_buffer()
2889 #
2890 AC_DEFUN([LC_SRC_FSCRYPT_FNAME_ALLOC_BUFFER], [
2891         LB2_LINUX_TEST_SRC([fscrypt_fname_alloc_buffer], [
2892                 #include <linux/fscrypt.h>
2893         ],[
2894                 fscrypt_fname_alloc_buffer(0, NULL);
2895         ],[-Werror])
2896 ])
2897 AC_DEFUN([LC_FSCRYPT_FNAME_ALLOC_BUFFER], [
2898         AC_MSG_CHECKING([if fscrypt_fname_alloc_buffer() removed inode parameter])
2899         LB2_LINUX_TEST_RESULT([fscrypt_fname_alloc_buffer], [
2900         AC_DEFINE(HAVE_FSCRYPT_FNAME_ALLOC_BUFFER_NO_INODE, 1,
2901                 [fscrypt_fname_alloc_buffer() does not have inode parameter])
2902         ])
2903 ]) # LC_FSCRYPT_FNAME_ALLOC_BUFFER
2904
2905 #
2906 # LC_FSCRYPT_SET_CONTEXT
2907 #
2908 # Kernel 5.9-rc4 a992b20cd4ee360dbbe6f69339cb07146e4304d6
2909 # fscrypt_get_encryption_info() is not GFP_NOFS safe which
2910 # is used by fscrypt_inherit_context. Replace fscrypt_inherit_context,
2911 # with two new functions, fscrypt_prepare_new_inode() and
2912 # fscrypt_set_context()
2913 #
2914 AC_DEFUN([LC_SRC_FSCRYPT_SET_CONTEXT], [
2915         LB2_LINUX_TEST_SRC([fscrypt_set_context], [
2916                 #include <linux/fscrypt.h>
2917         ],[
2918                 fscrypt_set_context(NULL, NULL);
2919                 fscrypt_prepare_new_inode(NULL, NULL, NULL);
2920         ])
2921 ])
2922 AC_DEFUN([LC_FSCRYPT_SET_CONTEXT], [
2923         AC_MSG_CHECKING([if 'fscrypt_set_context()' exists])
2924         LB2_LINUX_TEST_RESULT([fscrypt_set_context], [
2925                 AC_DEFINE(HAVE_FSCRYPT_SET_CONTEXT, 1,
2926                         [fscrypt_set_context() does exist])
2927         ])
2928 ]) # LC_FSCRYPT_SET_CONTEXT
2929
2930 #
2931 # LC_FSCRYPT_D_REVALIDATE
2932 #
2933 # kernel 5.9-rc4 5b2a828b98ec1872799b1b4d82113c76a12d594f
2934 # exported fscrypt_d_revalidate()
2935 #
2936 AC_DEFUN([LC_FSCRYPT_D_REVALIDATE], [
2937 LB_CHECK_EXPORT([fscrypt_d_revalidate], [fs/crypto/fname.c],
2938         [AC_DEFINE(HAVE_FSCRYPT_D_REVALIDATE, 1,
2939                    [fscrypt_d_revalidate() is exported by the kernel])])
2940 ]) # LC_FSCRYPT_D_REVALIDATE
2941
2942 #
2943 # LC_FSCRYPT_NOKEY_NAME
2944 #
2945 # kernel 5.9-rc4 70fb2612aab62d47e03f82eaa7384a8d30ca175d
2946 # renamed is_ciphertext_name to is_nokey_name
2947 #
2948 AC_DEFUN([LC_SRC_FSCRYPT_NOKEY_NAME], [
2949         LB2_LINUX_TEST_SRC([fname_is_nokey_name], [
2950                 #include <linux/fscrypt.h>
2951         ],[
2952                 struct fscrypt_name fname;
2953
2954                 fname.is_nokey_name = true;
2955         ],[-Werror])
2956 ])
2957 AC_DEFUN([LC_FSCRYPT_NOKEY_NAME], [
2958         AC_MSG_CHECKING([if struct fscrypt_name has is_nokey_name field])
2959         LB2_LINUX_TEST_RESULT([fname_is_nokey_name], [
2960                 AC_DEFINE(HAVE_FSCRYPT_NOKEY_NAME, 1,
2961                         [struct fscrypt_name has is_nokey_name field])
2962         ])
2963 ]) # LC_FSCRYPT_NOKEY_NAME
2964
2965 #
2966 # LC_FSCRYPT_SET_TEST_DUMMY_ENC_CHAR_ARG
2967 # Kernel 5.9-rc4 c8c868abc91ff23f6f5c4444c419de7c277d77e1
2968 # changed fscrypt_set_test_dummy_encryption() take a 'const char *
2969 #
2970 AC_DEFUN([LC_SRC_FSCRYPT_SET_TEST_DUMMY_ENC_CHAR_ARG], [
2971         LB2_LINUX_TEST_SRC([fscrypt_set_test_dummy_encryption], [
2972                 #include <linux/fscrypt.h>
2973         ],[
2974                 char *arg = "arg";
2975                 fscrypt_set_test_dummy_encryption(NULL, arg, NULL);
2976         ],[-Werror])
2977 ])
2978 AC_DEFUN([LC_FSCRYPT_SET_TEST_DUMMY_ENC_CHAR_ARG], [
2979         AC_MSG_CHECKING([if fscrypt_set_test_dummy_encryption() take 'const char' parameter])
2980         LB2_LINUX_TEST_RESULT([fscrypt_set_test_dummy_encryption], [
2981                 AC_DEFINE(HAVE_FSCRYPT_SET_TEST_DUMMY_ENC_CHAR_ARG, 1,
2982                         [fscrypt_set_test_dummy_encryption() take 'const char' parameter])
2983         ])
2984 ]) # LC_FSCRYPT_SET_TEST_DUMMY_ENC_CHAR_ARG
2985
2986 #
2987 # LC_FSCRYPT_DUMMY_POLICY
2988 #
2989 # Kernel 5.9-rc4 ac4acb1f4b2b6b7e8d913537cccec8789903e164
2990 # move the test dummy context for fscrypt_policy which is
2991 # also used by the user land interface.
2992 #
2993 AC_DEFUN([LC_SRC_FSCRYPT_DUMMY_POLICY], [
2994         LB2_LINUX_TEST_SRC([fscrypt_free_dummy_policy], [
2995                 #include <linux/fscrypt.h>
2996         ],[
2997                 fscrypt_free_dummy_policy(NULL);
2998         ],[-Werror])
2999 ])
3000 AC_DEFUN([LC_FSCRYPT_DUMMY_POLICY], [
3001         AC_MSG_CHECKING([if fscrypt_free_dummy_policy() exists])
3002         LB2_LINUX_TEST_RESULT([fscrypt_free_dummy_policy], [
3003                 AC_DEFINE(HAVE_FSCRYPT_DUMMY_POLICY, 1,
3004                         [fscrypt_free_dummy_policy() exists])
3005         ])
3006 ]) # LC_FSCRYPT_DUMMY_POLICY
3007
3008 #
3009 # LC_HAVE_ITER_FILE_SPLICE_WRITE
3010 #
3011 # Linux commit v5.9-rc1-6-g36e2c7421f02
3012 #  fs: don't allow splice read/write without explicit ops
3013 #
3014 AC_DEFUN([LC_SRC_HAVE_ITER_FILE_SPLICE_WRITE], [
3015         LB2_LINUX_TEST_SRC([iter_file_splice_write], [
3016                 #include <linux/fs.h>
3017         ],[
3018                 (void)iter_file_splice_write(NULL, NULL, NULL, 1, 0);
3019         ],[-Werror])
3020 ])
3021 AC_DEFUN([LC_HAVE_ITER_FILE_SPLICE_WRITE], [
3022         AC_MSG_CHECKING([if iter_file_splice_write() exists])
3023         LB2_LINUX_TEST_RESULT([iter_file_splice_write], [
3024                 AC_DEFINE(HAVE_ITER_FILE_SPLICE_WRITE, 1,
3025                         ['iter_file_splice_write' exists])
3026         ])
3027 ]) # LC_HAVE_ITER_FILE_SPLICE_WRITE
3028
3029 #
3030 # LC_FSCRYPT_IS_NOKEY_NAME
3031 #
3032 # Kernel 5.10-rc4 159e1de201b6fca10bfec50405a3b53a561096a8
3033 # introduced fscrypt_is_nokey_name() inline macro. While
3034 # introduced for 5.10 kernels it was backported to earlier
3035 # Ubuntu kernels. Also it hides the change introduced due
3036 # to git commit 501e43fbe for kernel 5.9 which also was
3037 # backported to earlier Ubuntu kernels.
3038 #
3039 AC_DEFUN([LC_SRC_FSCRYPT_IS_NOKEY_NAME], [
3040         LB2_LINUX_TEST_SRC([fscrypt_is_no_key_name], [
3041                 #include <linux/fscrypt.h>
3042         ],[
3043                 fscrypt_is_nokey_name(NULL);
3044         ],[-Werror])
3045 ])
3046 AC_DEFUN([LC_FSCRYPT_IS_NOKEY_NAME], [
3047         AC_MSG_CHECKING([if fscrypt_is_no_key_name() exists])
3048         LB2_LINUX_TEST_RESULT([fscrypt_is_no_key_name], [
3049                 AC_DEFINE(HAVE_FSCRYPT_IS_NOKEY_NAME, 1,
3050                         [fscrypt_is_nokey_name() exists])
3051         ])
3052 ]) # LC_FSCRYPT_IS_NOKEY_NAME
3053
3054 #
3055 # LC_FSCRYPT_PREPARE_READDIR
3056 #
3057 # Kernel 5.10-rc4 ec0caa974cd092549ab282deb8ec7ea73b36eba0
3058 # replaced fscrypt_get_encryption_info() with
3059 # fscrypt_prepare_readdir()
3060 #
3061 AC_DEFUN([LC_SRC_FSCRYPT_PREPARE_READDIR], [
3062         LB2_LINUX_TEST_SRC([fscrypt_prepare_readdir], [
3063                 #include <linux/fscrypt.h>
3064         ],[
3065                 fscrypt_prepare_readdir(NULL);
3066         ],[-Werror])
3067 ])
3068 AC_DEFUN([LC_FSCRYPT_PREPARE_READDIR], [
3069         AC_MSG_CHECKING([if fscrypt_prepare_readdir() exists])
3070         LB2_LINUX_TEST_RESULT([fscrypt_prepare_readdir], [
3071                 AC_DEFINE(HAVE_FSCRYPT_PREPARE_READDIR, 1,
3072                         [fscrypt_prepare_readdir() exists])
3073         ])
3074 ]) # LC_FSCRYPT_PREPARE_READDIR
3075
3076 #
3077 # LC_BIO_SET_DEV
3078 #
3079 # Linux: v5.11-rc5-9-g309dca309fc3
3080 #   block: store a block_device pointer in struct bio
3081 # created bio_set_dev macro
3082 # Linux: v5.15-rc6-127-gcf6d6238cdd3
3083 #   block: turn macro helpers into inline functions
3084 # created inline function(s).
