lustre/autoconf/lustre-core.m4

   1 #* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2 #* vim:expandtab:shiftwidth=8:tabstop=8:
   3 #
   4 # LC_CONFIG_SRCDIR
   5 #
   6 # Wrapper for AC_CONFIG_SUBDIR
   7 #
   8 AC_DEFUN([LC_CONFIG_SRCDIR],
   9 [AC_CONFIG_SRCDIR([lustre/obdclass/obdo.c])
  10 libcfs_is_module=yes
  11 ])
  12
  13 #
  14 # LC_PATH_DEFAULTS
  15 #
  16 # lustre specific paths
  17 #
  18 AC_DEFUN([LC_PATH_DEFAULTS],
  19 [# ptlrpc kernel build requires this
  20 LUSTRE="$PWD/lustre"
  21 AC_SUBST(LUSTRE)
  22
  23 # mount.lustre
  24 rootsbindir='/sbin'
  25 AC_SUBST(rootsbindir)
  26
  27 demodir='$(docdir)/demo'
  28 AC_SUBST(demodir)
  29
  30 pkgexampledir='${pkgdatadir}/examples'
  31 AC_SUBST(pkgexampledir)
  32 ])
  33
  34 #
  35 # LC_TARGET_SUPPORTED
  36 #
  37 # is the target os supported?
  38 #
  39 AC_DEFUN([LC_TARGET_SUPPORTED],
  40 [case $target_os in
  41         linux* | darwin*)
  42 $1
  43                 ;;
  44         *)
  45 $2
  46                 ;;
  47 esac
  48 ])
  49
  50 #
  51 # LC_CONFIG_EXT3
  52 #
  53 # that ext3 is enabled in the kernel
  54 #
  55 AC_DEFUN([LC_CONFIG_EXT3],
  56 [LB_LINUX_CONFIG([EXT3_FS],[],[
  57         LB_LINUX_CONFIG([EXT3_FS_MODULE],[],[$2])
  58 ])
  59 LB_LINUX_CONFIG([EXT3_FS_XATTR],[$1],[$3])
  60 ])
  61
  62 #
  63 # LC_FSHOOKS
  64 #
  65 # If we have (and can build) fshooks.h
  66 #
  67 AC_DEFUN([LC_FSHOOKS],
  68 [LB_CHECK_FILE([$LINUX/include/linux/fshooks.h],[
  69         AC_MSG_CHECKING([if fshooks.h can be compiled])
  70         LB_LINUX_TRY_COMPILE([
  71                 #include <linux/fshooks.h>
  72         ],[],[
  73                 AC_MSG_RESULT([yes])
  74         ],[
  75                 AC_MSG_RESULT([no])
  76                 AC_MSG_WARN([You might have better luck with gcc 3.3.x.])
  77                 AC_MSG_WARN([You can set CC=gcc33 before running configure.])
  78                 AC_MSG_ERROR([Your compiler cannot build fshooks.h.])
  79         ])
  80 $1
  81 ],[
  82 $2
  83 ])
  84 ])
  85
  86 #
  87 # LC_FUNC_RELEASEPAGE_WITH_INT
  88 #
  89 # if ->releasepage() takes an int arg in 2.6.9
  90 # This kernel defines gfp_t (HAS_GFP_T) but doesn't use it for this function,
  91 # while others either don't have gfp_t or pass gfp_t as the parameter.
  92 #
  93 AC_DEFUN([LC_FUNC_RELEASEPAGE_WITH_INT],
  94 [AC_MSG_CHECKING([if releasepage has a int parameter])
  95 RELEASEPAGE_WITH_INT="`grep -c 'releasepage.*int' $LINUX/include/linux/fs.h`"
  96 if test "$RELEASEPAGE_WITH_INT" != 0 ; then
  97         AC_DEFINE(HAVE_RELEASEPAGE_WITH_INT, 1,
  98                   [releasepage with int parameter])
  99         AC_MSG_RESULT([yes])
 100 else
 101         AC_MSG_RESULT([no])
 102 fi
 103 ])
 104
 105 #
 106 # LC_FUNC_FILEMAP_FDATASYNC
 107 #
 108 # if filemap_fdatasync() exists
 109 #
 110 AC_DEFUN([LC_FUNC_FILEMAP_FDATAWRITE],
 111 [AC_MSG_CHECKING([whether filemap_fdatawrite() is defined])
 112 LB_LINUX_TRY_COMPILE([
 113         #include <linux/fs.h>
 114 ],[
 115         int (*foo)(struct address_space *)= filemap_fdatawrite;
 116 ],[
 117         AC_MSG_RESULT([yes])
 118         AC_DEFINE(HAVE_FILEMAP_FDATAWRITE, 1, [filemap_fdatawrite() found])
 119 ],[
 120         AC_MSG_RESULT([no])
 121 ])
 122 ])
 123
 124 #
 125 # LC_HEADER_MM_INLINE
 126 #
 127 # RHEL kernels define page_count in mm_inline.h
 128 #
 129 AC_DEFUN([LC_HEADER_MM_INLINE],
 130 [AC_MSG_CHECKING([if kernel has mm_inline.h header])
 131 LB_LINUX_TRY_COMPILE([
 132         #include <linux/mm_inline.h>
 133 ],[
 134         #ifndef page_count
 135         #error mm_inline.h does not define page_count
 136         #endif
 137 ],[
 138         AC_MSG_RESULT([yes])
 139         AC_DEFINE(HAVE_MM_INLINE, 1, [mm_inline found])
 140 ],[
 141         AC_MSG_RESULT([no])
 142 ])
 143 ])
 144
 145 #
 146 # LC_STRUCT_INODE
 147 #
 148 # if inode->i_alloc_sem exists
 149 #
 150 AC_DEFUN([LC_STRUCT_INODE],
 151 [AC_MSG_CHECKING([if struct inode has i_alloc_sem])
 152 LB_LINUX_TRY_COMPILE([
 153         #include <linux/fs.h>
 154         #include <linux/version.h>
 155 ],[
 156         #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,24))
 157         #error "down_read_trylock broken before 2.4.24"
 158         #endif
 159         struct inode i;
 160         return (char *)&i.i_alloc_sem - (char *)&i;
 161 ],[
 162         AC_MSG_RESULT([yes])
 163         AC_DEFINE(HAVE_I_ALLOC_SEM, 1, [struct inode has i_alloc_sem])
 164 ],[
 165         AC_MSG_RESULT([no])
 166 ])
 167 ])
 168
 169 #
 170 # LC_FUNC_REGISTER_CACHE
 171 #
 172 # if register_cache() is defined by kernel
 173 #
 174 # There are two ways to shrink one customized cache in linux kernels. For the
 175 # kernels are prior than 2.6.5(?), register_cache() is used, and for latest
 176 # kernels, set_shrinker() is used instead.
 177 #
 178 AC_DEFUN([LC_FUNC_REGISTER_CACHE],
 179 [AC_MSG_CHECKING([if kernel defines cache pressure hook])
 180 LB_LINUX_TRY_COMPILE([
 181         #include <linux/mm.h>
 182 ],[
 183         shrinker_t shrinker;
 184
 185         set_shrinker(1, shrinker);
 186 ],[
 187         AC_MSG_RESULT([set_shrinker])
 188         AC_DEFINE(HAVE_SHRINKER_CACHE, 1, [shrinker_cache found])
 189         AC_DEFINE(HAVE_CACHE_RETURN_INT, 1, [shrinkers should return int])
 190 ],[
 191         LB_LINUX_TRY_COMPILE([
 192                 #include <linux/list.h>
 193                 #include <linux/cache_def.h>
 194         ],[
 195                 struct cache_definition cache;
 196         ],[
 197                 AC_MSG_RESULT([register_cache])
 198                 AC_DEFINE(HAVE_REGISTER_CACHE, 1, [register_cache found])
 199                 AC_MSG_CHECKING([if kernel expects return from cache shrink ])
 200                 tmp_flags="$EXTRA_KCFLAGS"
 201                 EXTRA_KCFLAGS="-Werror"
 202                 LB_LINUX_TRY_COMPILE([
 203                         #include <linux/list.h>
 204                         #include <linux/cache_def.h>
 205                 ],[
 206                         struct cache_definition c;
 207                         c.shrinker = (int (*)(int, unsigned int))1;
 208                 ],[
 209                         AC_DEFINE(HAVE_CACHE_RETURN_INT, 1,
 210                                   [kernel expects return from shrink_cache])
 211                         AC_MSG_RESULT(yes)
 212                 ],[
 213                         AC_MSG_RESULT(no)
 214                 ])
 215                 EXTRA_KCFLAGS="$tmp_flags"
 216         ],[
 217                 AC_MSG_RESULT([no])
 218         ])
 219 ])
 220 ])
 221
 222 #
 223 # LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
 224 #
 225 # check for our patched grab_cache_page_nowait_gfp() function
 226 #
 227 AC_DEFUN([LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP],
 228 [AC_MSG_CHECKING([if kernel defines grab_cache_page_nowait_gfp()])
 229 HAVE_GCPN_GFP="`grep -c 'grab_cache_page_nowait_gfp' $LINUX/include/linux/pagemap.h`"
 230 if test "$HAVE_GCPN_GFP" != 0 ; then
 231         AC_DEFINE(HAVE_GRAB_CACHE_PAGE_NOWAIT_GFP, 1,
 232                 [kernel has grab_cache_page_nowait_gfp()])
 233         AC_MSG_RESULT(yes)
 234 else
 235         AC_MSG_RESULT(no)
 236 fi
 237 ])
 238
 239 #
 240 # LC_FUNC_DEV_SET_RDONLY
 241 #
 242 # check for the old-style dev_set_rdonly which took an extra "devno" param
 243 # and can only set a single device to discard writes at one time
 244 #
 245 AC_DEFUN([LC_FUNC_DEV_SET_RDONLY],
 246 [AC_MSG_CHECKING([if kernel has new dev_set_rdonly])
 247 LB_LINUX_TRY_COMPILE([
 248         #include <linux/fs.h>
 249 ],[
 250         #ifndef HAVE_CLEAR_RDONLY_ON_PUT
 251         #error needs to be patched by lustre kernel patches from Lustre version 1.4.3 or above.
 252         #endif
 253 ],[
 254         AC_MSG_RESULT([yes])
 255         AC_DEFINE(HAVE_DEV_SET_RDONLY, 1, [kernel has new dev_set_rdonly])
 256 ],[
 257         AC_MSG_RESULT([no, Linux kernel source needs to be patches by lustre
 258 kernel patches from Lustre version 1.4.3 or above.])
