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 AC_DEFUN([LC_GLIBC_SUPPORT_FHANDLES],
  86 [AC_MSG_CHECKING([if file handle and related syscalls are supported by glibc])
  87 AC_CHECK_FUNCS([name_to_handle_at
  88 ],[
  89         AC_MSG_RESULT([yes])
  90         AC_DEFINE(HAVE_FHANDLE_GLIBC_SUPPORT, 1,
  91                 [file handle and related syscalls are supported])
  92 ],[
  93         AC_MSG_RESULT([no])
  94 ])
  95 ])
  96
  97 #
  98 # LC_FUNC_DEV_SET_RDONLY
  99 #
 100 # check whether dev_set_rdonly is exported.  This is needed until we
 101 # have another mechanism to fence IO from the underlying device.
 102 #
 103 AC_DEFUN([LC_FUNC_DEV_SET_RDONLY],
 104 [LB_CHECK_SYMBOL_EXPORT([dev_set_rdonly],
 105 [block/ll_rw_block.c,block/blk-core.c],[
 106         AC_DEFINE(HAVE_DEV_SET_RDONLY, 1, [kernel exports dev_set_rdonly])
 107 ],[
 108         AC_MSG_WARN([kernel missing dev_set_rdonly patch for testing])
 109 ])
 110 ])
 111
 112 #
 113 # Ensure stack size big than 8k in Lustre server (all kernels)
 114 #
 115 AC_DEFUN([LC_STACK_SIZE],
 116 [AC_MSG_CHECKING([stack size big than 8k])
 117 LB_LINUX_TRY_COMPILE([
 118         #include <linux/thread_info.h>
 119 ],[
 120         #if THREAD_SIZE < 8192
 121         #error "stack size < 8192"
 122         #endif
 123 ],[
 124         AC_MSG_RESULT(yes)
 125 ],[
 126         AC_MSG_ERROR([Lustre requires that Linux is configured with at least a 8KB stack.])
 127 ])
 128 ])
 129
 130 #
 131 # Allow the user to set the MDS thread upper limit
 132 #
 133 AC_DEFUN([LC_MDS_MAX_THREADS],
 134 [
 135         AC_ARG_WITH([mds_max_threads],
 136         AC_HELP_STRING([--with-mds-max-threads=count],
 137                        [maximum threads available on the MDS: (default=512)]),
 138         [
 139                 MDS_THREAD_COUNT=$with_mds_max_threads
 140                 AC_DEFINE_UNQUOTED(MDS_MAX_THREADS, $MDS_THREAD_COUNT, [maximum number of MDS threads])
 141         ])
 142 ])
 143
 144 #
 145 # LC_CONFIG_PINGER
 146 #
 147 # the pinger is temporary, until we have the recovery node in place
 148 #
 149 AC_DEFUN([LC_CONFIG_PINGER],
 150 [AC_MSG_CHECKING([whether to enable pinger support])
 151 AC_ARG_ENABLE([pinger],
 152         AC_HELP_STRING([--disable-pinger],
 153                         [disable recovery pinger support]),
 154         [],[enable_pinger='yes'])
 155 AC_MSG_RESULT([$enable_pinger])
 156 if test x$enable_pinger != xno ; then
 157   AC_DEFINE(ENABLE_PINGER, 1, Use the Pinger)
 158 fi
 159 ])
 160
 161 #
 162 # LC_CONFIG_CHECKSUM
 163 #
 164 # do checksum of bulk data between client and OST
 165 #
 166 AC_DEFUN([LC_CONFIG_CHECKSUM],
 167 [AC_MSG_CHECKING([whether to enable data checksum support])
 168 AC_ARG_ENABLE([checksum],
 169        AC_HELP_STRING([--disable-checksum],
 170                        [disable data checksum support]),
 171        [],[enable_checksum='yes'])
 172 AC_MSG_RESULT([$enable_checksum])
 173 if test x$enable_checksum != xno ; then
 174   AC_DEFINE(ENABLE_CHECKSUM, 1, do data checksums)
 175 fi
 176 ])
 177
 178 #
 179 # LC_CONFIG_LIBLUSTRE_RECOVERY
 180 #
 181 AC_DEFUN([LC_CONFIG_LIBLUSTRE_RECOVERY],
 182 [AC_MSG_CHECKING([whether to enable liblustre recovery support])
 183 AC_ARG_ENABLE([liblustre-recovery],
 184         AC_HELP_STRING([--disable-liblustre-recovery],
 185                         [disable liblustre recovery support]),
 186         [],[enable_liblustre_recovery='yes'])
 187 AC_MSG_RESULT([$enable_liblustre_recovery])
 188 if test x$enable_liblustre_recovery != xno ; then
 189   AC_DEFINE(ENABLE_LIBLUSTRE_RECOVERY, 1, Liblustre Can Recover)
 190 fi
 191 ])
 192
 193 #
 194 # LC_CONFIG_HEALTH_CHECK_WRITE
 195 #
 196 # Turn off the actual write to the disk
 197 #
 198 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE],
 199 [AC_MSG_CHECKING([whether to enable a write with the health check])
 200 AC_ARG_ENABLE([health_write],
 201         AC_HELP_STRING([--enable-health_write],
 202                         [enable disk writes when doing health check]),
 203         [],[enable_health_write='no'])
 204 AC_MSG_RESULT([$enable_health_write])
 205 if test x$enable_health_write != xno ; then
 206   AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, Write when Checking Health)
 207 fi
 208 ])
 209
 210 AC_DEFUN([LC_CONFIG_LRU_RESIZE],
 211 [AC_MSG_CHECKING([whether to enable lru self-adjusting])
 212 AC_ARG_ENABLE([lru_resize],
 213         AC_HELP_STRING([--enable-lru-resize],
 214                         [enable lru resize support]),
 215         [],[enable_lru_resize='yes'])
 216 AC_MSG_RESULT([$enable_lru_resize])
 217 if test x$enable_lru_resize != xno; then
 218    AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])
 219 fi
 220 ])
 221
 222 #
 223 # Quota support. The kernel must support CONFIG_QUOTA.
