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 libcfs_is_module=yes
   9 ldiskfs_is_ext4=yes
  10 ])
  11
  12 #
  13 # LC_PATH_DEFAULTS
  14 #
  15 # lustre specific paths
  16 #
  17 AC_DEFUN([LC_PATH_DEFAULTS],
  18 [# ptlrpc kernel build requires this
  19 LUSTRE="$PWD/lustre"
  20 AC_SUBST(LUSTRE)
  21
  22 # mount.lustre
  23 rootsbindir='$(CROSS_PATH)/sbin'
  24 AC_SUBST(rootsbindir)
  25
  26 demodir='$(docdir)/demo'
  27 AC_SUBST(demodir)
  28
  29 pkgexampledir='${pkgdatadir}/examples'
  30 AC_SUBST(pkgexampledir)
  31 ])
  32
  33 #
  34 # LC_TARGET_SUPPORTED
  35 #
  36 # is the target os supported?
  37 #
  38 AC_DEFUN([LC_TARGET_SUPPORTED],
  39 [case $target_os in
  40         linux* | darwin*)
  41 $1
  42                 ;;
  43         *)
  44 $2
  45                 ;;
  46 esac
  47 ])
  48
  49 #
  50 # LC_CONFIG_OBD_BUFFER_SIZE
  51 #
  52 # the maximum buffer size of lctl ioctls
  53 #
  54 AC_DEFUN([LC_CONFIG_OBD_BUFFER_SIZE],
  55 [AC_MSG_CHECKING([maximum OBD ioctl size])
  56 AC_ARG_WITH([obd-buffer-size],
  57         AC_HELP_STRING([--with-obd-buffer-size=[size]],
  58                         [set lctl ioctl maximum bytes (default=8192)]),
  59         [
  60                 OBD_BUFFER_SIZE=$with_obd_buffer_size
  61         ],[
  62                 OBD_BUFFER_SIZE=8192
  63         ])
  64 AC_MSG_RESULT([$OBD_BUFFER_SIZE bytes])
  65 AC_DEFINE_UNQUOTED(CONFIG_LUSTRE_OBD_MAX_IOCTL_BUFFER, $OBD_BUFFER_SIZE, [IOCTL Buffer Size])
  66 ])
  67
  68 #
  69 # LC_READLINK_SSIZE_T
  70 #
  71 AC_DEFUN([LC_READLINK_SSIZE_T],
  72 [AC_MSG_CHECKING([if readlink returns ssize_t])
  73 AC_TRY_COMPILE([
  74         #include <unistd.h>
  75 ],[
  76         ssize_t readlink(const char *, char *, size_t);
  77 ],[
  78         AC_MSG_RESULT([yes])
  79         AC_DEFINE(HAVE_POSIX_1003_READLINK, 1, [readlink returns ssize_t])
  80 ],[
  81         AC_MSG_RESULT([no])
  82 ])
  83 ])
  84
  85 AC_DEFUN([LC_GLIBC_SUPPORT_FHANDLES],
  86 [AC_CHECK_FUNCS([name_to_handle_at],[
  87         AC_DEFINE(HAVE_FHANDLE_GLIBC_SUPPORT, 1,
  88                 [file handle and related syscalls are supported])
  89 ],[
  90         AC_MSG_WARN([file handle and related syscalls are not supported])
  91 ])
  92 ])
  93
  94 #
  95 # LC_FUNC_DEV_SET_RDONLY
  96 #
  97 # check whether dev_set_rdonly is exported.  This is needed until we
  98 # have another mechanism to fence IO from the underlying device.
  99 #
 100 AC_DEFUN([LC_FUNC_DEV_SET_RDONLY],
 101 [LB_CHECK_SYMBOL_EXPORT([dev_set_rdonly],
 102 [block/ll_rw_block.c,block/blk-core.c],[
 103         AC_DEFINE(HAVE_DEV_SET_RDONLY, 1, [kernel exports dev_set_rdonly])
 104 ],[
 105         AC_MSG_WARN([kernel missing dev_set_rdonly patch for testing])
 106 ])
 107 ])
 108
 109 #
 110 # Ensure stack size big than 8k in Lustre server (all kernels)
 111 #
 112 AC_DEFUN([LC_STACK_SIZE],
 113 [AC_MSG_CHECKING([stack size big than 8k])
 114 LB_LINUX_TRY_COMPILE([
 115         #include <linux/thread_info.h>
 116 ],[
 117         #if THREAD_SIZE < 8192
 118         #error "stack size < 8192"
 119         #endif
 120 ],[
 121         AC_MSG_RESULT(yes)
 122 ],[
 123         AC_MSG_ERROR([Lustre requires that Linux is configured with at least a 8KB stack.])
 124 ])
 125 ])
 126
 127 #
 128 # Allow the user to set the MDS thread upper limit
 129 #
 130 AC_DEFUN([LC_MDS_MAX_THREADS],
 131 [
 132         AC_ARG_WITH([mds_max_threads],
 133         AC_HELP_STRING([--with-mds-max-threads=count],
 134                        [maximum threads available on the MDS: (default=512)]),
 135         [
 136                 MDS_THREAD_COUNT=$with_mds_max_threads
 137                 AC_DEFINE_UNQUOTED(MDS_MAX_THREADS, $MDS_THREAD_COUNT, [maximum number of MDS threads])
 138         ])
 139 ])
 140
 141 #
 142 # LC_CONFIG_PINGER
 143 #
 144 # the pinger is temporary, until we have the recovery node in place
 145 #
 146 AC_DEFUN([LC_CONFIG_PINGER],
 147 [AC_MSG_CHECKING([whether to enable pinger support])
 148 AC_ARG_ENABLE([pinger],
 149         AC_HELP_STRING([--disable-pinger],
 150                         [disable recovery pinger support]),
 151         [],[enable_pinger='yes'])
 152 AC_MSG_RESULT([$enable_pinger])
 153 if test x$enable_pinger != xno ; then
 154   AC_DEFINE(ENABLE_PINGER, 1, Use the Pinger)
 155 fi
 156 ])
 157
 158 #
 159 # LC_CONFIG_CHECKSUM
 160 #
 161 # do checksum of bulk data between client and OST
 162 #
 163 AC_DEFUN([LC_CONFIG_CHECKSUM],
 164 [AC_MSG_CHECKING([whether to enable data checksum support])
 165 AC_ARG_ENABLE([checksum],
 166        AC_HELP_STRING([--disable-checksum],
 167                        [disable data checksum support]),
 168        [],[enable_checksum='yes'])
 169 AC_MSG_RESULT([$enable_checksum])
 170 if test x$enable_checksum != xno ; then
 171   AC_DEFINE(ENABLE_CHECKSUM, 1, do data checksums)
 172 fi
 173 ])
 174
 175 #
 176 # LC_CONFIG_LIBLUSTRE_RECOVERY
 177 #
 178 AC_DEFUN([LC_CONFIG_LIBLUSTRE_RECOVERY],
 179 [AC_MSG_CHECKING([whether to enable liblustre recovery support])
 180 AC_ARG_ENABLE([liblustre-recovery],
 181         AC_HELP_STRING([--disable-liblustre-recovery],
 182                         [disable liblustre recovery support]),
 183         [],[enable_liblustre_recovery='yes'])
 184 AC_MSG_RESULT([$enable_liblustre_recovery])
 185 if test x$enable_liblustre_recovery != xno ; then
 186   AC_DEFINE(ENABLE_LIBLUSTRE_RECOVERY, 1, Liblustre Can Recover)
 187 fi
 188 ])
 189
 190 #
 191 # LC_CONFIG_HEALTH_CHECK_WRITE
 192 #
 193 # Turn off the actual write to the disk
 194 #
 195 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE],
 196 [AC_MSG_CHECKING([whether to enable a write with the health check])
 197 AC_ARG_ENABLE([health_write],
 198         AC_HELP_STRING([--enable-health_write],
 199                         [enable disk writes when doing health check]),
 200         [],[enable_health_write='no'])
 201 AC_MSG_RESULT([$enable_health_write])
 202 if test x$enable_health_write != xno ; then
 203   AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, Write when Checking Health)
 204 fi
 205 ])
 206
 207 AC_DEFUN([LC_CONFIG_LRU_RESIZE],
 208 [AC_MSG_CHECKING([whether to enable lru self-adjusting])
 209 AC_ARG_ENABLE([lru_resize],
 210         AC_HELP_STRING([--enable-lru-resize],
 211                         [enable lru resize support]),
 212         [],[enable_lru_resize='yes'])
 213 AC_MSG_RESULT([$enable_lru_resize])
 214 if test x$enable_lru_resize != xno; then
 215    AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])
 216 fi
 217 ])
 218
 219 #
 220 # Quota support. The kernel must support CONFIG_QUOTA.
