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_STACK_SIZE
  70 #
  71 # Ensure the stack size is at least 8k in Lustre server (all kernels)
  72 #
  73 AC_DEFUN([LC_STACK_SIZE], [
  74 LB_CHECK_COMPILE([if stack size is at least 8k],
  75 stack_size_8k, [
  76         #include <linux/thread_info.h>
  77 ], [
  78         #if THREAD_SIZE < 8192
  79         #error "stack size < 8192"
  80         #endif
  81 ], [], [AC_MSG_ERROR([
  82
  83 Lustre requires that Linux is configured with at least a 8KB stack.
  84 ])])
  85 ]) # LC_STACK_SIZE
  86
  87 #
  88 # LC_MDS_MAX_THREADS
  89 #
  90 # Allow the user to set the MDS thread upper limit
  91 #
  92 AC_DEFUN([LC_MDS_MAX_THREADS], [
  93 AC_MSG_CHECKING([for maximum number of MDS threads])
  94 AC_ARG_WITH([mds_max_threads],
  95         AC_HELP_STRING([--with-mds-max-threads=count],
  96                 [maximum threads available on the MDS: (default=512)]),
  97         [AC_DEFINE_UNQUOTED(MDS_MAX_THREADS, $with_mds_max_threads,
  98                 [maximum number of MDS threads])])
  99 AC_MSG_RESULT([$with_mds_max_threads])
 100 ]) # LC_MDS_MAX_THREADS
 101
 102 #
 103 # LC_CONFIG_PINGER
 104 #
 105 # the pinger is temporary, until we have the recovery node in place
 106 #
 107 AC_DEFUN([LC_CONFIG_PINGER], [
 108 AC_MSG_CHECKING([whether to enable Lustre pinger support])
 109 AC_ARG_ENABLE([pinger],
 110         AC_HELP_STRING([--disable-pinger],
 111                 [disable recovery pinger support]),
 112         [], [enable_pinger="yes"])
 113 AC_MSG_RESULT([$enable_pinger])
 114 AS_IF([test "x$enable_pinger" != xno],
 115         [AC_DEFINE(CONFIG_LUSTRE_FS_PINGER, 1,[Use the Pinger])])
 116 ]) # LC_CONFIG_PINGER
 117
 118 #
 119 # LC_CONFIG_CHECKSUM
 120 #
 121 # do checksum of bulk data between client and OST
 122 #
 123 AC_DEFUN([LC_CONFIG_CHECKSUM], [
 124 AC_MSG_CHECKING([whether to enable data checksum support])
 125 AC_ARG_ENABLE([checksum],
 126         AC_HELP_STRING([--disable-checksum],
 127                 [disable data checksum support]),
 128         [], [enable_checksum="yes"])
 129 AC_MSG_RESULT([$enable_checksum])
 130 AS_IF([test "x$enable_checksum" != xno],
 131         [AC_DEFINE(ENABLE_CHECKSUM, 1, [do data checksums])])
 132 ]) # LC_CONFIG_CHECKSUM
 133
 134 #
 135 # LC_CONFIG_FLOCK
 136 #
 137 # enable distributed flock by default
 138 #
 139 AC_DEFUN([LC_CONFIG_FLOCK], [
 140 AC_MSG_CHECKING([whether to enable flock by default])
 141 AC_ARG_ENABLE([flock],
 142         AC_HELP_STRING([--disable-flock],
 143                 [disable flock by default]),
 144         [], [enable_flock="yes"])
 145 AC_MSG_RESULT([$enable_flock])
 146 AS_IF([test "x$enable_flock" != xno],
 147         [AC_DEFINE(ENABLE_FLOCK, 1, [enable flock by default])])
 148 ]) # LC_CONFIG_FLOCK
 149
 150 #
 151 # LC_CONFIG_HEALTH_CHECK_WRITE
 152 #
 153 # Turn off the actual write to the disk
 154 #
 155 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE], [
 156 AC_MSG_CHECKING([whether to enable a write with the health check])
 157 AC_ARG_ENABLE([health_write],
 158         AC_HELP_STRING([--enable-health_write],
 159                 [enable disk writes when doing health check]),
 160         [], [enable_health_write="no"])
 161 AC_MSG_RESULT([$enable_health_write])
 162 AS_IF([test "x$enable_health_write" != xno],
 163         [AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, [Write when Checking Health])])
 164 ]) # LC_CONFIG_HEALTH_CHECK_WRITE
 165
 166 #
 167 # LC_CONFIG_LRU_RESIZE
 168 #
 169 AC_DEFUN([LC_CONFIG_LRU_RESIZE], [
 170 AC_MSG_CHECKING([whether to enable lru self-adjusting])
 171 AC_ARG_ENABLE([lru_resize],
 172         AC_HELP_STRING([--enable-lru-resize],
 173                 [enable lru resize support]),
 174         [], [enable_lru_resize="yes"])
 175 AC_MSG_RESULT([$enable_lru_resize])
 176 AS_IF([test "x$enable_lru_resize" != xno],
 177         [AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])])
 178 ]) # LC_CONFIG_LRU_RESIZE
 179
 180 #
 181 # LC_QUOTA_CONFIG
 182 #
 183 # Quota support. The kernel must support CONFIG_QUOTA.
 184 #
 185 AC_DEFUN([LC_QUOTA_CONFIG], [
 186 LB_CHECK_CONFIG_IM([QUOTA], [],
 187         [AC_MSG_ERROR([
 188
 189 Lustre quota requires that CONFIG_QUOTA is enabled in your kernel.
 190 ])])
 191 ]) # LC_QUOTA_CONFIG
 192
 193 #
 194 # LC_CONFIG_FHANDLE
 195 #
 196 # fhandle kernel support for open_by_handle_at() and name_to_handle_at()
 197 # system calls. The kernel must support CONFIG_FHANDLE.
 198 #
 199 AC_DEFUN([LC_CONFIG_FHANDLE], [
 200 LB_CHECK_CONFIG_IM([FHANDLE], [],
 201         [AC_MSG_ERROR([
 202
 203 Lustre fid handling requires that CONFIG_FHANDLE is enabled in your kernel.
 204 ])])
 205 ]) # LC_CONFIG_FHANDLE
 206
 207 #
 208 # LC_POSIX_ACL_CONFIG
 209 #
 210 # POSIX ACL support.
 211 #
 212 AC_DEFUN([LC_POSIX_ACL_CONFIG], [
 213 LB_CHECK_CONFIG_IM([FS_POSIX_ACL],
 214         [AC_DEFINE(CONFIG_LUSTRE_FS_POSIX_ACL, 1, [Enable POSIX acl])
 215 ], [ ])
 216 ]) # LC_POSIX_ACL_CONFIG
 217
 218 LB_CHECK_CONFIG_IM([CRYPTO_MD5], [],
 219                 [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
 220
 221 #
 222 # LC_CONFIG_GSS_KEYRING
 223 #
 224 # default 'auto', tests for dependencies, if found, enables;
 225 # only called if gss is enabled
 226 #
 227 AC_DEFUN([LC_CONFIG_GSS_KEYRING], [
 228 AC_MSG_CHECKING([whether to enable gss keyring backend])
 229 AC_ARG_ENABLE([gss_keyring],
 230         [AC_HELP_STRING([--disable-gss-keyring],
 231                 [disable gss keyring backend])],
 232         [], [enable_gss_keyring="auto"])
 233 AC_MSG_RESULT([$enable_gss_keyring])
 234 AS_IF([test "x$enable_gss_keyring" != xno], [
 235         LB_CHECK_CONFIG_IM([KEYS], [], [
 236                 gss_keyring_conf_test="fail"
 237                 AC_MSG_WARN([GSS keyring backend requires that CONFIG_KEYS be enabled in your kernel.])])
 238
 239         AC_CHECK_LIB([keyutils], [keyctl_search], [], [
 240                 gss_keyring_conf_test="fail"
 241                 AC_MSG_WARN([GSS keyring backend requires libkeyutils])])
 242
 243         AS_IF([test "x$gss_keyring_conf_test" != xfail], [
 244                 AC_DEFINE([HAVE_GSS_KEYRING], [1],
 245                         [Define this if you enable gss keyring backend])
 246                 enable_gss_keyring="yes"
 247         ], [
 248                 AS_IF([test "x$enable_gss_keyring" = xyes], [
 249                         AC_MSG_ERROR([Cannot enable gss_keyring. See above for details.])
 250                 ])
 251         ])
 252 ])
 253 ]) # LC_CONFIG_GSS_KEYRING
 254
 255 #
 256 # LC_KEY_TYPE_INSTANTIATE_2ARGS
 257 #
 258 # rhel7 key_type->instantiate takes 2 args (struct key, struct key_preparsed_payload)
 259 #
 260 AC_DEFUN([LC_KEY_TYPE_INSTANTIATE_2ARGS], [
 261 LB_CHECK_COMPILE([if 'key_type->instantiate' has two args],
 262 key_type_instantiate_2args, [
 263         #include <linux/key-type.h>
 264 ],[
 265         ((struct key_type *)0)->instantiate(0, NULL);
 266 ],[
 267         AC_DEFINE(HAVE_KEY_TYPE_INSTANTIATE_2ARGS, 1,
 268                 [key_type->instantiate has two args])
 269 ])
 270 ]) # LC_KEY_TYPE_INSTANTIATE_2ARGS
 271
 272 #
 273 # LC_CONFIG_SUNRPC
 274 #
 275 AC_DEFUN([LC_CONFIG_SUNRPC], [
 276 LB_CHECK_CONFIG_IM([SUNRPC], [], [
 277         AS_IF([test "x$sunrpc_required" = xyes], [
 278                 AC_MSG_ERROR([
 279
 280 kernel SUNRPC support is required by using GSS.
 281 ])
 282         ])])
 283 ]) # LC_CONFIG_SUNRPC
 284
 285 #
 286 # LC_CONFIG_GSS (default 'auto' (tests for dependencies, if found, enables))
 287 #
 288 # Build gss and related tools of Lustre. Currently both kernel and user space
 289 # parts are depend on linux platform.
 290 #
 291 AC_DEFUN([LC_CONFIG_GSS], [
 292 AC_MSG_CHECKING([whether to enable gss support])
 293 AC_ARG_ENABLE([gss],
 294         [AC_HELP_STRING([--enable-gss], [enable gss support])],
 295         [], [enable_gss="auto"])
 296 AC_MSG_RESULT([$enable_gss])
 297
 298 AC_ARG_VAR([TEST_JOBS],
 299     [simultaneous jobs during configure (defaults to $(nproc))])
 300 if test "x$ac_cv_env_TEST_JOBS_set" != "xset"; then
 301         TEST_JOBS=${TEST_JOBS:-$(nproc)}
 302 fi
 303 AC_SUBST(TEST_JOBS)
 304
 305 AC_ARG_VAR([TEST_DIR],
 306     [location of temporary parallel configure tests (defaults to $PWD/lb2)])
 307         TEST_DIR=${TEST_DIR:-$PWD/_lpb}
 308 AC_SUBST(TEST_DIR)
 309
 310 AS_IF([test "x$enable_gss" != xno], [
 311         LC_CONFIG_GSS_KEYRING
 312         LC_KEY_TYPE_INSTANTIATE_2ARGS
 313         sunrpc_required=$enable_gss
 314         LC_CONFIG_SUNRPC
 315         sunrpc_required="no"
 316
 317         LB_CHECK_CONFIG_IM([CRYPTO_MD5], [],
 318                 [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
 319         LB_CHECK_CONFIG_IM([CRYPTO_SHA1], [],
 320                 [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
 321         LB_CHECK_CONFIG_IM([CRYPTO_SHA256], [],
 322                 [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
 323         LB_CHECK_CONFIG_IM([CRYPTO_SHA512], [],
 324                 [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
 325
 326         require_krb5=$enable_gss
 327         AC_KERBEROS_V5
 328         require_krb5="no"
 329
 330         AS_IF([test -n "$KRBDIR"], [
 331                 gss_conf_test="success"
 332         ], [
 333                 gss_conf_test="failure"
 334         ])
 335
 336         AS_IF([test "x$gss_conf_test" = xsuccess && test "x$enable_gss" != xno], [
 337                 AC_DEFINE([HAVE_GSS], [1], [Define this is if you enable gss])
 338                 enable_gss="yes"
 339         ], [
 340                 enable_gss_keyring="no"
 341                 enable_gss="no"
 342         ])
 343
 344         enable_ssk=$enable_gss
 345 ], [
 346         enable_gss_keyring="no"
 347 ])
 348 ]) # LC_CONFIG_GSS
 349
 350 # LC_OPENSSL_SSK
 351 #
 352 # OpenSSL 1.0+ return int for HMAC functions but older SLES11 versions do not
 353 AC_DEFUN([LC_OPENSSL_SSK], [
 354 AC_MSG_CHECKING([whether OpenSSL has functions needed for SSK])
 355 AS_IF([test "x$enable_ssk" != xno], [
 356 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 357         #include <openssl/hmac.h>
 358         #include <openssl/evp.h>
 359
 360         int main(void) {
 361                 int rc;
 362                 rc = HMAC_Init_ex(NULL, "test", 4, EVP_md_null(), NULL);
 363         }
 364 ])],[AC_DEFINE(HAVE_OPENSSL_SSK, 1,
 365                [OpenSSL HMAC functions needed for SSK])],
 366         [enable_ssk="no"])
 367 ])
 368 AC_MSG_RESULT([$enable_ssk])
 369 ]) # LC_OPENSSL_SSK
 370
 371 # LC_OPENSSL_GETSEPOL
 372 #
 373 # OpenSSL is needed for l_getsepol
 374 AC_DEFUN([LC_OPENSSL_GETSEPOL], [
 375 AC_MSG_CHECKING([whether openssl-devel is present])
 376 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 377         #include <openssl/evp.h>
 378
 379         int main(void) {
 380                 EVP_MD_CTX *mdctx = EVP_MD_CTX_create();
 381         }
 382 ])],[
 383         AC_DEFINE(HAVE_OPENSSL_GETSEPOL, 1, [openssl-devel is present])
 384         enable_getsepol="yes"
 385
 386 ],[
 387         enable_getsepol="no"
 388         AC_MSG_WARN([
 389
 390 No openssl-devel headers found, unable to build l_getsepol and SELinux status checking
 391 ])
 392 ])
 393 AC_MSG_RESULT([$enable_getsepol])
 394 ]) # LC_OPENSSL_GETSEPOL
 395
 396 # LC_HAVE_LIBAIO
 397 AC_DEFUN([LC_HAVE_LIBAIO], [
 398         AC_CHECK_HEADER([libaio.h],
 399                 enable_libaio="yes",
 400                 AC_MSG_WARN([libaio is not installed in the system]))
 401 ]) # LC_HAVE_LIBAIO
 402
 403 AC_DEFUN([LC_HAVE_PROJECT_QUOTA], [
 404 LB_CHECK_COMPILE([if get_projid exists],
 405 get_projid, [
 406         struct inode;
 407         #include <linux/quota.h>
 408 ],[
 409         struct dquot_operations ops = { };
 410
 411         ops.get_projid(NULL, NULL);
 412 ],[
 413         AC_DEFINE(HAVE_PROJECT_QUOTA, 1,
 414                 [get_projid function exists])
 415 ])
 416 ]) # LC_HAVE_PROJECT_QUOTA
 417
 418 #
 419 # LC_INVALIDATE_RANGE
 420 #
 421 # 3.11 invalidatepage requires the length of the range to invalidate
 422 #
 423 AC_DEFUN([LC_INVALIDATE_RANGE], [
 424 LB_CHECK_COMPILE([if 'address_space_operations.invalidatepage' requires 3 arguments],
 425 address_space_ops_invalidatepage_3args, [
 426         #include <linux/fs.h>
 427 ],[
 428         struct address_space_operations a_ops;
 429         a_ops.invalidatepage(NULL, 0, 0);
 430 ],[
 431         AC_DEFINE(HAVE_INVALIDATE_RANGE, 1,
 432                 [address_space_operations.invalidatepage needs 3 arguments])
 433 ])
 434 ]) # LC_INVALIDATE_RANGE
 435
 436 #
 437 # LC_HAVE_DIR_CONTEXT
 438 #
 439 # 3.11 readdir now takes the new struct dir_context
 440 #
 441 AC_DEFUN([LC_HAVE_DIR_CONTEXT], [
 442 LB_CHECK_COMPILE([if 'dir_context' exist],
 443 dir_context, [
 444         #include <linux/fs.h>
 445 ],[
 446 #ifdef FMODE_KABI_ITERATE
 447 #error "back to use readdir in kabi_extand mode"
 448 #else
 449         struct dir_context ctx;
 450
 451         ctx.pos = 0;
 452 #endif
 453 ],[
 454         AC_DEFINE(HAVE_DIR_CONTEXT, 1,
 455                 [dir_context exist])
 456 ])
 457 ]) # LC_HAVE_DIR_CONTEXT
 458
 459 #
 460 # LC_D_COMPARE_5ARGS
 461 #
 462 # 3.11 dentry_operations.d_compare() taken 5 arguments.
