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(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() was exported from RHEL5/SLES10, but not in SLES11 SP0 (2.6.27)
 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],
 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 AC_DEFUN([LC_EXPORT_D_REHASH_COND],
 238 [LB_CHECK_SYMBOL_EXPORT([d_rehash_cond],
 239 [fs/dcache.c],[
 240 AC_DEFINE(HAVE_D_REHASH_COND, 1,
 241             [d_rehash_cond is exported by the kernel])
 242 ],[
 243 ])
 244 ])
 245
 246 AC_DEFUN([LC_EXPORT___D_REHASH],
 247 [LB_CHECK_SYMBOL_EXPORT([__d_rehash],
 248 [fs/dcache.c],[
 249 AC_DEFINE(HAVE___D_REHASH, 1,
 250             [__d_rehash is exported by the kernel])
 251 ],[
 252 ])
 253 ])
 254
 255 # The actual symbol exported varies among architectures, so we need
 256 # to check many symbols (but only in the current architecture.)  No
 257 # matter what symbol is exported, the kernel #defines node_to_cpumask
 258 # to the appropriate function and that's what we use.
 259 AC_DEFUN([LC_EXPORT_NODE_TO_CPUMASK],
 260          [LB_CHECK_SYMBOL_EXPORT([node_to_cpumask],
 261                                  [arch/$LINUX_ARCH/mm/numa.c],
 262                                  [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
 263                                             [node_to_cpumask is exported by
 264                                              the kernel])]) # x86_64
 265           LB_CHECK_SYMBOL_EXPORT([node_to_cpu_mask],
 266                                  [arch/$LINUX_ARCH/kernel/smpboot.c],
 267                                  [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
 268                                             [node_to_cpumask is exported by
 269                                              the kernel])]) # ia64
 270           LB_CHECK_SYMBOL_EXPORT([node_2_cpu_mask],
 271                                  [arch/$LINUX_ARCH/kernel/smpboot.c],
 272                                  [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
 273                                             [node_to_cpumask is exported by
 274                                              the kernel])]) # i386
 275           ])
 276
 277 #
 278 #
 279 # between 2.6.5 - 2.6.22 filemap_populate is exported in some kernels
 280 #
 281 AC_DEFUN([LC_FILEMAP_POPULATE],
 282 [AC_MSG_CHECKING([for exported filemap_populate])
 283 LB_LINUX_TRY_COMPILE([
 284         #include <asm/page.h>
 285         #include <linux/mm.h>
 286 ],[
 287        filemap_populate(NULL, 0, 0, __pgprot(0), 0, 0);
 288 ],[
 289         AC_MSG_RESULT([yes])
 290         AC_DEFINE(HAVE_FILEMAP_POPULATE, 1, [Kernel exports filemap_populate])
 291 ],[
 292         AC_MSG_RESULT([no])
 293 ])
 294 ])
 295
 296 #
 297 # added in 2.6.17
 298 #
 299 AC_DEFUN([LC_BIT_SPINLOCK_H],
 300 [LB_CHECK_FILE([$LINUX/include/linux/bit_spinlock.h],[
 301         AC_MSG_CHECKING([if bit_spinlock.h can be compiled])
 302         LB_LINUX_TRY_COMPILE([
 303                 #include <asm/processor.h>
 304                 #include <linux/spinlock.h>
 305                 #include <linux/bit_spinlock.h>
 306         ],[],[
 307                 AC_MSG_RESULT([yes])
 308                 AC_DEFINE(HAVE_BIT_SPINLOCK_H, 1, [Kernel has bit_spinlock.h])
 309         ],[
 310                 AC_MSG_RESULT([no])
 311         ])
 312 ],
 313 [])
 314 ])
 315
 316 #
 317 # LC_CONST_ACL_SIZE
 318 #
 319 AC_DEFUN([LC_CONST_ACL_SIZE],
 320 [AC_MSG_CHECKING([calc acl size])
 321 tmp_flags="$CFLAGS"
 322 CFLAGS="$CFLAGS -I$LINUX/include -I$LINUX_OBJ/include -I$LINUX_OBJ/include2 -I$LINUX/arch/`echo $target_cpu|sed -e 's/powerpc64/powerpc/' -e 's/x86_64/x86/' -e 's/i.86/x86/'`/include -include $AUTOCONF_HDIR/autoconf.h $EXTRA_KCFLAGS"
 323 AC_TRY_RUN([
 324         #define __KERNEL__
 325         #include <linux/types.h>
 326         #undef __KERNEL__
 327         // block include
 328         #define __LINUX_POSIX_ACL_H
 329
 330         #ifdef CONFIG_FS_POSIX_ACL
 331         # include <linux/posix_acl_xattr.h>
 332         #endif
 333
 334         #include <stdio.h>
 335
 336         int main(void)
 337         {
 338                 /* LUSTRE_POSIX_ACL_MAX_ENTRIES  = 32 */
 339             int size = posix_acl_xattr_size(32);
 340             FILE *f = fopen("acl.size","w+");
 341             fprintf(f,"%d", size);
 342             fclose(f);
 343
 344             return 0;
 345         }
 346 ],[
 347         acl_size=`cat acl.size`
 348         AC_MSG_RESULT([ACL size $acl_size])
 349         AC_DEFINE_UNQUOTED(XATTR_ACL_SIZE, AS_TR_SH([$acl_size]), [size of xattr acl])
 350 ],[
 351         AC_ERROR([ACL size can't be computed])
 352 ],[
 353         AC_MSG_RESULT([can't check ACL size, make it 260])
 354         AC_DEFINE_UNQUOTED(XATTR_ACL_SIZE,260)
 355 ])
 356 CFLAGS="$tmp_flags"
 357 ])
 358
 359 #
 360 # LC_CAPA_CRYPTO
 361 #
 362 AC_DEFUN([LC_CAPA_CRYPTO],
 363 [LB_LINUX_CONFIG_IM([CRYPTO],[],[
 364         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])
 365 ])
 366 LB_LINUX_CONFIG_IM([CRYPTO_HMAC],[],[
 367         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])
 368 ])
 369 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],[
 370         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])
 371 ])
 372 ])
 373
 374 #
 375 # LC_CONFIG_RMTCLIENT
 376 #
 377 dnl FIXME
 378 dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
 379 dnl FIXME
 380 AC_DEFUN([LC_CONFIG_RMTCLIENT],
 381 [LB_LINUX_CONFIG_IM([CRYPTO_AES],[],[
 382         AC_MSG_WARN([Lustre remote client require that CONFIG_CRYPTO_AES is enabled in your kernel.])
 383 ])
 384 ])
 385
 386 #
 387 # LC_CONFIG_GSS_KEYRING (default enabled, if gss is enabled)
 388 #
 389 AC_DEFUN([LC_CONFIG_GSS_KEYRING],
 390 [AC_MSG_CHECKING([whether to enable gss keyring backend])
 391  AC_ARG_ENABLE([gss_keyring],
 392                [AC_HELP_STRING([--disable-gss-keyring],
 393                                [disable gss keyring backend])],
 394                [],[enable_gss_keyring='yes'])
 395  AC_MSG_RESULT([$enable_gss_keyring])
 396
 397  if test x$enable_gss_keyring != xno; then
 398         LB_LINUX_CONFIG_IM([KEYS],[],
 399                            [AC_MSG_ERROR([GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.])])
 400
 401         AC_CHECK_LIB([keyutils], [keyctl_search], [],
 402                      [AC_MSG_ERROR([libkeyutils is not found, which is required by gss keyring backend])],)
 403
 404         AC_DEFINE([HAVE_GSS_KEYRING], [1],
 405                   [Define this if you enable gss keyring backend])
 406  fi
 407 ])
 408
 409 AC_DEFUN([LC_CONFIG_SUNRPC],
 410 [LB_LINUX_CONFIG_IM([SUNRPC],[],
 411                     [AC_MSG_ERROR([kernel SUNRPC support is required by using GSS.])])
 412 ])
 413
 414 #
 415 # LC_CONFIG_GSS (default disabled)
 416 #
 417 # Build gss and related tools of Lustre. Currently both kernel and user space
 418 # parts are depend on linux platform.
 419 #
 420 AC_DEFUN([LC_CONFIG_GSS],
 421 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
 422  AC_ARG_ENABLE([gss],
 423                [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
 424                [],[enable_gss='no'])
 425  AC_MSG_RESULT([$enable_gss])
 426
 427  if test x$enable_gss == xyes; then
 428         LC_CONFIG_GSS_KEYRING
 429         LC_CONFIG_SUNRPC
 430
 431         AC_DEFINE([HAVE_GSS], [1], [Define this if you enable gss])
 432
 433         LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
 434                            [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
 435         LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
 436                            [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
 437         LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
 438                            [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
 439         LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
 440                            [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
 441
 442         AC_CHECK_LIB([gssapi], [gss_export_lucid_sec_context],
 443                      [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"],
 444                      [AC_CHECK_LIB([gssglue], [gss_export_lucid_sec_context],
 445                                    [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue"],
 446                                    [AC_MSG_ERROR([libgssapi or libgssglue is not found, which is required by GSS.])])],)
 447
 448         AC_SUBST(GSSAPI_LIBS)
 449
 450         AC_KERBEROS_V5
 451  fi
 452 ])
 453
 454 AC_DEFUN([LC_TASK_CLENV_STORE],
 455 [
 456         AC_MSG_CHECKING([if we can store cl_env in task_struct])
 457         if test x$have_task_clenv_store != xyes ; then
 458                 LC_TASK_CLENV_TUX_INFO
 459         fi
 460 ])
 461
 462 # 2.6.12
 463
 464 # ~2.6.12 merge patch from oracle to convert tree_lock from spinlock to rwlock
 465 # yet tree_lock is converted from rwlock to spin_lock since v2.6.26
 466 AC_DEFUN([LC_RW_TREE_LOCK],
 467 [AC_MSG_CHECKING([if kernel has tree_lock as rwlock])
 468 tmp_flags="$EXTRA_KCFLAGS"
 469 EXTRA_KCFLAGS="-Werror"
 470 LB_LINUX_TRY_COMPILE([
 471         #include <linux/fs.h>
 472 ],[
 473         struct address_space a;
 474
 475         write_lock(&a.tree_lock);
 476 ],[
 477         AC_MSG_RESULT([yes])
 478         AC_DEFINE(HAVE_RW_TREE_LOCK, 1, [kernel has tree_lock as rw_lock])
 479 ],[
 480         AC_MSG_RESULT([no])
 481 ])
 482 EXTRA_KCFLAGS="$tmp_flags"
 483 ])
 484
 485 # 2.6.18
 486
 487 # LC_UMOUNTBEGIN_HAS_VFSMOUNT
 488 # 2.6.18~2.6.25 umount_begin has different parameters
 489 AC_DEFUN([LC_UMOUNTBEGIN_HAS_VFSMOUNT],
 490 [AC_MSG_CHECKING([if umount_begin needs vfsmount parameter instead of super_block])
 491 tmp_flags="$EXTRA_KCFLAGS"
 492 EXTRA_KCFLAGS="-Werror"
 493 LB_LINUX_TRY_COMPILE([
 494         #include <linux/fs.h>
 495
 496         struct vfsmount;
 497         static void cfg_umount_begin (struct vfsmount *v, int flags)
 498         {
 499                 ;
 500         }
 501
 502         static struct super_operations cfg_super_operations = {
 503                 .umount_begin   = cfg_umount_begin,
 504         };
 505 ],[
 506         cfg_super_operations.umount_begin(NULL,0);
 507 ],[
 508         AC_MSG_RESULT(yes)
 509         AC_DEFINE(HAVE_UMOUNTBEGIN_VFSMOUNT, 1,
 510                 [Define umount_begin need second argument])
 511 ],[
 512         AC_MSG_RESULT(no)
 513 ])
 514 EXTRA_KCFLAGS="$tmp_flags"
 515 ])
 516
 517 #2.6.18 + RHEL5 (fc6)
 518
 519 #
 520 # LC_LINUX_FIEMAP_H
 521 #
 522 # fiemap.h is added since v2.6.28
 523 # RHEL5 2.6.18 has it, while SLES10 2.6.27 does not
 524 #
 525 AC_DEFUN([LC_LINUX_FIEMAP_H],
 526 [LB_CHECK_FILE([$LINUX/include/linux/fiemap.h],[
 527         AC_MSG_CHECKING([if fiemap.h can be compiled])
 528         LB_LINUX_TRY_COMPILE([
 529                 #include <linux/types.h>
 530                 #include <linux/fiemap.h>
 531         ],[],[
 532                 AC_MSG_RESULT([yes])
 533                 AC_DEFINE(HAVE_LINUX_FIEMAP_H, 1, [Kernel has fiemap.h])
 534         ],[
 535                 AC_MSG_RESULT([no])
 536         ])
 537 ],
 538 [])
 539 ])
 540
 541 # 2.6.19
 542
 543 # LC_FILE_WRITEV
 544 # 2.6.19 replaced writev with aio_write
 545 AC_DEFUN([LC_FILE_WRITEV],
 546 [AC_MSG_CHECKING([writev in fops])
 547 LB_LINUX_TRY_COMPILE([
 548         #include <linux/fs.h>
 549 ],[
 550         struct file_operations *fops = NULL;
 551         fops->writev = NULL;
 552 ],[
 553         AC_MSG_RESULT(yes)
 554         AC_DEFINE(HAVE_FILE_WRITEV, 1,
 555                 [use fops->writev])
 556 ],[
 557         AC_MSG_RESULT(no)
 558 ])
 559 ])
 560
 561 # LC_FILE_READV
 562 # 2.6.19 replaced readv with aio_read
 563 AC_DEFUN([LC_FILE_READV],
 564 [AC_MSG_CHECKING([readv in fops])
 565 LB_LINUX_TRY_COMPILE([
 566         #include <linux/fs.h>
 567 ],[
 568         struct file_operations *fops = NULL;
 569         fops->readv = NULL;
 570 ],[
 571         AC_MSG_RESULT(yes)
 572         AC_DEFINE(HAVE_FILE_READV, 1,
 573                 [use fops->readv])
 574 ],[
 575         AC_MSG_RESULT(no)
 576 ])
 577 ])
 578
 579 # 2.6.20
 580
 581 # LC_CANCEL_DIRTY_PAGE
 582 # 2.6.20 introduced cancel_dirty_page instead of clear_page_dirty.
