lustre/autoconf/lustre-core.m4

   1 #
   2 # LC_CONFIG_SRCDIR
   3 #
   4 # Wrapper for AC_CONFIG_SUBDIR
   5 #
   6 AC_DEFUN([LC_CONFIG_SRCDIR],
   7 [AC_CONFIG_SRCDIR([lustre/obdclass/obdo.c])
   8 libcfs_is_module=yes
   9 ldiskfs_is_ext4=yes
  10 ])
  11
  12 #
  13 # LC_PATH_DEFAULTS
  14 #
  15 # lustre specific paths
  16 #
  17 AC_DEFUN([LC_PATH_DEFAULTS],
  18 [# ptlrpc kernel build requires this
  19 LUSTRE="$PWD/lustre"
  20 AC_SUBST(LUSTRE)
  21
  22 # mount.lustre
  23 rootsbindir='$(CROSS_PATH)/sbin'
  24 AC_SUBST(rootsbindir)
  25
  26 demodir='$(docdir)/demo'
  27 AC_SUBST(demodir)
  28
  29 pkgexampledir='${pkgdatadir}/examples'
  30 AC_SUBST(pkgexampledir)
  31 ])
  32
  33 #
  34 # LC_TARGET_SUPPORTED
  35 #
  36 # is the target os supported?
  37 #
  38 AC_DEFUN([LC_TARGET_SUPPORTED],
  39 [case $target_os in
  40         linux* | darwin*)
  41 $1
  42                 ;;
  43         *)
  44 $2
  45                 ;;
  46 esac
  47 ])
  48
  49 #
  50 # LC_CONFIG_OBD_BUFFER_SIZE
  51 #
  52 # the maximum buffer size of lctl ioctls
  53 #
  54 AC_DEFUN([LC_CONFIG_OBD_BUFFER_SIZE],
  55 [AC_MSG_CHECKING([maximum OBD ioctl size])
  56 AC_ARG_WITH([obd-buffer-size],
  57         AC_HELP_STRING([--with-obd-buffer-size=[size]],
  58                         [set lctl ioctl maximum bytes (default=8192)]),
  59         [
  60                 OBD_BUFFER_SIZE=$with_obd_buffer_size
  61         ],[
  62                 OBD_BUFFER_SIZE=8192
  63         ])
  64 AC_MSG_RESULT([$OBD_BUFFER_SIZE bytes])
  65 AC_DEFINE_UNQUOTED(CONFIG_LUSTRE_OBD_MAX_IOCTL_BUFFER, $OBD_BUFFER_SIZE, [IOCTL Buffer Size])
  66 ])
  67
  68 #
  69 # LC_READLINK_SSIZE_T
  70 #
  71 AC_DEFUN([LC_READLINK_SSIZE_T],
  72 [AC_MSG_CHECKING([if readlink returns ssize_t])
  73 AC_TRY_COMPILE([
  74         #include <unistd.h>
  75 ],[
  76         ssize_t readlink(const char *, char *, size_t);
  77 ],[
  78         AC_MSG_RESULT([yes])
  79         AC_DEFINE(HAVE_POSIX_1003_READLINK, 1, [readlink returns ssize_t])
  80 ],[
  81         AC_MSG_RESULT([no])
  82 ])
  83 ])
  84
  85 #
  86 # LC_FUNC_DEV_SET_RDONLY
  87 #
  88 # check whether dev_set_rdonly is exported.  This is needed until we
  89 # have another mechanism to fence IO from the underlying device.
  90 #
  91 AC_DEFUN([LC_FUNC_DEV_SET_RDONLY],
  92 [LB_CHECK_SYMBOL_EXPORT([dev_set_rdonly],
  93 [block/ll_rw_block.c,block/blk-core.c],[
  94         AC_DEFINE(HAVE_DEV_SET_RDONLY, 1, [kernel exports dev_set_rdonly])
  95 ],[
  96         AC_MSG_WARN([kernel missing dev_set_rdonly patch for testing])
  97 ])
  98 ])
  99
 100 #
 101 # Ensure stack size big than 8k in Lustre server (all kernels)
 102 #
 103 AC_DEFUN([LC_STACK_SIZE],
 104 [AC_MSG_CHECKING([stack size big than 8k])
 105 LB_LINUX_TRY_COMPILE([
 106         #include <linux/thread_info.h>
 107 ],[
 108         #if THREAD_SIZE < 8192
 109         #error "stack size < 8192"
 110         #endif
 111 ],[
 112         AC_MSG_RESULT(yes)
 113 ],[
 114         AC_MSG_ERROR([Lustre requires that Linux is configured with at least a 8KB stack.])
 115 ])
 116 ])
 117
 118 #
 119 # Allow the user to set the MDS thread upper limit
 120 #
 121 AC_DEFUN([LC_MDS_MAX_THREADS],
 122 [
 123         AC_ARG_WITH([mds_max_threads],
 124         AC_HELP_STRING([--with-mds-max-threads=count],
 125                        [maximum threads available on the MDS: (default=512)]),
 126         [
 127                 MDS_THREAD_COUNT=$with_mds_max_threads
 128                 AC_DEFINE_UNQUOTED(MDS_MAX_THREADS, $MDS_THREAD_COUNT, [maximum number of MDS threads])
 129         ])
 130 ])
 131
 132 #
 133 # LC_CONFIG_PINGER
 134 #
 135 # the pinger is temporary, until we have the recovery node in place
 136 #
 137 AC_DEFUN([LC_CONFIG_PINGER],
 138 [AC_MSG_CHECKING([whether to enable pinger support])
 139 AC_ARG_ENABLE([pinger],
 140         AC_HELP_STRING([--disable-pinger],
 141                         [disable recovery pinger support]),
 142         [],[enable_pinger='yes'])
 143 AC_MSG_RESULT([$enable_pinger])
 144 if test x$enable_pinger != xno ; then
 145   AC_DEFINE(ENABLE_PINGER, 1, Use the Pinger)
 146 fi
 147 ])
 148
 149 #
 150 # LC_CONFIG_CHECKSUM
 151 #
 152 # do checksum of bulk data between client and OST
 153 #
 154 AC_DEFUN([LC_CONFIG_CHECKSUM],
 155 [AC_MSG_CHECKING([whether to enable data checksum support])
 156 AC_ARG_ENABLE([checksum],
 157        AC_HELP_STRING([--disable-checksum],
 158                        [disable data checksum support]),
 159        [],[enable_checksum='yes'])
 160 AC_MSG_RESULT([$enable_checksum])
 161 if test x$enable_checksum != xno ; then
 162   AC_DEFINE(ENABLE_CHECKSUM, 1, do data checksums)
 163 fi
 164 ])
 165
 166 #
 167 # LC_CONFIG_LIBLUSTRE_RECOVERY
 168 #
 169 AC_DEFUN([LC_CONFIG_LIBLUSTRE_RECOVERY],
 170 [AC_MSG_CHECKING([whether to enable liblustre recovery support])
 171 AC_ARG_ENABLE([liblustre-recovery],
 172         AC_HELP_STRING([--disable-liblustre-recovery],
 173                         [disable liblustre recovery support]),
 174         [],[enable_liblustre_recovery='yes'])
 175 AC_MSG_RESULT([$enable_liblustre_recovery])
 176 if test x$enable_liblustre_recovery != xno ; then
 177   AC_DEFINE(ENABLE_LIBLUSTRE_RECOVERY, 1, Liblustre Can Recover)
 178 fi
 179 ])
 180
 181 #
 182 # LC_CONFIG_HEALTH_CHECK_WRITE
 183 #
 184 # Turn off the actual write to the disk
 185 #
 186 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE],
 187 [AC_MSG_CHECKING([whether to enable a write with the health check])
 188 AC_ARG_ENABLE([health_write],
 189         AC_HELP_STRING([--enable-health_write],
 190                         [enable disk writes when doing health check]),
 191         [],[enable_health_write='no'])
 192 AC_MSG_RESULT([$enable_health_write])
 193 if test x$enable_health_write != xno ; then
 194   AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, Write when Checking Health)
 195 fi
 196 ])
 197
 198 AC_DEFUN([LC_CONFIG_LRU_RESIZE],
 199 [AC_MSG_CHECKING([whether to enable lru self-adjusting])
 200 AC_ARG_ENABLE([lru_resize],
 201         AC_HELP_STRING([--enable-lru-resize],
 202                         [enable lru resize support]),
 203         [],[enable_lru_resize='yes'])
 204 AC_MSG_RESULT([$enable_lru_resize])
 205 if test x$enable_lru_resize != xno; then
 206    AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])
 207 fi
 208 ])
 209
 210 #
 211 # Quota support. The kernel must support CONFIG_QUOTA.
 212 #
 213 AC_DEFUN([LC_QUOTA_CONFIG],
 214 [LB_LINUX_CONFIG_IM([QUOTA],[],[
 215         AC_MSG_ERROR([Lustre quota requires that CONFIG_QUOTA is enabled in your kernel.])
 216         ])
 217 ])
 218
 219 # truncate_complete_page() was exported from RHEL5/SLES10, but not in SLES11 SP0 (2.6.27)
 220 # remove_from_page_cache() was exported between 2.6.35 and 2.6.38
 221 # delete_from_page_cache() is exported from 2.6.39
 222 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE],
 223          [LB_CHECK_SYMBOL_EXPORT([truncate_complete_page],
 224                                  [mm/truncate.c],
 225                                  [AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
 226                                             [kernel export truncate_complete_page])])
 227           LB_CHECK_SYMBOL_EXPORT([remove_from_page_cache],
 228                                  [mm/filemap.c],
 229                                  [AC_DEFINE(HAVE_REMOVE_FROM_PAGE_CACHE, 1,
 230                                             [kernel export remove_from_page_cache])])
 231           LB_CHECK_SYMBOL_EXPORT([delete_from_page_cache],
 232                                  [mm/filemap.c],
 233                                  [AC_DEFINE(HAVE_DELETE_FROM_PAGE_CACHE, 1,
 234                                             [kernel export delete_from_page_cache])])
 235          ])
 236
 237 #
 238 # added in 2.6.17
 239 #
 240 AC_DEFUN([LC_BIT_SPINLOCK_H],
 241 [LB_CHECK_FILE([$LINUX/include/linux/bit_spinlock.h],[
 242         AC_MSG_CHECKING([if bit_spinlock.h can be compiled])
 243         LB_LINUX_TRY_COMPILE([
 244                 #include <asm/processor.h>
 245                 #include <linux/spinlock.h>
 246                 #include <linux/bit_spinlock.h>
 247         ],[],[
 248                 AC_MSG_RESULT([yes])
 249                 AC_DEFINE(HAVE_BIT_SPINLOCK_H, 1, [Kernel has bit_spinlock.h])
 250         ],[
 251                 AC_MSG_RESULT([no])
 252         ])
 253 ],
 254 [])
 255 ])
 256
 257 #
 258 # LC_CAPA_CRYPTO
 259 #
 260 AC_DEFUN([LC_CAPA_CRYPTO],
 261 [LB_LINUX_CONFIG_IM([CRYPTO],[],[
 262         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])
 263 ])
 264 LB_LINUX_CONFIG_IM([CRYPTO_HMAC],[],[
 265         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])
 266 ])
 267 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],[
 268         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])
 269 ])
 270 ])