 259 ])
 260 ])
 261
 262 #
 263 # LC_CONFIG_BACKINGFS
 264 #
 265 # setup, check the backing filesystem
 266 #
 267 AC_DEFUN([LC_CONFIG_BACKINGFS],
 268 [
 269 BACKINGFS="ldiskfs"
 270
 271 if test x$with_ldiskfs = xno ; then
 272         BACKINGFS="ext3"
 273
 274         if test x$linux25$enable_server = xyesyes ; then
 275                 AC_MSG_ERROR([ldiskfs is required for 2.6-based servers.])
 276         fi
 277
 278         # --- Check that ext3 and ext3 xattr are enabled in the kernel
 279         LC_CONFIG_EXT3([],[
 280                 AC_MSG_ERROR([Lustre requires that ext3 is enabled in the kernel])
 281         ],[
 282                 AC_MSG_WARN([Lustre requires that extended attributes for ext3 are enabled in the kernel])
 283                 AC_MSG_WARN([This build may fail.])
 284         ])
 285 else
 286         # ldiskfs is enabled
 287         LB_DEFINE_LDISKFS_OPTIONS
 288 fi #ldiskfs
 289
 290 AC_MSG_CHECKING([which backing filesystem to use])
 291 AC_MSG_RESULT([$BACKINGFS])
 292 AC_SUBST(BACKINGFS)
 293 ])
 294
 295 #
 296 # LC_CONFIG_PINGER
 297 #
 298 # the pinger is temporary, until we have the recovery node in place
 299 #
 300 AC_DEFUN([LC_CONFIG_PINGER],
 301 [AC_MSG_CHECKING([whether to enable pinger support])
 302 AC_ARG_ENABLE([pinger],
 303         AC_HELP_STRING([--disable-pinger],
 304                         [disable recovery pinger support]),
 305         [],[enable_pinger='yes'])
 306 AC_MSG_RESULT([$enable_pinger])
 307 if test x$enable_pinger != xno ; then
 308   AC_DEFINE(ENABLE_PINGER, 1, Use the Pinger)
 309 fi
 310 ])
 311
 312 #
 313 # LC_CONFIG_CHECKSUM
 314 #
 315 # do checksum of bulk data between client and OST
 316 #
 317 AC_DEFUN([LC_CONFIG_CHECKSUM],
 318 [AC_MSG_CHECKING([whether to enable data checksum support])
 319 AC_ARG_ENABLE([checksum],
 320        AC_HELP_STRING([--disable-checksum],
 321                        [disable data checksum support]),
 322        [],[enable_checksum='yes'])
 323 AC_MSG_RESULT([$enable_checksum])
 324 if test x$enable_checksum != xno ; then
 325   AC_DEFINE(ENABLE_CHECKSUM, 1, do data checksums)
 326 fi
 327 ])
 328
 329 #
 330 # LC_CONFIG_HEALTH_CHECK_WRITE
 331 #
 332 # Turn off the actual write to the disk
 333 #
 334 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE],
 335 [AC_MSG_CHECKING([whether to enable a write with the health check])
 336 AC_ARG_ENABLE([health_write],
 337         AC_HELP_STRING([--enable-health_write],
 338                         [enable disk writes when doing health check]),
 339         [],[enable_health_write='no'])
 340 AC_MSG_RESULT([$enable_health_write])
 341 if test x$enable_health_write != xno ; then
 342   AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, Write when Checking Health)
 343 fi
 344 ])
 345
 346 #
 347 # LC_CONFIG_LIBLUSTRE_RECOVERY
 348 #
 349 AC_DEFUN([LC_CONFIG_LIBLUSTRE_RECOVERY],
 350 [AC_MSG_CHECKING([whether to enable liblustre recovery support])
 351 AC_ARG_ENABLE([liblustre-recovery],
 352         AC_HELP_STRING([--disable-liblustre-recovery],
 353                         [disable liblustre recovery support]),
 354         [],[enable_liblustre_recovery='yes'])
 355 AC_MSG_RESULT([$enable_liblustre_recovery])
 356 if test x$enable_liblustre_recovery != xno ; then
 357   AC_DEFINE(ENABLE_LIBLUSTRE_RECOVERY, 1, Liblustre Can Recover)
 358 fi
 359 ])
 360
 361 #
 362 # LC_CONFIG_OBD_BUFFER_SIZE
 363 #
 364 # the maximum buffer size of lctl ioctls
 365 #
 366 AC_DEFUN([LC_CONFIG_OBD_BUFFER_SIZE],
 367 [AC_MSG_CHECKING([maximum OBD ioctl size])
 368 AC_ARG_WITH([obd-buffer-size],
 369         AC_HELP_STRING([--with-obd-buffer-size=[size]],
 370                         [set lctl ioctl maximum bytes (default=8192)]),
 371         [
 372                 OBD_BUFFER_SIZE=$with_obd_buffer_size
 373         ],[
 374                 OBD_BUFFER_SIZE=8192
 375         ])
 376 AC_MSG_RESULT([$OBD_BUFFER_SIZE bytes])
 377 AC_DEFINE_UNQUOTED(OBD_MAX_IOCTL_BUFFER, $OBD_BUFFER_SIZE, [IOCTL Buffer Size])
 378 ])
 379
 380 #
 381 # LC_STRUCT_STATFS
 382 #
 383 # AIX does not have statfs.f_namelen
 384 #
 385 AC_DEFUN([LC_STRUCT_STATFS],
 386 [AC_MSG_CHECKING([if struct statfs has a f_namelen field])
 387 LB_LINUX_TRY_COMPILE([
 388         #include <linux/vfs.h>
 389 ],[
 390         struct statfs sfs;
 391         sfs.f_namelen = 1;
 392 ],[
 393         AC_MSG_RESULT([yes])
 394         AC_DEFINE(HAVE_STATFS_NAMELEN, 1, [struct statfs has a namelen field])
 395 ],[
 396         AC_MSG_RESULT([no])
 397 ])
 398 ])
 399
 400 #
 401 # LC_READLINK_SSIZE_T
 402 #
 403 AC_DEFUN([LC_READLINK_SSIZE_T],
 404 [AC_MSG_CHECKING([if readlink returns ssize_t])
 405 AC_TRY_COMPILE([
 406         #include <unistd.h>
 407 ],[
 408         ssize_t readlink(const char *, char *, size_t);
 409 ],[
 410         AC_MSG_RESULT([yes])
 411         AC_DEFINE(HAVE_POSIX_1003_READLINK, 1, [readlink returns ssize_t])
 412 ],[
 413         AC_MSG_RESULT([no])
 414 ])
 415 ])
 416
 417 AC_DEFUN([LC_FUNC_PAGE_MAPPED],
 418 [AC_MSG_CHECKING([if kernel offers page_mapped])
 419 LB_LINUX_TRY_COMPILE([
 420         #include <linux/mm.h>
 421 ],[
 422         page_mapped(NULL);
 423 ],[
 424         AC_MSG_RESULT([yes])
 425         AC_DEFINE(HAVE_PAGE_MAPPED, 1, [page_mapped found])
 426 ],[
 427         AC_MSG_RESULT([no])
 428 ])
 429 ])
 430
 431 AC_DEFUN([LC_STRUCT_FILE_OPS_UNLOCKED_IOCTL],
 432 [AC_MSG_CHECKING([if struct file_operations has an unlocked_ioctl field])
 433 LB_LINUX_TRY_COMPILE([
 434         #include <linux/fs.h>
 435 ],[
 436         struct file_operations fops;
 437         &fops.unlocked_ioctl;
 438 ],[
 439         AC_MSG_RESULT([yes])
 440         AC_DEFINE(HAVE_UNLOCKED_IOCTL, 1, [struct file_operations has an unlock ed_ioctl field])
 441 ],[
 442         AC_MSG_RESULT([no])
 443 ])
 444 ])
 445
 446 AC_DEFUN([LC_FILEMAP_POPULATE],
 447 [AC_MSG_CHECKING([for exported filemap_populate])
 448 LB_LINUX_TRY_COMPILE([
 449         #include <asm/page.h>
 450         #include <linux/mm.h>
 451 ],[
 452        filemap_populate(NULL, 0, 0, __pgprot(0), 0, 0);
 453 ],[
 454         AC_MSG_RESULT([yes])
 455         AC_DEFINE(HAVE_FILEMAP_POPULATE, 1, [Kernel exports filemap_populate])
 456 ],[
 457         AC_MSG_RESULT([no])
 458 ])
 459 ])
 460
 461 AC_DEFUN([LC_D_ADD_UNIQUE],
 462 [AC_MSG_CHECKING([for d_add_unique])
 463 LB_LINUX_TRY_COMPILE([
 464         #include <linux/dcache.h>
 465 ],[
 466        d_add_unique(NULL, NULL);
 467 ],[
 468         AC_MSG_RESULT([yes])
 469         AC_DEFINE(HAVE_D_ADD_UNIQUE, 1, [Kernel has d_add_unique])
 470 ],[
 471         AC_MSG_RESULT([no])
 472 ])
 473 ])
 474
 475 AC_DEFUN([LC_BIT_SPINLOCK_H],
 476 [LB_CHECK_FILE([$LINUX/include/linux/bit_spinlock.h],[
 477         AC_MSG_CHECKING([if bit_spinlock.h can be compiled])
 478         LB_LINUX_TRY_COMPILE([
 479                 #include <asm/processor.h>
 480                 #include <linux/spinlock.h>
 481                 #include <linux/bit_spinlock.h>
 482         ],[],[
 483                 AC_MSG_RESULT([yes])
 484                 AC_DEFINE(HAVE_BIT_SPINLOCK_H, 1, [Kernel has bit_spinlock.h])
 485         ],[
 486                 AC_MSG_RESULT([no])
 487         ])
 488 ],
 489 [])
 490 ])
 491
 492 #
 493 # LC_POSIX_ACL_XATTR
 494 #
 495 # If we have xattr_acl.h
 496 #
 497 AC_DEFUN([LC_XATTR_ACL],
 498 [LB_CHECK_FILE([$LINUX/include/linux/xattr_acl.h],[
 499         AC_MSG_CHECKING([if xattr_acl.h can be compiled])
 500         LB_LINUX_TRY_COMPILE([
 501                 #include <linux/xattr_acl.h>
 502         ],[],[
 503                 AC_MSG_RESULT([yes])
 504                 AC_DEFINE(HAVE_XATTR_ACL, 1, [Kernel has xattr_acl])
 505         ],[
 506                 AC_MSG_RESULT([no])
 507         ])
 508 ],
 509 [])
 510 ])
 511
 512 #
 513 # LC_LINUX_FIEMAP_H
 514 #
 515 # If we have fiemap.h
 516 # after 2.6.27 use fiemap.h in include/linux
 517 #
 518 AC_DEFUN([LC_LINUX_FIEMAP_H],
 519 [LB_CHECK_FILE([$LINUX/include/linux/fiemap.h],[
 520         AC_MSG_CHECKING([if fiemap.h can be compiled])
 521         LB_LINUX_TRY_COMPILE([
 522                 #include <linux/fiemap.h>
 523         ],[],[
 524                 AC_MSG_RESULT([yes])
 525                 AC_DEFINE(HAVE_LINUX_FIEMAP_H, 1, [Kernel has fiemap.h])
 526         ],[
 527                 AC_MSG_RESULT([no])
 528         ])
 529 ],
 530 [])
 531 ])
 532
 533
 534 AC_DEFUN([LC_STRUCT_INTENT_FILE],
 535 [AC_MSG_CHECKING([if struct open_intent has a file field])
 536 LB_LINUX_TRY_COMPILE([
 537         #include <linux/fs.h>
 538         #include <linux/namei.h>
 539 ],[
 540         struct open_intent intent;
 541         &intent.file;
 542 ],[
 543         AC_MSG_RESULT([yes])
 544         AC_DEFINE(HAVE_FILE_IN_STRUCT_INTENT, 1, [struct open_intent has a file field])
 545 ],[
 546         AC_MSG_RESULT([no])
 547 ])
 548 ])
 549
 550
 551 AC_DEFUN([LC_POSIX_ACL_XATTR_H],
 552 [LB_CHECK_FILE([$LINUX/include/linux/posix_acl_xattr.h],[
 553         AC_MSG_CHECKING([if linux/posix_acl_xattr.h can be compiled])
 554         LB_LINUX_TRY_COMPILE([
 555                 #include <linux/posix_acl_xattr.h>
 556         ],[],[
 557                 AC_MSG_RESULT([yes])
 558                 AC_DEFINE(HAVE_LINUX_POSIX_ACL_XATTR_H, 1, [linux/posix_acl_xattr.h found])
 559
 560         ],[
 561                 AC_MSG_RESULT([no])
 562         ])
 563 $1
 564 ],[
 565 AC_MSG_RESULT([no])
 566 ])
 567 ])
 568
 569 #
 570 # LC_EXPORT___IGET
 571 # starting from 2.6.19 linux kernel exports __iget()
 572 #
 573 AC_DEFUN([LC_EXPORT___IGET],
 574 [LB_CHECK_SYMBOL_EXPORT([__iget],
 575 [fs/inode.c],[
 576         AC_DEFINE(HAVE_EXPORT___IGET, 1, [kernel exports __iget])
 577 ],[
 578 ])
 579 ])
 580
 581 AC_DEFUN([LC_LUSTRE_VERSION_H],
 582 [LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
 583         rm -f "$LUSTRE/include/linux/lustre_version.h"
 584 ],[
 585         touch "$LUSTRE/include/linux/lustre_version.h"
