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, $OBD_BUFFER_SIZE, [IOCTL Buffer Size])
  66 ])
  67
  68 #
  69 # LC_READLINK_SSIZE_T
  70 #
  71 AC_DEFUN([LC_READLINK_SSIZE_T],
  72 [AC_MSG_CHECKING([if readlink returns ssize_t])
  73 AC_TRY_COMPILE([
  74         #include <unistd.h>
  75 ],[
  76         ssize_t readlink(const char *, char *, size_t);
  77 ],[
  78         AC_MSG_RESULT([yes])
  79         AC_DEFINE(HAVE_POSIX_1003_READLINK, 1, [readlink returns ssize_t])
  80 ],[
  81         AC_MSG_RESULT([no])
  82 ])
  83 ])
  84
  85 #
  86 # LC_FUNC_DEV_SET_RDONLY
  87 #
  88 # check whether dev_set_rdonly is exported.  This is needed until we
  89 # have another mechanism to fence IO from the underlying device.
  90 #
  91 AC_DEFUN([LC_FUNC_DEV_SET_RDONLY],
  92 [LB_CHECK_SYMBOL_EXPORT([dev_set_rdonly],
  93 [block/ll_rw_block.c,block/blk-core.c],[
  94         AC_DEFINE(HAVE_DEV_SET_RDONLY, 1, [kernel exports dev_set_rdonly])
  95 ],[
  96         AC_MSG_WARN([kernel missing dev_set_rdonly patch for testing])
  97 ])
  98 ])
  99
 100 #
 101 # Ensure stack size big than 8k in Lustre server (all kernels)
 102 #
 103 AC_DEFUN([LC_STACK_SIZE],
 104 [AC_MSG_CHECKING([stack size big than 8k])
 105 LB_LINUX_TRY_COMPILE([
 106         #include <linux/thread_info.h>
 107 ],[
 108         #if THREAD_SIZE < 8192
 109         #error "stack size < 8192"
 110         #endif
 111 ],[
 112         AC_MSG_RESULT(yes)
 113 ],[
 114         AC_MSG_ERROR([Lustre requires that Linux is configured with at least a 8KB stack.])
 115 ])
 116 ])
 117
 118 #
 119 # Allow the user to set the MDS thread upper limit
 120 #
 121 AC_DEFUN([LC_MDS_MAX_THREADS],
 122 [
 123         AC_ARG_WITH([mds_max_threads],
 124         AC_HELP_STRING([--with-mds-max-threads=count],
 125                        [maximum threads available on the MDS: (default=512)]),
 126         [
 127                 MDS_THREAD_COUNT=$with_mds_max_threads
 128                 AC_DEFINE_UNQUOTED(MDS_MAX_THREADS, $MDS_THREAD_COUNT, [maximum number of MDS threads])
 129         ])
 130 ])
 131
 132 #
 133 # LC_CONFIG_PINGER
 134 #
 135 # the pinger is temporary, until we have the recovery node in place
 136 #
 137 AC_DEFUN([LC_CONFIG_PINGER],
 138 [AC_MSG_CHECKING([whether to enable pinger support])
 139 AC_ARG_ENABLE([pinger],
 140         AC_HELP_STRING([--disable-pinger],
 141                         [disable recovery pinger support]),
 142         [],[enable_pinger='yes'])
 143 AC_MSG_RESULT([$enable_pinger])
 144 if test x$enable_pinger != xno ; then
 145   AC_DEFINE(ENABLE_PINGER, 1, Use the Pinger)
 146 fi
 147 ])
 148
 149 #
 150 # LC_CONFIG_CHECKSUM
 151 #
 152 # do checksum of bulk data between client and OST
 153 #
 154 AC_DEFUN([LC_CONFIG_CHECKSUM],
 155 [AC_MSG_CHECKING([whether to enable data checksum support])
 156 AC_ARG_ENABLE([checksum],
 157        AC_HELP_STRING([--disable-checksum],
 158                        [disable data checksum support]),
 159        [],[enable_checksum='yes'])
 160 AC_MSG_RESULT([$enable_checksum])
 161 if test x$enable_checksum != xno ; then
 162   AC_DEFINE(ENABLE_CHECKSUM, 1, do data checksums)
 163 fi
 164 ])
 165
 166 #
 167 # LC_CONFIG_LIBLUSTRE_RECOVERY
 168 #
 169 AC_DEFUN([LC_CONFIG_LIBLUSTRE_RECOVERY],
 170 [AC_MSG_CHECKING([whether to enable liblustre recovery support])
 171 AC_ARG_ENABLE([liblustre-recovery],
 172         AC_HELP_STRING([--disable-liblustre-recovery],
 173                         [disable liblustre recovery support]),
 174         [],[enable_liblustre_recovery='yes'])
 175 AC_MSG_RESULT([$enable_liblustre_recovery])
 176 if test x$enable_liblustre_recovery != xno ; then
 177   AC_DEFINE(ENABLE_LIBLUSTRE_RECOVERY, 1, Liblustre Can Recover)
 178 fi
 179 ])
 180
 181 #
 182 # LC_CONFIG_HEALTH_CHECK_WRITE
 183 #
 184 # Turn off the actual write to the disk
 185 #
 186 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE],
 187 [AC_MSG_CHECKING([whether to enable a write with the health check])
 188 AC_ARG_ENABLE([health_write],
 189         AC_HELP_STRING([--enable-health_write],
 190                         [enable disk writes when doing health check]),
 191         [],[enable_health_write='no'])
 192 AC_MSG_RESULT([$enable_health_write])
 193 if test x$enable_health_write != xno ; then
 194   AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, Write when Checking Health)
 195 fi
 196 ])
 197
 198 AC_DEFUN([LC_CONFIG_LRU_RESIZE],
 199 [AC_MSG_CHECKING([whether to enable lru self-adjusting])
 200 AC_ARG_ENABLE([lru_resize],
 201         AC_HELP_STRING([--enable-lru-resize],
 202                         [enable lru resize support]),
 203         [],[enable_lru_resize='yes'])
 204 AC_MSG_RESULT([$enable_lru_resize])
 205 if test x$enable_lru_resize != xno; then
 206    AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])
 207 fi
 208 ])
 209
 210 #
 211 # Quota support. The kernel must support CONFIG_QUOTA.
 212 #
 213 AC_DEFUN([LC_QUOTA_CONFIG],
 214 [LB_LINUX_CONFIG_IM([QUOTA],[],[
 215         AC_MSG_ERROR([Lustre quota requires that CONFIG_QUOTA is enabled in your kernel.])
 216         ])
 217 ])
 218
 219 # truncate_complete_page() has never been exported from an upstream kernel
 220 # remove_from_page_cache() was exported between 2.6.35 and 2.6.38
 221 # delete_from_page_cache() is exported from 2.6.39
 222 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE_PAGE],
 223          [LB_CHECK_SYMBOL_EXPORT([truncate_complete_page],
 224                                  [mm/truncate.c],
 225                                  [AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
 226                                             [kernel export truncate_complete_page])])
 227           LB_CHECK_SYMBOL_EXPORT([remove_from_page_cache],
 228                                  [mm/filemap.c],
 229                                  [AC_DEFINE(HAVE_REMOVE_FROM_PAGE_CACHE, 1,
 230                                             [kernel export remove_from_page_cache])])
 231           LB_CHECK_SYMBOL_EXPORT([delete_from_page_cache],
 232                                  [mm/filemap.c],
 233                                  [AC_DEFINE(HAVE_DELETE_FROM_PAGE_CACHE, 1,
 234                                             [kernel export delete_from_page_cache])])
 235          ])
 236
 237 #
 238 # LC_CAPA_CRYPTO
 239 #
 240 AC_DEFUN([LC_CAPA_CRYPTO],
 241 [LB_LINUX_CONFIG_IM([CRYPTO],[],[
 242         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])
 243 ])
 244 LB_LINUX_CONFIG_IM([CRYPTO_HMAC],[],[
 245         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])
 246 ])
 247 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],[
 248         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])
 249 ])
 250 ])
 251
 252 #
 253 # LC_CONFIG_RMTCLIENT
 254 #
 255 dnl FIXME
 256 dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
 257 dnl FIXME
 258 AC_DEFUN([LC_CONFIG_RMTCLIENT],
 259 [LB_LINUX_CONFIG_IM([CRYPTO_AES],[],[
 260         AC_MSG_WARN([Lustre remote client require that CONFIG_CRYPTO_AES is enabled in your kernel.])
 261 ])
 262 ])
 263
 264 #
 265 # LC_CONFIG_GSS_KEYRING (default enabled, if gss is enabled)
 266 #
 267 AC_DEFUN([LC_CONFIG_GSS_KEYRING],
 268 [AC_MSG_CHECKING([whether to enable gss keyring backend])
 269  AC_ARG_ENABLE([gss_keyring],
 270                [AC_HELP_STRING([--disable-gss-keyring],
 271                                [disable gss keyring backend])],
 272                [],[enable_gss_keyring='yes'])
 273  AC_MSG_RESULT([$enable_gss_keyring])
 274
 275  if test x$enable_gss_keyring != xno; then
 276         LB_LINUX_CONFIG_IM([KEYS],[],
 277                            [AC_MSG_ERROR([GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.])])
 278
 279         AC_CHECK_LIB([keyutils], [keyctl_search], [],
 280                      [AC_MSG_ERROR([libkeyutils is not found, which is required by gss keyring backend])],)
 281
 282         AC_DEFINE([HAVE_GSS_KEYRING], [1],
 283                   [Define this if you enable gss keyring backend])
 284  fi
 285 ])
 286
 287 AC_DEFUN([LC_CONFIG_SUNRPC],
 288 [LB_LINUX_CONFIG_IM([SUNRPC],[],
 289                     [AC_MSG_ERROR([kernel SUNRPC support is required by using GSS.])])