 271
 272 #
 273 # LC_CONFIG_RMTCLIENT
 274 #
 275 dnl FIXME
 276 dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
 277 dnl FIXME
 278 AC_DEFUN([LC_CONFIG_RMTCLIENT],
 279 [LB_LINUX_CONFIG_IM([CRYPTO_AES],[],[
 280         AC_MSG_WARN([Lustre remote client require that CONFIG_CRYPTO_AES is enabled in your kernel.])
 281 ])
 282 ])
 283
 284 #
 285 # LC_CONFIG_GSS_KEYRING (default enabled, if gss is enabled)
 286 #
 287 AC_DEFUN([LC_CONFIG_GSS_KEYRING],
 288 [AC_MSG_CHECKING([whether to enable gss keyring backend])
 289  AC_ARG_ENABLE([gss_keyring],
 290                [AC_HELP_STRING([--disable-gss-keyring],
 291                                [disable gss keyring backend])],
 292                [],[enable_gss_keyring='yes'])
 293  AC_MSG_RESULT([$enable_gss_keyring])
 294
 295  if test x$enable_gss_keyring != xno; then
 296         LB_LINUX_CONFIG_IM([KEYS],[],
 297                            [AC_MSG_ERROR([GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.])])
 298
 299         AC_CHECK_LIB([keyutils], [keyctl_search], [],
 300                      [AC_MSG_ERROR([libkeyutils is not found, which is required by gss keyring backend])],)
 301
 302         AC_DEFINE([HAVE_GSS_KEYRING], [1],
 303                   [Define this if you enable gss keyring backend])
 304  fi
 305 ])
 306
 307 AC_DEFUN([LC_CONFIG_SUNRPC],
 308 [LB_LINUX_CONFIG_IM([SUNRPC],[],
 309                     [AC_MSG_ERROR([kernel SUNRPC support is required by using GSS.])])
 310 ])
 311
 312 #
 313 # LC_CONFIG_GSS (default disabled)
 314 #
 315 # Build gss and related tools of Lustre. Currently both kernel and user space
 316 # parts are depend on linux platform.
 317 #
 318 AC_DEFUN([LC_CONFIG_GSS],
 319 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
 320  AC_ARG_ENABLE([gss],
 321                [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
 322                [],[enable_gss='no'])
 323  AC_MSG_RESULT([$enable_gss])
 324
 325  if test x$enable_gss == xyes; then
 326         LC_CONFIG_GSS_KEYRING
 327         LC_CONFIG_SUNRPC
 328
 329         AC_DEFINE([HAVE_GSS], [1], [Define this if you enable gss])
 330
 331         LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
 332                            [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
 333         LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
 334                            [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
 335         LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
 336                            [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
 337         LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
 338                            [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
 339
 340         AC_CHECK_LIB([gssapi], [gss_export_lucid_sec_context],
 341                      [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"],
 342                      [AC_CHECK_LIB([gssglue], [gss_export_lucid_sec_context],
 343                                    [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue"],
 344                                    [AC_MSG_ERROR([libgssapi or libgssglue is not found, which is required by GSS.])])],)
 345
 346         AC_SUBST(GSSAPI_LIBS)
 347
 348         AC_KERBEROS_V5
 349  fi
 350 ])
 351
 352 # 2.6.12
 353
 354 # ~2.6.12 merge patch from oracle to convert tree_lock from spinlock to rwlock
 355 # yet tree_lock is converted from rwlock to spin_lock since v2.6.26
 356 AC_DEFUN([LC_RW_TREE_LOCK],
 357 [AC_MSG_CHECKING([if kernel has tree_lock as rwlock])
 358 tmp_flags="$EXTRA_KCFLAGS"
 359 EXTRA_KCFLAGS="-Werror"
 360 LB_LINUX_TRY_COMPILE([
 361         #include <linux/fs.h>
 362 ],[
 363         struct address_space a;
 364
 365         write_lock(&a.tree_lock);
 366 ],[
 367         AC_MSG_RESULT([yes])
 368         AC_DEFINE(HAVE_RW_TREE_LOCK, 1, [kernel has tree_lock as rw_lock])
 369 ],[
 370         AC_MSG_RESULT([no])
 371 ])
 372 EXTRA_KCFLAGS="$tmp_flags"
 373 ])
 374
 375 #2.6.18 + RHEL5 (fc6)
 376
 377 #
 378 # LC_LINUX_FIEMAP_H
 379 #
 380 # fiemap.h is added since v2.6.28
 381 # RHEL5 2.6.18 has it, while SLES10 2.6.27 does not
 382 #
 383 AC_DEFUN([LC_LINUX_FIEMAP_H],
 384 [LB_CHECK_FILE([$LINUX/include/linux/fiemap.h],[
 385         AC_MSG_CHECKING([if fiemap.h can be compiled])
 386         LB_LINUX_TRY_COMPILE([
 387                 #include <linux/types.h>
 388                 #include <linux/fiemap.h>
 389         ],[],[
 390                 AC_MSG_RESULT([yes])
 391                 AC_DEFINE(HAVE_LINUX_FIEMAP_H, 1, [Kernel has fiemap.h])
 392         ],[
 393                 AC_MSG_RESULT([no])
 394         ])
 395 ],
 396 [])
 397 ])
 398
 399 # raid5-zerocopy patch
 400
 401 #
 402 # LC_PAGE_CONSTANT
 403 #
 404 # In order to support raid5 zerocopy patch, we have to patch the kernel to make
 405 # it support constant page, which means the page won't be modified during the
 406 # IO.
 407 #
 408 AC_DEFUN([LC_PAGE_CONSTANT],
 409 [AC_MSG_CHECKING([if kernel have PageConstant defined])
 410 LB_LINUX_TRY_COMPILE([
 411         #include <linux/mm.h>
 412         #include <linux/page-flags.h>
 413 ],[
 414         #ifndef PG_constant
 415         #error "Have no raid5 zcopy patch"
 416         #endif
 417 ],[
 418         AC_MSG_RESULT(yes)
 419         AC_DEFINE(HAVE_PAGE_CONSTANT, 1, [kernel have PageConstant supported])
 420 ],[
 421         AC_MSG_RESULT(no);
 422 ])
 423 ])
 424
 425 # 2.6.22
 426
 427 #
 428 # 2.6.19 check for FS_RENAME_DOES_D_MOVE flag
 429 #
 430 AC_DEFUN([LC_FS_RENAME_DOES_D_MOVE],
 431 [AC_MSG_CHECKING([if kernel has FS_RENAME_DOES_D_MOVE flag])
 432 LB_LINUX_TRY_COMPILE([
 433         #include <linux/fs.h>
 434 ],[
 435         int v __attribute__ ((unused));
 436         v = FS_RENAME_DOES_D_MOVE;
 437 ],[
 438         AC_MSG_RESULT([yes])
 439         AC_DEFINE(HAVE_FS_RENAME_DOES_D_MOVE, 1, [kernel has FS_RENAME_DOES_D_MOVE flag])
 440 ],[
 441         AC_MSG_RESULT([no])
 442 ])
 443 ])
 444
 445 # 2.6.23
 446
 447 # 2.6.23 have return type 'void' for unregister_blkdev
 448 AC_DEFUN([LC_UNREGISTER_BLKDEV_RETURN_INT],
 449 [AC_MSG_CHECKING([if unregister_blkdev return int])
 450 LB_LINUX_TRY_COMPILE([
 451         #include <linux/fs.h>
 452 ],[
 453         int i __attribute__ ((unused));
 454         i = unregister_blkdev(0,NULL);
 455 ],[
 456         AC_MSG_RESULT([yes])
 457         AC_DEFINE(HAVE_UNREGISTER_BLKDEV_RETURN_INT, 1,
 458                 [unregister_blkdev return int])
 459 ],[
 460         AC_MSG_RESULT([no])
 461 ])
 462 ])
 463
 464 # 2.6.23 add code to wait other users to complete before removing procfs entry
 465 AC_DEFUN([LC_PROCFS_USERS],
 466 [AC_MSG_CHECKING([if kernel has pde_users member in procfs entry struct])
 467 LB_LINUX_TRY_COMPILE([
 468         #include <linux/proc_fs.h>
 469 ],[
 470         struct proc_dir_entry pde;
 471
 472         pde.pde_users   = 0;
 473 ],[
 474         AC_MSG_RESULT([yes])
 475         AC_DEFINE(HAVE_PROCFS_USERS, 1,
 476                 [kernel has pde_users member in procfs entry struct])
 477 ],[
 478         LB_LINUX_TRY_COMPILE([
 479                 #include "$LINUX/fs/proc/internal.h"
 480         ],[
 481                 struct proc_dir_entry_aux pde_aux;
 482
 483                 pde_aux.pde_users = 0;
 484         ],[
 485                 AC_MSG_RESULT([yes])
 486                 AC_DEFINE(HAVE_PROCFS_USERS, 1,
 487                         [kernel has pde_users member in proc_dir_entry_aux])
 488         ],[
 489                 AC_MSG_RESULT([no])
 490         ])
 491 ])
 492 ])
 493
 494 # 2.6.24
 495
 496 # 2.6.24 has bio_endio with 2 args
 497 AC_DEFUN([LC_BIO_ENDIO_2ARG],
 498 [AC_MSG_CHECKING([if kernel has bio_endio with 2 args])
 499 LB_LINUX_TRY_COMPILE([
 500         #include <linux/bio.h>
 501 ],[
 502         bio_endio(NULL, 0);
 503 ], [
 504         AC_MSG_RESULT([yes])
 505         AC_DEFINE(HAVE_BIO_ENDIO_2ARG, 1,
 506                 [kernel has bio_endio with 2 args])
 507 ],[
 508         AC_MSG_RESULT([no])
 509 ])
 510 ])
 511
 512 # 2.6.24 removes long aged procfs entry -> deleted member
 513 AC_DEFUN([LC_PROCFS_DELETED],
 514 [AC_MSG_CHECKING([if kernel has deleted member in procfs entry struct])
 515 LB_LINUX_TRY_COMPILE([
 516         #include <linux/proc_fs.h>
 517 ],[
 518         struct proc_dir_entry pde;
 519
 520         pde.deleted = sizeof(pde);
 521 ], [
 522         AC_MSG_RESULT([yes])
 523         AC_DEFINE(HAVE_PROCFS_DELETED, 1,
 524                 [kernel has deleted member in procfs entry struct])
 525 ],[
 526         AC_MSG_RESULT([no])
 527 ])
 528 ])
 529
 530 # 2.6.26
 531
 532 # 2.6.26 isn't export set_fs_pwd and change paramter in fs struct
 533 AC_DEFUN([LC_FS_STRUCT_USE_PATH],
 534 [AC_MSG_CHECKING([fs_struct use path structure])
 535 LB_LINUX_TRY_COMPILE([
 536         #include <asm/atomic.h>
 537         #include <linux/spinlock.h>
 538         #include <linux/fs_struct.h>
 539 ],[
 540         struct fs_struct fs;
 541
 542         fs.pwd = *((struct path *)sizeof(fs));
 543 ], [
 544         AC_MSG_RESULT([yes])
 545         AC_DEFINE(HAVE_FS_STRUCT_USE_PATH, 1,
 546                 [fs_struct use path structure])
 547 ],[
 548         AC_MSG_RESULT([no])
 549 ])
 550 ])
 551
 552 #
 553 # 2.6.27
 554 #
 555
 556 # LC_SECURITY_PLUG  # for SLES10 SP2 (2.6.27)
 557 # check security plug in sles10 sp2 kernel
 558 AC_DEFUN([LC_SECURITY_PLUG],
 559 [AC_MSG_CHECKING([If kernel has security plug support])
 560 LB_LINUX_TRY_COMPILE([
 561         #include <linux/fs.h>
 562         #include <linux/stddef.h>
 563 ],[
 564         notify_change(NULL, NULL, NULL);
 565 ],[
 566         AC_MSG_RESULT(yes)
 567         AC_DEFINE(HAVE_SECURITY_PLUG, 1,
 568                 [SLES10 SP2 use extra parameter in vfs])
 569 ],[
 570         AC_MSG_RESULT(no)
 571 ])
 572 ])
 573
 574 AC_DEFUN([LC_INODE_PERMISION_2ARGS],
 575 [AC_MSG_CHECKING([inode_operations->permission has two args])
 576 LB_LINUX_TRY_COMPILE([
 577         #include <linux/fs.h>
 578 ],[
 579         struct inode *inode __attribute__ ((unused));
 580
 581         inode = NULL;
 582         inode->i_op->permission(NULL, 0);
 583 ],[
 584         AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
 585                   [inode_operations->permission has two args])
 586         AC_MSG_RESULT([yes])
 587 ],[
 588         AC_MSG_RESULT([no])
 589 ])
 590 ])
 591
 592 # 2.6.27 use 5th parameter in quota_on for remount.
