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 ldiskfs_is_ext4=yes
  12 ])
  13
  14 #
  15 # LC_PATH_DEFAULTS
  16 #
  17 # lustre specific paths
  18 #
  19 AC_DEFUN([LC_PATH_DEFAULTS],
  20 [# ptlrpc kernel build requires this
  21 LUSTRE="$PWD/lustre"
  22 AC_SUBST(LUSTRE)
  23
  24 # mount.lustre
  25 rootsbindir='/sbin'
  26 AC_SUBST(rootsbindir)
  27
  28 demodir='$(docdir)/demo'
  29 AC_SUBST(demodir)
  30
  31 pkgexampledir='${pkgdatadir}/examples'
  32 AC_SUBST(pkgexampledir)
  33 ])
  34
  35 #
  36 # LC_TARGET_SUPPORTED
  37 #
  38 # is the target os supported?
  39 #
  40 AC_DEFUN([LC_TARGET_SUPPORTED],
  41 [case $target_os in
  42         linux* | darwin*)
  43 $1
  44                 ;;
  45         *)
  46 $2
  47                 ;;
  48 esac
  49 ])
  50
  51 #
  52 # Ensure stack size big than 8k in Lustre server (all kernels)
  53 #
  54 AC_DEFUN([LC_STACK_SIZE],
  55 [AC_MSG_CHECKING([stack size big than 8k])
  56 LB_LINUX_TRY_COMPILE([
  57         #include <linux/thread_info.h>
  58 ],[
  59         #if THREAD_SIZE < 8192
  60         #error "stack size < 8192"
  61         #endif
  62 ],[
  63         AC_MSG_RESULT(yes)
  64 ],[
  65         AC_MSG_ERROR([Lustre requires that Linux is configured with at least a 8KB stack.])
  66 ])
  67 ])
  68
  69 #
  70 # LC_FUNC_DEV_SET_RDONLY
  71 #
  72 # check for the old-style dev_set_rdonly which took an extra "devno" param
  73 # and can only set a single device to discard writes at one time
  74 #
  75 AC_DEFUN([LC_FUNC_DEV_SET_RDONLY],
  76 [AC_MSG_CHECKING([if kernel has new dev_set_rdonly])
  77 LB_LINUX_TRY_COMPILE([
  78         #include <linux/fs.h>
  79         #include <linux/blkdev.h>
  80 ],[
  81         #ifndef HAVE_CLEAR_RDONLY_ON_PUT
  82         #error needs to be patched by lustre kernel patches from Lustre version 1.4.3 or above.
  83         #endif
  84 ],[
  85         AC_MSG_RESULT([yes])
  86         AC_DEFINE(HAVE_DEV_SET_RDONLY, 1, [kernel has new dev_set_rdonly])
  87 ],[
  88         AC_MSG_ERROR([no, Linux kernel source needs to be patches by lustre
  89 kernel patches from Lustre version 1.4.3 or above.])
  90 ])
  91 ])
  92
  93 #
  94 # LC_CONFIG_BACKINGFS
  95 #
  96 # setup, check the backing filesystem
  97 #
  98 AC_DEFUN([LC_CONFIG_BACKINGFS],
  99 [
 100 BACKINGFS="ldiskfs"
 101
 102 if test x$with_ldiskfs = xno ; then
 103         if test x$linux25$enable_server = xyesyes ; then
 104                 AC_MSG_ERROR([ldiskfs is required for 2.6-based servers.])
 105         fi
 106 else
 107         # ldiskfs is enabled
 108         LB_DEFINE_LDISKFS_OPTIONS
 109 fi #ldiskfs
 110
 111 AC_MSG_CHECKING([which backing filesystem to use])
 112 AC_MSG_RESULT([$BACKINGFS])
 113 AC_SUBST(BACKINGFS)
 114 ])
 115
 116 #
 117 # LC_CONFIG_PINGER
 118 #
 119 # the pinger is temporary, until we have the recovery node in place
 120 #
 121 AC_DEFUN([LC_CONFIG_PINGER],
 122 [AC_MSG_CHECKING([whether to enable pinger support])
 123 AC_ARG_ENABLE([pinger],
 124         AC_HELP_STRING([--disable-pinger],
 125                         [disable recovery pinger support]),
 126         [],[enable_pinger='yes'])
 127 AC_MSG_RESULT([$enable_pinger])
 128 if test x$enable_pinger != xno ; then
 129   AC_DEFINE(ENABLE_PINGER, 1, Use the Pinger)
 130 fi
 131 ])
 132
 133 #
 134 # LC_CONFIG_CHECKSUM
 135 #
 136 # do checksum of bulk data between client and OST
 137 #
 138 AC_DEFUN([LC_CONFIG_CHECKSUM],
 139 [AC_MSG_CHECKING([whether to enable data checksum support])
 140 AC_ARG_ENABLE([checksum],
 141        AC_HELP_STRING([--disable-checksum],
 142                        [disable data checksum support]),
 143        [],[enable_checksum='yes'])
 144 AC_MSG_RESULT([$enable_checksum])
 145 if test x$enable_checksum != xno ; then
 146   AC_DEFINE(ENABLE_CHECKSUM, 1, do data checksums)
 147 fi
 148 ])
 149
 150 #
 151 # LC_HEADER_LDISKFS_XATTR
 152 #
 153 # CHAOS kernel-devel package will not include fs/ldiskfs/xattr.h
 154 #
 155 AC_DEFUN([LC_HEADER_LDISKFS_XATTR],
 156 [AC_MSG_CHECKING([if ldiskfs has xattr.h header])
 157 tmp_flags="$EXTRA_KCFLAGS"
 158 EXTRA_KCFLAGS="-I$LINUX/fs -I$LDISKFS_DIR -I$LDISKFS_DIR/ldiskfs"
 159 LB_LINUX_TRY_COMPILE([
 160         #include <ldiskfs/xattr.h>
 161 ],[
 162         ldiskfs_xattr_get(NULL, 0, "", NULL, 0);
 163         ldiskfs_xattr_set_handle(NULL, NULL, 0, "", NULL, 0, 0);
 164
 165 ],[
 166         AC_MSG_RESULT([yes])
 167         AC_DEFINE(HAVE_LDISKFS_XATTR_H, 1, [ldiskfs/xattr.h found])
 168 ],[
 169         AC_MSG_RESULT([no])
 170 ])
 171 EXTRA_KCFLAGS="$tmp_flags"
 172 ])
 173
 174 #
 175 # LC_CONFIG_HEALTH_CHECK_WRITE
 176 #
 177 # Turn off the actual write to the disk
 178 #
 179 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE],
 180 [AC_MSG_CHECKING([whether to enable a write with the health check])
 181 AC_ARG_ENABLE([health_write],
 182         AC_HELP_STRING([--enable-health_write],
 183                         [enable disk writes when doing health check]),
 184         [],[enable_health_write='no'])
 185 AC_MSG_RESULT([$enable_health_write])
 186 if test x$enable_health_write != xno ; then
 187   AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, Write when Checking Health)
 188 fi
 189 ])
 190
 191 #
 192 # LC_CONFIG_LIBLUSTRE_RECOVERY
 193 #
 194 AC_DEFUN([LC_CONFIG_LIBLUSTRE_RECOVERY],
 195 [AC_MSG_CHECKING([whether to enable liblustre recovery support])
 196 AC_ARG_ENABLE([liblustre-recovery],
 197         AC_HELP_STRING([--disable-liblustre-recovery],
 198                         [disable liblustre recovery support]),
 199         [],[enable_liblustre_recovery='yes'])
 200 AC_MSG_RESULT([$enable_liblustre_recovery])
 201 if test x$enable_liblustre_recovery != xno ; then
 202   AC_DEFINE(ENABLE_LIBLUSTRE_RECOVERY, 1, Liblustre Can Recover)
 203 fi
 204 ])
 205
 206 #
 207 # LC_CONFIG_OBD_BUFFER_SIZE
 208 #
 209 # the maximum buffer size of lctl ioctls
 210 #
 211 AC_DEFUN([LC_CONFIG_OBD_BUFFER_SIZE],
 212 [AC_MSG_CHECKING([maximum OBD ioctl size])
 213 AC_ARG_WITH([obd-buffer-size],
 214         AC_HELP_STRING([--with-obd-buffer-size=[size]],
 215                         [set lctl ioctl maximum bytes (default=8192)]),
 216         [
 217                 OBD_BUFFER_SIZE=$with_obd_buffer_size
 218         ],[
 219                 OBD_BUFFER_SIZE=8192
 220         ])
 221 AC_MSG_RESULT([$OBD_BUFFER_SIZE bytes])
 222 AC_DEFINE_UNQUOTED(OBD_MAX_IOCTL_BUFFER, $OBD_BUFFER_SIZE, [IOCTL Buffer Size])
 223 ])
 224
 225 #
 226 # LC_STRUCT_STATFS
 227 #
 228 # AIX does not have statfs.f_namelen
 229 #
 230 AC_DEFUN([LC_STRUCT_STATFS],
 231 [AC_MSG_CHECKING([if struct statfs has a f_namelen field])
 232 LB_LINUX_TRY_COMPILE([
 233         #include <linux/vfs.h>
 234 ],[
 235         struct statfs sfs;
 236         sfs.f_namelen = 1;
 237 ],[
 238         AC_MSG_RESULT([yes])
 239         AC_DEFINE(HAVE_STATFS_NAMELEN, 1, [struct statfs has a namelen field])
 240 ],[
 241         AC_MSG_RESULT([no])
 242 ])
 243 ])
 244
 245 #
 246 # LC_READLINK_SSIZE_T
 247 #
 248 AC_DEFUN([LC_READLINK_SSIZE_T],
 249 [AC_MSG_CHECKING([if readlink returns ssize_t])
 250 AC_TRY_COMPILE([
 251         #include <unistd.h>
 252 ],[
 253         ssize_t readlink(const char *, char *, size_t);
 254 ],[
 255         AC_MSG_RESULT([yes])
 256         AC_DEFINE(HAVE_POSIX_1003_READLINK, 1, [readlink returns ssize_t])
 257 ],[
 258         AC_MSG_RESULT([no])
 259 ])
 260 ])
 261
 262 #
 263 # LC_FUNC_MS_FLOCK_LOCK
 264 #
 265 # 2.6.5 kernel has MS_FLOCK_LOCK sb flag
 266 #
 267 AC_DEFUN([LC_FUNC_MS_FLOCK_LOCK],
 268 [AC_MSG_CHECKING([if kernel has MS_FLOCK_LOCK sb flag])
 269 LB_LINUX_TRY_COMPILE([
 270         #include <linux/fs.h>
 271 ],[
 272         int flags = MS_FLOCK_LOCK;
 273 ],[
 274         AC_DEFINE(HAVE_MS_FLOCK_LOCK, 1,
 275                 [kernel has MS_FLOCK_LOCK flag])
 276         AC_MSG_RESULT([yes])
 277 ],[
 278         AC_MSG_RESULT([no])
 279 ])
 280 ])
 281
 282 #
 283 # LC_FUNC_HAVE_CAN_SLEEP_ARG
 284 #
 285 # 2.6.5 kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()
 286 #
 287 AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG],
 288 [AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
 289 LB_LINUX_TRY_COMPILE([
 290         #include <linux/fs.h>
 291 ],[
 292         int cansleep;
 293         struct file *file;
 294         struct file_lock *file_lock;
 295         flock_lock_file_wait(file, file_lock, cansleep);
 296 ],[
 297         AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1,
 298                 [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
 299         AC_MSG_RESULT([yes])
 300 ],[
 301         AC_MSG_RESULT([no])
 302 ])
 303 ])
 304
 305 #
 306 # LC_FUNC_RELEASEPAGE_WITH_GFP
 307 #
 308 # 2.6.9 ->releasepage() takes a gfp_t arg
 309 # This kernel defines gfp_t (HAS_GFP_T) but doesn't use it for this function,
 310 # while others either don't have gfp_t or pass gfp_t as the parameter.
