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 'auto', tests for dependencies, if found, enables; only called 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='auto'])
 273  AC_MSG_RESULT([$enable_gss_keyring])
 274
 275  if test x$enable_gss_keyring != xno; then
 276         LB_LINUX_CONFIG_IM([KEYS],[],
 277                            [gss_keyring_conf_test='fail';
 278                             AC_MSG_WARN([GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.])])
 279
 280         AC_CHECK_LIB([keyutils], [keyctl_search], [],
 281                      [gss_keyring_conf_test='fail';
 282                       AC_MSG_WARN([libkeyutils is not found, which is required by gss keyring backend])],)
 283
 284         if test x$gss_keyring_conf_test != xfail; then
 285                 AC_DEFINE([HAVE_GSS_KEYRING], [1], [Define this if you enable gss keyring backend])
 286                 enable_gss_keyring='yes'
 287         else
 288                 if test x$enable_gss_keyring == xyes; then
 289                         AC_MSG_ERROR([Cannot enable gss_keyring. See above for details.])
 290                 else
 291                         AC_MSG_WARN([Cannot enable gss keyring.  See above for details.])
 292                 fi
 293         fi
 294  fi
 295 ])
 296
 297 AC_DEFUN([LC_CONFIG_SUNRPC],
 298 [LB_LINUX_CONFIG_IM([SUNRPC],[],
 299                     [if test x$sunrpc_required == xyes; then
 300                          AC_MSG_ERROR([kernel SUNRPC support is required by using GSS.])
 301                      fi])
 302 ])
 303
 304 #
 305 # LC_CONFIG_GSS (default 'auto' (tests for dependencies, if found, enables))
 306 #
 307 # Build gss and related tools of Lustre. Currently both kernel and user space
 308 # parts are depend on linux platform.
 309 #
 310 AC_DEFUN([LC_CONFIG_GSS],
 311 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
 312  AC_ARG_ENABLE([gss],
 313                [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
 314                [],[enable_gss='auto'])
 315  AC_MSG_RESULT([$enable_gss])
 316
 317  if test x$enable_gss != xno; then
 318         LC_CONFIG_GSS_KEYRING
 319         sunrpc_required=$enable_gss
 320         LC_CONFIG_SUNRPC
 321         sunrpc_required=no
 322
 323         LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
 324                            [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
 325         LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
 326                            [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
 327         LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
 328                            [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
 329         LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
 330                            [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
 331
 332         require_krb5=$enable_gss
 333         AC_KERBEROS_V5
 334         require_krb5=no
 335
 336         if test x$KRBDIR != x; then
 337                 AC_CHECK_LIB([gssapi], [gss_export_lucid_sec_context],
 338                              [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi";
 339                               gss_conf_test='success'],
 340                              [AC_CHECK_LIB([gssglue], [gss_export_lucid_sec_context],
 341                                            [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue";
 342                                             gss_conf_test='success'],
 343                                            [if test x$enable_gss == xyes; then
 344                                                 AC_MSG_ERROR([libgssapi or libgssglue is not found, which is required by GSS.])
 345                                             else
 346                                                 AC_MSG_WARN([libgssapi or libgssglue is not found, which is required by GSS.])
 347                                             fi])],)
 348                 AC_SUBST(GSSAPI_LIBS)
 349         fi
 350
 351         if test x$gss_conf_test == xsuccess; then
 352                 AC_DEFINE([HAVE_GSS], [1], [Define this is if you enable gss])
 353                 enable_gss='yes'
 354         fi
 355
 356  fi
 357 ])
 358
 359 # 2.6.24
 360
 361 # 2.6.24 has bio_endio with 2 args
 362 AC_DEFUN([LC_BIO_ENDIO_2ARG],
 363 [AC_MSG_CHECKING([if kernel has bio_endio with 2 args])
 364 LB_LINUX_TRY_COMPILE([
 365         #include <linux/bio.h>
 366 ],[
 367         bio_endio(NULL, 0);
 368 ], [
 369         AC_MSG_RESULT([yes])
 370         AC_DEFINE(HAVE_BIO_ENDIO_2ARG, 1,
 371                 [kernel has bio_endio with 2 args])
 372 ],[
 373         AC_MSG_RESULT([no])
 374 ])
 375 ])
 376
 377 # 2.6.24 removes long aged procfs entry -> deleted member
 378 AC_DEFUN([LC_PROCFS_DELETED],
 379 [AC_MSG_CHECKING([if kernel has deleted member in procfs entry struct])
 380 LB_LINUX_TRY_COMPILE([
 381         #include <linux/proc_fs.h>
 382 ],[
 383         struct proc_dir_entry pde;
 384
 385         pde.deleted = sizeof(pde);
 386 ], [
 387         AC_MSG_RESULT([yes])
 388         AC_DEFINE(HAVE_PROCFS_DELETED, 1,
 389                 [kernel has deleted member in procfs entry struct])
 390 ],[
 391         AC_MSG_RESULT([no])
 392 ])
 393 ])
 394
 395 #
 396 # 2.6.27
 397 #
 398
 399 # up to v2.6.27 had a 3 arg version (inode, mask, nameidata)
 400 # v2.6.27->v2.6.37 had a 2 arg version (inode, mask)
 401 # v2.6.37->v3.0 had a 3 arg version (inode, mask, nameidata)
 402 # v3.1 onward have a 2 arg version (inode, mask)
 403 AC_DEFUN([LC_INODE_PERMISION_2ARGS],
 404 [AC_MSG_CHECKING([inode_operations->permission has two args])
 405 LB_LINUX_TRY_COMPILE([
 406         #include <linux/fs.h>
 407 ],[
 408         struct inode *inode __attribute__ ((unused));
 409
 410         inode = NULL;
 411         inode->i_op->permission(NULL, 0);
 412 ],[
 413         AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
 414                   [inode_operations->permission has two args])
 415         AC_MSG_RESULT([yes])
 416 ],[
 417         AC_MSG_RESULT([no])
 418 ])
 419 ])
 420
 421 # 2.6.27 use 5th parameter in quota_on for remount.
 422 AC_DEFUN([LC_QUOTA_ON_5ARGS],
 423 [AC_MSG_CHECKING([quota_on needs 5 parameters])
 424 LB_LINUX_TRY_COMPILE([
 425         #include <linux/fs.h>
 426         #include <linux/quota.h>
 427 ],[
 428         struct quotactl_ops *qop = NULL;
 429         qop->quota_on(NULL, 0, 0, NULL, 0);
 430 ],[
 431         AC_DEFINE(HAVE_QUOTA_ON_5ARGS, 1,
 432                 [quota_on needs 5 paramters])
 433         AC_MSG_RESULT([yes])
 434 ],[
 435         AC_MSG_RESULT([no])
 436 ])
 437 ])
 438
 439 # 2.6.27 use 3th parameter in quota_off for remount.