3085 #
3086 # Only provide a bio_set_dev it is is not proveded by the kernel
3087 #
3088 AC_DEFUN([LC_SRC_BIO_SET_DEV], [
3089         LB2_LINUX_TEST_SRC([bio_set_dev], [
3090                 #include <linux/bio.h>
3091         ],[
3092                 struct bio *bio = NULL;
3093                 struct block_device *bdev = NULL;
3094
3095                 bio_set_dev(bio, bdev);
3096         ],[-Werror])
3097 ])
3098 AC_DEFUN([LC_BIO_SET_DEV], [
3099         AC_MSG_CHECKING([if 'bio_set_dev' is available])
3100         LB2_LINUX_TEST_RESULT([bio_set_dev], [
3101                 AC_DEFINE(HAVE_BIO_SET_DEV, 1, ['bio_set_dev' is available])
3102         ])
3103 ]) # LC_BIO_SET_DEV
3104
3105 #
3106 # LC_HAVE_USER_NAMESPACE_ARG
3107 #
3108 # kernel 5.12 commit 549c7297717c32ee53f156cd949e055e601f67bb
3109 # fs: make helpers idmap mount aware
3110 # Extend some inode methods with an additional user namespace argument.
3111 #
3112 AC_DEFUN([LC_SRC_HAVE_USER_NAMESPACE_ARG], [
3113         LB2_LINUX_TEST_SRC([inode_ops_has_user_namespace_argument], [
3114                 #include <linux/fs.h>
3115         ],[
3116                 ((struct inode_operations *)1)->getattr((struct user_namespace *)NULL,
3117                                                         NULL, NULL, 0, 0);
3118         ],[-Werror])
3119 ])
3120 AC_DEFUN([LC_HAVE_USER_NAMESPACE_ARG], [
3121         AC_MSG_CHECKING([if 'inode_operations' members have user namespace argument])
3122         LB2_LINUX_TEST_RESULT([inode_ops_has_user_namespace_argument], [
3123                 AC_DEFINE(HAVE_USER_NAMESPACE_ARG, 1,
3124                         ['inode_operations' members have user namespace argument])
3125         ])
3126 ]) # LC_HAVE_USER_NAMESPACE_ARG
3127
3128 #
3129 # LC_HAVE_GET_ACL_RCU_ARG
3130 #
3131 # kernel 5.15 commit 0cad6246621b5887d5b33fea84219d2a71f2f99a
3132 # vfs: add rcu argument to ->get_acl() callback
3133 # Add a rcu argument to the ->get_acl() callback to allow
3134 # get_cached_acl_rcu() to call the ->get_acl() method.
3135 #
3136 AC_DEFUN([LC_SRC_HAVE_GET_ACL_RCU_ARG], [
3137         LB2_LINUX_TEST_SRC([get_acl_rcu_argument], [
3138                 #include <linux/fs.h>
3139         ],[
3140                 ((struct inode_operations *)1)->get_acl((struct inode *)NULL, 0, false);
3141         ],[-Werror])
3142 ])
3143 AC_DEFUN([LC_HAVE_GET_ACL_RCU_ARG], [
3144         AC_MSG_CHECKING([if 'get_acl' has a rcu argument])
3145         LB2_LINUX_TEST_RESULT([get_acl_rcu_argument], [
3146                 AC_DEFINE(HAVE_GET_ACL_RCU_ARG, 1,
3147                         ['get_acl' has a rcu argument])
3148         ])
3149 ]) # LC_HAVE_GET_ACL_RCU_ARG
3150
3151 #
3152 # LC_HAVE_SECURITY_DENTRY_INIT_WITH_XATTR_NAME_ARG
3153 #
3154 # Linux v5.15-rc1-20-g15bf32398ad4
3155 # security: Return xattr name from security_dentry_init_security()
3156 #
3157 AC_DEFUN([LC_SRC_HAVE_SECURITY_DENTRY_INIT_WITH_XATTR_NAME_ARG], [
3158         LB2_LINUX_TEST_SRC([security_dentry_init_security_xattr_name_arg], [
3159                 #include <linux/security.h>
3160         ],[
3161                 struct dentry *dentry = NULL;
3162                 int mode = 0;
3163                 const struct qstr *name = NULL;
3164                 const char *xattr_name = NULL;
3165                 void **ctx = NULL;
3166                 u32 *ctxlen = 0;
3167                 int rc = security_dentry_init_security(dentry, mode, name, &xattr_name,
3168                                                        ctx, ctxlen);
3169                 (void)rc;
3170
3171         ],[-Werror])
3172 ])
3173 AC_DEFUN([LC_HAVE_SECURITY_DENTRY_INIT_WITH_XATTR_NAME_ARG], [
3174         AC_MSG_CHECKING([if security_dentry_init_security() returns xattr name])
3175         LB2_LINUX_TEST_RESULT([security_dentry_init_security_xattr_name_arg], [
3176                 AC_DEFINE(HAVE_SECURITY_DENTRY_INIT_WITH_XATTR_NAME_ARG, 1,
3177                         [security_dentry_init_security() returns xattr name])
3178         ])
3179 ]) # LC_HAVE_SECURITY_DENTRY_INIT_WITH_XATTR_NAME_ARG
3180
3181 #
3182 # LC_HAVE_KIOCB_COMPLETE_2ARGS
3183 #
3184 # kernel v5.15-rc6-145-g6b19b766e8f0
3185 # fs: get rid of the res2 iocb->ki_complete argument
3186 #
3187 AC_DEFUN([LC_SRC_HAVE_KIOCB_COMPLETE_2ARGS], [
3188         LB2_LINUX_TEST_SRC([kiocb_ki_complete_2args], [
3189                 #include <linux/fs.h>
3190
3191                 static void complete_fn(struct kiocb *iocb, long ret)
3192                 {
3193                         (void)iocb;
3194                         (void)ret;
3195                 }
3196         ],[
3197                 struct kiocb *kio = NULL;
3198
3199                 kio->ki_complete = complete_fn;
3200         ],[-Werror])
3201 ])
3202 AC_DEFUN([LC_HAVE_KIOCB_COMPLETE_2ARGS], [
3203         AC_MSG_CHECKING([if kiocb->ki_complete() has 2 arguments])
3204         LB2_LINUX_TEST_RESULT([kiocb_ki_complete_2args], [
3205                 AC_DEFINE(HAVE_KIOCB_COMPLETE_2ARGS, 1,
3206                         [kiocb->ki_complete() has 2 arguments])
3207         ])
3208 ]) # LC_HAVE_KIOCB_COMPLETE_2ARGS
3209
3210 #
3211 # LC_EXPORTS_DELETE_FROM_PAGE_CACHE
3212 #
3213 # Linux commit v5.16-rc4-44-g452e9e6992fe
3214 # filemap: Add filemap_remove_folio and __filemap_remove_folio
3215 #
3216 # Also removes the export of delete_from_page_cache
3217 #
3218 AC_DEFUN([LC_EXPORTS_DELETE_FROM_PAGE_CACHE], [
3219 LB_CHECK_EXPORT([delete_from_page_cache], [mm/filemap.c],
3220         [AC_DEFINE(HAVE_DELETE_FROM_PAGE_CACHE, 1,
3221                         [delete_from_page_cache is exported])])
3222 ]) # LC_EXPORTS_DELETE_FROM_PAGE_CACHE
3223
3224 #
3225 # LC_HAVE_INVALIDATE_FOLIO
3226 #
3227 # linux commit v5.17-rc4-10-g128d1f8241d6
3228 # fs: Add invalidate_folio() aops method
3229 #
3230 AC_DEFUN([LC_SRC_HAVE_INVALIDATE_FOLIO], [
3231         LB2_LINUX_TEST_SRC([address_spaace_operaions_invalidate_folio], [
3232                 #include <linux/fs.h>
3233         ],[
3234                 struct address_space_operations *aops = NULL;
3235                 struct folio *folio = NULL;
3236                 aops->invalidate_folio(folio, 0, PAGE_SIZE);
3237
3238         ],[-Werror])
3239 ])
3240 AC_DEFUN([LC_HAVE_INVALIDATE_FOLIO], [
3241         AC_MSG_CHECKING([if have address_spaace_operaions->invalidate_folio() member])
3242         LB2_LINUX_TEST_RESULT([address_spaace_operaions_invalidate_folio], [
3243                 AC_DEFINE(HAVE_INVALIDATE_FOLIO, 1,
3244                         [address_spaace_operaions->invalidate_folio() member exists])
3245         ])
3246 ]) # LC_HAVE_INVALIDATE_FOLIO
3247
3248 #
3249 # LC_HAVE_DIRTY_FOLIO
3250 #
3251 # linux commit v5.17-rc4-38-g6f31a5a261db
3252 # fs: Add aops->dirty_folio
3253 # ... replaces ->set_page_dirty() with ->dirty_folio()
3254 #
3255 AC_DEFUN([LC_SRC_HAVE_DIRTY_FOLIO], [
3256         LB2_LINUX_TEST_SRC([address_spaace_operaions_dirty_folio], [
3257                 #include <linux/fs.h>
3258         ],[
3259                 struct address_space_operations *aops = NULL;
3260                 struct address_space *mapping = NULL;
3261                 struct folio *folio = NULL;
3262                 bool dirty = aops->dirty_folio(mapping, folio);
3263                 (void) dirty;
3264         ],[-Werror])
3265 ])
3266 AC_DEFUN([LC_HAVE_DIRTY_FOLIO], [
3267         AC_MSG_CHECKING([if have address_spaace_operaions->dirty_folio() member])
3268         LB2_LINUX_TEST_RESULT([address_spaace_operaions_dirty_folio], [
3269                 AC_DEFINE(HAVE_DIRTY_FOLIO, 1,
3270                         [address_spaace_operaions->dirty_folio() member exists])
3271         ])
3272 ]) # LC_HAVE_DIRTY_FOLIO
3273
3274 #
3275 # LC_HAVE_ALLOC_INODE_SB
3276 #
3277 # linux commit v5.17-49-g8b9f3ac5b01d
3278 #   fs: introduce alloc_inode_sb() to allocate filesystems specific inode
3279 #
3280 AC_DEFUN([LC_SRC_HAVE_ALLOC_INODE_SB], [