 311 #
 312 AC_DEFUN([LC_FUNC_RELEASEPAGE_WITH_GFP],
 313 [AC_MSG_CHECKING([if releasepage has a gfp_t parameter])
 314 RELEASEPAGE_WITH_GFP="$(grep -c 'releasepage.*gfp_t' $LINUX/include/linux/fs.h)"
 315 if test "$RELEASEPAGE_WITH_GFP" != 0 ; then
 316         AC_DEFINE(HAVE_RELEASEPAGE_WITH_GFP, 1,
 317                   [releasepage with gfp_t parameter])
 318         AC_MSG_RESULT([yes])
 319 else
 320         AC_MSG_RESULT([no])
 321 fi
 322 ])
 323
 324 #
 325 # between 2.6.5 - 2.6.22 filemap_populate is exported in some kernels
 326 #
 327 AC_DEFUN([LC_FILEMAP_POPULATE],
 328 [AC_MSG_CHECKING([for exported filemap_populate])
 329 LB_LINUX_TRY_COMPILE([
 330         #include <asm/page.h>
 331         #include <linux/mm.h>
 332 ],[
 333        filemap_populate(NULL, 0, 0, __pgprot(0), 0, 0);
 334 ],[
 335         AC_MSG_RESULT([yes])
 336         AC_DEFINE(HAVE_FILEMAP_POPULATE, 1, [Kernel exports filemap_populate])
 337 ],[
 338         AC_MSG_RESULT([no])
 339 ])
 340 ])
 341
 342 #
 343 # added in 2.6.15
 344 #
 345 AC_DEFUN([LC_D_ADD_UNIQUE],
 346 [AC_MSG_CHECKING([for d_add_unique])
 347 LB_LINUX_TRY_COMPILE([
 348         #include <linux/dcache.h>
 349 ],[
 350        d_add_unique(NULL, NULL);
 351 ],[
 352         AC_MSG_RESULT([yes])
 353         AC_DEFINE(HAVE_D_ADD_UNIQUE, 1, [Kernel has d_add_unique])
 354 ],[
 355         AC_MSG_RESULT([no])
 356 ])
 357 ])
 358
 359 #
 360 # added in 2.6.17
 361 #
 362 AC_DEFUN([LC_BIT_SPINLOCK_H],
 363 [LB_CHECK_FILE([$LINUX/include/linux/bit_spinlock.h],[
 364         AC_MSG_CHECKING([if bit_spinlock.h can be compiled])
 365         LB_LINUX_TRY_COMPILE([
 366                 #include <asm/processor.h>
 367                 #include <linux/spinlock.h>
 368                 #include <linux/bit_spinlock.h>
 369         ],[],[
 370                 AC_MSG_RESULT([yes])
 371                 AC_DEFINE(HAVE_BIT_SPINLOCK_H, 1, [Kernel has bit_spinlock.h])
 372         ],[
 373                 AC_MSG_RESULT([no])
 374         ])
 375 ],
 376 [])
 377 ])
 378
 379 #
 380 # After 2.6.26 we no longer have xattr_acl.h
 381 #
 382 AC_DEFUN([LC_XATTR_ACL],
 383 [LB_CHECK_FILE([$LINUX/include/linux/xattr_acl.h],[
 384         AC_MSG_CHECKING([if xattr_acl.h can be compiled])
 385         LB_LINUX_TRY_COMPILE([
 386                 #include <linux/xattr_acl.h>
 387         ],[],[
 388                 AC_MSG_RESULT([yes])
 389                 AC_DEFINE(HAVE_XATTR_ACL, 1, [Kernel has xattr_acl])
 390         ],[
 391                 AC_MSG_RESULT([no])
 392         ])
 393 ],
 394 [])
 395 ])
 396
 397
 398 # added in 2.6.16
 399 #
 400 AC_DEFUN([LC_STRUCT_INTENT_FILE],
 401 [AC_MSG_CHECKING([if struct open_intent has a file field])
 402 LB_LINUX_TRY_COMPILE([
 403         #include <linux/fs.h>
 404         #include <linux/namei.h>
 405 ],[
 406         struct open_intent intent;
 407         &intent.file;
 408 ],[
 409         AC_MSG_RESULT([yes])
 410         AC_DEFINE(HAVE_FILE_IN_STRUCT_INTENT, 1, [struct open_intent has a file field])
 411 ],[
 412         AC_MSG_RESULT([no])
 413 ])
 414 ])
 415
 416
 417 #
 418 # After 2.6.16 the xattr_acl API is removed, and posix_acl is used instead
 419 #
 420 AC_DEFUN([LC_POSIX_ACL_XATTR_H],
 421 [LB_CHECK_FILE([$LINUX/include/linux/posix_acl_xattr.h],[
 422         AC_MSG_CHECKING([if linux/posix_acl_xattr.h can be compiled])
 423         LB_LINUX_TRY_COMPILE([
 424                 #include <linux/posix_acl_xattr.h>
 425         ],[],[
 426                 AC_MSG_RESULT([yes])
 427                 AC_DEFINE(HAVE_LINUX_POSIX_ACL_XATTR_H, 1, [linux/posix_acl_xattr.h found])
 428
 429         ],[
 430                 AC_MSG_RESULT([no])
 431         ])
 432 $1
 433 ],[
 434 AC_MSG_RESULT([no])
 435 ])
 436 ])
 437
 438 #
 439 # LC_EXPORT___IGET
 440 # starting from 2.6.19 linux kernel exports __iget()
 441 #
 442 AC_DEFUN([LC_EXPORT___IGET],
 443 [LB_CHECK_SYMBOL_EXPORT([__iget],
 444 [fs/inode.c],[
 445         AC_DEFINE(HAVE_EXPORT___IGET, 1, [kernel exports __iget])
 446 ],[
 447 ])
 448 ])
 449
 450 #
 451 # only for Lustre-patched kernels
 452 #
 453 AC_DEFUN([LC_LUSTRE_VERSION_H],
 454 [LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
 455         rm -f "$LUSTRE/include/linux/lustre_version.h"
 456 ],[
 457         touch "$LUSTRE/include/linux/lustre_version.h"
 458         if test x$enable_server = xyes ; then
 459                 AC_MSG_WARN([Unpatched kernel detected.])
 460                 AC_MSG_WARN([Lustre servers cannot be built with an unpatched kernel;])
 461                 AC_MSG_WARN([disabling server build])
 462                 enable_server='no'
 463         fi
 464 ])
 465 ])
 466
 467 #
 468 # LC_CAPA_CRYPTO
 469 #
 470 AC_DEFUN([LC_CAPA_CRYPTO],
 471 [LB_LINUX_CONFIG_IM([CRYPTO],[],[
 472         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])
 473 ])
 474 LB_LINUX_CONFIG_IM([CRYPTO_HMAC],[],[
 475         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])
 476 ])
 477 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],[
 478         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])
 479 ])
 480 ])
 481
 482 #
 483 # LC_CONFIG_RMTCLIENT
 484 #
 485 dnl FIXME
 486 dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
 487 dnl FIXME
 488 AC_DEFUN([LC_CONFIG_RMTCLIENT],
 489 [LB_LINUX_CONFIG_IM([CRYPTO_AES],[],[
 490         AC_MSG_WARN([Lustre remote client require that CONFIG_CRYPTO_AES is enabled in your kernel.])
 491 ])
 492 ])
 493
 494 AC_DEFUN([LC_SUNRPC_CACHE],
 495 [AC_MSG_CHECKING([if sunrpc struct cache_head uses kref])
 496 LB_LINUX_TRY_COMPILE([
 497         #include <linux/sunrpc/cache.h>
 498 ],[
 499         struct cache_head ch;
 500         &ch.ref.refcount;
 501 ],[
 502         AC_MSG_RESULT([yes])
 503         AC_DEFINE(HAVE_SUNRPC_CACHE_V2, 1, [sunrpc cache facility v2])
 504 ],[
 505         AC_MSG_RESULT([no])
 506 ])
 507 ])
 508
 509 AC_DEFUN([LC_CONFIG_SUNRPC],
 510 [LB_LINUX_CONFIG_IM([SUNRPC],[],
 511                     [AC_MSG_ERROR([kernel SUNRPC support is required by using GSS.])])
 512  LC_SUNRPC_CACHE
 513 ])
 514
 515 #
 516 # LC_CONFIG_GSS_KEYRING (default enabled, if gss is enabled)
 517 #
 518 AC_DEFUN([LC_CONFIG_GSS_KEYRING],
 519 [AC_MSG_CHECKING([whether to enable gss keyring backend])
 520  AC_ARG_ENABLE([gss_keyring],
 521                [AC_HELP_STRING([--disable-gss-keyring],
 522                                [disable gss keyring backend])],
 523                [],[enable_gss_keyring='yes'])
 524  AC_MSG_RESULT([$enable_gss_keyring])
 525
 526  if test x$enable_gss_keyring != xno; then
 527         LB_LINUX_CONFIG_IM([KEYS],[],
 528                            [AC_MSG_ERROR([GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.])])
 529
 530         AC_CHECK_LIB([keyutils], [keyctl_search], [],
 531                      [AC_MSG_ERROR([libkeyutils is not found, which is required by gss keyring backend])],)
 532
 533         AC_DEFINE([HAVE_GSS_KEYRING], [1],
 534                   [Define this if you enable gss keyring backend])
 535  fi
 536 ])
 537
 538 #
 539 # LC_CONFIG_GSS (default disabled)
 540 #
 541 # Build gss and related tools of Lustre. Currently both kernel and user space
 542 # parts are depend on linux platform.
 543 #
 544 AC_DEFUN([LC_CONFIG_GSS],
 545 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
 546  AC_ARG_ENABLE([gss],
 547                [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
 548                [],[enable_gss='no'])
 549  AC_MSG_RESULT([$enable_gss])
 550
 551  if test x$enable_gss == xyes; then
 552         LC_CONFIG_GSS_KEYRING
 553         LC_CONFIG_SUNRPC
 554
 555         AC_DEFINE([HAVE_GSS], [1], [Define this if you enable gss])
 556
 557         LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
 558                            [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
 559         LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
 560                            [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
 561         LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
 562                            [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
 563         LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
 564                            [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
 565
 566         AC_CHECK_LIB([gssapi], [gss_init_sec_context],
 567                      [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"],
 568                      [AC_CHECK_LIB([gssglue], [gss_init_sec_context],
 569                                    [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue"],
 570                                    [AC_MSG_ERROR([libgssapi or libgssglue is not found, which is required by GSS.])])],)
 571
 572         AC_SUBST(GSSAPI_LIBS)
 573
 574         AC_KERBEROS_V5
 575  fi
 576 ])
 577
 578 # LC_EXPORT_SYNCHRONIZE_RCU
 579 # after 2.6.12 synchronize_rcu is preferred over synchronize_kernel
 580 AC_DEFUN([LC_EXPORT_SYNCHRONIZE_RCU],
 581 [LB_CHECK_SYMBOL_EXPORT([synchronize_rcu],
 582 [kernel/rcupdate.c],[
 583         AC_DEFINE(HAVE_SYNCHRONIZE_RCU, 1,
 584                 [in 2.6.12 synchronize_rcu preferred over synchronize_kernel])
 585 ],[
 586 ])
 587 ])
 588
 589 # LC_INODE_I_MUTEX
 590 # after 2.6.15 inode have i_mutex intead of i_sem
 591 AC_DEFUN([LC_INODE_I_MUTEX],
 592 [AC_MSG_CHECKING([if inode has i_mutex ])
 593 LB_LINUX_TRY_COMPILE([
 594         #include <linux/mutex.h>
 595         #include <linux/fs.h>
 596         #undef i_mutex
 597 ],[
 598         struct inode i;
 599
 600         mutex_unlock(&i.i_mutex);
 601 ],[
 602         AC_MSG_RESULT(yes)
 603         AC_DEFINE(HAVE_INODE_I_MUTEX, 1,
 604                 [after 2.6.15 inode have i_mutex intead of i_sem])
 605 ],[
 606         AC_MSG_RESULT(no)
 607 ])
 608 ])
 609
 610 # LC_SEQ_LOCK
 611 # after 2.6.18 seq_file has lock intead of sem
 612 AC_DEFUN([LC_SEQ_LOCK],
 613 [AC_MSG_CHECKING([if struct seq_file has lock field])
 614 LB_LINUX_TRY_COMPILE([
 615         #include <linux/seq_file.h>
 616 ],[
 617         struct seq_file seq;
 618
 619         mutex_unlock(&seq.lock);
 620 ],[
 621         AC_MSG_RESULT(yes)
 622         AC_DEFINE(HAVE_SEQ_LOCK, 1,
 623                 [after 2.6.18 seq_file has lock intead of sem])
 624 ],[
 625         AC_MSG_RESULT(NO)
 626 ])
 627 ])
 628
 629 # LC_DQUOTOFF_MUTEX
 630 # after 2.6.17 dquote use mutex instead if semaphore
 631 AC_DEFUN([LC_DQUOTOFF_MUTEX],
 632 [AC_MSG_CHECKING([use dqonoff_mutex])
 633 LB_LINUX_TRY_COMPILE([
 634         #include <linux/mutex.h>
 635         #include <linux/fs.h>
 636         #include <linux/quota.h>
 637 ],[
 638         struct quota_info dq;
 639
 640         mutex_unlock(&dq.dqonoff_mutex);
 641 ],[
 642         AC_MSG_RESULT(yes)
 643         AC_DEFINE(HAVE_DQUOTOFF_MUTEX, 1,
 644                 [after 2.6.17 dquote use mutex instead if semaphore])
 645 ],[
 646         AC_MSG_RESULT(no)
 647 ])
 648 ])
 649
 650 #
 651 # LC_STATFS_DENTRY_PARAM
 652 # starting from 2.6.18 linux kernel uses dentry instead of
 653 # super_block for first vfs_statfs argument
 654 #
 655 AC_DEFUN([LC_STATFS_DENTRY_PARAM],
 656 [AC_MSG_CHECKING([first vfs_statfs parameter is dentry])
 657 LB_LINUX_TRY_COMPILE([
 658         #include <linux/fs.h>
 659 ],[
 660         int vfs_statfs(struct dentry *, struct kstatfs *);
 661 ],[
 662         AC_DEFINE(HAVE_STATFS_DENTRY_PARAM, 1,
 663                 [first parameter of vfs_statfs is dentry])
 664         AC_MSG_RESULT([yes])
 665 ],[
 666         AC_MSG_RESULT([no])
 667 ])
 668 ])
 669
 670 #
 671 # LC_VFS_KERN_MOUNT
 672 # starting from 2.6.18 kernel don't export do_kern_mount
 673 # and want to use vfs_kern_mount instead.