 583 AC_DEFUN([LC_CANCEL_DIRTY_PAGE],
 584         [AC_MSG_CHECKING([kernel has cancel_dirty_page])
 585         # the implementation of cancel_dirty_page in OFED 1.4.1's SLES10 SP2
 586         # backport is broken, so ignore it
 587         if test -f $OFED_BACKPORT_PATH/linux/mm.h &&
 588            test "$(sed -ne '/^static inline void cancel_dirty_page(struct page \*page, unsigned int account_size)$/,/^}$/p' $OFED_BACKPORT_PATH/linux/mm.h | md5sum)" = "c518cb32d6394760c5bca14cb7538d3e  -"; then
 589                 AC_MSG_RESULT(no)
 590         else
 591                 LB_LINUX_TRY_COMPILE([
 592                         #include <linux/mm.h>
 593                         #include <linux/page-flags.h>
 594 ],[
 595                         cancel_dirty_page(NULL, 0);
 596 ],[
 597                         AC_MSG_RESULT(yes)
 598                         AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
 599                                   [kernel has cancel_dirty_page instead of clear_page_dirty])
 600 ],[
 601                         AC_MSG_RESULT(no)
 602 ])
 603         fi
 604 ])
 605
 606 # raid5-zerocopy patch
 607
 608 #
 609 # LC_PAGE_CONSTANT
 610 #
 611 # In order to support raid5 zerocopy patch, we have to patch the kernel to make
 612 # it support constant page, which means the page won't be modified during the
 613 # IO.
 614 #
 615 AC_DEFUN([LC_PAGE_CONSTANT],
 616 [AC_MSG_CHECKING([if kernel have PageConstant defined])
 617 LB_LINUX_TRY_COMPILE([
 618         #include <linux/mm.h>
 619         #include <linux/page-flags.h>
 620 ],[
 621         #ifndef PG_constant
 622         #error "Have no raid5 zcopy patch"
 623         #endif
 624 ],[
 625         AC_MSG_RESULT(yes)
 626         AC_DEFINE(HAVE_PAGE_CONSTANT, 1, [kernel have PageConstant supported])
 627 ],[
 628         AC_MSG_RESULT(no);
 629 ])
 630 ])
 631
 632 # 2.6.22
 633
 634 # 2.6.22 lost second parameter for invalidate_bdev
 635 AC_DEFUN([LC_INVALIDATE_BDEV_2ARG],
 636 [AC_MSG_CHECKING([if invalidate_bdev has second argument])
 637 LB_LINUX_TRY_COMPILE([
 638         #include <linux/buffer_head.h>
 639 ],[
 640         invalidate_bdev(NULL,0);
 641 ],[
 642         AC_MSG_RESULT([yes])
 643         AC_DEFINE(HAVE_INVALIDATE_BDEV_2ARG, 1,
 644                 [invalidate_bdev has second argument])
 645 ],[
 646         AC_MSG_RESULT([no])
 647 ])
 648 ])
 649
 650 #
 651 # check for crypto API
 652 #
 653 AC_DEFUN([LC_ASYNC_BLOCK_CIPHER],
 654 [AC_MSG_CHECKING([if kernel has block cipher support])
 655 LB_LINUX_TRY_COMPILE([
 656         #include <linux/err.h>
 657         #include <linux/crypto.h>
 658 ],[
 659         struct crypto_blkcipher *tfm;
 660         tfm = crypto_alloc_blkcipher("aes", 0, sizeof(tfm) );
 661 ],[
 662         AC_MSG_RESULT([yes])
 663         AC_DEFINE(HAVE_ASYNC_BLOCK_CIPHER, 1, [kernel has block cipher support])
 664 ],[
 665         AC_MSG_RESULT([no])
 666 ])
 667 ])
 668
 669 #
 670 # check for struct hash_desc
 671 #
 672 AC_DEFUN([LC_STRUCT_HASH_DESC],
 673 [AC_MSG_CHECKING([if kernel has struct hash_desc])
 674 LB_LINUX_TRY_COMPILE([
 675         #include <linux/err.h>
 676         #include <linux/crypto.h>
 677 ],[
 678         struct hash_desc foo __attribute__ ((unused));
 679 ],[
 680         AC_MSG_RESULT([yes])
 681         AC_DEFINE(HAVE_STRUCT_HASH_DESC, 1, [kernel has struct hash_desc])
 682 ],[
 683         AC_MSG_RESULT([no])
 684 ])
 685 ])
 686
 687 #
 688 # check for struct blkcipher_desc
 689 #
 690 AC_DEFUN([LC_STRUCT_BLKCIPHER_DESC],
 691 [AC_MSG_CHECKING([if kernel has struct blkcipher_desc])
 692 LB_LINUX_TRY_COMPILE([
 693         #include <linux/err.h>
 694         #include <linux/crypto.h>
 695 ],[
 696         struct blkcipher_desc foo __attribute__ ((unused));
 697 ],[
 698         AC_MSG_RESULT([yes])
 699         AC_DEFINE(HAVE_STRUCT_BLKCIPHER_DESC, 1, [kernel has struct blkcipher_desc])
 700 ],[
 701         AC_MSG_RESULT([no])
 702 ])
 703 ])
 704
 705 #
 706 # 2.6.19 check for FS_RENAME_DOES_D_MOVE flag
 707 #
 708 AC_DEFUN([LC_FS_RENAME_DOES_D_MOVE],
 709 [AC_MSG_CHECKING([if kernel has FS_RENAME_DOES_D_MOVE flag])
 710 LB_LINUX_TRY_COMPILE([
 711         #include <linux/fs.h>
 712 ],[
 713         int v __attribute__ ((unused));
 714         v = FS_RENAME_DOES_D_MOVE;
 715 ],[
 716         AC_MSG_RESULT([yes])
 717         AC_DEFINE(HAVE_FS_RENAME_DOES_D_MOVE, 1, [kernel has FS_RENAME_DOES_D_MOVE flag])
 718 ],[
 719         AC_MSG_RESULT([no])
 720 ])
 721 ])
 722
 723 # 2.6.23
 724
 725 # 2.6.23 have return type 'void' for unregister_blkdev
 726 AC_DEFUN([LC_UNREGISTER_BLKDEV_RETURN_INT],
 727 [AC_MSG_CHECKING([if unregister_blkdev return int])
 728 LB_LINUX_TRY_COMPILE([
 729         #include <linux/fs.h>
 730 ],[
 731         int i __attribute__ ((unused));
 732         i = unregister_blkdev(0,NULL);
 733 ],[
 734         AC_MSG_RESULT([yes])
 735         AC_DEFINE(HAVE_UNREGISTER_BLKDEV_RETURN_INT, 1,
 736                 [unregister_blkdev return int])
 737 ],[
 738         AC_MSG_RESULT([no])
 739 ])
 740 ])
 741
 742 # 2.6.23 change .sendfile to .splice_read
 743 AC_DEFUN([LC_KERNEL_SPLICE_READ],
 744 [AC_MSG_CHECKING([if kernel has .splice_read])
 745 LB_LINUX_TRY_COMPILE([
 746         #include <linux/fs.h>
 747 ],[
 748         struct file_operations file;
 749
 750         file.splice_read = NULL;
 751 ], [
 752         AC_MSG_RESULT([yes])
 753         AC_DEFINE(HAVE_KERNEL_SPLICE_READ, 1,
 754                 [kernel has .slice_read])
 755 ],[
 756         AC_MSG_RESULT([no])
 757 ])
 758 ])
 759
 760 # 2.6.23 change .sendfile to .splice_read
 761 # RHEL4 (-92 kernel) have both sendfile and .splice_read API
 762 AC_DEFUN([LC_KERNEL_SENDFILE],
 763 [AC_MSG_CHECKING([if kernel has .sendfile])
 764 LB_LINUX_TRY_COMPILE([
 765         #include <linux/fs.h>
 766 ],[
 767         struct file_operations file;
 768
 769         file.sendfile = NULL;
 770 ], [
 771         AC_MSG_RESULT([yes])
 772         AC_DEFINE(HAVE_KERNEL_SENDFILE, 1,
 773                 [kernel has .sendfile])
 774 ],[
 775         AC_MSG_RESULT([no])
 776 ])
 777 ])
 778
 779 # 2.6.23 extract nfs export related data into exportfs.h
 780 AC_DEFUN([LC_HAVE_EXPORTFS_H],
 781 [LB_CHECK_FILE([$LINUX/include/linux/exportfs.h], [
 782         AC_DEFINE(HAVE_LINUX_EXPORTFS_H, 1,
 783                 [kernel has include/exportfs.h])
 784 ],[
 785         AC_MSG_RESULT([no])
 786 ])
 787 ])
 788
 789 # 2.6.23 has new page fault handling API
 790 AC_DEFUN([LC_VM_OP_FAULT],
 791 [AC_MSG_CHECKING([kernel has .fault in vm_operation_struct])
 792 LB_LINUX_TRY_COMPILE([
 793         #include <linux/mm.h>
 794 ],[
 795         struct vm_operations_struct op;
 796
 797         op.fault = NULL;
 798 ], [
 799         AC_MSG_RESULT([yes])
 800         AC_DEFINE(HAVE_VM_OP_FAULT, 1,
 801                 [kernel has .fault in vm_operation_struct])
 802 ],[
 803         AC_MSG_RESULT([no])
 804 ])
 805 ])
 806
 807 # 2.6.23 add code to wait other users to complete before removing procfs entry
 808 AC_DEFUN([LC_PROCFS_USERS],
 809 [AC_MSG_CHECKING([if kernel has pde_users member in procfs entry struct])
 810 LB_LINUX_TRY_COMPILE([
 811         #include <linux/proc_fs.h>
 812 ],[
 813         struct proc_dir_entry pde;
 814
 815         pde.pde_users   = 0;
 816 ],[
 817         AC_MSG_RESULT([yes])
 818         AC_DEFINE(HAVE_PROCFS_USERS, 1,
 819                 [kernel has pde_users member in procfs entry struct])
 820 ],[
 821         LB_LINUX_TRY_COMPILE([
 822                 #include "$LINUX/fs/proc/internal.h"
 823         ],[
 824                 struct proc_dir_entry_aux pde_aux;
 825
 826                 pde_aux.pde_users = 0;
 827         ],[
 828                 AC_MSG_RESULT([yes])
 829                 AC_DEFINE(HAVE_PROCFS_USERS, 1,
 830                         [kernel has pde_users member in proc_dir_entry_aux])
 831         ],[
 832                 AC_MSG_RESULT([no])
 833         ])
 834 ])
 835 ])
 836
 837 # 2.6.23 exports exportfs_decode_fh
 838 AC_DEFUN([LC_EXPORTFS_DECODE_FH],
 839 [LB_CHECK_SYMBOL_EXPORT([exportfs_decode_fh],
 840 [fs/exportfs/expfs.c],[
 841         AC_DEFINE(HAVE_EXPORTFS_DECODE_FH, 1,
 842                 [exportfs_decode_fh has been export])
 843 ],[
 844 ])
 845 ])
 846
 847 # 2.6.24
 848
 849 # 2.6.24 need linux/mm_types.h included
 850 AC_DEFUN([LC_HAVE_MMTYPES_H],
 851 [LB_CHECK_FILE([$LINUX/include/linux/mm_types.h], [
 852         AC_DEFINE(HAVE_LINUX_MMTYPES_H, 1,
 853                 [kernel has include/mm_types.h])
 854 ],[
 855         AC_MSG_RESULT([no])
 856 ])
 857 ])
 858
 859 # 2.6.24 has bio_endio with 2 args
 860 AC_DEFUN([LC_BIO_ENDIO_2ARG],
 861 [AC_MSG_CHECKING([if kernel has bio_endio with 2 args])
 862 LB_LINUX_TRY_COMPILE([
 863         #include <linux/bio.h>
 864 ],[
 865         bio_endio(NULL, 0);
 866 ], [
 867         AC_MSG_RESULT([yes])
 868         AC_DEFINE(HAVE_BIO_ENDIO_2ARG, 1,
 869                 [kernel has bio_endio with 2 args])
 870 ],[
 871         AC_MSG_RESULT([no])
 872 ])
 873 ])
 874
 875 # 2.6.24 has new members in exports struct.
 876 AC_DEFUN([LC_FH_TO_DENTRY],
 877 [AC_MSG_CHECKING([if kernel has .fh_to_dentry member in export_operations struct])
 878 LB_LINUX_TRY_COMPILE([
 879         #include <linux/fs.h>
 880 #ifdef HAVE_LINUX_EXPORTFS_H
 881         #include <linux/exportfs.h>
 882 #endif
 883 ],[
 884         do{ }while(sizeof(((struct export_operations *)0)->fh_to_dentry));
 885 ], [
 886         AC_MSG_RESULT([yes])
 887         AC_DEFINE(HAVE_FH_TO_DENTRY, 1,
 888                 [kernel has .fh_to_dentry member in export_operations struct])
 889 ],[
 890         AC_MSG_RESULT([no])
 891 ])
 892 ])
 893
 894 # 2.6.24 removes long aged procfs entry -> deleted member
 895 AC_DEFUN([LC_PROCFS_DELETED],
 896 [AC_MSG_CHECKING([if kernel has deleted member in procfs entry struct])
 897 LB_LINUX_TRY_COMPILE([
 898         #include <linux/proc_fs.h>
 899 ],[
 900         struct proc_dir_entry pde;
 901
 902         pde.deleted = sizeof(pde);
 903 ], [
 904         AC_MSG_RESULT([yes])
 905         AC_DEFINE(HAVE_PROCFS_DELETED, 1,
 906                 [kernel has deleted member in procfs entry struct])
 907 ],[
 908         AC_MSG_RESULT([no])
 909 ])
 910 ])
 911
 912 # 2.6.24 has bdi_init()/bdi_destroy() functions.