 290 ])
 291
 292 #
 293 # LC_CONFIG_GSS (default disabled)
 294 #
 295 # Build gss and related tools of Lustre. Currently both kernel and user space
 296 # parts are depend on linux platform.
 297 #
 298 AC_DEFUN([LC_CONFIG_GSS],
 299 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
 300  AC_ARG_ENABLE([gss],
 301                [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
 302                [],[enable_gss='no'])
 303  AC_MSG_RESULT([$enable_gss])
 304
 305  if test x$enable_gss == xyes; then
 306         LC_CONFIG_GSS_KEYRING
 307         LC_CONFIG_SUNRPC
 308
 309         AC_DEFINE([HAVE_GSS], [1], [Define this if you enable gss])
 310
 311         LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
 312                            [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
 313         LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
 314                            [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
 315         LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
 316                            [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
 317         LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
 318                            [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
 319
 320         AC_CHECK_LIB([gssapi], [gss_export_lucid_sec_context],
 321                      [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"],
 322                      [AC_CHECK_LIB([gssglue], [gss_export_lucid_sec_context],
 323                                    [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue"],
 324                                    [AC_MSG_ERROR([libgssapi or libgssglue is not found, which is required by GSS.])])],)
 325
 326         AC_SUBST(GSSAPI_LIBS)
 327
 328         AC_KERBEROS_V5
 329  fi
 330 ])
 331
 332 # 2.6.12
 333
 334 # ~2.6.12 merge patch from oracle to convert tree_lock from spinlock to rwlock
 335 # yet tree_lock is converted from rwlock to spin_lock since v2.6.26
 336 AC_DEFUN([LC_RW_TREE_LOCK],
 337 [AC_MSG_CHECKING([if kernel has tree_lock as rwlock])
 338 tmp_flags="$EXTRA_KCFLAGS"
 339 EXTRA_KCFLAGS="-Werror"
 340 LB_LINUX_TRY_COMPILE([
 341         #include <linux/fs.h>
 342 ],[
 343         struct address_space a;
 344
 345         write_lock(&a.tree_lock);
 346 ],[
 347         AC_MSG_RESULT([yes])
 348         AC_DEFINE(HAVE_RW_TREE_LOCK, 1, [kernel has tree_lock as rw_lock])
 349 ],[
 350         AC_MSG_RESULT([no])
 351 ])
 352 EXTRA_KCFLAGS="$tmp_flags"
 353 ])
 354
 355 #2.6.18 + RHEL5 (fc6)
 356
 357 # raid5-zerocopy patch
 358
 359 #
 360 # LC_PAGE_CONSTANT
 361 #
 362 # In order to support raid5 zerocopy patch, we have to patch the kernel to make
 363 # it support constant page, which means the page won't be modified during the
 364 # IO.
 365 #
 366 AC_DEFUN([LC_PAGE_CONSTANT],
 367 [AC_MSG_CHECKING([if kernel have PageConstant defined])
 368 LB_LINUX_TRY_COMPILE([
 369         #include <linux/mm.h>
 370         #include <linux/page-flags.h>
 371 ],[
 372         #ifndef PG_constant
 373         #error "Have no raid5 zcopy patch"
 374         #endif
 375 ],[
 376         AC_MSG_RESULT(yes)
 377         AC_DEFINE(HAVE_PAGE_CONSTANT, 1, [kernel have PageConstant supported])
 378 ],[
 379         AC_MSG_RESULT(no);
 380 ])
 381 ])
 382
 383 # 2.6.24
 384
 385 # 2.6.24 has bio_endio with 2 args
 386 AC_DEFUN([LC_BIO_ENDIO_2ARG],
 387 [AC_MSG_CHECKING([if kernel has bio_endio with 2 args])
 388 LB_LINUX_TRY_COMPILE([
 389         #include <linux/bio.h>
 390 ],[
 391         bio_endio(NULL, 0);
 392 ], [
 393         AC_MSG_RESULT([yes])
 394         AC_DEFINE(HAVE_BIO_ENDIO_2ARG, 1,
 395                 [kernel has bio_endio with 2 args])
 396 ],[
 397         AC_MSG_RESULT([no])
 398 ])
 399 ])
 400
 401 # 2.6.24 removes long aged procfs entry -> deleted member
 402 AC_DEFUN([LC_PROCFS_DELETED],
 403 [AC_MSG_CHECKING([if kernel has deleted member in procfs entry struct])
 404 LB_LINUX_TRY_COMPILE([
 405         #include <linux/proc_fs.h>
 406 ],[
 407         struct proc_dir_entry pde;
 408
 409         pde.deleted = sizeof(pde);
 410 ], [
 411         AC_MSG_RESULT([yes])
 412         AC_DEFINE(HAVE_PROCFS_DELETED, 1,
 413                 [kernel has deleted member in procfs entry struct])
 414 ],[
 415         AC_MSG_RESULT([no])
 416 ])
 417 ])
 418
 419 #
 420 # 2.6.27
 421 #
 422
 423 AC_DEFUN([LC_INODE_PERMISION_2ARGS],
 424 [AC_MSG_CHECKING([inode_operations->permission has two args])
 425 LB_LINUX_TRY_COMPILE([
 426         #include <linux/fs.h>
 427 ],[
 428         struct inode *inode __attribute__ ((unused));
 429
 430         inode = NULL;
 431         inode->i_op->permission(NULL, 0);
 432 ],[
 433         AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
 434                   [inode_operations->permission has two args])
 435         AC_MSG_RESULT([yes])
 436 ],[
 437         AC_MSG_RESULT([no])
 438 ])
 439 ])
 440
 441 # 2.6.27 use 5th parameter in quota_on for remount.
 442 AC_DEFUN([LC_QUOTA_ON_5ARGS],
 443 [AC_MSG_CHECKING([quota_on needs 5 parameters])
 444 LB_LINUX_TRY_COMPILE([
 445         #include <linux/fs.h>
 446         #include <linux/quota.h>
 447 ],[
 448         struct quotactl_ops *qop = NULL;
 449         qop->quota_on(NULL, 0, 0, NULL, 0);
 450 ],[
 451         AC_DEFINE(HAVE_QUOTA_ON_5ARGS, 1,
 452                 [quota_on needs 5 paramters])
 453         AC_MSG_RESULT([yes])
 454 ],[
 455         AC_MSG_RESULT([no])
 456 ])
 457 ])
 458
 459 # 2.6.27 use 3th parameter in quota_off for remount.
 460 AC_DEFUN([LC_QUOTA_OFF_3ARGS],
 461 [AC_MSG_CHECKING([quota_off needs 3 parameters])
 462 LB_LINUX_TRY_COMPILE([
 463         #include <linux/fs.h>
 464         #include <linux/quota.h>
 465 ],[
 466         struct quotactl_ops *qop = NULL;
 467         qop->quota_off(NULL, 0, 0);
 468 ],[
 469         AC_DEFINE(HAVE_QUOTA_OFF_3ARGS, 1,
 470                 [quota_off needs 3 paramters])
 471         AC_MSG_RESULT([yes])
 472 ],[
 473         AC_MSG_RESULT([no])
 474 ])
 475 ])
 476
 477 # 2.6.34 has quotactl_ops->[sg]et_dqblk that take struct fs_disk_quota
 478 AC_DEFUN([LC_HAVE_DQUOT_FS_DISK_QUOTA],
 479 tmp_flags="$EXTRA_KCFLAGS"
 480 EXTRA_KCFLAGS="-Werror"
 481 [AC_MSG_CHECKING([if quotactl_ops.set_dqblk takes struct fs_disk_quota])
 482 LB_LINUX_TRY_COMPILE([
 483         #include <linux/fs.h>
 484         #include <linux/quota.h>
 485 ],[
 486         struct quotactl_ops qops = {};
 487         struct fs_disk_quota fdq;
 488         qops.set_dqblk(NULL, 0, 0, &fdq);
 489 ],[
 490         AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1, [quotactl_ops.set_dqblk takes struct fs_disk_quota])
 491         AC_MSG_RESULT([yes])
 492 ],[
 493         AC_MSG_RESULT([no])
 494 ])
 495 EXTRA_KCFLAGS="$tmp_flags"
 496 ])
 497
 498 # 2.6.34 has renamed dquot options to dquot_*, check for dquot_suspend
 499 AC_DEFUN([LC_HAVE_DQUOT_SUSPEND],
 500 [AC_MSG_CHECKING([if dquot_suspend is defined])
 501 LB_LINUX_TRY_COMPILE([
 502         #include <linux/quotaops.h>
 503 ],[
 504         dquot_suspend(NULL, -1);
 505 ],[
 506         AC_DEFINE(HAVE_DQUOT_SUSPEND, 1, [dquot_suspend is defined])
 507         AC_MSG_RESULT([yes])
 508 ],[
 509         AC_MSG_RESULT([no])
 510 ])
 511 ])
 512
 513 # 2.6.27.15-2 sles11
 514
 515 # 2.6.27 sles11 remove the bi_hw_segments
 516 AC_DEFUN([LC_BI_HW_SEGMENTS],
 517 [AC_MSG_CHECKING([struct bio has a bi_hw_segments field])
 518 LB_LINUX_TRY_COMPILE([
 519         #include <linux/bio.h>
 520 ],[
 521         struct bio io;
 522         io.bi_hw_segments = sizeof(io);
 523 ],[
 524         AC_DEFINE(HAVE_BI_HW_SEGMENTS, 1,
 525                 [struct bio has a bi_hw_segments field])
 526         AC_MSG_RESULT([yes])
 527 ],[
 528         AC_MSG_RESULT([no])
 529 ])
 530 ])
 531
 532 #
 533 # 2.6.27 sles11 move the quotaio_v1{2}.h from include/linux to fs
 534 # 2.6.32 move the quotaio_v1{2}.h from fs to fs/quota
 535 AC_DEFUN([LC_HAVE_QUOTAIO_H],
 536 [LB_CHECK_FILE([$LINUX/include/linux/quotaio_v2.h],[
 537         AC_DEFINE(HAVE_QUOTAIO_H, 1,
 538                 [kernel has include/linux/quotaio_v2.h])
 539 ],[LB_CHECK_FILE([$LINUX/fs/quotaio_v2.h],[
 540                AC_DEFINE(HAVE_FS_QUOTAIO_H, 1,
 541                 [kernel has fs/quotaio_v1.h])
 542 ],[LB_CHECK_FILE([$LINUX/fs/quota/quotaio_v2.h],[
 543                AC_DEFINE(HAVE_FS_QUOTA_QUOTAIO_H, 1,
 544                 [kernel has fs/quota/quotaio_v2.h])
 545 ],[
 546         AC_MSG_RESULT([no])
 547 ])
 548 ])
 549 ])
 550 ])
 551
 552 # 2.6.32
 553
 554 # 2.6.32 replaces 2 functions blk_queue_max_phys_segments and blk_queue_max_hw_segments by blk_queue_max_segments
 555 AC_DEFUN([LC_BLK_QUEUE_MAX_SEGMENTS],
 556 [AC_MSG_CHECKING([if blk_queue_max_segments is defined])
 557 LB_LINUX_TRY_COMPILE([
 558         #include <linux/blkdev.h>
 559 ],[
 560         blk_queue_max_segments(NULL, 0);
 561 ],[
 562         AC_MSG_RESULT(yes)
 563         AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
 564                   [blk_queue_max_segments is defined])
 565 ],[
 566         AC_MSG_RESULT(no)
 567 ])
 568 ])
 569
 570 #
 571 # LC_QUOTA64
 572 #
 573 # Check if kernel has been patched for 64-bit quota limits support.