 674 #
 675 AC_DEFUN([LC_VFS_KERN_MOUNT],
 676 [AC_MSG_CHECKING([vfs_kern_mount exist in kernel])
 677 LB_LINUX_TRY_COMPILE([
 678         #include <linux/mount.h>
 679 ],[
 680         vfs_kern_mount(NULL, 0, NULL, NULL);
 681 ],[
 682         AC_DEFINE(HAVE_VFS_KERN_MOUNT, 1,
 683                 [vfs_kern_mount exist in kernel])
 684         AC_MSG_RESULT([yes])
 685 ],[
 686         AC_MSG_RESULT([no])
 687 ])
 688 ])
 689
 690 #
 691 # LC_D_OBTAIN_ALIAS
 692 # starting from 2.6.18 kernel don't export do_kern_mount
 693 # and want to use vfs_kern_mount instead.
 694 #
 695 AC_DEFUN([LC_D_OBTAIN_ALIAS],
 696 [AC_MSG_CHECKING([d_obtain_alias exist in kernel])
 697 LB_LINUX_TRY_COMPILE([
 698         #include <linux/dcache.h>
 699 ],[
 700         d_obtain_alias(NULL);
 701 ],[
 702         AC_DEFINE(HAVE_D_OBTAIN_ALIAS, 1,
 703                 [d_obtain_alias exist in kernel])
 704         AC_MSG_RESULT([yes])
 705 ],[
 706         AC_MSG_RESULT([no])
 707 ])
 708 ])
 709
 710 #
 711 # LC_INVALIDATEPAGE_RETURN_INT
 712 # 2.6.17 changes return type for invalidatepage to 'void' from 'int'
 713 #
 714 AC_DEFUN([LC_INVALIDATEPAGE_RETURN_INT],
 715 [AC_MSG_CHECKING([invalidatepage has return int])
 716 LB_LINUX_TRY_COMPILE([
 717         #include <linux/buffer_head.h>
 718 ],[
 719         int rc = block_invalidatepage(NULL, 0);
 720 ],[
 721         AC_MSG_RESULT(yes)
 722         AC_DEFINE(HAVE_INVALIDATEPAGE_RETURN_INT, 1,
 723                 [Define if return type of invalidatepage should be int])
 724 ],[
 725         AC_MSG_RESULT(no)
 726 ])
 727 ])
 728
 729 # LC_UMOUNTBEGIN_HAS_VFSMOUNT
 730 # after 2.6.18 umount_begin has different parameters
 731 AC_DEFUN([LC_UMOUNTBEGIN_HAS_VFSMOUNT],
 732 [AC_MSG_CHECKING([if umount_begin needs vfsmount parameter instead of super_block])
 733 tmp_flags="$EXTRA_KCFLAGS"
 734 EXTRA_KCFLAGS="-Werror"
 735 LB_LINUX_TRY_COMPILE([
 736         #include <linux/fs.h>
 737
 738         struct vfsmount;
 739         static void cfg_umount_begin (struct vfsmount *v, int flags)
 740         {
 741                 ;
 742         }
 743
 744         static struct super_operations cfg_super_operations = {
 745                 .umount_begin   = cfg_umount_begin,
 746         };
 747 ],[
 748         cfg_super_operations.umount_begin(NULL,0);
 749 ],[
 750         AC_MSG_RESULT(yes)
 751         AC_DEFINE(HAVE_UMOUNTBEGIN_VFSMOUNT, 1,
 752                 [Define umount_begin need second argument])
 753 ],[
 754         AC_MSG_RESULT(no)
 755 ])
 756 EXTRA_KCFLAGS="$tmp_flags"
 757 ])
 758
 759 # inode have i_private field since 2.6.17
 760 AC_DEFUN([LC_INODE_IPRIVATE],
 761 [AC_MSG_CHECKING([if inode has a i_private field])
 762 LB_LINUX_TRY_COMPILE([
 763 #include <linux/fs.h>
 764 ],[
 765         struct inode i;
 766         i.i_private = NULL;
 767 ],[
 768         AC_MSG_RESULT(yes)
 769         AC_DEFINE(HAVE_INODE_IPRIVATE, 1,
 770                 [struct inode has i_private field])
 771 ],[
 772         AC_MSG_RESULT(no)
 773 ])
 774 ])
 775
 776 # 2.6.19 API changes
 777 # inode don't have i_blksize field
 778 AC_DEFUN([LC_INODE_BLKSIZE],
 779 [AC_MSG_CHECKING([inode has i_blksize field])
 780 LB_LINUX_TRY_COMPILE([
 781 #include <linux/fs.h>
 782 ],[
 783         struct inode i;
 784         i.i_blksize = 0;
 785 ],[
 786         AC_MSG_RESULT(yes)
 787         AC_DEFINE(HAVE_INODE_BLKSIZE, 1,
 788                 [struct inode has i_blksize field])
 789 ],[
 790         AC_MSG_RESULT(no)
 791 ])
 792 ])
 793
 794 # LC_VFS_READDIR_U64_INO
 795 # 2.6.19 use u64 for inode number instead of inode_t
 796 AC_DEFUN([LC_VFS_READDIR_U64_INO],
 797 [AC_MSG_CHECKING([check vfs_readdir need 64bit inode number])
 798 tmp_flags="$EXTRA_KCFLAGS"
 799 EXTRA_KCFLAGS="-Werror"
 800 LB_LINUX_TRY_COMPILE([
 801 #include <linux/fs.h>
 802         int fillonedir(void * __buf, const char * name, int namlen, loff_t offset,
 803                       u64 ino, unsigned int d_type)
 804         {
 805                 return 0;
 806         }
 807 ],[
 808         filldir_t filter;
 809
 810         filter = fillonedir;
 811         return 1;
 812 ],[
 813         AC_MSG_RESULT(yes)
 814         AC_DEFINE(HAVE_VFS_READDIR_U64_INO, 1,
 815                 [if vfs_readdir need 64bit inode number])
 816 ],[
 817         AC_MSG_RESULT(no)
 818 ])
 819 EXTRA_KCFLAGS="$tmp_flags"
 820 ])
 821
 822 # LC_FILE_WRITEV
 823 # 2.6.19 replaced writev with aio_write
 824 AC_DEFUN([LC_FILE_WRITEV],
 825 [AC_MSG_CHECKING([writev in fops])
 826 LB_LINUX_TRY_COMPILE([
 827         #include <linux/fs.h>
 828 ],[
 829         struct file_operations *fops = NULL;
 830         fops->writev = NULL;
 831 ],[
 832         AC_MSG_RESULT(yes)
 833         AC_DEFINE(HAVE_FILE_WRITEV, 1,
 834                 [use fops->writev])
 835 ],[
 836         AC_MSG_RESULT(no)
 837 ])
 838 ])
 839
 840 # LC_GENERIC_FILE_READ
 841 # 2.6.19 replaced readv with aio_read
 842 AC_DEFUN([LC_FILE_READV],
 843 [AC_MSG_CHECKING([readv in fops])
 844 LB_LINUX_TRY_COMPILE([
 845         #include <linux/fs.h>
 846 ],[
 847         struct file_operations *fops = NULL;
 848         fops->readv = NULL;
 849 ],[
 850         AC_MSG_RESULT(yes)
 851         AC_DEFINE(HAVE_FILE_READV, 1,
 852                 [use fops->readv])
 853 ],[
 854         AC_MSG_RESULT(no)
 855 ])
 856 ])
 857
 858 # LC_NR_PAGECACHE
 859 # 2.6.18 don't export nr_pagecahe
 860 AC_DEFUN([LC_NR_PAGECACHE],
 861 [AC_MSG_CHECKING([kernel export nr_pagecache])
 862 LB_LINUX_TRY_COMPILE([
 863         #include <linux/pagemap.h>
 864 ],[
 865         return atomic_read(&nr_pagecache);
 866 ],[
 867         AC_MSG_RESULT(yes)
 868         AC_DEFINE(HAVE_NR_PAGECACHE, 1,
 869                 [is kernel export nr_pagecache])
 870 ],[
 871         AC_MSG_RESULT(no)
 872 ])
 873 ])
 874
 875 # LC_CANCEL_DIRTY_PAGE
 876 # 2.6.20 introduced cancel_dirty_page instead of clear_page_dirty.
 877 AC_DEFUN([LC_CANCEL_DIRTY_PAGE],
 878         [AC_MSG_CHECKING([kernel has cancel_dirty_page])
 879         # the implementation of cancel_dirty_page in OFED 1.4.1's SLES10 SP2
 880         # backport is broken, so ignore it
 881         if test -f $OFED_BACKPORT_PATH/linux/mm.h &&
 882            test "$(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
 883                 AC_MSG_RESULT(no)
 884         else
 885                 LB_LINUX_TRY_COMPILE([
 886                         #include <linux/mm.h>
 887                         #include <linux/page-flags.h>
 888 ],[
 889                         cancel_dirty_page(NULL, 0);
 890 ],[
 891                         AC_MSG_RESULT(yes)
 892                         AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
 893                                   [kernel has cancel_dirty_page instead of clear_page_dirty])
 894 ],[
 895                         AC_MSG_RESULT(no)
 896 ])
 897         fi
 898 ])
 899
 900 #
 901 # LC_PAGE_CONSTANT
 902 #
 903 # In order to support raid5 zerocopy patch, we have to patch the kernel to make
 904 # it support constant page, which means the page won't be modified during the
 905 # IO.
 906 #
 907 AC_DEFUN([LC_PAGE_CONSTANT],
 908 [AC_MSG_CHECKING([if kernel have PageConstant defined])
 909 LB_LINUX_TRY_COMPILE([
 910         #include <linux/mm.h>
 911         #include <linux/page-flags.h>
 912 ],[
 913         #ifndef PG_constant
 914         #error "Have no raid5 zcopy patch"
 915         #endif
 916 ],[
 917         AC_MSG_RESULT(yes)
 918         AC_DEFINE(HAVE_PAGE_CONSTANT, 1, [kernel have PageConstant supported])
 919 ],[
 920         AC_MSG_RESULT(no);
 921 ])
 922 ])
 923
 924 # RHEL5 in FS-cache patch rename PG_checked flag into PG_fs_misc
 925 AC_DEFUN([LC_PG_FS_MISC],
 926 [AC_MSG_CHECKING([kernel has PG_fs_misc])
 927 LB_LINUX_TRY_COMPILE([
 928         #include <linux/mm.h>
 929         #include <linux/page-flags.h>
 930 ],[
 931         #ifndef PG_fs_misc
 932         #error PG_fs_misc not defined in kernel
 933         #endif
 934 ],[
 935         AC_MSG_RESULT(yes)
 936         AC_DEFINE(HAVE_PG_FS_MISC, 1,
 937                   [is kernel have PG_fs_misc])
 938 ],[
 939         AC_MSG_RESULT(no)
 940 ])
 941 ])
 942
 943 # RHEL5 PageChecked and SetPageChecked defined
 944 AC_DEFUN([LC_PAGE_CHECKED],
 945 [AC_MSG_CHECKING([kernel has PageChecked and SetPageChecked])
 946 LB_LINUX_TRY_COMPILE([
 947         #include <linux/autoconf.h>
 948 #ifdef HAVE_LINUX_MMTYPES_H
 949         #include <linux/mm_types.h>
 950 #endif
 951         #include <linux/page-flags.h>
 952 ],[
 953         struct page *p;
 954
 955         /* before 2.6.26 this define*/
 956         #ifndef PageChecked
 957         /* 2.6.26 use function instead of define for it */
 958         SetPageChecked(p);
 959         PageChecked(p);
 960         #endif
 961 ],[
 962         AC_MSG_RESULT(yes)
 963         AC_DEFINE(HAVE_PAGE_CHECKED, 1,
 964                   [does kernel have PageChecked and SetPageChecked])
 965 ],[
 966         AC_MSG_RESULT(no)
 967 ])
 968 ])
 969
 970 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE],
 971 [LB_CHECK_SYMBOL_EXPORT([truncate_complete_page],
 972 [mm/truncate.c],[
 973 AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
 974             [kernel export truncate_complete_page])
 975 ],[
 976 ])
 977 ])
 978
 979 AC_DEFUN([LC_EXPORT_TRUNCATE_RANGE],
 980 [LB_CHECK_SYMBOL_EXPORT([truncate_inode_pages_range],
 981 [mm/truncate.c],[
 982 AC_DEFINE(HAVE_TRUNCATE_RANGE, 1,
 983             [kernel export truncate_inode_pages_range])
 984 ],[
 985 ])
 986 ])
 987
 988 AC_DEFUN([LC_EXPORT_D_REHASH_COND],
 989 [LB_CHECK_SYMBOL_EXPORT([d_rehash_cond],
 990 [fs/dcache.c],[
 991 AC_DEFINE(HAVE_D_REHASH_COND, 1,
 992             [d_rehash_cond is exported by the kernel])
 993 ],[
 994 ])
 995 ])
 996
 997 AC_DEFUN([LC_EXPORT___D_REHASH],
 998 [LB_CHECK_SYMBOL_EXPORT([__d_rehash],
 999 [fs/dcache.c],[
1000 AC_DEFINE(HAVE___D_REHASH, 1,
1001             [__d_rehash is exported by the kernel])
1002 ],[
1003 ])
1004 ])
1005
1006 AC_DEFUN([LC_EXPORT_D_MOVE_LOCKED],
1007 [LB_CHECK_SYMBOL_EXPORT([d_move_locked],
1008 [fs/dcache.c],[
1009 AC_DEFINE(HAVE_D_MOVE_LOCKED, 1,
1010             [d_move_locked is exported by the kernel])
1011 ],[
1012 ])
1013 ])
1014
1015 AC_DEFUN([LC_EXPORT___D_MOVE],
1016 [LB_CHECK_SYMBOL_EXPORT([__d_move],
1017 [fs/dcache.c],[
1018 AC_DEFINE(HAVE___D_MOVE, 1,
1019             [__d_move is exported by the kernel])
1020 ],[
1021 ])
1022 ])
1023
1024 #
1025 # LC_EXPORT_INVALIDATE_MAPPING_PAGES
1026 #
1027 # SLES9, RHEL4, RHEL5, vanilla 2.6.24 export invalidate_mapping_pages() but
1028 # SLES10 2.6.16 does not, for some reason.  For filter cache invalidation.