 586         if test x$enable_server = xyes ; then
 587                 AC_MSG_WARN([Unpatched kernel detected.])
 588                 AC_MSG_WARN([Lustre servers cannot be built with an unpatched kernel;])
 589                 AC_MSG_WARN([disabling server build])
 590                 enable_server='no'
 591         fi
 592 ])
 593 ])
 594
 595 #
 596 # LC_CAPA_CRYPTO
 597 #
 598 AC_DEFUN([LC_CAPA_CRYPTO],
 599 [LB_LINUX_CONFIG_IM([CRYPTO],[],[
 600         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])
 601 ])
 602 LB_LINUX_CONFIG_IM([CRYPTO_HMAC],[],[
 603         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])
 604 ])
 605 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],[
 606         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])
 607 ])
 608 ])
 609
 610 #
 611 # LC_CONFIG_RMTCLIENT
 612 #
 613 dnl FIXME
 614 dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
 615 dnl FIXME
 616 AC_DEFUN([LC_CONFIG_RMTCLIENT],
 617 [LB_LINUX_CONFIG_IM([CRYPTO_AES],[],[
 618         AC_MSG_WARN([Lustre remote client require that CONFIG_CRYPTO_AES is enabled in your kernel.])
 619 ])
 620 ])
 621
 622 AC_DEFUN([LC_SUNRPC_CACHE],
 623 [AC_MSG_CHECKING([if sunrpc struct cache_head uses kref])
 624 LB_LINUX_TRY_COMPILE([
 625         #include <linux/sunrpc/cache.h>
 626 ],[
 627         struct cache_head ch;
 628         &ch.ref.refcount;
 629 ],[
 630         AC_MSG_RESULT([yes])
 631         AC_DEFINE(HAVE_SUNRPC_CACHE_V2, 1, [sunrpc cache facility v2])
 632 ],[
 633         AC_MSG_RESULT([no])
 634 ])
 635 ])
 636
 637 AC_DEFUN([LC_CONFIG_SUNRPC],
 638 [LB_LINUX_CONFIG_IM([SUNRPC],[],
 639                     [AC_MSG_ERROR([kernel SUNRPC support is required by using GSS.])])
 640  LC_SUNRPC_CACHE
 641 ])
 642
 643 #
 644 # LC_CONFIG_GSS_KEYRING (default enabled, if gss is enabled)
 645 #
 646 AC_DEFUN([LC_CONFIG_GSS_KEYRING],
 647 [AC_MSG_CHECKING([whether to enable gss keyring backend])
 648  AC_ARG_ENABLE([gss_keyring],
 649                [AC_HELP_STRING([--disable-gss-keyring],
 650                                [disable gss keyring backend])],
 651                [],[enable_gss_keyring='yes'])
 652  AC_MSG_RESULT([$enable_gss_keyring])
 653
 654  if test x$enable_gss_keyring != xno; then
 655         LB_LINUX_CONFIG_IM([KEYS],[],
 656                            [AC_MSG_ERROR([GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.])])
 657
 658         AC_CHECK_LIB([keyutils], [keyctl_search], [],
 659                      [AC_MSG_ERROR([libkeyutils is not found, which is required by gss keyring backend])],)
 660
 661         AC_DEFINE([HAVE_GSS_KEYRING], [1],
 662                   [Define this if you enable gss keyring backend])
 663  fi
 664 ])
 665
 666 #
 667 # LC_CONFIG_GSS (default disabled)
 668 #
 669 # Build gss and related tools of Lustre. Currently both kernel and user space
 670 # parts are depend on linux platform.
 671 #
 672 AC_DEFUN([LC_CONFIG_GSS],
 673 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
 674  AC_ARG_ENABLE([gss],
 675                [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
 676                [],[enable_gss='no'])
 677  AC_MSG_RESULT([$enable_gss])
 678
 679  if test x$enable_gss == xyes; then
 680         LC_CONFIG_GSS_KEYRING
 681         LC_CONFIG_SUNRPC
 682
 683         AC_DEFINE([HAVE_GSS], [1], [Define this if you enable gss])
 684
 685         LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
 686                            [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
 687         LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
 688                            [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
 689         LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
 690                            [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
 691         LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
 692                            [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
 693
 694         AC_CHECK_LIB([gssapi], [gss_init_sec_context],
 695                      [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"],
 696                      [AC_CHECK_LIB([gssglue], [gss_init_sec_context],
 697                                    [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue"],
 698                                    [AC_MSG_ERROR([libgssapi or libgssglue is not found, which is required by GSS.])])],)
 699
 700         AC_SUBST(GSSAPI_LIBS)
 701
 702         AC_KERBEROS_V5
 703  fi
 704 ])
 705
 706 # LC_FUNC_MS_FLOCK_LOCK
 707 #
 708 # SLES9 kernel has MS_FLOCK_LOCK sb flag
 709 #
 710 AC_DEFUN([LC_FUNC_MS_FLOCK_LOCK],
 711 [AC_MSG_CHECKING([if kernel has MS_FLOCK_LOCK sb flag])
 712 LB_LINUX_TRY_COMPILE([
 713         #include <linux/fs.h>
 714 ],[
 715         int flags = MS_FLOCK_LOCK;
 716 ],[
 717         AC_DEFINE(HAVE_MS_FLOCK_LOCK, 1,
 718                 [kernel has MS_FLOCK_LOCK flag])
 719         AC_MSG_RESULT([yes])
 720 ],[
 721         AC_MSG_RESULT([no])
 722 ])
 723 ])
 724
 725 #
 726 # LC_FUNC_HAVE_CAN_SLEEP_ARG
 727 #
 728 # SLES9 kernel has third arg can_sleep
 729 # in fs/locks.c: flock_lock_file_wait()
 730 #
 731 AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG],
 732 [AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
 733 LB_LINUX_TRY_COMPILE([
 734         #include <linux/fs.h>
 735 ],[
 736         int cansleep;
 737         struct file *file;
 738         struct file_lock *file_lock;
 739         flock_lock_file_wait(file, file_lock, cansleep);
 740 ],[
 741         AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1,
 742                 [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
 743         AC_MSG_RESULT([yes])
 744 ],[
 745         AC_MSG_RESULT([no])
 746 ])
 747 ])
 748
 749 #
 750 # LC_FUNC_F_OP_FLOCK
 751 #
 752 # rhel4.2 kernel has f_op->flock field
 753 #
 754 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
 755 [AC_MSG_CHECKING([if struct file_operations has flock field])
 756 LB_LINUX_TRY_COMPILE([
 757         #include <linux/fs.h>
 758 ],[
 759         struct file_operations ll_file_operations_flock;
 760         ll_file_operations_flock.flock = NULL;
 761 ],[
 762         AC_DEFINE(HAVE_F_OP_FLOCK, 1,
 763                 [struct file_operations has flock field])
 764         AC_MSG_RESULT([yes])
 765 ],[
 766         AC_MSG_RESULT([no])
 767 ])
 768 ])
 769
 770 #
 771 # LC_TASK_PPTR
 772 #
 773 # task struct has p_pptr instead of parent
 774 #
 775 AC_DEFUN([LC_TASK_PPTR],
 776 [AC_MSG_CHECKING([task p_pptr found])
 777 LB_LINUX_TRY_COMPILE([
 778         #include <linux/sched.h>
 779 ],[
 780         struct task_struct *p;
 781
 782         p = p->p_pptr;
 783 ],[
 784         AC_MSG_RESULT([yes])
 785         AC_DEFINE(HAVE_TASK_PPTR, 1, [task p_pptr found])
 786 ],[
 787         AC_MSG_RESULT([no])
 788 ])
 789 ])
 790
 791 #
 792 # LC_FUNC_F_OP_FLOCK
 793 #
 794 # rhel4.2 kernel has f_op->flock field
 795 #
 796 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
 797 [AC_MSG_CHECKING([if struct file_operations has flock field])
 798 LB_LINUX_TRY_COMPILE([
 799         #include <linux/fs.h>
 800 ],[
 801         struct file_operations ll_file_operations_flock;
 802         ll_file_operations_flock.flock = NULL;
 803 ],[
 804         AC_DEFINE(HAVE_F_OP_FLOCK, 1,
 805                 [struct file_operations has flock field])
 806         AC_MSG_RESULT([yes])
 807 ],[
 808         AC_MSG_RESULT([no])
 809 ])
 810 ])
 811
 812 # LC_INODE_I_MUTEX
 813 # after 2.6.15 inode have i_mutex intead of i_sem
 814 AC_DEFUN([LC_INODE_I_MUTEX],
 815 [AC_MSG_CHECKING([if inode has i_mutex ])
 816 LB_LINUX_TRY_COMPILE([
 817         #include <linux/mutex.h>