 574 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
 575 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
 576 # that in the absence of quotaio_v1.h in the kernel headers.
 577 #
 578 AC_DEFUN([LC_QUOTA64],[
 579         AC_MSG_CHECKING([if kernel has 64-bit quota limits support])
 580 tmp_flags="$EXTRA_KCFLAGS"
 581 EXTRA_KCFLAGS="-I$LINUX/fs"
 582         LB_LINUX_TRY_COMPILE([
 583                 #include <linux/kernel.h>
 584                 #include <linux/fs.h>
 585                 #if defined(HAVE_FS_QUOTA_QUOTAIO_H)
 586                 # include <quota/quotaio_v2.h>
 587                 struct v2r1_disk_dqblk dqblk_r1;
 588                 #else
 589                 #include <linux/quota.h>
 590                 int ver = QFMT_VFS_V1;
 591                 #endif
 592         ],[],[
 593                 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
 594                 AC_MSG_RESULT([yes])
 595         ],[
 596                 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
 597                         AC_MSG_ERROR([You have got no 64-bit kernel quota support.])
 598                 ],[])
 599                 AC_MSG_RESULT([no])
 600         ])
 601 EXTRA_KCFLAGS=$tmp_flags
 602 ])
 603
 604 #
 605 # 2.6.36 fs_struct.lock use spinlock instead of rwlock.
 606 #
 607 AC_DEFUN([LC_FS_STRUCT_RWLOCK],
 608 [AC_MSG_CHECKING([if fs_struct.lock use rwlock])
 609 LB_LINUX_TRY_COMPILE([
 610         #include <asm/atomic.h>
 611         #include <linux/spinlock.h>
 612         #include <linux/fs_struct.h>
 613 ],[
 614         ((struct fs_struct *)0)->lock = (rwlock_t){ 0 };
 615 ],[
 616         AC_DEFINE(HAVE_FS_STRUCT_RWLOCK, 1,
 617                   [fs_struct.lock use rwlock])
 618         AC_MSG_RESULT([yes])
 619 ],[
 620         AC_MSG_RESULT([no])
 621 ])
 622 ])
 623
 624 #
 625 # 2.6.36 super_operations add evict_inode method. it hybird of
 626 # delete_inode & clear_inode.
 627 #
 628 AC_DEFUN([LC_SBOPS_EVICT_INODE],
 629 [AC_MSG_CHECKING([if super_operations.evict_inode exist])
 630 LB_LINUX_TRY_COMPILE([
 631         #include <linux/fs.h>
 632 ],[
 633         ((struct super_operations *)0)->evict_inode(NULL);
 634 ],[
 635         AC_DEFINE(HAVE_SBOPS_EVICT_INODE, 1,
 636                 [super_operations.evict_inode() is exist in kernel])
 637         AC_MSG_RESULT([yes])
 638 ],[
 639         AC_MSG_RESULT([no])
 640 ])
 641 ])
 642
 643 #
 644 # 2.6.35 file_operations.fsync taken 2 arguments.
 645 # 3.0.0 file_operations.fsync takes 4 arguments.
 646 #
 647 AC_DEFUN([LC_FILE_FSYNC],
 648 [AC_MSG_CHECKING([if file_operations.fsync takes 4 or 2 arguments])
 649 LB_LINUX_TRY_COMPILE([
 650         #include <linux/fs.h>
 651 ],[
 652         ((struct file_operations *)0)->fsync(NULL, 0, 0, 0);
 653 ],[
 654         AC_DEFINE(HAVE_FILE_FSYNC_4ARGS, 1,
 655                 [file_operations.fsync takes 4 arguments])
 656         AC_MSG_RESULT([yes, 4 args])
 657 ],[
 658         LB_LINUX_TRY_COMPILE([
 659                 #include <linux/fs.h>
 660         ],[
 661            ((struct file_operations *)0)->fsync(NULL, 0);
 662         ],[
 663                 AC_DEFINE(HAVE_FILE_FSYNC_2ARGS, 1,
 664                         [file_operations.fsync takes 2 arguments])
 665                 AC_MSG_RESULT([yes, 2 args])
 666         ],[
 667                 AC_MSG_RESULT([no])
 668         ])
 669 ])
 670 ])
 671
 672 #
 673 # 2.6.37 remove kernel_locked
 674 #
 675 AC_DEFUN([LC_KERNEL_LOCKED],
 676 [AC_MSG_CHECKING([if kernel_locked is defined])
 677 LB_LINUX_TRY_COMPILE([
 678         #include <linux/smp_lock.h>
 679 ],[
 680         kernel_locked();
 681 ],[
 682         AC_MSG_RESULT([yes])
 683         AC_DEFINE(HAVE_KERNEL_LOCKED, 1,
 684                 [kernel_locked is defined])
 685 ],[
 686         AC_MSG_RESULT([no])
 687 ])
 688 ])
 689
 690 #
 691 # 2.6.38 dentry_operations.d_compare() taken 7 arguments.
 692 #
 693 AC_DEFUN([LC_D_COMPARE_7ARGS],
 694 [AC_MSG_CHECKING([if d_compare taken 7 arguments])
 695 LB_LINUX_TRY_COMPILE([
 696         #include <linux/dcache.h>
 697 ],[
 698         ((struct dentry_operations*)0)->d_compare(NULL,NULL,NULL,NULL,0,NULL,NULL);
 699 ],[
 700         AC_DEFINE(HAVE_D_COMPARE_7ARGS, 1,
 701                 [d_compare need 7 arguments])
 702         AC_MSG_RESULT([yes])
 703 ],[
 704         AC_MSG_RESULT([no])
 705 ])
 706 ])
 707
 708 #
 709 # 2.6.38 dentry_operations.d_delete() defined 'const' for 1st parameter.
 710 #
 711 AC_DEFUN([LC_D_DELETE_CONST],
 712 [AC_MSG_CHECKING([if d_delete has const declare on first parameter])
 713 tmp_flags="$EXTRA_KCFLAGS"
 714 EXTRA_KCFLAGS="-Werror"
 715 LB_LINUX_TRY_COMPILE([
 716         #include <linux/dcache.h>
 717 ],[
 718         const struct dentry *d = NULL;
 719         ((struct dentry_operations*)0)->d_delete(d);
 720 ],[
 721         AC_DEFINE(HAVE_D_DELETE_CONST, const,
 722                 [d_delete first parameter declared const])
 723         AC_MSG_RESULT([yes])
 724 ],[
 725         AC_DEFINE(HAVE_D_DELETE_CONST, , [])
 726         AC_MSG_RESULT([no])
 727 ])
 728 EXTRA_KCFLAGS="$tmp_flags"
 729 ])
 730
 731 #
 732 # 2.6.38 dcache_lock removed. rcu-walk commited.
 733 #
 734 AC_DEFUN([LC_DCACHE_LOCK],
 735 [AC_MSG_CHECKING([if dcache_lock is exist])
 736 LB_LINUX_TRY_COMPILE([
 737         #include <linux/dcache.h>
 738 ],[
 739         spin_lock(&dcache_lock);
 740 ],[
 741         AC_DEFINE(HAVE_DCACHE_LOCK, 1,
 742                 [dcache_lock is exist])
 743         AC_MSG_RESULT([yes])
 744 ],[
 745         AC_MSG_RESULT([no])
 746 ])
 747 ])
 748
 749 #
 750 # 2.6.38 inode.i_rcu added.