1029 #
1030 AC_DEFUN([LC_EXPORT_INVALIDATE_MAPPING_PAGES],
1031     [LB_CHECK_SYMBOL_EXPORT([invalidate_mapping_pages], [mm/truncate.c], [
1032          AC_DEFINE(HAVE_INVALIDATE_MAPPING_PAGES, 1,
1033                         [exported invalidate_mapping_pages])],
1034     [LB_CHECK_SYMBOL_EXPORT([invalidate_inode_pages], [mm/truncate.c], [
1035          AC_DEFINE(HAVE_INVALIDATE_INODE_PAGES, 1,
1036                         [exported invalidate_inode_pages])], [
1037        AC_MSG_ERROR([no way to invalidate pages])
1038   ])
1039     ],[])
1040 ])
1041
1042 #
1043 # LC_EXPORT_FILEMAP_FDATASYNC_RANGE
1044 #
1045 # No standard kernels export this
1046 #
1047 AC_DEFUN([LC_EXPORT_FILEMAP_FDATAWRITE_RANGE],
1048 [LB_CHECK_SYMBOL_EXPORT([filemap_fdatawrite_range],
1049 [mm/filemap.c],[
1050 AC_DEFINE(HAVE_FILEMAP_FDATAWRITE_RANGE, 1,
1051             [filemap_fdatawrite_range is exported by the kernel])
1052 ],[
1053 ])
1054 ])
1055
1056 # The actual symbol exported varies among architectures, so we need
1057 # to check many symbols (but only in the current architecture.)  No
1058 # matter what symbol is exported, the kernel #defines node_to_cpumask
1059 # to the appropriate function and that's what we use.
1060 AC_DEFUN([LC_EXPORT_NODE_TO_CPUMASK],
1061          [LB_CHECK_SYMBOL_EXPORT([node_to_cpumask],
1062                                  [arch/$LINUX_ARCH/mm/numa.c],
1063                                  [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1064                                             [node_to_cpumask is exported by
1065                                              the kernel])]) # x86_64
1066           LB_CHECK_SYMBOL_EXPORT([node_to_cpu_mask],
1067                                  [arch/$LINUX_ARCH/kernel/smpboot.c],
1068                                  [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1069                                             [node_to_cpumask is exported by
1070                                              the kernel])]) # ia64
1071           LB_CHECK_SYMBOL_EXPORT([node_2_cpu_mask],
1072                                  [arch/$LINUX_ARCH/kernel/smpboot.c],
1073                                  [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1074                                             [node_to_cpumask is exported by
1075                                              the kernel])]) # i386
1076           ])
1077
1078 # 2.6.22 lost second parameter for invalidate_bdev
1079 AC_DEFUN([LC_INVALIDATE_BDEV_2ARG],
1080 [AC_MSG_CHECKING([if invalidate_bdev has second argument])
1081 LB_LINUX_TRY_COMPILE([
1082         #include <linux/buffer_head.h>
1083 ],[
1084         invalidate_bdev(NULL,0);
1085 ],[
1086         AC_MSG_RESULT([yes])
1087         AC_DEFINE(HAVE_INVALIDATE_BDEV_2ARG, 1,
1088                 [invalidate_bdev has second argument])
1089 ],[
1090         AC_MSG_RESULT([no])
1091 ])
1092 ])
1093
1094 # 2.6.18
1095
1096
1097 # 2.6.23 have return type 'void' for unregister_blkdev
1098 AC_DEFUN([LC_UNREGISTER_BLKDEV_RETURN_INT],
1099 [AC_MSG_CHECKING([if unregister_blkdev return int])
1100 LB_LINUX_TRY_COMPILE([
1101         #include <linux/fs.h>
1102 ],[
1103         int i = unregister_blkdev(0,NULL);
1104 ],[
1105         AC_MSG_RESULT([yes])
1106         AC_DEFINE(HAVE_UNREGISTER_BLKDEV_RETURN_INT, 1,
1107                 [unregister_blkdev return int])
1108 ],[
1109         AC_MSG_RESULT([no])
1110 ])
1111 ])
1112
1113 # 2.6.23 change .sendfile to .splice_read
1114 # RHEL4 (-92 kernel) have both sendfile and .splice_read API
1115 AC_DEFUN([LC_KERNEL_SENDFILE],
1116 [AC_MSG_CHECKING([if kernel has .sendfile])
1117 LB_LINUX_TRY_COMPILE([
1118         #include <linux/fs.h>
1119 ],[
1120         struct file_operations file;
1121
1122         file.sendfile = NULL;
1123 ], [
1124         AC_MSG_RESULT([yes])
1125         AC_DEFINE(HAVE_KERNEL_SENDFILE, 1,
1126                 [kernel has .sendfile])
1127 ],[
1128         AC_MSG_RESULT([no])
1129 ])
1130 ])
1131
1132 # 2.6.23 change .sendfile to .splice_read
1133 AC_DEFUN([LC_KERNEL_SPLICE_READ],
1134 [AC_MSG_CHECKING([if kernel has .splice_read])
1135 LB_LINUX_TRY_COMPILE([
1136         #include <linux/fs.h>
1137 ],[
1138         struct file_operations file;
1139
1140         file.splice_read = NULL;
1141 ], [
1142         AC_MSG_RESULT([yes])
1143         AC_DEFINE(HAVE_KERNEL_SPLICE_READ, 1,
1144                 [kernel has .slice_read])
1145 ],[
1146         AC_MSG_RESULT([no])
1147 ])
1148 ])
1149
1150 # 2.6.23 extract nfs export related data into exportfs.h
1151 AC_DEFUN([LC_HAVE_EXPORTFS_H],
1152 [LB_CHECK_FILE([$LINUX/include/linux/exportfs.h], [
1153         AC_DEFINE(HAVE_LINUX_EXPORTFS_H, 1,
1154                 [kernel has include/exportfs.h])
1155 ],[
1156         AC_MSG_RESULT([no])
1157 ])
1158 ])
1159
1160 # 2.6.23 has new page fault handling API
1161 AC_DEFUN([LC_VM_OP_FAULT],
1162 [AC_MSG_CHECKING([kernel has .fault in vm_operation_struct])
1163 LB_LINUX_TRY_COMPILE([
1164         #include <linux/mm.h>
1165 ],[
1166         struct vm_operations_struct op;
1167
1168         op.fault = NULL;
1169 ], [
1170         AC_MSG_RESULT([yes])
1171         AC_DEFINE(HAVE_VM_OP_FAULT, 1,
1172                 [kernel has .fault in vm_operation_struct])
1173 ],[
1174         AC_MSG_RESULT([no])
1175 ])
1176 ])
1177
1178 #2.6.23 has new shrinker API
1179 AC_DEFUN([LC_REGISTER_SHRINKER],
1180 [AC_MSG_CHECKING([if kernel has register_shrinker])
1181 LB_LINUX_TRY_COMPILE([
1182         #include <linux/mm.h>
1183 ],[
1184         register_shrinker(NULL);
1185 ], [
1186         AC_MSG_RESULT([yes])
1187         AC_DEFINE(HAVE_REGISTER_SHRINKER, 1,
1188                 [kernel has register_shrinker])
1189 ],[
1190         AC_MSG_RESULT([no])
1191 ])
1192 ])
1193
1194 # 2.6.24 has bio_endio with 2 args
1195 AC_DEFUN([LC_BIO_ENDIO_2ARG],
1196 [AC_MSG_CHECKING([if kernel has bio_endio with 2 args])
1197 LB_LINUX_TRY_COMPILE([
1198         #include <linux/bio.h>
1199 ],[
1200         bio_endio(NULL, 0);
1201 ], [
1202         AC_MSG_RESULT([yes])
1203         AC_DEFINE(HAVE_BIO_ENDIO_2ARG, 1,
1204                 [kernel has bio_endio with 2 args])
1205 ],[
1206         AC_MSG_RESULT([no])
1207 ])
1208 ])
1209
1210 # 2.6.24 has new members in exports struct.