3281         LB2_LINUX_TEST_SRC([alloc_inode_sb], [
3282                 #include <linux/fs.h>
3283         ],[
3284                 struct super_block *sb = NULL;
3285                 struct kmem_cache *cache = NULL;
3286
3287                 (void)alloc_inode_sb(sb, cache, GFP_NOFS);
3288         ],[-Werror])
3289 ])
3290 AC_DEFUN([LC_HAVE_ALLOC_INODE_SB], [
3291         AC_MSG_CHECKING([if alloc_inode_sb() exists])
3292         LB2_LINUX_TEST_RESULT([alloc_inode_sb], [
3293                 AC_DEFINE(HAVE_ALLOC_INODE_SB, 1,
3294                         [alloc_inode_sb() exists])
3295         ])
3296 ]) # LC_HAVE_ALLOC_INODE_SB
3297
3298 #
3299 # LC_GRAB_CACHE_PAGE_WRITE_BEGIN_WITH_FLAGS
3300 #
3301 # Linux commit v5.18-rc5-221-gb7446e7cf15f
3302 #   fs: Remove aop flags parameter from grab_cache_page_write_begin()
3303 #
3304 AC_DEFUN([LC_SRC_GRAB_CACHE_PAGE_WRITE_BEGIN_WITH_FLAGS], [
3305         LB2_LINUX_TEST_SRC([grab_cache_page_write_begin_with_flags], [
3306                 #include <linux/pagemap.h>
3307         ],[
3308                 struct address_space *mapping = NULL;
3309                 (void)grab_cache_page_write_begin(mapping, 0, 1);
3310         ],[-Werror])
3311 ])
3312 AC_DEFUN([LC_GRAB_CACHE_PAGE_WRITE_BEGIN_WITH_FLAGS], [
3313         AC_MSG_CHECKING([if grab_cache_page_write_begin() has flags argument])
3314         LB2_LINUX_TEST_RESULT([grab_cache_page_write_begin_with_flags], [
3315                 AC_DEFINE(HAVE_GRAB_CACHE_PAGE_WRITE_BEGIN_WITH_FLAGS, 1,
3316                         [grab_cache_page_write_begin() has flags argument])
3317         ])
3318 ]) # LC_GRAB_CACHE_PAGE_WRITE_BEGIN_WITH_FLAGS
3319
3320 #
3321 # LC_HAVE_ADDRESS_SPACE_OPERATIONS_READ_FOLIO
3322 #
3323 # Linux commit v5.18-rc5-241-g5efe7448a142
3324 #   fs: Introduce aops->read_folio
3325 #
3326 AC_DEFUN([LC_SRC_HAVE_ADDRESS_SPACE_OPERATIONS_READ_FOLIO], [
3327         LB2_LINUX_TEST_SRC([address_space_operations_read_folio], [
3328                 #include <linux/fs.h>
3329         ],[
3330                 struct address_space_operations *aops = NULL;
3331                 struct file *file = NULL;
3332                 struct folio *folio = NULL;
3333                 int err = aops->read_folio(file, folio);
3334                 (void)err;
3335         ],[-Werror])
3336 ])
3337 AC_DEFUN([LC_HAVE_ADDRESS_SPACE_OPERATIONS_READ_FOLIO], [
3338         AC_MSG_CHECKING([if struct address_space_operations() has read_folio()])
3339         LB2_LINUX_TEST_RESULT([address_space_operations_read_folio], [
3340                 AC_DEFINE(HAVE_AOPS_READ_FOLIO, 1,
3341                         [struct address_space_operations() has read_folio()])
3342         ])
3343 ]) # LC_HAVE_ADDRESS_SPACE_OPERATIONS_READ_FOLIO
3344
3345 #
3346 # LC_HAVE_READ_CACHE_PAGE_FILLER_WITH_FILE
3347 #
3348 # Linux commit v5.18-rc5-280-ge9b5b23e957e
3349 #   fs: Change the type of filler_t
3350 #
3351 AC_DEFUN([LC_SRC_HAVE_READ_CACHE_PAGE_FILLER_WITH_FILE], [
3352         LB2_LINUX_TEST_SRC([read_cache_page_filler_with_file], [
3353                 #include <linux/pagemap.h>
3354                 static inline int _filler(struct file *file, struct folio *f)
3355                 {
3356                         return 0;
3357                 }
3358         ],[
3359                 struct address_space *mapping = NULL;
3360                 struct file *file = NULL;
3361                 struct page *page = read_cache_page(mapping, 0, _filler, file);
3362                 (void)page;
3363         ],[-Werror])
3364 ])
3365 AC_DEFUN([LC_HAVE_READ_CACHE_PAGE_FILLER_WITH_FILE], [
3366         AC_MSG_CHECKING([if read_cache_page() filler_t needs struct file])
3367         LB2_LINUX_TEST_RESULT([read_cache_page_filler_with_file], [
3368                 AC_DEFINE(HAVE_READ_CACHE_PAGE_WANTS_FILE, 1,
3369                         [read_cache_page() filler_t needs struct file])
3370         ])
3371 ]) # LC_HAVE_READ_CACHE_PAGE_FILLER_WITH_FILE
3372
3373 #
3374 # LC_HAVE_ADDRESS_SPACE_OPERATIONS_RELEASE_FOLIO
3375 #
3376 # Linux commit v5.18-rc5-282-gfa29000b6b26
3377 #  fs: Add aops->release_folio
3378 #
3379 AC_DEFUN([LC_SRC_HAVE_ADDRESS_SPACE_OPERATIONS_RELEASE_FOLIO], [
3380         LB2_LINUX_TEST_SRC([address_space_operations_release_folio], [
3381                 #include <linux/fs.h>
3382         ],[
3383                 struct address_space_operations *aops = NULL;
3384                 struct folio *folio = NULL;
3385                 int err = aops->release_folio(folio, GFP_KERNEL);
3386                 (void)err;
3387         ],[-Werror])
3388 ])
3389 AC_DEFUN([LC_HAVE_ADDRESS_SPACE_OPERATIONS_RELEASE_FOLIO], [
3390         AC_MSG_CHECKING([if struct address_space_operations() has release_folio()])
3391         LB2_LINUX_TEST_RESULT([address_space_operations_release_folio], [
3392                 AC_DEFINE(HAVE_AOPS_RELEASE_FOLIO, 1,
3393                         [struct address_space_operations() has release_folio()])
3394         ])
3395 ]) # LC_HAVE_ADDRESS_SPACE_OPERATIONS_RELEASE_FOLIO
3396
3397 #
3398 # LC_HAVE_NO_LLSEEK
3399 #
3400 # Linux commit v5.19-rc2-6-g868941b14441
3401 #   fs: remove no_llseek
3402 #
3403 AC_DEFUN([LC_SRC_HAVE_NO_LLSEEK], [
3404         LB2_LINUX_TEST_SRC([no_llseek], [
3405                 #include <linux/fs.h>
3406         ],[
3407                 static const struct file_operations fops = {
3408                         .llseek = &no_llseek,
3409                 };
3410                 (void)fops;
3411         ],[-Werror])
3412 ])
3413 AC_DEFUN([LC_HAVE_NO_LLSEEK], [
3414         AC_MSG_CHECKING([if no_llseek() is available])
3415         LB2_LINUX_TEST_RESULT([no_llseek], [
3416                 AC_DEFINE(HAVE_NO_LLSEEK, 1, [no_llseek() is available])
3417         ])
3418 ]) # LC_HAVE_NO_LLSEEK
3419
3420 #
3421 # LC_DQUOT_TRANSFER_WITH_USER_NS
3422 #
3423 # Linux commit v5.19-rc3-6-g71e7b535b890
3424 #  quota: port quota helpers mount ids
3425 #
3426 AC_DEFUN([LC_SRC_DQUOT_TRANSFER_WITH_USER_NS], [
3427         LB2_LINUX_TEST_SRC([dquot_transfer], [
3428                 #include <linux/quotaops.h>
3429         ],[
3430                 struct user_namespace *userns = NULL;
3431                 struct inode *inode = NULL;
3432                 struct iattr *iattr = NULL;
3433                 int err __attribute__ ((unused));
3434
3435                 err = dquot_transfer(userns, inode, iattr);
3436         ],[-Werror])
3437 ])
3438 AC_DEFUN([LC_DQUOT_TRANSFER_WITH_USER_NS], [
3439         AC_MSG_CHECKING([if dquot_transfer() has user_ns argument])
3440         LB2_LINUX_TEST_RESULT([dquot_transfer], [
3441                 AC_DEFINE(HAVE_DQUOT_TRANSFER_WITH_USER_NS, 1,
3442                         [dquot_transfer() has user_ns argument])
3443         ])
3444 ]) # LC_DQUOT_TRANSFER_WITH_USER_NS
3445
3446 #
3447 # LC_HAVE_ADDRESS_SPACE_OPERATIONS_MIGRATE_FOLIO
3448 #
3449 # Linux commit v5.19-rc3-392-g5490da4f06d1
3450 #  fs: Add aops->migrate_folio
3451 #
3452 AC_DEFUN([LC_SRC_HAVE_ADDRESS_SPACE_OPERATIONS_MIGRATE_FOLIO], [
3453         LB2_LINUX_TEST_SRC([address_space_operations_migrate_folio], [
3454                 #include <linux/fs.h>
3455         ],[
3456                 struct address_space_operations *aops = NULL;
3457                 struct address_space *m = NULL;
3458                 struct folio *src = NULL;
3459                 struct folio *dst = NULL;
3460                 int err = aops->migrate_folio(m, dst, src, MIGRATE_ASYNC);
3461                 (void)err;
3462         ],[-Werror])
3463 ])
3464 AC_DEFUN([LC_HAVE_ADDRESS_SPACE_OPERATIONS_MIGRATE_FOLIO], [
3465         AC_MSG_CHECKING([if struct address_space_operations() has migrate_folio()])
3466         LB2_LINUX_TEST_RESULT([address_space_operations_migrate_folio], [
3467                 AC_DEFINE(HAVE_AOPS_MIGRATE_FOLIO, 1,
3468                         [struct address_space_operations() has migrate_folio()])
3469         ])