 593 AC_DEFUN([LC_QUOTA_ON_5ARGS],
 594 [AC_MSG_CHECKING([quota_on needs 5 parameters])
 595 LB_LINUX_TRY_COMPILE([
 596         #include <linux/fs.h>
 597         #include <linux/quota.h>
 598 ],[
 599         struct quotactl_ops *qop = NULL;
 600         qop->quota_on(NULL, 0, 0, NULL, 0);
 601 ],[
 602         AC_DEFINE(HAVE_QUOTA_ON_5ARGS, 1,
 603                 [quota_on needs 5 paramters])
 604         AC_MSG_RESULT([yes])
 605 ],[
 606         AC_MSG_RESULT([no])
 607 ])
 608 ])
 609
 610 # 2.6.27 use 3th parameter in quota_off for remount.
 611 AC_DEFUN([LC_QUOTA_OFF_3ARGS],
 612 [AC_MSG_CHECKING([quota_off needs 3 parameters])
 613 LB_LINUX_TRY_COMPILE([
 614         #include <linux/fs.h>
 615         #include <linux/quota.h>
 616 ],[
 617         struct quotactl_ops *qop = NULL;
 618         qop->quota_off(NULL, 0, 0);
 619 ],[
 620         AC_DEFINE(HAVE_QUOTA_OFF_3ARGS, 1,
 621                 [quota_off needs 3 paramters])
 622         AC_MSG_RESULT([yes])
 623 ],[
 624         AC_MSG_RESULT([no])
 625 ])
 626 ])
 627
 628 # 2.6.34 has quotactl_ops->[sg]et_dqblk that take struct fs_disk_quota
 629 AC_DEFUN([LC_HAVE_DQUOT_FS_DISK_QUOTA],
 630 tmp_flags="$EXTRA_KCFLAGS"
 631 EXTRA_KCFLAGS="-Werror"
 632 [AC_MSG_CHECKING([if quotactl_ops.set_dqblk takes struct fs_disk_quota])
 633 LB_LINUX_TRY_COMPILE([
 634         #include <linux/fs.h>
 635         #include <linux/quota.h>
 636 ],[
 637         struct quotactl_ops qops = {};
 638         struct fs_disk_quota fdq;
 639         qops.set_dqblk(NULL, 0, 0, &fdq);
 640 ],[
 641         AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1, [quotactl_ops.set_dqblk takes struct fs_disk_quota])
 642         AC_MSG_RESULT([yes])
 643 ],[
 644         AC_MSG_RESULT([no])
 645 ])
 646 EXTRA_KCFLAGS="$tmp_flags"
 647 ])
 648
 649 # 2.6.34 has renamed dquot options to dquot_*, check for dquot_suspend
 650 AC_DEFUN([LC_HAVE_DQUOT_SUSPEND],
 651 [AC_MSG_CHECKING([if dquot_suspend is defined])
 652 LB_LINUX_TRY_COMPILE([
 653         #include <linux/quotaops.h>
 654 ],[
 655         dquot_suspend(NULL, -1);
 656 ],[
 657         AC_DEFINE(HAVE_DQUOT_SUSPEND, 1, [dquot_suspend is defined])
 658         AC_MSG_RESULT([yes])
 659 ],[
 660         AC_MSG_RESULT([no])
 661 ])
 662 ])
 663
 664 # LC_LOCK_MAP_ACQUIRE
 665 # after 2.6.27 lock_map_acquire replaces lock_acquire
 666 AC_DEFUN([LC_LOCK_MAP_ACQUIRE],
 667 [AC_MSG_CHECKING([if lock_map_acquire is defined])
 668 LB_LINUX_TRY_COMPILE([
 669         #include <linux/lockdep.h>
 670 ],[
 671         lock_map_acquire(NULL);
 672 ],[
 673         AC_MSG_RESULT(yes)
 674         AC_DEFINE(HAVE_LOCK_MAP_ACQUIRE, 1,
 675                 [lock_map_acquire is defined])
 676 ],[
 677         AC_MSG_RESULT(no)
 678 ])
 679 ])
 680
 681 # 2.6.27.15-2 sles11
 682
 683 # 2.6.27 sles11 remove the bi_hw_segments
 684 AC_DEFUN([LC_BI_HW_SEGMENTS],
 685 [AC_MSG_CHECKING([struct bio has a bi_hw_segments field])
 686 LB_LINUX_TRY_COMPILE([
 687         #include <linux/bio.h>
 688 ],[
 689         struct bio io;
 690         io.bi_hw_segments = sizeof(io);
 691 ],[
 692         AC_DEFINE(HAVE_BI_HW_SEGMENTS, 1,
 693                 [struct bio has a bi_hw_segments field])
 694         AC_MSG_RESULT([yes])
 695 ],[
 696         AC_MSG_RESULT([no])
 697 ])
 698 ])
 699
 700 #
 701 # 2.6.27 sles11 move the quotaio_v1{2}.h from include/linux to fs
 702 # 2.6.32 move the quotaio_v1{2}.h from fs to fs/quota
 703 AC_DEFUN([LC_HAVE_QUOTAIO_H],
 704 [LB_CHECK_FILE([$LINUX/include/linux/quotaio_v2.h],[
 705         AC_DEFINE(HAVE_QUOTAIO_H, 1,
 706                 [kernel has include/linux/quotaio_v2.h])
 707 ],[LB_CHECK_FILE([$LINUX/fs/quotaio_v2.h],[
 708                AC_DEFINE(HAVE_FS_QUOTAIO_H, 1,
 709                 [kernel has fs/quotaio_v1.h])
 710 ],[LB_CHECK_FILE([$LINUX/fs/quota/quotaio_v2.h],[
 711                AC_DEFINE(HAVE_FS_QUOTA_QUOTAIO_H, 1,
 712                 [kernel has fs/quota/quotaio_v2.h])
 713 ],[
 714         AC_MSG_RESULT([no])
 715 ])
 716 ])
 717 ])
 718 ])
 719
 720 # 2.6.32
 721
 722 # 2.6.32 replaces 2 functions blk_queue_max_phys_segments and blk_queue_max_hw_segments by blk_queue_max_segments
 723 AC_DEFUN([LC_BLK_QUEUE_MAX_SEGMENTS],
 724 [AC_MSG_CHECKING([if blk_queue_max_segments is defined])
 725 LB_LINUX_TRY_COMPILE([
 726         #include <linux/blkdev.h>
 727 ],[
 728         blk_queue_max_segments(NULL, 0);
 729 ],[
 730         AC_MSG_RESULT(yes)
 731         AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
 732                   [blk_queue_max_segments is defined])
 733 ],[
 734         AC_MSG_RESULT(no)
 735 ])
 736 ])
 737
 738 #
 739 # LC_QUOTA64
 740 #
 741 # Check if kernel has been patched for 64-bit quota limits support.
 742 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
 743 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
 744 # that in the absence of quotaio_v1.h in the kernel headers.
 745 #
 746 AC_DEFUN([LC_QUOTA64],[
 747         AC_MSG_CHECKING([if kernel has 64-bit quota limits support])
 748 tmp_flags="$EXTRA_KCFLAGS"
 749 EXTRA_KCFLAGS="-I$LINUX/fs"
 750         LB_LINUX_TRY_COMPILE([
 751                 #include <linux/kernel.h>
 752                 #include <linux/fs.h>
 753                 #if defined(HAVE_FS_QUOTA_QUOTAIO_H)
 754                 # include <quota/quotaio_v2.h>
 755                 struct v2r1_disk_dqblk dqblk_r1;
 756                 #else
 757                 #include <linux/quota.h>
 758                 int ver = QFMT_VFS_V1;
 759                 #endif
 760         ],[],[
 761                 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
 762                 AC_MSG_RESULT([yes])
 763         ],[
 764                 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
 765                         AC_MSG_ERROR([You have got no 64-bit kernel quota support.])
 766                 ],[])
 767                 AC_MSG_RESULT([no])
 768         ])
 769 EXTRA_KCFLAGS=$tmp_flags
 770 ])
 771
 772 #
 773 # 2.6.36 fs_struct.lock use spinlock instead of rwlock.