 224 #
 225 AC_DEFUN([LC_QUOTA_CONFIG],
 226 [LB_LINUX_CONFIG_IM([QUOTA],[],[
 227         AC_MSG_ERROR([Lustre quota requires that CONFIG_QUOTA is enabled in your kernel.])
 228         ])
 229 ])
 230
 231 # truncate_complete_page() has never been exported from an upstream kernel
 232 # remove_from_page_cache() was exported between 2.6.35 and 2.6.38
 233 # delete_from_page_cache() is exported from 2.6.39
 234 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE_PAGE],
 235          [LB_CHECK_SYMBOL_EXPORT([truncate_complete_page],
 236                                  [mm/truncate.c],
 237                                  [AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
 238                                             [kernel export truncate_complete_page])])
 239           LB_CHECK_SYMBOL_EXPORT([remove_from_page_cache],
 240                                  [mm/filemap.c],
 241                                  [AC_DEFINE(HAVE_REMOVE_FROM_PAGE_CACHE, 1,
 242                                             [kernel export remove_from_page_cache])])
 243           LB_CHECK_SYMBOL_EXPORT([delete_from_page_cache],
 244                                  [mm/filemap.c],
 245                                  [AC_DEFINE(HAVE_DELETE_FROM_PAGE_CACHE, 1,
 246                                             [kernel export delete_from_page_cache])])
 247          ])
 248
 249 #
 250 # LC_CAPA_CRYPTO
 251 #
 252 AC_DEFUN([LC_CAPA_CRYPTO],
 253 [LB_LINUX_CONFIG_IM([CRYPTO],[],[
 254         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])
 255 ])
 256 LB_LINUX_CONFIG_IM([CRYPTO_HMAC],[],[
 257         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])
 258 ])
 259 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],[
 260         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])
 261 ])
 262 ])
 263
 264 #
 265 # LC_CONFIG_RMTCLIENT
 266 #
 267 dnl FIXME
 268 dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
 269 dnl FIXME
 270 AC_DEFUN([LC_CONFIG_RMTCLIENT],
 271 [LB_LINUX_CONFIG_IM([CRYPTO_AES],[],[
 272         AC_MSG_WARN([Lustre remote client require that CONFIG_CRYPTO_AES is enabled in your kernel.])
 273 ])
 274 ])
 275
 276 #
 277 # LC_CONFIG_GSS_KEYRING (default 'auto', tests for dependencies, if found, enables; only called if gss is enabled)
 278 #
 279 AC_DEFUN([LC_CONFIG_GSS_KEYRING],
 280 [AC_MSG_CHECKING([whether to enable gss keyring backend])
 281  AC_ARG_ENABLE([gss_keyring],
 282                [AC_HELP_STRING([--disable-gss-keyring],
 283                                [disable gss keyring backend])],
 284                [],[enable_gss_keyring='auto'])
 285  AC_MSG_RESULT([$enable_gss_keyring])
 286
 287  if test x$enable_gss_keyring != xno; then
 288         LB_LINUX_CONFIG_IM([KEYS],[],
 289                            [gss_keyring_conf_test='fail';
 290                             AC_MSG_WARN([GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.])])
 291
 292         AC_CHECK_LIB([keyutils], [keyctl_search], [],
 293                      [gss_keyring_conf_test='fail';
 294                       AC_MSG_WARN([libkeyutils is not found, which is required by gss keyring backend])],)
 295
 296         if test x$gss_keyring_conf_test != xfail; then
 297                 AC_DEFINE([HAVE_GSS_KEYRING], [1], [Define this if you enable gss keyring backend])
 298                 enable_gss_keyring='yes'
 299         else
 300                 if test x$enable_gss_keyring == xyes; then
 301                         AC_MSG_ERROR([Cannot enable gss_keyring. See above for details.])
 302                 else
 303                         AC_MSG_WARN([Cannot enable gss keyring.  See above for details.])
 304                 fi
 305         fi
 306  fi
 307 ])
 308
 309 AC_DEFUN([LC_CONFIG_SUNRPC],
 310 [LB_LINUX_CONFIG_IM([SUNRPC],[],
 311                     [if test x$sunrpc_required == xyes; then
 312                          AC_MSG_ERROR([kernel SUNRPC support is required by using GSS.])
 313                      fi])
 314 ])
 315
 316 #
 317 # LC_CONFIG_GSS (default 'auto' (tests for dependencies, if found, enables))
 318 #
 319 # Build gss and related tools of Lustre. Currently both kernel and user space
 320 # parts are depend on linux platform.