3470 ]) # LC_HAVE_ADDRESS_SPACE_OPERATIONS_MIGRATE_FOLIO
3471
3472 #
3473 # LC_REGISTER_SHRINKER_FORMAT_NAMED
3474 #
3475 # Linux commit v5.19-rc4-52-ge33c267ab70d
3476 #   mm: shrinkers: provide shrinkers with names
3477 #
3478 AC_DEFUN([LC_SRC_REGISTER_SHRINKER_FORMAT_NAMED], [
3479         LB2_LINUX_TEST_SRC([register_shrinker_format], [
3480                 #include <linux/mm.h>
3481         ],[
3482                 if (register_shrinker(NULL, "lustre-%ps", __func__))
3483                         unregister_shrinker(NULL);
3484         ],[-Werror])
3485 ])
3486 AC_DEFUN([LC_REGISTER_SHRINKER_FORMAT_NAMED], [
3487         AC_MSG_CHECKING([if register_shrinker() returns status])
3488         LB2_LINUX_TEST_RESULT([address_space_operations_migrate_folio], [
3489                 AC_DEFINE(HAVE_REGISTER_SHRINKER_FORMAT_NAMED, 1,
3490                         [register_shrinker() returns status])
3491         ])
3492 ]) # LC_REGISTER_SHRINKER_FORMAT_NAMED
3493
3494 #
3495 # LC_HAVE_VFS_SETXATTR_NON_CONST_VALUE
3496 #
3497 # From Linux commit v5.19-rc5-17-g0c5fd887d2bb
3498 #   acl: move idmapped mount fixup into vfs_{g,s}etxattr()
3499 # Until Linux commit v6.0-rc3-6-g6344e66970c6
3500 #   xattr: constify value argument in vfs_setxattr()
3501 #
3502 AC_DEFUN([LC_SRC_HAVE_VFS_SETXATTR_NON_CONST_VALUE], [
3503         LB2_LINUX_TEST_SRC([vfs_setxattr_non_const_value_arg], [
3504                 #include <linux/xattr.h>
3505         ],[
3506                 struct dentry *de = NULL;
3507                 const char *name = "an.xattr";
3508                 const void *value = NULL;
3509                 int err = vfs_setxattr(&init_user_ns, de, name, value, 0, 0);
3510                 (void)err;
3511         ],[-Werror])
3512 ]) # LC_HAVE_VFS_SETXATTR_NON_CONST_VALUE
3513 AC_DEFUN([LC_HAVE_VFS_SETXATTR_NON_CONST_VALUE], [
3514         AC_MSG_CHECKING([if vfs_setxattr() value argument is non-const])
3515         LB2_LINUX_TEST_RESULT([vfs_setxattr_non_const_value_arg], [
3516                 AC_DEFINE([VFS_SETXATTR_VALUE(value)],
3517                           [(value)],
3518                           [vfs_setxattr() value argument is const void *])
3519         ],[
3520                 AC_DEFINE([VFS_SETXATTR_VALUE(value)],
3521                           [((void *)(value))],
3522                           [vfs_setxattr() value argument is non-const])
3523         ])
3524 ]) # LC_HAVE_VFS_SETXATTR_NON_CONST_VALUE
3525
3526 #
3527 # LC_HAVE_IOV_ITER_GET_PAGES_ALLOC2
3528 #
3529 # Linux commit v5.19-10313-geba2d3d79829
3530 #   get rid of non-advancing variants
3531 #
3532 AC_DEFUN([LC_SRC_HAVE_IOV_ITER_GET_PAGES_ALLOC2], [
3533         LB2_LINUX_TEST_SRC([iov_iter_get_pages_alloc2], [
3534                 #include <linux/uio.h>
3535         ],[
3536                 struct iov_iter *iter = NULL;
3537                 struct page ***pages = NULL;
3538                 size_t maxsize = 1;
3539                 size_t start;
3540                 size_t result __attribute__ ((unused));
3541                 result = iov_iter_get_pages_alloc2(iter, pages, maxsize, &start);
3542         ],[-Werror])
3543 ])
3544 AC_DEFUN([LC_HAVE_IOV_ITER_GET_PAGES_ALLOC2], [
3545         AC_MSG_CHECKING([if iov_iter_get_pages_alloc2() is available])
3546         LB2_LINUX_TEST_RESULT([iov_iter_get_pages_alloc2], [
3547                 AC_DEFINE(HAVE_IOV_ITER_GET_PAGES_ALLOC2, 1,
3548                         [iov_iter_get_pages_alloc2() is available])
3549         ])
3550 ]) # LC_HAVE_IOV_ITER_GET_PAGES_ALLOC2
3551
3552 #
3553 # LC_HAVE_GET_RANDOM_U32_AND_U64
3554 #
3555 # Linux commit v4.10-rc3-6-gc440408cf690
3556 #   random: convert get_random_int/long into get_random_u32/u64
3557 # Linux commit v6.0-11338-gde492c83cae0
3558 #   prandom: remove unused functions
3559 #
3560 AC_DEFUN([LC_SRC_HAVE_GET_RANDOM_U32_AND_U64], [
3561         LB2_LINUX_TEST_SRC([get_random_u32_and_u64], [
3562                 #include <linux/random.h>
3563         ],[
3564                 u32 rand32 = get_random_u32();
3565                 u64 rand64 = get_random_u64();
3566                 (void)rand32;
3567                 (void)rand64;
3568         ],[-Werror])
3569 ])
3570 AC_DEFUN([LC_HAVE_GET_RANDOM_U32_AND_U64], [
3571         AC_MSG_CHECKING([if get_random_u32() and get_random_u64() are available])
3572         LB2_LINUX_TEST_RESULT([get_random_u32_and_u64], [
3573                 AC_DEFINE(HAVE_GET_RANDOM_U32_AND_U64, 1,
3574                         [get_random_[u32|u64] are available])
3575         ],[
3576                 AC_DEFINE([get_random_u32()], [prandom_u32()],
3577                         [get_random_u32() is not available, use prandom_u32])
3578         ])
3579 ]) # LC_HAVE_GET_RANDOM_U32_AND_U64
3580
3581 #
3582 # LC_NFS_FILLDIR_USE_CTX_RETURN_BOOL
3583 #
3584 # Linux commit v6.0-rc1-2-g25885a35a720
3585 #  Change calling conventions for filldir_t
3586 #
3587 AC_DEFUN([LC_SRC_NFS_FILLDIR_USE_CTX_RETURN_BOOL], [
3588         LB2_LINUX_TEST_SRC([filldir_ctx_return_bool], [
3589                 #include <linux/fs.h>
3590         ],[
3591                 bool filldir(struct dir_context *ctx, const char* name,
3592                              int i, loff_t off, u64 tmp, unsigned temp)
3593                 {
3594                         return 0;
3595                 }
3596
3597                 struct dir_context ctx = {
3598                         .actor = filldir,
3599                 };
3600
3601                 ctx.actor(NULL, "test", 0, (loff_t) 0, 0, 0);
3602         ],[-Werror])
3603 ])
3604 AC_DEFUN([LC_NFS_FILLDIR_USE_CTX_RETURN_BOOL], [
3605         AC_MSG_CHECKING([if filldir_t uses struct dir_context and returns bool])
3606         LB2_LINUX_TEST_RESULT([filldir_ctx_return_bool], [
3607                 AC_DEFINE(HAVE_FILLDIR_USE_CTX_RETURN_BOOL, 1,
3608                         [filldir_t needs struct dir_context and returns bool])
3609                 AC_DEFINE(HAVE_FILLDIR_USE_CTX, 1,
3610                         [filldir_t needs struct dir_context as argument])
3611                 AC_DEFINE(FILLDIR_TYPE, bool,
3612                         [filldir_t return type is bool or int])
3613         ],[
3614                 AC_DEFINE(FILLDIR_TYPE, int,
3615                         [filldir_t return type is bool or int])
3616         ])
3617 ]) # LC_NFS_FILLDIR_USE_CTX_RETURN_BOOL
3618
3619 #
3620 # LC_HAVE_FILEMAP_GET_FOLIOS_CONTIG
3621 #
3622 # Linux commit v6.0-rc3-94-g35b471467f88
3623 #   filemap: add filemap_get_folios_contig()
3624 #
3625 AC_DEFUN([LC_SRC_HAVE_FILEMAP_GET_FOLIOS_CONTIG], [
3626         LB2_LINUX_TEST_SRC([filemap_get_folios_contig], [
3627                 #include <linux/pagemap.h>
3628         ],[
3629                 struct address_space *m = NULL;
3630                 pgoff_t start = 0;
3631                 struct folio_batch *fbatch = NULL;
3632                 (void)filemap_get_folios_contig(m, &start, ULONG_MAX, fbatch);
3633         ],[-Werror])
3634 ])
3635 AC_DEFUN([LC_HAVE_FILEMAP_GET_FOLIOS_CONTIG], [
3636         AC_MSG_CHECKING([if filemap_get_folios_contig() is available])
3637         LB2_LINUX_TEST_RESULT([filldir_ctx_return_bool], [
3638                 AC_DEFINE(HAVE_FILEMAP_GET_FOLIOS_CONTIG, 1,
3639                         [filemap_get_folios_contig() is available])
3640         ])
3641 ]) # LC_HAVE_FILEMAP_GET_FOLIOS_CONTIG
3642
3643 #
3644 # LC_PROG_LINUX
3645 #
3646 # Lustre linux kernel checks
3647 #
3648 AC_DEFUN([LC_PROG_LINUX_SRC], [
3649         AS_IF([test "x$enable_gss" != xno], [
3650                 LC_SRC_KEY_TYPE_INSTANTIATE_2ARGS
3651                 LB2_SRC_CHECK_CONFIG_IM([CRYPTO_MD5])
3652                 LB2_SRC_CHECK_CONFIG_IM([CRYPTO_SHA1])
3653                 LB2_SRC_CHECK_CONFIG_IM([CRYPTO_SHA256])
3654                 LB2_SRC_CHECK_CONFIG_IM([CRYPTO_SHA512])
3655         ])
3656         AS_IF([test "x$enable_server" != xno], [
3657                 LC_SRC_CONFIG_QUOTA