 913 AC_DEFUN([LC_EXPORT_BDI_INIT],
 914 [LB_CHECK_SYMBOL_EXPORT([bdi_init],
 915 [mm/backing-dev.c],[
 916         AC_DEFINE(HAVE_BDI_INIT, 1,
 917                 [bdi_init/bdi_destroy functions are present])
 918 ],[
 919 ])
 920 ])
 921
 922 # 2.6.26
 923
 924 # 2.6.26 isn't export set_fs_pwd and change paramter in fs struct
 925 AC_DEFUN([LC_FS_STRUCT_USE_PATH],
 926 [AC_MSG_CHECKING([fs_struct use path structure])
 927 LB_LINUX_TRY_COMPILE([
 928         #include <asm/atomic.h>
 929         #include <linux/spinlock.h>
 930         #include <linux/fs_struct.h>
 931 ],[
 932         struct fs_struct fs;
 933
 934         fs.pwd = *((struct path *)sizeof(fs));
 935 ], [
 936         AC_MSG_RESULT([yes])
 937         AC_DEFINE(HAVE_FS_STRUCT_USE_PATH, 1,
 938                 [fs_struct use path structure])
 939 ],[
 940         AC_MSG_RESULT([no])
 941 ])
 942 ])
 943
 944 #
 945 # 2.6.27
 946 #
 947
 948 # LC_SECURITY_PLUG  # for SLES10 SP2 (2.6.27)
 949 # check security plug in sles10 sp2 kernel
 950 AC_DEFUN([LC_SECURITY_PLUG],
 951 [AC_MSG_CHECKING([If kernel has security plug support])
 952 LB_LINUX_TRY_COMPILE([
 953         #include <linux/fs.h>
 954         #include <linux/stddef.h>
 955 ],[
 956         notify_change(NULL, NULL, NULL);
 957 ],[
 958         AC_MSG_RESULT(yes)
 959         AC_DEFINE(HAVE_SECURITY_PLUG, 1,
 960                 [SLES10 SP2 use extra parameter in vfs])
 961 ],[
 962         AC_MSG_RESULT(no)
 963 ])
 964 ])
 965
 966 AC_DEFUN([LC_PGMKWRITE_USE_VMFAULT],
 967 [AC_MSG_CHECKING([kernel .page_mkwrite uses struct vm_fault *])
 968 tmp_flags="$EXTRA_KCFLAGS"
 969 EXTRA_KCFLAGS="-Werror"
 970 LB_LINUX_TRY_COMPILE([
 971         #include <linux/mm.h>
 972 ],[
 973         ((struct vm_operations_struct *)0)->page_mkwrite((struct vm_area_struct *)0, (struct vm_fault *)0);
 974 ], [
 975         AC_MSG_RESULT([yes])
 976         AC_DEFINE(HAVE_PGMKWRITE_USE_VMFAULT, 1,
 977                 [kernel vm_operation_struct.page_mkwrite uses struct vm_fault * as second parameter])
 978 ],[
 979         AC_MSG_RESULT([no])
 980 ])
 981 EXTRA_KCFLAGS="$tmp_flags"
 982 ])
 983
 984 AC_DEFUN([LC_PGMKWRITE_COMPACT],
 985 [AC_MSG_CHECKING([if kernel .page_mkwrite is located in vm_operation_struct._pmkw])
 986 tmp_flags="$EXTRA_KCFLAGS"
 987 EXTRA_KCFLAGS="-Werror"
 988 LB_LINUX_TRY_COMPILE([
 989         #include <linux/mm.h>
 990 ],[
 991         struct vm_operations_struct *vm_ops;
 992
 993         vm_ops = NULL;
 994         vm_ops->_pmkw.page_mkwrite(NULL, NULL);
 995 ], [
 996         AC_MSG_RESULT([yes])
 997         AC_DEFINE(HAVE_PGMKWRITE_COMPACT, 1,
 998                 [kernel .page_mkwrite is located in vm_operation_struct._pmkw])
 999 ],[
1000         AC_MSG_RESULT([no])
1001 ])
1002 EXTRA_KCFLAGS="$tmp_flags"
1003 ])
1004
1005 AC_DEFUN([LC_INODE_PERMISION_2ARGS],
1006 [AC_MSG_CHECKING([inode_operations->permission has two args])
1007 LB_LINUX_TRY_COMPILE([
1008         #include <linux/fs.h>
1009 ],[
1010         struct inode *inode __attribute__ ((unused));
1011
1012         inode = NULL;
1013         inode->i_op->permission(NULL, 0);
1014 ],[
1015         AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
1016                   [inode_operations->permission has two args])
1017         AC_MSG_RESULT([yes])
1018 ],[
1019         AC_MSG_RESULT([no])
1020 ])
1021 ])
1022
1023 # 2.6.27 have new page locking API
1024 AC_DEFUN([LC_TRYLOCKPAGE],
1025 [AC_MSG_CHECKING([kernel uses trylock_page for page lock])
1026 LB_LINUX_TRY_COMPILE([
1027         #include <linux/pagemap.h>
1028 ],[
1029         trylock_page(NULL);
1030 ],[
1031         AC_DEFINE(HAVE_TRYLOCK_PAGE, 1,
1032                   [kernel uses trylock_page for page lock])
1033         AC_MSG_RESULT([yes])
1034 ],[
1035         AC_MSG_RESULT([no])
1036 ])
1037 ])
1038
1039 # 2.6.27 removed the read_inode from super_operations.
1040 AC_DEFUN([LC_READ_INODE_IN_SBOPS],
1041 [AC_MSG_CHECKING([super_operations has a read_inode field])
1042 LB_LINUX_TRY_COMPILE([
1043         #include <linux/fs.h>
1044 ],[
1045         struct super_operations *sop;
1046         sop->read_inode(NULL);
1047 ],[
1048         AC_DEFINE(HAVE_READ_INODE_IN_SBOPS, 1,
1049                 [super_operations has a read_inode])
1050         AC_MSG_RESULT([yes])
1051 ],[
1052         AC_MSG_RESULT([no])
1053 ])
1054 ])
1055
1056 # 2.6.27 has inode_permission instead of permisson
1057 AC_DEFUN([LC_EXPORT_INODE_PERMISSION],
1058 [LB_CHECK_SYMBOL_EXPORT([inode_permission],
1059 [fs/namei.c],[
1060 AC_DEFINE(HAVE_EXPORT_INODE_PERMISSION, 1,
1061             [inode_permission is exported by the kernel])
1062 ],[
1063 ])
1064 ])
1065
1066 # 2.6.27 use 5th parameter in quota_on for remount.
1067 AC_DEFUN([LC_QUOTA_ON_5ARGS],
1068 [AC_MSG_CHECKING([quota_on needs 5 parameters])
1069 LB_LINUX_TRY_COMPILE([
1070         #include <linux/fs.h>
1071         #include <linux/quota.h>
1072 ],[
1073         struct quotactl_ops *qop = NULL;
1074         qop->quota_on(NULL, 0, 0, NULL, 0);
1075 ],[
1076         AC_DEFINE(HAVE_QUOTA_ON_5ARGS, 1,
1077                 [quota_on needs 5 paramters])
1078         AC_MSG_RESULT([yes])
1079 ],[
1080         AC_MSG_RESULT([no])
1081 ])
1082 ])
1083
1084 # 2.6.27 use 3th parameter in quota_off for remount.
1085 AC_DEFUN([LC_QUOTA_OFF_3ARGS],
1086 [AC_MSG_CHECKING([quota_off needs 3 parameters])
1087 LB_LINUX_TRY_COMPILE([
1088         #include <linux/fs.h>
1089         #include <linux/quota.h>
1090 ],[
1091         struct quotactl_ops *qop = NULL;
1092         qop->quota_off(NULL, 0, 0);
1093 ],[
1094         AC_DEFINE(HAVE_QUOTA_OFF_3ARGS, 1,
1095                 [quota_off needs 3 paramters])
1096         AC_MSG_RESULT([yes])
1097 ],[
1098         AC_MSG_RESULT([no])
1099 ])
1100 ])
1101
1102 # 2.6.27 has vfs_dq_off inline function.
1103 AC_DEFUN([LC_VFS_DQ_OFF],
1104 [AC_MSG_CHECKING([vfs_dq_off is defined])
1105 LB_LINUX_TRY_COMPILE([
1106         #include <linux/quotaops.h>
1107 ],[
1108         vfs_dq_off(NULL, 0);
1109 ],[
1110         AC_DEFINE(HAVE_VFS_DQ_OFF, 1, [vfs_dq_off is defined])
1111         AC_MSG_RESULT([yes])
1112 ],[
1113         AC_MSG_RESULT([no])
1114 ])
1115 ])
1116
1117 # 2.6.34 has quotactl_ops->[sg]et_dqblk that take struct fs_disk_quota
1118 AC_DEFUN([LC_HAVE_DQUOT_FS_DISK_QUOTA],
1119 tmp_flags="$EXTRA_KCFLAGS"
1120 EXTRA_KCFLAGS="-Werror"
1121 [AC_MSG_CHECKING([if quotactl_ops.set_dqblk takes struct fs_disk_quota])
1122 LB_LINUX_TRY_COMPILE([
1123         #include <linux/fs.h>
1124         #include <linux/quota.h>
1125 ],[
1126         struct quotactl_ops qops = {};
1127         struct fs_disk_quota fdq;
1128         qops.set_dqblk(NULL, 0, 0, &fdq);
1129 ],[
1130         AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1, [quotactl_ops.set_dqblk takes struct fs_disk_quota])
1131         AC_MSG_RESULT([yes])
1132 ],[
1133         AC_MSG_RESULT([no])
1134 ])
1135 EXTRA_KCFLAGS="$tmp_flags"
1136 ])
1137
1138 # 2.6.34 has renamed dquot options to dquot_*, check for dquot_suspend
1139 AC_DEFUN([LC_HAVE_DQUOT_SUSPEND],
1140 [AC_MSG_CHECKING([if dquot_suspend is defined])
1141 LB_LINUX_TRY_COMPILE([
1142         #include <linux/quotaops.h>
1143 ],[
1144         dquot_suspend(NULL, -1);
1145 ],[
1146         AC_DEFINE(HAVE_DQUOT_SUSPEND, 1, [dquot_suspend is defined])
1147         AC_MSG_RESULT([yes])
1148 ],[
1149         AC_MSG_RESULT([no])
1150 ])
1151 ])
1152
1153 # LC_LOCK_MAP_ACQUIRE
1154 # after 2.6.27 lock_map_acquire replaces lock_acquire
1155 AC_DEFUN([LC_LOCK_MAP_ACQUIRE],
1156 [AC_MSG_CHECKING([if lock_map_acquire is defined])
1157 LB_LINUX_TRY_COMPILE([
1158         #include <linux/lockdep.h>
1159 ],[
1160         lock_map_acquire(NULL);
1161 ],[
1162         AC_MSG_RESULT(yes)
1163         AC_DEFINE(HAVE_LOCK_MAP_ACQUIRE, 1,
1164                 [lock_map_acquire is defined])
1165 ],[
1166         AC_MSG_RESULT(no)
1167 ])
1168 ])
1169
1170 # 2.6.27.15-2 sles11
1171
1172 # 2.6.27 sles11 remove the bi_hw_segments
1173 AC_DEFUN([LC_BI_HW_SEGMENTS],
1174 [AC_MSG_CHECKING([struct bio has a bi_hw_segments field])
1175 LB_LINUX_TRY_COMPILE([
1176         #include <linux/bio.h>
1177 ],[
1178         struct bio io;
1179         io.bi_hw_segments = sizeof(io);
1180 ],[
1181         AC_DEFINE(HAVE_BI_HW_SEGMENTS, 1,
1182                 [struct bio has a bi_hw_segments field])
1183         AC_MSG_RESULT([yes])
1184 ],[
1185         AC_MSG_RESULT([no])
1186 ])
1187 ])
1188
1189 #
1190 # 2.6.27 sles11 move the quotaio_v1{2}.h from include/linux to fs
1191 # 2.6.32 move the quotaio_v1{2}.h from fs to fs/quota
1192 AC_DEFUN([LC_HAVE_QUOTAIO_H],
1193 [LB_CHECK_FILE([$LINUX/include/linux/quotaio_v2.h],[
1194         AC_DEFINE(HAVE_QUOTAIO_H, 1,
1195                 [kernel has include/linux/quotaio_v2.h])
1196 ],[LB_CHECK_FILE([$LINUX/fs/quotaio_v2.h],[
1197                AC_DEFINE(HAVE_FS_QUOTAIO_H, 1,
1198                 [kernel has fs/quotaio_v1.h])
1199 ],[LB_CHECK_FILE([$LINUX/fs/quota/quotaio_v2.h],[
1200                AC_DEFINE(HAVE_FS_QUOTA_QUOTAIO_H, 1,
1201                 [kernel has fs/quota/quotaio_v2.h])
1202 ],[
1203         AC_MSG_RESULT([no])
1204 ])
1205 ])
1206 ])
1207 ])
1208
1209 # 2.6.27 sles11 has sb_any_quota_active
1210 AC_DEFUN([LC_SB_ANY_QUOTA_ACTIVE],
1211 [AC_MSG_CHECKING([Kernel has sb_any_quota_active])
1212 LB_LINUX_TRY_COMPILE([
1213         #include <linux/quotaops.h>
1214 ],[
1215         sb_any_quota_active(NULL);
1216 ],[
1217         AC_DEFINE(HAVE_SB_ANY_QUOTA_ACTIVE, 1,
1218                 [Kernel has a sb_any_quota_active])
1219         AC_MSG_RESULT([yes])
1220 ],[
1221         AC_MSG_RESULT([no])
1222 ])
1223 ])
1224
1225 # 2.6.27 sles11 has sb_has_quota_active
1226 AC_DEFUN([LC_SB_HAS_QUOTA_ACTIVE],
1227 [AC_MSG_CHECKING([Kernel has sb_has_quota_active])
1228 LB_LINUX_TRY_COMPILE([
1229         #include <linux/quotaops.h>
1230 ],[
1231         sb_has_quota_active(NULL, 0);
1232 ],[
1233         AC_DEFINE(HAVE_SB_HAS_QUOTA_ACTIVE, 1,
1234                 [Kernel has a sb_has_quota_active])
1235         AC_MSG_RESULT([yes])
1236 ],[
1237         AC_MSG_RESULT([no])
1238 ])
1239 ])
1240
1241 # 2.6.27 exported add_to_page_cache_lru.