 221 #
 222 AC_DEFUN([LC_QUOTA_CONFIG],
 223 [LB_LINUX_CONFIG_IM([QUOTA],[],[
 224         AC_MSG_ERROR([Lustre quota requires that CONFIG_QUOTA is enabled in your kernel.])
 225         ])
 226 ])
 227
 228 # truncate_complete_page() has never been exported from an upstream kernel
 229 # remove_from_page_cache() was exported between 2.6.35 and 2.6.38
 230 # delete_from_page_cache() is exported from 2.6.39
 231 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE_PAGE],
 232          [LB_CHECK_SYMBOL_EXPORT([truncate_complete_page],
 233                                  [mm/truncate.c],
 234                                  [AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
 235                                             [kernel export truncate_complete_page])])
 236           LB_CHECK_SYMBOL_EXPORT([remove_from_page_cache],
 237                                  [mm/filemap.c],
 238                                  [AC_DEFINE(HAVE_REMOVE_FROM_PAGE_CACHE, 1,
 239                                             [kernel export remove_from_page_cache])])
 240           LB_CHECK_SYMBOL_EXPORT([delete_from_page_cache],
 241                                  [mm/filemap.c],
 242                                  [AC_DEFINE(HAVE_DELETE_FROM_PAGE_CACHE, 1,
 243                                             [kernel export delete_from_page_cache])])
 244          ])
 245
 246 #
 247 # LC_CAPA_CRYPTO
 248 #
 249 AC_DEFUN([LC_CAPA_CRYPTO],
 250 [LB_LINUX_CONFIG_IM([CRYPTO],[],[
 251         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])
 252 ])
 253 LB_LINUX_CONFIG_IM([CRYPTO_HMAC],[],[
 254         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])
 255 ])
 256 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],[
 257         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])
 258 ])
 259 ])
 260
 261 #
 262 # LC_CONFIG_RMTCLIENT
 263 #
 264 dnl FIXME
 265 dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
 266 dnl FIXME
 267 AC_DEFUN([LC_CONFIG_RMTCLIENT],
 268 [LB_LINUX_CONFIG_IM([CRYPTO_AES],[],[
 269         AC_MSG_WARN([
 270
 271 Lustre remote client require that CONFIG_CRYPTO_AES is enabled in your kernel.
 272 ])
 273 ])
 274 ])
 275
 276 #
 277 # LC_CONFIG_GSS_KEYRING (default 'auto', tests for dependencies, if found, enables; only called if gss is enabled)
 278 #
 279 AC_DEFUN([LC_CONFIG_GSS_KEYRING],
 280 [AC_MSG_CHECKING([whether to enable gss keyring backend])
 281  AC_ARG_ENABLE([gss_keyring],
 282                [AC_HELP_STRING([--disable-gss-keyring],
 283                                [disable gss keyring backend])],
 284                [],[enable_gss_keyring='auto'])
 285  AC_MSG_RESULT([$enable_gss_keyring])
 286
 287  if test x$enable_gss_keyring != xno; then
 288         LB_LINUX_CONFIG_IM([KEYS],[],
 289                            [gss_keyring_conf_test='fail';
 290                             AC_MSG_WARN([
 291
 292 GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.
 293 ])])
 294
 295         AC_CHECK_LIB([keyutils], [keyctl_search], [],
 296                      [gss_keyring_conf_test='fail';
 297                       AC_MSG_WARN([
 298
 299 libkeyutils is not found, which is required by gss keyring backend
 300 ])],)
 301
 302         if test x$gss_keyring_conf_test != xfail; then
 303                 AC_DEFINE([HAVE_GSS_KEYRING], [1], [Define this if you enable gss keyring backend])
 304                 enable_gss_keyring='yes'
 305         else
 306                 if test x$enable_gss_keyring == xyes; then
 307                         AC_MSG_ERROR([
 308
 309 Cannot enable gss_keyring. See above for details.
 310 ])
 311                 else
 312                         AC_MSG_WARN([
 313
 314 Cannot enable gss keyring.  See above for details.
 315 ])
 316                 fi
 317         fi
 318  fi
 319 ])
 320
 321 AC_DEFUN([LC_CONFIG_SUNRPC],
 322 [LB_LINUX_CONFIG_IM([SUNRPC],[],
 323                     [if test x$sunrpc_required == xyes; then
 324                          AC_MSG_ERROR([
 325
 326 kernel SUNRPC support is required by using GSS.
 327 ])
 328                      fi])
 329 ])
 330
 331 #
 332 # LC_CONFIG_GSS (default 'auto' (tests for dependencies, if found, enables))
 333 #
 334 # Build gss and related tools of Lustre. Currently both kernel and user space
 335 # parts are depend on linux platform.
 336 #
 337 AC_DEFUN([LC_CONFIG_GSS],
 338 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
 339  AC_ARG_ENABLE([gss],
 340                [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
 341                [],[enable_gss='auto'])
 342  AC_MSG_RESULT([$enable_gss])
 343
 344  if test x$enable_gss != xno; then
 345         LC_CONFIG_GSS_KEYRING
 346         sunrpc_required=$enable_gss
 347         LC_CONFIG_SUNRPC
 348         sunrpc_required=no
 349
 350         LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
 351                            [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
 352         LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
 353                            [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
 354         LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
 355                            [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
 356         LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
 357                            [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
 358
 359         require_krb5=$enable_gss
 360         AC_KERBEROS_V5
 361         require_krb5=no
 362
 363         if test x$KRBDIR != x; then
 364                 AC_CHECK_LIB([gssapi], [gss_export_lucid_sec_context],
 365                              [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi";
 366                               gss_conf_test='success'],
 367                              [AC_CHECK_LIB([gssglue], [gss_export_lucid_sec_context],
 368                                            [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue";
 369                                             gss_conf_test='success'],
 370                                            [if test x$enable_gss == xyes; then
 371                                                 AC_MSG_ERROR([
 372
 373 libgssapi or libgssglue is not found, which is required by GSS.
 374 ])
 375                                             else
 376                                                 AC_MSG_WARN([
 377
 378 libgssapi or libgssglue is not found, which is required by GSS.
 379 ])
 380                                             fi])],)
 381                 AC_SUBST(GSSAPI_LIBS)
 382         fi
 383
 384         if test x$gss_conf_test == xsuccess; then
 385                 AC_DEFINE([HAVE_GSS], [1], [Define this is if you enable gss])
 386                 enable_gss='yes'
 387         fi
 388
 389  fi
 390 ])
 391
 392 # up to v2.6.27 had a 3 arg version (inode, mask, nameidata)
 393 # v2.6.27->v2.6.37 had a 2 arg version (inode, mask)
 394 # v2.6.37->v3.0 had a 3 arg version (inode, mask, nameidata)
 395 # v3.1 onward have a 2 arg version (inode, mask)
 396 AC_DEFUN([LC_INODE_PERMISION_2ARGS],
 397 [AC_MSG_CHECKING([inode_operations->permission has two args])
 398 LB_LINUX_TRY_COMPILE([
 399         #include <linux/fs.h>
 400 ],[
 401         struct inode *inode __attribute__ ((unused));
 402
 403         inode = NULL;
 404         inode->i_op->permission(NULL, 0);
 405 ],[
 406         AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
 407                   [inode_operations->permission has two args])
 408         AC_MSG_RESULT([yes])
 409 ],[
 410         AC_MSG_RESULT([no])
 411 ])
 412 ])
 413
 414 # 2.6.32 replaces 2 functions blk_queue_max_phys_segments and blk_queue_max_hw_segments by blk_queue_max_segments
 415 AC_DEFUN([LC_BLK_QUEUE_MAX_SEGMENTS],
 416 [AC_MSG_CHECKING([if blk_queue_max_segments is defined])
 417 LB_LINUX_TRY_COMPILE([
 418         #include <linux/blkdev.h>
 419 ],[
 420         blk_queue_max_segments(NULL, 0);
 421 ],[
 422         AC_MSG_RESULT(yes)
 423         AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
 424                   [blk_queue_max_segments is defined])
 425 ],[
 426         AC_MSG_RESULT(no)
 427 ])
 428 ])
 429
 430 # 2.6.34 has quotactl_ops->[sg]et_dqblk that take struct fs_disk_quota
 431 AC_DEFUN([LC_HAVE_DQUOT_FS_DISK_QUOTA],
 432 tmp_flags="$EXTRA_KCFLAGS"
 433 EXTRA_KCFLAGS="-Werror"
 434 [AC_MSG_CHECKING([if quotactl_ops.set_dqblk takes struct fs_disk_quota])
 435 LB_LINUX_TRY_COMPILE([
 436         #include <linux/fs.h>
 437         #include <linux/quota.h>
 438 ],[
 439         ((struct quotactl_ops *)0)->set_dqblk(NULL, 0, 0, (struct fs_disk_quota*)0);
 440 ],[
 441         AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1, [quotactl_ops.set_dqblk takes struct fs_disk_quota])
 442         AC_MSG_RESULT([yes])
 443 ],[
 444         AC_MSG_RESULT([no])
 445         AC_MSG_CHECKING([if quotactl_ops.set_dqblk takes struct kqid & fs_disk_quota])
 446         LB_LINUX_TRY_COMPILE([
 447                 #include <linux/fs.h>
 448                 #include <linux/quota.h>
 449         ],[
 450                 ((struct quotactl_ops *)0)->set_dqblk((struct super_block*)0, *((struct kqid*)0), (struct fs_disk_quota*)0);
 451         ],[
 452                 AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1, [quotactl_ops.set_dqblk takes struct fs_disk_quota])
 453                 AC_DEFINE(HAVE_DQUOT_KQID, 1, [quotactl_ops.set_dqblk takes struct kqid])
 454                 AC_MSG_RESULT([yes])
 455         ],[
 456                 AC_MSG_RESULT([no])
 457         ])
 458 ])
 459 EXTRA_KCFLAGS="$tmp_flags"
 460 ])
 461
 462 # 2.6.34 has renamed dquot options to dquot_*, check for dquot_suspend
 463 AC_DEFUN([LC_HAVE_DQUOT_SUSPEND],
 464 [AC_MSG_CHECKING([if dquot_suspend is defined])
 465 LB_LINUX_TRY_COMPILE([
 466         #include <linux/quotaops.h>
 467 ],[
 468         dquot_suspend(NULL, -1);
 469 ],[
 470         AC_DEFINE(HAVE_DQUOT_SUSPEND, 1, [dquot_suspend is defined])
 471         AC_MSG_RESULT([yes])
 472 ],[
 473         AC_MSG_RESULT([no])
 474 ])
 475 ])
 476
 477 #
 478 # LC_QUOTA64
 479 #
 480 # Check if kernel has been patched for 64-bit quota limits support.
 481 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
 482 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
 483 # that in the absence of quotaio_v1.h in the kernel headers.
 484 #
 485 AC_DEFUN([LC_QUOTA64],[
 486         AC_MSG_CHECKING([if kernel has 64-bit quota limits support])
 487 tmp_flags="$EXTRA_KCFLAGS"
 488 EXTRA_KCFLAGS="-I$LINUX/fs"
 489         LB_LINUX_TRY_COMPILE([
 490                 #include <linux/kernel.h>
 491                 #include <linux/fs.h>
 492                 #if defined(HAVE_FS_QUOTA_QUOTAIO_H)
 493                 # include <quota/quotaio_v2.h>
 494                 struct v2r1_disk_dqblk dqblk_r1;
 495                 #else
 496                 #include <linux/quota.h>
 497                 int ver = QFMT_VFS_V1;
 498                 #endif
 499         ],[],[
 500                 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
 501                 AC_MSG_RESULT([yes])
 502         ],[
 503                 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
 504                         AC_MSG_ERROR([You have got no 64-bit kernel quota support.])
 505                 ],[])
 506                 AC_MSG_RESULT([no])
 507         ])
 508 EXTRA_KCFLAGS=$tmp_flags
 509 ])
 510
 511 #
 512 # 2.6.36 fs_struct.lock use spinlock instead of rwlock.