3658                 LC_SRC_STACK_SIZE
3659         ])
3660         LC_SRC_CONFIG_FHANDLE
3661         LC_SRC_POSIX_ACL_CONFIG
3662         LC_SRC_HAVE_PROJECT_QUOTA
3663
3664         # 3.11
3665         LC_SRC_INVALIDATE_RANGE
3666         LC_SRC_HAVE_DIR_CONTEXT
3667         LC_SRC_D_COMPARE_5ARGS
3668         LC_SRC_HAVE_DCOUNT
3669         LC_SRC_PID_NS_FOR_CHILDREN
3670
3671         # 3.12
3672         LC_SRC_OLDSIZE_TRUNCATE_PAGECACHE
3673         LC_SRC_PTR_ERR_OR_ZERO_MISSING
3674         LC_SRC_HAVE_DENTRY_D_U_D_ALIAS_LIST
3675         LC_SRC_HAVE_DENTRY_D_U_D_ALIAS_HLIST
3676         LC_SRC_HAVE_DENTRY_D_CHILD
3677         LC_SRC_KIOCB_KI_LEFT
3678         LC_SRC_REGISTER_SHRINKER_RET
3679
3680         # 3.13
3681         LC_SRC_VFS_RENAME_5ARGS
3682         LC_SRC_VFS_UNLINK_3ARGS
3683         LC_SRC_HAVE_D_IS_POSITIVE
3684
3685         # 3.14
3686         LC_SRC_HAVE_BVEC_ITER
3687         LC_SRC_HAVE_TRUNCATE_IPAGES_FINAL
3688         LC_SRC_IOPS_RENAME_WITH_FLAGS
3689         LC_SRC_IOP_SET_ACL
3690
3691         # 3.15
3692         LC_SRC_VFS_RENAME_6ARGS
3693
3694         # 3.16
3695         LC_SRC_DIRECTIO_USE_ITER
3696         LC_SRC_HAVE_IOV_ITER_INIT_DIRECTION
3697         LC_SRC_HAVE_IOV_ITER_TRUNCATE
3698         LC_SRC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
3699
3700         # 3.17
3701         LC_SRC_HAVE_INTERVAL_BLK_INTEGRITY
3702         LC_SRC_KEY_MATCH_DATA
3703         LC_SRC_HAVE_BLK_INTEGRITY_ITER
3704
3705         # 3.18
3706         LC_SRC_NFS_FILLDIR_USE_CTX
3707         LC_SRC_PERCPU_COUNTER_INIT
3708
3709         # 3.19
3710         LC_SRC_KIOCB_HAS_NBYTES
3711         LC_SRC_HAVE_DQUOT_QC_DQBLK
3712         LC_SRC_HAVE_AIO_COMPLETE
3713         LC_SRC_HAVE_IS_ROOT_INODE
3714
3715         # 3.20
3716         LC_SRC_BACKING_DEV_INFO_REMOVAL
3717         LC_SRC_HAVE_BDI_CAP_MAP_COPY
3718
3719         # 4.1.0
3720         LC_SRC_IOV_ITER_RW
3721         LC_SRC_HAVE___BI_CNT
3722
3723         # 4.2
3724         LC_SRC_BIO_ENDIO_USES_ONE_ARG
3725         LC_SRC_SYMLINK_OPS_USE_NAMEIDATA
3726         LC_SRC_ACCOUNT_PAGE_DIRTIED_3ARGS
3727         LC_SRC_HAVE_CRYPTO_ALLOC_SKCIPHER
3728
3729         # 4.3
3730         LC_SRC_HAVE_INTERVAL_EXP_BLK_INTEGRITY
3731         LC_SRC_HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD
3732         LC_SRC_HAVE_CACHE_HEAD_HLIST
3733         LC_SRC_HAVE_XATTR_HANDLER_SIMPLIFIED
3734
3735         # 4.4
3736         LC_SRC_HAVE_LOCKS_LOCK_FILE_WAIT
3737         LC_SRC_HAVE_KEY_PAYLOAD_DATA_ARRAY
3738         LC_SRC_HAVE_XATTR_HANDLER_NAME
3739         LC_SRC_BIO_INTEGRITY_PREP_FN_RETURNS_BOOL
3740         LC_SRC_HAVE_BI_OPF
3741         LC_SRC_HAVE_SUBMIT_BIO_2ARGS
3742         LC_SRC_HAVE_CLEAN_BDEV_ALIASES
3743
3744         # 4.5
3745         LC_SRC_HAVE_FILE_DENTRY
3746
3747         # 4.6
3748         LC_SRC_HAVE_INODE_LOCK
3749         LC_SRC_HAVE_IOP_GET_LINK
3750         LC_SRC_HAVE_IN_COMPAT_SYSCALL
3751         LC_SRC_HAVE_XATTR_HANDLER_INODE_PARAM
3752         LC_SRC_LOCK_PAGE_MEMCG
3753         LC_SRC_HAVE_DOWN_WRITE_KILLABLE
3754
3755         # 4.7
3756         LC_SRC_D_IN_LOOKUP
3757         LC_SRC_D_INIT
3758         LC_SRC_DIRECTIO_2ARGS
3759         LC_SRC_GENERIC_WRITE_SYNC_2ARGS
3760         LC_SRC_FOP_ITERATE_SHARED
3761
3762         # 4.8
3763         LC_SRC_HAVE_POSIX_ACL_VALID_USER_NS
3764         LC_SRC_D_COMPARE_4ARGS
3765         LC_SRC_FULL_NAME_HASH_3ARGS
3766         LC_SRC_STRUCT_POSIX_ACL_XATTR
3767         LC_SRC_IOP_XATTR
3768
3769         # 4.9
3770         LC_SRC_GROUP_INFO_GID
3771         LC_SRC_VFS_SETXATTR
3772         LC_SRC_POSIX_ACL_UPDATE_MODE
3773         LC_SRC_HAVE_BDI_IO_PAGES
3774
3775         # 4.10
3776         LC_SRC_IOP_GENERIC_READLINK
3777         LC_SRC_HAVE_VM_FAULT_ADDRESS
3778
3779         # 4.11
3780         LC_SRC_INODEOPS_ENHANCED_GETATTR
3781         LC_SRC_VM_OPERATIONS_REMOVE_VMF_ARG
3782         LC_SRC_HAVE_KEY_USAGE_REFCOUNT
3783         LC_SRC_HAVE_CRYPTO_MAX_ALG_NAME_128
3784
3785         # 4.12
3786         LC_SRC_CURRENT_TIME
3787         LC_SRC_SUPER_SETUP_BDI_NAME
3788         LC_SRC_BI_STATUS
3789
3790         # 4.13
3791         LC_SRC_BIO_INTEGRITY_ENABLED
3792         LC_SRC_HAVE_GET_INODE_USAGE
3793
3794         # 4.14
3795         LC_SRC_PAGEVEC_INIT_ONE_PARAM
3796         LC_SRC_BI_BDEV
3797         LC_SRC_INTERVAL_TREE_CACHED
3798
3799         # 4.17
3800         LC_SRC_VM_FAULT_T
3801         LC_SRC_VM_FAULT_RETRY
3802         LC_SRC_I_PAGES
3803
3804         # 4.18
3805         LC_SRC_INODE_TIMESPEC64
3806         LC_SRC_ALLOC_FILE_PSEUDO
3807
3808         # 4.20
3809         LC_SRC_RADIX_TREE_TAG_SET
3810         LC_SRC_UAPI_LINUX_MOUNT_H
3811         LC_SRC_HAVE_SUNRPC_CACHE_HASH_LOCK_IS_A_SPINLOCK
3812
3813         # 5.0
3814         LC_SRC_GENL_FAMILY_HAS_RESV_START_OP
3815
3816         # 5.1
3817         LC_SRC_HAVE_BVEC_ITER_ALL
3818
3819         # 5.2
3820         LC_SRC_KEYRING_SEARCH_4ARGS
3821
3822         # 5.3
3823         LC_SRC_BIO_BI_PHYS_SEGMENTS
3824         LC_SRC_LM_COMPARE_OWNER_EXISTS
3825
3826         # 5.5
3827         LC_SRC_FSCRYPT_DIGESTED_NAME
3828
3829         # 5.7
3830         LC_SRC_FSCRYPT_DUMMY_CONTEXT_ENABLED
3831
3832         # 5.9
3833         LC_SRC_FSCRYPT_FNAME_ALLOC_BUFFER
3834         LC_SRC_FSCRYPT_SET_CONTEXT
3835         LC_SRC_FSCRYPT_NOKEY_NAME
3836         LC_SRC_FSCRYPT_SET_TEST_DUMMY_ENC_CHAR_ARG
3837         LC_SRC_FSCRYPT_DUMMY_POLICY
3838         LC_SRC_HAVE_ITER_FILE_SPLICE_WRITE
3839
3840         # 5.10
3841         LC_SRC_FSCRYPT_IS_NOKEY_NAME
3842         LC_SRC_FSCRYPT_PREPARE_READDIR
3843
3844         # 5.11
3845         LC_SRC_BIO_SET_DEV
3846
3847         # 5.12
3848         LC_SRC_HAVE_USER_NAMESPACE_ARG
3849
3850         # 5.15
3851         LC_SRC_HAVE_GET_ACL_RCU_ARG
3852
3853         # 5.16
3854         LC_SRC_HAVE_SECURITY_DENTRY_INIT_WITH_XATTR_NAME_ARG
3855         LC_SRC_HAVE_KIOCB_COMPLETE_2ARGS
3856
3857         # 5.17
3858         LC_SRC_HAVE_INVALIDATE_FOLIO
3859         LC_SRC_HAVE_DIRTY_FOLIO
3860
3861         # 5.18
3862         LC_SRC_HAVE_ALLOC_INODE_SB
3863
3864         # 5.19
3865         LC_SRC_GRAB_CACHE_PAGE_WRITE_BEGIN_WITH_FLAGS
3866         LC_SRC_HAVE_ADDRESS_SPACE_OPERATIONS_READ_FOLIO
3867         LC_SRC_HAVE_READ_CACHE_PAGE_FILLER_WITH_FILE
3868         LC_SRC_HAVE_ADDRESS_SPACE_OPERATIONS_RELEASE_FOLIO
3869
3870         # 6.0
3871         LC_SRC_HAVE_NO_LLSEEK
3872         LC_SRC_DQUOT_TRANSFER_WITH_USER_NS
3873         LC_SRC_HAVE_ADDRESS_SPACE_OPERATIONS_MIGRATE_FOLIO
3874         LC_SRC_REGISTER_SHRINKER_FORMAT_NAMED
3875         LC_SRC_HAVE_VFS_SETXATTR_NON_CONST_VALUE
3876         LC_SRC_HAVE_IOV_ITER_GET_PAGES_ALLOC2
3877
3878         # 6.1
3879         LC_SRC_HAVE_GET_RANDOM_U32_AND_U64
3880         LC_SRC_NFS_FILLDIR_USE_CTX_RETURN_BOOL
3881         LC_SRC_HAVE_FILEMAP_GET_FOLIOS_CONTIG
3882
3883         # kernel patch to extend integrity interface
3884         LC_SRC_BIO_INTEGRITY_PREP_FN
3885 ])
3886
3887 AC_DEFUN([LC_PROG_LINUX_RESULTS], [
3888         AS_IF([test "x$enable_gss" != xno], [
3889                 LC_KEY_TYPE_INSTANTIATE_2ARGS
3890
3891                 LB2_TEST_CHECK_CONFIG_IM([CRYPTO_MD5], [],
3892                         [AC_MSG_WARN(
3893                         [kernel MD5 support is recommended by using GSS.])])
3894                 LB2_TEST_CHECK_CONFIG_IM([CRYPTO_SHA1], [],
3895                         [AC_MSG_WARN(
3896                         [kernel SHA1 support is recommended by using GSS.])])
3897                 LB2_TEST_CHECK_CONFIG_IM([CRYPTO_SHA256], [],
3898                         [AC_MSG_WARN(
3899                         [kernel SHA256 support is recommended by using GSS.])])
3900                 LB2_TEST_CHECK_CONFIG_IM([CRYPTO_SHA512], [],
3901                         [AC_MSG_WARN(
3902                         [kernel SHA512 support is recommended by using GSS.])])