 440 AC_DEFUN([LC_QUOTA_OFF_3ARGS],
 441 [AC_MSG_CHECKING([quota_off needs 3 parameters])
 442 LB_LINUX_TRY_COMPILE([
 443         #include <linux/fs.h>
 444         #include <linux/quota.h>
 445 ],[
 446         struct quotactl_ops *qop = NULL;
 447         qop->quota_off(NULL, 0, 0);
 448 ],[
 449         AC_DEFINE(HAVE_QUOTA_OFF_3ARGS, 1,
 450                 [quota_off needs 3 paramters])
 451         AC_MSG_RESULT([yes])
 452 ],[
 453         AC_MSG_RESULT([no])
 454 ])
 455 ])
 456
 457 # 2.6.34 has quotactl_ops->[sg]et_dqblk that take struct fs_disk_quota
 458 AC_DEFUN([LC_HAVE_DQUOT_FS_DISK_QUOTA],
 459 tmp_flags="$EXTRA_KCFLAGS"
 460 EXTRA_KCFLAGS="-Werror"
 461 [AC_MSG_CHECKING([if quotactl_ops.set_dqblk takes struct fs_disk_quota])
 462 LB_LINUX_TRY_COMPILE([
 463         #include <linux/fs.h>
 464         #include <linux/quota.h>
 465 ],[
 466         struct quotactl_ops qops = {};
 467         struct fs_disk_quota fdq;
 468         qops.set_dqblk(NULL, 0, 0, &fdq);
 469 ],[
 470         AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1, [quotactl_ops.set_dqblk takes struct fs_disk_quota])
 471         AC_MSG_RESULT([yes])
 472 ],[
 473         AC_MSG_RESULT([no])
 474 ])
 475 EXTRA_KCFLAGS="$tmp_flags"
 476 ])
 477
 478 # 2.6.34 has renamed dquot options to dquot_*, check for dquot_suspend
 479 AC_DEFUN([LC_HAVE_DQUOT_SUSPEND],
 480 [AC_MSG_CHECKING([if dquot_suspend is defined])
 481 LB_LINUX_TRY_COMPILE([
 482         #include <linux/quotaops.h>
 483 ],[
 484         dquot_suspend(NULL, -1);
 485 ],[
 486         AC_DEFINE(HAVE_DQUOT_SUSPEND, 1, [dquot_suspend is defined])
 487         AC_MSG_RESULT([yes])
 488 ],[
 489         AC_MSG_RESULT([no])
 490 ])
 491 ])
 492
 493 # 2.6.27.15-2 sles11
 494
 495 # 2.6.27 sles11 remove the bi_hw_segments
 496 AC_DEFUN([LC_BI_HW_SEGMENTS],
 497 [AC_MSG_CHECKING([struct bio has a bi_hw_segments field])
 498 LB_LINUX_TRY_COMPILE([
 499         #include <linux/bio.h>
 500 ],[
 501         struct bio io;
 502         io.bi_hw_segments = sizeof(io);
 503 ],[
 504         AC_DEFINE(HAVE_BI_HW_SEGMENTS, 1,
 505                 [struct bio has a bi_hw_segments field])
 506         AC_MSG_RESULT([yes])
 507 ],[
 508         AC_MSG_RESULT([no])
 509 ])
 510 ])
 511
 512 #
 513 # 2.6.27 sles11 move the quotaio_v1{2}.h from include/linux to fs
 514 # 2.6.32 move the quotaio_v1{2}.h from fs to fs/quota
 515 AC_DEFUN([LC_HAVE_QUOTAIO_H],
 516 [LB_CHECK_FILE([$LINUX/include/linux/quotaio_v2.h],[
 517         AC_DEFINE(HAVE_QUOTAIO_H, 1,
 518                 [kernel has include/linux/quotaio_v2.h])
 519 ],[LB_CHECK_FILE([$LINUX/fs/quotaio_v2.h],[
 520                AC_DEFINE(HAVE_FS_QUOTAIO_H, 1,
 521                 [kernel has fs/quotaio_v1.h])
 522 ],[LB_CHECK_FILE([$LINUX/fs/quota/quotaio_v2.h],[
 523                AC_DEFINE(HAVE_FS_QUOTA_QUOTAIO_H, 1,
 524                 [kernel has fs/quota/quotaio_v2.h])
 525 ],[
 526         AC_MSG_RESULT([no])
 527 ])
 528 ])
 529 ])
 530 ])
 531
 532 # 2.6.32
 533
 534 # 2.6.32 replaces 2 functions blk_queue_max_phys_segments and blk_queue_max_hw_segments by blk_queue_max_segments
 535 AC_DEFUN([LC_BLK_QUEUE_MAX_SEGMENTS],
 536 [AC_MSG_CHECKING([if blk_queue_max_segments is defined])
 537 LB_LINUX_TRY_COMPILE([
 538         #include <linux/blkdev.h>
 539 ],[
 540         blk_queue_max_segments(NULL, 0);
 541 ],[
 542         AC_MSG_RESULT(yes)
 543         AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
 544                   [blk_queue_max_segments is defined])
 545 ],[
 546         AC_MSG_RESULT(no)
 547 ])
 548 ])
 549
 550 #
 551 # LC_QUOTA64
 552 #
 553 # Check if kernel has been patched for 64-bit quota limits support.
 554 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
 555 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
 556 # that in the absence of quotaio_v1.h in the kernel headers.
 557 #
 558 AC_DEFUN([LC_QUOTA64],[
 559         AC_MSG_CHECKING([if kernel has 64-bit quota limits support])
 560 tmp_flags="$EXTRA_KCFLAGS"
 561 EXTRA_KCFLAGS="-I$LINUX/fs"
 562         LB_LINUX_TRY_COMPILE([
 563                 #include <linux/kernel.h>
 564                 #include <linux/fs.h>
 565                 #if defined(HAVE_FS_QUOTA_QUOTAIO_H)
 566                 # include <quota/quotaio_v2.h>
 567                 struct v2r1_disk_dqblk dqblk_r1;
 568                 #else
 569                 #include <linux/quota.h>
 570                 int ver = QFMT_VFS_V1;
 571                 #endif
 572         ],[],[
 573                 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
 574                 AC_MSG_RESULT([yes])
 575         ],[
 576                 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
 577                         AC_MSG_ERROR([You have got no 64-bit kernel quota support.])
 578                 ],[])
 579                 AC_MSG_RESULT([no])
 580         ])
 581 EXTRA_KCFLAGS=$tmp_flags
 582 ])
 583
 584 #
 585 # 2.6.36 fs_struct.lock use spinlock instead of rwlock.
 586 #
 587 AC_DEFUN([LC_FS_STRUCT_RWLOCK],
 588 [AC_MSG_CHECKING([if fs_struct.lock use rwlock])
 589 LB_LINUX_TRY_COMPILE([
 590         #include <asm/atomic.h>
 591         #include <linux/spinlock.h>
 592         #include <linux/fs_struct.h>
 593 ],[
 594         ((struct fs_struct *)0)->lock = (rwlock_t){ 0 };
 595 ],[
 596         AC_DEFINE(HAVE_FS_STRUCT_RWLOCK, 1,
 597                   [fs_struct.lock use rwlock])
 598         AC_MSG_RESULT([yes])
 599 ],[
 600         AC_MSG_RESULT([no])
 601 ])
 602 ])
 603
 604 #
 605 # 2.6.36 super_operations add evict_inode method. it hybird of
 606 # delete_inode & clear_inode.
 607 #
 608 AC_DEFUN([LC_SBOPS_EVICT_INODE],
 609 [AC_MSG_CHECKING([if super_operations.evict_inode exist])
 610 LB_LINUX_TRY_COMPILE([
 611         #include <linux/fs.h>
 612 ],[
 613         ((struct super_operations *)0)->evict_inode(NULL);
 614 ],[
 615         AC_DEFINE(HAVE_SBOPS_EVICT_INODE, 1,
 616                 [super_operations.evict_inode() is exist in kernel])
 617         AC_MSG_RESULT([yes])
 618 ],[
 619         AC_MSG_RESULT([no])
 620 ])
 621 ])
 622
 623 #
 624 # 2.6.35 file_operations.fsync taken 2 arguments.
 625 # 3.0.0 file_operations.fsync takes 4 arguments.
 626 #
 627 AC_DEFUN([LC_FILE_FSYNC],
 628 [AC_MSG_CHECKING([if file_operations.fsync takes 4 or 2 arguments])
 629 LB_LINUX_TRY_COMPILE([
 630         #include <linux/fs.h>
 631 ],[
 632         ((struct file_operations *)0)->fsync(NULL, 0, 0, 0);
 633 ],[
 634         AC_DEFINE(HAVE_FILE_FSYNC_4ARGS, 1,
 635                 [file_operations.fsync takes 4 arguments])
 636         AC_MSG_RESULT([yes, 4 args])
 637 ],[
 638         LB_LINUX_TRY_COMPILE([
 639                 #include <linux/fs.h>
 640         ],[
 641            ((struct file_operations *)0)->fsync(NULL, 0);
 642         ],[
 643                 AC_DEFINE(HAVE_FILE_FSYNC_2ARGS, 1,
 644                         [file_operations.fsync takes 2 arguments])
 645                 AC_MSG_RESULT([yes, 2 args])
 646         ],[
 647                 AC_MSG_RESULT([no])
 648         ])
 649 ])
 650 ])
 651
 652 #
 653 # 2.6.37 remove kernel_locked
 654 #
 655 AC_DEFUN([LC_KERNEL_LOCKED],
 656 [AC_MSG_CHECKING([if kernel_locked is defined])
 657 LB_LINUX_TRY_COMPILE([
 658         #include <linux/smp_lock.h>
 659 ],[
 660         kernel_locked();
 661 ],[
 662         AC_MSG_RESULT([yes])
 663         AC_DEFINE(HAVE_KERNEL_LOCKED, 1,
 664                 [kernel_locked is defined])
 665 ],[
 666         AC_MSG_RESULT([no])
 667 ])
 668 ])
 669
 670 #
 671 # 2.6.38 dentry_operations.d_compare() taken 7 arguments.