 818         #include <linux/fs.h>
 819         #undef i_mutex
 820 ],[
 821         struct inode i;
 822
 823         mutex_unlock(&i.i_mutex);
 824 ],[
 825         AC_MSG_RESULT(yes)
 826         AC_DEFINE(HAVE_INODE_I_MUTEX, 1,
 827                 [after 2.6.15 inode have i_mutex intead of i_sem])
 828 ],[
 829         AC_MSG_RESULT(no)
 830 ])
 831 ])
 832
 833 # LC_SEQ_LOCK
 834 # after 2.6.18 seq_file has lock intead of sem
 835 AC_DEFUN([LC_SEQ_LOCK],
 836 [AC_MSG_CHECKING([if struct seq_file has lock field])
 837 LB_LINUX_TRY_COMPILE([
 838         #include <linux/seq_file.h>
 839 ],[
 840         struct seq_file seq;
 841
 842         mutex_unlock(&seq.lock);
 843 ],[
 844         AC_MSG_RESULT(yes)
 845         AC_DEFINE(HAVE_SEQ_LOCK, 1,
 846                 [after 2.6.18 seq_file has lock intead of sem])
 847 ],[
 848         AC_MSG_RESULT(NO)
 849 ])
 850 ])
 851
 852 # LC_DQUOTOFF_MUTEX
 853 # after 2.6.17 dquote use mutex instead if semaphore
 854 AC_DEFUN([LC_DQUOTOFF_MUTEX],
 855 [AC_MSG_CHECKING([use dqonoff_mutex])
 856 LB_LINUX_TRY_COMPILE([
 857         #include <linux/mutex.h>
 858         #include <linux/fs.h>
 859         #include <linux/quota.h>
 860 ],[
 861         struct quota_info dq;
 862
 863         mutex_unlock(&dq.dqonoff_mutex);
 864 ],[
 865         AC_MSG_RESULT(yes)
 866         AC_DEFINE(HAVE_DQUOTOFF_MUTEX, 1,
 867                 [after 2.6.17 dquote use mutex instead if semaphore])
 868 ],[
 869         AC_MSG_RESULT(no)
 870 ])
 871 ])
 872
 873 #
 874 # LC_STATFS_DENTRY_PARAM
 875 # starting from 2.6.18 linux kernel uses dentry instead of
 876 # super_block for first vfs_statfs argument
 877 #
 878 AC_DEFUN([LC_STATFS_DENTRY_PARAM],
 879 [AC_MSG_CHECKING([first vfs_statfs parameter is dentry])
 880 LB_LINUX_TRY_COMPILE([
 881         #include <linux/fs.h>
 882 ],[
 883         int vfs_statfs(struct dentry *, struct kstatfs *);
 884 ],[
 885         AC_DEFINE(HAVE_STATFS_DENTRY_PARAM, 1,
 886                 [first parameter of vfs_statfs is dentry])
 887         AC_MSG_RESULT([yes])
 888 ],[
 889         AC_MSG_RESULT([no])
 890 ])
 891 ])
 892
 893 #
 894 # LC_VFS_KERN_MOUNT
 895 # starting from 2.6.18 kernel don't export do_kern_mount
 896 # and want to use vfs_kern_mount instead.
 897 #
 898 AC_DEFUN([LC_VFS_KERN_MOUNT],
 899 [AC_MSG_CHECKING([vfs_kern_mount exist in kernel])
 900 LB_LINUX_TRY_COMPILE([
 901         #include <linux/mount.h>
 902 ],[
 903         vfs_kern_mount(NULL, 0, NULL, NULL);
 904 ],[
 905         AC_DEFINE(HAVE_VFS_KERN_MOUNT, 1,
 906                 [vfs_kern_mount exist in kernel])
 907         AC_MSG_RESULT([yes])
 908 ],[
 909         AC_MSG_RESULT([no])
 910 ])
 911 ])
 912
 913 #
 914 # LC_INVALIDATEPAGE_RETURN_INT
 915 # more 2.6 api changes.  return type for the invalidatepage
 916 # address_space_operation is 'void' in new kernels but 'int' in old
 917 #
 918 AC_DEFUN([LC_INVALIDATEPAGE_RETURN_INT],
 919 [AC_MSG_CHECKING([invalidatepage has return int])
 920 LB_LINUX_TRY_COMPILE([
 921         #include <linux/buffer_head.h>
 922 ],[
 923         int rc = block_invalidatepage(NULL, 0);
 924 ],[
 925         AC_MSG_RESULT(yes)
 926         AC_DEFINE(HAVE_INVALIDATEPAGE_RETURN_INT, 1,
 927                 [Define if return type of invalidatepage should be int])
 928 ],[
 929         AC_MSG_RESULT(no)
 930 ])
 931 ])
 932
 933 # LC_UMOUNTBEGIN_HAS_VFSMOUNT
 934 # more 2.6 API changes. 2.6.18 umount_begin has different parameters
 935 AC_DEFUN([LC_UMOUNTBEGIN_HAS_VFSMOUNT],
 936 [AC_MSG_CHECKING([if umount_begin needs vfsmount parameter instead of super_block])
 937 tmp_flags="$EXTRA_KCFLAGS"
 938 EXTRA_KCFLAGS="-Werror"
 939 LB_LINUX_TRY_COMPILE([
 940         #include <linux/fs.h>
 941
 942         struct vfsmount;
 943         static void cfg_umount_begin (struct vfsmount *v, int flags)
 944         {
 945                 ;
 946         }
 947
 948         static struct super_operations cfg_super_operations = {
 949                 .umount_begin   = cfg_umount_begin,
 950         };
 951 ],[
 952         cfg_super_operations.umount_begin(NULL,0);
 953 ],[
 954         AC_MSG_RESULT(yes)
 955         AC_DEFINE(HAVE_UMOUNTBEGIN_VFSMOUNT, 1,
 956                 [Define umount_begin need second argument])
 957 ],[
 958         AC_MSG_RESULT(no)
 959 ])
 960 EXTRA_KCFLAGS="$tmp_flags"
 961 ])
 962
 963 # inode have i_private field since 2.6.17
 964 AC_DEFUN([LC_INODE_IPRIVATE],
 965 [AC_MSG_CHECKING([if inode has a i_private field])
 966 LB_LINUX_TRY_COMPILE([
 967 #include <linux/fs.h>
 968 ],[
 969         struct inode i;
 970         i.i_private = NULL;
 971 ],[
 972         AC_MSG_RESULT(yes)
 973         AC_DEFINE(HAVE_INODE_IPRIVATE, 1,
 974                 [struct inode has i_private field])
 975 ],[
 976         AC_MSG_RESULT(no)
 977 ])
 978 ])
 979
 980 # 2.6.19 API changes
 981 # inode don't have i_blksize field
 982 AC_DEFUN([LC_INODE_BLKSIZE],
 983 [AC_MSG_CHECKING([inode has i_blksize field])
 984 LB_LINUX_TRY_COMPILE([
 985 #include <linux/fs.h>
 986 ],[
 987         struct inode i;
 988         i.i_blksize = 0;
 989 ],[
 990         AC_MSG_RESULT(yes)
 991         AC_DEFINE(HAVE_INODE_BLKSIZE, 1,
 992                 [struct inode has i_blksize field])
 993 ],[
 994         AC_MSG_RESULT(no)
 995 ])
 996 ])
 997
 998 # LC_VFS_READDIR_U64_INO
 999 # 2.6.19 use u64 for inode number instead of inode_t
1000 AC_DEFUN([LC_VFS_READDIR_U64_INO],
1001 [AC_MSG_CHECKING([check vfs_readdir need 64bit inode number])
1002 tmp_flags="$EXTRA_KCFLAGS"
1003 EXTRA_KCFLAGS="-Werror"
1004 LB_LINUX_TRY_COMPILE([
1005 #include <linux/fs.h>
1006         int fillonedir(void * __buf, const char * name, int namlen, loff_t offset,
1007                       u64 ino, unsigned int d_type)
1008         {
1009                 return 0;
1010         }
1011 ],[
1012         filldir_t filter;
1013
1014         filter = fillonedir;
1015         return 1;
1016 ],[
1017         AC_MSG_RESULT(yes)
1018         AC_DEFINE(HAVE_VFS_READDIR_U64_INO, 1,
1019                 [if vfs_readdir need 64bit inode number])
1020 ],[
1021         AC_MSG_RESULT(no)
1022 ])
1023 EXTRA_KCFLAGS="$tmp_flags"
1024 ])
1025
1026 # LC_FILE_WRITEV
1027 # 2.6.19 replaced writev with aio_write
1028 AC_DEFUN([LC_FILE_WRITEV],
1029 [AC_MSG_CHECKING([writev in fops])
1030 LB_LINUX_TRY_COMPILE([
1031         #include <linux/fs.h>
1032 ],[
1033         struct file_operations *fops = NULL;
1034         fops->writev = NULL;
1035 ],[
1036         AC_MSG_RESULT(yes)
1037         AC_DEFINE(HAVE_FILE_WRITEV, 1,
1038                 [use fops->writev])
1039 ],[
1040         AC_MSG_RESULT(no)
1041 ])
1042 ])
1043
1044 # LC_GENERIC_FILE_READ
1045 # 2.6.19 replaced readv with aio_read
1046 AC_DEFUN([LC_FILE_READV],
1047 [AC_MSG_CHECKING([readv in fops])
1048 LB_LINUX_TRY_COMPILE([
1049         #include <linux/fs.h>
1050 ],[
1051         struct file_operations *fops = NULL;
1052         fops->readv = NULL;
1053 ],[
1054         AC_MSG_RESULT(yes)
1055         AC_DEFINE(HAVE_FILE_READV, 1,
1056                 [use fops->readv])
1057 ],[
1058         AC_MSG_RESULT(no)
1059 ])
1060 ])
1061
1062 # LC_NR_PAGECACHE
1063 # 2.6.18 don't export nr_pagecahe
1064 AC_DEFUN([LC_NR_PAGECACHE],
1065 [AC_MSG_CHECKING([kernel export nr_pagecache])
1066 LB_LINUX_TRY_COMPILE([
1067         #include <linux/pagemap.h>
1068 ],[
1069         return atomic_read(&nr_pagecache);
1070 ],[
1071         AC_MSG_RESULT(yes)
1072         AC_DEFINE(HAVE_NR_PAGECACHE, 1,
1073                 [is kernel export nr_pagecache])
1074 ],[
1075         AC_MSG_RESULT(no)
1076 ])
1077 ])
1078
1079 # LC_CANCEL_DIRTY_PAGE
1080 # 2.6.20 introduse cancel_dirty_page instead of
1081 # clear_page_dirty.