 774 #
 775 AC_DEFUN([LC_FS_STRUCT_RWLOCK],
 776 [AC_MSG_CHECKING([if fs_struct.lock use rwlock])
 777 LB_LINUX_TRY_COMPILE([
 778         #include <asm/atomic.h>
 779         #include <linux/spinlock.h>
 780         #include <linux/fs_struct.h>
 781 ],[
 782         ((struct fs_struct *)0)->lock = (rwlock_t){ 0 };
 783 ],[
 784         AC_DEFINE(HAVE_FS_STRUCT_RWLOCK, 1,
 785                   [fs_struct.lock use rwlock])
 786         AC_MSG_RESULT([yes])
 787 ],[
 788         AC_MSG_RESULT([no])
 789 ])
 790 ])
 791
 792 #
 793 # 2.6.36 super_operations add evict_inode method. it hybird of
 794 # delete_inode & clear_inode.
 795 #
 796 AC_DEFUN([LC_SBOPS_EVICT_INODE],
 797 [AC_MSG_CHECKING([if super_operations.evict_inode exist])
 798 LB_LINUX_TRY_COMPILE([
 799         #include <linux/fs.h>
 800 ],[
 801         ((struct super_operations *)0)->evict_inode(NULL);
 802 ],[
 803         AC_DEFINE(HAVE_SBOPS_EVICT_INODE, 1,
 804                 [super_operations.evict_inode() is exist in kernel])
 805         AC_MSG_RESULT([yes])
 806 ],[
 807         AC_MSG_RESULT([no])
 808 ])
 809 ])
 810
 811 #
 812 # 2.6.35 file_operations.fsync taken 2 arguments.
 813 # 3.0.0 file_operations.fsync takes 4 arguments.
 814 #
 815 AC_DEFUN([LC_FILE_FSYNC],
 816 [AC_MSG_CHECKING([if file_operations.fsync takes 4 or 2 arguments])
 817 LB_LINUX_TRY_COMPILE([
 818         #include <linux/fs.h>
 819 ],[
 820         ((struct file_operations *)0)->fsync(NULL, 0, 0, 0);
 821 ],[
 822         AC_DEFINE(HAVE_FILE_FSYNC_4ARGS, 1,
 823                 [file_operations.fsync takes 4 arguments])
 824         AC_MSG_RESULT([yes, 4 args])
 825 ],[
 826         LB_LINUX_TRY_COMPILE([
 827                 #include <linux/fs.h>
 828         ],[
 829            ((struct file_operations *)0)->fsync(NULL, 0);
 830         ],[
 831                 AC_DEFINE(HAVE_FILE_FSYNC_2ARGS, 1,
 832                         [file_operations.fsync takes 2 arguments])
 833                 AC_MSG_RESULT([yes, 2 args])
 834         ],[
 835                 AC_MSG_RESULT([no])
 836         ])
 837 ])
 838 ])
 839
 840 #
 841 # 2.6.37 remove kernel_locked
 842 #
 843 AC_DEFUN([LC_KERNEL_LOCKED],
 844 [AC_MSG_CHECKING([if kernel_locked is defined])
 845 LB_LINUX_TRY_COMPILE([
 846         #include <linux/smp_lock.h>
 847 ],[
 848         kernel_locked();
 849 ],[
 850         AC_MSG_RESULT([yes])
 851         AC_DEFINE(HAVE_KERNEL_LOCKED, 1,
 852                 [kernel_locked is defined])
 853 ],[
 854         AC_MSG_RESULT([no])
 855 ])
 856 ])
 857
 858 #
 859 # 2.6.38 dentry_operations.d_compare() taken 7 arguments.
 860 #
 861 AC_DEFUN([LC_D_COMPARE_7ARGS],
 862 [AC_MSG_CHECKING([if d_compare taken 7 arguments])
 863 LB_LINUX_TRY_COMPILE([
 864         #include <linux/dcache.h>
 865 ],[
 866         ((struct dentry_operations*)0)->d_compare(NULL,NULL,NULL,NULL,0,NULL,NULL);
 867 ],[
 868         AC_DEFINE(HAVE_D_COMPARE_7ARGS, 1,
 869                 [d_compare need 7 arguments])
 870         AC_MSG_RESULT([yes])
 871 ],[
 872         AC_MSG_RESULT([no])
 873 ])
 874 ])
 875
 876 #
 877 # 2.6.38 dentry_operations.d_delete() defined 'const' for 1st parameter.
 878 #
 879 AC_DEFUN([LC_D_DELETE_CONST],
 880 [AC_MSG_CHECKING([if d_delete has const declare on first parameter])
 881 tmp_flags="$EXTRA_KCFLAGS"
 882 EXTRA_KCFLAGS="-Werror"
 883 LB_LINUX_TRY_COMPILE([
 884         #include <linux/dcache.h>
 885 ],[
 886         const struct dentry *d = NULL;
 887         ((struct dentry_operations*)0)->d_delete(d);
 888 ],[
 889         AC_DEFINE(HAVE_D_DELETE_CONST, const,
 890                 [d_delete first parameter declared const])
 891         AC_MSG_RESULT([yes])
 892 ],[
 893         AC_DEFINE(HAVE_D_DELETE_CONST, , [])
 894         AC_MSG_RESULT([no])
 895 ])
 896 EXTRA_KCFLAGS="$tmp_flags"
 897 ])
 898
 899 #
 900 # 2.6.38 dcache_lock removed. rcu-walk commited.
 901 #
 902 AC_DEFUN([LC_DCACHE_LOCK],
 903 [AC_MSG_CHECKING([if dcache_lock is exist])
 904 LB_LINUX_TRY_COMPILE([
 905         #include <linux/dcache.h>
 906 ],[
 907         spin_lock(&dcache_lock);
 908 ],[
 909         AC_DEFINE(HAVE_DCACHE_LOCK, 1,
 910                 [dcache_lock is exist])
 911         AC_MSG_RESULT([yes])
 912 ],[
 913         AC_MSG_RESULT([no])
 914 ])
 915 ])
 916
 917 #
 918 # 2.6.38 inode.i_rcu added.
 919 #
 920 AC_DEFUN([LC_INODE_I_RCU],
 921 [AC_MSG_CHECKING([if inode.i_rcu exists])
 922 LB_LINUX_TRY_COMPILE([
 923         #include <linux/fs.h>
 924 ],[
 925         struct inode ino;
 926         struct rcu_head rcu = {};
 927         ino.i_rcu = rcu;
 928 ],[
 929         AC_DEFINE(HAVE_INODE_I_RCU, 1,
 930                 [inode.i_rcu exists])
 931         AC_MSG_RESULT([yes])
 932 ],[
 933         AC_MSG_RESULT([no])
 934 ])
 935 ])
 936
 937 #
 938 # 2.6.38 export blkdev_get_by_dev
 939 #
 940 AC_DEFUN([LC_BLKDEV_GET_BY_DEV],
 941 [LB_CHECK_SYMBOL_EXPORT([blkdev_get_by_dev],
 942 [fs/block_dev.c],[
 943 AC_DEFINE(HAVE_BLKDEV_GET_BY_DEV, 1,
 944             [blkdev_get_by_dev is exported by the kernel])
 945 ],[
 946 ])
 947 ])
 948
 949 #
 950 # 2.6.38 use path as 4th parameter in quota_on.
 951 #
 952 AC_DEFUN([LC_QUOTA_ON_USE_PATH],
 953 [AC_MSG_CHECKING([quota_on use path as parameter])
 954 tmp_flags="$EXTRA_KCFLAGS"
 955 EXTRA_KCFLAGS="-Werror"
 956 LB_LINUX_TRY_COMPILE([
 957         #include <linux/fs.h>
 958         #include <linux/quota.h>
 959 ],[
 960         ((struct quotactl_ops *)0)->quota_on(NULL, 0, 0, ((struct path*)0));
 961 ],[
 962         AC_DEFINE(HAVE_QUOTA_ON_USE_PATH, 1,
 963                 [quota_on use path as 4th paramter])
 964         AC_MSG_RESULT([yes])
 965 ],[
 966         AC_MSG_RESULT([no])
 967 ])
 968 EXTRA_KCFLAGS="$tmp_flags"
 969 ])
 970
 971 #
 972 # 2.6.38 export simple_setattr
 973 #
 974 AC_DEFUN([LC_EXPORT_SIMPLE_SETATTR],
 975 [LB_CHECK_SYMBOL_EXPORT([simple_setattr],
 976 [fs/libfs.c],[
 977 AC_DEFINE(HAVE_SIMPLE_SETATTR, 1,
 978             [simple_setattr is exported by the kernel])
 979 ],[
 980 ])
 981 ])
 982
 983 #
 984 # 2.6.39 remove unplug_fn from request_queue.
 985 #
 986 AC_DEFUN([LC_REQUEST_QUEUE_UNPLUG_FN],
 987 [AC_MSG_CHECKING([if request_queue has unplug_fn field])
 988 LB_LINUX_TRY_COMPILE([
 989         #include <linux/blkdev.h>
 990 ],[
 991         do{ }while(sizeof(((struct request_queue *)0)->unplug_fn));
 992 ],[
 993         AC_DEFINE(HAVE_REQUEST_QUEUE_UNPLUG_FN, 1,
 994                   [request_queue has unplug_fn field])
 995         AC_MSG_RESULT([yes])
 996 ],[
 997         AC_MSG_RESULT([no])
 998 ])
 999 ])
1000
1001 #
1002 # 2.6.39 replace get_sb with mount in struct file_system_type
1003 #
1004 AC_DEFUN([LC_HAVE_FSTYPE_MOUNT],
1005 [AC_MSG_CHECKING([if file_system_type has mount field])
1006 LB_LINUX_TRY_COMPILE([
1007         #include <linux/fs.h>
1008 ],[
1009         struct file_system_type fst;
1010         void *i = (void *) fst.mount;
1011 ],[
1012         AC_DEFINE(HAVE_FSTYPE_MOUNT, 1,
1013                 [struct file_system_type has mount field])
1014         AC_MSG_RESULT([yes])
1015 ],[
1016         AC_MSG_RESULT([no])
1017 ])
1018 ])
1019
1020 #
1021 # 3.0 dirty_inode() has a flag parameter
1022 # see kernel commit aa38572954ade525817fe88c54faebf85e5a61c0
1023 #
1024 AC_DEFUN([LC_DIRTY_INODE_WITH_FLAG],
1025 [AC_MSG_CHECKING([if dirty_inode super_operation takes flag])
1026 LB_LINUX_TRY_COMPILE([
1027         #include <linux/fs.h>
1028 ],[
1029         struct inode *inode;
1030         inode->i_sb->s_op->dirty_inode(NULL, 0);
1031 ],[
1032         AC_DEFINE(HAVE_DIRTY_INODE_HAS_FLAG, 1,
1033                   [dirty_inode super_operation takes flag])
1034         AC_MSG_RESULT([yes])
1035 ],[
1036         AC_MSG_RESULT([no])
1037 ])
1038 ])
1039
1040 #
1041 # 2.6.38 generic_permission taken 4 parameters.