 672 #
 673 AC_DEFUN([LC_D_COMPARE_7ARGS],
 674 [AC_MSG_CHECKING([if d_compare taken 7 arguments])
 675 LB_LINUX_TRY_COMPILE([
 676         #include <linux/dcache.h>
 677 ],[
 678         ((struct dentry_operations*)0)->d_compare(NULL,NULL,NULL,NULL,0,NULL,NULL);
 679 ],[
 680         AC_DEFINE(HAVE_D_COMPARE_7ARGS, 1,
 681                 [d_compare need 7 arguments])
 682         AC_MSG_RESULT([yes])
 683 ],[
 684         AC_MSG_RESULT([no])
 685 ])
 686 ])
 687
 688 #
 689 # 2.6.38 dentry_operations.d_delete() defined 'const' for 1st parameter.
 690 #
 691 AC_DEFUN([LC_D_DELETE_CONST],
 692 [AC_MSG_CHECKING([if d_delete has const declare on first parameter])
 693 tmp_flags="$EXTRA_KCFLAGS"
 694 EXTRA_KCFLAGS="-Werror"
 695 LB_LINUX_TRY_COMPILE([
 696         #include <linux/dcache.h>
 697 ],[
 698         const struct dentry *d = NULL;
 699         ((struct dentry_operations*)0)->d_delete(d);
 700 ],[
 701         AC_DEFINE(HAVE_D_DELETE_CONST, const,
 702                 [d_delete first parameter declared const])
 703         AC_MSG_RESULT([yes])
 704 ],[
 705         AC_DEFINE(HAVE_D_DELETE_CONST, , [])
 706         AC_MSG_RESULT([no])
 707 ])
 708 EXTRA_KCFLAGS="$tmp_flags"
 709 ])
 710
 711 #
 712 # 2.6.38 dcache_lock removed. rcu-walk commited.
 713 #
 714 AC_DEFUN([LC_DCACHE_LOCK],
 715 [AC_MSG_CHECKING([if dcache_lock is exist])
 716 LB_LINUX_TRY_COMPILE([
 717         #include <linux/dcache.h>
 718 ],[
 719         spin_lock(&dcache_lock);
 720 ],[
 721         AC_DEFINE(HAVE_DCACHE_LOCK, 1,
 722                 [dcache_lock is exist])
 723         AC_MSG_RESULT([yes])
 724 ],[
 725         AC_MSG_RESULT([no])
 726 ])
 727 ])
 728
 729 #
 730 # 2.6.38 inode.i_rcu added.
 731 #
 732 AC_DEFUN([LC_INODE_I_RCU],
 733 [AC_MSG_CHECKING([if inode.i_rcu exists])
 734 LB_LINUX_TRY_COMPILE([
 735         #include <linux/fs.h>
 736 ],[
 737         struct inode ino;
 738         struct rcu_head rcu = {};
 739         ino.i_rcu = rcu;
 740 ],[
 741         AC_DEFINE(HAVE_INODE_I_RCU, 1,
 742                 [inode.i_rcu exists])
 743         AC_MSG_RESULT([yes])
 744 ],[
 745         AC_MSG_RESULT([no])
 746 ])
 747 ])
 748
 749 #
 750 # 2.6.38 export blkdev_get_by_dev
 751 #
 752 AC_DEFUN([LC_BLKDEV_GET_BY_DEV],
 753 [LB_CHECK_SYMBOL_EXPORT([blkdev_get_by_dev],
 754 [fs/block_dev.c],[
 755 AC_DEFINE(HAVE_BLKDEV_GET_BY_DEV, 1,
 756             [blkdev_get_by_dev is exported by the kernel])
 757 ],[
 758 ])
 759 ])
 760
 761 #
 762 # 2.6.38 use path as 4th parameter in quota_on.
 763 #
 764 AC_DEFUN([LC_QUOTA_ON_USE_PATH],
 765 [AC_MSG_CHECKING([quota_on use path as parameter])
 766 tmp_flags="$EXTRA_KCFLAGS"
 767 EXTRA_KCFLAGS="-Werror"
 768 LB_LINUX_TRY_COMPILE([
 769         #include <linux/fs.h>
 770         #include <linux/quota.h>
 771 ],[
 772         ((struct quotactl_ops *)0)->quota_on(NULL, 0, 0, ((struct path*)0));
 773 ],[
 774         AC_DEFINE(HAVE_QUOTA_ON_USE_PATH, 1,
 775                 [quota_on use path as 4th paramter])
 776         AC_MSG_RESULT([yes])
 777 ],[
 778         AC_MSG_RESULT([no])
 779 ])
 780 EXTRA_KCFLAGS="$tmp_flags"
 781 ])
 782
 783 #
 784 # 2.6.38 export simple_setattr
 785 #
 786 AC_DEFUN([LC_EXPORT_SIMPLE_SETATTR],
 787 [LB_CHECK_SYMBOL_EXPORT([simple_setattr],
 788 [fs/libfs.c],[
 789 AC_DEFINE(HAVE_SIMPLE_SETATTR, 1,
 790             [simple_setattr is exported by the kernel])
 791 ],[
 792 ])
 793 ])
 794
 795 #
 796 # 2.6.39 remove unplug_fn from request_queue.
 797 #
 798 AC_DEFUN([LC_REQUEST_QUEUE_UNPLUG_FN],
 799 [AC_MSG_CHECKING([if request_queue has unplug_fn field])
 800 LB_LINUX_TRY_COMPILE([
 801         #include <linux/blkdev.h>
 802 ],[
 803         do{ }while(sizeof(((struct request_queue *)0)->unplug_fn));
 804 ],[
 805         AC_DEFINE(HAVE_REQUEST_QUEUE_UNPLUG_FN, 1,
 806                   [request_queue has unplug_fn field])
 807         AC_MSG_RESULT([yes])
 808 ],[
 809         AC_MSG_RESULT([no])
 810 ])
 811 ])
 812
 813 #
 814 # 2.6.39 replace get_sb with mount in struct file_system_type
 815 #
 816 AC_DEFUN([LC_HAVE_FSTYPE_MOUNT],
 817 [AC_MSG_CHECKING([if file_system_type has mount field])
 818 LB_LINUX_TRY_COMPILE([
 819         #include <linux/fs.h>
 820 ],[
 821         struct file_system_type fst;
 822         void *i = (void *) fst.mount;
 823 ],[
 824         AC_DEFINE(HAVE_FSTYPE_MOUNT, 1,
 825                 [struct file_system_type has mount field])
 826         AC_MSG_RESULT([yes])
 827 ],[
 828         AC_MSG_RESULT([no])
 829 ])
 830 ])
 831
 832 #
 833 # 3.0 dirty_inode() has a flag parameter
 834 # see kernel commit aa38572954ade525817fe88c54faebf85e5a61c0
 835 #
 836 AC_DEFUN([LC_DIRTY_INODE_WITH_FLAG],
 837 [AC_MSG_CHECKING([if dirty_inode super_operation takes flag])
 838 LB_LINUX_TRY_COMPILE([
 839         #include <linux/fs.h>
 840 ],[
 841         struct inode *inode;
 842         inode->i_sb->s_op->dirty_inode(NULL, 0);
 843 ],[
 844         AC_DEFINE(HAVE_DIRTY_INODE_HAS_FLAG, 1,
 845                   [dirty_inode super_operation takes flag])
 846         AC_MSG_RESULT([yes])
 847 ],[
 848         AC_MSG_RESULT([no])
 849 ])
 850 ])
 851
 852 #
 853 # 2.6.38 generic_permission taken 4 parameters.
 854 # in fact, it means rcu-walk aware permission bring.
 855 #
 856 # 3.1 generic_permission taken 2 parameters.