 513 #
 514 AC_DEFUN([LC_FS_STRUCT_RWLOCK],
 515 [AC_MSG_CHECKING([if fs_struct.lock use rwlock])
 516 LB_LINUX_TRY_COMPILE([
 517         #include <asm/atomic.h>
 518         #include <linux/spinlock.h>
 519         #include <linux/fs_struct.h>
 520 ],[
 521         ((struct fs_struct *)0)->lock = (rwlock_t){ 0 };
 522 ],[
 523         AC_DEFINE(HAVE_FS_STRUCT_RWLOCK, 1,
 524                   [fs_struct.lock use rwlock])
 525         AC_MSG_RESULT([yes])
 526 ],[
 527         AC_MSG_RESULT([no])
 528 ])
 529 ])
 530
 531 #
 532 # 2.6.36 super_operations add evict_inode method. it hybird of
 533 # delete_inode & clear_inode.
 534 #
 535 AC_DEFUN([LC_SBOPS_EVICT_INODE],
 536 [AC_MSG_CHECKING([if super_operations.evict_inode exist])
 537 LB_LINUX_TRY_COMPILE([
 538         #include <linux/fs.h>
 539 ],[
 540         ((struct super_operations *)0)->evict_inode(NULL);
 541 ],[
 542         AC_DEFINE(HAVE_SBOPS_EVICT_INODE, 1,
 543                 [super_operations.evict_inode() is exist in kernel])
 544         AC_MSG_RESULT([yes])
 545 ],[
 546         AC_MSG_RESULT([no])
 547 ])
 548 ])
 549
 550 #
 551 # 2.6.35 file_operations.fsync taken 2 arguments.
 552 # 3.0.0 file_operations.fsync takes 4 arguments.
 553 #
 554 AC_DEFUN([LC_FILE_FSYNC],
 555 [AC_MSG_CHECKING([if file_operations.fsync takes 4 or 2 arguments])
 556 LB_LINUX_TRY_COMPILE([
 557         #include <linux/fs.h>
 558 ],[
 559         ((struct file_operations *)0)->fsync(NULL, 0, 0, 0);
 560 ],[
 561         AC_DEFINE(HAVE_FILE_FSYNC_4ARGS, 1,
 562                 [file_operations.fsync takes 4 arguments])
 563         AC_MSG_RESULT([yes, 4 args])
 564 ],[
 565         LB_LINUX_TRY_COMPILE([
 566                 #include <linux/fs.h>
 567         ],[
 568            ((struct file_operations *)0)->fsync(NULL, 0);
 569         ],[
 570                 AC_DEFINE(HAVE_FILE_FSYNC_2ARGS, 1,
 571                         [file_operations.fsync takes 2 arguments])
 572                 AC_MSG_RESULT([yes, 2 args])
 573         ],[
 574                 AC_MSG_RESULT([no])
 575         ])
 576 ])
 577 ])
 578
 579 #
 580 # 2.6.37 remove kernel_locked
 581 #
 582 AC_DEFUN([LC_KERNEL_LOCKED],
 583 [AC_MSG_CHECKING([if kernel_locked is defined])
 584 LB_LINUX_TRY_COMPILE([
 585         #include <linux/smp_lock.h>
 586 ],[
 587         kernel_locked();
 588 ],[
 589         AC_MSG_RESULT([yes])
 590         AC_DEFINE(HAVE_KERNEL_LOCKED, 1,
 591                 [kernel_locked is defined])
 592 ],[
 593         AC_MSG_RESULT([no])
 594 ])
 595 ])
 596
 597 #
 598 # 2.6.38 dentry_operations.d_compare() taken 7 arguments.
 599 #
 600 AC_DEFUN([LC_D_COMPARE_7ARGS],
 601 [AC_MSG_CHECKING([if d_compare taken 7 arguments])
 602 LB_LINUX_TRY_COMPILE([
 603         #include <linux/dcache.h>
 604 ],[
 605         ((struct dentry_operations*)0)->d_compare(NULL,NULL,NULL,NULL,0,NULL,NULL);
 606 ],[
 607         AC_DEFINE(HAVE_D_COMPARE_7ARGS, 1,
 608                 [d_compare need 7 arguments])
 609         AC_MSG_RESULT([yes])
 610 ],[
 611         AC_MSG_RESULT([no])
 612 ])
 613 ])
 614
 615 #
 616 # 2.6.38 dentry_operations.d_delete() defined 'const' for 1st parameter.
 617 #
 618 AC_DEFUN([LC_D_DELETE_CONST],
 619 [AC_MSG_CHECKING([if d_delete has const declare on first parameter])
 620 tmp_flags="$EXTRA_KCFLAGS"
 621 EXTRA_KCFLAGS="-Werror"
 622 LB_LINUX_TRY_COMPILE([
 623         #include <linux/dcache.h>
 624 ],[
 625         const struct dentry *d = NULL;
 626         ((struct dentry_operations*)0)->d_delete(d);
 627 ],[
 628         AC_DEFINE(HAVE_D_DELETE_CONST, const,
 629                 [d_delete first parameter declared const])
 630         AC_MSG_RESULT([yes])
 631 ],[
 632         AC_DEFINE(HAVE_D_DELETE_CONST, , [])
 633         AC_MSG_RESULT([no])
 634 ])
 635 EXTRA_KCFLAGS="$tmp_flags"
 636 ])
 637
 638 #
 639 # 2.6.38 dcache_lock removed. rcu-walk commited.
 640 #
 641 AC_DEFUN([LC_DCACHE_LOCK],
 642 [AC_MSG_CHECKING([if dcache_lock is exist])
 643 LB_LINUX_TRY_COMPILE([
 644         #include <linux/dcache.h>
 645 ],[
 646         spin_lock(&dcache_lock);
 647 ],[
 648         AC_DEFINE(HAVE_DCACHE_LOCK, 1,
 649                 [dcache_lock is exist])
 650         AC_MSG_RESULT([yes])
 651 ],[
 652         AC_MSG_RESULT([no])
 653 ])
 654 ])
 655
 656 #
 657 # 2.6.38 inode.i_rcu added.
 658 #
 659 AC_DEFUN([LC_INODE_I_RCU],
 660 [AC_MSG_CHECKING([if inode.i_rcu exists])
 661 LB_LINUX_TRY_COMPILE([
 662         #include <linux/fs.h>
 663 ],[
 664         struct inode ino;
 665         struct rcu_head rcu = {};
 666         ino.i_rcu = rcu;
 667 ],[
 668         AC_DEFINE(HAVE_INODE_I_RCU, 1,
 669                 [inode.i_rcu exists])
 670         AC_MSG_RESULT([yes])
 671 ],[
 672         AC_MSG_RESULT([no])
 673 ])
 674 ])
 675
 676 #
 677 # 2.6.38 export blkdev_get_by_dev
 678 #
 679 AC_DEFUN([LC_BLKDEV_GET_BY_DEV],
 680 [LB_CHECK_SYMBOL_EXPORT([blkdev_get_by_dev],
 681 [fs/block_dev.c],[
 682 AC_DEFINE(HAVE_BLKDEV_GET_BY_DEV, 1,
 683             [blkdev_get_by_dev is exported by the kernel])
 684 ],[
 685 ])
 686 ])
 687
 688 #
 689 # 2.6.38 export simple_setattr
 690 #
 691 AC_DEFUN([LC_EXPORT_SIMPLE_SETATTR],
 692 [LB_CHECK_SYMBOL_EXPORT([simple_setattr],
 693 [fs/libfs.c],[
 694 AC_DEFINE(HAVE_SIMPLE_SETATTR, 1,
 695             [simple_setattr is exported by the kernel])
 696 ],[
 697 ])
 698 ])
 699
 700 #
 701 # truncate callback removed since 2.6.39
 702 #
 703 AC_DEFUN([LC_IOP_TRUNCATE],
 704 [AC_MSG_CHECKING([inode_operations has .truncate member function])
 705 LB_LINUX_TRY_COMPILE([
 706         #include <linux/fs.h>
 707 ],[
 708         ((struct inode_operations *)0)->truncate(NULL);
 709 ],[
 710         AC_DEFINE(HAVE_INODEOPS_TRUNCATE, 1,
 711                   [inode_operations has .truncate member function])
 712         AC_MSG_RESULT([yes])
 713 ],[
 714         AC_MSG_RESULT([no])
 715 ])
 716 ])
 717
 718 #
 719 # 2.6.39 remove unplug_fn from request_queue.
 720 #
 721 AC_DEFUN([LC_REQUEST_QUEUE_UNPLUG_FN],
 722 [AC_MSG_CHECKING([if request_queue has unplug_fn field])
 723 LB_LINUX_TRY_COMPILE([
 724         #include <linux/blkdev.h>
 725 ],[
 726         do{ }while(sizeof(((struct request_queue *)0)->unplug_fn));
 727 ],[
 728         AC_DEFINE(HAVE_REQUEST_QUEUE_UNPLUG_FN, 1,
 729                   [request_queue has unplug_fn field])
 730         AC_MSG_RESULT([yes])
 731 ],[
 732         AC_MSG_RESULT([no])
 733 ])
 734 ])
 735
 736 #
 737 # 2.6.39 replace get_sb with mount in struct file_system_type
 738 #
 739 AC_DEFUN([LC_HAVE_FSTYPE_MOUNT],
 740 [AC_MSG_CHECKING([if file_system_type has mount field])
 741 LB_LINUX_TRY_COMPILE([
 742         #include <linux/fs.h>
 743 ],[
 744         struct file_system_type fst;
 745         void *i = (void *) fst.mount;
 746 ],[
 747         AC_DEFINE(HAVE_FSTYPE_MOUNT, 1,
 748                 [struct file_system_type has mount field])
 749         AC_MSG_RESULT([yes])
 750 ],[
 751         AC_MSG_RESULT([no])
 752 ])
 753 ])
 754
 755 #
 756 # 2.6.39 The open_by_handle_at() and name_to_handle_at() system calls were
 757 # added to Linux kernel 2.6.39.