1042 # in fact, it means rcu-walk aware permission bring.
1043 #
1044 # 3.1 generic_permission taken 2 parameters.
1045 # see kernel commit 2830ba7f34ebb27c4e5b8b6ef408cd6d74860890
1046 #
1047 AC_DEFUN([LC_GENERIC_PERMISSION],
1048 [AC_MSG_CHECKING([if generic_permission take 2 or 4 arguments])
1049 LB_LINUX_TRY_COMPILE([
1050         #include <linux/fs.h>
1051 ],[
1052         generic_permission(NULL, 0);
1053 ],[
1054         AC_DEFINE(HAVE_GENERIC_PERMISSION_2ARGS, 1,
1055                   [generic_permission taken 2 arguments])
1056         AC_MSG_RESULT([yes, 2 args])
1057 ],[
1058         LB_LINUX_TRY_COMPILE([
1059                 #include <linux/fs.h>
1060         ],[
1061                 generic_permission(NULL, 0, 0, NULL);
1062         ],[
1063                 AC_DEFINE(HAVE_GENERIC_PERMISSION_4ARGS, 1,
1064                           [generic_permission taken 4 arguments])
1065                 AC_MSG_RESULT([yes, 4 args])
1066         ],[
1067                 AC_MSG_RESULT([no])
1068         ])
1069 ])
1070 ])
1071
1072 #
1073 # 3.1 renames lock-manager ops(lock_manager_operations) from fl_xxx to lm_xxx
1074 # see kernel commit 8fb47a4fbf858a164e973b8ea8ef5e83e61f2e50
1075 #
1076 AC_DEFUN([LC_LM_XXX_LOCK_MANAGER_OPS],
1077 [AC_MSG_CHECKING([if lock-manager ops renamed to lm_xxx])
1078 LB_LINUX_TRY_COMPILE([
1079         #include <linux/fs.h>
1080 ],[
1081         struct lock_manager_operations lm_ops;
1082         lm_ops.lm_compare_owner = NULL;
1083 ],[
1084         AC_DEFINE(HAVE_LM_XXX_LOCK_MANAGER_OPS, 1,
1085                   [lock-manager ops renamed to lm_xxx])
1086         AC_MSG_RESULT([yes])
1087 ],[
1088         AC_MSG_RESULT([no])
1089 ])
1090 ])
1091
1092 #
1093 # 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait/
1094 #     inode_dio_done instead.
1095 # see kernel commit bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3
1096 #
1097 AC_DEFUN([LC_INODE_DIO_WAIT],
1098 [AC_MSG_CHECKING([if inode->i_alloc_sem is killed and use inode_dio_wait/done.])
1099 LB_LINUX_TRY_COMPILE([
1100         #include <linux/fs.h>
1101 ],[
1102         inode_dio_wait((struct inode *)0);
1103         inode_dio_done((struct inode *)0);
1104 ],[
1105         AC_DEFINE(HAVE_INODE_DIO_WAIT, 1,
1106                   [inode->i_alloc_sem is killed and use inode_dio_wait/done])
1107         AC_MSG_RESULT([yes])
1108 ],[
1109         AC_MSG_RESULT([no])
1110 ])
1111 ])
1112
1113 #
1114 # 3.1 adds get_acl method to inode_operations to read ACL from disk.
1115 # see kernel commit 4e34e719e457f2e031297175410fc0bd4016a085
1116 #
1117 AC_DEFUN([LC_IOP_GET_ACL],
1118 [AC_MSG_CHECKING([inode_operations has .get_acl member function])
1119 LB_LINUX_TRY_COMPILE([
1120         #include <linux/fs.h>
1121 ],[
1122         struct inode_operations iop;
1123         iop.get_acl = NULL;
1124 ],[
1125         AC_DEFINE(HAVE_IOP_GET_ACL, 1,
1126                   [inode_operations has .get_acl member function])
1127         AC_MSG_RESULT([yes])
1128 ],[
1129         AC_MSG_RESULT([no])
1130 ])
1131 ])
1132
1133 #
1134 # 3.1.1 has ext4_blocks_for_truncate
1135 #
1136 AC_DEFUN([LC_BLOCKS_FOR_TRUNCATE],
1137 [AC_MSG_CHECKING([if kernel has ext4_blocks_for_truncate])
1138 LB_LINUX_TRY_COMPILE([
1139         #include <linux/fs.h>
1140         #include "$LINUX/fs/ext4/ext4_jbd2.h"
1141         #include "$LINUX/fs/ext4/truncate.h"
1142 ],[
1143         ext4_blocks_for_truncate(NULL);
1144 ],[
1145         AC_MSG_RESULT([yes])
1146         AC_DEFINE(HAVE_BLOCKS_FOR_TRUNCATE, 1,
1147                   [kernel has ext4_blocks_for_truncate])
1148 ],[
1149         AC_MSG_RESULT([no])
1150 ])
1151 ])
1152
1153 #
1154 # 3.1 introduced generic_file_llseek_size()
1155 #
1156 AC_DEFUN([LC_FILE_LLSEEK_SIZE],
1157         [LB_CHECK_SYMBOL_EXPORT([generic_file_llseek_size],
1158         [fs/read_write.c],
1159         [AC_DEFINE(HAVE_FILE_LLSEEK_SIZE, 1,
1160                    [generic_file_llseek_size is exported by the kernel])])
1161 ])
1162
1163 #
1164 # 3.2 request_queue.make_request_fn defined as function returns with void
1165 # see kernel commit 5a7bbad27a410350e64a2d7f5ec18fc73836c14f
1166 #
1167 AC_DEFUN([LC_HAVE_VOID_MAKE_REQUEST_FN],
1168 [AC_MSG_CHECKING([if request_queue.make_request_fn returns void but not int])
1169 LB_LINUX_TRY_COMPILE([
1170         #include <linux/blkdev.h>
1171 ],[
1172         int ret;
1173         make_request_fn         *mrf;
1174         ret = mrf(NULL, NULL);
1175 ],[
1176         AC_MSG_RESULT([no])
1177 ],[
1178         AC_DEFINE(HAVE_VOID_MAKE_REQUEST_FN, 1,
1179                   [request_queue.make_request_fn returns void but not int])
1180         AC_MSG_RESULT([yes])
1181 ])
1182 ])
1183
1184 #
1185 # 3.2 protects inode->i_nlink from direct modification
1186 # see kernel commit a78ef704a8dd430225955f0709b22d4a6ba21deb
1187 # at the same time adds set_nlink(), so checks set_nlink() for it.
1188 #
1189 AC_DEFUN([LC_HAVE_PROTECT_I_NLINK],
1190 [AC_MSG_CHECKING([if inode->i_nlink is protected from direct modification])
1191 LB_LINUX_TRY_COMPILE([
1192         #include <linux/fs.h>
1193 ],[
1194         struct inode i;
1195         set_nlink(&i, 1);
1196 ],[
1197         AC_DEFINE(HAVE_PROTECT_I_NLINK, 1,
1198                   [inode->i_nlink is protected from direct modification])
1199         AC_MSG_RESULT([yes])
1200 ],[
1201         AC_MSG_RESULT([no])
1202 ])
1203 ])
1204
1205 #
1206 # 3.3 introduces migrate_mode.h and migratepage has 4 args
1207 #
1208 AC_DEFUN([LC_HAVE_MIGRATE_HEADER],
1209 [LB_CHECK_FILE([$LINUX/include/linux/migrate.h],[
1210                 AC_DEFINE(HAVE_MIGRATE_H, 1,
1211                 [kernel has include/linux/migrate.h])
1212 ],[LB_CHECK_FILE([$LINUX/include/linux/migrate_mode.h],[
1213                 AC_DEFINE(HAVE_MIGRATE_MODE_H, 1,
1214                         [kernel has include/linux/migrate_mode.h])
1215 ],[
1216         AC_MSG_RESULT([no])
1217 ])
1218 ])
1219 ])
1220
1221 AC_DEFUN([LC_MIGRATEPAGE_4ARGS],
1222 [AC_MSG_CHECKING([if address_space_operations.migratepage has 4 args])
1223 LB_LINUX_TRY_COMPILE([
1224         #include <linux/fs.h>
1225 #ifdef HAVE_MIGRATE_H
1226         #include <linux/migrate.h>
1227 #elif defined(HAVE_MIGRATE_MODE_H)
1228         #include <linux/migrate_mode.h>
1229 #endif
1230 ],[
1231         struct address_space_operations aops;
1232
1233         aops.migratepage(NULL, NULL, NULL, MIGRATE_ASYNC);
1234 ],[
1235         AC_DEFINE(HAVE_MIGRATEPAGE_4ARGS, 1,
1236                 [address_space_operations.migratepage has 4 args])
1237         AC_MSG_RESULT([yes])
1238 ],[
1239         AC_MSG_RESULT([no])
1240 ])
1241 ])
1242
1243 #
1244 # 3.3 switchs super_operations to use dentry as parameter (but not vfsmount)
1245 # see kernel commit 34c80b1d93e6e20ca9dea0baf583a5b5510d92d4
1246 #
1247 AC_DEFUN([LC_SUPEROPS_USE_DENTRY],
1248 [AC_MSG_CHECKING([if super_operations use dentry as parameter])
1249 tmp_flags="$EXTRA_KCFLAGS"
1250 EXTRA_KCFLAGS="-Werror"
1251 LB_LINUX_TRY_COMPILE([
1252         #include <linux/fs.h>
1253         int show_options(struct seq_file *seq, struct dentry *root){
1254                 return 0;
1255         }
1256 ],[
1257         struct super_operations ops;
1258         ops.show_options = show_options;
1259 ],[
1260         AC_DEFINE(HAVE_SUPEROPS_USE_DENTRY, 1,
1261                   [super_operations use dentry as parameter])
1262         AC_MSG_RESULT([yes])
1263 ],[
1264         AC_MSG_RESULT([no])
1265 ])
1266 EXTRA_KCFLAGS="$tmp_flags"
1267 ])
1268
1269 #
1270 # 3.3 switchs inode_operations to use umode_t as parameter (but not int)
1271 # see kernel commit 1a67aafb5f72a436ca044293309fa7e6351d6a35
1272 #
1273 AC_DEFUN([LC_INODEOPS_USE_UMODE_T],
1274 [AC_MSG_CHECKING([if inode_operations use umode_t as parameter])
1275 tmp_flags="$EXTRA_KCFLAGS"
1276 EXTRA_KCFLAGS="-Werror"
1277 LB_LINUX_TRY_COMPILE([
1278         #include <linux/fs.h>
1279         #include <linux/types.h>
1280         int my_mknod(struct inode *dir, struct dentry *dchild,
1281                      umode_t mode, dev_t dev)
1282         {
1283                 return 0;
1284         }
1285 ],[
1286         struct inode_operations ops;
1287         ops.mknod = my_mknod;
1288 ],[
1289         AC_DEFINE(HAVE_INODEOPS_USE_UMODE_T, 1,
1290                   [inode_operations use umode_t as parameter])
1291         AC_MSG_RESULT([yes])
1292 ],[
1293         AC_MSG_RESULT([no])
1294 ])
1295 EXTRA_KCFLAGS="$tmp_flags"
1296 ])
1297
1298 # 3.4 kmap_atomic removes second argument
1299 # see kernel commit 1ec9c5ddc17aa398f05646abfcbaf315b544e62f
1300 #
1301 AC_DEFUN([LC_KMAP_ATOMIC_HAS_1ARG],
1302 [AC_MSG_CHECKING([if kmap_atomic has only 1 argument])
1303 LB_LINUX_TRY_COMPILE([
1304         #include <linux/highmem.h>
1305 ],[
1306         kmap_atomic(NULL);
1307 ],[
1308         AC_DEFINE(HAVE_KMAP_ATOMIC_HAS_1ARG, 1,
1309                   [have kmap_atomic has only 1 argument])
1310         AC_MSG_RESULT([yes])
1311 ],[
1312         AC_MSG_RESULT([no])
1313 ])
1314 ])
1315
1316 #
1317 # 3.4 switchs touch_atime to struct path
1318 # see kernel commit 68ac1234fb949b66941d94dce4157742799fc581
1319 #
1320 AC_DEFUN([LC_TOUCH_ATIME_1ARG],
1321 [AC_MSG_CHECKING([if touch_atime use one argument])
1322 LB_LINUX_TRY_COMPILE([
1323         #include <linux/fs.h>
1324 ],[
1325         touch_atime((struct path *)NULL);
1326 ],[
1327         AC_DEFINE(HAVE_TOUCH_ATIME_1ARG, 1,
1328                   [touch_atime use one argument])
1329         AC_MSG_RESULT([yes])
1330 ],[
1331         AC_MSG_RESULT([no])
1332 ])
1333 ])
1334
1335 #
1336 # 3.4 converts d_alloc_root to d_make_root
1337 # see kernel commit 32991ab305ace7017c62f8eecbe5eb36dc32e13b
1338 #
1339 AC_DEFUN([LC_HAVE_D_MAKE_ROOT],
1340 [AC_MSG_CHECKING([if have d_make_root])
1341 LB_LINUX_TRY_COMPILE([
1342         #include <linux/fs.h>
1343 ],[
1344         d_make_root((struct inode *)NULL);
1345 ],[
1346         AC_DEFINE(HAVE_D_MAKE_ROOT, 1,
1347                   [have d_make_root])
1348         AC_MSG_RESULT([yes])
1349 ],[
1350         AC_MSG_RESULT([no])
1351 ])
1352 ])
1353
1354 #
1355 # 3.5 renames end_writeback() back to clear_inode()...