3903         ])
3904         AS_IF([test "x$enable_server" != xno], [
3905                 LC_CONFIG_QUOTA
3906                 LC_STACK_SIZE
3907         ])
3908         LC_CONFIG_FHANDLE
3909         LC_POSIX_ACL_CONFIG
3910         LC_HAVE_PROJECT_QUOTA
3911
3912         # 3.11
3913         LC_INVALIDATE_RANGE
3914         LC_HAVE_DIR_CONTEXT
3915         LC_D_COMPARE_5ARGS
3916         LC_HAVE_DCOUNT
3917         LC_HAVE_DENTRY_D_U_D_ALIAS_LIST
3918         LC_HAVE_DENTRY_D_U_D_ALIAS_HLIST
3919         LC_HAVE_DENTRY_D_CHILD
3920         LC_PID_NS_FOR_CHILDREN
3921
3922         # 3.12
3923         LC_OLDSIZE_TRUNCATE_PAGECACHE
3924         LC_PTR_ERR_OR_ZERO_MISSING
3925         LC_KIOCB_KI_LEFT
3926         LC_REGISTER_SHRINKER_RET
3927
3928         # 3.13
3929         LC_VFS_RENAME_5ARGS
3930         LC_VFS_UNLINK_3ARGS
3931         LC_HAVE_D_IS_POSITIVE
3932
3933         # 3.14
3934         LC_HAVE_BVEC_ITER
3935         LC_HAVE_TRUNCATE_IPAGES_FINAL
3936         LC_IOPS_RENAME_WITH_FLAGS
3937         LC_IOP_SET_ACL
3938
3939         # 3.15
3940         LC_VFS_RENAME_6ARGS
3941
3942         # 3.16
3943         LC_DIRECTIO_USE_ITER
3944         LC_HAVE_IOV_ITER_INIT_DIRECTION
3945         LC_HAVE_IOV_ITER_TRUNCATE
3946         LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
3947
3948         # 3.17
3949         LC_HAVE_INTERVAL_BLK_INTEGRITY
3950         LC_KEY_MATCH_DATA
3951         LC_HAVE_BLK_INTEGRITY_ITER
3952
3953         # 3.18
3954         LC_PERCPU_COUNTER_INIT
3955         LC_NFS_FILLDIR_USE_CTX
3956
3957         # 3.19
3958         LC_KIOCB_HAS_NBYTES
3959         LC_HAVE_DQUOT_QC_DQBLK
3960         LC_HAVE_AIO_COMPLETE
3961         LC_HAVE_IS_ROOT_INODE
3962
3963         # 3.20
3964         LC_BACKING_DEV_INFO_REMOVAL
3965         LC_HAVE_BDI_CAP_MAP_COPY
3966
3967         # 4.1.0
3968         LC_IOV_ITER_RW
3969         LC_HAVE___BI_CNT
3970
3971         # 4.2
3972         LC_BIO_ENDIO_USES_ONE_ARG
3973         LC_SYMLINK_OPS_USE_NAMEIDATA
3974         LC_ACCOUNT_PAGE_DIRTIED_3ARGS
3975         LC_HAVE_CRYPTO_ALLOC_SKCIPHER
3976
3977         # 4.3
3978         LC_HAVE_INTERVAL_EXP_BLK_INTEGRITY
3979         LC_HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD
3980         LC_HAVE_CACHE_HEAD_HLIST
3981         LC_HAVE_XATTR_HANDLER_SIMPLIFIED
3982
3983         # 4.4
3984         LC_HAVE_LOCKS_LOCK_FILE_WAIT
3985         LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
3986         LC_HAVE_XATTR_HANDLER_NAME
3987         LC_HAVE_BI_OPF
3988         LC_HAVE_SUBMIT_BIO_2ARGS
3989         LC_HAVE_CLEAN_BDEV_ALIASES
3990
3991         # 4.5
3992         LC_HAVE_FILE_DENTRY
3993
3994         # 4.5
3995         LC_HAVE_INODE_LOCK
3996         LC_HAVE_IOP_GET_LINK
3997
3998         # 4.6
3999         LC_HAVE_IN_COMPAT_SYSCALL
4000         LC_HAVE_XATTR_HANDLER_INODE_PARAM
4001         LC_LOCK_PAGE_MEMCG
4002         LC_HAVE_DOWN_WRITE_KILLABLE
4003
4004         # 4.7
4005         LC_D_IN_LOOKUP
4006         LC_D_INIT
4007         LC_DIRECTIO_2ARGS
4008         LC_GENERIC_WRITE_SYNC_2ARGS
4009         LC_FOP_ITERATE_SHARED
4010
4011         # 4.8
4012         LC_HAVE_POSIX_ACL_VALID_USER_NS
4013         LC_D_COMPARE_4ARGS
4014         LC_FULL_NAME_HASH_3ARGS
4015         LC_STRUCT_POSIX_ACL_XATTR
4016         LC_IOP_XATTR
4017
4018         # 4.9
4019         LC_GROUP_INFO_GID
4020         LC_VFS_SETXATTR
4021         LC_POSIX_ACL_UPDATE_MODE
4022         LC_HAVE_BDI_IO_PAGES
4023
4024         # 4.10
4025         LC_IOP_GENERIC_READLINK
4026         LC_HAVE_VM_FAULT_ADDRESS
4027
4028         # 4.11
4029         LC_INODEOPS_ENHANCED_GETATTR
4030         LC_VM_OPERATIONS_REMOVE_VMF_ARG
4031         LC_HAVE_KEY_USAGE_REFCOUNT
4032         LC_HAVE_CRYPTO_MAX_ALG_NAME_128
4033
4034         # 4.12
4035         LC_CURRENT_TIME
4036         LC_SUPER_SETUP_BDI_NAME
4037         LC_BI_STATUS
4038
4039         # 4.13
4040         LC_BIO_INTEGRITY_ENABLED
4041         LC_BIO_INTEGRITY_PREP_FN_RETURNS_BOOL
4042         LC_HAVE_GET_INODE_USAGE
4043
4044         # 4.14
4045         LC_PAGEVEC_INIT_ONE_PARAM
4046         LC_BI_BDEV
4047         LC_INTERVAL_TREE_CACHED
4048
4049         # 4.17
4050         LC_VM_FAULT_T
4051         LC_VM_FAULT_RETRY
4052         LC_I_PAGES
4053
4054         # 4.18
4055         LC_ALLOC_FILE_PSEUDO
4056         LC_INODE_TIMESPEC64
4057
4058         # 4.20
4059         LC_RADIX_TREE_TAG_SET
4060         LC_UAPI_LINUX_MOUNT_H
4061         LC_HAVE_SUNRPC_CACHE_HASH_LOCK_IS_A_SPINLOCK
4062
4063         # 5.0
4064         LC_GENL_FAMILY_HAS_RESV_START_OP
4065
4066         # 5.1
4067         LC_HAVE_BVEC_ITER_ALL
4068
4069         # 5.2
4070         LC_KEYRING_SEARCH_4ARGS
4071
4072         # 5.3
4073         LC_BIO_BI_PHYS_SEGMENTS
4074         LC_LM_COMPARE_OWNER_EXISTS
4075
4076         # 5.5
4077         LC_FSCRYPT_DIGESTED_NAME
4078
4079         # 5.7
4080         LC_FSCRYPT_DUMMY_CONTEXT_ENABLED
4081
4082         # 5.9
4083         LC_HAVE_ITER_FILE_SPLICE_WRITE
4084
4085         # 5.9
4086         LC_FSCRYPT_FNAME_ALLOC_BUFFER
4087         LC_FSCRYPT_SET_CONTEXT
4088         LC_FSCRYPT_D_REVALIDATE
4089         LC_FSCRYPT_NOKEY_NAME
4090         LC_FSCRYPT_SET_TEST_DUMMY_ENC_CHAR_ARG
4091         LC_FSCRYPT_DUMMY_POLICY
4092
4093         # 5.10
4094         LC_FSCRYPT_IS_NOKEY_NAME
4095         LC_FSCRYPT_PREPARE_READDIR
4096
4097         # 5.11
4098         LC_BIO_SET_DEV
4099
4100         # 5.12
4101         LC_HAVE_USER_NAMESPACE_ARG
4102
4103         # 5.15
4104         LC_HAVE_GET_ACL_RCU_ARG
4105
4106         # 5.16
4107         LC_HAVE_SECURITY_DENTRY_INIT_WITH_XATTR_NAME_ARG
4108         LC_HAVE_KIOCB_COMPLETE_2ARGS
4109         LC_EXPORTS_DELETE_FROM_PAGE_CACHE
4110
4111         # 5.17
4112         LC_HAVE_INVALIDATE_FOLIO
4113         LC_HAVE_DIRTY_FOLIO
4114
4115         # 5.18
4116         LC_HAVE_ALLOC_INODE_SB
4117
4118         # 5.19
4119         LC_GRAB_CACHE_PAGE_WRITE_BEGIN_WITH_FLAGS
4120         LC_HAVE_ADDRESS_SPACE_OPERATIONS_READ_FOLIO
4121         LC_HAVE_READ_CACHE_PAGE_FILLER_WITH_FILE
4122         LC_HAVE_ADDRESS_SPACE_OPERATIONS_RELEASE_FOLIO
4123
4124         # 6.0
4125         LC_HAVE_NO_LLSEEK
4126         LC_DQUOT_TRANSFER_WITH_USER_NS
4127         LC_HAVE_ADDRESS_SPACE_OPERATIONS_MIGRATE_FOLIO
4128         LC_REGISTER_SHRINKER_FORMAT_NAMED
4129         LC_HAVE_VFS_SETXATTR_NON_CONST_VALUE
4130         LC_HAVE_IOV_ITER_GET_PAGES_ALLOC2
4131
4132         # 6.1
4133         LC_HAVE_GET_RANDOM_U32_AND_U64
4134         LC_NFS_FILLDIR_USE_CTX_RETURN_BOOL
4135         LC_HAVE_FILEMAP_GET_FOLIOS_CONTIG
4136
4137         # kernel patch to extend integrity interface
4138         LC_BIO_INTEGRITY_PREP_FN
4139 ])
4140
4141 #
4142 # LC_PROG_LINUX
4143 #
4144 # Lustre linux kernel checks
4145 #
4146 AC_DEFUN([LC_PROG_LINUX], [
4147         AC_MSG_NOTICE([Lustre kernel checks
4148 ==============================================================================])
4149
4150         LC_CONFIG_PINGER
4151         LC_CONFIG_CHECKSUM
4152         LC_CONFIG_FLOCK
4153         LC_CONFIG_HEALTH_CHECK_WRITE
4154         LC_CONFIG_LRU_RESIZE
4155         LC_CONFIG_GSS
4156
4157         LC_GLIBC_SUPPORT_FHANDLES
4158         LC_GLIBC_SUPPORT_COPY_FILE_RANGE
4159         LC_OPENSSL_SSK
4160         LC_OPENSSL_GETSEPOL
4161
4162         # 4.1.0 - Check export
4163         LC_HAVE_SYNC_READ_WRITE
4164
4165         # 4.8 - Check export
4166         LC_EXPORT_DEFAULT_FILE_SPLICE_READ
4167
4168         # 5.2 - Check export
4169         LC_ACCOUNT_PAGE_DIRTIED
4170
4171 ]) # LC_PROG_LINUX
4172
4173 #
4174 # LC_CONFIG_CLIENT
4175 #
4176 # Check whether to build the client side of Lustre
4177 #
4178 AC_DEFUN([LC_CONFIG_CLIENT], [
4179 AC_MSG_CHECKING([whether to build Lustre client support])
4180 AC_ARG_ENABLE([client],
4181         AS_HELP_STRING([--disable-client],
4182                 [disable Lustre client support]),
4183         [], [enable_client="yes"])