 321 #
 322 AC_DEFUN([LC_CONFIG_GSS],
 323 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
 324  AC_ARG_ENABLE([gss],
 325                [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
 326                [],[enable_gss='auto'])
 327  AC_MSG_RESULT([$enable_gss])
 328
 329  if test x$enable_gss != xno; then
 330         LC_CONFIG_GSS_KEYRING
 331         sunrpc_required=$enable_gss
 332         LC_CONFIG_SUNRPC
 333         sunrpc_required=no
 334
 335         LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
 336                            [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
 337         LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
 338                            [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
 339         LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
 340                            [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
 341         LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
 342                            [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
 343
 344         require_krb5=$enable_gss
 345         AC_KERBEROS_V5
 346         require_krb5=no
 347
 348         if test x$KRBDIR != x; then
 349                 AC_CHECK_LIB([gssapi], [gss_export_lucid_sec_context],
 350                              [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi";
 351                               gss_conf_test='success'],
 352                              [AC_CHECK_LIB([gssglue], [gss_export_lucid_sec_context],
 353                                            [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue";
 354                                             gss_conf_test='success'],
 355                                            [if test x$enable_gss == xyes; then
 356                                                 AC_MSG_ERROR([libgssapi or libgssglue is not found, which is required by GSS.])
 357                                             else
 358                                                 AC_MSG_WARN([libgssapi or libgssglue is not found, which is required by GSS.])
 359                                             fi])],)
 360                 AC_SUBST(GSSAPI_LIBS)
 361         fi
 362
 363         if test x$gss_conf_test == xsuccess; then
 364                 AC_DEFINE([HAVE_GSS], [1], [Define this is if you enable gss])
 365                 enable_gss='yes'
 366         fi
 367
 368  fi
 369 ])
 370
 371 # up to v2.6.27 had a 3 arg version (inode, mask, nameidata)
 372 # v2.6.27->v2.6.37 had a 2 arg version (inode, mask)
 373 # v2.6.37->v3.0 had a 3 arg version (inode, mask, nameidata)
 374 # v3.1 onward have a 2 arg version (inode, mask)
 375 AC_DEFUN([LC_INODE_PERMISION_2ARGS],
 376 [AC_MSG_CHECKING([inode_operations->permission has two args])
 377 LB_LINUX_TRY_COMPILE([
 378         #include <linux/fs.h>
 379 ],[
 380         struct inode *inode __attribute__ ((unused));
 381
 382         inode = NULL;
 383         inode->i_op->permission(NULL, 0);
 384 ],[
 385         AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
 386                   [inode_operations->permission has two args])
 387         AC_MSG_RESULT([yes])
 388 ],[
 389         AC_MSG_RESULT([no])
 390 ])
 391 ])
 392
 393 # 2.6.32 replaces 2 functions blk_queue_max_phys_segments and blk_queue_max_hw_segments by blk_queue_max_segments
 394 AC_DEFUN([LC_BLK_QUEUE_MAX_SEGMENTS],
 395 [AC_MSG_CHECKING([if blk_queue_max_segments is defined])
 396 LB_LINUX_TRY_COMPILE([
 397         #include <linux/blkdev.h>
 398 ],[
 399         blk_queue_max_segments(NULL, 0);
 400 ],[
 401         AC_MSG_RESULT(yes)
 402         AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
 403                   [blk_queue_max_segments is defined])
 404 ],[
 405         AC_MSG_RESULT(no)
 406 ])
 407 ])
 408
 409 # 2.6.34 has quotactl_ops->[sg]et_dqblk that take struct fs_disk_quota
 410 AC_DEFUN([LC_HAVE_DQUOT_FS_DISK_QUOTA],
 411 tmp_flags="$EXTRA_KCFLAGS"
 412 EXTRA_KCFLAGS="-Werror"
 413 [AC_MSG_CHECKING([if quotactl_ops.set_dqblk takes struct fs_disk_quota])
 414 LB_LINUX_TRY_COMPILE([
 415         #include <linux/fs.h>
 416         #include <linux/quota.h>
 417 ],[
 418         ((struct quotactl_ops *)0)->set_dqblk(NULL, 0, 0, (struct fs_disk_quota*)0);
 419 ],[
 420         AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1, [quotactl_ops.set_dqblk takes struct fs_disk_quota])
 421         AC_MSG_RESULT([yes])
 422 ],[
 423         AC_MSG_RESULT([no])
 424         AC_MSG_CHECKING([if quotactl_ops.set_dqblk takes struct kqid & fs_disk_quota])
 425         LB_LINUX_TRY_COMPILE([
 426                 #include <linux/fs.h>
 427                 #include <linux/quota.h>
 428         ],[
 429                 ((struct quotactl_ops *)0)->set_dqblk((struct super_block*)0, *((struct kqid*)0), (struct fs_disk_quota*)0);
 430         ],[
 431                 AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1, [quotactl_ops.set_dqblk takes struct fs_disk_quota])
 432                 AC_DEFINE(HAVE_DQUOT_KQID, 1, [quotactl_ops.set_dqblk takes struct kqid])
 433                 AC_MSG_RESULT([yes])
 434         ],[
 435                 AC_MSG_RESULT([no])
 436                 AC_MSG_CHECKING([if quotactl_ops.set_dqblk takes struct kqid&fs_disk_quota])
 437         ])
 438 ])
 439 EXTRA_KCFLAGS="$tmp_flags"
 440 ])
 441
 442 # 2.6.34 has renamed dquot options to dquot_*, check for dquot_suspend
 443 AC_DEFUN([LC_HAVE_DQUOT_SUSPEND],
 444 [AC_MSG_CHECKING([if dquot_suspend is defined])
 445 LB_LINUX_TRY_COMPILE([
 446         #include <linux/quotaops.h>
 447 ],[
 448         dquot_suspend(NULL, -1);
 449 ],[
 450         AC_DEFINE(HAVE_DQUOT_SUSPEND, 1, [dquot_suspend is defined])
 451         AC_MSG_RESULT([yes])
 452 ],[
 453         AC_MSG_RESULT([no])
 454 ])
 455 ])
 456
 457 #
 458 # LC_QUOTA64
 459 #
 460 # Check if kernel has been patched for 64-bit quota limits support.