1356 # see kernel commit dbd5768f87ff6fb0a4fe09c4d7b6c4a24de99430
1357 #
1358 AC_DEFUN([LC_HAVE_CLEAR_INODE],
1359 [AC_MSG_CHECKING([if have clear_inode])
1360 LB_LINUX_TRY_COMPILE([
1361         #include <linux/fs.h>
1362 ],[
1363         clear_inode((struct inode *)NULL);
1364 ],[
1365         AC_DEFINE(HAVE_CLEAR_INODE, 1,
1366                   [have clear_inode])
1367         AC_MSG_RESULT([yes])
1368 ],[
1369         AC_MSG_RESULT([no])
1370 ])
1371 ])
1372
1373 #
1374 # 3.5 encode_fh has parent inode passed in directly
1375 # see kernel commit b0b0382b
1376 #
1377 AC_DEFUN([LC_HAVE_ENCODE_FH_PARENT],
1378 [AC_MSG_CHECKING([if encode_fh have parent inode as parameter])
1379 tmp_flags="$EXTRA_KCFLAGS"
1380 EXTRA_KCFLAGS="-Werror"
1381 LB_LINUX_TRY_COMPILE([
1382         #include <linux/exportfs.h>
1383         #include <linux/fs.h>
1384         #include <linux/types.h>
1385         int ll_encode_fh(struct inode *i, __u32 *a, int *b, struct inode *p)
1386         {
1387                 return 0;
1388         }
1389 ],[
1390         struct export_operations exp_op;
1391         exp_op.encode_fh = ll_encode_fh;
1392 ],[
1393         AC_DEFINE(HAVE_ENCODE_FH_PARENT, 1,
1394                   [have parent inode as parameter])
1395         AC_MSG_RESULT([yes])
1396 ],[
1397         AC_MSG_RESULT([no])
1398 ])
1399 EXTRA_KCFLAGS="$tmp_flags"
1400 ])
1401
1402 # 3.5 has generic_file_llseek_size with 5 args
1403 AC_DEFUN([LC_FILE_LLSEEK_SIZE_5ARG],
1404 [AC_MSG_CHECKING([if kernel has generic_file_llseek_size with 5 args])
1405 LB_LINUX_TRY_COMPILE([
1406         #include <linux/fs.h>
1407 ],[
1408         generic_file_llseek_size(NULL, 0, 0, 0, 0);
1409 ], [
1410         AC_MSG_RESULT([yes])
1411         AC_DEFINE(HAVE_FILE_LLSEEK_SIZE_5ARGS, 1,
1412                 [kernel has generic_file_llseek_size with 5 args])
1413 ],[
1414         AC_MSG_RESULT([no])
1415 ])
1416 ])
1417
1418 #
1419 # 3.6 switch i_dentry/d_alias from list to hlist
1420 #
1421 AC_DEFUN([LC_HAVE_DENTRY_D_ALIAS_HLIST],
1422 [AC_MSG_CHECKING([if i_dentry/d_alias uses hlist])
1423 tmp_flags="$EXTRA_KCFLAGS"
1424 EXTRA_KCFLAGS="-Werror"
1425 LB_LINUX_TRY_COMPILE([
1426         #include <linux/fs.h>
1427         #include <linux/list.h>
1428 ],[
1429         struct inode inode;
1430         struct dentry dentry;
1431         struct hlist_head head;
1432         struct hlist_node node;
1433         inode.i_dentry = head;
1434         dentry.d_alias = node;
1435 ],[
1436         AC_DEFINE(HAVE_DENTRY_D_ALIAS_HLIST, 1,
1437                   [have i_dentry/d_alias uses hlist])
1438         AC_MSG_RESULT([yes])
1439 ],[
1440         AC_MSG_RESULT([no])
1441 ])
1442 EXTRA_KCFLAGS="$tmp_flags"
1443 ])
1444
1445 #
1446 # 3.6 dentry_open uses struct path as first argument
1447 # see kernel commit 765927b2
1448 #
1449 AC_DEFUN([LC_DENTRY_OPEN_USE_PATH],
1450 [AC_MSG_CHECKING([if dentry_open uses struct path as first argument])
1451 tmp_flags="$EXTRA_KCFLAGS"
1452 EXTRA_KCFLAGS="-Werror"
1453 LB_LINUX_TRY_COMPILE([
1454         #include <linux/fs.h>
1455         #include <linux/path.h>
1456 ],[
1457         struct path path;
1458         dentry_open(&path, 0, NULL);
1459 ],[
1460         AC_DEFINE(HAVE_DENTRY_OPEN_USE_PATH, 1,
1461                   [dentry_open uses struct path as first argument])
1462         AC_MSG_RESULT([yes])
1463 ],[
1464         AC_MSG_RESULT([no])
1465 ])
1466 EXTRA_KCFLAGS="$tmp_flags"
1467 ])
1468
1469 #
1470 # 3.6 vfs adds iop->atomic_open
1471 #
1472 AC_DEFUN([LC_HAVE_IOP_ATOMIC_OPEN],
1473 [AC_MSG_CHECKING([if iop has atomic_open])
1474 LB_LINUX_TRY_COMPILE([
1475         #include <linux/fs.h>
1476 ],[
1477         struct inode_operations iop;
1478         iop.atomic_open = NULL;
1479 ],[
1480         AC_DEFINE(HAVE_IOP_ATOMIC_OPEN, 1,
1481                   [have iop atomic_open])
1482         AC_MSG_RESULT([yes])
1483 ],[
1484         AC_MSG_RESULT([no])
1485 ])
1486 ])
1487
1488 #
1489 # 3.7 posix_acl_{to,from}_xattr take struct user_namespace
1490 #
1491 AC_DEFUN([LC_HAVE_POSIXACL_USER_NS],
1492 [AC_MSG_CHECKING([if posix_acl_to_xattr takes struct user_namespace])
1493 LB_LINUX_TRY_COMPILE([
1494         #include <linux/fs.h>
1495         #include <linux/posix_acl_xattr.h>
1496 ],[
1497         posix_acl_to_xattr((struct user_namespace *)NULL, NULL, NULL, 0);
1498 ],[
1499         AC_DEFINE(HAVE_POSIXACL_USER_NS, 1,
1500                   [posix_acl_to_xattr takes struct user_namespace])
1501         AC_MSG_RESULT([yes])
1502 ],[
1503         AC_MSG_RESULT([no])
1504 ])
1505 ])
1506
1507 #
1508 # 3.9 uses hlist_for_each_entry with 3 args
1509 # b67bfe0d42cac56c512dd5da4b1b347a23f4b70a
1510 #
1511 AC_DEFUN([LC_HAVE_HLIST_FOR_EACH_3ARG],
1512 [AC_MSG_CHECKING([if hlist_for_each_entry has 3 args])
1513 LB_LINUX_TRY_COMPILE([
1514         #include <linux/list.h>
1515         #include <linux/fs.h>
1516 ],[
1517         struct inode *inode;
1518         struct dentry *dentry;
1519         hlist_for_each_entry(dentry, &inode->i_dentry, d_alias) {
1520                 continue;
1521         }
1522 ],[
1523         AC_DEFINE(HAVE_HLIST_FOR_EACH_3ARG, 1, [3 args])
1524         AC_MSG_RESULT([yes])
1525 ],[
1526         AC_MSG_RESULT([no])
1527 ])
1528 ])
1529
1530 #
1531 # 3.9 killed f_vfsmnt by
1532 # 182be684784334598eee1d90274e7f7aa0063616
1533 # replacement is f_path.mnt
1534 #
1535 AC_DEFUN([LC_HAVE_F_PATH_MNT],
1536 [AC_MSG_CHECKING([if struct file has f_path.mnt])
1537 LB_LINUX_TRY_COMPILE([
1538         #include <linux/fs.h>
1539 ],[
1540         struct file *fp = NULL;
1541         struct path  path;
1542
1543         path.mnt = fp->f_path.mnt;
1544 ],[
1545         AC_DEFINE(HAVE_F_PATH_MNT,1,[yes])
1546         AC_MSG_RESULT([yes])
1547 ],[
1548         AC_MSG_RESULT([no])
1549 ])
1550 ])
1551
1552 #
1553 # LC_PROG_LINUX
1554 #
1555 # Lustre linux kernel checks
1556 #
1557 AC_DEFUN([LC_PROG_LINUX],
1558          [
1559          LC_CONFIG_PINGER
1560          LC_CONFIG_CHECKSUM
1561          LC_CONFIG_LIBLUSTRE_RECOVERY
1562          LC_CONFIG_HEALTH_CHECK_WRITE
1563          LC_CONFIG_LRU_RESIZE
1564          LC_LLITE_LLOOP_MODULE
1565
1566          # RHEL4 patches
1567          LC_EXPORT_TRUNCATE_COMPLETE
1568
1569          LC_BIT_SPINLOCK_H
1570
1571          LC_CAPA_CRYPTO
1572          LC_CONFIG_RMTCLIENT
1573          LC_CONFIG_GSS
1574
1575          # 2.6.12
1576          LC_RW_TREE_LOCK
1577
1578          #2.6.18 + RHEL5 (fc6)
1579          LC_LINUX_FIEMAP_H
1580
1581          # raid5-zerocopy patch
1582          LC_PAGE_CONSTANT
1583
1584          # 2.6.22
1585          LC_FS_RENAME_DOES_D_MOVE
1586
1587          # 2.6.23
1588          LC_UNREGISTER_BLKDEV_RETURN_INT
1589          LC_PROCFS_USERS
1590
1591          # 2.6.24
1592          LC_BIO_ENDIO_2ARG
1593          LC_PROCFS_DELETED
1594
1595          # 2.6.26
1596          LC_FS_STRUCT_USE_PATH
1597
1598          # 2.6.27
1599          LC_SECURITY_PLUG  # for SLES10 SP2
1600          LC_INODE_PERMISION_2ARGS
1601          LC_QUOTA_ON_5ARGS
1602          LC_QUOTA_OFF_3ARGS
1603          LC_LOCK_MAP_ACQUIRE
1604
1605          # 2.6.27.15-2 sles11
1606          LC_BI_HW_SEGMENTS