1082 AC_DEFUN([LC_CANCEL_DIRTY_PAGE],
1083 [AC_MSG_CHECKING([kernel has cancel_dirty_page])
1084 LB_LINUX_TRY_COMPILE([
1085         #include <linux/mm.h>
1086         #include <linux/page-flags.h>
1087 ],[
1088         cancel_dirty_page(NULL, 0);
1089 ],[
1090         AC_MSG_RESULT(yes)
1091         AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
1092                   [kernel has cancel_dirty_page instead of clear_page_dirty])
1093 ],[
1094         AC_MSG_RESULT(no)
1095 ])
1096 ])
1097
1098 #
1099 # LC_PAGE_CONSTANT
1100 #
1101 # In order to support raid5 zerocopy patch, we have to patch the kernel to make
1102 # it support constant page, which means the page won't be modified during the
1103 # IO.
1104 #
1105 AC_DEFUN([LC_PAGE_CONSTANT],
1106 [AC_MSG_CHECKING([if kernel have PageConstant defined])
1107 LB_LINUX_TRY_COMPILE([
1108         #include <linux/mm.h>
1109         #include <linux/page-flags.h>
1110 ],[
1111         #ifndef PG_constant
1112         #error "Have no raid5 zcopy patch"
1113         #endif
1114 ],[
1115         AC_MSG_RESULT(yes)
1116         AC_DEFINE(HAVE_PAGE_CONSTANT, 1, [kernel have PageConstant supported])
1117 ],[
1118         AC_MSG_RESULT(no);
1119 ])
1120 ])
1121
1122 # RHEL5 in FS-cache patch rename PG_checked flag
1123 # into PG_fs_misc
1124 AC_DEFUN([LC_PG_FS_MISC],
1125 [AC_MSG_CHECKING([kernel has PG_fs_misc])
1126 LB_LINUX_TRY_COMPILE([
1127         #include <linux/mm.h>
1128         #include <linux/page-flags.h>
1129 ],[
1130         #ifndef PG_fs_misc
1131         #error PG_fs_misc not defined in kernel
1132         #endif
1133 ],[
1134         AC_MSG_RESULT(yes)
1135         AC_DEFINE(HAVE_PG_FS_MISC, 1,
1136                   [is kernel have PG_fs_misc])
1137 ],[
1138         AC_MSG_RESULT(no)
1139 ])
1140 ])
1141
1142 # RHEL5 PageChecked and SetPageChecked defined
1143 AC_DEFUN([LC_PAGE_CHECKED],
1144 [AC_MSG_CHECKING([kernel has PageChecked and SetPageChecked])
1145 LB_LINUX_TRY_COMPILE([
1146         #include <linux/mm.h>
1147         #include <linux/page-flags.h>
1148 ],[
1149         #ifndef PageChecked
1150         #error PageChecked not defined in kernel
1151         #endif
1152         #ifndef SetPageChecked
1153         #error SetPageChecked not defined in kernel
1154         #endif
1155 ],[
1156         AC_MSG_RESULT(yes)
1157         AC_DEFINE(HAVE_PAGE_CHECKED, 1,
1158                   [does kernel have PageChecked and SetPageChecked])
1159 ],[
1160         AC_MSG_RESULT(no)
1161 ])
1162 ])
1163
1164 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE],
1165 [LB_CHECK_SYMBOL_EXPORT([truncate_complete_page],
1166 [mm/truncate.c],[
1167 AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
1168             [kernel export truncate_complete_page])
1169 ],[
1170 ])
1171 ])
1172
1173 AC_DEFUN([LC_EXPORT_TRUNCATE_RANGE],
1174 [LB_CHECK_SYMBOL_EXPORT([truncate_inode_pages_range],
1175 [mm/truncate.c],[
1176 AC_DEFINE(HAVE_TRUNCATE_RANGE, 1,
1177             [kernel export truncate_inode_pages_range])
1178 ],[
1179 ])
1180 ])
1181
1182 AC_DEFUN([LC_EXPORT_D_REHASH_COND],
1183 [LB_CHECK_SYMBOL_EXPORT([d_rehash_cond],
1184 [fs/dcache.c],[
1185 AC_DEFINE(HAVE_D_REHASH_COND, 1,
1186             [d_rehash_cond is exported by the kernel])
1187 ],[
1188 ])
1189 ])
1190
1191 AC_DEFUN([LC_EXPORT___D_REHASH],
1192 [LB_CHECK_SYMBOL_EXPORT([__d_rehash],
1193 [fs/dcache.c],[
1194 AC_DEFINE(HAVE___D_REHASH, 1,
1195             [__d_rehash is exported by the kernel])
1196 ],[
1197 ])
1198 ])
1199
1200 AC_DEFUN([LC_EXPORT_D_MOVE_LOCKED],
1201 [LB_CHECK_SYMBOL_EXPORT([d_move_locked],
1202 [fs/dcache.c],[
1203 AC_DEFINE(HAVE_D_MOVE_LOCKED, 1,
1204             [d_move_locked is exported by the kernel])
1205 ],[
1206 ])
1207 ])
1208
1209 AC_DEFUN([LC_EXPORT___D_MOVE],
1210 [LB_CHECK_SYMBOL_EXPORT([__d_move],
1211 [fs/dcache.c],[
1212 AC_DEFINE(HAVE___D_MOVE, 1,
1213             [__d_move is exported by the kernel])
1214 ],[
1215 ])
1216 ])
1217
1218 #
1219 # LC_EXPORT_INVALIDATE_MAPPING_PAGES
1220 #
1221 # SLES9, RHEL4, RHEL5, vanilla 2.6.24 export invalidate_mapping_pages() but
1222 # SLES10 2.6.16 does not, for some reason.  For filter cache invalidation.
1223 #
1224 AC_DEFUN([LC_EXPORT_INVALIDATE_MAPPING_PAGES],
1225     [LB_CHECK_SYMBOL_EXPORT([invalidate_mapping_pages], [mm/truncate.c], [
1226          AC_DEFINE(HAVE_INVALIDATE_MAPPING_PAGES, 1,
1227                         [exported invalidate_mapping_pages])],
1228     [LB_CHECK_SYMBOL_EXPORT([invalidate_inode_pages], [mm/truncate.c], [
1229          AC_DEFINE(HAVE_INVALIDATE_INODE_PAGES, 1,
1230                         [exported invalidate_inode_pages])], [
1231        AC_MSG_ERROR([no way to invalidate pages])
1232   ])
1233     ],[])
1234 ])
1235
1236 #
1237 # LC_EXPORT_FILEMAP_FDATASYNC_RANGE
1238 #
1239 # No standard kernels export this
1240 #
1241 AC_DEFUN([LC_EXPORT_FILEMAP_FDATAWRITE_RANGE],
1242 [LB_CHECK_SYMBOL_EXPORT([filemap_fdatawrite_range],
1243 [mm/filemap.c],[
1244 AC_DEFINE(HAVE_FILEMAP_FDATAWRITE_RANGE, 1,
1245             [filemap_fdatawrite_range is exported by the kernel])
1246 ],[
1247 ])
1248 ])
1249
1250 # The actual symbol exported varies among architectures, so we need
1251 # to check many symbols (but only in the current architecture.)  No
1252 # matter what symbol is exported, the kernel #defines node_to_cpumask
1253 # to the appropriate function and that's what we use.