 857 # see kernel commit 2830ba7f34ebb27c4e5b8b6ef408cd6d74860890
 858 #
 859 AC_DEFUN([LC_GENERIC_PERMISSION],
 860 [AC_MSG_CHECKING([if generic_permission take 2 or 4 arguments])
 861 LB_LINUX_TRY_COMPILE([
 862         #include <linux/fs.h>
 863 ],[
 864         generic_permission(NULL, 0);
 865 ],[
 866         AC_DEFINE(HAVE_GENERIC_PERMISSION_2ARGS, 1,
 867                   [generic_permission taken 2 arguments])
 868         AC_MSG_RESULT([yes, 2 args])
 869 ],[
 870         LB_LINUX_TRY_COMPILE([
 871                 #include <linux/fs.h>
 872         ],[
 873                 generic_permission(NULL, 0, 0, NULL);
 874         ],[
 875                 AC_DEFINE(HAVE_GENERIC_PERMISSION_4ARGS, 1,
 876                           [generic_permission taken 4 arguments])
 877                 AC_MSG_RESULT([yes, 4 args])
 878         ],[
 879                 AC_MSG_RESULT([no])
 880         ])
 881 ])
 882 ])
 883
 884 #
 885 # 3.1 renames lock-manager ops(lock_manager_operations) from fl_xxx to lm_xxx
 886 # see kernel commit 8fb47a4fbf858a164e973b8ea8ef5e83e61f2e50
 887 #
 888 AC_DEFUN([LC_LM_XXX_LOCK_MANAGER_OPS],
 889 [AC_MSG_CHECKING([if lock-manager ops renamed to lm_xxx])
 890 LB_LINUX_TRY_COMPILE([
 891         #include <linux/fs.h>
 892 ],[
 893         struct lock_manager_operations lm_ops;
 894         lm_ops.lm_compare_owner = NULL;
 895 ],[
 896         AC_DEFINE(HAVE_LM_XXX_LOCK_MANAGER_OPS, 1,
 897                   [lock-manager ops renamed to lm_xxx])
 898         AC_MSG_RESULT([yes])
 899 ],[
 900         AC_MSG_RESULT([no])
 901 ])
 902 ])
 903
 904 #
 905 # 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait/
 906 #     inode_dio_done instead.
 907 # see kernel commit bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3
 908 #
 909 AC_DEFUN([LC_INODE_DIO_WAIT],
 910 [AC_MSG_CHECKING([if inode->i_alloc_sem is killed and use inode_dio_wait/done.])
 911 LB_LINUX_TRY_COMPILE([
 912         #include <linux/fs.h>
 913 ],[
 914         inode_dio_wait((struct inode *)0);
 915         inode_dio_done((struct inode *)0);
 916 ],[
 917         AC_DEFINE(HAVE_INODE_DIO_WAIT, 1,
 918                   [inode->i_alloc_sem is killed and use inode_dio_wait/done])
 919         AC_MSG_RESULT([yes])
 920 ],[
 921         AC_MSG_RESULT([no])
 922 ])
 923 ])
 924
 925 #
 926 # 3.1 adds get_acl method to inode_operations to read ACL from disk.
 927 # see kernel commit 4e34e719e457f2e031297175410fc0bd4016a085
 928 #
 929 AC_DEFUN([LC_IOP_GET_ACL],
 930 [AC_MSG_CHECKING([inode_operations has .get_acl member function])
 931 LB_LINUX_TRY_COMPILE([
 932         #include <linux/fs.h>
 933 ],[
 934         struct inode_operations iop;
 935         iop.get_acl = NULL;
 936 ],[
 937         AC_DEFINE(HAVE_IOP_GET_ACL, 1,
 938                   [inode_operations has .get_acl member function])
 939         AC_MSG_RESULT([yes])
 940 ],[
 941         AC_MSG_RESULT([no])
 942 ])
 943 ])
 944
 945 #
 946 # 3.1.1 has ext4_blocks_for_truncate
 947 #
 948 AC_DEFUN([LC_BLOCKS_FOR_TRUNCATE],
 949 [AC_MSG_CHECKING([if kernel has ext4_blocks_for_truncate])
 950 LB_LINUX_TRY_COMPILE([
 951         #include <linux/fs.h>
 952         #include "$LINUX/fs/ext4/ext4_jbd2.h"
 953         #include "$LINUX/fs/ext4/truncate.h"
 954 ],[
 955         ext4_blocks_for_truncate(NULL);
 956 ],[
 957         AC_MSG_RESULT([yes])
 958         AC_DEFINE(HAVE_BLOCKS_FOR_TRUNCATE, 1,
 959                   [kernel has ext4_blocks_for_truncate])
 960 ],[
 961         AC_MSG_RESULT([no])
 962 ])
 963 ])
 964
 965 #
 966 # 3.1 introduced generic_file_llseek_size()
 967 #
 968 AC_DEFUN([LC_FILE_LLSEEK_SIZE],
 969         [LB_CHECK_SYMBOL_EXPORT([generic_file_llseek_size],
 970         [fs/read_write.c],
 971         [AC_DEFINE(HAVE_FILE_LLSEEK_SIZE, 1,
 972                    [generic_file_llseek_size is exported by the kernel])])
 973 ])
 974
 975 #
 976 # 3.2 request_queue.make_request_fn defined as function returns with void
 977 # see kernel commit 5a7bbad27a410350e64a2d7f5ec18fc73836c14f
 978 #
 979 AC_DEFUN([LC_HAVE_VOID_MAKE_REQUEST_FN],
 980 [AC_MSG_CHECKING([if request_queue.make_request_fn returns void but not int])
 981 LB_LINUX_TRY_COMPILE([
 982         #include <linux/blkdev.h>
 983 ],[
 984         int ret;
 985         make_request_fn         *mrf;
 986         ret = mrf(NULL, NULL);
 987 ],[
 988         AC_MSG_RESULT([no])
 989 ],[
 990         AC_DEFINE(HAVE_VOID_MAKE_REQUEST_FN, 1,
 991                   [request_queue.make_request_fn returns void but not int])
 992         AC_MSG_RESULT([yes])
 993 ])
 994 ])
 995
 996 #
 997 # 3.2 protects inode->i_nlink from direct modification
 998 # see kernel commit a78ef704a8dd430225955f0709b22d4a6ba21deb
 999 # at the same time adds set_nlink(), so checks set_nlink() for it.
1000 #
1001 AC_DEFUN([LC_HAVE_PROTECT_I_NLINK],
1002 [AC_MSG_CHECKING([if inode->i_nlink is protected from direct modification])
1003 LB_LINUX_TRY_COMPILE([
1004         #include <linux/fs.h>
1005 ],[
1006         struct inode i;
1007         set_nlink(&i, 1);
1008 ],[
1009         AC_DEFINE(HAVE_PROTECT_I_NLINK, 1,
1010                   [inode->i_nlink is protected from direct modification])
1011         AC_MSG_RESULT([yes])
1012 ],[
1013         AC_MSG_RESULT([no])
1014 ])
1015 ])
1016
1017 #
1018 # 3.3 introduces migrate_mode.h and migratepage has 4 args
1019 #
1020 AC_DEFUN([LC_HAVE_MIGRATE_HEADER],
1021 [LB_CHECK_FILE([$LINUX/include/linux/migrate.h],[
1022                 AC_DEFINE(HAVE_MIGRATE_H, 1,
1023                 [kernel has include/linux/migrate.h])
1024 ],[LB_CHECK_FILE([$LINUX/include/linux/migrate_mode.h],[
1025                 AC_DEFINE(HAVE_MIGRATE_MODE_H, 1,
1026                         [kernel has include/linux/migrate_mode.h])
1027 ],[
1028         AC_MSG_RESULT([no])
1029 ])
1030 ])
1031 ])
1032
1033 AC_DEFUN([LC_MIGRATEPAGE_4ARGS],
1034 [AC_MSG_CHECKING([if address_space_operations.migratepage has 4 args])
1035 LB_LINUX_TRY_COMPILE([
1036         #include <linux/fs.h>
1037 #ifdef HAVE_MIGRATE_H
1038         #include <linux/migrate.h>
1039 #elif defined(HAVE_MIGRATE_MODE_H)
1040         #include <linux/migrate_mode.h>
1041 #endif
1042 ],[
1043         struct address_space_operations aops;
1044
1045         aops.migratepage(NULL, NULL, NULL, MIGRATE_ASYNC);
1046 ],[
1047         AC_DEFINE(HAVE_MIGRATEPAGE_4ARGS, 1,
1048                 [address_space_operations.migratepage has 4 args])
1049         AC_MSG_RESULT([yes])
1050 ],[
1051         AC_MSG_RESULT([no])
1052 ])
1053 ])
1054
1055 #
1056 # 3.3 switchs super_operations to use dentry as parameter (but not vfsmount)
1057 # see kernel commit 34c80b1d93e6e20ca9dea0baf583a5b5510d92d4
1058 #