1607          LC_HAVE_QUOTAIO_H
1608
1609          # 2.6.32
1610          LC_BLK_QUEUE_MAX_SEGMENTS
1611
1612          # 2.6.34
1613          LC_HAVE_DQUOT_FS_DISK_QUOTA
1614          LC_HAVE_DQUOT_SUSPEND
1615
1616          # 2.6.35, 3.0.0
1617          LC_FILE_FSYNC
1618          LC_EXPORT_SIMPLE_SETATTR
1619
1620          # 2.6.36
1621          LC_FS_STRUCT_RWLOCK
1622          LC_SBOPS_EVICT_INODE
1623
1624          # 2.6.37
1625          LC_KERNEL_LOCKED
1626
1627          # 2.6.38
1628          LC_BLKDEV_GET_BY_DEV
1629          LC_GENERIC_PERMISSION
1630          LC_QUOTA_ON_USE_PATH
1631          LC_DCACHE_LOCK
1632          LC_INODE_I_RCU
1633          LC_D_COMPARE_7ARGS
1634          LC_D_DELETE_CONST
1635
1636          # 2.6.39
1637          LC_REQUEST_QUEUE_UNPLUG_FN
1638          LC_HAVE_FSTYPE_MOUNT
1639
1640          # 3.0
1641          LC_DIRTY_INODE_WITH_FLAG
1642
1643          # 3.1
1644          LC_LM_XXX_LOCK_MANAGER_OPS
1645          LC_INODE_DIO_WAIT
1646          LC_IOP_GET_ACL
1647          LC_FILE_LLSEEK_SIZE
1648
1649          # 3.1.1
1650          LC_BLOCKS_FOR_TRUNCATE
1651
1652          # 3.2
1653          LC_HAVE_VOID_MAKE_REQUEST_FN
1654          LC_HAVE_PROTECT_I_NLINK
1655
1656          # 3.3
1657          LC_HAVE_MIGRATE_HEADER
1658          LC_MIGRATEPAGE_4ARGS
1659          LC_SUPEROPS_USE_DENTRY
1660          LC_INODEOPS_USE_UMODE_T
1661
1662          # 3.4
1663          LC_TOUCH_ATIME_1ARG
1664          LC_HAVE_D_MAKE_ROOT
1665          LC_KMAP_ATOMIC_HAS_1ARG
1666
1667          # 3.5
1668          LC_HAVE_CLEAR_INODE
1669          LC_HAVE_ENCODE_FH_PARENT
1670          LC_FILE_LLSEEK_SIZE_5ARG
1671
1672          # 3.6
1673          LC_HAVE_DENTRY_D_ALIAS_HLIST
1674          LC_DENTRY_OPEN_USE_PATH
1675          LC_HAVE_IOP_ATOMIC_OPEN
1676
1677          # 3.7
1678          LC_HAVE_POSIXACL_USER_NS
1679
1680          # 3.9
1681          LC_HAVE_HLIST_FOR_EACH_3ARG
1682          LC_HAVE_F_PATH_MNT
1683
1684          #
1685          if test x$enable_server = xyes ; then
1686                 AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
1687                 LC_FUNC_DEV_SET_RDONLY
1688                 LC_STACK_SIZE
1689                 LC_QUOTA64
1690                 LC_QUOTA_CONFIG
1691          fi
1692 ])
1693
1694 #
1695 # LC_CONFIG_CLIENT_SERVER
1696 #
1697 # Build client/server sides of Lustre
1698 #
1699 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
1700 [AC_MSG_CHECKING([whether to build Lustre server support])
1701 AC_ARG_ENABLE([server],
1702         AC_HELP_STRING([--disable-server],
1703                         [disable Lustre server support]),
1704         [],[enable_server='yes'])
1705 AC_MSG_RESULT([$enable_server])
1706
1707 AC_MSG_CHECKING([whether to build Lustre client support])
1708 AC_ARG_ENABLE([client],
1709         AC_HELP_STRING([--disable-client],
1710                         [disable Lustre client support]),
1711         [],[enable_client='yes'])
1712 AC_MSG_RESULT([$enable_client])])
1713
1714 #
1715 # LC_CONFIG_LIBLUSTRE
1716 #
1717 # whether to build liblustre
1718 #
1719 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
1720 [AC_MSG_CHECKING([whether to build Lustre library])
1721 AC_ARG_ENABLE([liblustre],
1722         AC_HELP_STRING([--disable-liblustre],
1723                         [disable building of Lustre library]),
1724         [],[enable_liblustre=$with_sysio])
1725 AC_MSG_RESULT([$enable_liblustre])
1726 # only build sysio if liblustre is built
1727 with_sysio="$enable_liblustre"
1728
1729 AC_MSG_CHECKING([whether to build liblustre tests])
1730 AC_ARG_ENABLE([liblustre-tests],
1731         AC_HELP_STRING([--enable-liblustre-tests],
1732                         [enable liblustre tests, if --disable-tests is used]),
1733         [],[enable_liblustre_tests=$enable_tests])
1734 if test x$enable_liblustre != xyes ; then
1735    enable_liblustre_tests='no'
1736 fi
1737 AC_MSG_RESULT([$enable_liblustre_tests])
1738
1739 AC_MSG_CHECKING([whether to enable liblustre acl])
1740 AC_ARG_ENABLE([liblustre-acl],
1741         AC_HELP_STRING([--disable-liblustre-acl],
1742                         [disable ACL support for liblustre]),
1743         [],[enable_liblustre_acl=yes])
1744 AC_MSG_RESULT([$enable_liblustre_acl])
1745 if test x$enable_liblustre_acl = xyes ; then
1746   AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
1747 fi
1748
1749 #
1750 # --enable-mpitest
1751 #
1752 AC_ARG_ENABLE(mpitests,
1753         AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
1754                            [include mpi tests]),
1755         [
1756          enable_mpitests=yes
1757          case $enableval in
1758          yes)
1759                 MPICC_WRAPPER=mpicc
1760                 ;;
1761          no)
1762                 enable_mpitests=no
1763                 ;;
1764          *)
1765                 MPICC_WRAPPER=$enableval
1766                  ;;
1767          esac
1768         ],
1769         [
1770         MPICC_WRAPPER=mpicc
1771         enable_mpitests=yes
1772         ]
1773 )
1774
1775 if test x$enable_mpitests != xno; then
1776         AC_MSG_CHECKING([whether mpitests can be built])
1777         oldcc=$CC
1778         CC=$MPICC_WRAPPER
1779         AC_LINK_IFELSE(
1780             [AC_LANG_PROGRAM([[
1781                     #include <mpi.h>
1782                 ]],[[
1783                     int flag;
1784                     MPI_Initialized(&flag);
1785                 ]])],
1786             [
1787                     AC_MSG_RESULT([yes])
1788             ],[
1789                     AC_MSG_RESULT([no])
1790                     enable_mpitests=no
1791         ])
1792         CC=$oldcc
1793 fi
1794 AC_SUBST(MPICC_WRAPPER)
1795
1796 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
1797 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
1798
1799 LC_CONFIG_PINGER
1800 LC_CONFIG_LIBLUSTRE_RECOVERY
1801 ])
1802
1803 #
1804 # LC_CONFIG_QUOTA
1805 #
1806 # whether to enable quota support global control
1807 #
1808 AC_DEFUN([LC_CONFIG_QUOTA],
1809 [AC_ARG_ENABLE([quota],
1810         AC_HELP_STRING([--enable-quota],
1811                         [enable quota support]),
1812         [],[enable_quota='yes'])
1813 ])
1814
1815 AC_DEFUN([LC_QUOTA],
1816 [#check global
1817 LC_CONFIG_QUOTA
1818 #check for utils
1819 AC_CHECK_HEADER(sys/quota.h,
1820                 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
1821                 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
1822 ])
1823
1824 #
1825 # LC_CONFIG_SPLIT
1826 #
1827 # whether to enable split support
1828 #
1829 AC_DEFUN([LC_CONFIG_SPLIT],
1830 [AC_MSG_CHECKING([whether to enable split support])
1831 AC_ARG_ENABLE([split],
1832         AC_HELP_STRING([--enable-split],
1833                         [enable split support]),
1834         [],[enable_split='no'])
1835 AC_MSG_RESULT([$enable_split])
1836 if test x$enable_split != xno; then
1837    AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
1838 fi
1839 ])
1840
1841 #
1842 # LC_LLITE_LLOOP_MODULE
1843 # lloop_llite.ko does not currently work with page sizes
1844 # of 64k or larger.