 751 #
 752 AC_DEFUN([LC_INODE_I_RCU],
 753 [AC_MSG_CHECKING([if inode.i_rcu exists])
 754 LB_LINUX_TRY_COMPILE([
 755         #include <linux/fs.h>
 756 ],[
 757         struct inode ino;
 758         struct rcu_head rcu = {};
 759         ino.i_rcu = rcu;
 760 ],[
 761         AC_DEFINE(HAVE_INODE_I_RCU, 1,
 762                 [inode.i_rcu exists])
 763         AC_MSG_RESULT([yes])
 764 ],[
 765         AC_MSG_RESULT([no])
 766 ])
 767 ])
 768
 769 #
 770 # 2.6.38 export blkdev_get_by_dev
 771 #
 772 AC_DEFUN([LC_BLKDEV_GET_BY_DEV],
 773 [LB_CHECK_SYMBOL_EXPORT([blkdev_get_by_dev],
 774 [fs/block_dev.c],[
 775 AC_DEFINE(HAVE_BLKDEV_GET_BY_DEV, 1,
 776             [blkdev_get_by_dev is exported by the kernel])
 777 ],[
 778 ])
 779 ])
 780
 781 #
 782 # 2.6.38 use path as 4th parameter in quota_on.
 783 #
 784 AC_DEFUN([LC_QUOTA_ON_USE_PATH],
 785 [AC_MSG_CHECKING([quota_on use path as parameter])
 786 tmp_flags="$EXTRA_KCFLAGS"
 787 EXTRA_KCFLAGS="-Werror"
 788 LB_LINUX_TRY_COMPILE([
 789         #include <linux/fs.h>
 790         #include <linux/quota.h>
 791 ],[
 792         ((struct quotactl_ops *)0)->quota_on(NULL, 0, 0, ((struct path*)0));
 793 ],[
 794         AC_DEFINE(HAVE_QUOTA_ON_USE_PATH, 1,
 795                 [quota_on use path as 4th paramter])
 796         AC_MSG_RESULT([yes])
 797 ],[
 798         AC_MSG_RESULT([no])
 799 ])
 800 EXTRA_KCFLAGS="$tmp_flags"
 801 ])
 802
 803 #
 804 # 2.6.38 export simple_setattr
 805 #
 806 AC_DEFUN([LC_EXPORT_SIMPLE_SETATTR],
 807 [LB_CHECK_SYMBOL_EXPORT([simple_setattr],
 808 [fs/libfs.c],[
 809 AC_DEFINE(HAVE_SIMPLE_SETATTR, 1,
 810             [simple_setattr is exported by the kernel])
 811 ],[
 812 ])
 813 ])
 814
 815 #
 816 # 2.6.39 remove unplug_fn from request_queue.
 817 #
 818 AC_DEFUN([LC_REQUEST_QUEUE_UNPLUG_FN],
 819 [AC_MSG_CHECKING([if request_queue has unplug_fn field])
 820 LB_LINUX_TRY_COMPILE([
 821         #include <linux/blkdev.h>
 822 ],[
 823         do{ }while(sizeof(((struct request_queue *)0)->unplug_fn));
 824 ],[
 825         AC_DEFINE(HAVE_REQUEST_QUEUE_UNPLUG_FN, 1,
 826                   [request_queue has unplug_fn field])
 827         AC_MSG_RESULT([yes])
 828 ],[
 829         AC_MSG_RESULT([no])
 830 ])
 831 ])
 832
 833 #
 834 # 2.6.39 replace get_sb with mount in struct file_system_type
 835 #
 836 AC_DEFUN([LC_HAVE_FSTYPE_MOUNT],
 837 [AC_MSG_CHECKING([if file_system_type has mount field])
 838 LB_LINUX_TRY_COMPILE([
 839         #include <linux/fs.h>
 840 ],[
 841         struct file_system_type fst;
 842         void *i = (void *) fst.mount;
 843 ],[
 844         AC_DEFINE(HAVE_FSTYPE_MOUNT, 1,
 845                 [struct file_system_type has mount field])
 846         AC_MSG_RESULT([yes])
 847 ],[
 848         AC_MSG_RESULT([no])
 849 ])
 850 ])
 851
 852 #
 853 # 3.0 dirty_inode() has a flag parameter
 854 # see kernel commit aa38572954ade525817fe88c54faebf85e5a61c0
 855 #
 856 AC_DEFUN([LC_DIRTY_INODE_WITH_FLAG],
 857 [AC_MSG_CHECKING([if dirty_inode super_operation takes flag])
 858 LB_LINUX_TRY_COMPILE([
 859         #include <linux/fs.h>
 860 ],[
 861         struct inode *inode;
 862         inode->i_sb->s_op->dirty_inode(NULL, 0);
 863 ],[
 864         AC_DEFINE(HAVE_DIRTY_INODE_HAS_FLAG, 1,
 865                   [dirty_inode super_operation takes flag])
 866         AC_MSG_RESULT([yes])
 867 ],[
 868         AC_MSG_RESULT([no])
 869 ])
 870 ])
 871
 872 #
 873 # 2.6.38 generic_permission taken 4 parameters.
 874 # in fact, it means rcu-walk aware permission bring.
 875 #
 876 # 3.1 generic_permission taken 2 parameters.
 877 # see kernel commit 2830ba7f34ebb27c4e5b8b6ef408cd6d74860890
 878 #
 879 AC_DEFUN([LC_GENERIC_PERMISSION],
 880 [AC_MSG_CHECKING([if generic_permission take 2 or 4 arguments])
 881 LB_LINUX_TRY_COMPILE([
 882         #include <linux/fs.h>
 883 ],[
 884         generic_permission(NULL, 0);
 885 ],[
 886         AC_DEFINE(HAVE_GENERIC_PERMISSION_2ARGS, 1,
 887                   [generic_permission taken 2 arguments])
 888         AC_MSG_RESULT([yes, 2 args])
 889 ],[
 890         LB_LINUX_TRY_COMPILE([
 891                 #include <linux/fs.h>
 892         ],[
 893                 generic_permission(NULL, 0, 0, NULL);
 894         ],[
 895                 AC_DEFINE(HAVE_GENERIC_PERMISSION_4ARGS, 1,
 896                           [generic_permission taken 4 arguments])
 897                 AC_MSG_RESULT([yes, 4 args])
 898         ],[
 899                 AC_MSG_RESULT([no])
 900         ])
 901 ])
 902 ])
 903
 904 #
 905 # 3.1 renames lock-manager ops(lock_manager_operations) from fl_xxx to lm_xxx
 906 # see kernel commit 8fb47a4fbf858a164e973b8ea8ef5e83e61f2e50
 907 #
 908 AC_DEFUN([LC_LM_XXX_LOCK_MANAGER_OPS],
 909 [AC_MSG_CHECKING([if lock-manager ops renamed to lm_xxx])
 910 LB_LINUX_TRY_COMPILE([
 911         #include <linux/fs.h>
 912 ],[
 913         struct lock_manager_operations lm_ops;
 914         lm_ops.lm_compare_owner = NULL;
 915 ],[
 916         AC_DEFINE(HAVE_LM_XXX_LOCK_MANAGER_OPS, 1,
 917                   [lock-manager ops renamed to lm_xxx])
 918         AC_MSG_RESULT([yes])
 919 ],[
 920         AC_MSG_RESULT([no])
 921 ])
 922 ])
 923
 924 #
 925 # 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait/
 926 #     inode_dio_done instead.
 927 # see kernel commit bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3
 928 #
 929 AC_DEFUN([LC_INODE_DIO_WAIT],
 930 [AC_MSG_CHECKING([if inode->i_alloc_sem is killed and use inode_dio_wait/done.])
 931 LB_LINUX_TRY_COMPILE([
 932         #include <linux/fs.h>
 933 ],[
 934         inode_dio_wait((struct inode *)0);
 935         inode_dio_done((struct inode *)0);
 936 ],[
 937         AC_DEFINE(HAVE_INODE_DIO_WAIT, 1,
 938                   [inode->i_alloc_sem is killed and use inode_dio_wait/done])
 939         AC_MSG_RESULT([yes])
 940 ],[
 941         AC_MSG_RESULT([no])
 942 ])
 943 ])
 944
 945 #
 946 # 3.1 adds get_acl method to inode_operations to read ACL from disk.