1211 AC_DEFUN([LC_FH_TO_DENTRY],
1212 [AC_MSG_CHECKING([if kernel has .fh_to_dentry member in export_operations struct])
1213 LB_LINUX_TRY_COMPILE([
1214 #ifdef HAVE_LINUX_EXPORTFS_H
1215         #include <linux/exportfs.h>
1216 #else
1217         #include <linux/fs.h>
1218 #endif
1219 ],[
1220         struct export_operations exp;
1221
1222         exp.fh_to_dentry   = NULL;
1223 ], [
1224         AC_MSG_RESULT([yes])
1225         AC_DEFINE(HAVE_FH_TO_DENTRY, 1,
1226                 [kernel has .fh_to_dentry member in export_operations struct])
1227 ],[
1228         AC_MSG_RESULT([no])
1229 ])
1230 ])
1231
1232 # 2.6.24 need linux/mm_types.h included
1233 AC_DEFUN([LC_HAVE_MMTYPES_H],
1234 [LB_CHECK_FILE([$LINUX/include/linux/mm_types.h], [
1235         AC_DEFINE(HAVE_LINUX_MMTYPES_H, 1,
1236                 [kernel has include/mm_types.h])
1237 ],[
1238         AC_MSG_RESULT([no])
1239 ])
1240 ])
1241
1242 # 2.6.24 removes long aged procfs entry -> deleted member
1243 AC_DEFUN([LC_PROCFS_DELETED],
1244 [AC_MSG_CHECKING([if kernel has deleted member in procfs entry struct])
1245 LB_LINUX_TRY_COMPILE([
1246         #include <linux/proc_fs.h>
1247 ],[
1248         struct proc_dir_entry pde;
1249
1250         pde.deleted   = NULL;
1251 ], [
1252         AC_MSG_RESULT([yes])
1253         AC_DEFINE(HAVE_PROCFS_DELETED, 1,
1254                 [kernel has deleted member in procfs entry struct])
1255 ],[
1256         AC_MSG_RESULT([no])
1257 ])
1258 ])
1259
1260 # 2.6.25 change define to inline
1261 AC_DEFUN([LC_MAPPING_CAP_WRITEBACK_DIRTY],
1262 [AC_MSG_CHECKING([if kernel have mapping_cap_writeback_dirty])
1263 LB_LINUX_TRY_COMPILE([
1264         #include <linux/backing-dev.h>
1265 ],[
1266         #ifndef mapping_cap_writeback_dirty
1267         mapping_cap_writeback_dirty(NULL);
1268         #endif
1269 ],[
1270         AC_MSG_RESULT([yes])
1271         AC_DEFINE(HAVE_MAPPING_CAP_WRITEBACK_DIRTY, 1,
1272                 [kernel have mapping_cap_writeback_dirty])
1273 ],[
1274         AC_MSG_RESULT([no])
1275 ])
1276 ])
1277
1278
1279
1280 # 2.6.26 isn't export set_fs_pwd and change paramter in fs struct
1281 AC_DEFUN([LC_FS_STRUCT_USE_PATH],
1282 [AC_MSG_CHECKING([fs_struct use path structure])
1283 LB_LINUX_TRY_COMPILE([
1284         #include <asm/atomic.h>
1285         #include <linux/spinlock.h>
1286         #include <linux/fs_struct.h>
1287 ],[
1288         struct path path;
1289         struct fs_struct fs;
1290
1291         fs.pwd = path;
1292 ], [
1293         AC_MSG_RESULT([yes])
1294         AC_DEFINE(HAVE_FS_STRUCT_USE_PATH, 1,
1295                 [fs_struct use path structure])
1296 ],[
1297         AC_MSG_RESULT([no])
1298 ])
1299 ])
1300
1301 #
1302 # LC_VFS_INTENT_PATCHES
1303 #
1304 # check if the kernel has the VFS intent patches
1305 AC_DEFUN([LC_VFS_INTENT_PATCHES],
1306 [AC_MSG_CHECKING([if the kernel has the VFS intent patches])
1307 LB_LINUX_TRY_COMPILE([
1308         #include <linux/fs.h>
1309         #include <linux/namei.h>
1310 ],[
1311         struct nameidata nd;
1312         struct lookup_intent *it;
1313
1314         it = &nd.intent;
1315         intent_init(it, IT_OPEN);
1316         it->d.lustre.it_disposition = 0;
1317         it->d.lustre.it_data = NULL;
1318 ],[
1319         AC_MSG_RESULT([yes])
1320         AC_DEFINE(HAVE_VFS_INTENT_PATCHES, 1, [VFS intent patches are applied])
1321 ],[
1322         AC_MSG_RESULT([no])
1323 ])
1324 ])
1325
1326 AC_DEFUN([LC_S_TIME_GRAN],
1327 [AC_MSG_CHECKING([if super block has s_time_gran member])
1328 LB_LINUX_TRY_COMPILE([
1329         #include <linux/fs.h>
1330 ],[
1331         struct super_block sb;
1332
1333         return sb.s_time_gran;
1334 ],[
1335         AC_MSG_RESULT([yes])
1336         AC_DEFINE(HAVE_S_TIME_GRAN, 1, [super block has s_time_gran member])
1337 ],[
1338         AC_MSG_RESULT([no])
1339 ])
1340 ])
1341
1342 AC_DEFUN([LC_SB_TIME_GRAN],
1343 [AC_MSG_CHECKING([if kernel has old get_sb_time_gran])
1344 LB_LINUX_TRY_COMPILE([
1345         #include <linux/fs.h>
1346 ],[
1347         return get_sb_time_gran(NULL);
1348 ],[
1349         AC_MSG_RESULT([yes])
1350         AC_DEFINE(HAVE_SB_TIME_GRAN, 1, [kernel has old get_sb_time_gran])
1351 ],[
1352         AC_MSG_RESULT([no])
1353 ])
1354 ])
1355
1356 #
1357 # LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
1358 #
1359 # Check for our patched grab_cache_page_nowait_gfp() function
1360 # after 2.6.29 we can emulate this using add_to_page_cache_lru()
1361 #
1362 AC_DEFUN([LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP],
1363 [LB_CHECK_SYMBOL_EXPORT([grab_cache_page_nowait_gfp],
1364 [mm/filemap.c],[
1365         AC_DEFINE(HAVE_GRAB_CACHE_PAGE_NOWAIT_GFP, 1,
1366                   [kernel exports grab_cache_page_nowait_gfp])
1367         ],
1368         [LB_CHECK_SYMBOL_EXPORT([add_to_page_cache_lru],
1369         [mm/filemap.c],[
1370                 AC_DEFINE(HAVE_ADD_TO_PAGE_CACHE_LRU, 1,
1371                         [kernel exports add_to_page_cache_lru])
1372         ],[
1373         ])
1374         ])
1375 ])
1376
1377 # ~2.6.12 merge patch from oracle to convert tree_lock from spinlock to rwlock
1378 AC_DEFUN([LC_RW_TREE_LOCK],
1379 [AC_MSG_CHECKING([if kernel has tree_lock as rwlock])
1380 tmp_flags="$EXTRA_KCFLAGS"
1381 EXTRA_KCFLAGS="-Werror"
1382 LB_LINUX_TRY_COMPILE([
1383         #include <linux/fs.h>
1384 ],[
1385         struct address_space a;
1386
1387         write_lock(&a.tree_lock);
1388 ],[
1389         AC_MSG_RESULT([yes])
1390         AC_DEFINE(HAVE_RW_TREE_LOCK, 1, [kernel has tree_lock as rw_lock])
1391 ],[
1392         AC_MSG_RESULT([no])
1393 ])
1394 EXTRA_KCFLAGS="$tmp_flags"
1395 ])
1396
1397 AC_DEFUN([LC_CONST_ACL_SIZE],
1398 [AC_MSG_CHECKING([calc acl size])
1399 tmp_flags="$CFLAGS"
1400 CFLAGS="$CFLAGS -I$LINUX/include -I$LINUX_OBJ/include -I$LINUX_OBJ/include2 $EXTRA_KCFLAGS"
1401 AC_TRY_RUN([
1402 #define __KERNEL__
1403 #include <linux/autoconf.h>
1404 #include <linux/types.h>
1405 #undef __KERNEL__
1406 // block include
1407 #define __LINUX_POSIX_ACL_H
1408
1409 # ifdef CONFIG_FS_POSIX_ACL
1410 #  ifdef HAVE_XATTR_ACL
1411 #   include <linux/xattr_acl.h>
1412 #  endif
1413 #  ifdef HAVE_LINUX_POSIX_ACL_XATTR_H
1414 #   include <linux/posix_acl_xattr.h>
1415 #  endif
1416 # endif
1417
1418 #include <lustre_acl.h>
1419
1420 #include <stdio.h>
1421
1422 int main(void)
1423 {
1424     int size = mds_xattr_acl_size(LUSTRE_POSIX_ACL_MAX_ENTRIES);
1425     FILE *f = fopen("acl.size","w+");
1426     fprintf(f,"%d", size);
1427     fclose(f);
1428
1429     return 0;
1430 }
1431
1432 ],[
1433         acl_size=`cat acl.size`
1434         AC_MSG_RESULT([ACL size $acl_size])
1435         AC_DEFINE_UNQUOTED(XATTR_ACL_SIZE, AS_TR_SH([$acl_size]), [size of xattr acl])
1436 ],[
1437         AC_ERROR([ACL size can't computed])
1438 ])
1439 CFLAGS="$tmp_flags"
1440 ])
1441
1442 #
1443 # check for crypto API
1444 #
1445 AC_DEFUN([LC_ASYNC_BLOCK_CIPHER],
1446 [AC_MSG_CHECKING([if kernel has block cipher support])
1447 LB_LINUX_TRY_COMPILE([
1448         #include <linux/err.h>
1449         #include <linux/crypto.h>
1450 ],[
1451         struct crypto_blkcipher *tfm;
1452         tfm = crypto_alloc_blkcipher("aes", 0, 0 );
1453 ],[
1454         AC_MSG_RESULT([yes])
1455         AC_DEFINE(HAVE_ASYNC_BLOCK_CIPHER, 1, [kernel has block cipher support])
1456 ],[
1457         AC_MSG_RESULT([no])
1458 ])
1459 ])
1460
1461 #
1462 # check for struct hash_desc
1463 #
1464 AC_DEFUN([LC_STRUCT_HASH_DESC],
1465 [AC_MSG_CHECKING([if kernel has struct hash_desc])
1466 LB_LINUX_TRY_COMPILE([
1467         #include <linux/err.h>
1468         #include <linux/crypto.h>
1469 ],[
1470         struct hash_desc foo;
1471 ],[
1472         AC_MSG_RESULT([yes])
1473         AC_DEFINE(HAVE_STRUCT_HASH_DESC, 1, [kernel has struct hash_desc])
1474 ],[
1475         AC_MSG_RESULT([no])
1476 ])
1477 ])
1478
1479 #
1480 # check for struct blkcipher_desc
1481 #
1482 AC_DEFUN([LC_STRUCT_BLKCIPHER_DESC],
1483 [AC_MSG_CHECKING([if kernel has struct blkcipher_desc])
1484 LB_LINUX_TRY_COMPILE([
1485         #include <linux/err.h>
1486         #include <linux/crypto.h>
1487 ],[
1488         struct blkcipher_desc foo;
1489 ],[
1490         AC_MSG_RESULT([yes])
1491         AC_DEFINE(HAVE_STRUCT_BLKCIPHER_DESC, 1, [kernel has struct blkcipher_desc])
1492 ],[
1493         AC_MSG_RESULT([no])
1494 ])
1495 ])
1496
1497 #
1498 # 2.6.19 check for FS_RENAME_DOES_D_MOVE flag
1499 #
1500 AC_DEFUN([LC_FS_RENAME_DOES_D_MOVE],
1501 [AC_MSG_CHECKING([if kernel has FS_RENAME_DOES_D_MOVE flag])
1502 LB_LINUX_TRY_COMPILE([
1503         #include <linux/fs.h>
1504 ],[
1505         int v = FS_RENAME_DOES_D_MOVE;
1506 ],[
1507         AC_MSG_RESULT([yes])
1508         AC_DEFINE(HAVE_FS_RENAME_DOES_D_MOVE, 1, [kernel has FS_RENAME_DOES_D_MOVE flag])
1509 ],[
1510         AC_MSG_RESULT([no])
1511 ])
1512 ])
1513
1514 #
1515 # LC_FUNC_F_OP_FLOCK
1516 #
1517 # rhel4.2 kernel has f_op->flock field
1518 #
1519 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
1520 [AC_MSG_CHECKING([if struct file_operations has flock field])
1521 LB_LINUX_TRY_COMPILE([
1522         #include <linux/fs.h>
1523 ],[
1524         struct file_operations ll_file_operations_flock;
1525         ll_file_operations_flock.flock = NULL;
1526 ],[
1527         AC_DEFINE(HAVE_F_OP_FLOCK, 1,
1528                 [struct file_operations has flock field])
1529         AC_MSG_RESULT([yes])
1530 ],[
1531         AC_MSG_RESULT([no])
1532 ])
1533 ])
1534
1535 # vfs_symlink seems to have started out with 3 args until 2.6.7 where a
1536 # "mode" argument was added, but then again, in some later version it was
1537 # removed
1538 AC_DEFUN([LC_4ARGS_VFS_SYMLINK],
1539 [AC_MSG_CHECKING([if vfs_symlink wants 4 args])
1540 LB_LINUX_TRY_COMPILE([
1541         #include <linux/fs.h>
1542 ],[
1543         struct inode *dir;
1544         struct dentry *dentry;
1545         const char *oldname = NULL;
1546         int mode = 0;
1547
1548         vfs_symlink(dir, dentry, oldname, mode);
1549 ],[
1550         AC_MSG_RESULT(yes)
1551         AC_DEFINE(HAVE_4ARGS_VFS_SYMLINK, 1,
1552                   [vfs_symlink wants 4 args])
1553 ],[
1554         AC_MSG_RESULT(no)
1555 ])
1556 ])
1557
1558 # 2.6.23 has new shrinker API
1559 AC_DEFUN([LC_REGISTER_SHRINKER],
1560 [LB_CHECK_SYMBOL_EXPORT([register_shrinker],
1561 [mm/vmscan.c],[
1562         AC_DEFINE(HAVE_REGISTER_SHRINKER, 1,
1563                   [kernel exports register_shrinker])
1564 ],[
1565 ])
1566 ])
1567
1568 #2.6.27
1569 AC_DEFUN([LC_INODE_PERMISION_2ARGS],
1570 [AC_MSG_CHECKING([inode_operations->permission has two args])
1571 LB_LINUX_TRY_COMPILE([
1572         #include <linux/fs.h>
1573 ],[
1574         struct inode *inode;
1575
1576         inode->i_op->permission(NULL,0);
1577 ],[
1578         AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
1579                   [inode_operations->permission has two args])
1580         AC_MSG_RESULT([yes])
1581 ],[
1582         AC_MSG_RESULT([no])
1583 ])
1584 ])
1585
1586 # 2.6.27 has file_remove_suid instead of remove_suid
1587 AC_DEFUN([LC_FILE_REMOVE_SUID],
1588 [AC_MSG_CHECKING([kernel has file_remove_suid])
1589 LB_LINUX_TRY_COMPILE([
1590         #include <linux/fs.h>
1591 ],[
1592         file_remove_suid(NULL);
1593 ],[
1594         AC_DEFINE(HAVE_FILE_REMOVE_SUID, 1,
1595                   [kernel have file_remove_suid])
1596         AC_MSG_RESULT([yes])
1597 ],[
1598         AC_MSG_RESULT([no])
1599 ])
1600 ])
1601
1602 # 2.6.27 have new page locking API
1603 AC_DEFUN([LC_TRYLOCKPAGE],
1604 [AC_MSG_CHECKING([kernel uses trylock_page for page lock])
1605 LB_LINUX_TRY_COMPILE([
1606         #include <linux/pagemap.h>
1607 ],[
1608         trylock_page(NULL);
1609 ],[
1610         AC_DEFINE(HAVE_TRYLOCK_PAGE, 1,
1611                   [kernel uses trylock_page for page lock])
1612         AC_MSG_RESULT([yes])
1613 ],[
1614         AC_MSG_RESULT([no])
1615 ])
1616 ])
1617
1618 # vfs_symlink seems to have started out with 3 args until 2.6.7 where a
1619 # "mode" argument was added, but then again, in some later version it was
1620 # removed
1621 AC_DEFUN([LC_4ARGS_VFS_SYMLINK],
1622 [AC_MSG_CHECKING([if vfs_symlink wants 4 args])
1623 LB_LINUX_TRY_COMPILE([
1624         #include <linux/fs.h>
1625 ],[
1626         struct inode *dir;
1627         struct dentry *dentry;
1628         const char *oldname = NULL;
1629         int mode = 0;
1630
1631         vfs_symlink(dir, dentry, oldname, mode);
1632 ],[
1633         AC_MSG_RESULT(yes)
1634         AC_DEFINE(HAVE_4ARGS_VFS_SYMLINK, 1,
1635                   [vfs_symlink wants 4 args])
1636 ],[
1637         AC_MSG_RESULT(no)
1638 ])
1639 ])
1640
1641 # 2.6.27 sles11 remove the bi_hw_segments
1642 AC_DEFUN([LC_BI_HW_SEGMENTS],
1643 [AC_MSG_CHECKING([struct bio has a bi_hw_segments field])
1644 LB_LINUX_TRY_COMPILE([
1645         #include <linux/bio.h>
1646 ],[
1647         struct bio io;
1648         io.bi_hw_segments = 0;
1649 ],[
1650         AC_DEFINE(HAVE_BI_HW_SEGMENTS, 1,
1651                 [struct bio has a bi_hw_segments field])
1652         AC_MSG_RESULT([yes])
1653 ],[
1654         AC_MSG_RESULT([no])
1655 ])
1656 ])
1657
1658 # 2.6.27 sles11 move the quotaio_v1.h to fs
1659 AC_DEFUN([LC_HAVE_QUOTAIO_V1_H],
1660 [LB_CHECK_FILE([$LINUX/include/linux/quotaio_v1.h],[
1661         AC_DEFINE(HAVE_QUOTAIO_V1_H, 1,
1662                 [kernel has include/linux/quotaio_v1.h])
1663 ],[
1664         AC_MSG_RESULT([no])
1665 ])
1666 ])
1667
1668 # sles10 sp2 need 5 parameter for vfs_symlink
1669 AC_DEFUN([LC_VFS_SYMLINK_5ARGS],
1670 [AC_MSG_CHECKING([vfs_symlink need 5 parameter])
1671 LB_LINUX_TRY_COMPILE([
1672         #include <linux/fs.h>
1673 ],[
1674         struct inode *dir = NULL;
1675         struct dentry *dentry = NULL;
1676         struct vfsmount *mnt = NULL;
1677         const char * path = NULL;
1678         vfs_symlink(dir, dentry, mnt, path, 0);
1679 ],[
1680         AC_DEFINE(HAVE_VFS_SYMLINK_5ARGS, 1,
1681                 [vfs_symlink need 5 parameteres])
1682         AC_MSG_RESULT([yes])
1683 ],[
1684         AC_MSG_RESULT([no])
1685 ])
1686 ])
1687
1688 # 2.6.27 removed the read_inode from super_operations.