1242 AC_DEFUN([LC_EXPORT_ADD_TO_PAGE_CACHE_LRU],
1243 [LB_CHECK_SYMBOL_EXPORT([add_to_page_cache_lru],
1244 [mm/filemap.c],[
1245         AC_DEFINE(HAVE_ADD_TO_PAGE_CACHE_LRU, 1,
1246                 [add_to_page_cache_lru functions are present])
1247 ],[
1248 ])
1249 ])
1250
1251 #
1252 # 2.6.29 introduce sb_any_quota_loaded.
1253 #
1254 AC_DEFUN([LC_SB_ANY_QUOTA_LOADED],
1255 [AC_MSG_CHECKING([Kernel has sb_any_quota_loaded])
1256 LB_LINUX_TRY_COMPILE([
1257         #include <linux/quotaops.h>
1258 ],[
1259         sb_any_quota_loaded(NULL);
1260 ],[
1261         AC_DEFINE(HAVE_SB_ANY_QUOTA_LOADED, 1,
1262                 [Kernel has a sb_any_quota_loaded])
1263         AC_MSG_RESULT([yes])
1264 ],[
1265         AC_MSG_RESULT([no])
1266 ])
1267 ])
1268
1269 # 2.6.30 x86 node_to_cpumask has been removed. must use cpumask_of_node
1270 AC_DEFUN([LC_EXPORT_CPUMASK_OF_NODE],
1271          [LB_CHECK_SYMBOL_EXPORT([node_to_cpumask_map],
1272                                  [arch/$LINUX_ARCH/mm/numa.c],
1273                                  [AC_DEFINE(HAVE_CPUMASK_OF_NODE, 1,
1274                                             [node_to_cpumask_map is exported by
1275                                              the kernel])]) # x86_64
1276          ])
1277
1278
1279 # 2.6.31 replaces blk_queue_hardsect_size by blk_queue_logical_block_size function
1280 AC_DEFUN([LC_BLK_QUEUE_LOG_BLK_SIZE],
1281 [AC_MSG_CHECKING([if blk_queue_logical_block_size is defined])
1282 LB_LINUX_TRY_COMPILE([
1283         #include <linux/blkdev.h>
1284 ],[
1285         blk_queue_logical_block_size(NULL, 0);
1286 ],[
1287         AC_MSG_RESULT(yes)
1288         AC_DEFINE(HAVE_BLK_QUEUE_LOG_BLK_SIZE, 1,
1289                   [blk_queue_logical_block_size is defined])
1290 ],[
1291         AC_MSG_RESULT(no)
1292 ])
1293 ])
1294
1295 # 2.6.32
1296
1297 # 2.6.32 introduced inode_newsize_ok
1298 AC_DEFUN([LC_VFS_INODE_NEWSIZE_OK],
1299 [AC_MSG_CHECKING([if inode_newsize_ok is defined])
1300 LB_LINUX_TRY_COMPILE([
1301         #include <linux/fs.h>
1302 ],[
1303         return inode_newsize_ok(NULL, 0);
1304 ],[
1305         AC_MSG_RESULT(yes)
1306         AC_DEFINE(HAVE_VFS_INODE_NEWSIZE_OK, 1,
1307                   [inode_newsize_ok is defined])
1308 ],[
1309         AC_MSG_RESULT(no)
1310 ])
1311 ])
1312
1313 # 2.6.32 changes cache_detail's member cache_request to cache_upcall
1314 # in kernel commit bc74b4f5e63a09fb78e245794a0de1e5a2716bbe
1315 AC_DEFUN([LC_CACHE_UPCALL],
1316 [AC_MSG_CHECKING([if cache_detail has cache_upcall field])
1317         LB_LINUX_TRY_COMPILE([
1318                 #include <linux/sunrpc/cache.h>
1319         ],[
1320                 struct cache_detail cd;
1321                 cd.cache_upcall = NULL;
1322         ],[
1323                 AC_MSG_RESULT(yes)
1324                 AC_DEFINE(HAVE_CACHE_UPCALL, 1,
1325                           [cache_detail has cache_upcall field])
1326         ],[
1327                 AC_MSG_RESULT(no)
1328         ])
1329 ])
1330
1331 # 2.6.32 add a limits member in struct request_queue.
1332 AC_DEFUN([LC_REQUEST_QUEUE_LIMITS],
1333 [AC_MSG_CHECKING([if request_queue has a limits field])
1334 LB_LINUX_TRY_COMPILE([
1335         #include <linux/blkdev.h>
1336 ],[
1337         struct request_queue rq;
1338         rq.limits.io_min = 0;
1339 ],[
1340         AC_MSG_RESULT(yes)
1341         AC_DEFINE(HAVE_REQUEST_QUEUE_LIMITS, 1,
1342                   [request_queue has a limits field])
1343 ],[
1344         AC_MSG_RESULT(no)
1345 ])
1346 ])
1347
1348 # 2.6.32 has bdi_register() functions.
1349 AC_DEFUN([LC_EXPORT_BDI_REGISTER],
1350 [LB_CHECK_SYMBOL_EXPORT([bdi_register],
1351 [mm/backing-dev.c],[
1352         AC_DEFINE(HAVE_BDI_REGISTER, 1,
1353                 [bdi_register function is present])
1354 ],[
1355 ])
1356 ])
1357
1358 # 2.6.32 add s_bdi for super block
1359 AC_DEFUN([LC_SB_BDI],
1360 [AC_MSG_CHECKING([if super_block has s_bdi field])
1361 LB_LINUX_TRY_COMPILE([
1362         #include <linux/fs.h>
1363 ],[
1364         struct super_block sb;
1365         sb.s_bdi = NULL;
1366 ],[
1367         AC_MSG_RESULT(yes)
1368         AC_DEFINE(HAVE_SB_BDI, 1,
1369                   [super_block has s_bdi field])
1370 ],[
1371         AC_MSG_RESULT(no)
1372 ])
1373 ])
1374
1375 #  2.6.27.15-2 SuSE 11 sp0 kernels lack the name field for BDI
1376 AC_DEFUN([LC_BDI_NAME],
1377 [AC_MSG_CHECKING([if backing_device_info has name field])
1378 LB_LINUX_TRY_COMPILE([
1379         #include <linux/blkdev.h>
1380 ],[
1381         struct backing_dev_info bdi;
1382         bdi.name = NULL;
1383 ],[
1384         AC_MSG_RESULT(yes)
1385         AC_DEFINE(HAVE_BDI_NAME, 1,
1386                   [backing_device_info has name field])
1387 ],[
1388         AC_MSG_RESULT(no)
1389 ])
1390 ])
1391
1392 # 2.6.32 removes blk_queue_max_sectors and add blk_queue_max_hw_sectors
1393 # check blk_queue_max_sectors and use it until disappear.
1394 AC_DEFUN([LC_BLK_QUEUE_MAX_SECTORS],
1395 [AC_MSG_CHECKING([if blk_queue_max_sectors is defined])
1396 LB_LINUX_TRY_COMPILE([
1397         #include <linux/blkdev.h>
1398 ],[
1399         blk_queue_max_sectors(NULL, 0);
1400 ],[
1401         AC_MSG_RESULT(yes)
1402         AC_DEFINE(HAVE_BLK_QUEUE_MAX_SECTORS, 1,
1403                   [blk_queue_max_sectors is defined])
1404 ],[
1405         AC_MSG_RESULT(no)
1406 ])
1407 ])
1408
1409 # 2.6.32 replaces 2 functions blk_queue_max_phys_segments and blk_queue_max_hw_segments by blk_queue_max_segments
1410 AC_DEFUN([LC_BLK_QUEUE_MAX_SEGMENTS],
1411 [AC_MSG_CHECKING([if blk_queue_max_segments is defined])
1412 LB_LINUX_TRY_COMPILE([
1413         #include <linux/blkdev.h>
1414 ],[
1415         blk_queue_max_segments(NULL, 0);
1416 ],[
1417         AC_MSG_RESULT(yes)
1418         AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
1419                   [blk_queue_max_segments is defined])
1420 ],[
1421         AC_MSG_RESULT(no)
1422 ])
1423 ])
1424
1425 #
1426 # LC_QUOTA64
1427 #
1428 # Check if kernel has been patched for 64-bit quota limits support.
1429 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
1430 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
1431 # that in the absence of quotaio_v1.h in the kernel headers.
1432 #
1433 AC_DEFUN([LC_QUOTA64],[
1434         AC_MSG_CHECKING([if kernel has 64-bit quota limits support])
1435 tmp_flags="$EXTRA_KCFLAGS"
1436 EXTRA_KCFLAGS="-I$LINUX/fs"
1437         LB_LINUX_TRY_COMPILE([
1438                 #include <linux/kernel.h>
1439                 #include <linux/fs.h>
1440                 #ifdef HAVE_QUOTAIO_H
1441                 # include <linux/quotaio_v2.h>
1442                 int versions[] = V2_INITQVERSIONS_R1;
1443                 struct v2_disk_dqblk_r1 dqblk_r1;
1444                 #elif defined(HAVE_FS_QUOTA_QUOTAIO_H)
1445                 # include <quota/quotaio_v2.h>
1446                 struct v2r1_disk_dqblk dqblk_r1;
1447                 #elif defined(HAVE_FS_QUOTAIO_H)
1448                 # include <quotaio_v2.h>
1449                 struct v2r1_disk_dqblk dqblk_r1;
1450                 #else
1451                 #include <linux/quota.h>
1452                 int ver = QFMT_VFS_V1;
1453                 #endif
1454         ],[],[
1455                 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
1456                 AC_MSG_RESULT([yes])
1457         ],[
1458                 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
1459                         AC_MSG_ERROR([You have got no 64-bit kernel quota support.])
1460                 ],[])
1461                 AC_MSG_RESULT([no])
1462         ])
1463 EXTRA_KCFLAGS=$tmp_flags
1464 ])
1465
1466 # 2.6.32 set_cpus_allowed is no more defined if CONFIG_CPUMASK_OFFSTACK=yes
1467 AC_DEFUN([LC_SET_CPUS_ALLOWED],
1468          [AC_MSG_CHECKING([if kernel defines set_cpus_allowed])
1469           LB_LINUX_TRY_COMPILE(
1470                 [#include <linux/sched.h>],
1471                 [struct task_struct *p = NULL;
1472                  cpumask_t mask = { { 0 } };
1473                  (void) set_cpus_allowed(p, mask);],
1474                 [AC_MSG_RESULT([yes])
1475                  AC_DEFINE(HAVE_SET_CPUS_ALLOWED, 1,
1476                            [set_cpus_allowed is exported by the kernel])],
1477                 [AC_MSG_RESULT([no])] )])
1478
1479 # 2.6.32 introduces selinux_is_enabled()
1480 AC_DEFUN([LC_SELINUX_IS_ENABLED],
1481 [AC_MSG_CHECKING([if selinux_is_enabled is available])
1482 LB_LINUX_TRY_COMPILE([
1483         #include <linux/selinux.h>
1484 ],[
1485         selinux_is_enabled();
1486 ],[
1487         AC_MSG_RESULT([yes])
1488         AC_DEFINE(HAVE_SELINUX_IS_ENABLED, 1,
1489                 [selinux_is_enabled is defined])
1490 ],[
1491         AC_MSG_RESULT([no])
1492 ])
1493 ])
1494
1495 #
1496 # LC_D_OBTAIN_ALIAS
1497 # starting from 2.6.28 kernel replaces d_alloc_anon() with
1498 # d_obtain_alias() for getting anonymous dentries
1499 # RHEL5(2.6.18) has d_obtain_alias but SLES11SP0(2.6.27) not
1500 #
1501 AC_DEFUN([LC_D_OBTAIN_ALIAS],
1502 [AC_MSG_CHECKING([d_obtain_alias exist in kernel])
1503 LB_LINUX_TRY_COMPILE([
1504         #include <linux/dcache.h>
1505 ],[
1506         d_obtain_alias(NULL);
1507 ],[
1508         AC_DEFINE(HAVE_D_OBTAIN_ALIAS, 1,
1509                 [d_obtain_alias exist in kernel])
1510         AC_MSG_RESULT([yes])
1511 ],[
1512         AC_MSG_RESULT([no])
1513 ])
1514 ])
1515
1516 #
1517 # LC_EXPORT_GENERIC_ERROR_REMOVE_PAGE
1518 #
1519 AC_DEFUN([LC_EXPORT_GENERIC_ERROR_REMOVE_PAGE],
1520          [LB_CHECK_SYMBOL_EXPORT(
1521                         [generic_error_remove_page],
1522                         [mm/truncate.c],
1523                         [AC_DEFINE(HAS_GENERIC_ERROR_REMOVE_PAGE, 1,
1524                                 [kernel export generic_error_remove_page])],
1525                         [])
1526          ]
1527 )
1528
1529 # 2.6.32 if kernel export access_process_vm().
1530 AC_DEFUN([LC_EXPORT_ACCESS_PROCESS_VM],
1531         [LB_CHECK_SYMBOL_EXPORT([access_process_vm],
1532                         [mm/memory.c],
1533                         [AC_DEFINE(HAVE_ACCESS_PROCESS_VM, 1,
1534                                 [access_process_vm function is present])],
1535                         [])
1536         ]
1537 )
1538
1539 #
1540 # 2.6.36 fs_struct.lock use spinlock instead of rwlock.
1541 #
1542 AC_DEFUN([LC_FS_STRUCT_RWLOCK],
1543 [AC_MSG_CHECKING([if fs_struct.lock use rwlock])
1544 LB_LINUX_TRY_COMPILE([
1545         #include <asm/atomic.h>
1546         #include <linux/spinlock.h>
1547         #include <linux/fs_struct.h>
1548 ],[
1549         ((struct fs_struct *)0)->lock = (rwlock_t){ 0 };
1550 ],[
1551         AC_DEFINE(HAVE_FS_STRUCT_RWLOCK, 1,
1552                   [fs_struct.lock use rwlock])
1553         AC_MSG_RESULT([yes])
1554 ],[
1555         AC_MSG_RESULT([no])
1556 ])
1557 ])
1558
1559 #
1560 # 2.6.36 super_operations add evict_inode method. it hybird of
1561 # delete_inode & clear_inode.