1254 AC_DEFUN([LC_EXPORT_NODE_TO_CPUMASK],
1255          [LB_CHECK_SYMBOL_EXPORT([node_to_cpumask],
1256                                  [arch/$LINUX_ARCH/mm/numa.c],
1257                                  [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1258                                             [node_to_cpumask is exported by
1259                                              the kernel])]) # x86_64
1260           LB_CHECK_SYMBOL_EXPORT([node_to_cpu_mask],
1261                                  [arch/$LINUX_ARCH/kernel/smpboot.c],
1262                                  [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1263                                             [node_to_cpumask is exported by
1264                                              the kernel])]) # ia64
1265           LB_CHECK_SYMBOL_EXPORT([node_2_cpu_mask],
1266                                  [arch/$LINUX_ARCH/kernel/smpboot.c],
1267                                  [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1268                                             [node_to_cpumask is exported by
1269                                              the kernel])]) # i386
1270           ])
1271
1272 # 2.6.22 lost second parameter for invalidate_bdev
1273 AC_DEFUN([LC_INVALIDATE_BDEV_2ARG],
1274 [AC_MSG_CHECKING([if invalidate_bdev has second argument])
1275 LB_LINUX_TRY_COMPILE([
1276         #include <linux/buffer_head.h>
1277 ],[
1278         invalidate_bdev(NULL,0);
1279 ],[
1280         AC_MSG_RESULT([yes])
1281         AC_DEFINE(HAVE_INVALIDATE_BDEV_2ARG, 1,
1282                 [invalidate_bdev has second argument])
1283 ],[
1284         AC_MSG_RESULT([no])
1285 ])
1286 ])
1287
1288 # 2.6.23 have return type 'void' for unregister_blkdev
1289 AC_DEFUN([LC_UNREGISTER_BLKDEV_RETURN_INT],
1290 [AC_MSG_CHECKING([if unregister_blkdev return int])
1291 LB_LINUX_TRY_COMPILE([
1292         #include <linux/fs.h>
1293 ],[
1294         int i = unregister_blkdev(0,NULL);
1295 ],[
1296         AC_MSG_RESULT([yes])
1297         AC_DEFINE(HAVE_UNREGISTER_BLKDEV_RETURN_INT, 1,
1298                 [unregister_blkdev return int])
1299 ],[
1300         AC_MSG_RESULT([no])
1301 ])
1302 ])
1303
1304 # 2.6.23 change .sendfile to .splice_read
1305 AC_DEFUN([LC_KERNEL_SPLICE_READ],
1306 [AC_MSG_CHECKING([if kernel has .splice_read])
1307 LB_LINUX_TRY_COMPILE([
1308         #include <linux/fs.h>
1309 ],[
1310         struct file_operations file;
1311
1312         file.splice_read = NULL;
1313 ], [
1314         AC_MSG_RESULT([yes])
1315         AC_DEFINE(HAVE_KERNEL_SPLICE_READ, 1,
1316                 [kernel has .slice_read])
1317 ],[
1318         AC_MSG_RESULT([no])
1319 ])
1320 ])
1321
1322 # 2.6.23 extract nfs export related data into exportfs.h
1323 AC_DEFUN([LC_HAVE_EXPORTFS_H],
1324 [
1325 tmpfl="$CFLAGS"
1326 CFLAGS="$CFLAGS -I$LINUX_OBJ/include"
1327 AC_CHECK_HEADERS([linux/exportfs.h])
1328 CFLAGS="$tmpfl"
1329 ])
1330
1331 #
1332 # LC_VFS_INTENT_PATCHES
1333 #
1334 # check if the kernel has the VFS intent patches
1335 AC_DEFUN([LC_VFS_INTENT_PATCHES],
1336 [AC_MSG_CHECKING([if the kernel has the VFS intent patches])
1337 LB_LINUX_TRY_COMPILE([
1338         #include <linux/fs.h>
1339         #include <linux/namei.h>
1340 ],[
1341         struct nameidata nd;
1342         struct lookup_intent *it;
1343
1344         it = &nd.intent;
1345         intent_init(it, IT_OPEN);
1346         it->d.lustre.it_disposition = 0;
1347         it->d.lustre.it_data = NULL;
1348 ],[
1349         AC_MSG_RESULT([yes])
1350         AC_DEFINE(HAVE_VFS_INTENT_PATCHES, 1, [VFS intent patches are applied])
1351 ],[
1352         AC_MSG_RESULT([no])
1353 ])
1354 ])
1355
1356 AC_DEFUN([LC_S_TIME_GRAN],
1357 [AC_MSG_CHECKING([if super block has s_time_gran member])
1358 LB_LINUX_TRY_COMPILE([
1359         #include <linux/fs.h>
1360 ],[
1361         struct super_block sb;
1362
1363         return sb.s_time_gran;
1364 ],[
1365         AC_MSG_RESULT([yes])
1366         AC_DEFINE(HAVE_S_TIME_GRAN, 1, [super block has s_time_gran member])
1367 ],[
1368         AC_MSG_RESULT([no])
1369 ])
1370 ])
1371
1372 AC_DEFUN([LC_SB_TIME_GRAN],
1373 [AC_MSG_CHECKING([if kernel has old get_sb_time_gran])
1374 LB_LINUX_TRY_COMPILE([
1375         #include <linux/fs.h>
1376 ],[
1377         return get_sb_time_gran(NULL);
1378 ],[
1379         AC_MSG_RESULT([yes])
1380         AC_DEFINE(HAVE_SB_TIME_GRAN, 1, [kernel has old get_sb_time_gran])
1381 ],[
1382         AC_MSG_RESULT([no])
1383 ])
1384 ])
1385
1386
1387 # ~2.6.12 merge patch from oracle to convert tree_lock from spinlock to rwlock
1388 AC_DEFUN([LC_RW_TREE_LOCK],
1389 [AC_MSG_CHECKING([if kernel has tree_lock as rwlock])
1390 tmp_flags="$EXTRA_KCFLAGS"
1391 EXTRA_KCFLAGS="-Werror"
1392 LB_LINUX_TRY_COMPILE([
1393         #include <linux/fs.h>
1394 ],[
1395         struct address_space a;
1396
1397         write_lock(&a.tree_lock);
1398 ],[
1399         AC_MSG_RESULT([yes])
1400         AC_DEFINE(HAVE_RW_TREE_LOCK, 1, [kernel has tree_lock as rw_lock])
1401 ],[
1402         AC_MSG_RESULT([no])
1403 ])
1404 EXTRA_KCFLAGS="$tmp_flags"
1405 ])
1406
1407 AC_DEFUN([LC_CONST_ACL_SIZE],
1408 [AC_MSG_CHECKING([calc acl size])
1409 tmp_flags="$CFLAGS"
1410 CFLAGS="$CFLAGS -I$LINUX/include -I$LINUX_OBJ/include -I$LINUX_OBJ/include2 $EXTRA_KCFLAGS"
1411 AC_TRY_RUN([
1412 #define __KERNEL__
1413 #include <linux/autoconf.h>
1414 #include <linux/types.h>
1415 #undef __KERNEL__
1416 // block include
1417 #define __LINUX_POSIX_ACL_H
1418
1419 # ifdef CONFIG_FS_POSIX_ACL
1420 #  ifdef HAVE_XATTR_ACL
1421 #   include <linux/xattr_acl.h>
1422 #  endif
1423 #  ifdef HAVE_LINUX_POSIX_ACL_XATTR_H
1424 #   include <linux/posix_acl_xattr.h>
1425 #  endif
1426 # endif
1427
1428 #include <lustre_acl.h>
1429
1430 #include <stdio.h>
1431
1432 int main(void)
1433 {
1434     int size = mds_xattr_acl_size(LUSTRE_POSIX_ACL_MAX_ENTRIES);
1435     FILE *f = fopen("acl.size","w+");
1436     fprintf(f,"%d", size);
1437     fclose(f);
1438
1439     return 0;
1440 }
1441
1442 ],[
1443         acl_size=`cat acl.size`
1444         AC_MSG_RESULT([ACL size $acl_size])
1445         AC_DEFINE_UNQUOTED(XATTR_ACL_SIZE, AS_TR_SH([$acl_size]), [size of xattr acl])
1446 ],[
1447         AC_ERROR([ACL size can't computed])
1448 ])
1449 CFLAGS="$tmp_flags"
1450 ])
1451
1452 #
1453 # check for crypto API
1454 #
1455 AC_DEFUN([LC_ASYNC_BLOCK_CIPHER],
1456 [AC_MSG_CHECKING([if kernel has block cipher support])
1457 LB_LINUX_TRY_COMPILE([
1458         #include <linux/crypto.h>
1459 ],[
1460         int v = CRYPTO_ALG_TYPE_BLKCIPHER;
1461 ],[
1462         AC_MSG_RESULT([yes])
1463         AC_DEFINE(HAVE_ASYNC_BLOCK_CIPHER, 1, [kernel has block cipher support])
1464 ],[
1465         AC_MSG_RESULT([no])
1466 ])
1467 ])
1468
1469 #
1470 # check for FS_RENAME_DOES_D_MOVE flag
1471 #
1472 AC_DEFUN([LC_FS_RENAME_DOES_D_MOVE],
1473 [AC_MSG_CHECKING([if kernel has FS_RENAME_DOES_D_MOVE flag])
1474 LB_LINUX_TRY_COMPILE([
1475         #include <linux/fs.h>
1476 ],[
1477         int v = FS_RENAME_DOES_D_MOVE;
1478 ],[
1479         AC_MSG_RESULT([yes])
1480         AC_DEFINE(HAVE_FS_RENAME_DOES_D_MOVE, 1, [kernel has FS_RENAME_DOES_D_MOVE flag])
1481 ],[
1482         AC_MSG_RESULT([no])
1483 ])
1484 ])
1485
1486 #
1487 # LC_PROG_LINUX
1488 #
1489 # Lustre linux kernel checks
1490 #
1491 AC_DEFUN([LC_PROG_LINUX],
1492          [LC_LUSTRE_VERSION_H
1493          if test x$enable_server = xyes ; then
1494              AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
1495              LC_CONFIG_BACKINGFS
1496          fi
1497          LC_CONFIG_PINGER
1498          LC_CONFIG_CHECKSUM
1499          LC_CONFIG_LIBLUSTRE_RECOVERY
1500          LC_CONFIG_HEALTH_CHECK_WRITE
1501          LC_CONFIG_LRU_RESIZE
1502          LC_QUOTA_MODULE
1503
1504          LC_TASK_PPTR
1505          # RHEL4 patches
1506          LC_EXPORT_TRUNCATE_COMPLETE
1507          LC_EXPORT_TRUNCATE_RANGE
1508          LC_EXPORT_D_REHASH_COND
1509          LC_EXPORT___D_REHASH
1510          LC_EXPORT_D_MOVE_LOCKED
1511          LC_EXPORT___D_MOVE
1512          LC_EXPORT_NODE_TO_CPUMASK
1513
1514          LC_FUNC_RELEASEPAGE_WITH_INT
1515          LC_HEADER_MM_INLINE
1516          LC_STRUCT_INODE
1517          LC_FUNC_REGISTER_CACHE
1518          LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
1519          LC_FUNC_DEV_SET_RDONLY
1520          LC_FUNC_FILEMAP_FDATAWRITE
1521          LC_STRUCT_STATFS
1522          LC_FUNC_PAGE_MAPPED
1523          LC_STRUCT_FILE_OPS_UNLOCKED_IOCTL
1524          LC_FILEMAP_POPULATE
1525          LC_D_ADD_UNIQUE
1526          LC_BIT_SPINLOCK_H
1527
1528          LC_XATTR_ACL
1529          LC_POSIX_ACL_XATTR_H
1530          LC_CONST_ACL_SIZE
1531
1532          LC_STRUCT_INTENT_FILE
1533
1534          LC_CAPA_CRYPTO
1535          LC_CONFIG_RMTCLIENT
1536          LC_CONFIG_GSS
1537          LC_FUNC_MS_FLOCK_LOCK
1538          LC_FUNC_HAVE_CAN_SLEEP_ARG
1539          LC_FUNC_F_OP_FLOCK
1540          LC_QUOTA_READ
1541          LC_COOKIE_FOLLOW_LINK
1542          LC_FUNC_RCU
1543          LC_PERCPU_COUNTER
1544          LC_QUOTA64
1545
1546          # does the kernel have VFS intent patches?