 463 #
 464 AC_DEFUN([LC_D_COMPARE_5ARGS], [
 465 LB_CHECK_COMPILE([if 'd_compare' taken 5 arguments],
 466 d_compare_5args, [
 467         #include <linux/dcache.h>
 468 ],[
 469         ((struct dentry_operations*)0)->d_compare(NULL,NULL,0,NULL,NULL);
 470 ],[
 471         AC_DEFINE(HAVE_D_COMPARE_5ARGS, 1,
 472                 [d_compare need 5 arguments])
 473 ])
 474 ]) # LC_D_COMPARE_5ARGS
 475
 476 #
 477 # LC_HAVE_DCOUNT
 478 #
 479 # 3.11 need to access d_count to get dentry reference count
 480 #
 481 AC_DEFUN([LC_HAVE_DCOUNT], [
 482 LB_CHECK_COMPILE([if 'd_count' exists],
 483 d_count, [
 484         #include <linux/dcache.h>
 485 ],[
 486         struct dentry de = { };
 487         int count;
 488
 489         count = d_count(&de);
 490 ],[
 491         AC_DEFINE(HAVE_D_COUNT, 1,
 492                 [d_count exist])
 493 ])
 494 ]) # LC_HAVE_DCOUNT
 495
 496 #
 497 # LC_PID_NS_FOR_CHILDREN
 498 #
 499 # 3.11 replaces pid_ns by pid_ns_for_children in struct nsproxy
 500 #
 501 AC_DEFUN([LC_PID_NS_FOR_CHILDREN], [
 502 LB_CHECK_COMPILE([if 'struct nsproxy' has 'pid_ns_for_children'],
 503 pid_ns_for_children, [
 504         #include <linux/nsproxy.h>
 505 ],[
 506         struct nsproxy ns;
 507         ns.pid_ns_for_children = NULL;
 508 ],[
 509         AC_DEFINE(HAVE_PID_NS_FOR_CHILDREN, 1,
 510                   ['struct nsproxy' has 'pid_ns_for_children'])
 511 ])
 512 ]) # LC_PID_NS_FOR_CHILDREN
 513
 514 #
 515 # LC_OLDSIZE_TRUNCATE_PAGECACHE
 516 #
 517 # 3.12 truncate_pagecache without oldsize parameter
 518 #
 519 AC_DEFUN([LC_OLDSIZE_TRUNCATE_PAGECACHE], [
 520 LB_CHECK_COMPILE([if 'truncate_pagecache' with 'old_size' parameter],
 521 truncate_pagecache_old_size, [
 522         #include <linux/mm.h>
 523 ],[
 524         truncate_pagecache(NULL, 0, 0);
 525 ],[
 526         AC_DEFINE(HAVE_OLDSIZE_TRUNCATE_PAGECACHE, 1,
 527                 [with oldsize])
 528 ])
 529 ]) # LC_OLDSIZE_TRUNCATE_PAGECACHE
 530
 531 #
 532 # LC_PTR_ERR_OR_ZERO
 533 #
 534 # For some reason SLES11SP4 is missing the PTR_ERR_OR_ZERO macro
 535 # It was added to linux kernel 3.12
 536 #
 537 AC_DEFUN([LC_PTR_ERR_OR_ZERO_MISSING], [
 538 LB_CHECK_COMPILE([if 'PTR_ERR_OR_ZERO' is missing],
 539 is_err_or_null, [
 540         #include <linux/err.h>
 541 ],[
 542         if (PTR_ERR_OR_ZERO(NULL)) return 0;
 543 ],[
 544         AC_DEFINE(HAVE_PTR_ERR_OR_ZERO, 1,
 545                 ['PTR_ERR_OR_ZERO' exist])
 546 ])
 547 ]) # LC_PTR_ERR_OR_ZERO_MISSING
 548
 549 #
 550 # LC_HAVE_DENTRY_D_U_D_ALIAS
 551 #
 552 # 3.11 kernel moved d_alias to the union d_u in struct dentry
 553 #
 554 # Some distros move d_alias to d_u but it is still a struct list
 555 #
 556 AC_DEFUN([LC_HAVE_DENTRY_D_U_D_ALIAS], [
 557 AS_IF([test "x$lb_cv_compile_i_dentry_d_alias_list" = xyes], [
 558         LB_CHECK_COMPILE([if list 'dentry.d_u.d_alias' exist],
 559         d_alias, [
 560                 #include <linux/list.h>
 561                 #include <linux/dcache.h>
 562         ],[
 563                 struct dentry de;
 564                 INIT_LIST_HEAD(&de.d_u.d_alias);
 565         ],[
 566                 AC_DEFINE(HAVE_DENTRY_D_U_D_ALIAS, 1,
 567                         [list dentry.d_u.d_alias exist])
 568         ])
 569 ],[
 570         LB_CHECK_COMPILE([if hlist 'dentry.d_u.d_alias' exist],
 571         d_alias, [
 572                 #include <linux/list.h>
 573                 #include <linux/dcache.h>
 574         ],[
 575                 struct dentry de;
 576                 INIT_HLIST_NODE(&de.d_u.d_alias);
 577         ],[
 578                 AC_DEFINE(HAVE_DENTRY_D_U_D_ALIAS, 1,
 579                         [hlist dentry.d_u.d_alias exist])
 580         ])
 581 ])
 582 ]) # LC_HAVE_DENTRY_D_U_D_ALIAS
 583
 584 #
 585 # LC_HAVE_DENTRY_D_CHILD
 586 #
 587 # 3.11 kernel d_child has been moved out of the union d_u
 588 # in struct dentry
 589 #
 590 AC_DEFUN([LC_HAVE_DENTRY_D_CHILD], [
 591 LB_CHECK_COMPILE([if 'dentry.d_child' exist],
 592 d_child, [
 593         #include <linux/list.h>
 594         #include <linux/dcache.h>
 595 ],[
 596         struct dentry de;
 597         INIT_LIST_HEAD(&de.d_child);
 598 ],[
 599         AC_DEFINE(HAVE_DENTRY_D_CHILD, 1,
 600                 [dentry.d_child exist])
 601 ])
 602 ]) # LC_HAVE_DENTRY_D_CHILD
 603
 604 #
 605 # LC_KIOCB_KI_LEFT
 606 #
 607 # 3.12 ki_left removed from struct kiocb
 608 #
 609 AC_DEFUN([LC_KIOCB_KI_LEFT], [
 610 LB_CHECK_COMPILE([if 'struct kiocb' with 'ki_left' member],
 611 kiocb_ki_left, [
 612         #include <linux/aio.h>
 613 ],[
 614         ((struct kiocb*)0)->ki_left = 0;
 615 ],[
 616         AC_DEFINE(HAVE_KIOCB_KI_LEFT, 1,
 617                 [ki_left exist])
 618 ])
 619 ]) # LC_KIOCB_KI_LEFT
 620
 621 #
 622 # LC_VFS_RENAME_5ARGS
 623 #
 624 # 3.13 has vfs_rename with 5 args
 625 #
 626 AC_DEFUN([LC_VFS_RENAME_5ARGS], [
 627 LB_CHECK_COMPILE([if Linux kernel has 'vfs_rename' with 5 args],
 628 vfs_rename_5args, [
 629         #include <linux/fs.h>
 630 ],[
 631         vfs_rename(NULL, NULL, NULL, NULL, NULL);
 632 ], [
 633         AC_DEFINE(HAVE_VFS_RENAME_5ARGS, 1,
 634                 [kernel has vfs_rename with 5 args])
 635 ])
 636 ]) # LC_VFS_RENAME_5ARGS
 637
 638 #
 639 # LC_VFS_UNLINK_3ARGS
 640 #
 641 # 3.13 has vfs_unlink with 3 args
 642 #
 643 AC_DEFUN([LC_VFS_UNLINK_3ARGS], [
 644 LB_CHECK_COMPILE([if Linux kernel has 'vfs_unlink' with 3 args],
 645 vfs_unlink_3args, [
 646         #include <linux/fs.h>
 647 ],[
 648         vfs_unlink(NULL, NULL, NULL);
 649 ], [
 650         AC_DEFINE(HAVE_VFS_UNLINK_3ARGS, 1,
 651                 [kernel has vfs_unlink with 3 args])
 652 ])
 653 ]) # LC_VFS_UNLINK_3ARGS
 654
 655 # LC_HAVE_D_IS_POSITIVE
 656 #
 657 # Kernel version 3.13 b18825a7c8e37a7cf6abb97a12a6ad71af160de7
 658 # d_is_positive is added
 659 #
 660 AC_DEFUN([LC_HAVE_D_IS_POSITIVE], [
 661 LB_CHECK_COMPILE([if 'd_is_positive' exist],
 662 d_is_positive, [
 663         #include <linux/dcache.h>
 664 ],[
 665         d_is_positive(NULL);
 666 ],[
 667         AC_DEFINE(HAVE_D_IS_POSITIVE, 1,
 668                 ['d_is_positive' is available])
 669 ])
 670 ]) # LC_HAVE_D_IS_POSITIVE
 671
 672 #
 673 # LC_HAVE_BVEC_ITER
 674 #
 675 # 3.14 move some of its data in struct bio into the new
 676 # struct bvec_iter
 677 #
 678 AC_DEFUN([LC_HAVE_BVEC_ITER], [
 679 LB_CHECK_COMPILE([if Linux kernel has struct bvec_iter],
 680 have_bvec_iter, [
 681         #include <linux/bio.h>
 682 ],[
 683         struct bvec_iter iter;
 684
 685         iter.bi_bvec_done = 0;
 686 ], [
 687         AC_DEFINE(HAVE_BVEC_ITER, 1,
 688                 [kernel has struct bvec_iter])
 689 ])
 690 ]) # LC_HAVE_BVEC_ITER
 691
 692 #
 693 # LC_IOP_SET_ACL
 694 #
 695 # 3.14 adds set_acl method to inode_operations
 696 # see kernel commit 893d46e443346370cd4ea81d9d35f72952c62a37
 697 #
 698 AC_DEFUN([LC_IOP_SET_ACL], [
 699 LB_CHECK_COMPILE([if 'inode_operations' has '.set_acl' member function],
 700 inode_ops_set_acl, [
 701         #include <linux/fs.h>
 702 ],[
 703         struct inode_operations iop;
 704         iop.set_acl = NULL;
 705 ],[
 706         AC_DEFINE(HAVE_IOP_SET_ACL, 1,
 707                 [inode_operations has .set_acl member function])
 708 ])
 709 ]) # LC_IOP_SET_ACL
 710
 711 #
 712 # LC_HAVE_TRUNCATE_IPAGE_FINAL
 713 #
 714 # 3.14 bring truncate_inode_pages_final for evict_inode
 715 #
 716 AC_DEFUN([LC_HAVE_TRUNCATE_IPAGES_FINAL], [
 717 LB_CHECK_COMPILE([if Linux kernel has truncate_inode_pages_final],
 718 truncate_ipages_final, [
 719         #include <linux/mm.h>
 720 ],[
 721         truncate_inode_pages_final(NULL);
 722 ], [
 723         AC_DEFINE(HAVE_TRUNCATE_INODE_PAGES_FINAL, 1,
 724                 [kernel has truncate_inode_pages_final])
 725 ])
 726 ]) # LC_HAVE_TRUNCATE_IPAGES_FINAL
 727
 728 #
 729 # LC_IOPS_RENAME_WITH_FLAGS
 730 #
 731 # 3.14 has inode_operations->rename with 5 args
 732 # commit 520c8b16505236fc82daa352e6c5e73cd9870cff
 733 #
 734 AC_DEFUN([LC_IOPS_RENAME_WITH_FLAGS], [
 735 LB_CHECK_COMPILE([if 'inode_operations->rename' taken flags as argument],
 736 iops_rename_with_flags, [
 737         #include <linux/fs.h>
 738 ],[
 739         struct inode *i1 = NULL, *i2 = NULL;
 740         struct dentry *d1 = NULL, *d2 = NULL;
 741         int rc;
 742         rc = ((struct inode_operations *)0)->rename(i1, d1, i2, d2, 0);
 743 ], [
 744         AC_DEFINE(HAVE_IOPS_RENAME_WITH_FLAGS, 1,
 745                 [inode_operations->rename need flags as argument])
 746 ])
 747 ]) # LC_IOPS_RENAME_WITH_FLAGS
 748
 749 #
 750 # LC_VFS_RENAME_6ARGS
 751 #
 752 # 3.15 has vfs_rename with 6 args
 753 #
 754 AC_DEFUN([LC_VFS_RENAME_6ARGS], [
 755 LB_CHECK_COMPILE([if Linux kernel has 'vfs_rename' with 6 args],
 756 vfs_rename_6args, [
 757         #include <linux/fs.h>
 758 ],[
 759         vfs_rename(NULL, NULL, NULL, NULL, NULL, NULL);
 760 ], [
 761         AC_DEFINE(HAVE_VFS_RENAME_6ARGS, 1,
 762                 [kernel has vfs_rename with 6 args])
 763 ])
 764 ]) # LC_VFS_RENAME_6ARGS
 765
 766 #
 767 # LC_DIRECTIO_USE_ITER
 768 #
 769 # 3.16 kernel changes direct IO to use iov_iter
 770 #
 771 AC_DEFUN([LC_DIRECTIO_USE_ITER], [
 772 LB_CHECK_COMPILE([if direct IO uses iov_iter],
 773 direct_io_iter, [
 774         #include <linux/fs.h>
 775 ],[
 776         struct address_space_operations ops = { };
 777         struct iov_iter *iter = NULL;
 778         loff_t offset = 0;
 779
 780         ops.direct_IO(0, NULL, iter, offset);
 781 ],[
 782         AC_DEFINE(HAVE_DIRECTIO_ITER, 1,
 783                 [direct IO uses iov_iter])
 784 ])
 785 ]) # LC_DIRECTIO_USE_ITER
 786
 787 #
 788 # LC_HAVE_IOV_ITER_INIT_DIRECTION
 789 #
 790 #
 791 # 3.16 linux commit 71d8e532b1549a478e6a6a8a44f309d050294d00
 792 #      changed iov_iter_init api to start accepting a tag
 793 #      that defines if its a read or write operation
 794 #
 795 AC_DEFUN([LC_HAVE_IOV_ITER_INIT_DIRECTION], [
 796 tmp_flags="$EXTRA_KCFLAGS"
 797 EXTRA_KCFLAGS="-Werror"
 798 LB_CHECK_COMPILE([if 'iov_iter_init' takes a tag],
 799 iter_init, [
 800         #include <linux/uio.h>
 801         #include <linux/fs.h>
 802 ],[
 803         const struct iovec *iov = NULL;
 804
 805         iov_iter_init(NULL, READ, iov, 1, 0);
 806 ],[
 807         AC_DEFINE(HAVE_IOV_ITER_INIT_DIRECTION, 1,
 808                 [iov_iter_init handles directional tag])
 809 ])
 810 EXTRA_KCFLAGS="$tmp_flags"
 811 ]) # LC_HAVE_IOV_ITER_INIT_DIRECTION
 812
 813 #
 814 # LC_HAVE_IOV_ITER_TRUNCATE
 815 #
 816 #
 817 # 3.16 introduces a new API iov_iter_truncate()
 818 #
 819 AC_DEFUN([LC_HAVE_IOV_ITER_TRUNCATE], [
 820 tmp_flags="$EXTRA_KCFLAGS"
 821 EXTRA_KCFLAGS="-Werror"
 822 LB_CHECK_COMPILE([if 'iov_iter_truncate' exists ],
 823 iter_truncate, [
 824         #include <linux/uio.h>
 825         #include <linux/fs.h>
 826 ],[
 827         struct iov_iter *i = NULL;
 828
 829         iov_iter_truncate(i, 0);
 830 ],[
 831         AC_DEFINE(HAVE_IOV_ITER_TRUNCATE, 1, [iov_iter_truncate exists])
 832 ])
 833 EXTRA_KCFLAGS="$tmp_flags"
 834 ]) # LC_HAVE_IOV_ITER_TRUNCATE
 835
 836 #
 837 # LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
 838 #
 839 # 3.16 introduces [read|write]_iter to struct file_operations
 840 #
 841 AC_DEFUN([LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER], [
 842 LB_CHECK_COMPILE([if 'file_operations.[read|write]_iter' exist],
 843 file_function_iter, [
 844         #include <linux/fs.h>
 845 ],[