1562 #
1563 AC_DEFUN([LC_SBOPS_EVICT_INODE],
1564 [AC_MSG_CHECKING([if super_operations.evict_inode exist])
1565 LB_LINUX_TRY_COMPILE([
1566         #include <linux/fs.h>
1567 ],[
1568         ((struct super_operations *)0)->evict_inode(NULL);
1569 ],[
1570         AC_DEFINE(HAVE_SBOPS_EVICT_INODE, 1,
1571                 [super_operations.evict_inode() is exist in kernel])
1572         AC_MSG_RESULT([yes])
1573 ],[
1574         AC_MSG_RESULT([no])
1575 ])
1576 ])
1577
1578 #
1579 # 2.6.35 file_operations.fsync taken 2 arguments.
1580 # 3.0.0 file_operations.fsync takes 4 arguments.
1581 #
1582 AC_DEFUN([LC_FILE_FSYNC],
1583 [AC_MSG_CHECKING([if file_operations.fsync takes 4 or 2 arguments])
1584 LB_LINUX_TRY_COMPILE([
1585         #include <linux/fs.h>
1586 ],[
1587         ((struct file_operations *)0)->fsync(NULL, 0, 0, 0);
1588 ],[
1589         AC_DEFINE(HAVE_FILE_FSYNC_4ARGS, 1,
1590                 [file_operations.fsync takes 4 arguments])
1591         AC_MSG_RESULT([yes, 4 args])
1592 ],[
1593         LB_LINUX_TRY_COMPILE([
1594                 #include <linux/fs.h>
1595         ],[
1596            ((struct file_operations *)0)->fsync(NULL, 0);
1597         ],[
1598                 AC_DEFINE(HAVE_FILE_FSYNC_2ARGS, 1,
1599                         [file_operations.fsync takes 2 arguments])
1600                 AC_MSG_RESULT([yes, 2 args])
1601         ],[
1602                 AC_MSG_RESULT([no])
1603         ])
1604 ])
1605 ])
1606
1607 #
1608 # 2.6.37 remove kernel_locked
1609 #
1610 AC_DEFUN([LC_KERNEL_LOCKED],
1611 [AC_MSG_CHECKING([if kernel_locked is defined])
1612 LB_LINUX_TRY_COMPILE([
1613         #include <linux/smp_lock.h>
1614 ],[
1615         kernel_locked();
1616 ],[
1617         AC_MSG_RESULT([yes])
1618         AC_DEFINE(HAVE_KERNEL_LOCKED, 1,
1619                 [kernel_locked is defined])
1620 ],[
1621         AC_MSG_RESULT([no])
1622 ])
1623 ])
1624
1625 #
1626 # 2.6.38 dentry_operations.d_compare() taken 7 arguments.
1627 #
1628 AC_DEFUN([LC_D_COMPARE_7ARGS],
1629 [AC_MSG_CHECKING([if d_compare taken 7 arguments])
1630 LB_LINUX_TRY_COMPILE([
1631         #include <linux/dcache.h>
1632 ],[
1633         ((struct dentry_operations*)0)->d_compare(NULL,NULL,NULL,NULL,0,NULL,NULL);
1634 ],[
1635         AC_DEFINE(HAVE_D_COMPARE_7ARGS, 1,
1636                 [d_compare need 7 arguments])
1637         AC_MSG_RESULT([yes])
1638 ],[
1639         AC_MSG_RESULT([no])
1640 ])
1641 ])
1642
1643 #
1644 # 2.6.38 dentry_operations.d_delete() defined 'const' for 1st parameter.
1645 #
1646 AC_DEFUN([LC_D_DELETE_CONST],
1647 [AC_MSG_CHECKING([if d_delete has const declare on first parameter])
1648 tmp_flags="$EXTRA_KCFLAGS"
1649 EXTRA_KCFLAGS="-Werror"
1650 LB_LINUX_TRY_COMPILE([
1651         #include <linux/dcache.h>
1652 ],[
1653         const struct dentry *d = NULL;
1654         ((struct dentry_operations*)0)->d_delete(d);
1655 ],[
1656         AC_DEFINE(HAVE_D_DELETE_CONST, const,
1657                 [d_delete first parameter declared const])
1658         AC_MSG_RESULT([yes])
1659 ],[
1660         AC_DEFINE(HAVE_D_DELETE_CONST, , [])
1661         AC_MSG_RESULT([no])
1662 ])
1663 EXTRA_KCFLAGS="$tmp_flags"
1664 ])
1665
1666 #
1667 # 2.6.38 dcache_lock removed. rcu-walk commited.
1668 #
1669 AC_DEFUN([LC_DCACHE_LOCK],
1670 [AC_MSG_CHECKING([if dcache_lock is exist])
1671 LB_LINUX_TRY_COMPILE([
1672         #include <linux/dcache.h>
1673 ],[
1674         spin_lock(&dcache_lock);
1675 ],[
1676         AC_DEFINE(HAVE_DCACHE_LOCK, 1,
1677                 [dcache_lock is exist])
1678         AC_MSG_RESULT([yes])
1679 ],[
1680         AC_MSG_RESULT([no])
1681 ])
1682 ])
1683
1684 #
1685 # 2.6.38 export blkdev_get_by_dev
1686 #
1687 AC_DEFUN([LC_BLKDEV_GET_BY_DEV],
1688 [LB_CHECK_SYMBOL_EXPORT([blkdev_get_by_dev],
1689 [fs/block_dev.c],[
1690 AC_DEFINE(HAVE_BLKDEV_GET_BY_DEV, 1,
1691             [blkdev_get_by_dev is exported by the kernel])
1692 ],[
1693 ])
1694 ])
1695
1696 #
1697 # 2.6.38 use path as 4th parameter in quota_on.
1698 #
1699 AC_DEFUN([LC_QUOTA_ON_USE_PATH],
1700 [AC_MSG_CHECKING([quota_on use path as parameter])
1701 tmp_flags="$EXTRA_KCFLAGS"
1702 EXTRA_KCFLAGS="-Werror"
1703 LB_LINUX_TRY_COMPILE([
1704         #include <linux/fs.h>
1705         #include <linux/quota.h>
1706 ],[
1707         ((struct quotactl_ops *)0)->quota_on(NULL, 0, 0, ((struct path*)0));
1708 ],[
1709         AC_DEFINE(HAVE_QUOTA_ON_USE_PATH, 1,
1710                 [quota_on use path as 4th paramter])
1711         AC_MSG_RESULT([yes])
1712 ],[
1713         AC_MSG_RESULT([no])
1714 ])
1715 EXTRA_KCFLAGS="$tmp_flags"
1716 ])
1717
1718 #
1719 # 2.6.38 export simple_setattr
1720 #
1721 AC_DEFUN([LC_EXPORT_SIMPLE_SETATTR],
1722 [LB_CHECK_SYMBOL_EXPORT([simple_setattr],
1723 [fs/libfs.c],[
1724 AC_DEFINE(HAVE_SIMPLE_SETATTR, 1,
1725             [simple_setattr is exported by the kernel])
1726 ],[
1727 ])
1728 ])
1729
1730 #
1731 # 2.6.39 remove unplug_fn from request_queue.
1732 #
1733 AC_DEFUN([LC_REQUEST_QUEUE_UNPLUG_FN],
1734 [AC_MSG_CHECKING([if request_queue has unplug_fn field])
1735 LB_LINUX_TRY_COMPILE([
1736         #include <linux/blkdev.h>
1737 ],[
1738         do{ }while(sizeof(((struct request_queue *)0)->unplug_fn));
1739 ],[
1740         AC_DEFINE(HAVE_REQUEST_QUEUE_UNPLUG_FN, 1,
1741                   [request_queue has unplug_fn field])
1742         AC_MSG_RESULT([yes])
1743 ],[
1744         AC_MSG_RESULT([no])
1745 ])
1746 ])
1747
1748 #
1749 # 2.6.39 replace get_sb with mount in struct file_system_type
1750 #
1751 AC_DEFUN([LC_HAVE_FSTYPE_MOUNT],
1752 [AC_MSG_CHECKING([if file_system_type has mount field])
1753 LB_LINUX_TRY_COMPILE([
1754         #include <linux/fs.h>
1755 ],[
1756         struct file_system_type fst;
1757         void *i = (void *) fst.mount;
1758 ],[
1759         AC_DEFINE(HAVE_FSTYPE_MOUNT, 1,
1760                 [struct file_system_type has mount field])
1761         AC_MSG_RESULT([yes])
1762 ],[
1763         AC_MSG_RESULT([no])
1764 ])
1765 ])
1766
1767 #
1768 # 3.0 dirty_inode() has a flag parameter
1769 # see kernel commit aa38572954ade525817fe88c54faebf85e5a61c0
1770 #
1771 AC_DEFUN([LC_DIRTY_INODE_WITH_FLAG],
1772 [AC_MSG_CHECKING([if dirty_inode super_operation takes flag])
1773 LB_LINUX_TRY_COMPILE([
1774         #include <linux/fs.h>
1775 ],[
1776         struct inode *inode;
1777         inode->i_sb->s_op->dirty_inode(NULL, 0);
1778 ],[
1779         AC_DEFINE(HAVE_DIRTY_INODE_HAS_FLAG, 1,
1780                   [dirty_inode super_operation takes flag])
1781         AC_MSG_RESULT([yes])
1782 ],[
1783         AC_MSG_RESULT([no])
1784 ])
1785 ])
1786
1787 #
1788 # 2.6.38 generic_permission taken 4 parameters.
1789 # in fact, it means rcu-walk aware permission bring.
1790 #
1791 # 3.1 generic_permission taken 2 parameters.
1792 # see kernel commit 2830ba7f34ebb27c4e5b8b6ef408cd6d74860890
1793 #
1794 AC_DEFUN([LC_GENERIC_PERMISSION],
1795 [AC_MSG_CHECKING([if generic_permission take 2 or 4 arguments])
1796 LB_LINUX_TRY_COMPILE([
1797         #include <linux/fs.h>
1798 ],[
1799         generic_permission(NULL, 0);
1800 ],[
1801         AC_DEFINE(HAVE_GENERIC_PERMISSION_2ARGS, 1,
1802                   [generic_permission taken 2 arguments])
1803         AC_MSG_RESULT([yes, 2 args])
1804 ],[
1805         LB_LINUX_TRY_COMPILE([
1806                 #include <linux/fs.h>
1807         ],[
1808                 generic_permission(NULL, 0, 0, NULL);
1809         ],[
1810                 AC_DEFINE(HAVE_GENERIC_PERMISSION_4ARGS, 1,
1811                           [generic_permission taken 4 arguments])
1812                 AC_MSG_RESULT([yes, 4 args])
1813         ],[
1814                 AC_MSG_RESULT([no])
1815         ])
1816 ])
1817 ])
1818
1819 #
1820 # 3.1 renames lock-manager ops(lock_manager_operations) from fl_xxx to lm_xxx
1821 # see kernel commit 8fb47a4fbf858a164e973b8ea8ef5e83e61f2e50
1822 #
1823 AC_DEFUN([LC_LM_XXX_LOCK_MANAGER_OPS],
1824 [AC_MSG_CHECKING([if lock-manager ops renamed to lm_xxx])
1825 LB_LINUX_TRY_COMPILE([
1826         #include <linux/fs.h>
1827 ],[
1828         struct lock_manager_operations lm_ops;
1829         lm_ops.lm_compare_owner = NULL;
1830 ],[
1831         AC_DEFINE(HAVE_LM_XXX_LOCK_MANAGER_OPS, 1,
1832                   [lock-manager ops renamed to lm_xxx])
1833         AC_MSG_RESULT([yes])
1834 ],[
1835         AC_MSG_RESULT([no])
1836 ])
1837 ])
1838
1839 #
1840 # 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait/
1841 #     inode_dio_done instead.
1842 # see kernel commit bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3
1843 #
1844 AC_DEFUN([LC_INODE_DIO_WAIT],
1845 [AC_MSG_CHECKING([if inode->i_alloc_sem is killed and use inode_dio_wait/done.])
1846 LB_LINUX_TRY_COMPILE([
1847         #include <linux/fs.h>
1848 ],[
1849         inode_dio_wait((struct inode *)0);
1850         inode_dio_done((struct inode *)0);
1851 ],[
1852         AC_DEFINE(HAVE_INODE_DIO_WAIT, 1,
1853                   [inode->i_alloc_sem is killed and use inode_dio_wait/done])
1854         AC_MSG_RESULT([yes])
1855 ],[
1856         AC_MSG_RESULT([no])
1857 ])
1858 ])
1859
1860 #
1861 # 3.1 adds get_acl method to inode_operations to read ACL from disk.