1547          LC_VFS_INTENT_PATCHES
1548
1549          # ~2.6.11
1550          LC_S_TIME_GRAN
1551          LC_SB_TIME_GRAN
1552
1553          # 2.6.12
1554          LC_RW_TREE_LOCK
1555
1556          # 2.6.15
1557          LC_INODE_I_MUTEX
1558
1559          # 2.6.16
1560          LC_SECURITY_PLUG  # for SLES10 SP2
1561
1562          # 2.6.17
1563          LC_INODE_IPRIVATE
1564          LC_DQUOTOFF_MUTEX
1565
1566          # 2.6.18
1567          LC_NR_PAGECACHE
1568          LC_STATFS_DENTRY_PARAM
1569          LC_VFS_KERN_MOUNT
1570          LC_INVALIDATEPAGE_RETURN_INT
1571          LC_UMOUNTBEGIN_HAS_VFSMOUNT
1572          LC_SEQ_LOCK
1573          LC_EXPORT_FILEMAP_FDATAWRITE_RANGE
1574          if test x$enable_server = xyes ; then
1575                 LC_EXPORT_INVALIDATE_MAPPING_PAGES
1576          fi
1577
1578          #2.6.18 + RHEL5 (fc6)
1579          LC_PG_FS_MISC
1580          LC_PAGE_CHECKED
1581
1582          # 2.6.19
1583          LC_INODE_BLKSIZE
1584          LC_VFS_READDIR_U64_INO
1585          LC_FILE_WRITEV
1586          LC_FILE_READV
1587
1588          # 2.6.20
1589          LC_CANCEL_DIRTY_PAGE
1590
1591          # raid5-zerocopy patch
1592          LC_PAGE_CONSTANT
1593
1594          # 2.6.22
1595          LC_INVALIDATE_BDEV_2ARG
1596          LC_ASYNC_BLOCK_CIPHER
1597          LC_FS_RENAME_DOES_D_MOVE
1598          # 2.6.23
1599          LC_UNREGISTER_BLKDEV_RETURN_INT
1600          LC_KERNEL_SPLICE_READ
1601          LC_HAVE_EXPORTFS_H
1602 ])
1603
1604 #
1605 # LC_CONFIG_CLIENT_SERVER
1606 #
1607 # Build client/server sides of Lustre
1608 #
1609 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
1610 [AC_MSG_CHECKING([whether to build Lustre server support])
1611 AC_ARG_ENABLE([server],
1612         AC_HELP_STRING([--disable-server],
1613                         [disable Lustre server support]),
1614         [],[enable_server='yes'])
1615 AC_MSG_RESULT([$enable_server])
1616
1617 AC_MSG_CHECKING([whether to build Lustre client support])
1618 AC_ARG_ENABLE([client],
1619         AC_HELP_STRING([--disable-client],
1620                         [disable Lustre client support]),
1621         [],[enable_client='yes'])
1622 AC_MSG_RESULT([$enable_client])])
1623
1624 #
1625 # LC_CONFIG_LIBLUSTRE
1626 #
1627 # whether to build liblustre
1628 #
1629 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
1630 [AC_MSG_CHECKING([whether to build Lustre library])
1631 AC_ARG_ENABLE([liblustre],
1632         AC_HELP_STRING([--disable-liblustre],
1633                         [disable building of Lustre library]),
1634         [],[enable_liblustre=$with_sysio])
1635 AC_MSG_RESULT([$enable_liblustre])
1636 # only build sysio if liblustre is built
1637 with_sysio="$enable_liblustre"
1638
1639 AC_MSG_CHECKING([whether to build liblustre tests])
1640 AC_ARG_ENABLE([liblustre-tests],
1641         AC_HELP_STRING([--enable-liblustre-tests],
1642                         [enable liblustre tests, if --disable-tests is used]),
1643         [],[enable_liblustre_tests=$enable_tests])
1644 if test x$enable_liblustre != xyes ; then
1645    enable_liblustre_tests='no'
1646 fi
1647 AC_MSG_RESULT([$enable_liblustre_tests])
1648
1649 AC_MSG_CHECKING([whether to enable liblustre acl])
1650 AC_ARG_ENABLE([liblustre-acl],
1651         AC_HELP_STRING([--disable-liblustre-acl],
1652                         [disable ACL support for liblustre]),
1653         [],[enable_liblustre_acl=yes])
1654 AC_MSG_RESULT([$enable_liblustre_acl])
1655 if test x$enable_liblustre_acl = xyes ; then
1656   AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
1657 fi
1658
1659 #
1660 # --enable-mpitest
1661 #
1662 AC_ARG_ENABLE(mpitests,
1663         AC_HELP_STRING([--enable-mpitest=yes|no|mpich directory],
1664                            [include mpi tests]),
1665         [
1666          enable_mpitests=yes
1667          case $enableval in
1668          yes)
1669                 MPI_ROOT=/opt/mpich
1670                 LDFLAGS="$LDFLAGS -L$MPI_ROOT/ch-p4/lib -L$MPI_ROOT/ch-p4/lib64"
1671                 CFLAGS="$CFLAGS -I$MPI_ROOT/include"
1672                 ;;
1673          no)
1674                 enable_mpitests=no
1675                 ;;
1676          [[\\/$]]* | ?:[[\\/]]* )
1677                 MPI_ROOT=$enableval
1678                 LDFLAGS="$LDFLAGS -L$with_mpi/lib"
1679                 CFLAGS="$CFLAGS -I$MPI_ROOT/include"
1680                 ;;
1681          *)
1682                  AC_MSG_ERROR([expected absolute directory name for --enable-mpitests or yes or no])
1683                  ;;
1684          esac
1685         ],
1686         [
1687         MPI_ROOT=/opt/mpich
1688         LDFLAGS="$LDFLAGS -L$MPI_ROOT/ch-p4/lib -L$MPI_ROOT/ch-p4/lib64"
1689         CFLAGS="$CFLAGS -I$MPI_ROOT/include"
1690         enable_mpitests=yes
1691         ]
1692 )
1693 AC_SUBST(MPI_ROOT)
1694
1695 if test x$enable_mpitests != xno; then
1696         AC_MSG_CHECKING([whether to mpitests can be built])
1697         AC_CHECK_FILE([$MPI_ROOT/include/mpi.h],
1698                       [AC_CHECK_LIB([mpich],[MPI_Start],[enable_mpitests=yes],[enable_mpitests=no])],
1699                       [enable_mpitests=no])
1700 fi
1701 AC_MSG_RESULT([$enable_mpitests])
1702
1703
1704 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
1705 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
1706
1707 LC_CONFIG_PINGER
1708 LC_CONFIG_LIBLUSTRE_RECOVERY
1709 ])
1710
1711 AC_DEFUN([LC_CONFIG_LRU_RESIZE],
1712 [AC_MSG_CHECKING([whether to enable lru self-adjusting])
1713 AC_ARG_ENABLE([lru_resize],
1714         AC_HELP_STRING([--enable-lru-resize],
1715                         [enable lru resize support]),
1716         [],[enable_lru_resize='yes'])
1717 AC_MSG_RESULT([$enable_lru_resize])
1718 if test x$enable_lru_resize != xno; then
1719    AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])
1720 fi
1721 ])
1722
1723 #
1724 # LC_CONFIG_QUOTA
1725 #
1726 # whether to enable quota support global control
1727 #
1728 AC_DEFUN([LC_CONFIG_QUOTA],
1729 [AC_ARG_ENABLE([quota],
1730         AC_HELP_STRING([--enable-quota],
1731                         [enable quota support]),
1732         [],[enable_quota='yes'])
1733 ])
1734
1735 # whether to enable quota support(kernel modules)
1736 AC_DEFUN([LC_QUOTA_MODULE],
1737 [if test x$enable_quota != xno; then
1738     LB_LINUX_CONFIG([QUOTA],[
1739         enable_quota_module='yes'
1740         AC_DEFINE(HAVE_QUOTA_SUPPORT, 1, [Enable quota support])
1741     ],[
1742         enable_quota_module='no'
1743         AC_MSG_WARN([quota is not enabled because the kernel - lacks quota support])
1744     ])
1745 fi
1746 ])
1747
1748 AC_DEFUN([LC_QUOTA],
1749 [#check global
1750 LC_CONFIG_QUOTA
1751 #check for utils
1752 AC_CHECK_HEADER(sys/quota.h,
1753                 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
1754                 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
1755 ])
1756
1757 AC_DEFUN([LC_QUOTA_READ],
1758 [AC_MSG_CHECKING([if kernel supports quota_read])
1759 LB_LINUX_TRY_COMPILE([
1760         #include <linux/fs.h>
1761 ],[
1762         struct super_operations sp;
1763         void *i = (void *)sp.quota_read;
1764 ],[
1765         AC_MSG_RESULT([yes])
1766         AC_DEFINE(KERNEL_SUPPORTS_QUOTA_READ, 1, [quota_read found])
1767 ],[
1768         AC_MSG_RESULT([no])
1769 ])
1770 ])
1771
1772 #
1773 # LC_CONFIG_SPLIT
1774 #
1775 # whether to enable split support
1776 #
1777 AC_DEFUN([LC_CONFIG_SPLIT],
1778 [AC_MSG_CHECKING([whether to enable split support])
1779 AC_ARG_ENABLE([split],
1780         AC_HELP_STRING([--enable-split],
1781                         [enable split support]),
1782         [],[enable_split='no'])
1783 AC_MSG_RESULT([$enable_split])
1784 if test x$enable_split != xno; then
1785    AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
1786 fi
1787 ])
1788
1789 #
1790 # LC_COOKIE_FOLLOW_LINK
1791 #
1792 # kernel 2.6.13+ ->follow_link returns a cookie
1793 #
1794
1795 AC_DEFUN([LC_COOKIE_FOLLOW_LINK],
1796 [AC_MSG_CHECKING([if inode_operations->follow_link returns a cookie])
1797 LB_LINUX_TRY_COMPILE([
1798         #include <linux/fs.h>
1799         #include <linux/namei.h>
1800 ],[
1801         struct dentry dentry;
1802         struct nameidata nd;
1803
1804         dentry.d_inode->i_op->put_link(&dentry, &nd, NULL);
1805 ],[
1806         AC_DEFINE(HAVE_COOKIE_FOLLOW_LINK, 1, [inode_operations->follow_link returns a cookie])
1807         AC_MSG_RESULT([yes])
1808 ],[
1809         AC_MSG_RESULT([no])
1810 ])
1811 ])
1812
1813 #
1814 # LC_FUNC_RCU
1815 #
1816 # kernels prior than 2.6.0(?) have no RCU supported; in kernel 2.6.5(SUSE),
1817 # call_rcu takes three parameters.