 461 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
 462 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
 463 # that in the absence of quotaio_v1.h in the kernel headers.
 464 #
 465 AC_DEFUN([LC_QUOTA64],[
 466         AC_MSG_CHECKING([if kernel has 64-bit quota limits support])
 467 tmp_flags="$EXTRA_KCFLAGS"
 468 EXTRA_KCFLAGS="-I$LINUX/fs"
 469         LB_LINUX_TRY_COMPILE([
 470                 #include <linux/kernel.h>
 471                 #include <linux/fs.h>
 472                 #if defined(HAVE_FS_QUOTA_QUOTAIO_H)
 473                 # include <quota/quotaio_v2.h>
 474                 struct v2r1_disk_dqblk dqblk_r1;
 475                 #else
 476                 #include <linux/quota.h>
 477                 int ver = QFMT_VFS_V1;
 478                 #endif
 479         ],[],[
 480                 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
 481                 AC_MSG_RESULT([yes])
 482         ],[
 483                 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
 484                         AC_MSG_ERROR([You have got no 64-bit kernel quota support.])
 485                 ],[])
 486                 AC_MSG_RESULT([no])
 487         ])
 488 EXTRA_KCFLAGS=$tmp_flags
 489 ])
 490
 491 #
 492 # 2.6.36 fs_struct.lock use spinlock instead of rwlock.
 493 #
 494 AC_DEFUN([LC_FS_STRUCT_RWLOCK],
 495 [AC_MSG_CHECKING([if fs_struct.lock use rwlock])
 496 LB_LINUX_TRY_COMPILE([
 497         #include <asm/atomic.h>
 498         #include <linux/spinlock.h>
 499         #include <linux/fs_struct.h>
 500 ],[
 501         ((struct fs_struct *)0)->lock = (rwlock_t){ 0 };
 502 ],[
 503         AC_DEFINE(HAVE_FS_STRUCT_RWLOCK, 1,
 504                   [fs_struct.lock use rwlock])
 505         AC_MSG_RESULT([yes])
 506 ],[
 507         AC_MSG_RESULT([no])
 508 ])
 509 ])
 510
 511 #
 512 # 2.6.36 super_operations add evict_inode method. it hybird of
 513 # delete_inode & clear_inode.
 514 #
 515 AC_DEFUN([LC_SBOPS_EVICT_INODE],
 516 [AC_MSG_CHECKING([if super_operations.evict_inode exist])
 517 LB_LINUX_TRY_COMPILE([
 518         #include <linux/fs.h>
 519 ],[
 520         ((struct super_operations *)0)->evict_inode(NULL);
 521 ],[
 522         AC_DEFINE(HAVE_SBOPS_EVICT_INODE, 1,
 523                 [super_operations.evict_inode() is exist in kernel])
 524         AC_MSG_RESULT([yes])
 525 ],[
 526         AC_MSG_RESULT([no])
 527 ])
 528 ])
 529
 530 #
 531 # 2.6.35 file_operations.fsync taken 2 arguments.
 532 # 3.0.0 file_operations.fsync takes 4 arguments.
 533 #
 534 AC_DEFUN([LC_FILE_FSYNC],
 535 [AC_MSG_CHECKING([if file_operations.fsync takes 4 or 2 arguments])
 536 LB_LINUX_TRY_COMPILE([
 537         #include <linux/fs.h>
 538 ],[
 539         ((struct file_operations *)0)->fsync(NULL, 0, 0, 0);
 540 ],[
 541         AC_DEFINE(HAVE_FILE_FSYNC_4ARGS, 1,
 542                 [file_operations.fsync takes 4 arguments])
 543         AC_MSG_RESULT([yes, 4 args])
 544 ],[
 545         LB_LINUX_TRY_COMPILE([
 546                 #include <linux/fs.h>
 547         ],[
 548            ((struct file_operations *)0)->fsync(NULL, 0);
 549         ],[
 550                 AC_DEFINE(HAVE_FILE_FSYNC_2ARGS, 1,
 551                         [file_operations.fsync takes 2 arguments])
 552                 AC_MSG_RESULT([yes, 2 args])
 553         ],[
 554                 AC_MSG_RESULT([no])
 555         ])
 556 ])
 557 ])
 558
 559 #
 560 # 2.6.37 remove kernel_locked
 561 #
 562 AC_DEFUN([LC_KERNEL_LOCKED],
 563 [AC_MSG_CHECKING([if kernel_locked is defined])
 564 LB_LINUX_TRY_COMPILE([
 565         #include <linux/smp_lock.h>
 566 ],[
 567         kernel_locked();
 568 ],[
 569         AC_MSG_RESULT([yes])
 570         AC_DEFINE(HAVE_KERNEL_LOCKED, 1,
 571                 [kernel_locked is defined])
 572 ],[
 573         AC_MSG_RESULT([no])
 574 ])
 575 ])
 576
 577 #
 578 # 2.6.38 dentry_operations.d_compare() taken 7 arguments.