 947 # see kernel commit 4e34e719e457f2e031297175410fc0bd4016a085
 948 #
 949 AC_DEFUN([LC_IOP_GET_ACL],
 950 [AC_MSG_CHECKING([inode_operations has .get_acl member function])
 951 LB_LINUX_TRY_COMPILE([
 952         #include <linux/fs.h>
 953 ],[
 954         struct inode_operations iop;
 955         iop.get_acl = NULL;
 956 ],[
 957         AC_DEFINE(HAVE_IOP_GET_ACL, 1,
 958                   [inode_operations has .get_acl member function])
 959         AC_MSG_RESULT([yes])
 960 ],[
 961         AC_MSG_RESULT([no])
 962 ])
 963 ])
 964
 965 #
 966 # 3.1.1 has ext4_blocks_for_truncate
 967 #
 968 AC_DEFUN([LC_BLOCKS_FOR_TRUNCATE],
 969 [AC_MSG_CHECKING([if kernel has ext4_blocks_for_truncate])
 970 LB_LINUX_TRY_COMPILE([
 971         #include <linux/fs.h>
 972         #include "$LINUX/fs/ext4/ext4_jbd2.h"
 973         #include "$LINUX/fs/ext4/truncate.h"
 974 ],[
 975         ext4_blocks_for_truncate(NULL);
 976 ],[
 977         AC_MSG_RESULT([yes])
 978         AC_DEFINE(HAVE_BLOCKS_FOR_TRUNCATE, 1,
 979                   [kernel has ext4_blocks_for_truncate])
 980 ],[
 981         AC_MSG_RESULT([no])
 982 ])
 983 ])
 984
 985 #
 986 # 3.1 introduced generic_file_llseek_size()
 987 #
 988 AC_DEFUN([LC_FILE_LLSEEK_SIZE],
 989         [LB_CHECK_SYMBOL_EXPORT([generic_file_llseek_size],
 990         [fs/read_write.c],
 991         [AC_DEFINE(HAVE_FILE_LLSEEK_SIZE, 1,
 992                    [generic_file_llseek_size is exported by the kernel])])
 993 ])
 994
 995 #
 996 # 3.2 request_queue.make_request_fn defined as function returns with void
 997 # see kernel commit 5a7bbad27a410350e64a2d7f5ec18fc73836c14f
 998 #
 999 AC_DEFUN([LC_HAVE_VOID_MAKE_REQUEST_FN],
1000 [AC_MSG_CHECKING([if request_queue.make_request_fn returns void but not int])
1001 LB_LINUX_TRY_COMPILE([
1002         #include <linux/blkdev.h>
1003 ],[
1004         int ret;
1005         make_request_fn         *mrf;
1006         ret = mrf(NULL, NULL);
1007 ],[
1008         AC_MSG_RESULT([no])
1009 ],[
1010         AC_DEFINE(HAVE_VOID_MAKE_REQUEST_FN, 1,
1011                   [request_queue.make_request_fn returns void but not int])
1012         AC_MSG_RESULT([yes])
1013 ])
1014 ])
1015
1016 #
1017 # 3.2 protects inode->i_nlink from direct modification
1018 # see kernel commit a78ef704a8dd430225955f0709b22d4a6ba21deb
1019 # at the same time adds set_nlink(), so checks set_nlink() for it.
1020 #
1021 AC_DEFUN([LC_HAVE_PROTECT_I_NLINK],
1022 [AC_MSG_CHECKING([if inode->i_nlink is protected from direct modification])
1023 LB_LINUX_TRY_COMPILE([
1024         #include <linux/fs.h>
1025 ],[
1026         struct inode i;
1027         set_nlink(&i, 1);
1028 ],[
1029         AC_DEFINE(HAVE_PROTECT_I_NLINK, 1,
1030                   [inode->i_nlink is protected from direct modification])
1031         AC_MSG_RESULT([yes])
1032 ],[
1033         AC_MSG_RESULT([no])
1034 ])
1035 ])
1036
1037 #
1038 # 3.3 introduces migrate_mode.h and migratepage has 4 args
1039 #
1040 AC_DEFUN([LC_HAVE_MIGRATE_HEADER],
1041 [LB_CHECK_FILE([$LINUX/include/linux/migrate.h],[
1042                 AC_DEFINE(HAVE_MIGRATE_H, 1,
1043                 [kernel has include/linux/migrate.h])
1044 ],[LB_CHECK_FILE([$LINUX/include/linux/migrate_mode.h],[
1045                 AC_DEFINE(HAVE_MIGRATE_MODE_H, 1,
1046                         [kernel has include/linux/migrate_mode.h])
1047 ],[
1048         AC_MSG_RESULT([no])
1049 ])
1050 ])
1051 ])
1052
1053 AC_DEFUN([LC_MIGRATEPAGE_4ARGS],
1054 [AC_MSG_CHECKING([if address_space_operations.migratepage has 4 args])
1055 LB_LINUX_TRY_COMPILE([
1056         #include <linux/fs.h>
1057 #ifdef HAVE_MIGRATE_H
1058         #include <linux/migrate.h>
1059 #elif defined(HAVE_MIGRATE_MODE_H)
1060         #include <linux/migrate_mode.h>
1061 #endif
1062 ],[
1063         struct address_space_operations aops;
1064
1065         aops.migratepage(NULL, NULL, NULL, MIGRATE_ASYNC);
1066 ],[
1067         AC_DEFINE(HAVE_MIGRATEPAGE_4ARGS, 1,
1068                 [address_space_operations.migratepage has 4 args])
1069         AC_MSG_RESULT([yes])
1070 ],[
1071         AC_MSG_RESULT([no])
1072 ])
1073 ])
1074
1075 #
1076 # 3.3 switchs super_operations to use dentry as parameter (but not vfsmount)
1077 # see kernel commit 34c80b1d93e6e20ca9dea0baf583a5b5510d92d4
1078 #
1079 AC_DEFUN([LC_SUPEROPS_USE_DENTRY],
1080 [AC_MSG_CHECKING([if super_operations use dentry as parameter])
1081 tmp_flags="$EXTRA_KCFLAGS"
1082 EXTRA_KCFLAGS="-Werror"
1083 LB_LINUX_TRY_COMPILE([
1084         #include <linux/fs.h>
1085         int show_options(struct seq_file *seq, struct dentry *root){
1086                 return 0;
1087         }
1088 ],[
1089         struct super_operations ops;
1090         ops.show_options = show_options;
1091 ],[
1092         AC_DEFINE(HAVE_SUPEROPS_USE_DENTRY, 1,
1093                   [super_operations use dentry as parameter])
1094         AC_MSG_RESULT([yes])
1095 ],[
1096         AC_MSG_RESULT([no])
1097 ])
1098 EXTRA_KCFLAGS="$tmp_flags"
1099 ])
1100
1101 #
1102 # 3.3 switchs inode_operations to use umode_t as parameter (but not int)
1103 # see kernel commit 1a67aafb5f72a436ca044293309fa7e6351d6a35
1104 #
1105 AC_DEFUN([LC_INODEOPS_USE_UMODE_T],
1106 [AC_MSG_CHECKING([if inode_operations use umode_t as parameter])
1107 tmp_flags="$EXTRA_KCFLAGS"
1108 EXTRA_KCFLAGS="-Werror"
1109 LB_LINUX_TRY_COMPILE([
1110         #include <linux/fs.h>
1111         #include <linux/types.h>
1112         int my_mknod(struct inode *dir, struct dentry *dchild,
1113                      umode_t mode, dev_t dev)
1114         {
1115                 return 0;
1116         }
1117 ],[
1118         struct inode_operations ops;
1119         ops.mknod = my_mknod;
1120 ],[
1121         AC_DEFINE(HAVE_INODEOPS_USE_UMODE_T, 1,
1122                   [inode_operations use umode_t as parameter])
1123         AC_MSG_RESULT([yes])
1124 ],[
1125         AC_MSG_RESULT([no])
1126 ])
1127 EXTRA_KCFLAGS="$tmp_flags"
1128 ])
1129
1130 # 3.4 kmap_atomic removes second argument
1131 # see kernel commit 1ec9c5ddc17aa398f05646abfcbaf315b544e62f
1132 #
1133 AC_DEFUN([LC_KMAP_ATOMIC_HAS_1ARG],
1134 [AC_MSG_CHECKING([if kmap_atomic has only 1 argument])
1135 LB_LINUX_TRY_COMPILE([
1136         #include <linux/highmem.h>
1137 ],[
1138         kmap_atomic(NULL);
1139 ],[
1140         AC_DEFINE(HAVE_KMAP_ATOMIC_HAS_1ARG, 1,
1141                   [have kmap_atomic has only 1 argument])
1142         AC_MSG_RESULT([yes])
1143 ],[
1144         AC_MSG_RESULT([no])
1145 ])
1146 ])
1147
1148 #
1149 # 3.4 switchs touch_atime to struct path
1150 # see kernel commit 68ac1234fb949b66941d94dce4157742799fc581
1151 #
1152 AC_DEFUN([LC_TOUCH_ATIME_1ARG],
1153 [AC_MSG_CHECKING([if touch_atime use one argument])
1154 LB_LINUX_TRY_COMPILE([
1155         #include <linux/fs.h>
1156 ],[
1157         touch_atime((struct path *)NULL);
1158 ],[
1159         AC_DEFINE(HAVE_TOUCH_ATIME_1ARG, 1,
1160                   [touch_atime use one argument])
1161         AC_MSG_RESULT([yes])
1162 ],[
1163         AC_MSG_RESULT([no])
1164 ])
1165 ])
1166
1167 #
1168 # 3.4 converts d_alloc_root to d_make_root
1169 # see kernel commit 32991ab305ace7017c62f8eecbe5eb36dc32e13b
1170 #
1171 AC_DEFUN([LC_HAVE_D_MAKE_ROOT],
1172 [AC_MSG_CHECKING([if have d_make_root])
1173 LB_LINUX_TRY_COMPILE([
1174         #include <linux/fs.h>
1175 ],[
1176         d_make_root((struct inode *)NULL);
1177 ],[
1178         AC_DEFINE(HAVE_D_MAKE_ROOT, 1,
1179                   [have d_make_root])
1180         AC_MSG_RESULT([yes])
1181 ],[
1182         AC_MSG_RESULT([no])
1183 ])
1184 ])
1185
1186 #
1187 # 3.5 renames end_writeback() back to clear_inode()...