1845 #
1846 AC_DEFUN([LC_LLITE_LLOOP_MODULE],
1847 [AC_MSG_CHECKING([whether to enable llite_lloop module])
1848 LB_LINUX_TRY_COMPILE([
1849         #include <asm/page.h>
1850 ],[
1851         #if PAGE_SIZE >= 65536
1852         #error "PAGE_SIZE >= 65536"
1853         #endif
1854 ],[
1855         enable_llite_lloop_module='yes'
1856         AC_MSG_RESULT([yes])
1857 ],[
1858         enable_llite_lloop_module='no'
1859         AC_MSG_RESULT([no])
1860 ])
1861 ])
1862
1863 #
1864 # LC_OSD_ADDON
1865 #
1866 # configure support for optional OSD implementation
1867 #
1868 AC_DEFUN([LC_OSD_ADDON],
1869 [AC_MSG_CHECKING([for osd])
1870 AC_ARG_WITH([osd],
1871         AC_HELP_STRING([--with-osd=path],
1872                        [set path to optional osd]),
1873         [
1874                 case $with_osd in
1875                         no)     ENABLEOSDADDON=0
1876                                 ;;
1877                         *)      OSDADDON="${with_osd}"
1878                                 ENABLEOSDADDON=1
1879                                 ;;
1880                 esac
1881         ], [
1882                 ENABLEOSDADDON=0
1883         ])
1884 if test $ENABLEOSDADDON -eq 0; then
1885         AC_MSG_RESULT([no])
1886         OSDADDON=
1887 else
1888         OSDMODNAME=`basename $OSDADDON`
1889         if test -e $LUSTRE/$OSDMODNAME; then
1890                 AC_MSG_RESULT([can't link])
1891                 OSDADDON=
1892         elif ln -s $OSDADDON $LUSTRE/$OSDMODNAME; then
1893                 AC_MSG_RESULT([$OSDMODNAME])
1894                 OSDADDON="subdir-m += $OSDMODNAME"
1895         else
1896                 AC_MSG_RESULT([can't link])
1897                 OSDADDON=
1898         fi
1899 fi
1900 AC_SUBST(OSDADDON)
1901 ])
1902
1903 #
1904 # LC_CONFIGURE
1905 #
1906 # other configure checks
1907 #
1908 AC_DEFUN([LC_CONFIGURE],
1909 [LC_CONFIG_OBD_BUFFER_SIZE
1910
1911 if test $target_cpu == "i686" -o $target_cpu == "x86_64"; then
1912         CFLAGS="$CFLAGS -Werror"
1913 fi
1914
1915 # maximum MDS thread count
1916 LC_MDS_MAX_THREADS
1917
1918 # include/liblustre.h
1919 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
1920
1921 # liblustre/llite_lib.h
1922 AC_CHECK_HEADERS([xtio.h file.h])
1923
1924 # liblustre/dir.c
1925 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
1926
1927 # liblustre/lutil.c
1928 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
1929 AC_CHECK_FUNCS([inet_ntoa])
1930
1931 # libsysio/src/readlink.c
1932 LC_READLINK_SSIZE_T
1933
1934 # lvfs/prng.c - depends on linux/types.h from liblustre/dir.c
1935 AC_CHECK_HEADERS([linux/random.h], [], [],
1936                  [#ifdef HAVE_LINUX_TYPES_H
1937                   # include <linux/types.h>
1938                   #endif
1939                  ])
1940
1941 # utils/llverfs.c
1942 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
1943
1944 # check for -lz support
1945 ZLIB=""
1946 AC_CHECK_LIB([z],
1947              [adler32],
1948              [AC_CHECK_HEADERS([zlib.h],
1949                                [ZLIB="-lz"
1950                                 AC_DEFINE([HAVE_ADLER], 1,
1951                                           [support alder32 checksum type])],
1952                                [AC_MSG_WARN([No zlib-devel package found,
1953                                              unable to use adler32 checksum])])],
1954              [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
1955 )
1956 AC_SUBST(ZLIB)
1957
1958 SELINUX=""
1959 AC_CHECK_LIB([selinux],
1960                 [is_selinux_enabled],
1961                 [AC_CHECK_HEADERS([selinux.h],
1962                                 [SELINUX="-lselinux"
1963                                 AC_DEFINE([HAVE_SELINUX], 1,
1964                                                 [support for selinux ])],
1965                                 [AC_MSG_WARN([No selinux-devel package found,
1966                                                 unable to build selinux enabled
1967                                                 tools])])],
1968                 [AC_MSG_WARN([No selinux package found, unable to build selinux
1969                                 enabled tools])]
1970 )
1971 AC_SUBST(SELINUX)
1972
1973 # Super safe df
1974 AC_ARG_ENABLE([mindf],
1975       AC_HELP_STRING([--enable-mindf],
1976                       [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
1977       [],[])
1978 if test "$enable_mindf" = "yes" ;  then
1979       AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
1980 fi
1981
1982 AC_ARG_ENABLE([fail_alloc],
1983         AC_HELP_STRING([--disable-fail-alloc],
1984                 [disable randomly alloc failure]),
1985         [],[enable_fail_alloc=yes])
1986 AC_MSG_CHECKING([whether to randomly failing memory alloc])
1987 AC_MSG_RESULT([$enable_fail_alloc])
1988 if test x$enable_fail_alloc != xno ; then
1989         AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
1990 fi
1991
1992 AC_ARG_ENABLE([invariants],
1993         AC_HELP_STRING([--enable-invariants],
1994                 [enable invariant checking (cpu intensive)]),
1995         [],[])
1996 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
1997 AC_MSG_RESULT([$enable_invariants])
1998 if test x$enable_invariants = xyes ; then
1999         AC_DEFINE([CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK], 1, [enable invariant checking])
2000 fi
2001
2002 AC_ARG_ENABLE([lu_ref],
2003         AC_HELP_STRING([--enable-lu_ref],
2004                 [enable lu_ref reference tracking code]),
2005         [],[])
2006 AC_MSG_CHECKING([whether to track references with lu_ref])
2007 AC_MSG_RESULT([$enable_lu_ref])
2008 if test x$enable_lu_ref = xyes ; then
2009         AC_DEFINE([USE_LU_REF], 1, [enable lu_ref reference tracking code])
2010 fi
2011
2012 AC_ARG_ENABLE([pgstate-track],
2013               AC_HELP_STRING([--enable-pgstate-track],
2014                              [enable page state tracking]),
2015               [enable_pgstat_track='yes'],[])
2016 AC_MSG_CHECKING([whether to enable page state tracking])
2017 AC_MSG_RESULT([$enable_pgstat_track])
2018 if test x$enable_pgstat_track = xyes ; then
2019         AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
2020                   [enable page state tracking code])
2021 fi
2022 ])
2023
2024 #
2025 # LC_CONDITIONALS
2026 #
2027 # AM_CONDITIONALS for lustre
2028 #
2029 AC_DEFUN([LC_CONDITIONALS],
2030 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
2031 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
2032 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
2033 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
2034 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
2035 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
2036 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
2037 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
2038 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
2039 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
2040 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
2041 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
2042 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
2043 AM_CONDITIONAL(LLITE_LLOOP, test x$enable_llite_lloop_module = xyes)
2044 ])
2045
2046 #
2047 # LC_CONFIG_FILES
2048 #
2049 # files that should be generated with AC_OUTPUT
2050 #
2051 AC_DEFUN([LC_CONFIG_FILES],
2052 [AC_CONFIG_FILES([
2053 lustre/Makefile
2054 lustre/autoMakefile
2055 lustre/autoconf/Makefile
2056 lustre/conf/Makefile
2057 lustre/contrib/Makefile
2058 lustre/doc/Makefile
2059 lustre/include/Makefile
2060 lustre/include/lustre_ver.h
2061 lustre/include/linux/Makefile
2062 lustre/include/darwin/Makefile
2063 lustre/include/lustre/Makefile
2064 lustre/kernel_patches/targets/2.6-rhel6.target
2065 lustre/kernel_patches/targets/2.6-rhel5.target
2066 lustre/kernel_patches/targets/2.6-sles11.target
2067 lustre/kernel_patches/targets/3.0-sles11.target
2068 lustre/kernel_patches/targets/2.6-fc11.target
2069 lustre/kernel_patches/targets/2.6-fc12.target
2070 lustre/kernel_patches/targets/2.6-fc15.target
2071 lustre/kernel_patches/targets/3.x-fc18.target
2072 lustre/ldlm/Makefile
2073 lustre/fid/Makefile
2074 lustre/fid/autoMakefile
2075 lustre/liblustre/Makefile
2076 lustre/liblustre/tests/Makefile
2077 lustre/liblustre/tests/mpi/Makefile
2078 lustre/llite/Makefile
2079 lustre/llite/autoMakefile
2080 lustre/lclient/Makefile
2081 lustre/lov/Makefile
2082 lustre/lov/autoMakefile
2083 lustre/lvfs/Makefile
2084 lustre/lvfs/autoMakefile
2085 lustre/mdc/Makefile
2086 lustre/mdc/autoMakefile
2087 lustre/lmv/Makefile
2088 lustre/lmv/autoMakefile
2089 lustre/lfsck/Makefile
2090 lustre/lfsck/autoMakefile
2091 lustre/mdt/Makefile
2092 lustre/mdt/autoMakefile
2093 lustre/mdd/Makefile
2094 lustre/mdd/autoMakefile
2095 lustre/fld/Makefile
2096 lustre/fld/autoMakefile
2097 lustre/obdclass/Makefile
2098 lustre/obdclass/autoMakefile
2099 lustre/obdclass/linux/Makefile
2100 lustre/obdecho/Makefile
2101 lustre/obdecho/autoMakefile
2102 lustre/ofd/Makefile
2103 lustre/ofd/autoMakefile
2104 lustre/osc/Makefile
2105 lustre/osc/autoMakefile
2106 lustre/ost/Makefile
2107 lustre/ost/autoMakefile
2108 lustre/osd-ldiskfs/Makefile
2109 lustre/osd-ldiskfs/autoMakefile
2110 lustre/osd-zfs/Makefile
2111 lustre/osd-zfs/autoMakefile
2112 lustre/mgc/Makefile
2113 lustre/mgc/autoMakefile
2114 lustre/mgs/Makefile
2115 lustre/mgs/autoMakefile
2116 lustre/target/Makefile
2117 lustre/ptlrpc/Makefile
2118 lustre/ptlrpc/autoMakefile
2119 lustre/ptlrpc/gss/Makefile
2120 lustre/ptlrpc/gss/autoMakefile
2121 lustre/quota/Makefile
2122 lustre/quota/autoMakefile
2123 lustre/scripts/Makefile
2124 lustre/tests/Makefile
2125 lustre/tests/mpi/Makefile
2126 lustre/utils/Makefile
2127 lustre/utils/gss/Makefile
2128 lustre/osp/Makefile
2129 lustre/osp/autoMakefile
2130 lustre/lod/Makefile
2131 lustre/lod/autoMakefile
2132 lustre/obdclass/darwin/Makefile
2133 ])
2134 ])