 846         ((struct file_operations *)NULL)->read_iter(NULL, NULL);
 847         ((struct file_operations *)NULL)->write_iter(NULL, NULL);
 848 ],[
 849         AC_DEFINE(HAVE_FILE_OPERATIONS_READ_WRITE_ITER, 1,
 850                 [file_operations.[read|write]_iter functions exist])
 851 ])
 852 ]) # LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
 853
 854 #
 855 # LC_HAVE_INTERVAL_BLK_INTEGRITY
 856 #
 857 # 3.17 replace sector_size with interval in struct blk_integrity
 858 #
 859 AC_DEFUN([LC_HAVE_INTERVAL_BLK_INTEGRITY], [
 860 LB_CHECK_COMPILE([if 'blk_integrity.interval' exist],
 861 interval_blk_integrity, [
 862         #include <linux/blkdev.h>
 863 ],[
 864         ((struct blk_integrity *)0)->interval = 0;
 865 ],[
 866         AC_DEFINE(HAVE_INTERVAL_BLK_INTEGRITY, 1,
 867                 [blk_integrity.interval exist])
 868 ])
 869 ]) # LC_HAVE_INTERVAL_BLK_INTEGRITY
 870
 871 #
 872 # LC_KEY_MATCH_DATA
 873 #
 874 # 3.17  replaces key_type::match with match_preparse
 875 #       and has new struct key_match_data
 876 #
 877 AC_DEFUN([LC_KEY_MATCH_DATA], [
 878 LB_CHECK_COMPILE([if struct key_match field exist],
 879 key_match, [
 880         #include <linux/key-type.h>
 881 ],[
 882         struct key_match_data data;
 883
 884         data.raw_data = NULL;
 885 ],[
 886         AC_DEFINE(HAVE_KEY_MATCH_DATA, 1,
 887                 [struct key_match_data exist])
 888 ])
 889 ]) # LC_KEY_MATCH_DATA
 890
 891 #
 892 # LC_NFS_FILLDIR_USE_CTX
 893 #
 894 # 3.18 kernel moved from void cookie to struct dir_context
 895 #
 896 AC_DEFUN([LC_NFS_FILLDIR_USE_CTX], [
 897 tmp_flags="$EXTRA_KCFLAGS"
 898 EXTRA_KCFLAGS="-Werror"
 899 LB_CHECK_COMPILE([if filldir_t uses struct dir_context],
 900 filldir_ctx, [
 901         #include <linux/fs.h>
 902 ],[
 903         int filldir(struct dir_context *ctx, const char* name,
 904                     int i, loff_t off, u64 tmp, unsigned temp)
 905         {
 906                 return 0;
 907         }
 908
 909         struct dir_context ctx = {
 910                 .actor = filldir,
 911         };
 912
 913         ctx.actor(NULL, "test", 0, (loff_t) 0, 0, 0);
 914 ],[
 915         AC_DEFINE(HAVE_FILLDIR_USE_CTX, 1,
 916                 [filldir_t needs struct dir_context as argument])
 917 ])
 918 EXTRA_KCFLAGS="$tmp_flags"
 919 ]) # LC_NFS_FILLDIR_USE_CTX
 920
 921 #
 922 # LC_PERCPU_COUNTER_INIT
 923 #
 924 # 3.18  For kernels 3.18 and after percpu_counter_init starts
 925 #       to pass a GFP_* memory allocation flag for internal
 926 #       memory allocation purposes.
 927 #
 928 AC_DEFUN([LC_PERCPU_COUNTER_INIT], [
 929 LB_CHECK_COMPILE([if percpu_counter_init uses GFP_* flag as argument],
 930 percpu_counter_init, [
 931         #include <linux/percpu_counter.h>
 932 ],[
 933         percpu_counter_init(NULL, 0, GFP_KERNEL);
 934 ],[
 935         AC_DEFINE(HAVE_PERCPU_COUNTER_INIT_GFP_FLAG, 1,
 936                 [percpu_counter_init uses GFP_* flag])
 937 ])
 938 ]) # LC_PERCPU_COUNTER_INIT
 939
 940 #
 941 # LC_KIOCB_HAS_NBYTES
 942 #
 943 # 3.19 kernel removed ki_nbytes from struct kiocb
 944 #
 945 AC_DEFUN([LC_KIOCB_HAS_NBYTES], [
 946 LB_CHECK_COMPILE([if struct kiocb has ki_nbytes field],
 947 ki_nbytes, [
 948         #include <linux/fs.h>
 949 ],[
 950         struct kiocb iocb = { };
 951
 952         iocb.ki_nbytes = 0;
 953 ],[
 954         AC_DEFINE(HAVE_KI_NBYTES, 1, [ki_nbytes field exist])
 955 ])
 956 ]) # LC_KIOCB_HAS_NBYTES
 957
 958 #
 959 # LC_HAVE_DQUOT_QC_DQBLK
 960 #
 961 # 3.19 has quotactl_ops->[sg]et_dqblk that take struct kqid and qc_dqblk
 962 # Added in commit 14bf61ffe
 963 #
 964 AC_DEFUN([LC_HAVE_DQUOT_QC_DQBLK], [
 965 tmp_flags="$EXTRA_KCFLAGS"
 966 EXTRA_KCFLAGS="-Werror"
 967 LB_CHECK_COMPILE([if 'quotactl_ops.set_dqblk' takes struct qc_dqblk],
 968 qc_dqblk, [
 969         #include <linux/fs.h>
 970         #include <linux/quota.h>
 971 ],[
 972         ((struct quotactl_ops *)0)->set_dqblk(NULL, *((struct kqid*)0), (struct qc_dqblk*)0);
 973 ],[
 974         AC_DEFINE(HAVE_DQUOT_QC_DQBLK, 1,
 975                 [quotactl_ops.set_dqblk takes struct qc_dqblk])
 976         AC_DEFINE(HAVE_DQUOT_KQID, 1,
 977                 [quotactl_ops.set_dqblk takes struct kqid])
 978 ])
 979 EXTRA_KCFLAGS="$tmp_flags"
 980 ]) # LC_HAVE_DQUOT_QC_DQBLK
 981
 982 #
 983 # LC_HAVE_AIO_COMPLETE
 984 #
 985 # 3.19 kernel makes aio_complete() static
 986 #
 987 AC_DEFUN([LC_HAVE_AIO_COMPLETE], [
 988 LB_CHECK_COMPILE([if kernel has exported aio_complete() ],
 989 aio_complete, [
 990         #include <linux/aio.h>
 991 ],[
 992         aio_complete(NULL, 0, 0);
 993 ],[
 994         AC_DEFINE(HAVE_AIO_COMPLETE, 1, [aio_complete defined])
 995 ])
 996 ]) # LC_HAVE_AIO_COMPLETE
 997
 998 #
 999 # LC_BACKING_DEV_INFO_REMOVAL
1000 #
1001 # 3.20 kernel removed backing_dev_info from address_space
1002 #
1003 AC_DEFUN([LC_BACKING_DEV_INFO_REMOVAL], [
1004 LB_CHECK_COMPILE([if struct address_space has backing_dev_info],
1005 backing_dev_info, [
1006         #include <linux/fs.h>
1007 ],[
1008         struct address_space mapping;
1009
1010         mapping.backing_dev_info = NULL;
1011 ],[
1012         AC_DEFINE(HAVE_BACKING_DEV_INFO, 1, [backing_dev_info exist])
1013 ])
1014 ]) # LC_BACKING_DEV_INFO_REMOVAL
1015
1016 #
1017 # LC_HAVE_BDI_CAP_MAP_COPY
1018 #
1019 # 3.20  removed mmap handling for backing devices since
1020 #       it breaks on non-MMU systems. See kernel commit
1021 #       b4caecd48005fbed3949dde6c1cb233142fd69e9
1022 #
1023 AC_DEFUN([LC_HAVE_BDI_CAP_MAP_COPY], [
1024 LB_CHECK_COMPILE([if have 'BDI_CAP_MAP_COPY'],
1025 bdi_cap_map_copy, [
1026         #include <linux/backing-dev.h>
1027 ],[
1028         struct backing_dev_info info;
1029
1030         info.capabilities = BDI_CAP_MAP_COPY;
1031 ],[
1032         AC_DEFINE(HAVE_BDI_CAP_MAP_COPY, 1,
1033                 [BDI_CAP_MAP_COPY exist])
1034 ])
1035 ]) # LC_HAVE_BDI_CAP_MAP_COPY
1036
1037 #
1038 # LC_IOV_ITER_RW
1039 #
1040 # 4.1 kernel has iov_iter_rw
1041 #
1042 AC_DEFUN([LC_IOV_ITER_RW], [
1043 LB_CHECK_COMPILE([if iov_iter_rw exist],
1044 iov_iter_rw, [
1045         #include <linux/fs.h>
1046         #include <linux/uio.h>
1047 ],[
1048         struct iov_iter *iter = NULL;
1049
1050         iov_iter_rw(iter);
1051 ],[
1052         AC_DEFINE(HAVE_IOV_ITER_RW, 1,
1053                 [iov_iter_rw exist])
1054 ])
1055 ]) # LC_IOV_ITER_RW
1056
1057 #
1058 # LC_HAVE_SYNC_READ_WRITE
1059 #
1060 # 4.1 new_sync_[read|write] no longer exported
1061 #
1062 AC_DEFUN([LC_HAVE_SYNC_READ_WRITE], [
1063 LB_CHECK_EXPORT([new_sync_read], [fs/read_write.c],
1064         [AC_DEFINE(HAVE_SYNC_READ_WRITE, 1,
1065                         [new_sync_[read|write] is exported by the kernel])])
1066 ]) # LC_HAVE_SYNC_READ_WRITE
1067
1068 #
1069 # LC_HAVE___BI_CNT
1070 #
1071 # 4.1 redefined bi_cnt as __bi_cnt in commit dac56212e8127dbc0
1072 #
1073 AC_DEFUN([LC_HAVE___BI_CNT], [
1074 LB_CHECK_COMPILE([if Linux kernel has __bi_cnt in struct bio],
1075 have___bi_cnt, [
1076         #include <asm/atomic.h>
1077         #include <linux/bio.h>
1078         #include <linux/blk_types.h>
1079 ],[
1080         struct bio bio = { };
1081         int cnt;
1082         cnt = atomic_read(&bio.__bi_cnt);
1083 ], [
1084         AC_DEFINE(HAVE___BI_CNT, 1,
1085                 [struct bio has __bi_cnt])
1086 ])
1087 ]) # LC_HAVE___BI_CNT
1088
1089 #
1090 # LC_SYMLINK_OPS_USE_NAMEIDATA
1091 #
1092 # For the 4.2+ kernels the file system internal symlink api no
1093 # longer uses struct nameidata as a argument
1094 #
1095 AC_DEFUN([LC_SYMLINK_OPS_USE_NAMEIDATA], [
1096 LB_CHECK_COMPILE([if symlink inode operations have struct nameidata argument],
1097 symlink_use_nameidata, [
1098         #include <linux/namei.h>
1099         #include <linux/fs.h>
1100 ],[
1101         struct nameidata *nd = NULL;
1102
1103         ((struct inode_operations *)0)->follow_link(NULL, nd);
1104         ((struct inode_operations *)0)->put_link(NULL, nd, NULL);
1105 ],[
1106         AC_DEFINE(HAVE_SYMLINK_OPS_USE_NAMEIDATA, 1,
1107                 [symlink inode operations need struct nameidata argument])
1108 ])
1109 ]) # LC_SYMLINK_OPS_USE_NAMEIDATA
1110
1111 #
1112 # LC_BIO_ENDIO_USES_ONE_ARG
1113 #
1114 # 4.2 kernel bio_endio now only takes one argument
1115 #
1116 AC_DEFUN([LC_BIO_ENDIO_USES_ONE_ARG], [
1117 LB_CHECK_COMPILE([if 'bio_endio' with one argument exist],
1118 bio_endio, [
1119         #include <linux/bio.h>
1120 ],[
1121         bio_endio(NULL);
1122 ],[
1123         AC_DEFINE(HAVE_BIO_ENDIO_USES_ONE_ARG, 1,
1124                 [bio_endio takes only one argument])
1125 ])
1126 ]) # LC_BIO_ENDIO_USES_ONE_ARG
1127
1128 #
1129 # LC_ACCOUNT_PAGE_DIRTIED_3ARGS
1130 #
1131 # 4.2 [to 4.5] kernel page dirtied takes 3 arguments
1132 #
1133 AC_DEFUN([LC_ACCOUNT_PAGE_DIRTIED_3ARGS], [
1134 LB_CHECK_COMPILE([if 'account_page_dirtied' with 3 args exists],
1135 account_page_dirtied, [
1136         #include <linux/mm.h>
1137 ],[
1138         account_page_dirtied(NULL, NULL, NULL);
1139 ],[
1140         AC_DEFINE(HAVE_ACCOUNT_PAGE_DIRTIED_3ARGS, 1,
1141                 [account_page_dirtied takes three arguments])
1142 ])
1143 ]) # LC_ACCOUNT_PAGE_DIRTIED_3ARGS
1144
1145 #
1146 # LC_HAVE_INTERVAL_EXP_BLK_INTEGRITY
1147 #
1148 # 4.3 replace interval with interval_exp in 'struct blk_integrity'
1149 # 'struct blk_integrity_profile' is also added in this version,
1150 # thus use this to determine whether 'struct blk_integrity' has profile
1151 #
1152 AC_DEFUN([LC_HAVE_INTERVAL_EXP_BLK_INTEGRITY], [
1153 LB_CHECK_COMPILE([if 'blk_integrity.interval_exp' exist],
1154 blk_integrity_interval_exp, [
1155         #include <linux/blkdev.h>
1156 ],[
1157         ((struct blk_integrity *)0)->interval_exp = 0;
1158 ],[
1159         AC_DEFINE(HAVE_INTERVAL_EXP_BLK_INTEGRITY, 1,
1160                 [blk_integrity.interval_exp exist])
1161 ])
1162 ]) # LC_HAVE_INTERVAL_EXP_BLK_INTEGRITY
1163
1164 #
1165 # LC_HAVE_CACHE_HEAD_HLIST
1166 #
1167 # 4.3 kernel swiched to hlist for cache_head
1168 #
1169 AC_DEFUN([LC_HAVE_CACHE_HEAD_HLIST], [
1170 LB_CHECK_COMPILE([if 'struct cache_head' has 'cache_list' field],
1171 cache_head_has_hlist, [
1172         #include <linux/sunrpc/cache.h>
1173 ],[
1174         do {} while(sizeof(((struct cache_head *)0)->cache_list));
1175 ],[
1176         AC_DEFINE(HAVE_CACHE_HEAD_HLIST, 1,
1177                 [cache_head has hlist cache_list])
1178 ])
1179 ]) # LC_HAVE_CACHE_HEAD_HLIST
1180
1181 #
1182 # LC_HAVE_XATTR_HANDLER_SIMPLIFIED
1183 #
1184 # Kernel version 4.3 commit e409de992e3ea3674393465f07cc71c948edd87a
1185 # simplified xattr_handler handling by passing in the handler pointer
1186 #
1187 AC_DEFUN([LC_HAVE_XATTR_HANDLER_SIMPLIFIED], [
1188 tmp_flags="$EXTRA_KCFLAGS"
1189 EXTRA_KCFLAGS="-Werror"
1190 LB_CHECK_COMPILE([if 'struct xattr_handler' functions pass in handler pointer],
1191 xattr_handler_simplified, [
1192         #include <linux/xattr.h>
1193 ],[
1194         struct xattr_handler handler;
1195
1196         ((struct xattr_handler *)0)->get(&handler, NULL, NULL, NULL, 0);
1197         ((struct xattr_handler *)0)->set(&handler, NULL, NULL, NULL, 0, 0);
1198 ],[
1199         AC_DEFINE(HAVE_XATTR_HANDLER_SIMPLIFIED, 1, [handler pointer is parameter])
1200 ])
1201 EXTRA_KCFLAGS="$tmp_flags"
1202 ]) # LC_HAVE_XATTR_HANDLER_SIMPLIFIED
1203
1204 #
1205 # LC_HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD
1206 #
1207 # 4.3 replace interval with interval_exp in 'struct blk_integrity'.