 579 #
 580 AC_DEFUN([LC_D_COMPARE_7ARGS],
 581 [AC_MSG_CHECKING([if d_compare taken 7 arguments])
 582 LB_LINUX_TRY_COMPILE([
 583         #include <linux/dcache.h>
 584 ],[
 585         ((struct dentry_operations*)0)->d_compare(NULL,NULL,NULL,NULL,0,NULL,NULL);
 586 ],[
 587         AC_DEFINE(HAVE_D_COMPARE_7ARGS, 1,
 588                 [d_compare need 7 arguments])
 589         AC_MSG_RESULT([yes])
 590 ],[
 591         AC_MSG_RESULT([no])
 592 ])
 593 ])
 594
 595 #
 596 # 2.6.38 dentry_operations.d_delete() defined 'const' for 1st parameter.
 597 #
 598 AC_DEFUN([LC_D_DELETE_CONST],
 599 [AC_MSG_CHECKING([if d_delete has const declare on first parameter])
 600 tmp_flags="$EXTRA_KCFLAGS"
 601 EXTRA_KCFLAGS="-Werror"
 602 LB_LINUX_TRY_COMPILE([
 603         #include <linux/dcache.h>
 604 ],[
 605         const struct dentry *d = NULL;
 606         ((struct dentry_operations*)0)->d_delete(d);
 607 ],[
 608         AC_DEFINE(HAVE_D_DELETE_CONST, const,
 609                 [d_delete first parameter declared const])
 610         AC_MSG_RESULT([yes])
 611 ],[
 612         AC_DEFINE(HAVE_D_DELETE_CONST, , [])
 613         AC_MSG_RESULT([no])
 614 ])
 615 EXTRA_KCFLAGS="$tmp_flags"
 616 ])
 617
 618 #
 619 # 2.6.38 dcache_lock removed. rcu-walk commited.
 620 #
 621 AC_DEFUN([LC_DCACHE_LOCK],
 622 [AC_MSG_CHECKING([if dcache_lock is exist])
 623 LB_LINUX_TRY_COMPILE([
 624         #include <linux/dcache.h>
 625 ],[
 626         spin_lock(&dcache_lock);
 627 ],[
 628         AC_DEFINE(HAVE_DCACHE_LOCK, 1,
 629                 [dcache_lock is exist])
 630         AC_MSG_RESULT([yes])
 631 ],[
 632         AC_MSG_RESULT([no])
 633 ])
 634 ])
 635
 636 #
 637 # 2.6.38 inode.i_rcu added.
 638 #
 639 AC_DEFUN([LC_INODE_I_RCU],
 640 [AC_MSG_CHECKING([if inode.i_rcu exists])
 641 LB_LINUX_TRY_COMPILE([
 642         #include <linux/fs.h>
 643 ],[
 644         struct inode ino;
 645         struct rcu_head rcu = {};
 646         ino.i_rcu = rcu;
 647 ],[
 648         AC_DEFINE(HAVE_INODE_I_RCU, 1,
 649                 [inode.i_rcu exists])
 650         AC_MSG_RESULT([yes])
 651 ],[
 652         AC_MSG_RESULT([no])
 653 ])
 654 ])
 655
 656 #
 657 # 2.6.38 export blkdev_get_by_dev
 658 #
 659 AC_DEFUN([LC_BLKDEV_GET_BY_DEV],
 660 [LB_CHECK_SYMBOL_EXPORT([blkdev_get_by_dev],
 661 [fs/block_dev.c],[
 662 AC_DEFINE(HAVE_BLKDEV_GET_BY_DEV, 1,
 663             [blkdev_get_by_dev is exported by the kernel])
 664 ],[
 665 ])
 666 ])
 667
 668 #
 669 # 2.6.38 export simple_setattr
 670 #
 671 AC_DEFUN([LC_EXPORT_SIMPLE_SETATTR],
 672 [LB_CHECK_SYMBOL_EXPORT([simple_setattr],
 673 [fs/libfs.c],[
 674 AC_DEFINE(HAVE_SIMPLE_SETATTR, 1,
 675             [simple_setattr is exported by the kernel])
 676 ],[
 677 ])
 678 ])
 679
 680 #
 681 # truncate callback removed since 2.6.39
 682 #
 683 AC_DEFUN([LC_IOP_TRUNCATE],
 684 [AC_MSG_CHECKING([inode_operations has .truncate member function])
 685 LB_LINUX_TRY_COMPILE([
 686         #include <linux/fs.h>
 687 ],[
 688         ((struct inode_operations *)0)->truncate(NULL);
 689 ],[
 690         AC_DEFINE(HAVE_INODEOPS_TRUNCATE, 1,
 691                   [inode_operations has .truncate member function])
 692         AC_MSG_RESULT([yes])
 693 ],[
 694         AC_MSG_RESULT([no])
 695 ])
 696 ])
 697
 698 #
 699 # 2.6.39 remove unplug_fn from request_queue.