4184 AC_MSG_RESULT([$enable_client])
4185 ]) # LC_CONFIG_CLIENT
4186
4187 #
4188 # --enable-mpitests
4189 #
4190 AC_DEFUN([LB_CONFIG_MPITESTS], [
4191 AC_ARG_ENABLE([mpitests],
4192         AS_HELP_STRING([--enable-mpitests=<yes|no|mpicc wrapper>],
4193                        [include mpi tests]), [
4194                 enable_mpitests="yes"
4195                 case $enableval in
4196                 yes)
4197                         MPICC_WRAPPER="mpicc"
4198                         MPI_BIN=$(eval which $MPICC_WRAPPER | xargs dirname)
4199                         ;;
4200                 no)
4201                         enable_mpitests="no"
4202                         MPI_BIN=""
4203                         ;;
4204                 *)
4205                         MPICC_WRAPPER=$enableval
4206                         MPI_BIN=$(eval echo $MPICC_WRAPPER | xargs dirname)
4207                         ;;
4208                 esac
4209         ], [
4210                 enable_mpitests="yes"
4211                 MPICC_WRAPPER="mpicc"
4212                 MPI_BIN=$(eval which $MPICC_WRAPPER | xargs dirname)
4213         ])
4214
4215         if test "x$enable_mpitests" != "xno"; then
4216                 oldcc=$CC
4217                 CC=$MPICC_WRAPPER
4218                 AC_CACHE_CHECK([whether mpitests can be built],
4219                 lb_cv_mpi_tests, [AC_COMPILE_IFELSE([AC_LANG_SOURCE([
4220                         #include <mpi.h>
4221                         int main(void) {
4222                                 int flag;
4223                                 MPI_Initialized(&flag);
4224                                 return 0;
4225                         }
4226                 ])], [lb_cv_mpi_tests="yes"], [lb_cv_mpi_tests="no"])
4227                 ])
4228                 enable_mpitests=$lb_cv_mpi_tests
4229                 CC=$oldcc
4230         fi
4231         AC_SUBST(MPI_BIN)
4232         AC_SUBST(MPICC_WRAPPER)
4233 ]) # LB_CONFIG_MPITESTS
4234
4235 #
4236 # LC_ENABLE_QUOTA
4237 #
4238 # whether to enable quota support global control
4239 #
4240 AC_DEFUN([LC_ENABLE_QUOTA], [
4241 AC_MSG_CHECKING([whether to enable quota support global control])
4242 AC_ARG_ENABLE([quota],
4243         AS_HELP_STRING([--enable-quota],
4244                 [enable quota support]),
4245         [], [enable_quota="yes"])
4246 AS_IF([test "x$enable_quota" = xyes],
4247         [AC_MSG_RESULT([yes])],
4248         [AC_MSG_RESULT([no])])
4249 ]) # LC_ENABLE_QUOTA
4250
4251 #
4252 # LC_QUOTA
4253 #
4254 AC_DEFUN([LC_QUOTA], [
4255 #check global
4256 LC_ENABLE_QUOTA
4257 #check for utils
4258 AS_IF([test "x$enable_quota" != xno -a "x$enable_utils" != xno], [
4259         AC_CHECK_HEADER([sys/quota.h],
4260                 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1,
4261                         [Define to 1 if you have <sys/quota.h>.])],
4262                 [AC_MSG_ERROR([did not find <sys/quota.h> on your system])])
4263 ])
4264 ]) # LC_QUOTA
4265
4266 #
4267 # LC_OSD_ADDON
4268 #
4269 # configure support for optional OSD implementation
4270 #
4271 AC_DEFUN([LC_OSD_ADDON], [
4272 AC_MSG_CHECKING([whether to use OSD addon])
4273 AC_ARG_WITH([osd],
4274         AS_HELP_STRING([--with-osd=path],
4275                 [set path to optional osd]),
4276         [
4277         case "$with_osd" in
4278         no)
4279                 ENABLEOSDADDON=0
4280                 ;;
4281         *)
4282                 OSDADDON="$with_osd"
4283                 ENABLEOSDADDON=1
4284                 ;;
4285         esac
4286         ], [
4287                 ENABLEOSDADDON=0
4288         ])
4289 AS_IF([test $ENABLEOSDADDON -eq 0], [
4290         AC_MSG_RESULT([no])
4291         OSDADDON=""
4292 ], [
4293         OSDMODNAME=$(basename $OSDADDON)
4294         AS_IF([test -e $LUSTRE/$OSDMODNAME], [
4295                 AC_MSG_RESULT([cannot link])
4296                 OSDADDON=""
4297         ], [ln -s $OSDADDON $LUSTRE/$OSDMODNAME], [
4298                 AC_MSG_RESULT([$OSDMODNAME])
4299                 OSDADDON="obj-m += $OSDMODNAME/"
4300         ], [
4301                 AC_MSG_RESULT([cannot link])
4302                 OSDADDON=""
4303         ])
4304 ])
4305 AC_SUBST(OSDADDON)
4306 ]) # LC_OSD_ADDON
4307
4308 #
4309 # LC_CONFIG_CRYPTO
4310 #
4311 # Check whether to enable Lustre client crypto
4312 #
4313 AC_DEFUN([LC_CONFIG_CRYPTO], [
4314 AC_MSG_CHECKING([whether to enable Lustre client crypto])
4315 AC_ARG_ENABLE([crypto],
4316         AS_HELP_STRING([--enable-crypto=yes|no|in-kernel],
4317                 [enable Lustre client crypto (default is yes), use 'in-kernel' to force use of in-kernel fscrypt instead of embedded llcrypt]),
4318         [], [enable_crypto="auto"])
4319 AS_IF([test "x$enable_crypto" != xno -a "x$enable_dist" = xno], [
4320         AC_MSG_RESULT(
4321         )
4322         LC_IS_ENCRYPTED
4323         LC_FSCRYPT_SUPPORT])
4324 AS_IF([test "x$enable_crypto" = xin-kernel], [
4325         AS_IF([test "x$has_fscrypt_support" = xyes], [
4326               AC_DEFINE(HAVE_LUSTRE_CRYPTO, 1, [Enable Lustre client crypto via in-kernel fscrypt])], [
4327               AC_MSG_ERROR([Lustre client crypto cannot be enabled via in-kernel fscrypt.])
4328               enable_crypto=no])],
4329         [AS_IF([test "x$has_is_encrypted" = xyes], [
4330               AC_DEFINE(HAVE_LUSTRE_CRYPTO, 1, [Enable Lustre client crypto via embedded llcrypt])
4331               AC_DEFINE(CONFIG_LL_ENCRYPTION, 1, [embedded llcrypt])
4332               AC_DEFINE(HAVE_FSCRYPT_DUMMY_CONTEXT_ENABLED, 1, [embedded llcrypt uses llcrypt_dummy_context_enabled()])
4333               enable_crypto="embedded-llcrypt"
4334               enable_llcrypt=yes], [
4335               AS_IF([test "x$enable_crypto" = xyes],
4336                     [AC_MSG_ERROR([Lustre client crypto cannot be enabled because of lack of encryption support in your kernel.])])
4337               AS_IF([test "x$enable_crypto" != xno -a "x$enable_dist" = xno],
4338                     [AC_MSG_WARN(Lustre client crypto cannot be enabled because of lack of encryption support in your kernel.)])
4339               enable_crypto=no])])
4340 AS_IF([test "x$enable_dist" != xno], [
4341         enable_crypto=yes
4342         enable_llcrypt=yes])
4343 AC_MSG_RESULT([$enable_crypto])
4344 ]) # LC_CONFIG_CRYPTO
4345
4346 #
4347 # LC_CONFIGURE
4348 #
4349 # other configure checks
4350 #
4351 AC_DEFUN([LC_CONFIGURE], [
4352 AC_MSG_NOTICE([Lustre core checks
4353 ==============================================================================])
4354
4355 AS_IF([test $target_cpu == "i686" -o $target_cpu == "x86_64"],
4356         [CFLAGS="$CFLAGS -Wall -Werror"])
4357
4358 # maximum MDS thread count
4359 LC_MDS_MAX_THREADS
4360
4361 # lustre/utils/gss/gss_util.c
4362 # lustre/utils/gss/gssd_proc.c
4363 # lustre/utils/gss/krb5_util.c
4364 # lustre/utils/llog_reader.c
4365 # lustre/utils/create_iam.c
4366 # lustre/utils/libiam.c
4367 AC_CHECK_HEADERS([netdb.h endian.h])
4368 AC_CHECK_FUNCS([gethostbyname])
4369
4370 # lustre/utils/llverfs.c lustre/utils/libmount_utils_ldiskfs.c
4371 AC_CHECK_HEADERS([ext2fs/ext2fs.h], [], [
4372         AS_IF([test "x$enable_utils" = xyes -a "x$enable_ldiskfs" = xyes], [
4373                 AC_MSG_ERROR([
4374 ext2fs.h not found. Please install e2fsprogs development package.
4375                 ])
4376         ])
4377 ])
4378
4379 # lustre/tests/statx_test.c
4380 AC_CHECK_FUNCS([statx])
4381
4382 # lustre/utils/lfs.c
4383 AS_IF([test "$enable_dist" = "no"], [
4384                 AC_CHECK_LIB([z], [crc32], [
4385                                  AC_CHECK_HEADER([zlib.h], [], [
4386                                                  AC_MSG_ERROR([zlib.h not found.])])
4387                                  ], [
4388                                  AC_MSG_ERROR([
4389                 zlib library not found. Please install zlib development package.])