1208 #
1209 AC_DEFUN([LC_HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD], [
1210 LB_CHECK_COMPILE([if 'bio_integrity_payload.bip_iter' exist],
1211 bio_integrity_payload_bip_iter, [
1212         #include <linux/bio.h>
1213 ],[
1214         ((struct bio_integrity_payload *)0)->bip_iter.bi_size = 0;
1215 ],[
1216         AC_DEFINE(HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD, 1,
1217                 [bio_integrity_payload.bip_iter exist])
1218 ])
1219 ]) # LC_HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD
1220
1221 #
1222 # LC_BIO_INTEGRITY_PREP_FN
1223 #
1224 # Lustre kernel patch extents bio_integrity_prep to accept optional
1225 # generate/verify_fn as extra args.
1226 #
1227 AC_DEFUN([LC_BIO_INTEGRITY_PREP_FN], [
1228 LB_CHECK_COMPILE([if 'bio_integrity_prep_fn' exists],
1229 bio_integrity_prep_fn, [
1230         #include <linux/bio.h>
1231 ],[
1232         bio_integrity_prep_fn(NULL, NULL, NULL);
1233 ],[
1234         AC_DEFINE(HAVE_BIO_INTEGRITY_PREP_FN, 1,
1235                 [kernel has bio_integrity_prep_fn])
1236         AC_SUBST(PATCHED_INTEGRITY_INTF)
1237 ],[
1238         AC_SUBST(PATCHED_INTEGRITY_INTF, [#])
1239 ])
1240 ]) # LC_BIO_INTEGRITY_PREP_FN
1241
1242 #
1243 # LC_HAVE_BI_OPF
1244 #
1245 # 4.4/4.8 redefined bi_rw as bi_opf (SLES12/kernel commit 4382e33ad37486)
1246 #
1247 AC_DEFUN([LC_HAVE_BI_OPF], [
1248 LB_CHECK_COMPILE([if Linux kernel has bi_opf in struct bio],
1249 have_bi_opf, [
1250         #include <linux/bio.h>
1251 ],[
1252         struct bio bio;
1253
1254         bio.bi_opf = 0;
1255 ], [
1256         AC_DEFINE(HAVE_BI_OPF, 1,
1257                 [struct bio has bi_opf])
1258 ])
1259 ]) # LC_HAVE_BI_OPF
1260
1261 #
1262 # LC_HAVE_SUBMIT_BIO_2ARGS
1263 #
1264 # 4.4 removed an argument from submit_bio
1265 #
1266 AC_DEFUN([LC_HAVE_SUBMIT_BIO_2ARGS], [
1267 LB_CHECK_COMPILE([if submit_bio takes two arguments],
1268 have_submit_bio_2args, [
1269         #include <linux/bio.h>
1270 ],[
1271         struct bio bio;
1272         submit_bio(READ, &bio);
1273 ], [
1274         AC_DEFINE(HAVE_SUBMIT_BIO_2ARGS, 1,
1275                 [submit_bio takes two arguments])
1276 ])
1277 ]) # LC_HAVE_SUBMIT_BIO_2_ARGS
1278
1279 #
1280 # LC_HAVE_CLEAN_BDEV_ALIASES
1281 #
1282 # 4.4/4.9 unmap_underlying_metadata was replaced by clean_bdev_aliases
1283 # (SLES12/kernel commit 29f3ad7d8380364c)
1284 #
1285 AC_DEFUN([LC_HAVE_CLEAN_BDEV_ALIASES], [
1286 LB_CHECK_COMPILE([if kernel has clean_bdev_aliases],
1287 have_clean_bdev_aliases, [
1288         #include <linux/buffer_head.h>
1289 ],[
1290         clean_bdev_aliases(NULL,1,1);
1291 ], [
1292         AC_DEFINE(HAVE_CLEAN_BDEV_ALIASES, 1,
1293                 [kernel has clean_bdev_aliases])
1294 ])
1295 ]) # LC_HAVE_CLEAN_BDEV_ALIASES
1296
1297 #
1298 # LC_HAVE_LOCKS_LOCK_FILE_WAIT
1299 #
1300 # 4.4 kernel have moved locks API users to
1301 # locks_lock_inode_wait()
1302 #
1303 AC_DEFUN([LC_HAVE_LOCKS_LOCK_FILE_WAIT], [
1304 LB_CHECK_COMPILE([if 'locks_lock_file_wait' exists],
1305 locks_lock_file_wait, [
1306         #include <linux/fs.h>
1307 ],[
1308         locks_lock_file_wait(NULL, NULL);
1309 ],[
1310         AC_DEFINE(HAVE_LOCKS_LOCK_FILE_WAIT, 1,
1311                 [kernel has locks_lock_file_wait])
1312 ])
1313 ]) # LC_HAVE_LOCKS_LOCK_FILE_WAIT
1314
1315 #
1316 # LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
1317 #
1318 # 4.4 kernel merged type-specific data with the payload data for keys
1319 #
1320 AC_DEFUN([LC_HAVE_KEY_PAYLOAD_DATA_ARRAY], [
1321 LB_CHECK_COMPILE([if 'struct key' has 'payload.data' as an array],
1322 key_payload_data_array, [
1323         #include <linux/key.h>
1324 ],[
1325         struct key key = { };
1326
1327         key.payload.data[0] = NULL;
1328 ],[
1329         AC_DEFINE(HAVE_KEY_PAYLOAD_DATA_ARRAY, 1, [payload.data is an array])
1330 ])
1331 ]) #LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
1332
1333 #
1334 # LC_HAVE_XATTR_HANDLER_NAME
1335 #
1336 # Kernel version 4.4 commit 98e9cb5711c68223f0e4d5201b9a6add255ec550
1337 # add a name member to struct xattr_handler
1338 #
1339 AC_DEFUN([LC_HAVE_XATTR_HANDLER_NAME], [
1340 tmp_flags="$EXTRA_KCFLAGS"
1341 EXTRA_KCFLAGS="-Werror"
1342 LB_CHECK_COMPILE([if 'struct xattr_handler' has a name member],
1343 xattr_handler_name, [
1344         #include <linux/xattr.h>
1345 ],[
1346         ((struct xattr_handler *)NULL)->name = NULL;
1347 ],[
1348         AC_DEFINE(HAVE_XATTR_HANDLER_NAME, 1, [xattr_handler has a name member])
1349 ])
1350 EXTRA_KCFLAGS="$tmp_flags"
1351 ]) # LC_HAVE_XATTR_HANDLER_NAME
1352
1353 #
1354 # LC_HAVE_FILE_DENTRY
1355 #
1356 # 4.5 adds wrapper file_dentry
1357 #
1358 AC_DEFUN([LC_HAVE_FILE_DENTRY], [
1359 LB_CHECK_COMPILE([if Linux kernel has 'file_dentry'],
1360 file_dentry, [
1361         #include <linux/fs.h>
1362 ],[
1363         file_dentry(NULL);
1364 ], [
1365         AC_DEFINE(HAVE_FILE_DENTRY, 1,
1366                 [kernel has file_dentry])
1367 ])
1368 ]) # LC_HAVE_FILE_DENTRY
1369
1370 #
1371 # LC_HAVE_INODE_LOCK
1372 #
1373 # 4.5 introduced inode_lock
1374 #
1375 AC_DEFUN([LC_HAVE_INODE_LOCK], [
1376 LB_CHECK_COMPILE([if 'inode_lock' is defined],
1377 inode_lock, [
1378         #include <linux/fs.h>
1379 ],[
1380         inode_lock(NULL);
1381 ], [
1382         AC_DEFINE(HAVE_INODE_LOCK, 1,
1383                   [inode_lock is defined])
1384 ])
1385 ]) # LC_HAVE_INODE_LOCK
1386
1387 #
1388 # LC_HAVE_IOP_GET_LINK
1389 #
1390 # 4.5 vfs replaced iop->follow_link with
1391 # iop->get_link
1392 #
1393 AC_DEFUN([LC_HAVE_IOP_GET_LINK], [
1394 LB_CHECK_COMPILE([if 'iop' has 'get_link'],
1395 inode_ops_get_link, [
1396         #include <linux/fs.h>
1397 ],[
1398         struct inode_operations iop;
1399         iop.get_link = NULL;
1400 ],[
1401         AC_DEFINE(HAVE_IOP_GET_LINK, 1,
1402                 [have iop get_link])
1403 ])
1404 ]) # LC_HAVE_IOP_GET_LINK
1405
1406 #
1407 # LC_HAVE_IN_COMPAT_SYSCALL
1408 #
1409 # 4.6 renamed is_compat_task to in_compat_syscall
1410 #
1411 AC_DEFUN([LC_HAVE_IN_COMPAT_SYSCALL], [
1412 LB_CHECK_COMPILE([if 'in_compat_syscall' is defined],
1413 in_compat_syscall, [
1414         #include <linux/compat.h>
1415 ],[
1416         in_compat_syscall();
1417 ],[
1418         AC_DEFINE(HAVE_IN_COMPAT_SYSCALL, 1,
1419                 [have in_compat_syscall])
1420 ])
1421 ]) # LC_HAVE_IN_COMPAT_SYSCALL
1422
1423 #
1424 # LC_HAVE_XATTR_HANDLER_INODE_PARAM
1425 #
1426 # Kernel version 4.6 commit b296821a7c42fa58baa17513b2b7b30ae66f3336
1427 # and commit 5930122683dff58f0846b0f0405b4bd598a3ba6a added inode parameter
1428 # to xattr_handler functions
1429 #
1430 AC_DEFUN([LC_HAVE_XATTR_HANDLER_INODE_PARAM], [
1431 tmp_flags="$EXTRA_KCFLAGS"
1432 EXTRA_KCFLAGS="-Werror"
1433 LB_CHECK_COMPILE([if 'struct xattr_handler' functions have inode parameter],
1434 xattr_handler_inode_param, [
1435         #include <linux/xattr.h>
1436 ],[
1437         const struct xattr_handler handler;
1438
1439         ((struct xattr_handler *)0)->get(&handler, NULL, NULL, NULL, NULL, 0);
1440         ((struct xattr_handler *)0)->set(&handler, NULL, NULL, NULL, NULL, 0, 0);
1441 ],[
1442         AC_DEFINE(HAVE_XATTR_HANDLER_INODE_PARAM, 1, [needs inode parameter])
1443 ])
1444 EXTRA_KCFLAGS="$tmp_flags"
1445 ]) # LC_HAVE_XATTR_HANDLER_INODE_PARAM
1446
1447 #
1448 # LC_D_IN_LOOKUP
1449 #
1450 # Kernel version 4.6 commit 85c7f81041d57cfe9dc97f4680d5586b54534a39
1451 # introduced parallel lookups in the VFS layer. The inline function
1452 # d_in_lookup was added to notify when the same item was being queried
1453 # at the same time.
1454 #
1455 AC_DEFUN([LC_D_IN_LOOKUP], [
1456 tmp_flags="$EXTRA_KCFLAGS"
1457 EXTRA_KCFLAGS="-Werror"
1458 LB_CHECK_COMPILE([if 'd_in_lookup' is defined],
1459 d_in_lookup, [
1460         #include <linux/dcache.h>
1461 ],[
1462         d_in_lookup(NULL);
1463 ],[
1464         AC_DEFINE(HAVE_D_IN_LOOKUP, 1, [d_in_lookup is defined])
1465 ])
1466 EXTRA_KCFLAGS="$tmp_flags"
1467 ]) # LC_D_IN_LOOKUP
1468
1469 #
1470 # LC_LOCK_PAGE_MEMCG
1471 #
1472 # Kernel version 4.6 adds lock_page_memcg
1473 #
1474 AC_DEFUN([LC_LOCK_PAGE_MEMCG], [
1475 LB_CHECK_COMPILE([if 'lock_page_memcg' is defined],
1476 lock_page_memcg, [
1477         #include <linux/memcontrol.h>
1478 ],[
1479         lock_page_memcg(NULL);
1480 ],[
1481         AC_DEFINE(HAVE_LOCK_PAGE_MEMCG, 1,
1482                 [lock_page_memcg is defined])
1483 ])
1484 ]) # LC_LOCK_PAGE_MEMCG
1485
1486 #
1487 # LC_DIRECTIO_2ARGS
1488 #
1489 # Kernel version 4.7 commit c8b8e32d700fe943a935e435ae251364d016c497
1490 # direct-io: eliminate the offset argument to ->direct_IO
1491 #
1492 AC_DEFUN([LC_DIRECTIO_2ARGS], [
1493 LB_CHECK_COMPILE([if '->direct_IO()' taken 2 arguments],
1494 direct_io_2args, [
1495         #include <linux/fs.h>
1496 ],[
1497         struct address_space_operations ops = { };
1498         struct iov_iter *iter = NULL;
1499         struct kiocb *iocb = NULL;
1500         int rc;
1501
1502         rc = ops.direct_IO(iocb, iter);
1503 ],[
1504         AC_DEFINE(HAVE_DIRECTIO_2ARGS, 1,
1505                 [direct_IO need 2 arguments])
1506 ])
1507 ]) # LC_DIRECTIO_2ARGS
1508
1509 #
1510 # LC_GENERIC_WRITE_SYNC_2ARGS
1511 #
1512 # Kernel version 4.7 commit dde0c2e79848298cc25621ad080d47f94dbd7cce
1513 # fs: add IOCB_SYNC and IOCB_DSYNC
1514 #
1515 AC_DEFUN([LC_GENERIC_WRITE_SYNC_2ARGS], [
1516 LB_CHECK_COMPILE([if 'generic_write_sync()' taken 2 arguments],
1517 generic_write_sync_2args, [
1518         #include <linux/fs.h>
1519 ],[
1520         struct kiocb *iocb = NULL;
1521         ssize_t rc;
1522
1523         rc = generic_write_sync(iocb, 0);
1524 ],[
1525         AC_DEFINE(HAVE_GENERIC_WRITE_SYNC_2ARGS, 1,
1526                 [generic_write_sync need 2 arguments])
1527 ])
1528 ]) # LC_GENERIC_WRITE_SYNC_2ARGS
1529
1530 #
1531 # LC_FOP_ITERATE_SHARED
1532 #
1533 # Kernel v4.6-rc3-29-g6192269 adds iterate_shared method to file_operations
1534 #
1535 AC_DEFUN([LC_FOP_ITERATE_SHARED], [
1536 LB_CHECK_COMPILE([if 'file_operations' has 'iterate_shared'],
1537 fop_iterate_shared, [
1538         #include <linux/fs.h>
1539 ],[
1540         struct file_operations fop;
1541         fop.iterate_shared = NULL;
1542 ],[
1543         AC_DEFINE(HAVE_FOP_ITERATE_SHARED, 1,
1544                 [file_operations has iterate_shared])
1545 ])
1546 ]) # LC_FOP_ITERATE_SHARED
1547
1548 #
1549 # LC_EXPORT_DEFAULT_FILE_SPLICE_READ
1550 #
1551 # 4.8-rc8 commit 82c156f853840645604acd7c2cebcb75ed1b6652 switched
1552 # generic_file_splice_read() to using ->read_iter. We can test this
1553 # change since default_file_splice_read() is no longer exported.