 700 #
 701 AC_DEFUN([LC_REQUEST_QUEUE_UNPLUG_FN],
 702 [AC_MSG_CHECKING([if request_queue has unplug_fn field])
 703 LB_LINUX_TRY_COMPILE([
 704         #include <linux/blkdev.h>
 705 ],[
 706         do{ }while(sizeof(((struct request_queue *)0)->unplug_fn));
 707 ],[
 708         AC_DEFINE(HAVE_REQUEST_QUEUE_UNPLUG_FN, 1,
 709                   [request_queue has unplug_fn field])
 710         AC_MSG_RESULT([yes])
 711 ],[
 712         AC_MSG_RESULT([no])
 713 ])
 714 ])
 715
 716 #
 717 # 2.6.39 replace get_sb with mount in struct file_system_type
 718 #
 719 AC_DEFUN([LC_HAVE_FSTYPE_MOUNT],
 720 [AC_MSG_CHECKING([if file_system_type has mount field])
 721 LB_LINUX_TRY_COMPILE([
 722         #include <linux/fs.h>
 723 ],[
 724         struct file_system_type fst;
 725         void *i = (void *) fst.mount;
 726 ],[
 727         AC_DEFINE(HAVE_FSTYPE_MOUNT, 1,
 728                 [struct file_system_type has mount field])
 729         AC_MSG_RESULT([yes])
 730 ],[
 731         AC_MSG_RESULT([no])
 732 ])
 733 ])
 734
 735 #
 736 # 2.6.39 The open_by_handle_at() and name_to_handle_at() system calls were
 737 # added to Linux kernel 2.6.39.
 738 # Check if client supports these functions
 739 #
 740 AC_DEFUN([LC_HAVE_FHANDLE_SYSCALLS],
 741 [LB_LINUX_CONFIG_IM([FHANDLE],[
 742         AC_DEFINE(HAVE_FHANDLE_SYSCALLS, 1,
 743                 [kernel supports fhandles and related syscalls])
 744 ],[])
 745 ])
 746
 747 #
 748 # 3.0 dirty_inode() has a flag parameter
 749 # see kernel commit aa38572954ade525817fe88c54faebf85e5a61c0
 750 #
 751 AC_DEFUN([LC_DIRTY_INODE_WITH_FLAG],
 752 [AC_MSG_CHECKING([if dirty_inode super_operation takes flag])
 753 LB_LINUX_TRY_COMPILE([
 754         #include <linux/fs.h>
 755 ],[
 756         struct inode *inode;
 757         inode->i_sb->s_op->dirty_inode(NULL, 0);
 758 ],[
 759         AC_DEFINE(HAVE_DIRTY_INODE_HAS_FLAG, 1,
 760                   [dirty_inode super_operation takes flag])
 761         AC_MSG_RESULT([yes])
 762 ],[
 763         AC_MSG_RESULT([no])
 764 ])
 765 ])
 766
 767 #
 768 # 2.6.38 generic_permission taken 4 parameters.
 769 # in fact, it means rcu-walk aware permission bring.
 770 #
 771 # 3.1 generic_permission taken 2 parameters.
 772 # see kernel commit 2830ba7f34ebb27c4e5b8b6ef408cd6d74860890
 773 #
 774 AC_DEFUN([LC_GENERIC_PERMISSION],
 775 [AC_MSG_CHECKING([if generic_permission take 2 or 4 arguments])
 776 LB_LINUX_TRY_COMPILE([
 777         #include <linux/fs.h>
 778 ],[
 779         generic_permission(NULL, 0);
 780 ],[
 781         AC_DEFINE(HAVE_GENERIC_PERMISSION_2ARGS, 1,
 782                   [generic_permission taken 2 arguments])
 783         AC_MSG_RESULT([yes, 2 args])
 784 ],[
 785         LB_LINUX_TRY_COMPILE([
 786                 #include <linux/fs.h>
 787         ],[
 788                 generic_permission(NULL, 0, 0, NULL);
 789         ],[
 790                 AC_DEFINE(HAVE_GENERIC_PERMISSION_4ARGS, 1,
 791                           [generic_permission taken 4 arguments])
 792                 AC_MSG_RESULT([yes, 4 args])
 793         ],[
 794                 AC_MSG_RESULT([no])
 795         ])
 796 ])
 797 ])
 798
 799 #
 800 # 3.1 renames lock-manager ops(lock_manager_operations) from fl_xxx to lm_xxx
 801 # see kernel commit 8fb47a4fbf858a164e973b8ea8ef5e83e61f2e50
 802 #
 803 AC_DEFUN([LC_LM_XXX_LOCK_MANAGER_OPS],
 804 [AC_MSG_CHECKING([if lock-manager ops renamed to lm_xxx])
 805 LB_LINUX_TRY_COMPILE([
 806         #include <linux/fs.h>
 807 ],[
 808         struct lock_manager_operations lm_ops;
 809         lm_ops.lm_compare_owner = NULL;
 810 ],[
 811         AC_DEFINE(HAVE_LM_XXX_LOCK_MANAGER_OPS, 1,
 812                   [lock-manager ops renamed to lm_xxx])
 813         AC_MSG_RESULT([yes])
 814 ],[
 815         AC_MSG_RESULT([no])
 816 ])
 817 ])
 818
 819 #
 820 # 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait/
 821 #     inode_dio_done instead.
 822 # see kernel commit bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3
 823 #
 824 AC_DEFUN([LC_INODE_DIO_WAIT],
 825 [AC_MSG_CHECKING([if inode->i_alloc_sem is killed and use inode_dio_wait/done.])