1862 # see kernel commit 4e34e719e457f2e031297175410fc0bd4016a085
1863 #
1864 AC_DEFUN([LC_IOP_GET_ACL],
1865 [AC_MSG_CHECKING([inode_operations has .get_acl member function])
1866 LB_LINUX_TRY_COMPILE([
1867         #include <linux/fs.h>
1868 ],[
1869         struct inode_operations iop;
1870         iop.get_acl = NULL;
1871 ],[
1872         AC_DEFINE(HAVE_IOP_GET_ACL, 1,
1873                   [inode_operations has .get_acl member function])
1874         AC_MSG_RESULT([yes])
1875 ],[
1876         AC_MSG_RESULT([no])
1877 ])
1878 ])
1879
1880 #
1881 # 3.1.1 has ext4_blocks_for_truncate
1882 #
1883 AC_DEFUN([LC_BLOCKS_FOR_TRUNCATE],
1884 [AC_MSG_CHECKING([if kernel has ext4_blocks_for_truncate])
1885 LB_LINUX_TRY_COMPILE([
1886         #include <linux/fs.h>
1887         #include "$LINUX/fs/ext4/ext4_jbd2.h"
1888         #include "$LINUX/fs/ext4/truncate.h"
1889 ],[
1890         ext4_blocks_for_truncate(NULL);
1891 ],[
1892         AC_MSG_RESULT([yes])
1893         AC_DEFINE(HAVE_BLOCKS_FOR_TRUNCATE, 1,
1894                   [kernel has ext4_blocks_for_truncate])
1895 ],[
1896         AC_MSG_RESULT([no])
1897 ])
1898 ])
1899
1900 #
1901 # 3.1 introduced generic_file_llseek_size()
1902 #
1903 AC_DEFUN([LC_FILE_LLSEEK_SIZE],
1904         [LB_CHECK_SYMBOL_EXPORT([generic_file_llseek_size],
1905         [fs/read_write.c],
1906         [AC_DEFINE(HAVE_FILE_LLSEEK_SIZE, 1,
1907                    [generic_file_llseek_size is exported by the kernel])])
1908 ])
1909
1910 #
1911 # 3.2 request_queue.make_request_fn defined as function returns with void
1912 # see kernel commit 5a7bbad27a410350e64a2d7f5ec18fc73836c14f
1913 #
1914 AC_DEFUN([LC_HAVE_VOID_MAKE_REQUEST_FN],
1915 [AC_MSG_CHECKING([if request_queue.make_request_fn returns void but not int])
1916 LB_LINUX_TRY_COMPILE([
1917         #include <linux/blkdev.h>
1918 ],[
1919         int ret;
1920         make_request_fn         *mrf;
1921         ret = mrf(NULL, NULL);
1922 ],[
1923         AC_MSG_RESULT([no])
1924 ],[
1925         AC_DEFINE(HAVE_VOID_MAKE_REQUEST_FN, 1,
1926                   [request_queue.make_request_fn returns void but not int])
1927         AC_MSG_RESULT([yes])
1928 ])
1929 ])
1930
1931 #
1932 # 3.2 protects inode->i_nlink from direct modification
1933 # see kernel commit a78ef704a8dd430225955f0709b22d4a6ba21deb
1934 # at the same time adds set_nlink(), so checks set_nlink() for it.
1935 #
1936 AC_DEFUN([LC_HAVE_PROTECT_I_NLINK],
1937 [AC_MSG_CHECKING([if inode->i_nlink is protected from direct modification])
1938 LB_LINUX_TRY_COMPILE([
1939         #include <linux/fs.h>
1940 ],[
1941         struct inode i;
1942         set_nlink(&i, 1);
1943 ],[
1944         AC_DEFINE(HAVE_PROTECT_I_NLINK, 1,
1945                   [inode->i_nlink is protected from direct modification])
1946         AC_MSG_RESULT([yes])
1947 ],[
1948         AC_MSG_RESULT([no])
1949 ])
1950 ])
1951
1952 #
1953 # 3.3 introduces migrate_mode.h and migratepage has 4 args
1954 #
1955 AC_DEFUN([LC_HAVE_MIGRATE_HEADER],
1956 [LB_CHECK_FILE([$LINUX/include/linux/migrate.h],[
1957                 AC_DEFINE(HAVE_MIGRATE_H, 1,
1958                 [kernel has include/linux/migrate.h])
1959 ],[LB_CHECK_FILE([$LINUX/include/linux/migrate_mode.h],[
1960                 AC_DEFINE(HAVE_MIGRATE_MODE_H, 1,
1961                         [kernel has include/linux/migrate_mode.h])
1962 ],[
1963         AC_MSG_RESULT([no])
1964 ])
1965 ])
1966 ])
1967
1968 AC_DEFUN([LC_MIGRATEPAGE_4ARGS],
1969 [AC_MSG_CHECKING([if address_space_operations.migratepage has 4 args])
1970 LB_LINUX_TRY_COMPILE([
1971         #include <linux/fs.h>
1972 #ifdef HAVE_MIGRATE_H
1973         #include <linux/migrate.h>
1974 #elif defined(HAVE_MIGRATE_MODE_H)
1975         #include <linux/migrate_mode.h>
1976 #endif
1977 ],[
1978         struct address_space_operations aops;
1979
1980         aops.migratepage(NULL, NULL, NULL, MIGRATE_ASYNC);
1981 ],[
1982         AC_DEFINE(HAVE_MIGRATEPAGE_4ARGS, 1,
1983                 [address_space_operations.migratepage has 4 args])
1984         AC_MSG_RESULT([yes])
1985 ],[
1986         AC_MSG_RESULT([no])
1987 ])
1988 ])
1989
1990 #
1991 # 3.3 switchs super_operations to use dentry as parameter (but not vfsmount)
1992 # see kernel commit 34c80b1d93e6e20ca9dea0baf583a5b5510d92d4
1993 #
1994 AC_DEFUN([LC_SUPEROPS_USE_DENTRY],
1995 [AC_MSG_CHECKING([if super_operations use dentry as parameter])
1996 tmp_flags="$EXTRA_KCFLAGS"
1997 EXTRA_KCFLAGS="-Werror"
1998 LB_LINUX_TRY_COMPILE([
1999         #include <linux/fs.h>
2000         int show_options(struct seq_file *seq, struct dentry *root){
2001                 return 0;
2002         }
2003 ],[
2004         struct super_operations ops;
2005         ops.show_options = show_options;
2006 ],[
2007         AC_DEFINE(HAVE_SUPEROPS_USE_DENTRY, 1,
2008                   [super_operations use dentry as parameter])
2009         AC_MSG_RESULT([yes])
2010 ],[
2011         AC_MSG_RESULT([no])
2012 ])
2013 EXTRA_KCFLAGS="$tmp_flags"
2014 ])
2015
2016 #
2017 # 3.3 switchs inode_operations to use umode_t as parameter (but not int)
2018 # see kernel commit 1a67aafb5f72a436ca044293309fa7e6351d6a35
2019 #
2020 AC_DEFUN([LC_INODEOPS_USE_UMODE_T],
2021 [AC_MSG_CHECKING([if inode_operations use umode_t as parameter])
2022 tmp_flags="$EXTRA_KCFLAGS"
2023 EXTRA_KCFLAGS="-Werror"
2024 LB_LINUX_TRY_COMPILE([
2025         #include <linux/fs.h>
2026         #include <linux/types.h>
2027         int my_mknod(struct inode *dir, struct dentry *dchild,
2028                      umode_t mode, dev_t dev)
2029         {
2030                 return 0;
2031         }
2032 ],[
2033         struct inode_operations ops;
2034         ops.mknod = my_mknod;
2035 ],[
2036         AC_DEFINE(HAVE_INODEOPS_USE_UMODE_T, 1,
2037                   [inode_operations use umode_t as parameter])
2038         AC_MSG_RESULT([yes])
2039 ],[
2040         AC_MSG_RESULT([no])
2041 ])
2042 EXTRA_KCFLAGS="$tmp_flags"
2043 ])
2044
2045 # 3.4 kmap_atomic removes second argument
2046 # see kernel commit 1ec9c5ddc17aa398f05646abfcbaf315b544e62f
2047 #
2048 AC_DEFUN([LC_KMAP_ATOMIC_HAS_1ARG],
2049 [AC_MSG_CHECKING([if kmap_atomic has only 1 argument])
2050 LB_LINUX_TRY_COMPILE([
2051         #include <linux/highmem.h>
2052 ],[
2053         kmap_atomic(NULL);
2054 ],[
2055         AC_DEFINE(HAVE_KMAP_ATOMIC_HAS_1ARG, 1,
2056                   [have kmap_atomic has only 1 argument])
2057         AC_MSG_RESULT([yes])
2058 ],[
2059         AC_MSG_RESULT([no])
2060 ])
2061 ])
2062
2063 #
2064 # 3.4 switchs touch_atime to struct path
2065 # see kernel commit 68ac1234fb949b66941d94dce4157742799fc581
2066 #
2067 AC_DEFUN([LC_TOUCH_ATIME_1ARG],
2068 [AC_MSG_CHECKING([if touch_atime use one argument])
2069 LB_LINUX_TRY_COMPILE([
2070         #include <linux/fs.h>
2071 ],[
2072         touch_atime((struct path *)NULL);
2073 ],[
2074         AC_DEFINE(HAVE_TOUCH_ATIME_1ARG, 1,
2075                   [touch_atime use one argument])
2076         AC_MSG_RESULT([yes])
2077 ],[
2078         AC_MSG_RESULT([no])
2079 ])
2080 ])
2081
2082 #
2083 # 3.4 converts d_alloc_root to d_make_root
2084 # see kernel commit 32991ab305ace7017c62f8eecbe5eb36dc32e13b
2085 #
2086 AC_DEFUN([LC_HAVE_D_MAKE_ROOT],
2087 [AC_MSG_CHECKING([if have d_make_root])
2088 LB_LINUX_TRY_COMPILE([
2089         #include <linux/fs.h>
2090 ],[
2091         d_make_root((struct inode *)NULL);
2092 ],[
2093         AC_DEFINE(HAVE_D_MAKE_ROOT, 1,
2094                   [have d_make_root])
2095         AC_MSG_RESULT([yes])
2096 ],[
2097         AC_MSG_RESULT([no])
2098 ])
2099 ])
2100
2101 #
2102 # 3.5 renames end_writeback() back to clear_inode()...
2103 # see kernel commit dbd5768f87ff6fb0a4fe09c4d7b6c4a24de99430
2104 #
2105 AC_DEFUN([LC_HAVE_CLEAR_INODE],
2106 [AC_MSG_CHECKING([if have clear_inode])
2107 LB_LINUX_TRY_COMPILE([
2108         #include <linux/fs.h>
2109 ],[
2110         clear_inode((struct inode *)NULL);
2111 ],[
2112         AC_DEFINE(HAVE_CLEAR_INODE, 1,
2113                   [have clear_inode])
2114         AC_MSG_RESULT([yes])
2115 ],[
2116         AC_MSG_RESULT([no])
2117 ])
2118 ])
2119
2120 #
2121 # 3.5 encode_fh has parent inode passed in directly
2122 # see kernel commit b0b0382b
2123 #
2124 AC_DEFUN([LC_HAVE_ENCODE_FH_PARENT],
2125 [AC_MSG_CHECKING([if encode_fh have parent inode as parameter])
2126 tmp_flags="$EXTRA_KCFLAGS"
2127 EXTRA_KCFLAGS="-Werror"
2128 LB_LINUX_TRY_COMPILE([
2129         #include <linux/exportfs.h>
2130         #include <linux/fs.h>
2131         #include <linux/types.h>
2132         int ll_encode_fh(struct inode *i, __u32 *a, int *b, struct inode *p)
2133         {
2134                 return 0;
2135         }
2136 ],[
2137         struct export_operations exp_op;
2138         exp_op.encode_fh = ll_encode_fh;
2139 ],[
2140         AC_DEFINE(HAVE_ENCODE_FH_PARENT, 1,
2141                   [have parent inode as parameter])
2142         AC_MSG_RESULT([yes])
2143 ],[
2144         AC_MSG_RESULT([no])
2145 ])
2146 EXTRA_KCFLAGS="$tmp_flags"
2147 ])
2148
2149 # 3.5 has generic_file_llseek_size with 5 args
2150 AC_DEFUN([LC_FILE_LLSEEK_SIZE_5ARG],
2151 [AC_MSG_CHECKING([if kernel has generic_file_llseek_size with 5 args])
2152 LB_LINUX_TRY_COMPILE([
2153         #include <linux/fs.h>
2154 ],[
2155         generic_file_llseek_size(NULL, 0, 0, 0, 0);
2156 ], [
2157         AC_MSG_RESULT([yes])
2158         AC_DEFINE(HAVE_FILE_LLSEEK_SIZE_5ARGS, 1,
2159                 [kernel has generic_file_llseek_size with 5 args])
2160 ],[
2161         AC_MSG_RESULT([no])
2162 ])
2163 ])
2164
2165 #
2166 # 3.6 switch i_dentry/d_alias from list to hlist
2167 #
2168 AC_DEFUN([LC_HAVE_DENTRY_D_ALIAS_HLIST],
2169 [AC_MSG_CHECKING([if i_dentry/d_alias uses hlist])
2170 tmp_flags="$EXTRA_KCFLAGS"
2171 EXTRA_KCFLAGS="-Werror"
2172 LB_LINUX_TRY_COMPILE([
2173         #include <linux/fs.h>
2174         #include <linux/list.h>
2175 ],[
2176         struct inode inode;
2177         struct dentry dentry;
2178         struct hlist_head head;
2179         struct hlist_node node;
2180         inode.i_dentry = head;
2181         dentry.d_alias = node;
2182 ],[
2183         AC_DEFINE(HAVE_DENTRY_D_ALIAS_HLIST, 1,
2184                   [have i_dentry/d_alias uses hlist])
2185         AC_MSG_RESULT([yes])
2186 ],[
2187         AC_MSG_RESULT([no])
2188 ])
2189 EXTRA_KCFLAGS="$tmp_flags"
2190 ])
2191
2192 #
2193 # 3.6 dentry_open uses struct path as first argument
2194 # see kernel commit 765927b2
2195 #
2196 AC_DEFUN([LC_DENTRY_OPEN_USE_PATH],
2197 [AC_MSG_CHECKING([if dentry_open uses struct path as first argument])
2198 tmp_flags="$EXTRA_KCFLAGS"
2199 EXTRA_KCFLAGS="-Werror"
2200 LB_LINUX_TRY_COMPILE([
2201         #include <linux/fs.h>
2202         #include <linux/path.h>
2203 ],[
2204         struct path path;
2205         dentry_open(&path, 0, NULL);
2206 ],[
2207         AC_DEFINE(HAVE_DENTRY_OPEN_USE_PATH, 1,
2208                   [dentry_open uses struct path as first argument])
2209         AC_MSG_RESULT([yes])
2210 ],[
2211         AC_MSG_RESULT([no])
2212 ])
2213 EXTRA_KCFLAGS="$tmp_flags"
2214 ])
2215
2216 #
2217 # 3.6 vfs adds iop->atomic_open
2218 #
2219 AC_DEFUN([LC_HAVE_IOP_ATOMIC_OPEN],
2220 [AC_MSG_CHECKING([if iop has atomic_open])
2221 LB_LINUX_TRY_COMPILE([
2222         #include <linux/fs.h>
2223 ],[
2224         struct inode_operations iop;
2225         iop.atomic_open = NULL;
2226 ],[
2227         AC_DEFINE(HAVE_IOP_ATOMIC_OPEN, 1,
2228                   [have iop atomic_open])
2229         AC_MSG_RESULT([yes])
2230 ],[
2231         AC_MSG_RESULT([no])
2232 ])
2233 ])
2234
2235 #
2236 # 3.7 posix_acl_{to,from}_xattr take struct user_namespace
2237 #
2238 AC_DEFUN([LC_HAVE_POSIXACL_USER_NS],
2239 [AC_MSG_CHECKING([if posix_acl_to_xattr takes struct user_namespace])
2240 LB_LINUX_TRY_COMPILE([
2241         #include <linux/fs.h>
2242         #include <linux/posix_acl_xattr.h>
2243 ],[
2244         posix_acl_to_xattr((struct user_namespace *)NULL, NULL, NULL, 0);
2245 ],[
2246         AC_DEFINE(HAVE_POSIXACL_USER_NS, 1,
2247                   [posix_acl_to_xattr takes struct user_namespace])
2248         AC_MSG_RESULT([yes])
2249 ],[
2250         AC_MSG_RESULT([no])
2251 ])
2252 ])
2253
2254 #
2255 # LC_PROG_LINUX
2256 #
2257 # Lustre linux kernel checks
2258 #
2259 AC_DEFUN([LC_PROG_LINUX],
2260          [
2261          LC_CONFIG_PINGER
2262          LC_CONFIG_CHECKSUM
2263          LC_CONFIG_LIBLUSTRE_RECOVERY
2264          LC_CONFIG_HEALTH_CHECK_WRITE
2265          LC_CONFIG_LRU_RESIZE
2266          LC_LLITE_LLOOP_MODULE
2267
2268          # RHEL4 patches