1554 #
1555 AC_DEFUN([LC_EXPORT_DEFAULT_FILE_SPLICE_READ], [
1556 LB_CHECK_EXPORT([default_file_splice_read], [fs/splice.c],
1557         [AC_DEFINE(HAVE_DEFAULT_FILE_SPLICE_READ_EXPORT, 1,
1558                         [default_file_splice_read is exported])])
1559 ]) # LC_EXPORT_DEFAULT_FILE_SPLCE_READ
1560
1561 #
1562 # LC_HAVE_POSIX_ACL_VALID_USER_NS
1563 #
1564 # 4.8 posix_acl_valid takes struct user_namespace
1565 #
1566 AC_DEFUN([LC_HAVE_POSIX_ACL_VALID_USER_NS], [
1567 LB_CHECK_COMPILE([if 'posix_acl_valid' takes 'struct user_namespace'],
1568 posix_acl_valid, [
1569         #include <linux/fs.h>
1570         #include <linux/posix_acl.h>
1571 ],[
1572         posix_acl_valid((struct user_namespace*)NULL, (const struct posix_acl*)NULL);
1573 ],[
1574         AC_DEFINE(HAVE_POSIX_ACL_VALID_USER_NS, 1,
1575                 [posix_acl_valid takes struct user_namespace])
1576 ])
1577 ]) # LC_HAVE_POSIX_ACL_VALID_USER_NS
1578
1579 #
1580 # LC_D_COMPARE_4ARGS
1581 #
1582 # Kernel version 4.8 commit 6fa67e707559303e086303aeecc9e8b91ef497d5
1583 # get rid of 'parent' argument of ->d_compare()
1584 #
1585 AC_DEFUN([LC_D_COMPARE_4ARGS], [
1586 LB_CHECK_COMPILE([if 'd_compare' taken 4 arguments],
1587 d_compare_4args, [
1588         #include <linux/dcache.h>
1589 ],[
1590         ((struct dentry_operations*)0)->d_compare(NULL,0,NULL,NULL);
1591 ],[
1592         AC_DEFINE(HAVE_D_COMPARE_4ARGS, 1,
1593                 [d_compare need 4 arguments])
1594 ])
1595 ]) # LC_D_COMPARE_4ARGS
1596
1597 #
1598 # LC_FULL_NAME_HASH_3ARGS
1599 #
1600 # Kernel version 4.8 commit 8387ff2577eb9ed245df9a39947f66976c6bcd02
1601 # vfs: make the string hashes salt the hash
1602 #
1603 AC_DEFUN([LC_FULL_NAME_HASH_3ARGS], [
1604 LB_CHECK_COMPILE([if 'full_name_hash' taken 3 arguments],
1605 full_name_hash_3args, [
1606         #include <linux/stringhash.h>
1607 ],[
1608         unsigned int hash;
1609         hash = full_name_hash(NULL,NULL,0);
1610 ],[
1611         AC_DEFINE(HAVE_FULL_NAME_HASH_3ARGS, 1,
1612                 [full_name_hash need 3 arguments])
1613 ])
1614 ]) # LC_FULL_NAME_HASH_3ARGS
1615
1616 #
1617 # LC_STRUCT_POSIX_ACL_XATTR
1618 #
1619 # Kernel version 4.8 commit 2211d5ba5c6c4e972ba6dbc912b2897425ea6621
1620 # posix_acl: xattr representation cleanups
1621 #
1622 AC_DEFUN([LC_STRUCT_POSIX_ACL_XATTR], [
1623 LB_CHECK_COMPILE([if 'struct posix_acl_xattr_{header,entry}' defined],
1624 struct_posix_acl_xattr, [
1625         #include <linux/fs.h>
1626         #include <linux/posix_acl_xattr.h>
1627 ],[
1628         struct posix_acl_xattr_header *h = NULL;
1629         struct posix_acl_xattr_entry  *e;
1630         e = (void *)(h + 1);
1631 ],[
1632         AC_DEFINE(HAVE_STRUCT_POSIX_ACL_XATTR, 1,
1633                 [struct posix_acl_xattr_{header,entry} defined])
1634 ])
1635 ]) # LC_STRUCT_POSIX_ACL_XATTR
1636
1637 #
1638 # LC_IOP_XATTR
1639 #
1640 # Kernel version 4.8 commit fd50ecaddf8372a1d96e0daeaac0f93cf04e4d42
1641 # removed {get,set,remove}xattr inode operations
1642 #
1643 AC_DEFUN([LC_IOP_XATTR], [
1644 LB_CHECK_COMPILE([if 'inode_operations' has {get,set,remove}xattr members],
1645 inode_ops_xattr, [
1646         #include <linux/fs.h>
1647 ],[
1648         struct inode_operations iop;
1649         iop.setxattr = NULL;
1650         iop.getxattr = NULL;
1651         iop.removexattr = NULL;
1652 ],[
1653         AC_DEFINE(HAVE_IOP_XATTR, 1,
1654                 [inode_operations has {get,set,remove}xattr members])
1655 ])
1656 ]) # LC_IOP_XATTR
1657
1658 #
1659 # LC_GROUP_INFO_GID
1660 #
1661 # Kernel version 4.9 commit 81243eacfa400f5f7b89f4c2323d0de9982bb0fb
1662 # cred: simpler, 1D supplementary groups
1663 #
1664 AC_DEFUN([LC_GROUP_INFO_GID], [
1665 LB_CHECK_COMPILE([if 'struct group_info' has member 'gid'],
1666 group_info_gid, [
1667         #include <linux/cred.h>
1668 ],[
1669         kgid_t *p;
1670         p = ((struct group_info *)0)->gid;
1671 ],[
1672         AC_DEFINE(HAVE_GROUP_INFO_GID, 1,
1673                 [struct group_info has member gid])
1674 ])
1675 ]) # LC_GROUP_INFO_GID
1676
1677 #
1678 # LC_VFS_SETXATTR
1679 #
1680 # Kernel version 4.9 commit 5d6c31910bc0713e37628dc0ce677dcb13c8ccf4
1681 # added __vfs_{get,set,remove}xattr helpers
1682 #
1683 AC_DEFUN([LC_VFS_SETXATTR], [
1684 LB_CHECK_COMPILE([if '__vfs_setxattr' helper is available],
1685 vfs_setxattr, [
1686         #include <linux/xattr.h>
1687 ],[
1688         __vfs_setxattr(NULL, NULL, NULL, NULL, 0, 0);
1689 ],[
1690         AC_DEFINE(HAVE_VFS_SETXATTR, 1,
1691                 ['__vfs_setxattr is available])
1692 ])
1693 ]) # LC_VFS_SETXATTR
1694
1695 #
1696 # LC_POSIX_ACL_UPDATE_MODE
1697 #
1698 # Kernel version 4.9 commit 073931017b49d9458aa351605b43a7e34598caef
1699 # posix_acl: Clear SGID bit when setting file permissions
1700 #
1701 AC_DEFUN([LC_POSIX_ACL_UPDATE_MODE], [
1702 LB_CHECK_COMPILE([if 'posix_acl_update_mode' exists],
1703 posix_acl_update_mode, [
1704         #include <linux/fs.h>
1705         #include <linux/posix_acl.h>
1706 ],[
1707         posix_acl_update_mode(NULL, NULL, NULL);
1708 ],[
1709         AC_DEFINE(HAVE_POSIX_ACL_UPDATE_MODE, 1,
1710                 ['posix_acl_update_mode' is available])
1711 ])
1712 ]) # LC_POSIX_ACL_UPDATE_MODE
1713
1714 #
1715 # LC_IOP_GENERIC_READLINK
1716 #
1717 # Kernel version 4.10 commit dfeef68862edd7d4bafe68ef7aeb5f658ef24bb5
1718 # removed generic_readlink from individual file systems
1719 #
1720 AC_DEFUN([LC_IOP_GENERIC_READLINK], [
1721 LB_CHECK_COMPILE([if 'generic_readlink' still exist],
1722 inode_ops_readlink, [
1723         #include <linux/fs.h>
1724 ],[
1725         struct inode_operations iop;
1726         iop.readlink = generic_readlink;
1727 ],[
1728         AC_DEFINE(HAVE_IOP_GENERIC_READLINK, 1,
1729                 [generic_readlink has been removed])
1730 ])
1731 ]) # LC_IOP_GENERIC_READLINK
1732
1733 #
1734 # LC_HAVE_VM_FAULT_ADDRESS
1735 #
1736 # Kernel version 4.10 commit 1a29d85eb0f19b7d8271923d8917d7b4f5540b3e
1737 # removed virtual_address field. Need to use address field instead
1738 #
1739 AC_DEFUN([LC_HAVE_VM_FAULT_ADDRESS], [
1740 LB_CHECK_COMPILE([if 'struct vm_fault' replaced virtual_address with address field],
1741 vm_fault_address, [
1742         #include <linux/mm.h>
1743 ],[
1744         struct vm_fault vmf;
1745         vmf.address = NULL;
1746 ],[
1747         AC_DEFINE(HAVE_VM_FAULT_ADDRESS, 1,
1748                 [virtual_address has been replaced by address field])
1749 ])
1750 ]) # LC_HAVE_VM_FAULT_ADDRESS
1751
1752 #
1753 # LC_INODEOPS_ENHANCED_GETATTR
1754 #
1755 # Kernel version 4.11 commit a528d35e8bfcc521d7cb70aaf03e1bd296c8493f
1756 # expanded getattr to be able to get more stat information.
1757 #
1758 AC_DEFUN([LC_INODEOPS_ENHANCED_GETATTR], [
1759 LB_CHECK_COMPILE([if 'inode_operations' getattr member can gather advance stats],
1760 getattr_path, [
1761         #include <linux/fs.h>
1762 ],[
1763         struct path path;
1764
1765         ((struct inode_operations *)1)->getattr(&path, NULL, 0, 0);
1766 ],[
1767         AC_DEFINE(HAVE_INODEOPS_ENHANCED_GETATTR, 1,
1768                 [inode_operations .getattr member function can gather advance stats])
1769 ])
1770 ]) # LC_INODEOPS_ENHANCED_GETATTR
1771
1772 #
1773 # LC_VM_OPERATIONS_REMOVE_VMF_ARG
1774 #
1775 # Kernel version 4.11 commit 11bac80004499ea59f361ef2a5516c84b6eab675
1776 # removed struct vm_area_struct as an argument for vm_operations since
1777 # in the same kernel version struct vma_area_struct was folded into
1778 # struct vm_fault.
1779 #
1780 AC_DEFUN([LC_VM_OPERATIONS_REMOVE_VMF_ARG], [
1781 LB_CHECK_COMPILE([if 'struct vm_operations' removed struct vm_area_struct],
1782 vm_operations_no_vm_area_struct, [
1783         #include <linux/mm.h>
1784 ],[
1785         struct vm_fault vmf;
1786
1787         ((struct vm_operations_struct *)0)->fault(&vmf);
1788         ((struct vm_operations_struct *)0)->page_mkwrite(&vmf);
1789 ],[
1790         AC_DEFINE(HAVE_VM_OPS_USE_VM_FAULT_ONLY, 1,
1791                 ['struct vm_operations' remove struct vm_area_struct argument])
1792 ])
1793 ]) # LC_VM_OPERATIONS_REMOVE_VMF_ARG
1794
1795 #
1796 # LC_HAVE_KEY_USAGE_REFCOUNT
1797 #
1798 # Kernel version 4.11 commit fff292914d3a2f1efd05ca71c2ba72a3c663201e
1799 # converted key.usage from atomic_t to refcount_t.
1800 #
1801 AC_DEFUN([LC_HAVE_KEY_USAGE_REFCOUNT], [
1802 LB_CHECK_COMPILE([if 'key.usage' is refcount_t],
1803 key_usage_refcount, [
1804         #include <linux/key.h>
1805 ],[
1806         struct key key = { };
1807
1808         refcount_read(&key.usage);
1809 ],[
1810         AC_DEFINE(HAVE_KEY_USAGE_REFCOUNT, 1, [key.usage is of type refcount_t])
1811 ])
1812 ]) #LC_HAVE_KEY_USAGE_REFCOUNT
1813
1814 #
1815 # LC_HAVE_CRYPTO_MAX_ALG_NAME_128
1816 #
1817 # Kernel version 4.11 commit f437a3f477cce402dbec6537b29e9e33962c9f73
1818 # switched CRYPTO_MAX_ALG_NAME from 64 to 128.