 826 LB_LINUX_TRY_COMPILE([
 827         #include <linux/fs.h>
 828 ],[
 829         inode_dio_wait((struct inode *)0);
 830         inode_dio_done((struct inode *)0);
 831 ],[
 832         AC_DEFINE(HAVE_INODE_DIO_WAIT, 1,
 833                   [inode->i_alloc_sem is killed and use inode_dio_wait/done])
 834         AC_MSG_RESULT([yes])
 835 ],[
 836         AC_MSG_RESULT([no])
 837 ])
 838 ])
 839
 840 #
 841 # 3.1 adds get_acl method to inode_operations to read ACL from disk.
 842 # see kernel commit 4e34e719e457f2e031297175410fc0bd4016a085
 843 #
 844 AC_DEFUN([LC_IOP_GET_ACL],
 845 [AC_MSG_CHECKING([inode_operations has .get_acl member function])
 846 LB_LINUX_TRY_COMPILE([
 847         #include <linux/fs.h>
 848 ],[
 849         struct inode_operations iop;
 850         iop.get_acl = NULL;
 851 ],[
 852         AC_DEFINE(HAVE_IOP_GET_ACL, 1,
 853                   [inode_operations has .get_acl member function])
 854         AC_MSG_RESULT([yes])
 855 ],[
 856         AC_MSG_RESULT([no])
 857 ])
 858 ])
 859
 860 #
 861 # 3.1 introduced generic_file_llseek_size()
 862 #
 863 AC_DEFUN([LC_FILE_LLSEEK_SIZE],
 864         [LB_CHECK_SYMBOL_EXPORT([generic_file_llseek_size],
 865         [fs/read_write.c],
 866         [AC_DEFINE(HAVE_FILE_LLSEEK_SIZE, 1,
 867                    [generic_file_llseek_size is exported by the kernel])])
 868 ])
 869
 870 #
 871 # 3.2 request_queue.make_request_fn defined as function returns with void
 872 # see kernel commit 5a7bbad27a410350e64a2d7f5ec18fc73836c14f
 873 #
 874 AC_DEFUN([LC_HAVE_VOID_MAKE_REQUEST_FN],
 875 [AC_MSG_CHECKING([if request_queue.make_request_fn returns void but not int])
 876 LB_LINUX_TRY_COMPILE([
 877         #include <linux/blkdev.h>
 878 ],[
 879         int ret;
 880         make_request_fn         *mrf;
 881         ret = mrf(NULL, NULL);
 882 ],[
 883         AC_MSG_RESULT([no])
 884 ],[
 885         AC_DEFINE(HAVE_VOID_MAKE_REQUEST_FN, 1,
 886                   [request_queue.make_request_fn returns void but not int])
 887         AC_MSG_RESULT([yes])
 888 ])
 889 ])
 890
 891 #
 892 # 3.2 protects inode->i_nlink from direct modification
 893 # see kernel commit a78ef704a8dd430225955f0709b22d4a6ba21deb
 894 # at the same time adds set_nlink(), so checks set_nlink() for it.
 895 #
 896 AC_DEFUN([LC_HAVE_PROTECT_I_NLINK],
 897 [AC_MSG_CHECKING([if inode->i_nlink is protected from direct modification])
 898 LB_LINUX_TRY_COMPILE([
 899         #include <linux/fs.h>
 900 ],[
 901         struct inode i;
 902         set_nlink(&i, 1);
 903 ],[
 904         AC_DEFINE(HAVE_PROTECT_I_NLINK, 1,
 905                   [inode->i_nlink is protected from direct modification])
 906         AC_MSG_RESULT([yes])
 907 ],[
 908         AC_MSG_RESULT([no])
 909 ])
 910 ])
 911
 912 #
 913 # 3.3 introduces migrate_mode.h and migratepage has 4 args
 914 #
 915 AC_DEFUN([LC_HAVE_MIGRATE_HEADER],
 916 [LB_CHECK_FILE([$LINUX/include/linux/migrate.h],[
 917                 AC_DEFINE(HAVE_MIGRATE_H, 1,
 918                 [kernel has include/linux/migrate.h])
 919 ],[LB_CHECK_FILE([$LINUX/include/linux/migrate_mode.h],[
 920                 AC_DEFINE(HAVE_MIGRATE_MODE_H, 1,
 921                         [kernel has include/linux/migrate_mode.h])
 922 ],[
 923         AC_MSG_RESULT([no])
 924 ])
 925 ])
 926 ])
 927
 928 AC_DEFUN([LC_MIGRATEPAGE_4ARGS],
 929 [AC_MSG_CHECKING([if address_space_operations.migratepage has 4 args])
 930 LB_LINUX_TRY_COMPILE([
 931         #include <linux/fs.h>
 932 #ifdef HAVE_MIGRATE_H
 933         #include <linux/migrate.h>
 934 #elif defined(HAVE_MIGRATE_MODE_H)
 935         #include <linux/migrate_mode.h>
 936 #endif
 937 ],[
 938         struct address_space_operations aops;
 939
 940         aops.migratepage(NULL, NULL, NULL, MIGRATE_ASYNC);
 941 ],[
 942         AC_DEFINE(HAVE_MIGRATEPAGE_4ARGS, 1,
 943                 [address_space_operations.migratepage has 4 args])
 944         AC_MSG_RESULT([yes])
 945 ],[
 946         AC_MSG_RESULT([no])