 758 # Check if client supports these functions
 759 #
 760 AC_DEFUN([LC_HAVE_FHANDLE_SYSCALLS],
 761 [LB_LINUX_CONFIG_IM([FHANDLE],[
 762         AC_DEFINE(HAVE_FHANDLE_SYSCALLS, 1,
 763                 [kernel supports fhandles and related syscalls])
 764 ],[])
 765 ])
 766
 767 #
 768 # 3.0 dirty_inode() has a flag parameter
 769 # see kernel commit aa38572954ade525817fe88c54faebf85e5a61c0
 770 #
 771 AC_DEFUN([LC_DIRTY_INODE_WITH_FLAG],
 772 [AC_MSG_CHECKING([if dirty_inode super_operation takes flag])
 773 LB_LINUX_TRY_COMPILE([
 774         #include <linux/fs.h>
 775 ],[
 776         struct inode *inode;
 777         inode->i_sb->s_op->dirty_inode(NULL, 0);
 778 ],[
 779         AC_DEFINE(HAVE_DIRTY_INODE_HAS_FLAG, 1,
 780                   [dirty_inode super_operation takes flag])
 781         AC_MSG_RESULT([yes])
 782 ],[
 783         AC_MSG_RESULT([no])
 784 ])
 785 ])
 786
 787 #
 788 # 2.6.38 generic_permission taken 4 parameters.
 789 # in fact, it means rcu-walk aware permission bring.
 790 #
 791 # 3.1 generic_permission taken 2 parameters.
 792 # see kernel commit 2830ba7f34ebb27c4e5b8b6ef408cd6d74860890
 793 #
 794 AC_DEFUN([LC_GENERIC_PERMISSION],
 795 [AC_MSG_CHECKING([if generic_permission take 2 or 4 arguments])
 796 LB_LINUX_TRY_COMPILE([
 797         #include <linux/fs.h>
 798 ],[
 799         generic_permission(NULL, 0);
 800 ],[
 801         AC_DEFINE(HAVE_GENERIC_PERMISSION_2ARGS, 1,
 802                   [generic_permission taken 2 arguments])
 803         AC_MSG_RESULT([yes, 2 args])
 804 ],[
 805         LB_LINUX_TRY_COMPILE([
 806                 #include <linux/fs.h>
 807         ],[
 808                 generic_permission(NULL, 0, 0, NULL);
 809         ],[
 810                 AC_DEFINE(HAVE_GENERIC_PERMISSION_4ARGS, 1,
 811                           [generic_permission taken 4 arguments])
 812                 AC_MSG_RESULT([yes, 4 args])
 813         ],[
 814                 AC_MSG_RESULT([no])
 815         ])
 816 ])
 817 ])
 818
 819 #
 820 # 3.1 renames lock-manager ops(lock_manager_operations) from fl_xxx to lm_xxx
 821 # see kernel commit 8fb47a4fbf858a164e973b8ea8ef5e83e61f2e50
 822 #
 823 AC_DEFUN([LC_LM_XXX_LOCK_MANAGER_OPS],
 824 [AC_MSG_CHECKING([if lock-manager ops renamed to lm_xxx])
 825 LB_LINUX_TRY_COMPILE([
 826         #include <linux/fs.h>
 827 ],[
 828         struct lock_manager_operations lm_ops;
 829         lm_ops.lm_compare_owner = NULL;
 830 ],[
 831         AC_DEFINE(HAVE_LM_XXX_LOCK_MANAGER_OPS, 1,
 832                   [lock-manager ops renamed to lm_xxx])
 833         AC_MSG_RESULT([yes])
 834 ],[
 835         AC_MSG_RESULT([no])
 836 ])
 837 ])
 838
 839 #
 840 # 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait/
 841 #     inode_dio_done instead.
 842 # see kernel commit bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3
 843 #
 844 AC_DEFUN([LC_INODE_DIO_WAIT],
 845 [AC_MSG_CHECKING([if inode->i_alloc_sem is killed and use inode_dio_wait/done.])
 846 LB_LINUX_TRY_COMPILE([
 847         #include <linux/fs.h>
 848 ],[
 849         inode_dio_wait((struct inode *)0);
 850         inode_dio_done((struct inode *)0);
 851 ],[
 852         AC_DEFINE(HAVE_INODE_DIO_WAIT, 1,
 853                   [inode->i_alloc_sem is killed and use inode_dio_wait/done])
 854         AC_MSG_RESULT([yes])
 855 ],[
 856         AC_MSG_RESULT([no])
 857 ])
 858 ])
 859
 860 #
 861 # 3.1 adds get_acl method to inode_operations to read ACL from disk.
 862 # see kernel commit 4e34e719e457f2e031297175410fc0bd4016a085
 863 #
 864 AC_DEFUN([LC_IOP_GET_ACL],
 865 [AC_MSG_CHECKING([inode_operations has .get_acl member function])
 866 LB_LINUX_TRY_COMPILE([
 867         #include <linux/fs.h>
 868 ],[
 869         struct inode_operations iop;
 870         iop.get_acl = NULL;
 871 ],[
 872         AC_DEFINE(HAVE_IOP_GET_ACL, 1,
 873                   [inode_operations has .get_acl member function])
 874         AC_MSG_RESULT([yes])
 875 ],[
 876         AC_MSG_RESULT([no])
 877 ])
 878 ])
 879
 880 #
 881 # 3.1 introduced generic_file_llseek_size()
 882 #
 883 AC_DEFUN([LC_FILE_LLSEEK_SIZE],
 884         [LB_CHECK_SYMBOL_EXPORT([generic_file_llseek_size],
 885         [fs/read_write.c],
 886         [AC_DEFINE(HAVE_FILE_LLSEEK_SIZE, 1,
 887                    [generic_file_llseek_size is exported by the kernel])])
 888 ])
 889
 890 #
 891 # 3.2 request_queue.make_request_fn defined as function returns with void
 892 # see kernel commit 5a7bbad27a410350e64a2d7f5ec18fc73836c14f
 893 #
 894 AC_DEFUN([LC_HAVE_VOID_MAKE_REQUEST_FN],
 895 [AC_MSG_CHECKING([if request_queue.make_request_fn returns void but not int])
 896 LB_LINUX_TRY_COMPILE([
 897         #include <linux/blkdev.h>
 898 ],[
 899         int ret;
 900         make_request_fn         *mrf;
 901         ret = mrf(NULL, NULL);
 902 ],[
 903         AC_MSG_RESULT([no])
 904 ],[
 905         AC_DEFINE(HAVE_VOID_MAKE_REQUEST_FN, 1,
 906                   [request_queue.make_request_fn returns void but not int])
 907         AC_MSG_RESULT([yes])
 908 ])
 909 ])
 910
 911 #
 912 # 3.2 protects inode->i_nlink from direct modification
 913 # see kernel commit a78ef704a8dd430225955f0709b22d4a6ba21deb
 914 # at the same time adds set_nlink(), so checks set_nlink() for it.