2269          LC_EXPORT_TRUNCATE_COMPLETE
2270          LC_EXPORT_D_REHASH_COND
2271          LC_EXPORT___D_REHASH
2272          LC_EXPORT_NODE_TO_CPUMASK
2273
2274          LC_FILEMAP_POPULATE
2275          LC_BIT_SPINLOCK_H
2276
2277          LC_CONST_ACL_SIZE
2278
2279          LC_CAPA_CRYPTO
2280          LC_CONFIG_RMTCLIENT
2281          LC_CONFIG_GSS
2282          LC_TASK_CLENV_STORE
2283
2284          # 2.6.12
2285          LC_RW_TREE_LOCK
2286
2287          # 2.6.18
2288          LC_UMOUNTBEGIN_HAS_VFSMOUNT
2289
2290          #2.6.18 + RHEL5 (fc6)
2291          LC_LINUX_FIEMAP_H
2292
2293          # 2.6.19
2294          LC_FILE_WRITEV
2295          LC_FILE_READV
2296
2297          # 2.6.20
2298          LC_CANCEL_DIRTY_PAGE
2299
2300          # raid5-zerocopy patch
2301          LC_PAGE_CONSTANT
2302
2303          # 2.6.22
2304          LC_INVALIDATE_BDEV_2ARG
2305          LC_ASYNC_BLOCK_CIPHER
2306          LC_STRUCT_HASH_DESC
2307          LC_STRUCT_BLKCIPHER_DESC
2308          LC_FS_RENAME_DOES_D_MOVE
2309
2310          # 2.6.23
2311          LC_UNREGISTER_BLKDEV_RETURN_INT
2312          LC_KERNEL_SPLICE_READ
2313          LC_KERNEL_SENDFILE
2314          LC_HAVE_EXPORTFS_H
2315          LC_VM_OP_FAULT
2316          LC_PROCFS_USERS
2317          LC_EXPORTFS_DECODE_FH
2318
2319          # 2.6.24
2320          LC_HAVE_MMTYPES_H
2321          LC_BIO_ENDIO_2ARG
2322          LC_FH_TO_DENTRY
2323          LC_PROCFS_DELETED
2324          LC_EXPORT_BDI_INIT
2325
2326          # 2.6.26
2327          LC_FS_STRUCT_USE_PATH
2328
2329          # 2.6.27
2330          LC_SECURITY_PLUG  # for SLES10 SP2
2331          LC_PGMKWRITE_USE_VMFAULT
2332          LC_PGMKWRITE_COMPACT
2333          LC_INODE_PERMISION_2ARGS
2334          LC_TRYLOCKPAGE
2335          LC_READ_INODE_IN_SBOPS
2336          LC_EXPORT_INODE_PERMISSION
2337          LC_QUOTA_ON_5ARGS
2338          LC_QUOTA_OFF_3ARGS
2339          LC_VFS_DQ_OFF
2340          LC_LOCK_MAP_ACQUIRE
2341
2342          # 2.6.27.15-2 sles11
2343          LC_BI_HW_SEGMENTS
2344          LC_HAVE_QUOTAIO_H
2345          LC_BDI_NAME
2346          LC_SB_ANY_QUOTA_ACTIVE
2347          LC_SB_HAS_QUOTA_ACTIVE
2348          LC_EXPORT_ADD_TO_PAGE_CACHE_LRU
2349
2350          # 2.6.29
2351          LC_SB_ANY_QUOTA_LOADED
2352
2353          # 2.6.30
2354          LC_EXPORT_CPUMASK_OF_NODE
2355
2356          # 2.6.31
2357          LC_BLK_QUEUE_LOG_BLK_SIZE
2358
2359          # 2.6.32
2360          LC_REQUEST_QUEUE_LIMITS
2361          LC_EXPORT_BDI_REGISTER
2362          LC_SB_BDI
2363          LC_BLK_QUEUE_MAX_SECTORS
2364          LC_BLK_QUEUE_MAX_SEGMENTS
2365          LC_SET_CPUS_ALLOWED
2366          LC_CACHE_UPCALL
2367          LC_EXPORT_GENERIC_ERROR_REMOVE_PAGE
2368          LC_SELINUX_IS_ENABLED
2369          LC_EXPORT_ACCESS_PROCESS_VM
2370          LC_VFS_INODE_NEWSIZE_OK
2371
2372          # 2.6.34
2373          LC_HAVE_DQUOT_FS_DISK_QUOTA
2374          LC_HAVE_DQUOT_SUSPEND
2375
2376          # 2.6.35, 3.0.0
2377          LC_FILE_FSYNC
2378          LC_EXPORT_SIMPLE_SETATTR
2379
2380          # 2.6.36
2381          LC_FS_STRUCT_RWLOCK
2382          LC_SBOPS_EVICT_INODE
2383
2384          # 2.6.37
2385          LC_KERNEL_LOCKED
2386
2387          # 2.6.38
2388          LC_BLKDEV_GET_BY_DEV
2389          LC_GENERIC_PERMISSION
2390          LC_QUOTA_ON_USE_PATH
2391          LC_DCACHE_LOCK
2392          LC_D_COMPARE_7ARGS
2393          LC_D_DELETE_CONST
2394
2395          # 2.6.39
2396          LC_REQUEST_QUEUE_UNPLUG_FN
2397          LC_HAVE_FSTYPE_MOUNT
2398
2399          # 3.0
2400          LC_DIRTY_INODE_WITH_FLAG
2401
2402          # 3.1
2403          LC_LM_XXX_LOCK_MANAGER_OPS
2404          LC_INODE_DIO_WAIT
2405          LC_IOP_GET_ACL
2406          LC_FILE_LLSEEK_SIZE
2407
2408          # 3.1.1
2409          LC_BLOCKS_FOR_TRUNCATE
2410
2411          # 3.2
2412          LC_HAVE_VOID_MAKE_REQUEST_FN
2413          LC_HAVE_PROTECT_I_NLINK
2414
2415          # 3.3
2416          LC_HAVE_MIGRATE_HEADER
2417          LC_MIGRATEPAGE_4ARGS
2418          LC_SUPEROPS_USE_DENTRY
2419          LC_INODEOPS_USE_UMODE_T
2420
2421          # 3.4
2422          LC_TOUCH_ATIME_1ARG
2423          LC_HAVE_D_MAKE_ROOT
2424          LC_KMAP_ATOMIC_HAS_1ARG
2425
2426          # 3.5
2427          LC_HAVE_CLEAR_INODE
2428          LC_HAVE_ENCODE_FH_PARENT
2429          LC_FILE_LLSEEK_SIZE_5ARG
2430
2431          # 3.6
2432          LC_HAVE_DENTRY_D_ALIAS_HLIST
2433          LC_DENTRY_OPEN_USE_PATH
2434          LC_HAVE_IOP_ATOMIC_OPEN
2435
2436          # 3.7
2437          LC_HAVE_POSIXACL_USER_NS
2438          #
2439          if test x$enable_server = xyes ; then
2440                 AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
2441                 LC_FUNC_DEV_SET_RDONLY
2442                 LC_STACK_SIZE
2443                 LC_QUOTA64
2444                 LC_QUOTA_CONFIG
2445          fi
2446 ])
2447
2448 #
2449 # LC_CONFIG_CLIENT_SERVER
2450 #
2451 # Build client/server sides of Lustre
2452 #
2453 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
2454 [AC_MSG_CHECKING([whether to build Lustre server support])
2455 AC_ARG_ENABLE([server],
2456         AC_HELP_STRING([--disable-server],
2457                         [disable Lustre server support]),
2458         [],[enable_server='yes'])
2459 AC_MSG_RESULT([$enable_server])
2460
2461 AC_MSG_CHECKING([whether to build Lustre client support])
2462 AC_ARG_ENABLE([client],
2463         AC_HELP_STRING([--disable-client],
2464                         [disable Lustre client support]),
2465         [],[enable_client='yes'])
2466 AC_MSG_RESULT([$enable_client])])
2467
2468 #
2469 # LC_CONFIG_LIBLUSTRE
2470 #
2471 # whether to build liblustre
2472 #
2473 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
2474 [AC_MSG_CHECKING([whether to build Lustre library])
2475 AC_ARG_ENABLE([liblustre],
2476         AC_HELP_STRING([--disable-liblustre],
2477                         [disable building of Lustre library]),
2478         [],[enable_liblustre=$with_sysio])
2479 AC_MSG_RESULT([$enable_liblustre])
2480 # only build sysio if liblustre is built
2481 with_sysio="$enable_liblustre"
2482
2483 AC_MSG_CHECKING([whether to build liblustre tests])
2484 AC_ARG_ENABLE([liblustre-tests],
2485         AC_HELP_STRING([--enable-liblustre-tests],
2486                         [enable liblustre tests, if --disable-tests is used]),
2487         [],[enable_liblustre_tests=$enable_tests])
2488 if test x$enable_liblustre != xyes ; then
2489    enable_liblustre_tests='no'
2490 fi
2491 AC_MSG_RESULT([$enable_liblustre_tests])
2492
2493 AC_MSG_CHECKING([whether to enable liblustre acl])
2494 AC_ARG_ENABLE([liblustre-acl],
2495         AC_HELP_STRING([--disable-liblustre-acl],
2496                         [disable ACL support for liblustre]),
2497         [],[enable_liblustre_acl=yes])
2498 AC_MSG_RESULT([$enable_liblustre_acl])
2499 if test x$enable_liblustre_acl = xyes ; then
2500   AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
2501 fi
2502
2503 # 2.6.29 change prepare/commit_write to write_begin/end
2504 AC_DEFUN([LC_WRITE_BEGIN_END],
2505 [AC_MSG_CHECKING([if kernel has .write_begin/end])
2506 LB_LINUX_TRY_COMPILE([
2507         #include <linux/fs.h>
2508         #include <linux/pagemap.h>
2509 #ifdef HAVE_LINUX_MMTYPES_H
2510         #include <linux/mm_types.h>
2511 #endif
2512 ],[
2513         struct address_space_operations aops;
2514         struct page *page;
2515
2516         aops.write_begin = NULL;
2517         aops.write_end = NULL;
2518         page = grab_cache_page_write_begin(NULL, 0, 0);
2519 ], [
2520         AC_MSG_RESULT([yes])
2521         AC_DEFINE(HAVE_KERNEL_WRITE_BEGIN_END, 1,
2522                 [kernel has .write_begin/end])
2523 ],[
2524         AC_MSG_RESULT([no])
2525 ])
2526 ])
2527
2528 # 2.6.29 blkdev_put has 2 arguments
2529 AC_DEFUN([LC_BLKDEV_PUT_2ARGS],
2530 [AC_MSG_CHECKING([blkdev_put needs 2 parameters])
2531 LB_LINUX_TRY_COMPILE([
2532         #include <linux/fs.h>
2533 ],[
2534         blkdev_put(NULL, 0);
2535 ],[
2536         AC_DEFINE(HAVE_BLKDEV_PUT_2ARGS, 1,
2537                 [blkdev_put needs 2 paramters])
2538         AC_MSG_RESULT([yes])
2539 ],[
2540         AC_MSG_RESULT([no])
2541 ])
2542 ])
2543
2544 # 2.6.29 dentry_open has 4 arguments
2545 AC_DEFUN([LC_DENTRY_OPEN_4ARGS],
2546 [AC_MSG_CHECKING([dentry_open needs 4 parameters])
2547 LB_LINUX_TRY_COMPILE([
2548         #include <linux/fs.h>
2549 ],[
2550         dentry_open(NULL, NULL, 0, NULL);
2551 ],[
2552         AC_DEFINE(HAVE_DENTRY_OPEN_4ARGS, 1,
2553                 [dentry_open needs 4 paramters])
2554         AC_MSG_RESULT([yes])
2555 ],[
2556         AC_MSG_RESULT([no])
2557 ])
2558 ])
2559
2560 # 2.6.29 split file and anonymous page queues
2561 AC_DEFUN([LC_PAGEVEC_LRU_ADD_FILE],
2562 [AC_MSG_CHECKING([if kernel has .pagevec_lru_add_file])
2563 LB_LINUX_TRY_COMPILE([
2564         #include <linux/mm.h>
2565         #include <linux/pagevec.h>
2566 ],[
2567         struct pagevec lru_pagevec;
2568
2569         pagevec_init(&lru_pagevec, 0);
2570         pagevec_lru_add_file(&lru_pagevec);
2571 ],[
2572         AC_MSG_RESULT([yes])
2573         AC_DEFINE(HAVE_PAGEVEC_LRU_ADD_FILE, 1,
2574                 [kernel has .pagevec_lru_add_file])
2575 ],[
2576         AC_MSG_RESULT([no])
2577 ])
2578 ])
2579
2580 #
2581 # --enable-mpitest
2582 #
2583 AC_ARG_ENABLE(mpitests,
2584         AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
2585                            [include mpi tests]),
2586         [
2587          enable_mpitests=yes
2588          case $enableval in
2589          yes)
2590                 MPICC_WRAPPER=mpicc
2591                 ;;
2592          no)
2593                 enable_mpitests=no
2594                 ;;
2595          *)
2596                 MPICC_WRAPPER=$enableval
2597                  ;;
2598          esac
2599         ],
2600         [
2601         MPICC_WRAPPER=mpicc
2602         enable_mpitests=yes
2603         ]
2604 )
2605
2606 if test x$enable_mpitests != xno; then
2607         AC_MSG_CHECKING([whether mpitests can be built])
2608         oldcc=$CC
2609         CC=$MPICC_WRAPPER
2610         AC_LINK_IFELSE(
2611             [AC_LANG_PROGRAM([[
2612                     #include <mpi.h>
2613                 ]],[[
2614                     int flag;
2615                     MPI_Initialized(&flag);
2616                 ]])],
2617             [
2618                     AC_MSG_RESULT([yes])
2619             ],[
2620                     AC_MSG_RESULT([no])
2621                     enable_mpitests=no
2622         ])
2623         CC=$oldcc
2624 fi
2625 AC_SUBST(MPICC_WRAPPER)
2626
2627 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
2628 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
2629
2630 LC_CONFIG_PINGER
2631 LC_CONFIG_LIBLUSTRE_RECOVERY
2632 ])
2633
2634 #
2635 # LC_CONFIG_QUOTA
2636 #
2637 # whether to enable quota support global control
2638 #
2639 AC_DEFUN([LC_CONFIG_QUOTA],
2640 [AC_ARG_ENABLE([quota],
2641         AC_HELP_STRING([--enable-quota],
2642                         [enable quota support]),
2643         [],[enable_quota='yes'])
2644 ])
2645
2646 AC_DEFUN([LC_QUOTA],
2647 [#check global
2648 LC_CONFIG_QUOTA
2649 #check for utils
2650 AC_CHECK_HEADER(sys/quota.h,
2651                 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
2652                 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
2653 ])
2654
2655 #
2656 # LC_CONFIG_SPLIT
2657 #
2658 # whether to enable split support
2659 #
2660 AC_DEFUN([LC_CONFIG_SPLIT],
2661 [AC_MSG_CHECKING([whether to enable split support])
2662 AC_ARG_ENABLE([split],
2663         AC_HELP_STRING([--enable-split],
2664                         [enable split support]),
2665         [],[enable_split='no'])
2666 AC_MSG_RESULT([$enable_split])
2667 if test x$enable_split != xno; then
2668    AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
2669 fi
2670 ])
2671
2672 # RHEL5(2.6.18) has tux_info
2673 AC_DEFUN([LC_TASK_CLENV_TUX_INFO],
2674 [AC_MSG_CHECKING([tux_info])
2675 LB_LINUX_TRY_COMPILE([
2676         #include <linux/sched.h>
2677 ],[
2678         struct task_struct task;
2679         &task.tux_info;
2680 ],[
2681         AC_MSG_RESULT([yes])
2682         AC_DEFINE(LL_TASK_CL_ENV, tux_info, [have tux_info])
2683         have_task_clenv_store='yes'
2684 ],[
2685         AC_MSG_RESULT([no])
2686 ])
2687 ])
2688
2689 #
2690 # LC_LLITE_LLOOP_MODULE
2691 # lloop_llite.ko does not currently work with page sizes
2692 # of 64k or larger.