1188 # see kernel commit dbd5768f87ff6fb0a4fe09c4d7b6c4a24de99430
1189 #
1190 AC_DEFUN([LC_HAVE_CLEAR_INODE],
1191 [AC_MSG_CHECKING([if have clear_inode])
1192 LB_LINUX_TRY_COMPILE([
1193         #include <linux/fs.h>
1194 ],[
1195         clear_inode((struct inode *)NULL);
1196 ],[
1197         AC_DEFINE(HAVE_CLEAR_INODE, 1,
1198                   [have clear_inode])
1199         AC_MSG_RESULT([yes])
1200 ],[
1201         AC_MSG_RESULT([no])
1202 ])
1203 ])
1204
1205 #
1206 # 3.5 encode_fh has parent inode passed in directly
1207 # see kernel commit b0b0382b
1208 #
1209 AC_DEFUN([LC_HAVE_ENCODE_FH_PARENT],
1210 [AC_MSG_CHECKING([if encode_fh have parent inode as parameter])
1211 tmp_flags="$EXTRA_KCFLAGS"
1212 EXTRA_KCFLAGS="-Werror"
1213 LB_LINUX_TRY_COMPILE([
1214         #include <linux/exportfs.h>
1215         #include <linux/fs.h>
1216         #include <linux/types.h>
1217         int ll_encode_fh(struct inode *i, __u32 *a, int *b, struct inode *p)
1218         {
1219                 return 0;
1220         }
1221 ],[
1222         struct export_operations exp_op;
1223         exp_op.encode_fh = ll_encode_fh;
1224 ],[
1225         AC_DEFINE(HAVE_ENCODE_FH_PARENT, 1,
1226                   [have parent inode as parameter])
1227         AC_MSG_RESULT([yes])
1228 ],[
1229         AC_MSG_RESULT([no])
1230 ])
1231 EXTRA_KCFLAGS="$tmp_flags"
1232 ])
1233
1234 # 3.5 has generic_file_llseek_size with 5 args
1235 AC_DEFUN([LC_FILE_LLSEEK_SIZE_5ARG],
1236 [AC_MSG_CHECKING([if kernel has generic_file_llseek_size with 5 args])
1237 LB_LINUX_TRY_COMPILE([
1238         #include <linux/fs.h>
1239 ],[
1240         generic_file_llseek_size(NULL, 0, 0, 0, 0);
1241 ], [
1242         AC_MSG_RESULT([yes])
1243         AC_DEFINE(HAVE_FILE_LLSEEK_SIZE_5ARGS, 1,
1244                 [kernel has generic_file_llseek_size with 5 args])
1245 ],[
1246         AC_MSG_RESULT([no])
1247 ])
1248 ])
1249
1250 #
1251 # 3.6 switch i_dentry/d_alias from list to hlist
1252 #
1253 AC_DEFUN([LC_HAVE_DENTRY_D_ALIAS_HLIST],
1254 [AC_MSG_CHECKING([if i_dentry/d_alias uses hlist])
1255 tmp_flags="$EXTRA_KCFLAGS"
1256 EXTRA_KCFLAGS="-Werror"
1257 LB_LINUX_TRY_COMPILE([
1258         #include <linux/fs.h>
1259         #include <linux/list.h>
1260 ],[
1261         struct inode inode;
1262         struct dentry dentry;
1263         struct hlist_head head;
1264         struct hlist_node node;
1265         inode.i_dentry = head;
1266         dentry.d_alias = node;
1267 ],[
1268         AC_DEFINE(HAVE_DENTRY_D_ALIAS_HLIST, 1,
1269                   [have i_dentry/d_alias uses hlist])
1270         AC_MSG_RESULT([yes])
1271 ],[
1272         AC_MSG_RESULT([no])
1273 ])
1274 EXTRA_KCFLAGS="$tmp_flags"
1275 ])
1276
1277 #
1278 # 3.6 dentry_open uses struct path as first argument
1279 # see kernel commit 765927b2
1280 #
1281 AC_DEFUN([LC_DENTRY_OPEN_USE_PATH],
1282 [AC_MSG_CHECKING([if dentry_open uses struct path as first argument])
1283 tmp_flags="$EXTRA_KCFLAGS"
1284 EXTRA_KCFLAGS="-Werror"
1285 LB_LINUX_TRY_COMPILE([
1286         #include <linux/fs.h>
1287         #include <linux/path.h>
1288 ],[
1289         struct path path;
1290         dentry_open(&path, 0, NULL);
1291 ],[
1292         AC_DEFINE(HAVE_DENTRY_OPEN_USE_PATH, 1,
1293                   [dentry_open uses struct path as first argument])
1294         AC_MSG_RESULT([yes])
1295 ],[
1296         AC_MSG_RESULT([no])
1297 ])
1298 EXTRA_KCFLAGS="$tmp_flags"
1299 ])
1300
1301 #
1302 # 3.6 vfs adds iop->atomic_open
1303 #
1304 AC_DEFUN([LC_HAVE_IOP_ATOMIC_OPEN],
1305 [AC_MSG_CHECKING([if iop has atomic_open])
1306 LB_LINUX_TRY_COMPILE([
1307         #include <linux/fs.h>
1308 ],[
1309         struct inode_operations iop;
1310         iop.atomic_open = NULL;
1311 ],[
1312         AC_DEFINE(HAVE_IOP_ATOMIC_OPEN, 1,
1313                   [have iop atomic_open])
1314         AC_MSG_RESULT([yes])
1315 ],[
1316         AC_MSG_RESULT([no])
1317 ])
1318 ])
1319
1320 #
1321 # 3.7 posix_acl_{to,from}_xattr take struct user_namespace
1322 #
1323 AC_DEFUN([LC_HAVE_POSIXACL_USER_NS],
1324 [AC_MSG_CHECKING([if posix_acl_to_xattr takes struct user_namespace])
1325 LB_LINUX_TRY_COMPILE([
1326         #include <linux/fs.h>
1327         #include <linux/posix_acl_xattr.h>
1328 ],[
1329         posix_acl_to_xattr((struct user_namespace *)NULL, NULL, NULL, 0);
1330 ],[
1331         AC_DEFINE(HAVE_POSIXACL_USER_NS, 1,
1332                   [posix_acl_to_xattr takes struct user_namespace])
1333         AC_MSG_RESULT([yes])
1334 ],[
1335         AC_MSG_RESULT([no])
1336 ])
1337 ])
1338
1339 #
1340 # 3.9 uses hlist_for_each_entry with 3 args
1341 # b67bfe0d42cac56c512dd5da4b1b347a23f4b70a
1342 #
1343 AC_DEFUN([LC_HAVE_HLIST_FOR_EACH_3ARG],
1344 [AC_MSG_CHECKING([if hlist_for_each_entry has 3 args])
1345 LB_LINUX_TRY_COMPILE([
1346         #include <linux/list.h>
1347         #include <linux/fs.h>
1348 ],[
1349         struct inode *inode;
1350         struct dentry *dentry;
1351         hlist_for_each_entry(dentry, &inode->i_dentry, d_alias) {
1352                 continue;
1353         }
1354 ],[
1355         AC_DEFINE(HAVE_HLIST_FOR_EACH_3ARG, 1, [3 args])
1356         AC_MSG_RESULT([yes])
1357 ],[
1358         AC_MSG_RESULT([no])
1359 ])
1360 ])
1361
1362 #
1363 # 3.9 killed f_vfsmnt by
1364 # 182be684784334598eee1d90274e7f7aa0063616
1365 # replacement is f_path.mnt
1366 #
1367 AC_DEFUN([LC_HAVE_F_PATH_MNT],
1368 [AC_MSG_CHECKING([if struct file has f_path.mnt])
1369 LB_LINUX_TRY_COMPILE([
1370         #include <linux/fs.h>
1371 ],[
1372         struct file *fp = NULL;
1373         struct path  path;
1374
1375         path.mnt = fp->f_path.mnt;
1376 ],[
1377         AC_DEFINE(HAVE_F_PATH_MNT,1,[yes])
1378         AC_MSG_RESULT([yes])
1379 ],[
1380         AC_MSG_RESULT([no])
1381 ])
1382 ])
1383
1384 #
1385 # LC_PROG_LINUX
1386 #
1387 # Lustre linux kernel checks
1388 #
1389 AC_DEFUN([LC_PROG_LINUX],
1390          [
1391          LC_CONFIG_PINGER
1392          LC_CONFIG_CHECKSUM
1393          LC_CONFIG_LIBLUSTRE_RECOVERY
1394          LC_CONFIG_HEALTH_CHECK_WRITE
1395          LC_CONFIG_LRU_RESIZE
1396          LC_LLITE_LLOOP_MODULE
1397
1398          LC_CAPA_CRYPTO
1399          LC_CONFIG_RMTCLIENT
1400          LC_CONFIG_GSS
1401
1402          # 2.6.12
1403          LC_RW_TREE_LOCK
1404
1405          # raid5-zerocopy patch
1406          LC_PAGE_CONSTANT
1407
1408          # 2.6.24
1409          LC_BIO_ENDIO_2ARG
1410          LC_PROCFS_DELETED
1411
1412          # 2.6.27
1413          LC_INODE_PERMISION_2ARGS
1414          LC_QUOTA_ON_5ARGS
1415          LC_QUOTA_OFF_3ARGS
1416
1417          # 2.6.27.15-2 sles11
1418          LC_BI_HW_SEGMENTS
1419          LC_HAVE_QUOTAIO_H
1420
1421          # 2.6.32
1422          LC_BLK_QUEUE_MAX_SEGMENTS
1423
1424          # 2.6.34
1425          LC_HAVE_DQUOT_FS_DISK_QUOTA
1426          LC_HAVE_DQUOT_SUSPEND
1427
1428          # 2.6.35, 3.0.0
1429          LC_FILE_FSYNC