1689 AC_DEFUN([LC_READ_INODE_IN_SBOPS],
1690 [AC_MSG_CHECKING([super_operations has a read_inode field])
1691 LB_LINUX_TRY_COMPILE([
1692         #include <linux/fs.h>
1693 ],[
1694         struct super_operations *sop;
1695         sop->read_inode(NULL);
1696 ],[
1697         AC_DEFINE(HAVE_READ_INODE_IN_SBOPS, 1,
1698                 [super_operations has a read_inode])
1699         AC_MSG_RESULT([yes])
1700 ],[
1701         AC_MSG_RESULT([no])
1702 ])
1703 ])
1704
1705 # 2.6.27 sles11 has sb_any_quota_active
1706 AC_DEFUN([LC_SB_ANY_QUOTA_ACTIVE],
1707 [AC_MSG_CHECKING([Kernel has sb_any_quota_active])
1708 LB_LINUX_TRY_COMPILE([
1709         #include <linux/quotaops.h>
1710 ],[
1711         sb_any_quota_active(NULL);
1712 ],[
1713         AC_DEFINE(HAVE_SB_ANY_QUOTA_ACTIVE, 1,
1714                 [Kernel has a sb_any_quota_active])
1715         AC_MSG_RESULT([yes])
1716 ],[
1717         AC_MSG_RESULT([no])
1718 ])
1719 ])
1720
1721 # 2.6.27 sles11 has sb_has_quota_active
1722 AC_DEFUN([LC_SB_HAS_QUOTA_ACTIVE],
1723 [AC_MSG_CHECKING([Kernel has sb_has_quota_active])
1724 LB_LINUX_TRY_COMPILE([
1725         #include <linux/quotaops.h>
1726 ],[
1727         sb_has_quota_active(NULL, 0);
1728 ],[
1729         AC_DEFINE(HAVE_SB_HAS_QUOTA_ACTIVE, 1,
1730                 [Kernel has a sb_has_quota_active])
1731         AC_MSG_RESULT([yes])
1732 ],[
1733         AC_MSG_RESULT([no])
1734 ])
1735 ])
1736
1737 # 2.6.27 has inode_permission instead of permisson
1738 AC_DEFUN([LC_EXPORT_INODE_PERMISSION],
1739 [LB_CHECK_SYMBOL_EXPORT([inode_permission],
1740 [fs/namei.c],[
1741 AC_DEFINE(HAVE_EXPORT_INODE_PERMISSION, 1,
1742             [inode_permission is exported by the kernel])
1743 ],[
1744 ])
1745 ])
1746
1747 # 2.6.27 use 5th parameter in quota_on for remount.
1748 AC_DEFUN([LC_QUOTA_ON_5ARGS],
1749 [AC_MSG_CHECKING([quota_on needs 5 parameters])
1750 LB_LINUX_TRY_COMPILE([
1751         #include <linux/quota.h>
1752 ],[
1753         struct quotactl_ops *qop;
1754         qop->quota_on(NULL, 0, 0, NULL, 0);
1755 ],[
1756         AC_DEFINE(HAVE_QUOTA_ON_5ARGS, 1,
1757                 [quota_on needs 5 paramters])
1758         AC_MSG_RESULT([yes])
1759 ],[
1760         AC_MSG_RESULT([no])
1761 ])
1762 ])
1763
1764 # 2.6.27 use 3th parameter in quota_off for remount.
1765 AC_DEFUN([LC_QUOTA_OFF_3ARGS],
1766 [AC_MSG_CHECKING([quota_off needs 3 parameters])
1767 LB_LINUX_TRY_COMPILE([
1768         #include <linux/quota.h>
1769 ],[
1770         struct quotactl_ops *qop;
1771         qop->quota_off(NULL, 0, 0);
1772 ],[
1773         AC_DEFINE(HAVE_QUOTA_OFF_3ARGS, 1,
1774                 [quota_off needs 3 paramters])
1775         AC_MSG_RESULT([yes])
1776 ],[
1777         AC_MSG_RESULT([no])
1778 ])
1779 ])
1780
1781 # 2.6.27 has vfs_dq_off inline function.
1782 AC_DEFUN([LC_VFS_DQ_OFF],
1783 [AC_MSG_CHECKING([vfs_dq_off is defined])
1784 LB_LINUX_TRY_COMPILE([
1785         #include <linux/quotaops.h>
1786 ],[
1787         vfs_dq_off(NULL, 0);
1788 ],[
1789         AC_DEFINE(HAVE_VFS_DQ_OFF, 1, [vfs_dq_off is defined])
1790         AC_MSG_RESULT([yes])
1791 ],[
1792         AC_MSG_RESULT([no])
1793 ])
1794 ])
1795
1796 #
1797 # LC_LINUX_FIEMAP_H
1798 #
1799 # If we have fiemap.h
1800 # after 2.6.27 use fiemap.h in include/linux
1801 #
1802 AC_DEFUN([LC_LINUX_FIEMAP_H],
1803 [LB_CHECK_FILE([$LINUX/include/linux/fiemap.h],[
1804         AC_MSG_CHECKING([if fiemap.h can be compiled])
1805         LB_LINUX_TRY_COMPILE([
1806                 #include <linux/types.h>
1807                 #include <linux/fiemap.h>
1808         ],[],[
1809                 AC_MSG_RESULT([yes])
1810                 AC_DEFINE(HAVE_LINUX_FIEMAP_H, 1, [Kernel has fiemap.h])
1811         ],[
1812                 AC_MSG_RESULT([no])
1813         ])
1814 ],
1815 [])
1816 ])
1817
1818 # LC_LOCK_MAP_ACQUIRE
1819 # after 2.6.27 lock_map_acquire replaces lock_acquire
1820 AC_DEFUN([LC_LOCK_MAP_ACQUIRE],
1821 [AC_MSG_CHECKING([if lock_map_acquire is defined])
1822 LB_LINUX_TRY_COMPILE([
1823         #include <linux/lockdep.h>
1824 ],[
1825         lock_map_acquire(NULL);
1826 ],[
1827         AC_MSG_RESULT(yes)
1828         AC_DEFINE(HAVE_LOCK_MAP_ACQUIRE, 1,
1829                 [lock_map_acquire is defined])
1830 ],[
1831         AC_MSG_RESULT(no)
1832 ])
1833 ])
1834
1835 # 2.6.31 replaces blk_queue_hardsect_size by blk_queue_logical_block_size function
1836 AC_DEFUN([LC_BLK_QUEUE_LOG_BLK_SIZE],
1837 [AC_MSG_CHECKING([if blk_queue_logical_block_size is defined])
1838 LB_LINUX_TRY_COMPILE([
1839         #include <linux/blkdev.h>
1840 ],[
1841         blk_queue_logical_block_size(NULL, 0);
1842 ],[
1843         AC_MSG_RESULT(yes)
1844         AC_DEFINE(HAVE_BLK_QUEUE_LOG_BLK_SIZE, 1,
1845                   [blk_queue_logical_block_size is defined])
1846 ],[
1847         AC_MSG_RESULT(no)
1848 ])
1849 ])
1850
1851 #
1852 # LC_PROG_LINUX
1853 #
1854 # Lustre linux kernel checks
1855 #
1856 AC_DEFUN([LC_PROG_LINUX],
1857          [LC_LUSTRE_VERSION_H
1858          if test x$enable_server = xyes ; then
1859              AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
1860              LC_FUNC_DEV_SET_RDONLY
1861              LC_STACK_SIZE
1862              LC_CONFIG_BACKINGFS
1863          fi
1864          LC_CONFIG_PINGER
1865          LC_CONFIG_CHECKSUM
1866          LC_CONFIG_LIBLUSTRE_RECOVERY
1867          LC_CONFIG_HEALTH_CHECK_WRITE
1868          LC_CONFIG_LRU_RESIZE
1869          LC_QUOTA_MODULE
1870
1871          # RHEL4 patches
1872          LC_EXPORT_TRUNCATE_COMPLETE
1873          LC_EXPORT_TRUNCATE_RANGE
1874          LC_EXPORT_D_REHASH_COND
1875          LC_EXPORT___D_REHASH
1876          LC_EXPORT_D_MOVE_LOCKED
1877          LC_EXPORT___D_MOVE
1878          LC_EXPORT_NODE_TO_CPUMASK
1879
1880          LC_HEADER_LDISKFS_XATTR
1881          LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
1882          LC_STRUCT_STATFS
1883          LC_FILEMAP_POPULATE
1884          LC_D_ADD_UNIQUE
1885          LC_BIT_SPINLOCK_H
1886
1887          LC_XATTR_ACL
1888          LC_POSIX_ACL_XATTR_H
1889          LC_CONST_ACL_SIZE
1890
1891          LC_STRUCT_INTENT_FILE
1892
1893          LC_CAPA_CRYPTO
1894          LC_CONFIG_RMTCLIENT
1895          LC_CONFIG_GSS
1896          LC_FUNC_MS_FLOCK_LOCK
1897          LC_FUNC_HAVE_CAN_SLEEP_ARG
1898          LC_FUNC_F_OP_FLOCK
1899          LC_QUOTA_READ
1900          LC_COOKIE_FOLLOW_LINK
1901          LC_FUNC_RCU
1902          LC_PERCPU_COUNTER
1903          LC_QUOTA64
1904          LC_4ARGS_VFS_SYMLINK
1905
1906          # does the kernel have VFS intent patches?