2693 #
2694 AC_DEFUN([LC_LLITE_LLOOP_MODULE],
2695 [AC_MSG_CHECKING([whether to enable llite_lloop module])
2696 LB_LINUX_TRY_COMPILE([
2697         #include <asm/page.h>
2698 ],[
2699         #if PAGE_SIZE >= 65536
2700         #error "PAGE_SIZE >= 65536"
2701         #endif
2702 ],[
2703         enable_llite_lloop_module='yes'
2704         AC_MSG_RESULT([yes])
2705 ],[
2706         enable_llite_lloop_module='no'
2707         AC_MSG_RESULT([no])
2708 ])
2709 ])
2710
2711 #
2712 # LC_OSD_ADDON
2713 #
2714 # configure support for optional OSD implementation
2715 #
2716 AC_DEFUN([LC_OSD_ADDON],
2717 [AC_MSG_CHECKING([for osd])
2718 AC_ARG_WITH([osd],
2719         AC_HELP_STRING([--with-osd=path],
2720                        [set path to optional osd]),
2721         [
2722                 case $with_osd in
2723                         no)     ENABLEOSDADDON=0
2724                                 ;;
2725                         *)      OSDADDON="${with_osd}"
2726                                 ENABLEOSDADDON=1
2727                                 ;;
2728                 esac
2729         ], [
2730                 ENABLEOSDADDON=0
2731         ])
2732 if test $ENABLEOSDADDON -eq 0; then
2733         AC_MSG_RESULT([no])
2734         OSDADDON=
2735 else
2736         OSDMODNAME=`basename $OSDADDON`
2737         if test -e $LUSTRE/$OSDMODNAME; then
2738                 AC_MSG_RESULT([can't link])
2739                 OSDADDON=
2740         elif ln -s $OSDADDON $LUSTRE/$OSDMODNAME; then
2741                 AC_MSG_RESULT([$OSDMODNAME])
2742                 OSDADDON="subdir-m += $OSDMODNAME"
2743         else
2744                 AC_MSG_RESULT([can't link])
2745                 OSDADDON=
2746         fi
2747 fi
2748 AC_SUBST(OSDADDON)
2749 ])
2750
2751 #
2752 # LC_CONFIGURE
2753 #
2754 # other configure checks
2755 #
2756 AC_DEFUN([LC_CONFIGURE],
2757 [LC_CONFIG_OBD_BUFFER_SIZE
2758
2759 if test $target_cpu == "i686" -o $target_cpu == "x86_64"; then
2760         CFLAGS="$CFLAGS -Werror"
2761 fi
2762
2763 # maximum MDS thread count
2764 LC_MDS_MAX_THREADS
2765
2766 # include/liblustre.h
2767 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
2768
2769 # liblustre/llite_lib.h
2770 AC_CHECK_HEADERS([xtio.h file.h])
2771
2772 # liblustre/dir.c
2773 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
2774
2775 # liblustre/lutil.c
2776 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
2777 AC_CHECK_FUNCS([inet_ntoa])
2778
2779 # libsysio/src/readlink.c
2780 LC_READLINK_SSIZE_T
2781
2782 # lvfs/prng.c - depends on linux/types.h from liblustre/dir.c
2783 AC_CHECK_HEADERS([linux/random.h], [], [],
2784                  [#ifdef HAVE_LINUX_TYPES_H
2785                   # include <linux/types.h>
2786                   #endif
2787                  ])
2788
2789 # utils/llverfs.c
2790 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
2791
2792 # check for -lz support
2793 ZLIB=""
2794 AC_CHECK_LIB([z],
2795              [adler32],
2796              [AC_CHECK_HEADERS([zlib.h],
2797                                [ZLIB="-lz"
2798                                 AC_DEFINE([HAVE_ADLER], 1,
2799                                           [support alder32 checksum type])],
2800                                [AC_MSG_WARN([No zlib-devel package found,
2801                                              unable to use adler32 checksum])])],
2802              [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
2803 )
2804 AC_SUBST(ZLIB)
2805
2806 # Super safe df
2807 AC_ARG_ENABLE([mindf],
2808       AC_HELP_STRING([--enable-mindf],
2809                       [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
2810       [],[])
2811 if test "$enable_mindf" = "yes" ;  then
2812       AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
2813 fi
2814
2815 AC_ARG_ENABLE([fail_alloc],
2816         AC_HELP_STRING([--disable-fail-alloc],
2817                 [disable randomly alloc failure]),
2818         [],[enable_fail_alloc=yes])
2819 AC_MSG_CHECKING([whether to randomly failing memory alloc])
2820 AC_MSG_RESULT([$enable_fail_alloc])
2821 if test x$enable_fail_alloc != xno ; then
2822         AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
2823 fi
2824
2825 AC_ARG_ENABLE([invariants],
2826         AC_HELP_STRING([--enable-invariants],
2827                 [enable invariant checking (cpu intensive)]),
2828         [],[])
2829 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
2830 AC_MSG_RESULT([$enable_invariants])
2831 if test x$enable_invariants = xyes ; then
2832         AC_DEFINE([INVARIANT_CHECK], 1, [enable invariant checking])
2833 fi
2834
2835 AC_ARG_ENABLE([lu_ref],
2836         AC_HELP_STRING([--enable-lu_ref],
2837                 [enable lu_ref reference tracking code]),
2838         [],[])
2839 AC_MSG_CHECKING([whether to track references with lu_ref])
2840 AC_MSG_RESULT([$enable_lu_ref])
2841 if test x$enable_lu_ref = xyes ; then
2842         AC_DEFINE([USE_LU_REF], 1, [enable lu_ref reference tracking code])
2843 fi
2844
2845 AC_ARG_ENABLE([pgstate-track],
2846               AC_HELP_STRING([--enable-pgstate-track],
2847                              [enable page state tracking]),
2848               [enable_pgstat_track='yes'],[])
2849 AC_MSG_CHECKING([whether to enable page state tracking])
2850 AC_MSG_RESULT([$enable_pgstat_track])
2851 if test x$enable_pgstat_track = xyes ; then
2852         AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
2853                   [enable page state tracking code])
2854 fi
2855
2856          #2.6.29
2857          LC_WRITE_BEGIN_END
2858          LC_D_OBTAIN_ALIAS
2859          LC_BLKDEV_PUT_2ARGS
2860          LC_DENTRY_OPEN_4ARGS
2861          LC_PAGEVEC_LRU_ADD_FILE
2862
2863 ])
2864
2865 #
2866 # LC_CONDITIONALS
2867 #
2868 # AM_CONDITIONALS for lustre
2869 #
2870 AC_DEFUN([LC_CONDITIONALS],
2871 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
2872 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
2873 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
2874 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
2875 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
2876 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
2877 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
2878 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
2879 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
2880 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
2881 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
2882 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
2883 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
2884 AM_CONDITIONAL(LLITE_LLOOP, test x$enable_llite_lloop_module = xyes)
2885 ])
2886
2887 #
2888 # LC_CONFIG_FILES
2889 #
2890 # files that should be generated with AC_OUTPUT
2891 #
2892 AC_DEFUN([LC_CONFIG_FILES],
2893 [AC_CONFIG_FILES([
2894 lustre/Makefile
2895 lustre/autoMakefile
2896 lustre/autoconf/Makefile
2897 lustre/conf/Makefile
2898 lustre/contrib/Makefile
2899 lustre/doc/Makefile
2900 lustre/include/Makefile
2901 lustre/include/lustre_ver.h
2902 lustre/include/linux/Makefile
2903 lustre/include/darwin/Makefile
2904 lustre/include/lustre/Makefile
2905 lustre/kernel_patches/targets/2.6-rhel6.target
2906 lustre/kernel_patches/targets/2.6-rhel5.target
2907 lustre/kernel_patches/targets/2.6-sles11.target
2908 lustre/kernel_patches/targets/3.0-sles11.target
2909 lustre/kernel_patches/targets/2.6-fc11.target
2910 lustre/kernel_patches/targets/2.6-fc12.target
2911 lustre/kernel_patches/targets/2.6-fc15.target
2912 lustre/kernel_patches/targets/3.x-fc18.target
2913 lustre/ldlm/Makefile
2914 lustre/fid/Makefile
2915 lustre/fid/autoMakefile
2916 lustre/liblustre/Makefile
2917 lustre/liblustre/tests/Makefile
2918 lustre/liblustre/tests/mpi/Makefile
2919 lustre/llite/Makefile
2920 lustre/llite/autoMakefile
2921 lustre/lclient/Makefile
2922 lustre/lov/Makefile
2923 lustre/lov/autoMakefile
2924 lustre/lvfs/Makefile
2925 lustre/lvfs/autoMakefile
2926 lustre/mdc/Makefile
2927 lustre/mdc/autoMakefile
2928 lustre/lmv/Makefile
2929 lustre/lmv/autoMakefile
2930 lustre/mdt/Makefile
2931 lustre/mdt/autoMakefile
2932 lustre/mdd/Makefile
2933 lustre/mdd/autoMakefile
2934 lustre/fld/Makefile
2935 lustre/fld/autoMakefile
2936 lustre/obdclass/Makefile
2937 lustre/obdclass/autoMakefile
2938 lustre/obdclass/linux/Makefile
2939 lustre/obdecho/Makefile
2940 lustre/obdecho/autoMakefile
2941 lustre/ofd/Makefile
2942 lustre/ofd/autoMakefile
2943 lustre/osc/Makefile
2944 lustre/osc/autoMakefile
2945 lustre/ost/Makefile
2946 lustre/ost/autoMakefile
2947 lustre/osd-ldiskfs/Makefile
2948 lustre/osd-ldiskfs/autoMakefile
2949 lustre/osd-zfs/Makefile
2950 lustre/osd-zfs/autoMakefile
2951 lustre/mgc/Makefile
2952 lustre/mgc/autoMakefile
2953 lustre/mgs/Makefile
2954 lustre/mgs/autoMakefile
2955 lustre/target/Makefile
2956 lustre/ptlrpc/Makefile
2957 lustre/ptlrpc/autoMakefile
2958 lustre/ptlrpc/gss/Makefile
2959 lustre/ptlrpc/gss/autoMakefile
2960 lustre/quota/Makefile
2961 lustre/quota/autoMakefile
2962 lustre/scripts/Makefile
2963 lustre/tests/Makefile
2964 lustre/tests/mpi/Makefile
2965 lustre/utils/Makefile
2966 lustre/utils/gss/Makefile
2967 lustre/osp/Makefile
2968 lustre/osp/autoMakefile
2969 lustre/lod/Makefile
2970 lustre/lod/autoMakefile
2971 lustre/obdclass/darwin/Makefile
2972 ])
2973 ])