4390                 ])
4391 ])
4392
4393 SELINUX=""
4394
4395 AC_CHECK_LIB([selinux], [is_selinux_enabled],
4396         [AC_CHECK_HEADERS([selinux/selinux.h],
4397                         [SELINUX="-lselinux"
4398                         AC_DEFINE([HAVE_SELINUX], 1,
4399                                 [support for selinux ])],
4400                         [AC_MSG_WARN([
4401
4402 No libselinux-devel package found, unable to build selinux enabled tools
4403 ])
4404 ])],
4405         [AC_MSG_WARN([
4406
4407 No selinux package found, unable to build selinux enabled tools
4408 ])
4409 ])
4410 AC_SUBST(SELINUX)
4411
4412 AC_CHECK_LIB([keyutils], [add_key])
4413
4414 # Super safe df
4415 AC_MSG_CHECKING([whether to report minimum OST free space])
4416 AC_ARG_ENABLE([mindf],
4417         AS_HELP_STRING([--enable-mindf],
4418                 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
4419         [], [enable_mindf="no"])
4420 AC_MSG_RESULT([$enable_mindf])
4421 AS_IF([test "$enable_mindf" = "yes"],
4422         [AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])])
4423
4424 AC_MSG_CHECKING([whether to randomly failing memory alloc])
4425 AC_ARG_ENABLE([fail_alloc],
4426         AS_HELP_STRING([--disable-fail-alloc],
4427                 [disable randomly alloc failure]),
4428         [], [enable_fail_alloc="yes"])
4429 AC_MSG_RESULT([$enable_fail_alloc])
4430 AS_IF([test "x$enable_fail_alloc" != xno],
4431         [AC_DEFINE([RANDOM_FAIL_ALLOC], 1,
4432                 [enable randomly alloc failure])])
4433
4434 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
4435 AC_ARG_ENABLE([invariants],
4436         AS_HELP_STRING([--enable-invariants],
4437                 [enable invariant checking (cpu intensive)]),
4438         [], [enable_invariants="no"])
4439 AC_MSG_RESULT([$enable_invariants])
4440 AS_IF([test "x$enable_invariants" = xyes],
4441         [AC_DEFINE([CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK], 1,
4442                 [enable invariant checking])])
4443
4444 AC_MSG_CHECKING([whether to track references with lu_ref])
4445 AC_ARG_ENABLE([lu_ref],
4446         AS_HELP_STRING([--enable-lu_ref],
4447                 [enable lu_ref reference tracking code]),
4448         [], [enable_lu_ref="no"])
4449 AC_MSG_RESULT([$enable_lu_ref])
4450 AS_IF([test "x$enable_lu_ref" = xyes],
4451         [AC_DEFINE([CONFIG_LUSTRE_DEBUG_LU_REF], 1,
4452                 [enable lu_ref reference tracking code])])
4453
4454 AC_MSG_CHECKING([whether to enable page state tracking])
4455 AC_ARG_ENABLE([pgstate-track],
4456         AS_HELP_STRING([--enable-pgstate-track],
4457                 [enable page state tracking]),
4458         [], [enable_pgstat_track="no"])
4459 AC_MSG_RESULT([$enable_pgstat_track])
4460 AS_IF([test "x$enable_pgstat_track" = xyes],
4461         [AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
4462                 [enable page state tracking code])])
4463
4464 PKG_PROG_PKG_CONFIG
4465 AC_MSG_CHECKING([systemd unit file directory])
4466 AC_ARG_WITH([systemdsystemunitdir],
4467         [AS_HELP_STRING([--with-systemdsystemunitdir=DIR],
4468                 [Directory for systemd service files])],
4469         [], [with_systemdsystemunitdir=auto])
4470 AS_IF([test "x$with_systemdsystemunitdir" = "xyes" -o "x$with_systemdsystemunitdir" = "xauto"],
4471         [def_systemdsystemunitdir=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)
4472         AS_IF([test "x$def_systemdsystemunitdir" = "x"],
4473                 [AS_IF([test "x$with_systemdsystemunitdir" = "xyes"],
4474                 [AC_MSG_ERROR([systemd support requested but pkg-config unable to query systemd package])])
4475                 with_systemdsystemunitdir=no],
4476         [with_systemdsystemunitdir="$def_systemdsystemunitdir"])])
4477 AS_IF([test "x$with_systemdsystemunitdir" != "xno"],
4478         [AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])])
4479 AC_MSG_RESULT([$with_systemdsystemunitdir])
4480
4481 AC_MSG_CHECKING([bash-completion directory])
4482 AC_ARG_WITH([bash-completion-dir],
4483         AS_HELP_STRING([--with-bash-completion-dir[=PATH]],
4484                 [Install the bash auto-completion script in this directory.]),
4485         [],
4486         [with_bash_completion_dir=yes])
4487 AS_IF([test "x$with_bash_completion_dir" = "xyes"], [
4488         BASH_COMPLETION_DIR="`pkg-config --variable=completionsdir bash-completion`"
4489         AS_IF([test "x$BASH_COMPLETION_DIR" = "x"], [
4490                 [BASH_COMPLETION_DIR="/usr/share/bash-completion/completions"]
4491         ])
4492 ], [
4493         BASH_COMPLETION_DIR="$with_bash_completion_dir"
4494 ])
4495 AC_SUBST([BASH_COMPLETION_DIR])
4496 AC_MSG_RESULT([$BASH_COMPLETION_DIR])
4497 ]) # LC_CONFIGURE
4498
4499 #
4500 # LC_CONDITIONALS
4501 #
4502 # AM_CONDITIONALS for lustre
4503 #
4504 AC_DEFUN([LC_CONDITIONALS], [
4505 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
4506 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
4507 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
4508 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
4509 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
4510 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
4511 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
4512 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
4513 AM_CONDITIONAL(GSS_SSK, test x$enable_ssk = xyes)
4514 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
4515 AM_CONDITIONAL(HAVE_SYSTEMD, test "x$with_systemdsystemunitdir" != "xno")
4516 AM_CONDITIONAL(ENABLE_BASH_COMPLETION, test "x$with_bash_completion_dir" != "xno")
4517 AM_CONDITIONAL(XATTR_HANDLER, test "x$lb_cv_compile_xattr_handler_flags" = xyes)
4518 AM_CONDITIONAL(SELINUX, test "$SELINUX" = "-lselinux")
4519 AM_CONDITIONAL(GETSEPOL, test x$enable_getsepol = xyes)
4520 AM_CONDITIONAL(LLCRYPT, test x$enable_llcrypt = xyes)
4521 AM_CONDITIONAL(LIBAIO, test x$enable_libaio = xyes)
4522 ]) # LC_CONDITIONALS
4523
4524 #
4525 # LC_CONFIG_FILES
4526 #
4527 # files that should be generated with AC_OUTPUT
4528 #
4529 AC_DEFUN([LC_CONFIG_FILES],
4530 [AC_CONFIG_FILES([
4531 lustre/Makefile
4532 lustre/autoMakefile
4533 lustre/autoconf/Makefile
4534 lustre/conf/Makefile
4535 lustre/conf/resource/Makefile
4536 lustre/contrib/Makefile
4537 lustre/doc/Makefile
4538 lustre/include/Makefile
4539 lustre/include/lustre/Makefile
4540 lustre/include/uapi/linux/lustre/Makefile
4541 lustre/kernel_patches/targets/5.14-rhel9.1.target
4542 lustre/kernel_patches/targets/5.14-rhel9.0.target
4543 lustre/kernel_patches/targets/4.18-rhel8.7.target
4544 lustre/kernel_patches/targets/4.18-rhel8.6.target
4545 lustre/kernel_patches/targets/4.18-rhel8.5.target
4546 lustre/kernel_patches/targets/4.18-rhel8.4.target
4547 lustre/kernel_patches/targets/4.18-rhel8.3.target
4548 lustre/kernel_patches/targets/4.18-rhel8.2.target
4549 lustre/kernel_patches/targets/4.18-rhel8.1.target
4550 lustre/kernel_patches/targets/4.18-rhel8.target
4551 lustre/kernel_patches/targets/3.10-rhel7.9.target
4552 lustre/kernel_patches/targets/3.10-rhel7.8.target
4553 lustre/kernel_patches/targets/3.10-rhel7.7.target
4554 lustre/kernel_patches/targets/3.10-rhel7.6.target
4555 lustre/kernel_patches/targets/3.10-rhel7.5.target
4556 lustre/kernel_patches/targets/4.14-rhel7.5.target
4557 lustre/kernel_patches/targets/4.14-rhel7.6.target
4558 lustre/kernel_patches/targets/4.12-sles12sp4.target
4559 lustre/kernel_patches/targets/4.12-sles12sp5.target
4560 lustre/kernel_patches/targets/4.12-sles15sp1.target
4561 lustre/kernel_patches/targets/5.3-sles15sp2.target
4562 lustre/kernel_patches/targets/5.3-sles15sp3.target
4563 lustre/kernel_patches/targets/5.14-sles15sp4.target
4564 lustre/kernel_patches/targets/3.x-fc18.target
4565 lustre/kernel_patches/targets/5.10-oe2203.target
4566 lustre/ldlm/Makefile
4567 lustre/ldlm/autoMakefile
4568 lustre/ec/autoMakefile
4569 lustre/ec/Makefile
4570 lustre/fid/Makefile
4571 lustre/fid/autoMakefile
4572 lustre/llite/Makefile
4573 lustre/llite/autoMakefile
4574 lustre/lov/Makefile
4575 lustre/lov/autoMakefile
4576 lustre/mdc/Makefile
4577 lustre/mdc/autoMakefile
4578 lustre/lmv/Makefile
4579 lustre/lmv/autoMakefile
4580 lustre/lfsck/Makefile
4581 lustre/lfsck/autoMakefile
4582 lustre/mdt/Makefile
4583 lustre/mdt/autoMakefile
4584 lustre/mdd/Makefile
4585 lustre/mdd/autoMakefile
4586 lustre/fld/Makefile
4587 lustre/fld/autoMakefile
4588 lustre/obdclass/Makefile
4589 lustre/obdclass/autoMakefile
4590 lustre/obdecho/Makefile
4591 lustre/obdecho/autoMakefile
4592 lustre/ofd/Makefile
4593 lustre/ofd/autoMakefile
4594 lustre/osc/Makefile
4595 lustre/osc/autoMakefile
4596 lustre/ost/Makefile
4597 lustre/ost/autoMakefile
4598 lustre/osd-ldiskfs/Makefile
4599 lustre/osd-ldiskfs/autoMakefile
4600 lustre/osd-zfs/Makefile
4601 lustre/osd-zfs/autoMakefile
4602 lustre/mgc/Makefile
4603 lustre/mgc/autoMakefile
4604 lustre/mgs/Makefile
4605 lustre/mgs/autoMakefile
4606 lustre/target/Makefile
4607 lustre/target/autoMakefile
4608 lustre/ptlrpc/Makefile
4609 lustre/ptlrpc/autoMakefile
4610 lustre/ptlrpc/gss/Makefile
4611 lustre/ptlrpc/gss/autoMakefile
4612 lustre/quota/Makefile
4613 lustre/quota/autoMakefile
4614 lustre/scripts/Makefile
4615 lustre/scripts/systemd/Makefile
4616 lustre/tests/Makefile
4617 lustre/tests/mpi/Makefile
4618 lustre/tests/iabf/Makefile
4619 lustre/tests/lutf/Makefile
4620 lustre/tests/lutf/src/Makefile
4621 lustre/tests/kernel/Makefile
4622 lustre/tests/kernel/autoMakefile
4623 lustre/utils/Makefile
4624 lustre/utils/gss/Makefile
4625 lustre/osp/Makefile
4626 lustre/osp/autoMakefile
4627 lustre/lod/Makefile
4628 lustre/lod/autoMakefile
4629 ])
4630 ]) # LC_CONFIG_FILES