 915 #
 916 AC_DEFUN([LC_HAVE_PROTECT_I_NLINK],
 917 [AC_MSG_CHECKING([if inode->i_nlink is protected from direct modification])
 918 LB_LINUX_TRY_COMPILE([
 919         #include <linux/fs.h>
 920 ],[
 921         struct inode i;
 922         set_nlink(&i, 1);
 923 ],[
 924         AC_DEFINE(HAVE_PROTECT_I_NLINK, 1,
 925                   [inode->i_nlink is protected from direct modification])
 926         AC_MSG_RESULT([yes])
 927 ],[
 928         AC_MSG_RESULT([no])
 929 ])
 930 ])
 931
 932 #
 933 # 3.3 introduces migrate_mode.h and migratepage has 4 args
 934 #
 935 AC_DEFUN([LC_HAVE_MIGRATE_HEADER],
 936 [LB_CHECK_FILE([$LINUX/include/linux/migrate.h],[
 937                 AC_DEFINE(HAVE_MIGRATE_H, 1,
 938                 [kernel has include/linux/migrate.h])
 939 ],[LB_CHECK_FILE([$LINUX/include/linux/migrate_mode.h],[
 940                 AC_DEFINE(HAVE_MIGRATE_MODE_H, 1,
 941                         [kernel has include/linux/migrate_mode.h])
 942 ],[
 943         AC_MSG_RESULT([no])
 944 ])
 945 ])
 946 ])
 947
 948 AC_DEFUN([LC_MIGRATEPAGE_4ARGS],
 949 [AC_MSG_CHECKING([if address_space_operations.migratepage has 4 args])
 950 LB_LINUX_TRY_COMPILE([
 951         #include <linux/fs.h>
 952 #ifdef HAVE_MIGRATE_H
 953         #include <linux/migrate.h>
 954 #elif defined(HAVE_MIGRATE_MODE_H)
 955         #include <linux/migrate_mode.h>
 956 #endif
 957 ],[
 958         struct address_space_operations aops;
 959
 960         aops.migratepage(NULL, NULL, NULL, MIGRATE_ASYNC);
 961 ],[
 962         AC_DEFINE(HAVE_MIGRATEPAGE_4ARGS, 1,
 963                 [address_space_operations.migratepage has 4 args])
 964         AC_MSG_RESULT([yes])
 965 ],[
 966         AC_MSG_RESULT([no])
 967 ])
 968 ])
 969
 970 #
 971 # 3.3 switchs super_operations to use dentry as parameter (but not vfsmount)
 972 # see kernel commit 34c80b1d93e6e20ca9dea0baf583a5b5510d92d4
 973 #
 974 AC_DEFUN([LC_SUPEROPS_USE_DENTRY],
 975 [AC_MSG_CHECKING([if super_operations use dentry as parameter])
 976 tmp_flags="$EXTRA_KCFLAGS"
 977 EXTRA_KCFLAGS="-Werror"
 978 LB_LINUX_TRY_COMPILE([
 979         #include <linux/fs.h>
 980         int show_options(struct seq_file *seq, struct dentry *root){
 981                 return 0;
 982         }
 983 ],[
 984         struct super_operations ops;
 985         ops.show_options = show_options;
 986 ],[
 987         AC_DEFINE(HAVE_SUPEROPS_USE_DENTRY, 1,
 988                   [super_operations use dentry as parameter])
 989         AC_MSG_RESULT([yes])
 990 ],[
 991         AC_MSG_RESULT([no])
 992 ])
 993 EXTRA_KCFLAGS="$tmp_flags"
 994 ])
 995
 996 #
 997 # 3.3 switchs inode_operations to use umode_t as parameter (but not int)
 998 # see kernel commit 1a67aafb5f72a436ca044293309fa7e6351d6a35
 999 #
1000 AC_DEFUN([LC_INODEOPS_USE_UMODE_T],
1001 [AC_MSG_CHECKING([if inode_operations use umode_t as parameter])
1002 tmp_flags="$EXTRA_KCFLAGS"
1003 EXTRA_KCFLAGS="-Werror"
1004 LB_LINUX_TRY_COMPILE([
1005         #include <linux/fs.h>
1006         #include <linux/types.h>
1007         int my_mknod(struct inode *dir, struct dentry *dchild,
1008                      umode_t mode, dev_t dev)
1009         {
1010                 return 0;
1011         }
1012 ],[
1013         struct inode_operations ops;
1014         ops.mknod = my_mknod;
1015 ],[
1016         AC_DEFINE(HAVE_INODEOPS_USE_UMODE_T, 1,
1017                   [inode_operations use umode_t as parameter])
1018         AC_MSG_RESULT([yes])
1019 ],[
1020         AC_MSG_RESULT([no])
1021 ])
1022 EXTRA_KCFLAGS="$tmp_flags"
1023 ])
1024
1025 # 3.4 kmap_atomic removes second argument
1026 # see kernel commit 1ec9c5ddc17aa398f05646abfcbaf315b544e62f
1027 #
1028 AC_DEFUN([LC_KMAP_ATOMIC_HAS_1ARG],
1029 [AC_MSG_CHECKING([if kmap_atomic has only 1 argument])
1030 LB_LINUX_TRY_COMPILE([
1031         #include <linux/highmem.h>
1032 ],[
1033         kmap_atomic(NULL);
1034 ],[
1035         AC_DEFINE(HAVE_KMAP_ATOMIC_HAS_1ARG, 1,
1036                   [have kmap_atomic has only 1 argument])
1037         AC_MSG_RESULT([yes])
1038 ],[
1039         AC_MSG_RESULT([no])
1040 ])
1041 ])
1042
1043 #
1044 # 3.4 converts d_alloc_root to d_make_root
1045 # see kernel commit 32991ab305ace7017c62f8eecbe5eb36dc32e13b
1046 #
1047 AC_DEFUN([LC_HAVE_D_MAKE_ROOT],
1048 [AC_MSG_CHECKING([if have d_make_root])
1049 LB_LINUX_TRY_COMPILE([
1050         #include <linux/fs.h>
1051 ],[
1052         d_make_root((struct inode *)NULL);
1053 ],[
1054         AC_DEFINE(HAVE_D_MAKE_ROOT, 1,
1055                   [have d_make_root])
1056         AC_MSG_RESULT([yes])
1057 ],[
1058         AC_MSG_RESULT([no])
1059 ])
1060 ])
1061
1062 #
1063 # 3.4 cache_register/cache_unregister are removed
1064 # see kernel commit 2c5f846747526e2b83c5f1b8e69016be0e2e87c0
1065 # Note, since 2.6.37 cache_register_net/cache_unregister_net
1066 # are defined, but not exported.
1067 # 3.3 cache_register_net/cache_unregister_net are
1068 # exported and replacing cache_register/cache_unregister in 3.4
1069 #
1070 AC_DEFUN([LC_HAVE_CACHE_REGISTER],
1071 [AC_MSG_CHECKING([if have cache_register])
1072 LB_LINUX_TRY_COMPILE([
1073         #include <linux/sunrpc/cache.h>
1074 ],[
1075         cache_register(NULL);
1076 ],[
1077         AC_DEFINE(HAVE_CACHE_REGISTER, 1,
1078                   [have cache_register])
1079         AC_MSG_RESULT([yes])
1080 ],[
1081         AC_MSG_RESULT([no])
1082 ])
1083 ])
1084
1085 #
1086 # 3.5 renames end_writeback() back to clear_inode()...
1087 # see kernel commit dbd5768f87ff6fb0a4fe09c4d7b6c4a24de99430
1088 #
1089 AC_DEFUN([LC_HAVE_CLEAR_INODE],
1090 [AC_MSG_CHECKING([if have clear_inode])
1091 LB_LINUX_TRY_COMPILE([
1092         #include <linux/fs.h>
1093 ],[
1094         clear_inode((struct inode *)NULL);
1095 ],[
1096         AC_DEFINE(HAVE_CLEAR_INODE, 1,
1097                   [have clear_inode])
1098         AC_MSG_RESULT([yes])
1099 ],[
1100         AC_MSG_RESULT([no])
1101 ])
1102 ])
1103
1104 #
1105 # 3.5 encode_fh has parent inode passed in directly
1106 # see kernel commit b0b0382b
1107 #
1108 AC_DEFUN([LC_HAVE_ENCODE_FH_PARENT],
1109 [AC_MSG_CHECKING([if encode_fh have parent inode as parameter])
1110 tmp_flags="$EXTRA_KCFLAGS"
1111 EXTRA_KCFLAGS="-Werror"
1112 LB_LINUX_TRY_COMPILE([
1113         #include <linux/exportfs.h>
1114         #include <linux/fs.h>
1115         #include <linux/types.h>
1116         int ll_encode_fh(struct inode *i, __u32 *a, int *b, struct inode *p)
1117         {
1118                 return 0;
1119         }
1120 ],[
1121         struct export_operations exp_op;
1122         exp_op.encode_fh = ll_encode_fh;
1123 ],[
1124         AC_DEFINE(HAVE_ENCODE_FH_PARENT, 1,
1125                   [have parent inode as parameter])
1126         AC_MSG_RESULT([yes])
1127 ],[
1128         AC_MSG_RESULT([no])
1129 ])
1130 EXTRA_KCFLAGS="$tmp_flags"
1131 ])
1132
1133 # 3.5 has generic_file_llseek_size with 5 args
1134 AC_DEFUN([LC_FILE_LLSEEK_SIZE_5ARG],
1135 [AC_MSG_CHECKING([if kernel has generic_file_llseek_size with 5 args])
1136 LB_LINUX_TRY_COMPILE([
1137         #include <linux/fs.h>
1138 ],[
1139         generic_file_llseek_size(NULL, 0, 0, 0, 0);
1140 ], [
1141         AC_MSG_RESULT([yes])
1142         AC_DEFINE(HAVE_FILE_LLSEEK_SIZE_5ARGS, 1,
1143                 [kernel has generic_file_llseek_size with 5 args])
1144 ],[
1145         AC_MSG_RESULT([no])
1146 ])
1147 ])
1148
1149 #
1150 # 3.6 switch i_dentry/d_alias from list to hlist
1151 #
1152 AC_DEFUN([LC_HAVE_DENTRY_D_ALIAS_HLIST],
1153 [AC_MSG_CHECKING([if i_dentry/d_alias uses hlist])
1154 tmp_flags="$EXTRA_KCFLAGS"
1155 EXTRA_KCFLAGS="-Werror"
1156 LB_LINUX_TRY_COMPILE([
1157         #include <linux/fs.h>
1158         #include <linux/list.h>
1159 ],[
1160         struct inode inode;
1161         struct dentry dentry;
1162         struct hlist_head head;
1163         struct hlist_node node;
1164         inode.i_dentry = head;
1165         dentry.d_alias = node;
1166 ],[
1167         AC_DEFINE(HAVE_DENTRY_D_ALIAS_HLIST, 1,
1168                   [have i_dentry/d_alias uses hlist])
1169         AC_MSG_RESULT([yes])