1430          LC_EXPORT_SIMPLE_SETATTR
1431          LC_EXPORT_TRUNCATE_COMPLETE_PAGE
1432
1433          # 2.6.36
1434          LC_FS_STRUCT_RWLOCK
1435          LC_SBOPS_EVICT_INODE
1436
1437          # 2.6.37
1438          LC_KERNEL_LOCKED
1439
1440          # 2.6.38
1441          LC_BLKDEV_GET_BY_DEV
1442          LC_GENERIC_PERMISSION
1443          LC_QUOTA_ON_USE_PATH
1444          LC_DCACHE_LOCK
1445          LC_INODE_I_RCU
1446          LC_D_COMPARE_7ARGS
1447          LC_D_DELETE_CONST
1448
1449          # 2.6.39
1450          LC_REQUEST_QUEUE_UNPLUG_FN
1451          LC_HAVE_FSTYPE_MOUNT
1452
1453          # 3.0
1454          LC_DIRTY_INODE_WITH_FLAG
1455
1456          # 3.1
1457          LC_LM_XXX_LOCK_MANAGER_OPS
1458          LC_INODE_DIO_WAIT
1459          LC_IOP_GET_ACL
1460          LC_FILE_LLSEEK_SIZE
1461
1462          # 3.1.1
1463          LC_BLOCKS_FOR_TRUNCATE
1464
1465          # 3.2
1466          LC_HAVE_VOID_MAKE_REQUEST_FN
1467          LC_HAVE_PROTECT_I_NLINK
1468
1469          # 3.3
1470          LC_HAVE_MIGRATE_HEADER
1471          LC_MIGRATEPAGE_4ARGS
1472          LC_SUPEROPS_USE_DENTRY
1473          LC_INODEOPS_USE_UMODE_T
1474
1475          # 3.4
1476          LC_TOUCH_ATIME_1ARG
1477          LC_HAVE_D_MAKE_ROOT
1478          LC_KMAP_ATOMIC_HAS_1ARG
1479
1480          # 3.5
1481          LC_HAVE_CLEAR_INODE
1482          LC_HAVE_ENCODE_FH_PARENT
1483          LC_FILE_LLSEEK_SIZE_5ARG
1484
1485          # 3.6
1486          LC_HAVE_DENTRY_D_ALIAS_HLIST
1487          LC_DENTRY_OPEN_USE_PATH
1488          LC_HAVE_IOP_ATOMIC_OPEN
1489
1490          # 3.7
1491          LC_HAVE_POSIXACL_USER_NS
1492
1493          # 3.9
1494          LC_HAVE_HLIST_FOR_EACH_3ARG
1495          LC_HAVE_F_PATH_MNT
1496
1497          #
1498          if test x$enable_server = xyes ; then
1499                 AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
1500                 LC_FUNC_DEV_SET_RDONLY
1501                 LC_STACK_SIZE
1502                 LC_QUOTA64
1503                 LC_QUOTA_CONFIG
1504          fi
1505 ])
1506
1507 #
1508 # LC_CONFIG_CLIENT_SERVER
1509 #
1510 # Build client/server sides of Lustre
1511 #
1512 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
1513 [AC_MSG_CHECKING([whether to build Lustre server support])
1514 AC_ARG_ENABLE([server],
1515         AC_HELP_STRING([--disable-server],
1516                         [disable Lustre server support]),
1517         [],[enable_server='yes'])
1518 AC_MSG_RESULT([$enable_server])
1519
1520 AC_MSG_CHECKING([whether to build Lustre client support])
1521 AC_ARG_ENABLE([client],
1522         AC_HELP_STRING([--disable-client],
1523                         [disable Lustre client support]),
1524         [],[enable_client='yes'])
1525 AC_MSG_RESULT([$enable_client])])
1526
1527 #
1528 # LC_CONFIG_LIBLUSTRE
1529 #
1530 # whether to build liblustre
1531 #
1532 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
1533 [AC_MSG_CHECKING([whether to build Lustre library])
1534 AC_ARG_ENABLE([liblustre],
1535         AC_HELP_STRING([--disable-liblustre],
1536                         [disable building of Lustre library]),
1537         [],[enable_liblustre=$with_sysio])
1538 AC_MSG_RESULT([$enable_liblustre])
1539 # only build sysio if liblustre is built
1540 with_sysio="$enable_liblustre"
1541
1542 AC_MSG_CHECKING([whether to build liblustre tests])
1543 AC_ARG_ENABLE([liblustre-tests],
1544         AC_HELP_STRING([--enable-liblustre-tests],
1545                         [enable liblustre tests, if --disable-tests is used]),
1546         [],[enable_liblustre_tests=$enable_tests])
1547 if test x$enable_liblustre != xyes ; then
1548    enable_liblustre_tests='no'
1549 fi
1550 AC_MSG_RESULT([$enable_liblustre_tests])
1551
1552 AC_MSG_CHECKING([whether to enable liblustre acl])
1553 AC_ARG_ENABLE([liblustre-acl],
1554         AC_HELP_STRING([--disable-liblustre-acl],
1555                         [disable ACL support for liblustre]),
1556         [],[enable_liblustre_acl=yes])
1557 AC_MSG_RESULT([$enable_liblustre_acl])
1558 if test x$enable_liblustre_acl = xyes ; then
1559   AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
1560 fi
1561
1562 #
1563 # --enable-mpitest
1564 #
1565 AC_ARG_ENABLE(mpitests,
1566         AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
1567                            [include mpi tests]),
1568         [
1569          enable_mpitests=yes
1570          case $enableval in
1571          yes)
1572                 MPICC_WRAPPER=mpicc
1573                 ;;
1574          no)
1575                 enable_mpitests=no
1576                 ;;
1577          *)
1578                 MPICC_WRAPPER=$enableval
1579                  ;;
1580          esac
1581         ],
1582         [
1583         MPICC_WRAPPER=mpicc
1584         enable_mpitests=yes
1585         ]
1586 )
1587
1588 if test x$enable_mpitests != xno; then
1589         AC_MSG_CHECKING([whether mpitests can be built])
1590         oldcc=$CC
1591         CC=$MPICC_WRAPPER
1592         AC_LINK_IFELSE(
1593             [AC_LANG_PROGRAM([[
1594                     #include <mpi.h>
1595                 ]],[[
1596                     int flag;
1597                     MPI_Initialized(&flag);
1598                 ]])],
1599             [
1600                     AC_MSG_RESULT([yes])
1601             ],[
1602                     AC_MSG_RESULT([no])
1603                     enable_mpitests=no
1604         ])
1605         CC=$oldcc
1606 fi
1607 AC_SUBST(MPICC_WRAPPER)
1608
1609 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
1610 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
1611
1612 LC_CONFIG_PINGER
1613 LC_CONFIG_LIBLUSTRE_RECOVERY
1614 ])
1615
1616 #
1617 # LC_CONFIG_QUOTA
1618 #
1619 # whether to enable quota support global control
1620 #
1621 AC_DEFUN([LC_CONFIG_QUOTA],
1622 [AC_ARG_ENABLE([quota],
1623         AC_HELP_STRING([--enable-quota],
1624                         [enable quota support]),
1625         [],[enable_quota='yes'])
1626 ])
1627
1628 AC_DEFUN([LC_QUOTA],
1629 [#check global
1630 LC_CONFIG_QUOTA
1631 #check for utils
1632 AC_CHECK_HEADER(sys/quota.h,
1633                 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
1634                 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
1635 ])
1636
1637 #
1638 # LC_CONFIG_SPLIT
1639 #
1640 # whether to enable split support
1641 #
1642 AC_DEFUN([LC_CONFIG_SPLIT],
1643 [AC_MSG_CHECKING([whether to enable split support])
1644 AC_ARG_ENABLE([split],
1645         AC_HELP_STRING([--enable-split],
1646                         [enable split support]),
1647         [],[enable_split='no'])
1648 AC_MSG_RESULT([$enable_split])
1649 if test x$enable_split != xno; then
1650    AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
1651 fi
1652 ])
1653
1654 #
1655 # LC_LLITE_LLOOP_MODULE
1656 # lloop_llite.ko does not currently work with page sizes
1657 # of 64k or larger.