1819 #
1820 AC_DEFUN([LC_HAVE_CRYPTO_MAX_ALG_NAME_128], [
1821 LB_CHECK_COMPILE([if 'CRYPTO_MAX_ALG_NAME' is 128],
1822 crypto_max_alg_name, [
1823         #include <linux/crypto.h>
1824 ],[
1825         #if CRYPTO_MAX_ALG_NAME != 128
1826         exit(1);
1827         #endif
1828 ],[
1829         AC_DEFINE(HAVE_CRYPTO_MAX_ALG_NAME_128, 1,
1830                 ['CRYPTO_MAX_ALG_NAME' is 128])
1831 ])
1832 ]) # LC_HAVE_CRYPTO_MAX_ALG_NAME_128
1833
1834 #
1835 # Kernel version 4.12 commit 47f38c539e9a42344ff5a664942075bd4df93876
1836 # CURRENT_TIME is not 64 bit time safe so it was replaced with
1837 # current_time()
1838 #
1839 AC_DEFUN([LC_CURRENT_TIME], [
1840 LB_CHECK_COMPILE([if CURRENT_TIME has been replaced with current_time],
1841 current_time, [
1842         #include <linux/fs.h>
1843 ],[
1844         struct iattr attr;
1845
1846         attr.ia_atime = current_time(NULL);
1847 ],[
1848         AC_DEFINE(HAVE_CURRENT_TIME, 1,
1849                 [current_time() has replaced CURRENT_TIME])
1850 ])
1851 ]) # LIBCFS_CURRENT_TIME
1852
1853 #
1854 # Kernel version 4.12-rc3 85787090a21eb749d8b347eaf9ff1a455637473c
1855 # changed struct super_block s_uuid into a proper uuid_t
1856 #
1857 AC_DEFUN([LC_SUPER_BLOCK_S_UUID], [
1858 LB_CHECK_COMPILE([if 'struct super_block' s_uuid is uuid_t],
1859 super_block_s_uuid, [
1860         #include <linux/fs.h>
1861 ],[
1862         struct super_block sb;
1863
1864         uuid_parse(NULL, &sb.s_uuid);
1865 ],[
1866         AC_DEFINE(HAVE_S_UUID_AS_UUID_T, 1, ['s_uuid' is an uuid_t])
1867 ])
1868 ]) # LC_SUPER_BLOCK_S_UUID
1869
1870 #
1871 # LC_SUPER_SETUP_BDI_NAME
1872 #
1873 # Kernel version 4.12 commit 9594caf216dc0fe3e318b34af0127276db661241
1874 # unified bdi handling
1875 #
1876 AC_DEFUN([LC_SUPER_SETUP_BDI_NAME], [
1877 LB_CHECK_COMPILE([if 'super_setup_bdi_name' exist],
1878 super_setup_bdi_name, [
1879         #include <linux/fs.h>
1880 ],[
1881         super_setup_bdi_name(NULL, "lustre");
1882 ],[
1883         AC_DEFINE(HAVE_SUPER_SETUP_BDI_NAME, 1,
1884                 ['super_setup_bdi_name' is available])
1885 ])
1886 ]) # LC_SUPER_SETUP_BDI_NAME
1887
1888 #
1889 # LC_BI_STATUS
1890 #
1891 # 4.12 replace bi_error to bi_status
1892 #
1893 AC_DEFUN([LC_BI_STATUS], [
1894 LB_CHECK_COMPILE([if 'bi_status' exist],
1895 bi_status, [
1896         #include <linux/blk_types.h>
1897 ],[
1898         ((struct bio *)0)->bi_status = 0;
1899 ],[
1900         AC_DEFINE(HAVE_BI_STATUS, 1,
1901                 ['bi_status' is available])
1902 ])
1903 ]) # LC_BI_STATUS
1904
1905 #
1906 # LC_BIO_INTEGRITY_ENABLED
1907 #
1908 # 4.13 removed bio_integrity_enabled
1909 #
1910 AC_DEFUN([LC_BIO_INTEGRITY_ENABLED], [
1911 LB_CHECK_COMPILE([if 'bio_integrity_enabled' exist],
1912 bio_integrity_enabled, [
1913         #include <linux/bio.h>
1914 ],[
1915         bio_integrity_enabled(NULL);
1916 ],[
1917         AC_DEFINE(HAVE_BIO_INTEGRITY_ENABLED, 1,
1918                 ['bio_integrity_enabled' is available])
1919 ])
1920 ]) # LC_BIO_INTEGRITY_ENABLED
1921
1922 #
1923 # LC_PAGEVEC_INIT_ONE_PARAM
1924 #
1925 # 4.14 pagevec_init takes one parameter
1926 #
1927 AC_DEFUN([LC_PAGEVEC_INIT_ONE_PARAM], [
1928 LB_CHECK_COMPILE([if 'pagevec_init' takes one parameter],
1929 pagevec_init, [
1930         #include <linux/pagevec.h>
1931 ],[
1932         pagevec_init(NULL);
1933 ],[
1934         AC_DEFINE(HAVE_PAGEVEC_INIT_ONE_PARAM, 1,
1935                 ['pagevec_init' takes one parameter])
1936 ])
1937 ]) # LC_PAGEVEC_INIT_ONE_PARAM
1938
1939 #
1940 # LC_BI_BDEV
1941 #
1942 # 4.14 replaced bi_bdev to bi_disk
1943 #
1944 AC_DEFUN([LC_BI_BDEV], [
1945 LB_CHECK_COMPILE([if 'bi_bdev' exist],
1946 bi_bdev, [
1947         #include <linux/bio.h>
1948 ],[
1949         ((struct bio *)0)->bi_bdev = NULL;
1950 ],[
1951         AC_DEFINE(HAVE_BI_BDEV, 1,
1952                 ['bi_bdev' is available])
1953 ])
1954 ]) # LC_BI_BDEV
1955
1956 #
1957 # LC_IS_ENCRYPTED
1958 #
1959 # 4.14 introduced IS_ENCRYPTED and S_ENCRYPTED
1960 #
1961 AC_DEFUN([LC_IS_ENCRYPTED], [
1962 LB_CHECK_COMPILE([if IS_ENCRYPTED is defined],
1963 is_encrypted, [
1964         #include <linux/fs.h>
1965 ],[
1966         IS_ENCRYPTED((struct inode *)0);
1967 ],[
1968         has_is_encrypted="yes"
1969 ])
1970 ]) # LC_IS_ENCRYPTED
1971
1972 #
1973 # LC_I_PAGES
1974 #
1975 # kernel 4.17 commit b93b016313b3ba8003c3b8bb71f569af91f19fc7
1976 #
1977 AC_DEFUN([LC_I_PAGES], [
1978 LB_CHECK_COMPILE([if struct address_space has i_pages],
1979 i_pages, [
1980         #include <linux/fs.h>
1981 ],[
1982         struct address_space mapping = {};
1983         void *i_pages;
1984
1985         i_pages = &mapping.i_pages;
1986 ],[
1987         AC_DEFINE(HAVE_I_PAGES, 1,
1988                 [struct address_space has i_pages])
1989 ])
1990 ]) # LC_I_PAGES
1991
1992 #
1993 # LC_VM_FAULT_T
1994 #
1995 # kernel 4.17 commit 3d3539018d2cbd12e5af4a132636ee7fd8d43ef0
1996 # mm: create the new vm_fault_t type
1997 #
1998 AC_DEFUN([LC_VM_FAULT_T], [
1999 LB_CHECK_COMPILE([if vm_fault_t type exists],
2000 vm_fault_t, [
2001         #include <linux/mm_types.h>
2002 ],[
2003         vm_fault_t x = VM_FAULT_SIGBUS;
2004         (void)x
2005 ],[
2006         AC_DEFINE(HAVE_VM_FAULT_T, 1,
2007                 [if vm_fault_t type exists])
2008 ])
2009 ]) # LC_VM_FAULT_T
2010
2011 #
2012 # LC_VM_FAULT_RETRY
2013 #
2014 # kernel 4.17 commit 3d3539018d2cbd12e5af4a132636ee7fd8d43ef0
2015 # mm: VM_FAULT_RETRY is defined in enum vm_fault_reason
2016 #
2017 AC_DEFUN([LC_VM_FAULT_RETRY], [
2018 LB_CHECK_COMPILE([if VM_FAULT_RETRY is defined],
2019 VM_FAULT_RETRY, [
2020         #include <linux/mm.h>
2021 ],[
2022         #ifndef VM_FAULT_RETRY
2023                 vm_fault_t x;
2024                 x = VM_FAULT_RETRY;
2025         #endif
2026 ],[
2027         AC_DEFINE(HAVE_VM_FAULT_RETRY, 1,
2028                 [if VM_FAULT_RETRY is defined])
2029 ])
2030 ]) # LC_VM_FAULT_RETRY
2031
2032 #
2033 # LC_INODE_TIMESPEC64
2034 #
2035 # kernel 4.17-rc7 commit 8efd6894ff089adeeac7cb9f32125b85d963d1bc
2036 # fs: add timespec64_truncate()
2037 # kernel 4.18 commit 95582b00838837fc07e042979320caf917ce3fe6
2038 # inode timestamps switched to timespec64
2039 # kernel 4.19-rc2 commit 976516404ff3fab2a8caa8bd6f5efc1437fed0b8
2040 # y2038: remove unused time interfaces
2041 # ...
2042 #  timespec_trunc
2043 # ...
2044 # When inode times are timespec64 stop using the deprecated
2045 # time interfaces.
2046 #
2047 # kernel v5.5-rc1-6-gba70609d5ec6 ba70609d5ec664a8f36ba1c857fcd97a478adf79
2048 # fs: Delete timespec64_trunc()
2049 #
2050 AC_DEFUN([LC_INODE_TIMESPEC64], [
2051 tmp_flags="$EXTRA_KCFLAGS"
2052 EXTRA_KCFLAGS="-Werror"
2053 LB_CHECK_COMPILE([if inode timestamps are struct timespec64],
2054 inode_timespec64, [
2055         #include <linux/fs.h>
2056 ],[
2057         struct inode *inode = NULL;
2058         struct timespec64 ts = {0, 1};
2059
2060         inode->i_atime = ts;
2061         (void)inode;
2062 ],[
2063         AC_DEFINE(HAVE_INODE_TIMESPEC64, 1,
2064                 [inode times are using timespec64])
2065 ])
2066 EXTRA_KCFLAGS="$tmp_flags"
2067 ]) # LC_INODE_TIMESPEC64
2068
2069 #
2070 # LC___XA_SET_MARK
2071 #
2072 # kernel 4.20 commit v4.19-rc5-248-g9b89a0355144
2073 # xarray: Add XArray marks - replaced radix_tree_tag_set
2074 #
2075 AC_DEFUN([LC___XA_SET_MARK], [
2076 tmp_flags="$EXTRA_KCFLAGS"
2077 EXTRA_KCFLAGS="-Werror"
2078 LB_CHECK_COMPILE([if '__xa_set_mark' exists],
2079 __xa_set_mark, [
2080         #include <linux/fs.h>
2081         #include <linux/radix-tree.h>
2082 ],[
2083         radix_tree_tag_set(NULL, 0, PAGECACHE_TAG_DIRTY);
2084 ],[
2085         AC_DEFINE(HAVE_RADIX_TREE_TAG_SET, 1,
2086                 [__xa_set_mark exists])
2087 ])
2088 EXTRA_KCFLAGS="$tmp_flags"
2089 ]) # LC___XA_SET_MARK
2090
2091 #
2092 # LC_UAPI_LINUX_MOUNT_H
2093 #
2094 # kernel 4.20 commit e262e32d6bde0f77fb0c95d977482fc872c51996
2095 # vfs: Suppress MS_* flag defs within the kernel ...
2096 #
2097 AC_DEFUN([LC_UAPI_LINUX_MOUNT_H], [
2098 tmp_flags="$EXTRA_KCFLAGS"
2099 EXTRA_KCFLAGS="-Werror"
2100 LB_CHECK_COMPILE([if MS_RDONLY was moved to uapi/linux/mount.h],
2101 uapi_linux_mount, [
2102         #include <uapi/linux/mount.h>
2103 ],[
2104         int x = MS_RDONLY;
2105         (void)x;
2106 ],[
2107         AC_DEFINE(HAVE_UAPI_LINUX_MOUNT_H, 1,
2108                 [if MS_RDONLY was moved to uapi/linux/mount.h])
2109 ])
2110 EXTRA_KCFLAGS="$tmp_flags"
2111 ]) # LC_UAPI_LINUX_MOUNT_H
2112
2113 #
2114 # LC_HAVE_SUNRPC_CACHE_HASH_LOCK_IS_A_SPINLOCK
2115 #
2116 # kernel 4.20 commit 1863d77f15da0addcd293a1719fa5d3ef8cde3ca
2117 # SUNRPC: Replace the cache_detail->hash_lock with a regular spinlock
2118 #
2119 # Now that the reader functions are all RCU protected, use a regular
2120 # spinlock rather than a reader/writer lock.
2121 #
2122 AC_DEFUN([LC_HAVE_SUNRPC_CACHE_HASH_LOCK_IS_A_SPINLOCK], [
2123 tmp_flags="$EXTRA_KCFLAGS"
2124 EXTRA_KCFLAGS="-Werror"
2125 LB_CHECK_COMPILE([if cache_detail->hash_lock is a spinlock],
2126 hash_lock_isa_spinlock_t, [
2127         #include <linux/sunrpc/cache.h>
2128 ],[
2129         spinlock_t *lock = &(((struct cache_detail *)0)->hash_lock);
2130         spin_lock(lock);
2131 ],[
2132         AC_DEFINE(HAVE_CACHE_HASH_SPINLOCK, 1,
2133                 [if cache_detail->hash_lock is a spinlock])
2134 ])
2135 EXTRA_KCFLAGS="$tmp_flags"
2136 ]) # LC_HAVE_SUNRPC_CACHE_HASH_LOCK_IS_A_SPINLOCK
2137
2138 #
2139 # LC_HAS_LINUX_SELINUX_ENABLED
2140 #
2141 # kernel 5.1 commit 3d252529480c68bfd6a6774652df7c8968b28e41
2142 # SELinux: Remove unused selinux_is_enabled
2143 #
2144 AC_DEFUN([LC_HAS_LINUX_SELINUX_ENABLED], [
2145 tmp_flags="$EXTRA_KCFLAGS"
2146 EXTRA_KCFLAGS="-Werror"
2147 LB_CHECK_COMPILE([if linux/selinux.h exists],
2148 selinux_is_enabled, [
2149         #include <linux/selinux.h>
2150 ],[
2151         bool has_selinux = selinux_is_enabled();
2152         (void)has_selinux;
2153 ],[
2154         AC_DEFINE(HAVE_LINUX_SELINUX_IS_ENABLED, 1,
2155                 [if linux/selinux.h exists])
2156 ])
2157 EXTRA_KCFLAGS="$tmp_flags"
2158 ]) # LC_HAS_LINUX_SELINUX_ENABLED
2159
2160 #
2161 # LB_HAVE_BVEC_ITER_ALL
2162 #
2163 # kernel 5.1 commit 6dc4f100c175dd0511ae8674786e7c9006cdfbfa
2164 # block: allow bio_for_each_segment_all() to iterate over multi-page bvec
2165 #
2166 AC_DEFUN([LB_HAVE_BVEC_ITER_ALL], [
2167 tmp_flags="$EXTRA_KCFLAGS"
2168 EXTRA_KCFLAGS="-Werror"
2169 LB_CHECK_COMPILE([if bvec_iter_all exists for multi-page bvec iternation],
2170 ext4fs_dirhash, [
2171         #include <linux/bvec.h>
2172 ],[
2173         struct bvec_iter_all iter;
2174         (void)iter;
2175 ],[
2176         AC_DEFINE(HAVE_BVEC_ITER_ALL, 1,
2177                 [if bvec_iter_all exists for multi-page bvec iternation])
2178 ])
2179 EXTRA_KCFLAGS="$tmp_flags"
2180 ]) # LB_HAVE_BVEC_ITER_ALL
2181
2182 #
2183 # LC_ACCOUNT_PAGE_DIRTIED
2184 #
2185 # After 5.2 kernel page dirtied is not exported
2186 #
2187 AC_DEFUN([LC_ACCOUNT_PAGE_DIRTIED], [
2188 LB_CHECK_EXPORT([account_page_dirtied], [mm/page-writeback.c],
2189         [AC_DEFINE(HAVE_ACCOUNT_PAGE_DIRTIED_EXPORT, 1,
2190                         [account_page_dirtied is exported])])
2191 ]) # LC_ACCOUNT_PAGE_DIRTIED
2192
2193 #
2194 # LC_KEYRING_SEARCH_4ARGS
2195 #
2196 # Kernel 5.2 commit dcf49dbc8077
2197 # keys: Add a 'recurse' flag for keyring searches
2198 #
2199 AC_DEFUN([LC_KEYRING_SEARCH_4ARGS], [
2200 LB_CHECK_COMPILE([if 'keyring_search' has 4 args],
2201 keyring_search_4args, [
2202         #include <linux/key.h>
2203 ],[
2204         key_ref_t keyring;
2205         keyring_search(keyring, NULL, NULL, false);
2206 ],[
2207         AC_DEFINE(HAVE_KEYRING_SEARCH_4ARGS, 1,
2208                 [keyring_search has 4 args])
2209 ])
2210 ]) # LC_KEYRING_SEARCH_4ARGS
2211
2212 #
2213 # LC_BIO_BI_PHYS_SEGMENTS
2214 #
2215 # kernel 5.3-rc1 commit 14ccb66b3f585b2bc21e7256c96090abed5a512c
2216 # block: remove the bi_phys_segments field in struct bio
2217 #
2218 AC_DEFUN([LC_BIO_BI_PHYS_SEGMENTS], [
2219 tmp_flags="$EXTRA_KCFLAGS"
2220 EXTRA_KCFLAGS="-Werror"
2221 LB_CHECK_COMPILE([if struct bio has bi_phys_segments member],
2222 bye_bio_bi_phys_segments, [
2223         #include <linux/bio.h>
2224 ],[
2225         struct bio *bio = NULL;
2226         bio->bi_phys_segments++;
2227 ],[
2228         AC_DEFINE(HAVE_BIO_BI_PHYS_SEGMENTS, 1,
2229                 [struct bio has bi_phys_segments member])
2230 ])
2231 EXTRA_KCFLAGS="$tmp_flags"
2232 ]) # LC_BIO_BI_PHYS_SEGMENTS
2233
2234 #
2235 # LC_LM_COMPARE_OWNER_EXISTS
2236 #
2237 # kernel 5.3-rc3 commit f85d93385e9fe6886a751f647f6812a89bf6bee3
2238 # locks: Cleanup lm_compare_owner and lm_owner_key
2239 # removed lm_compare_owner
2240 #
2241 AC_DEFUN([LC_LM_COMPARE_OWNER_EXISTS], [
2242 tmp_flags="$EXTRA_KCFLAGS"
2243 EXTRA_KCFLAGS="-Werror"
2244 LB_CHECK_COMPILE([if lock_manager_operations has lm_compare_owner],
2245 lock_manager_ops_lm_compare_owner, [
2246         #include <linux/fs.h>
2247 ],[
2248         struct lock_manager_operations lm_ops;
2249         lm_ops.lm_compare_owner = NULL;
2250 ],[
2251         AC_DEFINE(HAVE_LM_COMPARE_OWNER, 1,
2252                 [lock_manager_operations has lm_compare_owner])
2253 ])
2254 EXTRA_KCFLAGS="$tmp_flags"
2255 ]) # LC_LM_COMPARE_OWNER_EXISTS
2256
2257 AC_DEFUN([LC_PROG_LINUX_SRC], [])
2258 AC_DEFUN([LC_PROG_LINUX_RESULTS], [])
2259
2260 #
2261 # LC_FSCRYPT_SUPPORT
2262 #
2263 # 5.4 introduced fscrypt encryption policies v2
2264 #
2265 AC_DEFUN([LC_FSCRYPT_SUPPORT], [
2266 LB_CHECK_COMPILE([for fscrypt in-kernel support],
2267 fscrypt_support, [
2268         #define __FS_HAS_ENCRYPTION 0
2269         #include <linux/fscrypt.h>
2270 ],[
2271         fscrypt_ioctl_get_policy_ex(NULL, NULL);
2272 ],[
2273         dnl When Lustre supports file name encryption, restore "yes" value
2274         dnl for has_fscrypt_support and remove warning message.