1170 ],[
1171         AC_MSG_RESULT([no])
1172 ])
1173 EXTRA_KCFLAGS="$tmp_flags"
1174 ])
1175
1176 #
1177 # 3.6 dentry_open uses struct path as first argument
1178 # see kernel commit 765927b2
1179 #
1180 AC_DEFUN([LC_DENTRY_OPEN_USE_PATH],
1181 [AC_MSG_CHECKING([if dentry_open uses struct path as first argument])
1182 tmp_flags="$EXTRA_KCFLAGS"
1183 EXTRA_KCFLAGS="-Werror"
1184 LB_LINUX_TRY_COMPILE([
1185         #include <linux/fs.h>
1186         #include <linux/path.h>
1187 ],[
1188         struct path path;
1189         dentry_open(&path, 0, NULL);
1190 ],[
1191         AC_DEFINE(HAVE_DENTRY_OPEN_USE_PATH, 1,
1192                   [dentry_open uses struct path as first argument])
1193         AC_MSG_RESULT([yes])
1194 ],[
1195         AC_MSG_RESULT([no])
1196 ])
1197 EXTRA_KCFLAGS="$tmp_flags"
1198 ])
1199
1200 #
1201 # 3.6 vfs adds iop->atomic_open
1202 #
1203 AC_DEFUN([LC_HAVE_IOP_ATOMIC_OPEN],
1204 [AC_MSG_CHECKING([if iop has atomic_open])
1205 LB_LINUX_TRY_COMPILE([
1206         #include <linux/fs.h>
1207 ],[
1208         struct inode_operations iop;
1209         iop.atomic_open = NULL;
1210 ],[
1211         AC_DEFINE(HAVE_IOP_ATOMIC_OPEN, 1,
1212                   [have iop atomic_open])
1213         AC_MSG_RESULT([yes])
1214 ],[
1215         AC_MSG_RESULT([no])
1216 ])
1217 ])
1218
1219 #
1220 # 3.7 posix_acl_{to,from}_xattr take struct user_namespace
1221 #
1222 AC_DEFUN([LC_HAVE_POSIXACL_USER_NS],
1223 [AC_MSG_CHECKING([if posix_acl_to_xattr takes struct user_namespace])
1224 LB_LINUX_TRY_COMPILE([
1225         #include <linux/fs.h>
1226         #include <linux/posix_acl_xattr.h>
1227 ],[
1228         posix_acl_to_xattr((struct user_namespace *)NULL, NULL, NULL, 0);
1229 ],[
1230         AC_DEFINE(HAVE_POSIXACL_USER_NS, 1,
1231                   [posix_acl_to_xattr takes struct user_namespace])
1232         AC_MSG_RESULT([yes])
1233 ],[
1234         AC_MSG_RESULT([no])
1235 ])
1236 ])
1237
1238 #
1239 # 3.8 struct file has new member f_inode
1240 #
1241 AC_DEFUN([LC_HAVE_FILE_F_INODE],
1242 [AC_MSG_CHECKING([if struct file has memeber f_inode])
1243 LB_LINUX_TRY_COMPILE([
1244         #include <linux/fs.h>
1245 ],[
1246         ((struct file *)0)->f_inode = NULL;
1247 ],[
1248         AC_DEFINE(HAVE_FILE_F_INODE, 1,
1249                   [struct file has memeber f_inode])
1250         AC_MSG_RESULT([yes])
1251 ],[
1252         AC_MSG_RESULT([no])
1253 ])
1254 ])
1255
1256 AC_DEFUN([LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS],
1257 [AC_MSG_CHECKING([if sunrpc_cache_pipe_upcall takes 3 args])
1258 LB_LINUX_TRY_COMPILE([
1259         #include <linux/sunrpc/cache.h>
1260 ],[
1261         sunrpc_cache_pipe_upcall(NULL, NULL, NULL);
1262 ],[
1263         AC_DEFINE(HAVE_SUNRPC_UPCALL_HAS_3ARGS, 1,
1264                 [sunrpc_cache_pipe_upcall takes 3 args])
1265         AC_MSG_RESULT([yes])
1266 ],[
1267         AC_MSG_RESULT([no])
1268 ])
1269 ])
1270
1271 #
1272 # 3.9 uses hlist_for_each_entry with 3 args
1273 # b67bfe0d42cac56c512dd5da4b1b347a23f4b70a
1274 #
1275 AC_DEFUN([LC_HAVE_HLIST_FOR_EACH_3ARG],
1276 [AC_MSG_CHECKING([if hlist_for_each_entry has 3 args])
1277 LB_LINUX_TRY_COMPILE([
1278         #include <linux/list.h>
1279         #include <linux/fs.h>
1280 ],[
1281         struct inode *inode;
1282         struct dentry *dentry;
1283         hlist_for_each_entry(dentry, &inode->i_dentry, d_alias) {
1284                 continue;
1285         }
1286 ],[
1287         AC_DEFINE(HAVE_HLIST_FOR_EACH_3ARG, 1, [3 args])
1288         AC_MSG_RESULT([yes])
1289 ],[
1290         AC_MSG_RESULT([no])
1291 ])
1292 ])
1293
1294 #
1295 # 3.10+ only supports procfs seq_files handling
1296 #
1297 AC_DEFUN([LC_HAVE_ONLY_PROCFS_SEQ],
1298 [AC_MSG_CHECKING([if procfs only supports using seq_files])
1299 LB_LINUX_TRY_COMPILE([
1300         #include <linux/proc_fs.h>
1301 ],[
1302         ((struct proc_dir_entry *)0)->write_proc(NULL, NULL, 0, NULL);
1303 ],[
1304         AC_MSG_RESULT([no])
1305 ],[
1306         AC_DEFINE(HAVE_ONLY_PROCFS_SEQ, 1, [only seq_files supported])
1307         AC_MSG_RESULT([yes])
1308 ])
1309 ])
1310
1311 # 3.10 release for block device doesn't return int
1312 AC_DEFUN([LC_BLKDEV_RELEASE_RETURN_INT],
1313 [AC_MSG_CHECKING([if block_device_operations release returns int])
1314 LB_LINUX_TRY_COMPILE([
1315         #include <linux/blkdev.h>
1316 ],[
1317         struct block_device_operations fops;
1318         int i __attribute__ ((unused));
1319
1320         i = fops.release(NULL,0);
1321 ],[
1322         AC_MSG_RESULT([yes])
1323         AC_DEFINE(HAVE_BLKDEV_RELEASE_RETURN_INT, 1,
1324                   [block device release returns int])
1325 ],[
1326         AC_MSG_RESULT([no])
1327 ])
1328 ])
1329
1330 #
1331 # 3.11 invalidatepage requires the length of the range to invalidate
1332 #
1333 AC_DEFUN([LC_INVALIDATE_RANGE],
1334 [AC_MSG_CHECKING([if address_space_operations.invalidatepage requires 3 arguments])
1335 LB_LINUX_TRY_COMPILE([
1336         #include <linux/fs.h>
1337 ],[
1338         struct address_space_operations a_ops;
1339
1340         a_ops.invalidatepage(NULL,0,0);
1341 ],[
1342         AC_DEFINE(HAVE_INVALIDATE_RANGE, 1, [address_space_operations.invalidatepage needs 3 arguments])
1343         AC_MSG_RESULT([yes])
1344 ],[
1345         AC_MSG_RESULT([no])
1346 ])
1347 ])
1348
1349 #
1350 # 3.11 readdir now takes the new struct dir_context
1351 #
1352 AC_DEFUN([LC_HAVE_DIR_CONTEXT],
1353 [AC_MSG_CHECKING([if dir_context exist])
1354 LB_LINUX_TRY_COMPILE([
1355         #include <linux/fs.h>
1356 ],[
1357         struct dir_context ctx;
1358
1359         ctx.pos = 0;
1360 ],[
1361         AC_DEFINE(HAVE_DIR_CONTEXT, 1, [dir_context exist])
1362         AC_MSG_RESULT([yes])
1363 ],[
1364         AC_MSG_RESULT([no])
1365 ])
1366 ])
1367
1368 #
1369 # 3.11 dentry_operations.d_compare() taken 5 arguments.
1370 #
1371 AC_DEFUN([LC_D_COMPARE_5ARGS],
1372 [AC_MSG_CHECKING([if d_compare taken 5 arguments])
1373 LB_LINUX_TRY_COMPILE([
1374         #include <linux/dcache.h>
1375 ],[
1376         ((struct dentry_operations*)0)->d_compare(NULL,NULL,0,NULL,NULL);
1377 ],[
1378         AC_DEFINE(HAVE_D_COMPARE_5ARGS, 1,
1379                 [d_compare need 5 arguments])
1380         AC_MSG_RESULT([yes])
1381 ],[
1382         AC_MSG_RESULT([no])
1383 ])
1384 ])
1385
1386 #
1387 # 3.11 need to access d_count to get dentry reference count
1388 #
1389 AC_DEFUN([LC_HAVE_DCOUNT],
1390 [AC_MSG_CHECKING([if d_count exist])
1391 LB_LINUX_TRY_COMPILE([
1392         #include <linux/dcache.h>
1393 ],[
1394         struct dentry de;
1395
1396         d_count(&de);
1397 ],[
1398         AC_DEFINE(HAVE_D_COUNT, 1, [d_count exist])
1399         AC_MSG_RESULT([yes])
1400 ],[
1401         AC_MSG_RESULT([no])
1402 ])
1403 ])
1404
1405 #
1406 # 3.12 truncate_pagecache without oldsize parameter
1407 #
1408 AC_DEFUN([LC_OLDSIZE_TRUNCATE_PAGECACHE],
1409 [AC_MSG_CHECKING([if truncate_pagecache with old_size parameter])
1410 LB_LINUX_TRY_COMPILE([
1411         #include <linux/mm.h>
1412 ],[
1413         truncate_pagecache(NULL, 0, 0);
1414 ],[
1415         AC_DEFINE(HAVE_OLDSIZE_TRUNCATE_PAGECACHE, 1, [with oldsize])
1416         AC_MSG_RESULT([yes])
1417 ],[
1418         AC_MSG_RESULT([no])
1419 ])
1420 ])
1421
1422 #
1423 # 3.12 ki_left removed from struct kiocb
1424 #
1425 AC_DEFUN([LC_KIOCB_KI_LEFT],
1426 [AC_MSG_CHECKING([if struct kiocb with ki_left member])
1427 LB_LINUX_TRY_COMPILE([
1428         #include <linux/aio.h>
1429 ],[
1430         ((struct kiocb*)0)->ki_left = 0;
1431 ],[
1432         AC_DEFINE(HAVE_KIOCB_KI_LEFT, 1, [ki_left exist])
1433         AC_MSG_RESULT([yes])
1434 ],[
1435         AC_MSG_RESULT([no])
1436 ])
1437 ])
1438
1439 #
1440 # LC_PROG_LINUX
1441 #
1442 # Lustre linux kernel checks
1443 #
1444 AC_DEFUN([LC_PROG_LINUX],
1445          [
1446          LC_CONFIG_PINGER
1447          LC_CONFIG_CHECKSUM
1448          LC_CONFIG_LIBLUSTRE_RECOVERY
1449          LC_CONFIG_HEALTH_CHECK_WRITE
1450          LC_CONFIG_LRU_RESIZE
1451          LC_LLITE_LLOOP_MODULE
1452