1907          LC_VFS_INTENT_PATCHES
1908
1909          # ~2.6.11
1910          LC_S_TIME_GRAN
1911          LC_SB_TIME_GRAN
1912
1913          # 2.6.12
1914          LC_RW_TREE_LOCK
1915          LC_EXPORT_SYNCHRONIZE_RCU
1916
1917          # 2.6.15
1918          LC_INODE_I_MUTEX
1919
1920          # 2.6.16
1921          LC_SECURITY_PLUG  # for SLES10 SP2
1922
1923          # 2.6.17
1924          LC_INODE_IPRIVATE
1925          LC_DQUOTOFF_MUTEX
1926
1927          # 2.6.18
1928          LC_NR_PAGECACHE
1929          LC_STATFS_DENTRY_PARAM
1930          LC_VFS_KERN_MOUNT
1931          LC_INVALIDATEPAGE_RETURN_INT
1932          LC_UMOUNTBEGIN_HAS_VFSMOUNT
1933          LC_SEQ_LOCK
1934          LC_EXPORT_FILEMAP_FDATAWRITE_RANGE
1935          if test x$enable_server = xyes ; then
1936                 LC_EXPORT_INVALIDATE_MAPPING_PAGES
1937          fi
1938
1939          #2.6.18 + RHEL5 (fc6)
1940          LC_PG_FS_MISC
1941          LC_PAGE_CHECKED
1942          LC_LINUX_FIEMAP_H
1943
1944          # 2.6.19
1945          LC_INODE_BLKSIZE
1946          LC_VFS_READDIR_U64_INO
1947          LC_FILE_WRITEV
1948          LC_FILE_READV
1949
1950          # 2.6.20
1951          LC_CANCEL_DIRTY_PAGE
1952
1953          # raid5-zerocopy patch
1954          LC_PAGE_CONSTANT
1955
1956          # 2.6.22
1957          LC_INVALIDATE_BDEV_2ARG
1958          LC_ASYNC_BLOCK_CIPHER
1959          LC_STRUCT_HASH_DESC
1960          LC_STRUCT_BLKCIPHER_DESC
1961          LC_FS_RENAME_DOES_D_MOVE
1962          # 2.6.23
1963          LC_UNREGISTER_BLKDEV_RETURN_INT
1964          LC_KERNEL_SPLICE_READ
1965          LC_KERNEL_SENDFILE
1966          LC_HAVE_EXPORTFS_H
1967          LC_VM_OP_FAULT
1968          LC_REGISTER_SHRINKER
1969
1970          # 2.6.24
1971          LC_HAVE_MMTYPES_H
1972          LC_BIO_ENDIO_2ARG
1973          LC_FH_TO_DENTRY
1974          LC_PROCFS_DELETED
1975
1976          #2.6.25
1977          LC_MAPPING_CAP_WRITEBACK_DIRTY
1978
1979          # 2.6.26
1980          LC_FS_STRUCT_USE_PATH
1981
1982          # 2.6.27
1983          LC_INODE_PERMISION_2ARGS
1984          LC_FILE_REMOVE_SUID
1985          LC_TRYLOCKPAGE
1986          LC_READ_INODE_IN_SBOPS
1987          LC_EXPORT_INODE_PERMISSION
1988          LC_QUOTA_ON_5ARGS
1989          LC_QUOTA_OFF_3ARGS
1990          LC_VFS_DQ_OFF
1991          LC_LOCK_MAP_ACQUIRE
1992
1993          # 2.6.27.15-2 sles11
1994          LC_BI_HW_SEGMENTS
1995          LC_HAVE_QUOTAIO_V1_H
1996          LC_VFS_SYMLINK_5ARGS
1997          LC_SB_ANY_QUOTA_ACTIVE
1998          LC_SB_HAS_QUOTA_ACTIVE
1999
2000          # 2.6.31
2001          LC_BLK_QUEUE_LOG_BLK_SIZE
2002 ])
2003
2004 #
2005 # LC_CONFIG_CLIENT_SERVER
2006 #
2007 # Build client/server sides of Lustre
2008 #
2009 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
2010 [AC_MSG_CHECKING([whether to build Lustre server support])
2011 AC_ARG_ENABLE([server],
2012         AC_HELP_STRING([--disable-server],
2013                         [disable Lustre server support]),
2014         [],[enable_server='yes'])
2015 AC_MSG_RESULT([$enable_server])
2016
2017 AC_MSG_CHECKING([whether to build Lustre client support])
2018 AC_ARG_ENABLE([client],
2019         AC_HELP_STRING([--disable-client],
2020                         [disable Lustre client support]),
2021         [],[enable_client='yes'])
2022 AC_MSG_RESULT([$enable_client])])
2023
2024 #
2025 # LC_CONFIG_LIBLUSTRE
2026 #
2027 # whether to build liblustre
2028 #
2029 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
2030 [AC_MSG_CHECKING([whether to build Lustre library])
2031 AC_ARG_ENABLE([liblustre],
2032         AC_HELP_STRING([--disable-liblustre],
2033                         [disable building of Lustre library]),
2034         [],[enable_liblustre=$with_sysio])
2035 AC_MSG_RESULT([$enable_liblustre])
2036 # only build sysio if liblustre is built
2037 with_sysio="$enable_liblustre"
2038
2039 AC_MSG_CHECKING([whether to build liblustre tests])
2040 AC_ARG_ENABLE([liblustre-tests],
2041         AC_HELP_STRING([--enable-liblustre-tests],
2042                         [enable liblustre tests, if --disable-tests is used]),
2043         [],[enable_liblustre_tests=$enable_tests])
2044 if test x$enable_liblustre != xyes ; then
2045    enable_liblustre_tests='no'
2046 fi
2047 AC_MSG_RESULT([$enable_liblustre_tests])
2048
2049 AC_MSG_CHECKING([whether to enable liblustre acl])
2050 AC_ARG_ENABLE([liblustre-acl],
2051         AC_HELP_STRING([--disable-liblustre-acl],
2052                         [disable ACL support for liblustre]),
2053         [],[enable_liblustre_acl=yes])
2054 AC_MSG_RESULT([$enable_liblustre_acl])
2055 if test x$enable_liblustre_acl = xyes ; then
2056   AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
2057 fi
2058
2059 # 2.6.29 change prepare/commit_write to write_begin/end
2060 AC_DEFUN([LC_WRITE_BEGIN_END],
2061 [AC_MSG_CHECKING([if kernel has .write_begin/end])
2062 LB_LINUX_TRY_COMPILE([
2063         #include <linux/fs.h>
2064         #include <linux/pagemap.h>
2065 #ifdef HAVE_LINUX_MMTYPES_H
2066         #include <linux/mm_types.h>
2067 #endif
2068 ],[
2069         struct address_space_operations aops;
2070         struct page *page;
2071
2072         aops.write_begin = NULL;
2073         aops.write_end = NULL;
2074         page = grab_cache_page_write_begin(NULL, 0, 0);
2075 ], [
2076         AC_MSG_RESULT([yes])
2077         AC_DEFINE(HAVE_KERNEL_WRITE_BEGIN_END, 1,
2078                 [kernel has .write_begin/end])
2079 ],[
2080         AC_MSG_RESULT([no])
2081 ])
2082 ])
2083
2084 # 2.6.29 blkdev_put has 2 arguments
2085 AC_DEFUN([LC_BLKDEV_PUT_2ARGS],
2086 [AC_MSG_CHECKING([blkdev_put needs 2 parameters])
2087 LB_LINUX_TRY_COMPILE([
2088         #include <linux/fs.h>
2089 ],[
2090         blkdev_put(NULL, 0);
2091 ],[
2092         AC_DEFINE(HAVE_BLKDEV_PUT_2ARGS, 1,
2093                 [blkdev_put needs 2 paramters])
2094         AC_MSG_RESULT([yes])
2095 ],[
2096         AC_MSG_RESULT([no])
2097 ])
2098 ])
2099
2100 # 2.6.29 dentry_open has 4 arguments
2101 AC_DEFUN([LC_DENTRY_OPEN_4ARGS],
2102 [AC_MSG_CHECKING([dentry_open needs 4 parameters])
2103 LB_LINUX_TRY_COMPILE([
2104         #include <linux/fs.h>
2105 ],[
2106         dentry_open(NULL, NULL, 0, NULL);
2107 ],[
2108         AC_DEFINE(HAVE_DENTRY_OPEN_4ARGS, 1,
2109                 [dentry_open needs 4 paramters])
2110         AC_MSG_RESULT([yes])
2111 ],[
2112         AC_MSG_RESULT([no])
2113 ])
2114 ])
2115
2116 #
2117 # --enable-mpitest
2118 #
2119 AC_ARG_ENABLE(mpitests,
2120         AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
2121                            [include mpi tests]),
2122         [
2123          enable_mpitests=yes
2124          case $enableval in
2125          yes)
2126                 MPICC_WRAPPER=mpicc
2127                 ;;
2128          no)
2129                 enable_mpitests=no
2130                 ;;
2131          *)
2132                 MPICC_WRAPPER=$enableval
2133                  ;;
2134          esac
2135         ],
2136         [
2137         MPICC_WRAPPER=mpicc
2138         enable_mpitests=yes
2139         ]
2140 )
2141
2142 if test x$enable_mpitests != xno; then
2143         AC_MSG_CHECKING([whether mpitests can be built])
2144         oldcc=$CC
2145         CC=$MPICC_WRAPPER
2146         AC_LINK_IFELSE(
2147             [AC_LANG_PROGRAM([[
2148                     #include <mpi.h>
2149                 ]],[[
2150                     int flag;
2151                     MPI_Initialized(&flag);
2152                 ]])],
2153             [
2154                     AC_MSG_RESULT([yes])
2155             ],[
2156                     AC_MSG_RESULT([no])
2157                     enable_mpitests=no
2158         ])
2159         CC=$oldcc
2160 fi
2161 AC_SUBST(MPICC_WRAPPER)
2162
2163 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
2164 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
2165
2166 LC_CONFIG_PINGER
2167 LC_CONFIG_LIBLUSTRE_RECOVERY
2168 ])
2169
2170 AC_DEFUN([LC_CONFIG_LRU_RESIZE],
2171 [AC_MSG_CHECKING([whether to enable lru self-adjusting])
2172 AC_ARG_ENABLE([lru_resize],
2173         AC_HELP_STRING([--enable-lru-resize],
2174                         [enable lru resize support]),
2175         [],[enable_lru_resize='yes'])
2176 AC_MSG_RESULT([$enable_lru_resize])
2177 if test x$enable_lru_resize != xno; then
2178    AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])
2179 fi
2180 ])
2181
2182 #
2183 # LC_CONFIG_QUOTA
2184 #
2185 # whether to enable quota support global control
2186 #
2187 AC_DEFUN([LC_CONFIG_QUOTA],
2188 [AC_ARG_ENABLE([quota],
2189         AC_HELP_STRING([--enable-quota],
2190                         [enable quota support]),
2191         [],[enable_quota='yes'])
2192 ])
2193
2194 # whether to enable quota support(kernel modules)
2195 AC_DEFUN([LC_QUOTA_MODULE],
2196 [if test x$enable_quota != xno; then
2197     LB_LINUX_CONFIG([QUOTA],[
2198         enable_quota_module='yes'
2199         AC_DEFINE(HAVE_QUOTA_SUPPORT, 1, [Enable quota support])
2200     ],[
2201         enable_quota_module='no'
2202         AC_MSG_WARN([quota is not enabled because the kernel - lacks quota support])
2203     ])
2204 fi
2205 ])
2206
2207 AC_DEFUN([LC_QUOTA],
2208 [#check global
2209 LC_CONFIG_QUOTA
2210 #check for utils
2211 AC_CHECK_HEADER(sys/quota.h,
2212                 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
2213                 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
2214 ])
2215
2216 AC_DEFUN([LC_QUOTA_READ],
2217 [AC_MSG_CHECKING([if kernel supports quota_read])
2218 LB_LINUX_TRY_COMPILE([
2219         #include <linux/fs.h>
2220 ],[
2221         struct super_operations sp;
2222         void *i = (void *)sp.quota_read;
2223 ],[
2224         AC_MSG_RESULT([yes])
2225         AC_DEFINE(KERNEL_SUPPORTS_QUOTA_READ, 1, [quota_read found])
2226 ],[
2227         AC_MSG_RESULT([no])
2228 ])
2229 ])
2230
2231 #
2232 # LC_CONFIG_SPLIT
2233 #
2234 # whether to enable split support
2235 #
2236 AC_DEFUN([LC_CONFIG_SPLIT],
2237 [AC_MSG_CHECKING([whether to enable split support])
2238 AC_ARG_ENABLE([split],
2239         AC_HELP_STRING([--enable-split],
2240                         [enable split support]),
2241         [],[enable_split='no'])
2242 AC_MSG_RESULT([$enable_split])
2243 if test x$enable_split != xno; then
2244    AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
2245 fi
2246 ])
2247
2248 #
2249 # LC_COOKIE_FOLLOW_LINK
2250 #
2251 # kernel 2.6.13+ ->follow_link returns a cookie
2252 #
2253
2254 AC_DEFUN([LC_COOKIE_FOLLOW_LINK],
2255 [AC_MSG_CHECKING([if inode_operations->follow_link returns a cookie])
2256 LB_LINUX_TRY_COMPILE([
2257         #include <linux/fs.h>
2258         #include <linux/namei.h>
2259 ],[
2260         struct dentry dentry;
2261         struct nameidata nd;
2262
2263         dentry.d_inode->i_op->put_link(&dentry, &nd, NULL);
2264 ],[
2265         AC_DEFINE(HAVE_COOKIE_FOLLOW_LINK, 1, [inode_operations->follow_link returns a cookie])
2266         AC_MSG_RESULT([yes])
2267 ],[
2268         AC_MSG_RESULT([no])
2269 ])
2270 ])
2271
2272 #
2273 # LC_FUNC_RCU
2274 #
2275 # kernels prior than 2.6.0(?) have no RCU supported; in kernel 2.6.5(SUSE),
2276 # call_rcu takes three parameters.