2275         has_fscrypt_support="no"
2276         AC_MSG_WARN([
2277 This version of Lustre lacks file name encryption support,
2278 so it cannot make use of in-kernel fscrypt.
2279 Will use embedded llcrypt if possible.])
2280 ])
2281 ]) # LC_FSCRYPT_SUPPORT
2282
2283 #
2284 # LC_PROG_LINUX
2285 #
2286 # Lustre linux kernel checks
2287 #
2288 AC_DEFUN([LC_PROG_LINUX], [
2289         AC_MSG_NOTICE([Lustre kernel checks
2290 ==============================================================================])
2291
2292         LC_CONFIG_PINGER
2293         LC_CONFIG_CHECKSUM
2294         LC_CONFIG_FLOCK
2295         LC_CONFIG_HEALTH_CHECK_WRITE
2296         LC_CONFIG_LRU_RESIZE
2297         LC_CONFIG_FHANDLE
2298         LC_CONFIG_GSS
2299
2300         LC_GLIBC_SUPPORT_FHANDLES
2301         LC_GLIBC_SUPPORT_COPY_FILE_RANGE
2302         LC_OPENSSL_SSK
2303         LC_OPENSSL_GETSEPOL
2304
2305         # 3.10
2306         LC_HAVE_PROJECT_QUOTA
2307
2308         # 3.11
2309         LC_INVALIDATE_RANGE
2310         LC_HAVE_DIR_CONTEXT
2311         LC_D_COMPARE_5ARGS
2312         LC_HAVE_DCOUNT
2313         LC_HAVE_DENTRY_D_U_D_ALIAS
2314         LC_HAVE_DENTRY_D_CHILD
2315         LC_PID_NS_FOR_CHILDREN
2316
2317         # 3.12
2318         LC_OLDSIZE_TRUNCATE_PAGECACHE
2319         LC_PTR_ERR_OR_ZERO_MISSING
2320         LC_KIOCB_KI_LEFT
2321
2322         # 3.13
2323         LC_VFS_RENAME_5ARGS
2324         LC_VFS_UNLINK_3ARGS
2325         LC_HAVE_D_IS_POSITIVE
2326
2327         # 3.14
2328         LC_HAVE_BVEC_ITER
2329         LC_HAVE_TRUNCATE_IPAGES_FINAL
2330         LC_IOPS_RENAME_WITH_FLAGS
2331         LC_IOP_SET_ACL
2332
2333         # 3.15
2334         LC_VFS_RENAME_6ARGS
2335
2336         # 3.16
2337         LC_DIRECTIO_USE_ITER
2338         LC_HAVE_IOV_ITER_INIT_DIRECTION
2339         LC_HAVE_IOV_ITER_TRUNCATE
2340         LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
2341
2342         # 3.17
2343         LC_HAVE_INTERVAL_BLK_INTEGRITY
2344         LC_KEY_MATCH_DATA
2345
2346         # 3.18
2347         LC_PERCPU_COUNTER_INIT
2348         LC_NFS_FILLDIR_USE_CTX
2349
2350         # 3.19
2351         LC_KIOCB_HAS_NBYTES
2352         LC_HAVE_DQUOT_QC_DQBLK
2353         LC_HAVE_AIO_COMPLETE
2354
2355         # 3.20
2356         LC_BACKING_DEV_INFO_REMOVAL
2357         LC_HAVE_BDI_CAP_MAP_COPY
2358
2359         # 4.1.0
2360         LC_IOV_ITER_RW
2361         LC_HAVE_SYNC_READ_WRITE
2362         LC_HAVE___BI_CNT
2363
2364         # 4.2
2365         LC_BIO_ENDIO_USES_ONE_ARG
2366         LC_SYMLINK_OPS_USE_NAMEIDATA
2367         LC_ACCOUNT_PAGE_DIRTIED_3ARGS
2368
2369         # 4.3
2370         LC_HAVE_INTERVAL_EXP_BLK_INTEGRITY
2371         LC_HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD
2372         LC_HAVE_CACHE_HEAD_HLIST
2373         LC_HAVE_XATTR_HANDLER_SIMPLIFIED
2374
2375         # 4.4
2376         LC_HAVE_LOCKS_LOCK_FILE_WAIT
2377         LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
2378         LC_HAVE_XATTR_HANDLER_NAME
2379         LC_HAVE_BI_OPF
2380         LC_HAVE_SUBMIT_BIO_2ARGS
2381         LC_HAVE_CLEAN_BDEV_ALIASES
2382
2383         # 4.5
2384         LC_HAVE_FILE_DENTRY
2385
2386         # 4.5
2387         LC_HAVE_INODE_LOCK
2388         LC_HAVE_IOP_GET_LINK
2389
2390         # 4.6
2391         LC_HAVE_IN_COMPAT_SYSCALL
2392         LC_HAVE_XATTR_HANDLER_INODE_PARAM
2393         LC_LOCK_PAGE_MEMCG
2394
2395         # 4.7
2396         LC_D_IN_LOOKUP
2397         LC_DIRECTIO_2ARGS
2398         LC_GENERIC_WRITE_SYNC_2ARGS
2399         LC_FOP_ITERATE_SHARED
2400
2401         # 4.8
2402         LC_EXPORT_DEFAULT_FILE_SPLICE_READ
2403         LC_HAVE_POSIX_ACL_VALID_USER_NS
2404         LC_D_COMPARE_4ARGS
2405         LC_FULL_NAME_HASH_3ARGS
2406         LC_STRUCT_POSIX_ACL_XATTR
2407         LC_IOP_XATTR
2408
2409         # 4.9
2410         LC_GROUP_INFO_GID
2411         LC_VFS_SETXATTR
2412         LC_POSIX_ACL_UPDATE_MODE
2413
2414         # 4.10
2415         LC_IOP_GENERIC_READLINK
2416         LC_HAVE_VM_FAULT_ADDRESS
2417
2418         # 4.11
2419         LC_INODEOPS_ENHANCED_GETATTR
2420         LC_VM_OPERATIONS_REMOVE_VMF_ARG
2421         LC_HAVE_KEY_USAGE_REFCOUNT
2422         LC_HAVE_CRYPTO_MAX_ALG_NAME_128
2423
2424         # 4.12
2425         LC_CURRENT_TIME
2426         LC_SUPER_BLOCK_S_UUID
2427         LC_SUPER_SETUP_BDI_NAME
2428         LC_BI_STATUS
2429
2430         # 4.13
2431         LC_BIO_INTEGRITY_ENABLED
2432
2433         # 4.14
2434         LC_PAGEVEC_INIT_ONE_PARAM
2435         LC_BI_BDEV
2436
2437         # 4.17
2438         LC_VM_FAULT_T
2439         LC_VM_FAULT_RETRY
2440         LC_I_PAGES
2441
2442         # 4.18
2443         LC_INODE_TIMESPEC64
2444
2445         # 4.20
2446         LC___XA_SET_MARK
2447         LC_UAPI_LINUX_MOUNT_H
2448         LC_HAVE_SUNRPC_CACHE_HASH_LOCK_IS_A_SPINLOCK
2449
2450         # 5.1
2451         LC_HAS_LINUX_SELINUX_ENABLED
2452         LB_HAVE_BVEC_ITER_ALL
2453
2454         # 5.2
2455         LC_ACCOUNT_PAGE_DIRTIED
2456         LC_KEYRING_SEARCH_4ARGS
2457
2458         # 5.3
2459         LC_BIO_BI_PHYS_SEGMENTS
2460         LC_LM_COMPARE_OWNER_EXISTS
2461
2462         # kernel patch to extend integrity interface
2463         LC_BIO_INTEGRITY_PREP_FN
2464
2465         #
2466         AS_IF([test "x$enable_server" != xno], [
2467                 LC_STACK_SIZE
2468                 LC_QUOTA_CONFIG
2469         ])
2470         LC_POSIX_ACL_CONFIG
2471 ]) # LC_PROG_LINUX
2472
2473 #
2474 # LC_CONFIG_CLIENT
2475 #
2476 # Check whether to build the client side of Lustre
2477 #
2478 AC_DEFUN([LC_CONFIG_CLIENT], [
2479 AC_MSG_CHECKING([whether to build Lustre client support])
2480 AC_ARG_ENABLE([client],
2481         AC_HELP_STRING([--disable-client],
2482                 [disable Lustre client support]),
2483         [], [enable_client="yes"])
2484 AC_MSG_RESULT([$enable_client])
2485 ]) # LC_CONFIG_CLIENT
2486
2487 #
2488 # --enable-mpitests
2489 #
2490 AC_DEFUN([LB_CONFIG_MPITESTS], [
2491 AC_ARG_ENABLE([mpitests],
2492         AC_HELP_STRING([--enable-mpitests=<yes|no|mpicc wrapper>],
2493                        [include mpi tests]), [
2494                 enable_mpitests="yes"
2495                 case $enableval in
2496                 yes)
2497                         MPICC_WRAPPER="mpicc"
2498                         MPI_BIN=$(eval which $MPICC_WRAPPER | xargs dirname)
2499                         ;;
2500                 no)
2501                         enable_mpitests="no"
2502                         MPI_BIN=""
2503                         ;;
2504                 *)
2505                         MPICC_WRAPPER=$enableval
2506                         MPI_BIN=$(eval echo $MPICC_WRAPPER | xargs dirname)
2507                         ;;
2508                 esac
2509         ], [
2510                 enable_mpitests="yes"
2511                 MPICC_WRAPPER="mpicc"
2512                 MPI_BIN=$(eval which $MPICC_WRAPPER | xargs dirname)
2513         ])
2514
2515         if test "x$enable_mpitests" != "xno"; then
2516                 oldcc=$CC
2517                 CC=$MPICC_WRAPPER
2518                 AC_CACHE_CHECK([whether mpitests can be built],
2519                 lb_cv_mpi_tests, [AC_COMPILE_IFELSE([AC_LANG_SOURCE([
2520                         #include <mpi.h>
2521                         int main(void) {
2522                                 int flag;
2523                                 MPI_Initialized(&flag);
2524                                 return 0;
2525                         }
2526                 ])], [lb_cv_mpi_tests="yes"], [lb_cv_mpi_tests="no"])
2527                 ])
2528                 enable_mpitests=$lb_cv_mpi_tests
2529                 CC=$oldcc
2530         fi
2531         AC_SUBST(MPI_BIN)
2532         AC_SUBST(MPICC_WRAPPER)
2533 ]) # LB_CONFIG_MPITESTS
2534
2535 #
2536 # LC_CONFIG_QUOTA
2537 #
2538 # whether to enable quota support global control
2539 #
2540 AC_DEFUN([LC_CONFIG_QUOTA], [
2541 AC_MSG_CHECKING([whether to enable quota support global control])
2542 AC_ARG_ENABLE([quota],
2543         AC_HELP_STRING([--enable-quota],
2544                 [enable quota support]),
2545         [], [enable_quota="yes"])
2546 AS_IF([test "x$enable_quota" = xyes],
2547         [AC_MSG_RESULT([yes])],
2548         [AC_MSG_RESULT([no])])
2549 ]) # LC_CONFIG_QUOTA
2550
2551 #
2552 # LC_QUOTA
2553 #
2554 AC_DEFUN([LC_QUOTA], [
2555 #check global
2556 LC_CONFIG_QUOTA
2557 #check for utils
2558 AS_IF([test "x$enable_quota" != xno -a "x$enable_utils" != xno], [
2559         AC_CHECK_HEADER([sys/quota.h],
2560                 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1,
2561                         [Define to 1 if you have <sys/quota.h>.])],
2562                 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
2563 ])
2564 ]) # LC_QUOTA
2565
2566 #
2567 # LC_OSD_ADDON
2568 #
2569 # configure support for optional OSD implementation
2570 #
2571 AC_DEFUN([LC_OSD_ADDON], [
2572 AC_MSG_CHECKING([whether to use OSD addon])
2573 AC_ARG_WITH([osd],
2574         AC_HELP_STRING([--with-osd=path],
2575                 [set path to optional osd]),
2576         [
2577         case "$with_osd" in
2578         no)
2579                 ENABLEOSDADDON=0
2580                 ;;
2581         *)
2582                 OSDADDON="$with_osd"
2583                 ENABLEOSDADDON=1
2584                 ;;
2585         esac
2586         ], [
2587                 ENABLEOSDADDON=0
2588         ])
2589 AS_IF([test $ENABLEOSDADDON -eq 0], [
2590         AC_MSG_RESULT([no])
2591         OSDADDON=""
2592 ], [
2593         OSDMODNAME=$(basename $OSDADDON)
2594         AS_IF([test -e $LUSTRE/$OSDMODNAME], [
2595                 AC_MSG_RESULT([can't link])
2596                 OSDADDON=""
2597         ], [ln -s $OSDADDON $LUSTRE/$OSDMODNAME], [
2598                 AC_MSG_RESULT([$OSDMODNAME])
2599                 OSDADDON="obj-m += $OSDMODNAME/"
2600         ], [
2601                 AC_MSG_RESULT([can't link])
2602                 OSDADDON=""
2603         ])
2604 ])
2605 AC_SUBST(OSDADDON)
2606 ]) # LC_OSD_ADDON
2607
2608 #
2609 # LC_CONFIG_CRYPTO
2610 #
2611 # Check whether to enable Lustre client crypto
2612 #
2613 AC_DEFUN([LC_CONFIG_CRYPTO], [
2614 AC_MSG_CHECKING([whether to enable Lustre client crypto])
2615 AC_ARG_ENABLE([crypto],
2616         AC_HELP_STRING([--enable-crypto],
2617                 [enable Lustre client crypto]),
2618         [], [enable_crypto="auto"])
2619 AS_IF([test "x$enable_crypto" != xno -a "x$enable_dist" = xno], [
2620         AC_MSG_RESULT(
2621         )
2622         LC_IS_ENCRYPTED
2623         LC_FSCRYPT_SUPPORT])
2624 AS_IF([test "x$has_fscrypt_support" = xyes], [
2625         AC_DEFINE(HAVE_LUSTRE_CRYPTO, 1, [Enable Lustre client crypto via in-kernel fscrypt])
2626         enable_crypto=yes],
2627         [AS_IF([test "x$has_is_encrypted" = xyes], [
2628               AC_DEFINE(HAVE_LUSTRE_CRYPTO, 1, [Enable Lustre client crypto via embedded llcrypt])
2629               AC_DEFINE(CONFIG_LL_ENCRYPTION, 1, [embedded llcrypt])
2630               enable_crypto=yes
2631               enable_llcrypt=yes], [
2632               AS_IF([test "x$enable_crypto" = xyes],
2633                     [AC_MSG_ERROR([Lustre client crypto cannot be enabled because of lack of encryption support in your kernel.])])