1059 AC_DEFUN([LC_SUPEROPS_USE_DENTRY],
1060 [AC_MSG_CHECKING([if super_operations use dentry as parameter])
1061 tmp_flags="$EXTRA_KCFLAGS"
1062 EXTRA_KCFLAGS="-Werror"
1063 LB_LINUX_TRY_COMPILE([
1064         #include <linux/fs.h>
1065         int show_options(struct seq_file *seq, struct dentry *root){
1066                 return 0;
1067         }
1068 ],[
1069         struct super_operations ops;
1070         ops.show_options = show_options;
1071 ],[
1072         AC_DEFINE(HAVE_SUPEROPS_USE_DENTRY, 1,
1073                   [super_operations use dentry as parameter])
1074         AC_MSG_RESULT([yes])
1075 ],[
1076         AC_MSG_RESULT([no])
1077 ])
1078 EXTRA_KCFLAGS="$tmp_flags"
1079 ])
1080
1081 #
1082 # 3.3 switchs inode_operations to use umode_t as parameter (but not int)
1083 # see kernel commit 1a67aafb5f72a436ca044293309fa7e6351d6a35
1084 #
1085 AC_DEFUN([LC_INODEOPS_USE_UMODE_T],
1086 [AC_MSG_CHECKING([if inode_operations use umode_t as parameter])
1087 tmp_flags="$EXTRA_KCFLAGS"
1088 EXTRA_KCFLAGS="-Werror"
1089 LB_LINUX_TRY_COMPILE([
1090         #include <linux/fs.h>
1091         #include <linux/types.h>
1092         int my_mknod(struct inode *dir, struct dentry *dchild,
1093                      umode_t mode, dev_t dev)
1094         {
1095                 return 0;
1096         }
1097 ],[
1098         struct inode_operations ops;
1099         ops.mknod = my_mknod;
1100 ],[
1101         AC_DEFINE(HAVE_INODEOPS_USE_UMODE_T, 1,
1102                   [inode_operations use umode_t as parameter])
1103         AC_MSG_RESULT([yes])
1104 ],[
1105         AC_MSG_RESULT([no])
1106 ])
1107 EXTRA_KCFLAGS="$tmp_flags"
1108 ])
1109
1110 # 3.4 kmap_atomic removes second argument
1111 # see kernel commit 1ec9c5ddc17aa398f05646abfcbaf315b544e62f
1112 #
1113 AC_DEFUN([LC_KMAP_ATOMIC_HAS_1ARG],
1114 [AC_MSG_CHECKING([if kmap_atomic has only 1 argument])
1115 LB_LINUX_TRY_COMPILE([
1116         #include <linux/highmem.h>
1117 ],[
1118         kmap_atomic(NULL);
1119 ],[
1120         AC_DEFINE(HAVE_KMAP_ATOMIC_HAS_1ARG, 1,
1121                   [have kmap_atomic has only 1 argument])
1122         AC_MSG_RESULT([yes])
1123 ],[
1124         AC_MSG_RESULT([no])
1125 ])
1126 ])
1127
1128 #
1129 # 3.4 switchs touch_atime to struct path
1130 # see kernel commit 68ac1234fb949b66941d94dce4157742799fc581
1131 #
1132 AC_DEFUN([LC_TOUCH_ATIME_1ARG],
1133 [AC_MSG_CHECKING([if touch_atime use one argument])
1134 LB_LINUX_TRY_COMPILE([
1135         #include <linux/fs.h>
1136 ],[
1137         touch_atime((struct path *)NULL);
1138 ],[
1139         AC_DEFINE(HAVE_TOUCH_ATIME_1ARG, 1,
1140                   [touch_atime use one argument])
1141         AC_MSG_RESULT([yes])
1142 ],[
1143         AC_MSG_RESULT([no])
1144 ])
1145 ])
1146
1147 #
1148 # 3.4 converts d_alloc_root to d_make_root
1149 # see kernel commit 32991ab305ace7017c62f8eecbe5eb36dc32e13b
1150 #
1151 AC_DEFUN([LC_HAVE_D_MAKE_ROOT],
1152 [AC_MSG_CHECKING([if have d_make_root])
1153 LB_LINUX_TRY_COMPILE([
1154         #include <linux/fs.h>
1155 ],[
1156         d_make_root((struct inode *)NULL);
1157 ],[
1158         AC_DEFINE(HAVE_D_MAKE_ROOT, 1,
1159                   [have d_make_root])
1160         AC_MSG_RESULT([yes])
1161 ],[
1162         AC_MSG_RESULT([no])
1163 ])
1164 ])
1165
1166 #
1167 # 3.5 renames end_writeback() back to clear_inode()...
1168 # see kernel commit dbd5768f87ff6fb0a4fe09c4d7b6c4a24de99430
1169 #
1170 AC_DEFUN([LC_HAVE_CLEAR_INODE],
1171 [AC_MSG_CHECKING([if have clear_inode])
1172 LB_LINUX_TRY_COMPILE([
1173         #include <linux/fs.h>
1174 ],[
1175         clear_inode((struct inode *)NULL);
1176 ],[
1177         AC_DEFINE(HAVE_CLEAR_INODE, 1,
1178                   [have clear_inode])
1179         AC_MSG_RESULT([yes])
1180 ],[
1181         AC_MSG_RESULT([no])
1182 ])
1183 ])
1184
1185 #
1186 # 3.5 encode_fh has parent inode passed in directly
1187 # see kernel commit b0b0382b
1188 #
1189 AC_DEFUN([LC_HAVE_ENCODE_FH_PARENT],
1190 [AC_MSG_CHECKING([if encode_fh have parent inode as parameter])
1191 tmp_flags="$EXTRA_KCFLAGS"
1192 EXTRA_KCFLAGS="-Werror"
1193 LB_LINUX_TRY_COMPILE([
1194         #include <linux/exportfs.h>
1195         #include <linux/fs.h>
1196         #include <linux/types.h>
1197         int ll_encode_fh(struct inode *i, __u32 *a, int *b, struct inode *p)
1198         {
1199                 return 0;
1200         }
1201 ],[
1202         struct export_operations exp_op;
1203         exp_op.encode_fh = ll_encode_fh;
1204 ],[
1205         AC_DEFINE(HAVE_ENCODE_FH_PARENT, 1,
1206                   [have parent inode as parameter])
1207         AC_MSG_RESULT([yes])
1208 ],[
1209         AC_MSG_RESULT([no])
1210 ])
1211 EXTRA_KCFLAGS="$tmp_flags"
1212 ])
1213
1214 # 3.5 has generic_file_llseek_size with 5 args
1215 AC_DEFUN([LC_FILE_LLSEEK_SIZE_5ARG],
1216 [AC_MSG_CHECKING([if kernel has generic_file_llseek_size with 5 args])
1217 LB_LINUX_TRY_COMPILE([
1218         #include <linux/fs.h>
1219 ],[
1220         generic_file_llseek_size(NULL, 0, 0, 0, 0);
1221 ], [
1222         AC_MSG_RESULT([yes])
1223         AC_DEFINE(HAVE_FILE_LLSEEK_SIZE_5ARGS, 1,
1224                 [kernel has generic_file_llseek_size with 5 args])
1225 ],[
1226         AC_MSG_RESULT([no])
1227 ])
1228 ])
1229
1230 #
1231 # 3.6 switch i_dentry/d_alias from list to hlist
1232 #
1233 AC_DEFUN([LC_HAVE_DENTRY_D_ALIAS_HLIST],
1234 [AC_MSG_CHECKING([if i_dentry/d_alias uses hlist])
1235 tmp_flags="$EXTRA_KCFLAGS"
1236 EXTRA_KCFLAGS="-Werror"
1237 LB_LINUX_TRY_COMPILE([
1238         #include <linux/fs.h>
1239         #include <linux/list.h>
1240 ],[
1241         struct inode inode;
1242         struct dentry dentry;
1243         struct hlist_head head;
1244         struct hlist_node node;
1245         inode.i_dentry = head;
1246         dentry.d_alias = node;
1247 ],[
1248         AC_DEFINE(HAVE_DENTRY_D_ALIAS_HLIST, 1,
1249                   [have i_dentry/d_alias uses hlist])
1250         AC_MSG_RESULT([yes])
1251 ],[
1252         AC_MSG_RESULT([no])
1253 ])
1254 EXTRA_KCFLAGS="$tmp_flags"
1255 ])
1256
1257 #
1258 # 3.6 dentry_open uses struct path as first argument
1259 # see kernel commit 765927b2
1260 #
1261 AC_DEFUN([LC_DENTRY_OPEN_USE_PATH],
1262 [AC_MSG_CHECKING([if dentry_open uses struct path as first argument])
1263 tmp_flags="$EXTRA_KCFLAGS"
1264 EXTRA_KCFLAGS="-Werror"
1265 LB_LINUX_TRY_COMPILE([
1266         #include <linux/fs.h>
1267         #include <linux/path.h>
1268 ],[
1269         struct path path;
1270         dentry_open(&path, 0, NULL);
1271 ],[
1272         AC_DEFINE(HAVE_DENTRY_OPEN_USE_PATH, 1,
1273                   [dentry_open uses struct path as first argument])
1274         AC_MSG_RESULT([yes])