1658 #
1659 AC_DEFUN([LC_LLITE_LLOOP_MODULE],
1660 [AC_MSG_CHECKING([whether to enable llite_lloop module])
1661 LB_LINUX_TRY_COMPILE([
1662         #include <asm/page.h>
1663 ],[
1664         #if PAGE_SIZE >= 65536
1665         #error "PAGE_SIZE >= 65536"
1666         #endif
1667 ],[
1668         enable_llite_lloop_module='yes'
1669         AC_MSG_RESULT([yes])
1670 ],[
1671         enable_llite_lloop_module='no'
1672         AC_MSG_RESULT([no])
1673 ])
1674 ])
1675
1676 #
1677 # LC_OSD_ADDON
1678 #
1679 # configure support for optional OSD implementation
1680 #
1681 AC_DEFUN([LC_OSD_ADDON],
1682 [AC_MSG_CHECKING([for osd])
1683 AC_ARG_WITH([osd],
1684         AC_HELP_STRING([--with-osd=path],
1685                        [set path to optional osd]),
1686         [
1687                 case $with_osd in
1688                         no)     ENABLEOSDADDON=0
1689                                 ;;
1690                         *)      OSDADDON="${with_osd}"
1691                                 ENABLEOSDADDON=1
1692                                 ;;
1693                 esac
1694         ], [
1695                 ENABLEOSDADDON=0
1696         ])
1697 if test $ENABLEOSDADDON -eq 0; then
1698         AC_MSG_RESULT([no])
1699         OSDADDON=
1700 else
1701         OSDMODNAME=`basename $OSDADDON`
1702         if test -e $LUSTRE/$OSDMODNAME; then
1703                 AC_MSG_RESULT([can't link])
1704                 OSDADDON=
1705         elif ln -s $OSDADDON $LUSTRE/$OSDMODNAME; then
1706                 AC_MSG_RESULT([$OSDMODNAME])
1707                 OSDADDON="subdir-m += $OSDMODNAME"
1708         else
1709                 AC_MSG_RESULT([can't link])
1710                 OSDADDON=
1711         fi
1712 fi
1713 AC_SUBST(OSDADDON)
1714 ])
1715
1716 #
1717 # LC_CONFIGURE
1718 #
1719 # other configure checks
1720 #
1721 AC_DEFUN([LC_CONFIGURE],
1722 [LC_CONFIG_OBD_BUFFER_SIZE
1723
1724 if test $target_cpu == "i686" -o $target_cpu == "x86_64"; then
1725         CFLAGS="$CFLAGS -Werror"
1726 fi
1727
1728 # maximum MDS thread count
1729 LC_MDS_MAX_THREADS
1730
1731 # include/liblustre.h
1732 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
1733
1734 # liblustre/llite_lib.h
1735 AC_CHECK_HEADERS([xtio.h file.h])
1736
1737 # liblustre/dir.c
1738 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
1739
1740 # liblustre/lutil.c
1741 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
1742 AC_CHECK_FUNCS([inet_ntoa])
1743
1744 # libsysio/src/readlink.c
1745 LC_READLINK_SSIZE_T
1746
1747 # lvfs/prng.c - depends on linux/types.h from liblustre/dir.c
1748 AC_CHECK_HEADERS([linux/random.h], [], [],
1749                  [#ifdef HAVE_LINUX_TYPES_H
1750                   # include <linux/types.h>
1751                   #endif
1752                  ])
1753
1754 # utils/llverfs.c
1755 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
1756
1757 # check for -lz support
1758 ZLIB=""
1759 AC_CHECK_LIB([z],
1760              [adler32],
1761              [AC_CHECK_HEADERS([zlib.h],
1762                                [ZLIB="-lz"
1763                                 AC_DEFINE([HAVE_ADLER], 1,
1764                                           [support alder32 checksum type])],
1765                                [AC_MSG_WARN([No zlib-devel package found,
1766                                              unable to use adler32 checksum])])],
1767              [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
1768 )
1769 AC_SUBST(ZLIB)
1770
1771 SELINUX=""
1772 AC_CHECK_LIB([selinux],
1773                 [is_selinux_enabled],
1774                 [AC_CHECK_HEADERS([selinux.h],
1775                                 [SELINUX="-lselinux"
1776                                 AC_DEFINE([HAVE_SELINUX], 1,
1777                                                 [support for selinux ])],
1778                                 [AC_MSG_WARN([No selinux-devel package found,
1779                                                 unable to build selinux enabled
1780                                                 tools])])],
1781                 [AC_MSG_WARN([No selinux package found, unable to build selinux
1782                                 enabled tools])]
1783 )
1784 AC_SUBST(SELINUX)
1785
1786 # Super safe df
1787 AC_ARG_ENABLE([mindf],
1788       AC_HELP_STRING([--enable-mindf],
1789                       [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
1790       [],[])
1791 if test "$enable_mindf" = "yes" ;  then
1792       AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
1793 fi
1794
1795 AC_ARG_ENABLE([fail_alloc],
1796         AC_HELP_STRING([--disable-fail-alloc],
1797                 [disable randomly alloc failure]),
1798         [],[enable_fail_alloc=yes])
1799 AC_MSG_CHECKING([whether to randomly failing memory alloc])
1800 AC_MSG_RESULT([$enable_fail_alloc])
1801 if test x$enable_fail_alloc != xno ; then
1802         AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
1803 fi
1804
1805 AC_ARG_ENABLE([invariants],
1806         AC_HELP_STRING([--enable-invariants],
1807                 [enable invariant checking (cpu intensive)]),
1808         [],[])
1809 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
1810 AC_MSG_RESULT([$enable_invariants])
1811 if test x$enable_invariants = xyes ; then
1812         AC_DEFINE([CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK], 1, [enable invariant checking])
1813 fi
1814
1815 AC_ARG_ENABLE([lu_ref],
1816         AC_HELP_STRING([--enable-lu_ref],
1817                 [enable lu_ref reference tracking code]),
1818         [],[])
1819 AC_MSG_CHECKING([whether to track references with lu_ref])
1820 AC_MSG_RESULT([$enable_lu_ref])
1821 if test x$enable_lu_ref = xyes ; then
1822         AC_DEFINE([USE_LU_REF], 1, [enable lu_ref reference tracking code])
1823 fi
1824
1825 AC_ARG_ENABLE([pgstate-track],
1826               AC_HELP_STRING([--enable-pgstate-track],
1827                              [enable page state tracking]),
1828               [enable_pgstat_track='yes'],[])
1829 AC_MSG_CHECKING([whether to enable page state tracking])
1830 AC_MSG_RESULT([$enable_pgstat_track])
1831 if test x$enable_pgstat_track = xyes ; then
1832         AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
1833                   [enable page state tracking code])
1834 fi
1835 ])
1836
1837 #
1838 # LC_CONDITIONALS
1839 #
1840 # AM_CONDITIONALS for lustre
1841 #
1842 AC_DEFUN([LC_CONDITIONALS],
1843 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
1844 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
1845 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
1846 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
1847 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
1848 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
1849 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
1850 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
1851 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
1852 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
1853 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
1854 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
1855 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
1856 AM_CONDITIONAL(LLITE_LLOOP, test x$enable_llite_lloop_module = xyes)
1857 ])
1858
1859 #
1860 # LC_CONFIG_FILES
1861 #
1862 # files that should be generated with AC_OUTPUT
1863 #
1864 AC_DEFUN([LC_CONFIG_FILES],
1865 [AC_CONFIG_FILES([
1866 lustre/Makefile
1867 lustre/autoMakefile
1868 lustre/autoconf/Makefile
1869 lustre/conf/Makefile
1870 lustre/contrib/Makefile
1871 lustre/doc/Makefile
1872 lustre/include/Makefile
1873 lustre/include/lustre_ver.h
1874 lustre/include/linux/Makefile
1875 lustre/include/darwin/Makefile
1876 lustre/include/lustre/Makefile
1877 lustre/kernel_patches/targets/2.6-rhel6.target
1878 lustre/kernel_patches/targets/2.6-rhel5.target
1879 lustre/kernel_patches/targets/2.6-sles11.target
1880 lustre/kernel_patches/targets/3.0-sles11.target
1881 lustre/kernel_patches/targets/2.6-fc11.target
1882 lustre/kernel_patches/targets/2.6-fc12.target
1883 lustre/kernel_patches/targets/2.6-fc15.target
1884 lustre/kernel_patches/targets/3.x-fc18.target
1885 lustre/ldlm/Makefile
1886 lustre/fid/Makefile
1887 lustre/fid/autoMakefile
1888 lustre/liblustre/Makefile
1889 lustre/liblustre/tests/Makefile
1890 lustre/liblustre/tests/mpi/Makefile
1891 lustre/llite/Makefile
1892 lustre/llite/autoMakefile
1893 lustre/lclient/Makefile
1894 lustre/lov/Makefile
1895 lustre/lov/autoMakefile
1896 lustre/lvfs/Makefile
1897 lustre/lvfs/autoMakefile
1898 lustre/mdc/Makefile
1899 lustre/mdc/autoMakefile
1900 lustre/lmv/Makefile
1901 lustre/lmv/autoMakefile
1902 lustre/lfsck/Makefile
1903 lustre/lfsck/autoMakefile
1904 lustre/mdt/Makefile
1905 lustre/mdt/autoMakefile
1906 lustre/mdd/Makefile
1907 lustre/mdd/autoMakefile
1908 lustre/fld/Makefile
1909 lustre/fld/autoMakefile
1910 lustre/obdclass/Makefile
1911 lustre/obdclass/autoMakefile
1912 lustre/obdclass/linux/Makefile
1913 lustre/obdecho/Makefile
1914 lustre/obdecho/autoMakefile
1915 lustre/ofd/Makefile
1916 lustre/ofd/autoMakefile
1917 lustre/osc/Makefile
1918 lustre/osc/autoMakefile
1919 lustre/ost/Makefile
1920 lustre/ost/autoMakefile
1921 lustre/osd-ldiskfs/Makefile
1922 lustre/osd-ldiskfs/autoMakefile
1923 lustre/osd-zfs/Makefile
1924 lustre/osd-zfs/autoMakefile
1925 lustre/mgc/Makefile
1926 lustre/mgc/autoMakefile
1927 lustre/mgs/Makefile
1928 lustre/mgs/autoMakefile
1929 lustre/target/Makefile
1930 lustre/ptlrpc/Makefile
1931 lustre/ptlrpc/autoMakefile
1932 lustre/ptlrpc/gss/Makefile
1933 lustre/ptlrpc/gss/autoMakefile
1934 lustre/quota/Makefile
1935 lustre/quota/autoMakefile
1936 lustre/scripts/Makefile
1937 lustre/tests/Makefile
1938 lustre/tests/mpi/Makefile
1939 lustre/utils/Makefile
1940 lustre/utils/gss/Makefile
1941 lustre/osp/Makefile
1942 lustre/osp/autoMakefile
1943 lustre/lod/Makefile
1944 lustre/lod/autoMakefile
1945 lustre/obdclass/darwin/Makefile
1946 ])
1947 ])