2634               AS_IF([test "x$enable_crypto" != xno -a "x$enable_dist" = xno],
2635                     [AC_MSG_WARN(Lustre client crypto cannot be enabled because of lack of encryption support in your kernel.)])
2636               enable_crypto=no])])
2637 AS_IF([test "x$enable_dist" != xno], [
2638         enable_crypto=yes
2639         enable_llcrypt=yes])
2640 AC_MSG_RESULT([$enable_crypto])
2641 ]) # LC_CONFIG_CRYPTO
2642
2643 #
2644 # LC_CONFIGURE
2645 #
2646 # other configure checks
2647 #
2648 AC_DEFUN([LC_CONFIGURE], [
2649 AC_MSG_NOTICE([Lustre core checks
2650 ==============================================================================])
2651
2652 AS_IF([test $target_cpu == "i686" -o $target_cpu == "x86_64"],
2653         [CFLAGS="$CFLAGS -Wall -Werror"])
2654
2655 # maximum MDS thread count
2656 LC_MDS_MAX_THREADS
2657
2658 # lustre/utils/gss/gss_util.c
2659 # lustre/utils/gss/gssd_proc.c
2660 # lustre/utils/gss/krb5_util.c
2661 # lustre/utils/llog_reader.c
2662 # lustre/utils/create_iam.c
2663 # lustre/utils/libiam.c
2664 AC_CHECK_HEADERS([netdb.h endian.h])
2665 AC_CHECK_FUNCS([gethostbyname])
2666
2667 # lustre/utils/llverfs.c lustre/utils/libmount_utils_ldiskfs.c
2668 AC_CHECK_HEADERS([ext2fs/ext2fs.h], [], [
2669         AS_IF([test "x$enable_utils" = xyes -a "x$enable_ldiskfs" = xyes], [
2670                 AC_MSG_ERROR([
2671 ext2fs.h not found. Please install e2fsprogs development package.
2672                 ])
2673         ])
2674 ])
2675
2676 # lustre/tests/statx_test.c
2677 AC_CHECK_FUNCS([statx])
2678
2679 # lustre/utils/lfs.c
2680 AS_IF([test "$enable_dist" = "no"], [
2681                 AC_CHECK_LIB([z], [crc32], [
2682                                  AC_CHECK_HEADER([zlib.h], [], [
2683                                                  AC_MSG_ERROR([zlib.h not found.])])
2684                                  ], [
2685                                  AC_MSG_ERROR([
2686                 zlib library not found. Please install zlib development package.])
2687                 ])
2688 ])
2689
2690 SELINUX=""
2691
2692 AC_CHECK_LIB([selinux], [is_selinux_enabled],
2693         [AC_CHECK_HEADERS([selinux/selinux.h],
2694                         [SELINUX="-lselinux"
2695                         AC_DEFINE([HAVE_SELINUX], 1,
2696                                 [support for selinux ])],
2697                         [AC_MSG_WARN([
2698
2699 No libselinux-devel package found, unable to build selinux enabled tools
2700 ])
2701 ])],
2702         [AC_MSG_WARN([
2703
2704 No selinux package found, unable to build selinux enabled tools
2705 ])
2706 ])
2707 AC_SUBST(SELINUX)
2708
2709 AC_CHECK_LIB([keyutils], [add_key])
2710
2711 # Super safe df
2712 AC_MSG_CHECKING([whether to report minimum OST free space])
2713 AC_ARG_ENABLE([mindf],
2714         AC_HELP_STRING([--enable-mindf],
2715                 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
2716         [], [enable_mindf="no"])
2717 AC_MSG_RESULT([$enable_mindf])
2718 AS_IF([test "$enable_mindf" = "yes"],
2719         [AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])])
2720
2721 AC_MSG_CHECKING([whether to randomly failing memory alloc])
2722 AC_ARG_ENABLE([fail_alloc],
2723         AC_HELP_STRING([--disable-fail-alloc],
2724                 [disable randomly alloc failure]),
2725         [], [enable_fail_alloc="yes"])
2726 AC_MSG_RESULT([$enable_fail_alloc])
2727 AS_IF([test "x$enable_fail_alloc" != xno],
2728         [AC_DEFINE([RANDOM_FAIL_ALLOC], 1,
2729                 [enable randomly alloc failure])])
2730
2731 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
2732 AC_ARG_ENABLE([invariants],
2733         AC_HELP_STRING([--enable-invariants],
2734                 [enable invariant checking (cpu intensive)]),
2735         [], [enable_invariants="no"])
2736 AC_MSG_RESULT([$enable_invariants])
2737 AS_IF([test "x$enable_invariants" = xyes],
2738         [AC_DEFINE([CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK], 1,
2739                 [enable invariant checking])])
2740
2741 AC_MSG_CHECKING([whether to track references with lu_ref])
2742 AC_ARG_ENABLE([lu_ref],
2743         AC_HELP_STRING([--enable-lu_ref],
2744                 [enable lu_ref reference tracking code]),
2745         [], [enable_lu_ref="no"])
2746 AC_MSG_RESULT([$enable_lu_ref])
2747 AS_IF([test "x$enable_lu_ref" = xyes],
2748         [AC_DEFINE([USE_LU_REF], 1,
2749                 [enable lu_ref reference tracking code])])
2750
2751 AC_MSG_CHECKING([whether to enable page state tracking])
2752 AC_ARG_ENABLE([pgstate-track],
2753         AC_HELP_STRING([--enable-pgstate-track],
2754                 [enable page state tracking]),
2755         [], [enable_pgstat_track="no"])
2756 AC_MSG_RESULT([$enable_pgstat_track])
2757 AS_IF([test "x$enable_pgstat_track" = xyes],
2758         [AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
2759                 [enable page state tracking code])])
2760
2761 PKG_PROG_PKG_CONFIG
2762 AC_MSG_CHECKING([systemd unit file directory])
2763 AC_ARG_WITH([systemdsystemunitdir],
2764         [AS_HELP_STRING([--with-systemdsystemunitdir=DIR],
2765                 [Directory for systemd service files])],
2766         [], [with_systemdsystemunitdir=auto])
2767 AS_IF([test "x$with_systemdsystemunitdir" = "xyes" -o "x$with_systemdsystemunitdir" = "xauto"],
2768         [def_systemdsystemunitdir=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)
2769         AS_IF([test "x$def_systemdsystemunitdir" = "x"],
2770                 [AS_IF([test "x$with_systemdsystemunitdir" = "xyes"],
2771                 [AC_MSG_ERROR([systemd support requested but pkg-config unable to query systemd package])])
2772                 with_systemdsystemunitdir=no],
2773         [with_systemdsystemunitdir="$def_systemdsystemunitdir"])])
2774 AS_IF([test "x$with_systemdsystemunitdir" != "xno"],
2775         [AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])])
2776 AC_MSG_RESULT([$with_systemdsystemunitdir])
2777
2778 AC_MSG_CHECKING([bash-completion directory])
2779 AC_ARG_WITH([bash-completion-dir],
2780         AS_HELP_STRING([--with-bash-completion-dir[=PATH]],
2781                 [Install the bash auto-completion script in this directory.]),
2782         [],
2783         [with_bash_completion_dir=yes])
2784 AS_IF([test "x$with_bash_completion_dir" = "xyes"], [
2785         BASH_COMPLETION_DIR="`pkg-config --variable=completionsdir bash-completion`"
2786         AS_IF([test "x$BASH_COMPLETION_DIR" = "x"], [
2787                 [BASH_COMPLETION_DIR="/usr/share/bash-completion/completions"]
2788         ])
2789 ], [
2790         BASH_COMPLETION_DIR="$with_bash_completion_dir"
2791 ])
2792 AC_SUBST([BASH_COMPLETION_DIR])
2793 AC_MSG_RESULT([$BASH_COMPLETION_DIR])
2794 ]) # LC_CONFIGURE
2795
2796 #
2797 # LC_CONDITIONALS
2798 #
2799 # AM_CONDITIONALS for lustre
2800 #
2801 AC_DEFUN([LC_CONDITIONALS], [
2802 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
2803 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
2804 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
2805 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
2806 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
2807 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
2808 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
2809 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
2810 AM_CONDITIONAL(GSS_SSK, test x$enable_ssk = xyes)
2811 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
2812 AM_CONDITIONAL(HAVE_SYSTEMD, test "x$with_systemdsystemunitdir" != "xno")
2813 AM_CONDITIONAL(ENABLE_BASH_COMPLETION, test "x$with_bash_completion_dir" != "xno")
2814 AM_CONDITIONAL(XATTR_HANDLER, test "x$lb_cv_compile_xattr_handler_flags" = xyes)
2815 AM_CONDITIONAL(SELINUX, test "$SELINUX" = "-lselinux")
2816 AM_CONDITIONAL(GETSEPOL, test x$enable_getsepol = xyes)
2817 AM_CONDITIONAL(LLCRYPT, test x$enable_llcrypt = xyes)
2818 AM_CONDITIONAL(LIBAIO, test x$enable_libaio = xyes)
2819 ]) # LC_CONDITIONALS
2820
2821 #
2822 # LC_CONFIG_FILES
2823 #
2824 # files that should be generated with AC_OUTPUT
2825 #
2826 AC_DEFUN([LC_CONFIG_FILES],
2827 [AC_CONFIG_FILES([
2828 lustre/Makefile
2829 lustre/autoMakefile
2830 lustre/autoconf/Makefile
2831 lustre/conf/Makefile
2832 lustre/conf/resource/Makefile
2833 lustre/contrib/Makefile
2834 lustre/doc/Makefile
2835 lustre/include/Makefile
2836 lustre/include/lustre/Makefile
2837 lustre/include/uapi/linux/lustre/Makefile
2838 lustre/kernel_patches/targets/4.18-rhel8.3.target
2839 lustre/kernel_patches/targets/4.18-rhel8.2.target
2840 lustre/kernel_patches/targets/4.18-rhel8.1.target
2841 lustre/kernel_patches/targets/4.18-rhel8.target
2842 lustre/kernel_patches/targets/3.10-rhel7.9.target
2843 lustre/kernel_patches/targets/3.10-rhel7.8.target
2844 lustre/kernel_patches/targets/3.10-rhel7.7.target
2845 lustre/kernel_patches/targets/3.10-rhel7.6.target
2846 lustre/kernel_patches/targets/3.10-rhel7.5.target
2847 lustre/kernel_patches/targets/4.14-rhel7.5.target
2848 lustre/kernel_patches/targets/4.14-rhel7.6.target
2849 lustre/kernel_patches/targets/4.12-sles12sp4.target
2850 lustre/kernel_patches/targets/4.12-sles12sp5.target
2851 lustre/kernel_patches/targets/4.12-sles15sp1.target
2852 lustre/kernel_patches/targets/4.12-sles15sp2.target
2853 lustre/kernel_patches/targets/3.x-fc18.target
2854 lustre/ldlm/Makefile
2855 lustre/fid/Makefile
2856 lustre/fid/autoMakefile
2857 lustre/llite/Makefile
2858 lustre/llite/autoMakefile
2859 lustre/lov/Makefile
2860 lustre/lov/autoMakefile
2861 lustre/mdc/Makefile
2862 lustre/mdc/autoMakefile
2863 lustre/lmv/Makefile
2864 lustre/lmv/autoMakefile
2865 lustre/lfsck/Makefile
2866 lustre/lfsck/autoMakefile
2867 lustre/mdt/Makefile
2868 lustre/mdt/autoMakefile
2869 lustre/mdd/Makefile
2870 lustre/mdd/autoMakefile
2871 lustre/fld/Makefile
2872 lustre/fld/autoMakefile
2873 lustre/obdclass/Makefile
2874 lustre/obdclass/autoMakefile
2875 lustre/obdecho/Makefile
2876 lustre/obdecho/autoMakefile
2877 lustre/ofd/Makefile
2878 lustre/ofd/autoMakefile
2879 lustre/osc/Makefile
2880 lustre/osc/autoMakefile
2881 lustre/ost/Makefile
2882 lustre/ost/autoMakefile
2883 lustre/osd-ldiskfs/Makefile
2884 lustre/osd-ldiskfs/autoMakefile
2885 lustre/osd-zfs/Makefile
2886 lustre/osd-zfs/autoMakefile
2887 lustre/mgc/Makefile
2888 lustre/mgc/autoMakefile
2889 lustre/mgs/Makefile
2890 lustre/mgs/autoMakefile
2891 lustre/target/Makefile
2892 lustre/ptlrpc/Makefile
2893 lustre/ptlrpc/autoMakefile
2894 lustre/ptlrpc/gss/Makefile
2895 lustre/ptlrpc/gss/autoMakefile
2896 lustre/quota/Makefile
2897 lustre/quota/autoMakefile
2898 lustre/scripts/Makefile
2899 lustre/scripts/systemd/Makefile
2900 lustre/tests/Makefile
2901 lustre/tests/mpi/Makefile
2902 lustre/tests/kernel/Makefile
2903 lustre/tests/kernel/autoMakefile
2904 lustre/utils/Makefile
2905 lustre/utils/gss/Makefile
2906 lustre/osp/Makefile
2907 lustre/osp/autoMakefile
2908 lustre/lod/Makefile
2909 lustre/lod/autoMakefile
2910 ])
2911 ]) # LC_CONFIG_FILES