1275 ],[
1276         AC_MSG_RESULT([no])
1277 ])
1278 EXTRA_KCFLAGS="$tmp_flags"
1279 ])
1280
1281 #
1282 # 3.6 vfs adds iop->atomic_open
1283 #
1284 AC_DEFUN([LC_HAVE_IOP_ATOMIC_OPEN],
1285 [AC_MSG_CHECKING([if iop has atomic_open])
1286 LB_LINUX_TRY_COMPILE([
1287         #include <linux/fs.h>
1288 ],[
1289         struct inode_operations iop;
1290         iop.atomic_open = NULL;
1291 ],[
1292         AC_DEFINE(HAVE_IOP_ATOMIC_OPEN, 1,
1293                   [have iop atomic_open])
1294         AC_MSG_RESULT([yes])
1295 ],[
1296         AC_MSG_RESULT([no])
1297 ])
1298 ])
1299
1300 #
1301 # 3.7 posix_acl_{to,from}_xattr take struct user_namespace
1302 #
1303 AC_DEFUN([LC_HAVE_POSIXACL_USER_NS],
1304 [AC_MSG_CHECKING([if posix_acl_to_xattr takes struct user_namespace])
1305 LB_LINUX_TRY_COMPILE([
1306         #include <linux/fs.h>
1307         #include <linux/posix_acl_xattr.h>
1308 ],[
1309         posix_acl_to_xattr((struct user_namespace *)NULL, NULL, NULL, 0);
1310 ],[
1311         AC_DEFINE(HAVE_POSIXACL_USER_NS, 1,
1312                   [posix_acl_to_xattr takes struct user_namespace])
1313         AC_MSG_RESULT([yes])
1314 ],[
1315         AC_MSG_RESULT([no])
1316 ])
1317 ])
1318
1319 #
1320 # 3.9 uses hlist_for_each_entry with 3 args
1321 # b67bfe0d42cac56c512dd5da4b1b347a23f4b70a
1322 #
1323 AC_DEFUN([LC_HAVE_HLIST_FOR_EACH_3ARG],
1324 [AC_MSG_CHECKING([if hlist_for_each_entry has 3 args])
1325 LB_LINUX_TRY_COMPILE([
1326         #include <linux/list.h>
1327         #include <linux/fs.h>
1328 ],[
1329         struct inode *inode;
1330         struct dentry *dentry;
1331         hlist_for_each_entry(dentry, &inode->i_dentry, d_alias) {
1332                 continue;
1333         }
1334 ],[
1335         AC_DEFINE(HAVE_HLIST_FOR_EACH_3ARG, 1, [3 args])
1336         AC_MSG_RESULT([yes])
1337 ],[
1338         AC_MSG_RESULT([no])
1339 ])
1340 ])
1341
1342 #
1343 # 3.9 killed f_vfsmnt by
1344 # 182be684784334598eee1d90274e7f7aa0063616
1345 # replacement is f_path.mnt
1346 #
1347 AC_DEFUN([LC_HAVE_F_PATH_MNT],
1348 [AC_MSG_CHECKING([if struct file has f_path.mnt])
1349 LB_LINUX_TRY_COMPILE([
1350         #include <linux/fs.h>
1351 ],[
1352         struct file *fp = NULL;
1353         struct path  path;
1354
1355         path.mnt = fp->f_path.mnt;
1356 ],[
1357         AC_DEFINE(HAVE_F_PATH_MNT,1,[yes])
1358         AC_MSG_RESULT([yes])
1359 ],[
1360         AC_MSG_RESULT([no])
1361 ])
1362 ])
1363
1364 #
1365 # LC_PROG_LINUX
1366 #
1367 # Lustre linux kernel checks
1368 #
1369 AC_DEFUN([LC_PROG_LINUX],
1370          [
1371          LC_CONFIG_PINGER
1372          LC_CONFIG_CHECKSUM
1373          LC_CONFIG_LIBLUSTRE_RECOVERY
1374          LC_CONFIG_HEALTH_CHECK_WRITE
1375          LC_CONFIG_LRU_RESIZE
1376          LC_LLITE_LLOOP_MODULE
1377
1378          LC_CAPA_CRYPTO
1379          LC_CONFIG_RMTCLIENT
1380          LC_CONFIG_GSS
1381
1382          # 2.6.24
1383          LC_BIO_ENDIO_2ARG
1384          LC_PROCFS_DELETED
1385
1386          # 2.6.27
1387          LC_QUOTA_ON_5ARGS
1388          LC_QUOTA_OFF_3ARGS
1389
1390          # 2.6.27.15-2 sles11
1391          LC_BI_HW_SEGMENTS
1392          LC_HAVE_QUOTAIO_H
1393
1394          # 2.6.32
1395          LC_BLK_QUEUE_MAX_SEGMENTS
1396
1397          # 2.6.34
1398          LC_HAVE_DQUOT_FS_DISK_QUOTA
1399          LC_HAVE_DQUOT_SUSPEND
1400
1401          # 2.6.35, 3.0.0
1402          LC_FILE_FSYNC
1403          LC_EXPORT_SIMPLE_SETATTR
1404          LC_EXPORT_TRUNCATE_COMPLETE_PAGE
1405
1406          # 2.6.36
1407          LC_FS_STRUCT_RWLOCK
1408          LC_SBOPS_EVICT_INODE
1409
1410          # 2.6.37
1411          LC_KERNEL_LOCKED
1412
1413          # 2.6.38
1414          LC_BLKDEV_GET_BY_DEV
1415          LC_GENERIC_PERMISSION
1416          LC_QUOTA_ON_USE_PATH
1417          LC_DCACHE_LOCK
1418          LC_INODE_I_RCU
1419          LC_D_COMPARE_7ARGS
1420          LC_D_DELETE_CONST
1421
1422          # 2.6.39
1423          LC_REQUEST_QUEUE_UNPLUG_FN
1424          LC_HAVE_FSTYPE_MOUNT
1425
1426          # 3.0
1427          LC_DIRTY_INODE_WITH_FLAG
1428
1429          # 3.1
1430          LC_LM_XXX_LOCK_MANAGER_OPS
1431          LC_INODE_DIO_WAIT
1432          LC_IOP_GET_ACL
1433          LC_FILE_LLSEEK_SIZE
1434          LC_INODE_PERMISION_2ARGS
1435
1436          # 3.1.1
1437          LC_BLOCKS_FOR_TRUNCATE
1438
1439          # 3.2
1440          LC_HAVE_VOID_MAKE_REQUEST_FN
1441          LC_HAVE_PROTECT_I_NLINK
1442
1443          # 3.3
1444          LC_HAVE_MIGRATE_HEADER
1445          LC_MIGRATEPAGE_4ARGS
1446          LC_SUPEROPS_USE_DENTRY
1447          LC_INODEOPS_USE_UMODE_T
1448
1449          # 3.4
1450          LC_TOUCH_ATIME_1ARG
1451          LC_HAVE_D_MAKE_ROOT
1452          LC_KMAP_ATOMIC_HAS_1ARG
1453
1454          # 3.5
1455          LC_HAVE_CLEAR_INODE
1456          LC_HAVE_ENCODE_FH_PARENT
1457          LC_FILE_LLSEEK_SIZE_5ARG
1458
1459          # 3.6
1460          LC_HAVE_DENTRY_D_ALIAS_HLIST
1461          LC_DENTRY_OPEN_USE_PATH
1462          LC_HAVE_IOP_ATOMIC_OPEN
1463
1464          # 3.7
1465          LC_HAVE_POSIXACL_USER_NS
1466
1467          # 3.9
1468          LC_HAVE_HLIST_FOR_EACH_3ARG
1469          LC_HAVE_F_PATH_MNT
1470
1471          #
1472          if test x$enable_server != xno ; then
1473                 LC_FUNC_DEV_SET_RDONLY
1474                 LC_STACK_SIZE
1475                 LC_QUOTA64
1476                 LC_QUOTA_CONFIG
1477          fi
1478 ])
1479
1480 #
1481 # LC_CONFIG_CLIENT
1482 #
1483 # Check whether to build the client side of Lustre
1484 #
1485 AC_DEFUN([LC_CONFIG_CLIENT],
1486 [AC_MSG_CHECKING([whether to build Lustre client support])
1487 AC_ARG_ENABLE([client],
1488         AC_HELP_STRING([--disable-client],
1489                         [disable Lustre client support]),
1490         [],[enable_client='yes'])
1491 AC_MSG_RESULT([$enable_client])
1492 ])
1493
1494 #
1495 # LC_CONFIG_LIBLUSTRE
1496 #
1497 # whether to build liblustre
1498 #
1499 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
1500 [AC_MSG_CHECKING([whether to build Lustre library])
1501 AC_ARG_ENABLE([liblustre],
1502         AC_HELP_STRING([--disable-liblustre],
1503                         [disable building of Lustre library]),
1504         [],[enable_liblustre=$with_sysio])
1505 AC_MSG_RESULT([$enable_liblustre])
1506 # only build sysio if liblustre is built
1507 with_sysio="$enable_liblustre"
1508
1509 AC_MSG_CHECKING([whether to build liblustre tests])
1510 AC_ARG_ENABLE([liblustre-tests],
1511         AC_HELP_STRING([--enable-liblustre-tests],
1512                         [enable liblustre tests, if --disable-tests is used]),
1513         [],[enable_liblustre_tests=$enable_tests])