1453          LC_GLIBC_SUPPORT_FHANDLES
1454          LC_CAPA_CRYPTO
1455          LC_CONFIG_RMTCLIENT
1456          LC_CONFIG_GSS
1457
1458          # 2.6.32
1459          LC_BLK_QUEUE_MAX_SEGMENTS
1460
1461          # 2.6.34
1462          LC_HAVE_DQUOT_FS_DISK_QUOTA
1463          LC_HAVE_DQUOT_SUSPEND
1464
1465          # 2.6.35, 3.0.0
1466          LC_FILE_FSYNC
1467          LC_EXPORT_SIMPLE_SETATTR
1468          LC_EXPORT_TRUNCATE_COMPLETE_PAGE
1469
1470          # 2.6.36
1471          LC_FS_STRUCT_RWLOCK
1472          LC_SBOPS_EVICT_INODE
1473
1474          # 2.6.37
1475          LC_KERNEL_LOCKED
1476
1477          # 2.6.38
1478          LC_BLKDEV_GET_BY_DEV
1479          LC_GENERIC_PERMISSION
1480          LC_DCACHE_LOCK
1481          LC_INODE_I_RCU
1482          LC_D_COMPARE_7ARGS
1483          LC_D_DELETE_CONST
1484
1485          # 2.6.39
1486          LC_REQUEST_QUEUE_UNPLUG_FN
1487          LC_HAVE_FHANDLE_SYSCALLS
1488          LC_HAVE_FSTYPE_MOUNT
1489          LC_IOP_TRUNCATE
1490
1491          # 3.0
1492          LC_DIRTY_INODE_WITH_FLAG
1493
1494          # 3.1
1495          LC_LM_XXX_LOCK_MANAGER_OPS
1496          LC_INODE_DIO_WAIT
1497          LC_IOP_GET_ACL
1498          LC_FILE_LLSEEK_SIZE
1499          LC_INODE_PERMISION_2ARGS
1500
1501          # 3.2
1502          LC_HAVE_VOID_MAKE_REQUEST_FN
1503          LC_HAVE_PROTECT_I_NLINK
1504
1505          # 3.3
1506          LC_HAVE_MIGRATE_HEADER
1507          LC_MIGRATEPAGE_4ARGS
1508          LC_SUPEROPS_USE_DENTRY
1509          LC_INODEOPS_USE_UMODE_T
1510          LC_HAVE_CACHE_REGISTER
1511
1512          # 3.4
1513          LC_HAVE_D_MAKE_ROOT
1514          LC_KMAP_ATOMIC_HAS_1ARG
1515
1516          # 3.5
1517          LC_HAVE_CLEAR_INODE
1518          LC_HAVE_ENCODE_FH_PARENT
1519          LC_FILE_LLSEEK_SIZE_5ARG
1520
1521          # 3.6
1522          LC_HAVE_DENTRY_D_ALIAS_HLIST
1523          LC_DENTRY_OPEN_USE_PATH
1524          LC_HAVE_IOP_ATOMIC_OPEN
1525
1526          # 3.7
1527          LC_HAVE_POSIXACL_USER_NS
1528
1529          # 3.8
1530          LC_HAVE_FILE_F_INODE
1531          LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
1532
1533          # 3.9
1534          LC_HAVE_HLIST_FOR_EACH_3ARG
1535
1536          # 3.10
1537          LC_HAVE_ONLY_PROCFS_SEQ
1538          LC_BLKDEV_RELEASE_RETURN_INT
1539
1540          # 3.11
1541          LC_INVALIDATE_RANGE
1542          LC_HAVE_DIR_CONTEXT
1543          LC_D_COMPARE_5ARGS
1544          LC_HAVE_DCOUNT
1545
1546          # 3.12
1547          LC_OLDSIZE_TRUNCATE_PAGECACHE
1548          LC_KIOCB_KI_LEFT
1549
1550          #
1551          if test x$enable_server != xno ; then
1552                 LC_FUNC_DEV_SET_RDONLY
1553                 LC_STACK_SIZE
1554                 LC_QUOTA64
1555                 LC_QUOTA_CONFIG
1556          fi
1557 ])
1558
1559 #
1560 # LC_CONFIG_CLIENT
1561 #
1562 # Check whether to build the client side of Lustre
1563 #
1564 AC_DEFUN([LC_CONFIG_CLIENT],
1565 [AC_MSG_CHECKING([whether to build Lustre client support])
1566 AC_ARG_ENABLE([client],
1567         AC_HELP_STRING([--disable-client],
1568                         [disable Lustre client support]),
1569         [],[enable_client='yes'])
1570 AC_MSG_RESULT([$enable_client])
1571 ])
1572
1573 #
1574 # LC_CONFIG_LIBLUSTRE
1575 #
1576 # whether to build liblustre
1577 #
1578 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
1579 [AC_MSG_CHECKING([whether to build Lustre library])
1580 AC_ARG_ENABLE([liblustre],
1581         AC_HELP_STRING([--disable-liblustre],
1582                         [disable building of Lustre library]),
1583         [],[enable_liblustre=$with_sysio])
1584 AC_MSG_RESULT([$enable_liblustre])
1585 # only build sysio if liblustre is built
1586 with_sysio="$enable_liblustre"
1587
1588 AC_MSG_CHECKING([whether to build liblustre tests])
1589 AC_ARG_ENABLE([liblustre-tests],
1590         AC_HELP_STRING([--enable-liblustre-tests],
1591                         [enable liblustre tests, if --disable-tests is used]),
1592         [],[enable_liblustre_tests=$enable_tests])
1593 if test x$enable_liblustre != xyes ; then
1594    enable_liblustre_tests='no'
1595 fi
1596 AC_MSG_RESULT([$enable_liblustre_tests])
1597
1598 AC_MSG_CHECKING([whether to enable liblustre acl])
1599 AC_ARG_ENABLE([liblustre-acl],
1600         AC_HELP_STRING([--disable-liblustre-acl],
1601                         [disable ACL support for liblustre]),
1602         [],[enable_liblustre_acl=yes])
1603 AC_MSG_RESULT([$enable_liblustre_acl])
1604 if test x$enable_liblustre_acl = xyes ; then
1605   AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
1606 fi
1607
1608 #
1609 # --enable-mpitest
1610 #
1611 AC_ARG_ENABLE(mpitests,
1612         AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
1613                            [include mpi tests]),
1614         [
1615          enable_mpitests=yes
1616          case $enableval in
1617          yes)
1618                 MPICC_WRAPPER=mpicc
1619                 ;;
1620          no)
1621                 enable_mpitests=no
1622                 ;;
1623          *)
1624                 MPICC_WRAPPER=$enableval
1625                  ;;
1626          esac
1627         ],
1628         [
1629         MPICC_WRAPPER=mpicc
1630         enable_mpitests=yes
1631         ]
1632 )
1633
1634 if test x$enable_mpitests != xno; then
1635         AC_MSG_CHECKING([whether mpitests can be built])
1636         oldcc=$CC
1637         CC=$MPICC_WRAPPER
1638         AC_LINK_IFELSE(
1639             [AC_LANG_PROGRAM([[
1640                     #include <mpi.h>
1641                 ]],[[
1642                     int flag;
1643                     MPI_Initialized(&flag);
1644                 ]])],
1645             [
1646                     AC_MSG_RESULT([yes])
1647             ],[
1648                     AC_MSG_RESULT([no])
1649                     enable_mpitests=no
1650         ])
1651         CC=$oldcc
1652 fi
1653 AC_SUBST(MPICC_WRAPPER)
1654
1655 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
1656 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
1657
1658 LC_CONFIG_PINGER
1659 LC_CONFIG_LIBLUSTRE_RECOVERY
1660 ])
1661
1662 #
1663 # LC_CONFIG_QUOTA
1664 #
1665 # whether to enable quota support global control
1666 #
1667 AC_DEFUN([LC_CONFIG_QUOTA],
1668 [AC_ARG_ENABLE([quota],
1669         AC_HELP_STRING([--enable-quota],
1670                         [enable quota support]),
1671         [],[enable_quota='yes'])
1672 ])
1673
1674 AC_DEFUN([LC_QUOTA],
1675 [#check global
1676 LC_CONFIG_QUOTA
1677 #check for utils
1678 if test x$enable_quota != xno -a x$enable_utils != xno; then
1679 AC_CHECK_HEADER(sys/quota.h,
1680                 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
1681                 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
1682 fi
1683 ])
1684
1685 #
1686 # LC_CONFIG_SPLIT
1687 #
1688 # whether to enable split support
1689 #
1690 AC_DEFUN([LC_CONFIG_SPLIT],
1691 [AC_MSG_CHECKING([whether to enable split support])
1692 AC_ARG_ENABLE([split],
1693         AC_HELP_STRING([--enable-split],
1694                         [enable split support]),
1695         [],[enable_split='no'])
1696 AC_MSG_RESULT([$enable_split])
1697 if test x$enable_split != xno; then
1698    AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
1699 fi
1700 ])
1701
1702 #
1703 # LC_CONFIG_NODEMAP_PROC_DEBUG
1704 #
1705 # enable nodemap proc file debugging
1706 #
1707 AC_DEFUN([LC_NODEMAP_PROC_DEBUG],
1708 [AC_MSG_CHECKING([whether to enable nodemap proc debug])
1709 AC_ARG_ENABLE([nodemap_proc_debug],
1710         AC_HELP_STRING([--enable-nodemap-proc-debug],
1711                         [enable nodemap proc debug]),
1712         [],[enable_nodemap_proc_debug='no'])
1713 AC_MSG_RESULT([$enable_nodemap_proc_debug])
1714 if test x$enable_nodemap_proc_debug != xno; then
1715    AC_DEFINE(NODEMAP_PROC_DEBUG, 1, [enable nodemap proc debug support])
1716 fi
1717 ])
1718
1719 #
1720 # LC_LLITE_LLOOP_MODULE
1721 # lloop_llite.ko does not currently work with page sizes
1722 # of 64k or larger.