1818 #
1819 AC_DEFUN([LC_FUNC_RCU],
1820 [AC_MSG_CHECKING([if kernel have RCU supported])
1821 LB_LINUX_TRY_COMPILE([
1822         #include <linux/rcupdate.h>
1823 ],[],[
1824         AC_DEFINE(HAVE_RCU, 1, [have RCU defined])
1825         AC_MSG_RESULT([yes])
1826
1827         AC_MSG_CHECKING([if call_rcu takes three parameters])
1828         LB_LINUX_TRY_COMPILE([
1829                 #include <linux/rcupdate.h>
1830         ],[
1831                 struct rcu_head rh;
1832                 call_rcu(&rh, (void (*)(struct rcu_head *))1, NULL);
1833         ],[
1834                 AC_DEFINE(HAVE_CALL_RCU_PARAM, 1, [call_rcu takes three parameters])
1835                 AC_MSG_RESULT([yes])
1836         ],[
1837                 AC_MSG_RESULT([no])
1838         ])
1839 ],[
1840         AC_MSG_RESULT([no])
1841 ])
1842 ])
1843
1844 # LC_SECURITY_PLUG  # for SLES10 SP2
1845 # check security plug in sles10 sp2 kernel
1846 AC_DEFUN([LC_SECURITY_PLUG],
1847 [AC_MSG_CHECKING([If kernel has security plug support])
1848 LB_LINUX_TRY_COMPILE([
1849         #include <linux/fs.h>
1850 ],[
1851         struct dentry   *dentry;
1852         struct vfsmount *mnt;
1853         struct iattr    *iattr;
1854
1855         notify_change(dentry, mnt, iattr);
1856 ],[
1857         AC_MSG_RESULT(yes)
1858         AC_DEFINE(HAVE_SECURITY_PLUG, 1,
1859                 [SLES10 SP2 use extra parameter in vfs])
1860 ],[
1861         AC_MSG_RESULT(no)
1862 ])
1863 ])
1864
1865 AC_DEFUN([LC_PERCPU_COUNTER],
1866 [AC_MSG_CHECKING([if have struct percpu_counter defined])
1867 LB_LINUX_TRY_COMPILE([
1868         #include <linux/percpu_counter.h>
1869 ],[],[
1870         AC_DEFINE(HAVE_PERCPU_COUNTER, 1, [percpu_counter found])
1871         AC_MSG_RESULT([yes])
1872
1873         AC_MSG_CHECKING([if percpu_counter_inc takes the 2nd argument])
1874         LB_LINUX_TRY_COMPILE([
1875                 #include <linux/percpu_counter.h>
1876         ],[
1877                 struct percpu_counter c;
1878                 percpu_counter_init(&c, 0);
1879         ],[
1880                 AC_DEFINE(HAVE_PERCPU_2ND_ARG, 1, [percpu_counter_init has two
1881                                                    arguments])
1882                 AC_MSG_RESULT([yes])
1883         ],[
1884                 AC_MSG_RESULT([no])
1885         ])
1886 ],[
1887         AC_MSG_RESULT([no])
1888 ])
1889 ])
1890
1891 #
1892 # LC_QUOTA64
1893 # linux kernel have 64-bit limits support
1894 #
1895 AC_DEFUN([LC_QUOTA64],
1896 [if test x$enable_quota_module = xyes; then
1897         AC_MSG_CHECKING([if kernel has 64-bit quota limits support])
1898         LB_LINUX_TRY_COMPILE([
1899                 #include <linux/kernel.h>
1900                 #include <linux/fs.h>
1901                 #include <linux/quotaio_v2.h>
1902                 int versions[] = V2_INITQVERSIONS_R1;
1903                 struct v2_disk_dqblk_r1 dqblk_r1;
1904         ],[],[
1905                 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
1906                 AC_MSG_RESULT([yes])
1907         ],[
1908                 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
1909                         if test x$enable_server = xyes ; then
1910                                 AC_MSG_ERROR([You have got no 64-bit kernel quota support.])
1911                         fi
1912                 ],[])
1913                 AC_MSG_RESULT([no])
1914         ])
1915 fi
1916 ])
1917
1918 #
1919 # LC_CONFIGURE
1920 #
1921 # other configure checks
1922 #
1923 AC_DEFUN([LC_CONFIGURE],
1924 [LC_CONFIG_OBD_BUFFER_SIZE
1925
1926 if test $target_cpu == "i686" -o $target_cpu == "x86_64"; then
1927         CFLAGS="$CFLAGS -Werror"
1928 fi
1929
1930 # include/liblustre.h
1931 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
1932
1933 # liblustre/llite_lib.h
1934 AC_CHECK_HEADERS([xtio.h file.h])
1935
1936 # liblustre/dir.c
1937 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
1938
1939 # liblustre/lutil.c
1940 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
1941 AC_CHECK_FUNCS([inet_ntoa])
1942
1943 # libsysio/src/readlink.c
1944 LC_READLINK_SSIZE_T
1945
1946 # lvfs/prng.c - depends on linux/types.h from liblustre/dir.c
1947 AC_CHECK_HEADERS([linux/random.h], [], [],
1948                  [#ifdef HAVE_LINUX_TYPES_H
1949                   # include <linux/types.h>
1950                   #endif
1951                  ])
1952
1953 # utils/llverfs.c
1954 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
1955
1956 # check for -lz support
1957 ZLIB=""
1958 AC_CHECK_LIB([z],
1959              [adler32],
1960              [AC_CHECK_HEADERS([zlib.h],
1961                                [ZLIB="-lz"
1962                                 AC_DEFINE([HAVE_ADLER], 1,
1963                                           [support alder32 checksum type])],
1964                                [AC_MSG_WARN([No zlib-devel package found,
1965                                              unable to use adler32 checksum])])],
1966              [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
1967 )
1968 AC_SUBST(ZLIB)
1969
1970 # Super safe df
1971 AC_ARG_ENABLE([mindf],
1972       AC_HELP_STRING([--enable-mindf],
1973                       [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
1974       [],[])
1975 if test "$enable_mindf" = "yes" ;  then
1976       AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
1977 fi
1978
1979 AC_ARG_ENABLE([fail_alloc],
1980         AC_HELP_STRING([--disable-fail-alloc],
1981                 [disable randomly alloc failure]),
1982         [],[enable_fail_alloc=yes])
1983 AC_MSG_CHECKING([whether to randomly failing memory alloc])
1984 AC_MSG_RESULT([$enable_fail_alloc])
1985 if test x$enable_fail_alloc != xno ; then
1986         AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
1987 fi
1988
1989 AC_ARG_ENABLE([invariants],
1990         AC_HELP_STRING([--enable-invariants],
1991                 [enable invariant checking (cpu intensive)]),
1992         [],[])
1993 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
1994 AC_MSG_RESULT([$enable_invariants])
1995 if test x$enable_invariants = xyes ; then
1996         AC_DEFINE([INVARIANT_CHECK], 1, [enable invariant checking])
1997 fi
1998
1999 AC_ARG_ENABLE([lu_ref],
2000         AC_HELP_STRING([--enable-lu_ref],
2001                 [enable lu_ref reference tracking code]),
2002         [],[])
2003 AC_MSG_CHECKING([whether to track references with lu_ref])
2004 AC_MSG_RESULT([$enable_lu_ref])
2005 if test x$enable_lu_ref = xyes ; then
2006         AC_DEFINE([USE_LU_REF], 1, [enable lu_ref reference tracking code])
2007 fi
2008
2009 ])
2010
2011 #
2012 # LC_CONDITIONALS
2013 #
2014 # AM_CONDITIONALS for lustre
2015 #
2016 AC_DEFUN([LC_CONDITIONALS],
2017 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
2018 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
2019 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
2020 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
2021 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
2022 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
2023 AM_CONDITIONAL(QUOTA, test x$enable_quota_module = xyes)
2024 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
2025 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
2026 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
2027 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
2028 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
2029 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
2030 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
2031 ])
2032
2033 #
2034 # LC_CONFIG_FILES
2035 #
2036 # files that should be generated with AC_OUTPUT
2037 #
2038 AC_DEFUN([LC_CONFIG_FILES],
2039 [AC_CONFIG_FILES([
2040 lustre/Makefile
2041 lustre/autoMakefile
2042 lustre/autoconf/Makefile
2043 lustre/contrib/Makefile
2044 lustre/doc/Makefile
2045 lustre/include/Makefile
2046 lustre/include/lustre_ver.h
2047 lustre/include/linux/Makefile
2048 lustre/include/lustre/Makefile
2049 lustre/kernel_patches/targets/2.6-vanilla.target
2050 lustre/kernel_patches/targets/2.6-rhel4.target
2051 lustre/kernel_patches/targets/2.6-rhel5.target
2052 lustre/kernel_patches/targets/2.6-fc5.target
2053 lustre/kernel_patches/targets/2.6-patchless.target
2054 lustre/kernel_patches/targets/2.6-sles10.target
2055 lustre/ldlm/Makefile
2056 lustre/fid/Makefile
2057 lustre/fid/autoMakefile
2058 lustre/liblustre/Makefile
2059 lustre/liblustre/tests/Makefile
2060 lustre/llite/Makefile
2061 lustre/llite/autoMakefile
2062 lustre/lclient/Makefile
2063 lustre/lov/Makefile
2064 lustre/lov/autoMakefile
2065 lustre/lvfs/Makefile
2066 lustre/lvfs/autoMakefile
2067 lustre/mdc/Makefile
2068 lustre/mdc/autoMakefile
2069 lustre/lmv/Makefile
2070 lustre/lmv/autoMakefile
2071 lustre/mds/Makefile
2072 lustre/mds/autoMakefile
2073 lustre/mdt/Makefile
2074 lustre/mdt/autoMakefile
2075 lustre/cmm/Makefile
2076 lustre/cmm/autoMakefile
2077 lustre/mdd/Makefile
2078 lustre/mdd/autoMakefile
2079 lustre/fld/Makefile
2080 lustre/fld/autoMakefile
2081 lustre/obdclass/Makefile
2082 lustre/obdclass/autoMakefile
2083 lustre/obdclass/linux/Makefile
2084 lustre/obdecho/Makefile
2085 lustre/obdecho/autoMakefile
2086 lustre/obdfilter/Makefile
2087 lustre/obdfilter/autoMakefile
2088 lustre/osc/Makefile
2089 lustre/osc/autoMakefile
2090 lustre/ost/Makefile
2091 lustre/ost/autoMakefile
2092 lustre/osd/Makefile
2093 lustre/osd/autoMakefile
2094 lustre/mgc/Makefile
2095 lustre/mgc/autoMakefile
2096 lustre/mgs/Makefile
2097 lustre/mgs/autoMakefile
2098 lustre/ptlrpc/Makefile
2099 lustre/ptlrpc/autoMakefile
2100 lustre/ptlrpc/gss/Makefile
2101 lustre/ptlrpc/gss/autoMakefile
2102 lustre/quota/Makefile
2103 lustre/quota/autoMakefile
2104 lustre/scripts/Makefile
2105 lustre/scripts/version_tag.pl
2106 lustre/tests/Makefile
2107 lustre/utils/Makefile
2108 lustre/utils/gss/Makefile
2109 ])
2110 case $lb_target_os in
2111         darwin)
2112                 AC_CONFIG_FILES([ lustre/obdclass/darwin/Makefile ])
2113                 ;;
2114 esac
2115
2116 ])