1514 if test x$enable_liblustre != xyes ; then
1515    enable_liblustre_tests='no'
1516 fi
1517 AC_MSG_RESULT([$enable_liblustre_tests])
1518
1519 AC_MSG_CHECKING([whether to enable liblustre acl])
1520 AC_ARG_ENABLE([liblustre-acl],
1521         AC_HELP_STRING([--disable-liblustre-acl],
1522                         [disable ACL support for liblustre]),
1523         [],[enable_liblustre_acl=yes])
1524 AC_MSG_RESULT([$enable_liblustre_acl])
1525 if test x$enable_liblustre_acl = xyes ; then
1526   AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
1527 fi
1528
1529 #
1530 # --enable-mpitest
1531 #
1532 AC_ARG_ENABLE(mpitests,
1533         AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
1534                            [include mpi tests]),
1535         [
1536          enable_mpitests=yes
1537          case $enableval in
1538          yes)
1539                 MPICC_WRAPPER=mpicc
1540                 ;;
1541          no)
1542                 enable_mpitests=no
1543                 ;;
1544          *)
1545                 MPICC_WRAPPER=$enableval
1546                  ;;
1547          esac
1548         ],
1549         [
1550         MPICC_WRAPPER=mpicc
1551         enable_mpitests=yes
1552         ]
1553 )
1554
1555 if test x$enable_mpitests != xno; then
1556         AC_MSG_CHECKING([whether mpitests can be built])
1557         oldcc=$CC
1558         CC=$MPICC_WRAPPER
1559         AC_LINK_IFELSE(
1560             [AC_LANG_PROGRAM([[
1561                     #include <mpi.h>
1562                 ]],[[
1563                     int flag;
1564                     MPI_Initialized(&flag);
1565                 ]])],
1566             [
1567                     AC_MSG_RESULT([yes])
1568             ],[
1569                     AC_MSG_RESULT([no])
1570                     enable_mpitests=no
1571         ])
1572         CC=$oldcc
1573 fi
1574 AC_SUBST(MPICC_WRAPPER)
1575
1576 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
1577 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
1578
1579 LC_CONFIG_PINGER
1580 LC_CONFIG_LIBLUSTRE_RECOVERY
1581 ])
1582
1583 #
1584 # LC_CONFIG_QUOTA
1585 #
1586 # whether to enable quota support global control
1587 #
1588 AC_DEFUN([LC_CONFIG_QUOTA],
1589 [AC_ARG_ENABLE([quota],
1590         AC_HELP_STRING([--enable-quota],
1591                         [enable quota support]),
1592         [],[enable_quota='yes'])
1593 ])
1594
1595 AC_DEFUN([LC_QUOTA],
1596 [#check global
1597 LC_CONFIG_QUOTA
1598 #check for utils
1599 if test x$enable_quota != xno -a x$enable_utils != xno; then
1600 AC_CHECK_HEADER(sys/quota.h,
1601                 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
1602                 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
1603 fi
1604 ])
1605
1606 #
1607 # LC_CONFIG_SPLIT
1608 #
1609 # whether to enable split support
1610 #
1611 AC_DEFUN([LC_CONFIG_SPLIT],
1612 [AC_MSG_CHECKING([whether to enable split support])
1613 AC_ARG_ENABLE([split],
1614         AC_HELP_STRING([--enable-split],
1615                         [enable split support]),
1616         [],[enable_split='no'])
1617 AC_MSG_RESULT([$enable_split])
1618 if test x$enable_split != xno; then
1619    AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
1620 fi
1621 ])
1622
1623 #
1624 # LC_LLITE_LLOOP_MODULE
1625 # lloop_llite.ko does not currently work with page sizes
1626 # of 64k or larger.
1627 #
1628 AC_DEFUN([LC_LLITE_LLOOP_MODULE],
1629 [AC_MSG_CHECKING([whether to enable llite_lloop module])
1630 LB_LINUX_TRY_COMPILE([
1631         #include <asm/page.h>
1632 ],[
1633         #if PAGE_SIZE >= 65536
1634         #error "PAGE_SIZE >= 65536"
1635         #endif
1636 ],[
1637         enable_llite_lloop_module='yes'
1638         AC_MSG_RESULT([yes])
1639 ],[
1640         enable_llite_lloop_module='no'
1641         AC_MSG_RESULT([no])
1642 ])
1643 ])
1644
1645 #
1646 # LC_OSD_ADDON
1647 #
1648 # configure support for optional OSD implementation
1649 #
1650 AC_DEFUN([LC_OSD_ADDON],
1651 [AC_MSG_CHECKING([for osd])
1652 AC_ARG_WITH([osd],
1653         AC_HELP_STRING([--with-osd=path],
1654                        [set path to optional osd]),
1655         [
1656                 case $with_osd in
1657                         no)     ENABLEOSDADDON=0
1658                                 ;;
1659                         *)      OSDADDON="${with_osd}"
1660                                 ENABLEOSDADDON=1
1661                                 ;;
1662                 esac
1663         ], [
1664                 ENABLEOSDADDON=0
1665         ])
1666 if test $ENABLEOSDADDON -eq 0; then
1667         AC_MSG_RESULT([no])
1668         OSDADDON=
1669 else
1670         OSDMODNAME=`basename $OSDADDON`
1671         if test -e $LUSTRE/$OSDMODNAME; then
1672                 AC_MSG_RESULT([can't link])
1673                 OSDADDON=
1674         elif ln -s $OSDADDON $LUSTRE/$OSDMODNAME; then
1675                 AC_MSG_RESULT([$OSDMODNAME])
1676                 OSDADDON="subdir-m += $OSDMODNAME"
1677         else
1678                 AC_MSG_RESULT([can't link])
1679                 OSDADDON=
1680         fi
1681 fi
1682 AC_SUBST(OSDADDON)
1683 ])
1684
1685 #
1686 # LC_CONFIGURE
1687 #
1688 # other configure checks
1689 #
1690 AC_DEFUN([LC_CONFIGURE],
1691 [LC_CONFIG_OBD_BUFFER_SIZE
1692
1693 if test $target_cpu == "i686" -o $target_cpu == "x86_64"; then
1694         CFLAGS="$CFLAGS -Werror"
1695 fi
1696
1697 # maximum MDS thread count
1698 LC_MDS_MAX_THREADS
1699
1700 # include/liblustre.h
1701 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
1702
1703 # liblustre/llite_lib.h
1704 AC_CHECK_HEADERS([xtio.h file.h])
1705
1706 # liblustre/dir.c
1707 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
1708
1709 # liblustre/lutil.c
1710 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
1711 AC_CHECK_FUNCS([inet_ntoa])
1712
1713 # libsysio/src/readlink.c
1714 LC_READLINK_SSIZE_T
1715
1716 # lvfs/prng.c - depends on linux/types.h from liblustre/dir.c
1717 AC_CHECK_HEADERS([linux/random.h], [], [],
1718                  [#ifdef HAVE_LINUX_TYPES_H
1719                   # include <linux/types.h>
1720                   #endif
1721                  ])
1722
1723 # utils/llverfs.c
1724 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
1725
1726 # check for -lz support
1727 ZLIB=""
1728 AC_CHECK_LIB([z],
1729              [adler32],
1730              [AC_CHECK_HEADERS([zlib.h],
1731                                [ZLIB="-lz"
1732                                 AC_DEFINE([HAVE_ADLER], 1,
1733                                           [support alder32 checksum type])],
1734                                [AC_MSG_WARN([No zlib-devel package found,