1723 #
1724 AC_DEFUN([LC_LLITE_LLOOP_MODULE],
1725 [AC_MSG_CHECKING([whether to enable llite_lloop module])
1726 LB_LINUX_TRY_COMPILE([
1727         #include <asm/page.h>
1728 ],[
1729         #if PAGE_SIZE >= 65536
1730         #error "PAGE_SIZE >= 65536"
1731         #endif
1732 ],[
1733         enable_llite_lloop_module='yes'
1734         AC_MSG_RESULT([yes])
1735 ],[
1736         enable_llite_lloop_module='no'
1737         AC_MSG_RESULT([no])
1738 ])
1739 ])
1740
1741 #
1742 # LC_OSD_ADDON
1743 #
1744 # configure support for optional OSD implementation
1745 #
1746 AC_DEFUN([LC_OSD_ADDON],
1747 [AC_MSG_CHECKING([for osd])
1748 AC_ARG_WITH([osd],
1749         AC_HELP_STRING([--with-osd=path],
1750                        [set path to optional osd]),
1751         [
1752                 case $with_osd in
1753                         no)     ENABLEOSDADDON=0
1754                                 ;;
1755                         *)      OSDADDON="${with_osd}"
1756                                 ENABLEOSDADDON=1
1757                                 ;;
1758                 esac
1759         ], [
1760                 ENABLEOSDADDON=0
1761         ])
1762 if test $ENABLEOSDADDON -eq 0; then
1763         AC_MSG_RESULT([no])
1764         OSDADDON=
1765 else
1766         OSDMODNAME=`basename $OSDADDON`
1767         if test -e $LUSTRE/$OSDMODNAME; then
1768                 AC_MSG_RESULT([can't link])
1769                 OSDADDON=
1770         elif ln -s $OSDADDON $LUSTRE/$OSDMODNAME; then
1771                 AC_MSG_RESULT([$OSDMODNAME])
1772                 OSDADDON="subdir-m += $OSDMODNAME"
1773         else
1774                 AC_MSG_RESULT([can't link])
1775                 OSDADDON=
1776         fi
1777 fi
1778 AC_SUBST(OSDADDON)
1779 ])
1780
1781 #
1782 # LC_CONFIGURE
1783 #
1784 # other configure checks
1785 #
1786 AC_DEFUN([LC_CONFIGURE],
1787 [LC_CONFIG_OBD_BUFFER_SIZE
1788
1789 if test $target_cpu == "i686" -o $target_cpu == "x86_64"; then
1790         CFLAGS="$CFLAGS -Werror"
1791 fi
1792
1793 # maximum MDS thread count
1794 LC_MDS_MAX_THREADS
1795
1796 # include/liblustre.h
1797 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
1798
1799 # liblustre/llite_lib.h
1800 AC_CHECK_HEADERS([xtio.h file.h])
1801
1802 # liblustre/dir.c
1803 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
1804
1805 # liblustre/lutil.c
1806 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
1807 AC_CHECK_FUNCS([inet_ntoa])
1808
1809 # libsysio/src/readlink.c
1810 LC_READLINK_SSIZE_T
1811
1812 # libcfs prng.c - depends on linux/types.h from liblustre/dir.c
1813 AC_CHECK_HEADERS([linux/random.h], [], [],
1814                  [#ifdef HAVE_LINUX_TYPES_H
1815                   # include <linux/types.h>
1816                   #endif
1817                  ])
1818
1819 # utils/llverfs.c
1820 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
1821
1822 # check for -lz support
1823 ZLIB=""
1824 AC_CHECK_LIB([z],
1825              [adler32],
1826              [AC_CHECK_HEADERS([zlib.h],
1827                                [ZLIB="-lz"
1828                                 AC_DEFINE([HAVE_ADLER], 1,
1829                                           [support alder32 checksum type])],
1830                                [AC_MSG_WARN([
1831
1832 No zlib-devel package found, unable to use adler32 checksum
1833 ])])],
1834              [AC_MSG_WARN([
1835
1836 No zlib package found, unable to use adler32 checksum
1837 ])]
1838 )
1839 AC_SUBST(ZLIB)
1840
1841 SELINUX=""
1842 AC_CHECK_LIB([selinux],
1843                 [is_selinux_enabled],
1844                 [AC_CHECK_HEADERS([selinux.h],
1845                                 [SELINUX="-lselinux"
1846                                 AC_DEFINE([HAVE_SELINUX], 1,
1847                                                 [support for selinux ])],
1848                                 [AC_MSG_WARN([
1849
1850 No selinux-devel package found, unable to build selinux enabled tools
1851 ])])],
1852                 [AC_MSG_WARN([
1853
1854 No selinux package found, unable to build selinux enabled tools
1855 ])]
1856 )
1857 AC_SUBST(SELINUX)
1858
1859 # Super safe df
1860 AC_ARG_ENABLE([mindf],
1861       AC_HELP_STRING([--enable-mindf],
1862                       [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
1863       [],[])
1864 if test "$enable_mindf" = "yes" ;  then
1865       AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
1866 fi
1867
1868 AC_ARG_ENABLE([fail_alloc],
1869         AC_HELP_STRING([--disable-fail-alloc],
1870                 [disable randomly alloc failure]),
1871         [],[enable_fail_alloc=yes])
1872 AC_MSG_CHECKING([whether to randomly failing memory alloc])
1873 AC_MSG_RESULT([$enable_fail_alloc])
1874 if test x$enable_fail_alloc != xno ; then
1875         AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
1876 fi
1877
1878 AC_ARG_ENABLE([invariants],
1879         AC_HELP_STRING([--enable-invariants],
1880                 [enable invariant checking (cpu intensive)]),
1881         [],[])
1882 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
1883 AC_MSG_RESULT([$enable_invariants])
1884 if test x$enable_invariants = xyes ; then
1885         AC_DEFINE([CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK], 1, [enable invariant checking])
1886 fi
1887
1888 AC_ARG_ENABLE([lu_ref],
1889         AC_HELP_STRING([--enable-lu_ref],
1890                 [enable lu_ref reference tracking code]),
1891         [],[])
1892 AC_MSG_CHECKING([whether to track references with lu_ref])
1893 AC_MSG_RESULT([$enable_lu_ref])
1894 if test x$enable_lu_ref = xyes ; then
1895         AC_DEFINE([USE_LU_REF], 1, [enable lu_ref reference tracking code])
1896 fi
1897
1898 AC_ARG_ENABLE([pgstate-track],
1899               AC_HELP_STRING([--enable-pgstate-track],
1900                              [enable page state tracking]),
1901               [enable_pgstat_track='yes'],[])
1902 AC_MSG_CHECKING([whether to enable page state tracking])
1903 AC_MSG_RESULT([$enable_pgstat_track])
1904 if test x$enable_pgstat_track = xyes ; then
1905         AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
1906                   [enable page state tracking code])
1907 fi
1908 ])
1909
1910 #
1911 # LC_CONDITIONALS
1912 #
1913 # AM_CONDITIONALS for lustre
1914 #
1915 AC_DEFUN([LC_CONDITIONALS],
1916 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
1917 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
1918 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
1919 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
1920 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
1921 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
1922 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
1923 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
1924 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
1925 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
1926 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
1927 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
1928 AM_CONDITIONAL(LLITE_LLOOP, test x$enable_llite_lloop_module = xyes)
1929 ])
1930
1931 #
1932 # LC_CONFIG_FILES
1933 #
1934 # files that should be generated with AC_OUTPUT
1935 #
1936 AC_DEFUN([LC_CONFIG_FILES],
1937 [AC_CONFIG_FILES([
1938 lustre/Makefile
1939 lustre/autoMakefile
1940 lustre/autoconf/Makefile
1941 lustre/conf/Makefile
1942 lustre/contrib/Makefile
1943 lustre/doc/Makefile
1944 lustre/include/Makefile
1945 lustre/include/lustre_ver.h
1946 lustre/include/linux/Makefile
1947 lustre/include/darwin/Makefile
1948 lustre/include/lustre/Makefile
1949 lustre/kernel_patches/targets/2.6-rhel6.target
1950 lustre/kernel_patches/targets/2.6-rhel5.target
1951 lustre/kernel_patches/targets/2.6-sles11.target
1952 lustre/kernel_patches/targets/3.0-sles11.target
1953 lustre/kernel_patches/targets/3.0-sles11sp3.target
1954 lustre/kernel_patches/targets/2.6-fc11.target
1955 lustre/kernel_patches/targets/2.6-fc12.target
1956 lustre/kernel_patches/targets/2.6-fc15.target
1957 lustre/kernel_patches/targets/3.x-fc18.target
1958 lustre/ldlm/Makefile
1959 lustre/fid/Makefile
1960 lustre/fid/autoMakefile
1961 lustre/liblustre/Makefile
1962 lustre/liblustre/tests/Makefile
1963 lustre/liblustre/tests/mpi/Makefile
1964 lustre/llite/Makefile
1965 lustre/llite/autoMakefile
1966 lustre/lclient/Makefile
1967 lustre/lov/Makefile
1968 lustre/lov/autoMakefile
1969 lustre/mdc/Makefile
1970 lustre/mdc/autoMakefile
1971 lustre/lmv/Makefile
1972 lustre/lmv/autoMakefile
1973 lustre/lfsck/Makefile
1974 lustre/lfsck/autoMakefile
1975 lustre/mdt/Makefile
1976 lustre/mdt/autoMakefile
1977 lustre/nodemap/Makefile
1978 lustre/nodemap/autoMakefile
1979 lustre/mdd/Makefile
1980 lustre/mdd/autoMakefile
1981 lustre/fld/Makefile
1982 lustre/fld/autoMakefile
1983 lustre/obdclass/Makefile
1984 lustre/obdclass/autoMakefile
1985 lustre/obdclass/linux/Makefile
1986 lustre/obdecho/Makefile
1987 lustre/obdecho/autoMakefile
1988 lustre/ofd/Makefile
1989 lustre/ofd/autoMakefile
1990 lustre/osc/Makefile
1991 lustre/osc/autoMakefile
1992 lustre/ost/Makefile
1993 lustre/ost/autoMakefile
1994 lustre/osd-ldiskfs/Makefile
1995 lustre/osd-ldiskfs/autoMakefile
1996 lustre/osd-zfs/Makefile
1997 lustre/osd-zfs/autoMakefile
1998 lustre/mgc/Makefile
1999 lustre/mgc/autoMakefile
2000 lustre/mgs/Makefile
2001 lustre/mgs/autoMakefile
2002 lustre/target/Makefile
2003 lustre/ptlrpc/Makefile
2004 lustre/ptlrpc/autoMakefile
2005 lustre/ptlrpc/gss/Makefile
2006 lustre/ptlrpc/gss/autoMakefile
2007 lustre/quota/Makefile
2008 lustre/quota/autoMakefile
2009 lustre/scripts/Makefile
2010 lustre/tests/Makefile
2011 lustre/tests/mpi/Makefile
2012 lustre/utils/Makefile
2013 lustre/utils/gss/Makefile
2014 lustre/osp/Makefile
2015 lustre/osp/autoMakefile
2016 lustre/lod/Makefile
2017 lustre/lod/autoMakefile
2018 lustre/obdclass/darwin/Makefile
2019 ])
2020 ])