2277 #
2278 AC_DEFUN([LC_FUNC_RCU],
2279 [AC_MSG_CHECKING([if kernel have RCU supported])
2280 LB_LINUX_TRY_COMPILE([
2281         #include <linux/rcupdate.h>
2282 ],[],[
2283         AC_DEFINE(HAVE_RCU, 1, [have RCU defined])
2284         AC_MSG_RESULT([yes])
2285
2286         AC_MSG_CHECKING([if call_rcu takes three parameters])
2287         LB_LINUX_TRY_COMPILE([
2288                 #include <linux/rcupdate.h>
2289         ],[
2290                 struct rcu_head rh;
2291                 call_rcu(&rh, (void (*)(struct rcu_head *))1, NULL);
2292         ],[
2293                 AC_DEFINE(HAVE_CALL_RCU_PARAM, 1, [call_rcu takes three parameters])
2294                 AC_MSG_RESULT([yes])
2295         ],[
2296                 AC_MSG_RESULT([no])
2297         ])
2298
2299 ],[
2300         AC_MSG_RESULT([no])
2301 ])
2302 ])
2303
2304 #
2305 # LC_QUOTA64
2306 # linux kernel have 64-bit limits support
2307 #
2308 AC_DEFUN([LC_QUOTA64],
2309 [if test x$enable_quota_module = xyes -a x$enable_server = xyes ; then
2310         AC_MSG_CHECKING([if kernel has 64-bit quota limits support])
2311         LB_LINUX_TRY_COMPILE([
2312                 #include <linux/kernel.h>
2313                 #include <linux/fs.h>
2314                 #include <linux/quotaio_v2.h>
2315                 int versions[] = V2_INITQVERSIONS_R1;
2316                 struct v2_disk_dqblk_r1 dqblk_r1;
2317         ],[],[
2318                 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
2319                 AC_MSG_RESULT([yes])
2320         ],[
2321         tmp_flags="$EXTRA_KCFLAGS"
2322         EXTRA_KCFLAGS="-I $LINUX/fs"
2323         LB_LINUX_TRY_COMPILE([
2324                 #include <linux/kernel.h>
2325                 #include <linux/fs.h>
2326                 #include <quotaio_v2.h>
2327                 struct v2r1_disk_dqblk dqblk_r1;
2328         ],[],[
2329                 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
2330                 AC_MSG_RESULT([yes])
2331         ],[
2332                 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
2333                         AC_MSG_ERROR([You have got no 64-bit kernel quota support.])
2334                 ],[])
2335                 AC_MSG_RESULT([no])
2336         ])
2337         EXTRA_KCFLAGS=$tmp_flags
2338         ])
2339 fi
2340 ])
2341
2342 # LC_SECURITY_PLUG  # for SLES10 SP2
2343 # check security plug in sles10 sp2 kernel
2344 AC_DEFUN([LC_SECURITY_PLUG],
2345 [AC_MSG_CHECKING([If kernel has security plug support])
2346 LB_LINUX_TRY_COMPILE([
2347         #include <linux/fs.h>
2348 ],[
2349         struct dentry   *dentry;
2350         struct vfsmount *mnt;
2351         struct iattr    *iattr;
2352
2353         notify_change(dentry, mnt, iattr);
2354 ],[
2355         AC_MSG_RESULT(yes)
2356         AC_DEFINE(HAVE_SECURITY_PLUG, 1,
2357                 [SLES10 SP2 use extra parameter in vfs])
2358 ],[
2359         AC_MSG_RESULT(no)
2360 ])
2361 ])
2362
2363 AC_DEFUN([LC_PERCPU_COUNTER],
2364 [AC_MSG_CHECKING([if have struct percpu_counter defined])
2365 LB_LINUX_TRY_COMPILE([
2366         #include <linux/percpu_counter.h>
2367 ],[],[
2368         AC_DEFINE(HAVE_PERCPU_COUNTER, 1, [percpu_counter found])
2369         AC_MSG_RESULT([yes])
2370
2371         AC_MSG_CHECKING([if percpu_counter_inc takes the 2nd argument])
2372         LB_LINUX_TRY_COMPILE([
2373                 #include <linux/percpu_counter.h>
2374         ],[
2375                 struct percpu_counter c;
2376                 percpu_counter_init(&c, 0);
2377         ],[
2378                 AC_DEFINE(HAVE_PERCPU_2ND_ARG, 1, [percpu_counter_init has two
2379                                                    arguments])
2380                 AC_MSG_RESULT([yes])
2381         ],[
2382                 AC_MSG_RESULT([no])
2383         ])
2384 ],[
2385         AC_MSG_RESULT([no])
2386 ])
2387 ])
2388
2389 #
2390 # LC_CONFIGURE
2391 #
2392 # other configure checks
2393 #
2394 AC_DEFUN([LC_CONFIGURE],
2395 [LC_CONFIG_OBD_BUFFER_SIZE
2396
2397 if test $target_cpu == "i686" -o $target_cpu == "x86_64"; then
2398         CFLAGS="$CFLAGS -Werror"
2399 fi
2400
2401 # include/liblustre.h
2402 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
2403
2404 # liblustre/llite_lib.h
2405 AC_CHECK_HEADERS([xtio.h file.h])
2406
2407 # liblustre/dir.c
2408 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
2409
2410 # liblustre/lutil.c
2411 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
2412 AC_CHECK_FUNCS([inet_ntoa])
2413
2414 # libsysio/src/readlink.c
2415 LC_READLINK_SSIZE_T
2416
2417 # lvfs/prng.c - depends on linux/types.h from liblustre/dir.c
2418 AC_CHECK_HEADERS([linux/random.h], [], [],
2419                  [#ifdef HAVE_LINUX_TYPES_H
2420                   # include <linux/types.h>
2421                   #endif
2422                  ])
2423
2424 # utils/llverfs.c
2425 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
2426
2427 # check for -lz support
2428 ZLIB=""
2429 AC_CHECK_LIB([z],
2430              [adler32],
2431              [AC_CHECK_HEADERS([zlib.h],
2432                                [ZLIB="-lz"
2433                                 AC_DEFINE([HAVE_ADLER], 1,
2434                                           [support alder32 checksum type])],
2435                                [AC_MSG_WARN([No zlib-devel package found,
2436                                              unable to use adler32 checksum])])],
2437              [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
2438 )
2439 AC_SUBST(ZLIB)
2440
2441 # Super safe df
2442 AC_ARG_ENABLE([mindf],
2443       AC_HELP_STRING([--enable-mindf],
2444                       [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
2445       [],[])
2446 if test "$enable_mindf" = "yes" ;  then
2447       AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
2448 fi
2449
2450 AC_ARG_ENABLE([fail_alloc],
2451         AC_HELP_STRING([--disable-fail-alloc],
2452                 [disable randomly alloc failure]),
2453         [],[enable_fail_alloc=yes])
2454 AC_MSG_CHECKING([whether to randomly failing memory alloc])
2455 AC_MSG_RESULT([$enable_fail_alloc])
2456 if test x$enable_fail_alloc != xno ; then
2457         AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
2458 fi
2459
2460 AC_ARG_ENABLE([invariants],
2461         AC_HELP_STRING([--enable-invariants],
2462                 [enable invariant checking (cpu intensive)]),
2463         [],[])
2464 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
2465 AC_MSG_RESULT([$enable_invariants])
2466 if test x$enable_invariants = xyes ; then
2467         AC_DEFINE([INVARIANT_CHECK], 1, [enable invariant checking])
2468 fi
2469
2470 AC_ARG_ENABLE([lu_ref],
2471         AC_HELP_STRING([--enable-lu_ref],
2472                 [enable lu_ref reference tracking code]),
2473         [],[])
2474 AC_MSG_CHECKING([whether to track references with lu_ref])
2475 AC_MSG_RESULT([$enable_lu_ref])
2476 if test x$enable_lu_ref = xyes ; then
2477         AC_DEFINE([USE_LU_REF], 1, [enable lu_ref reference tracking code])
2478 fi
2479
2480          #2.6.29
2481          LC_WRITE_BEGIN_END
2482          LC_D_OBTAIN_ALIAS
2483          LC_BLKDEV_PUT_2ARGS
2484          LC_DENTRY_OPEN_4ARGS
2485
2486 ])
2487
2488 #
2489 # LC_CONDITIONALS
2490 #
2491 # AM_CONDITIONALS for lustre
2492 #
2493 AC_DEFUN([LC_CONDITIONALS],
2494 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
2495 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
2496 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
2497 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
2498 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
2499 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
2500 AM_CONDITIONAL(QUOTA, test x$enable_quota_module = xyes)
2501 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
2502 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
2503 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
2504 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
2505 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
2506 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
2507 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
2508 ])
2509
2510 #
2511 # LC_CONFIG_FILES
2512 #
2513 # files that should be generated with AC_OUTPUT
2514 #
2515 AC_DEFUN([LC_CONFIG_FILES],
2516 [AC_CONFIG_FILES([
2517 lustre/Makefile
2518 lustre/autoMakefile
2519 lustre/autoconf/Makefile
2520 lustre/contrib/Makefile
2521 lustre/doc/Makefile
2522 lustre/include/Makefile
2523 lustre/include/lustre_ver.h
2524 lustre/include/linux/Makefile
2525 lustre/include/lustre/Makefile
2526 lustre/kernel_patches/targets/2.6-vanilla.target
2527 lustre/kernel_patches/targets/2.6-rhel4.target
2528 lustre/kernel_patches/targets/2.6-rhel5.target
2529 lustre/kernel_patches/targets/2.6-fc5.target
2530 lustre/kernel_patches/targets/2.6-patchless.target
2531 lustre/kernel_patches/targets/2.6-sles10.target
2532 lustre/kernel_patches/targets/2.6-sles11.target
2533 lustre/kernel_patches/targets/2.6-oel5.target
2534 lustre/kernel_patches/targets/2.6-fc11.target
2535 lustre/ldlm/Makefile
2536 lustre/fid/Makefile
2537 lustre/fid/autoMakefile
2538 lustre/liblustre/Makefile
2539 lustre/liblustre/tests/Makefile
2540 lustre/liblustre/tests/mpi/Makefile
2541 lustre/llite/Makefile
2542 lustre/llite/autoMakefile
2543 lustre/lclient/Makefile
2544 lustre/lov/Makefile
2545 lustre/lov/autoMakefile
2546 lustre/lvfs/Makefile
2547 lustre/lvfs/autoMakefile
2548 lustre/mdc/Makefile
2549 lustre/mdc/autoMakefile
2550 lustre/lmv/Makefile
2551 lustre/lmv/autoMakefile
2552 lustre/mds/Makefile
2553 lustre/mds/autoMakefile
2554 lustre/mdt/Makefile
2555 lustre/mdt/autoMakefile
2556 lustre/cmm/Makefile
2557 lustre/cmm/autoMakefile
2558 lustre/mdd/Makefile
2559 lustre/mdd/autoMakefile
2560 lustre/fld/Makefile
2561 lustre/fld/autoMakefile
2562 lustre/obdclass/Makefile
2563 lustre/obdclass/autoMakefile
2564 lustre/obdclass/linux/Makefile
2565 lustre/obdecho/Makefile
2566 lustre/obdecho/autoMakefile
2567 lustre/obdfilter/Makefile
2568 lustre/obdfilter/autoMakefile
2569 lustre/osc/Makefile
2570 lustre/osc/autoMakefile
2571 lustre/ost/Makefile
2572 lustre/ost/autoMakefile
2573 lustre/osd/Makefile
2574 lustre/osd/autoMakefile
2575 lustre/mgc/Makefile
2576 lustre/mgc/autoMakefile
2577 lustre/mgs/Makefile
2578 lustre/mgs/autoMakefile
2579 lustre/ptlrpc/Makefile
2580 lustre/ptlrpc/autoMakefile
2581 lustre/ptlrpc/gss/Makefile
2582 lustre/ptlrpc/gss/autoMakefile
2583 lustre/quota/Makefile
2584 lustre/quota/autoMakefile
2585 lustre/scripts/Makefile
2586 lustre/tests/Makefile
2587 lustre/tests/mpi/Makefile
2588 lustre/utils/Makefile
2589 lustre/utils/gss/Makefile
2590 lustre/obdclass/darwin/Makefile
2591 ])
2592 ])