1735                                              unable to use adler32 checksum])])],
1736              [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
1737 )
1738 AC_SUBST(ZLIB)
1739
1740 SELINUX=""
1741 AC_CHECK_LIB([selinux],
1742                 [is_selinux_enabled],
1743                 [AC_CHECK_HEADERS([selinux.h],
1744                                 [SELINUX="-lselinux"
1745                                 AC_DEFINE([HAVE_SELINUX], 1,
1746                                                 [support for selinux ])],
1747                                 [AC_MSG_WARN([No selinux-devel package found,
1748                                                 unable to build selinux enabled
1749                                                 tools])])],
1750                 [AC_MSG_WARN([No selinux package found, unable to build selinux
1751                                 enabled tools])]
1752 )
1753 AC_SUBST(SELINUX)
1754
1755 # Super safe df
1756 AC_ARG_ENABLE([mindf],
1757       AC_HELP_STRING([--enable-mindf],
1758                       [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
1759       [],[])
1760 if test "$enable_mindf" = "yes" ;  then
1761       AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
1762 fi
1763
1764 AC_ARG_ENABLE([fail_alloc],
1765         AC_HELP_STRING([--disable-fail-alloc],
1766                 [disable randomly alloc failure]),
1767         [],[enable_fail_alloc=yes])
1768 AC_MSG_CHECKING([whether to randomly failing memory alloc])
1769 AC_MSG_RESULT([$enable_fail_alloc])
1770 if test x$enable_fail_alloc != xno ; then
1771         AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
1772 fi
1773
1774 AC_ARG_ENABLE([invariants],
1775         AC_HELP_STRING([--enable-invariants],
1776                 [enable invariant checking (cpu intensive)]),
1777         [],[])
1778 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
1779 AC_MSG_RESULT([$enable_invariants])
1780 if test x$enable_invariants = xyes ; then
1781         AC_DEFINE([CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK], 1, [enable invariant checking])
1782 fi
1783
1784 AC_ARG_ENABLE([lu_ref],
1785         AC_HELP_STRING([--enable-lu_ref],
1786                 [enable lu_ref reference tracking code]),
1787         [],[])
1788 AC_MSG_CHECKING([whether to track references with lu_ref])
1789 AC_MSG_RESULT([$enable_lu_ref])
1790 if test x$enable_lu_ref = xyes ; then
1791         AC_DEFINE([USE_LU_REF], 1, [enable lu_ref reference tracking code])
1792 fi
1793
1794 AC_ARG_ENABLE([pgstate-track],
1795               AC_HELP_STRING([--enable-pgstate-track],
1796                              [enable page state tracking]),
1797               [enable_pgstat_track='yes'],[])
1798 AC_MSG_CHECKING([whether to enable page state tracking])
1799 AC_MSG_RESULT([$enable_pgstat_track])
1800 if test x$enable_pgstat_track = xyes ; then
1801         AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
1802                   [enable page state tracking code])
1803 fi
1804 ])
1805
1806 #
1807 # LC_CONDITIONALS
1808 #
1809 # AM_CONDITIONALS for lustre
1810 #
1811 AC_DEFUN([LC_CONDITIONALS],
1812 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
1813 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
1814 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
1815 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
1816 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
1817 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
1818 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
1819 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
1820 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
1821 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
1822 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
1823 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
1824 AM_CONDITIONAL(LLITE_LLOOP, test x$enable_llite_lloop_module = xyes)
1825 ])
1826
1827 #
1828 # LC_CONFIG_FILES
1829 #
1830 # files that should be generated with AC_OUTPUT
1831 #
1832 AC_DEFUN([LC_CONFIG_FILES],
1833 [AC_CONFIG_FILES([
1834 lustre/Makefile
1835 lustre/autoMakefile
1836 lustre/autoconf/Makefile
1837 lustre/conf/Makefile
1838 lustre/contrib/Makefile
1839 lustre/doc/Makefile
1840 lustre/include/Makefile
1841 lustre/include/lustre_ver.h
1842 lustre/include/linux/Makefile
1843 lustre/include/darwin/Makefile
1844 lustre/include/lustre/Makefile
1845 lustre/kernel_patches/targets/2.6-rhel6.target
1846 lustre/kernel_patches/targets/2.6-rhel5.target
1847 lustre/kernel_patches/targets/2.6-sles11.target
1848 lustre/kernel_patches/targets/3.0-sles11.target
1849 lustre/kernel_patches/targets/3.0-sles11sp3.target
1850 lustre/kernel_patches/targets/2.6-fc11.target
1851 lustre/kernel_patches/targets/2.6-fc12.target
1852 lustre/kernel_patches/targets/2.6-fc15.target
1853 lustre/kernel_patches/targets/3.x-fc18.target
1854 lustre/ldlm/Makefile
1855 lustre/fid/Makefile
1856 lustre/fid/autoMakefile
1857 lustre/liblustre/Makefile
1858 lustre/liblustre/tests/Makefile
1859 lustre/liblustre/tests/mpi/Makefile
1860 lustre/llite/Makefile
1861 lustre/llite/autoMakefile
1862 lustre/lclient/Makefile
1863 lustre/lov/Makefile
1864 lustre/lov/autoMakefile
1865 lustre/lvfs/Makefile
1866 lustre/lvfs/autoMakefile
1867 lustre/mdc/Makefile
1868 lustre/mdc/autoMakefile
1869 lustre/lmv/Makefile
1870 lustre/lmv/autoMakefile
1871 lustre/lfsck/Makefile
1872 lustre/lfsck/autoMakefile
1873 lustre/mdt/Makefile
1874 lustre/mdt/autoMakefile
1875 lustre/mdd/Makefile
1876 lustre/mdd/autoMakefile
1877 lustre/fld/Makefile
1878 lustre/fld/autoMakefile
1879 lustre/obdclass/Makefile
1880 lustre/obdclass/autoMakefile
1881 lustre/obdclass/linux/Makefile
1882 lustre/obdecho/Makefile
1883 lustre/obdecho/autoMakefile
1884 lustre/ofd/Makefile
1885 lustre/ofd/autoMakefile
1886 lustre/osc/Makefile
1887 lustre/osc/autoMakefile
1888 lustre/ost/Makefile
1889 lustre/ost/autoMakefile
1890 lustre/osd-ldiskfs/Makefile
1891 lustre/osd-ldiskfs/autoMakefile
1892 lustre/osd-zfs/Makefile
1893 lustre/osd-zfs/autoMakefile
1894 lustre/mgc/Makefile
1895 lustre/mgc/autoMakefile
1896 lustre/mgs/Makefile
1897 lustre/mgs/autoMakefile
1898 lustre/target/Makefile
1899 lustre/ptlrpc/Makefile
1900 lustre/ptlrpc/autoMakefile
1901 lustre/ptlrpc/gss/Makefile
1902 lustre/ptlrpc/gss/autoMakefile
1903 lustre/quota/Makefile
1904 lustre/quota/autoMakefile
1905 lustre/scripts/Makefile
1906 lustre/tests/Makefile
1907 lustre/tests/mpi/Makefile
1908 lustre/utils/Makefile
1909 lustre/utils/gss/Makefile
1910 lustre/osp/Makefile
1911 lustre/osp/autoMakefile
1912 lustre/lod/Makefile
1913 lustre/lod/autoMakefile
1914 lustre/obdclass/darwin/Makefile
1915 ])
1916 ])