 947 ])
 948 ])
 949
 950 #
 951 # 3.3 switchs super_operations to use dentry as parameter (but not vfsmount)
 952 # see kernel commit 34c80b1d93e6e20ca9dea0baf583a5b5510d92d4
 953 #
 954 AC_DEFUN([LC_SUPEROPS_USE_DENTRY],
 955 [AC_MSG_CHECKING([if super_operations use dentry as parameter])
 956 tmp_flags="$EXTRA_KCFLAGS"
 957 EXTRA_KCFLAGS="-Werror"
 958 LB_LINUX_TRY_COMPILE([
 959         #include <linux/fs.h>
 960         int show_options(struct seq_file *seq, struct dentry *root){
 961                 return 0;
 962         }
 963 ],[
 964         struct super_operations ops;
 965         ops.show_options = show_options;
 966 ],[
 967         AC_DEFINE(HAVE_SUPEROPS_USE_DENTRY, 1,
 968                   [super_operations use dentry as parameter])
 969         AC_MSG_RESULT([yes])
 970 ],[
 971         AC_MSG_RESULT([no])
 972 ])
 973 EXTRA_KCFLAGS="$tmp_flags"
 974 ])
 975
 976 #
 977 # 3.3 switchs inode_operations to use umode_t as parameter (but not int)
 978 # see kernel commit 1a67aafb5f72a436ca044293309fa7e6351d6a35
 979 #
 980 AC_DEFUN([LC_INODEOPS_USE_UMODE_T],
 981 [AC_MSG_CHECKING([if inode_operations use umode_t as parameter])
 982 tmp_flags="$EXTRA_KCFLAGS"
 983 EXTRA_KCFLAGS="-Werror"
 984 LB_LINUX_TRY_COMPILE([
 985         #include <linux/fs.h>
 986         #include <linux/types.h>
 987         int my_mknod(struct inode *dir, struct dentry *dchild,
 988                      umode_t mode, dev_t dev)
 989         {
 990                 return 0;
 991         }
 992 ],[
 993         struct inode_operations ops;
 994         ops.mknod = my_mknod;
 995 ],[
 996         AC_DEFINE(HAVE_INODEOPS_USE_UMODE_T, 1,
 997                   [inode_operations use umode_t as parameter])
 998         AC_MSG_RESULT([yes])
 999 ],[
1000         AC_MSG_RESULT([no])
1001 ])
1002 EXTRA_KCFLAGS="$tmp_flags"
1003 ])
1004
1005 # 3.4 kmap_atomic removes second argument
1006 # see kernel commit 1ec9c5ddc17aa398f05646abfcbaf315b544e62f
1007 #
1008 AC_DEFUN([LC_KMAP_ATOMIC_HAS_1ARG],
1009 [AC_MSG_CHECKING([if kmap_atomic has only 1 argument])
1010 LB_LINUX_TRY_COMPILE([
1011         #include <linux/highmem.h>
1012 ],[
1013         kmap_atomic(NULL);
1014 ],[
1015         AC_DEFINE(HAVE_KMAP_ATOMIC_HAS_1ARG, 1,
1016                   [have kmap_atomic has only 1 argument])
1017         AC_MSG_RESULT([yes])
1018 ],[
1019         AC_MSG_RESULT([no])
1020 ])
1021 ])
1022
1023 #
1024 # 3.4 converts d_alloc_root to d_make_root
1025 # see kernel commit 32991ab305ace7017c62f8eecbe5eb36dc32e13b
1026 #
1027 AC_DEFUN([LC_HAVE_D_MAKE_ROOT],
1028 [AC_MSG_CHECKING([if have d_make_root])
1029 LB_LINUX_TRY_COMPILE([
1030         #include <linux/fs.h>
1031 ],[
1032         d_make_root((struct inode *)NULL);
1033 ],[
1034         AC_DEFINE(HAVE_D_MAKE_ROOT, 1,
1035                   [have d_make_root])
1036         AC_MSG_RESULT([yes])
1037 ],[
1038         AC_MSG_RESULT([no])
1039 ])
1040 ])
1041
1042 #
1043 # 3.4 cache_register/cache_unregister are removed
1044 # see kernel commit 2c5f846747526e2b83c5f1b8e69016be0e2e87c0
1045 # Note, since 2.6.37 cache_register_net/cache_unregister_net
1046 # are defined, but not exported.
1047 # 3.3 cache_register_net/cache_unregister_net are
1048 # exported and replacing cache_register/cache_unregister in 3.4
1049 #
1050 AC_DEFUN([LC_HAVE_CACHE_REGISTER],
1051 [AC_MSG_CHECKING([if have cache_register])
1052 LB_LINUX_TRY_COMPILE([
1053         #include <linux/sunrpc/cache.h>
1054 ],[
1055         cache_register(NULL);
1056 ],[
1057         AC_DEFINE(HAVE_CACHE_REGISTER, 1,
1058                   [have cache_register])
1059         AC_MSG_RESULT([yes])
1060 ],[
1061         AC_MSG_RESULT([no])
1062 ])
1063 ])
1064
1065 #
1066 # 3.5 renames end_writeback() back to clear_inode()...
1067 # see kernel commit dbd5768f87ff6fb0a4fe09c4d7b6c4a24de99430
1068 #
1069 AC_DEFUN([LC_HAVE_CLEAR_INODE],
1070 [AC_MSG_CHECKING([if have clear_inode])
1071 LB_LINUX_TRY_COMPILE([
1072         #include <linux/fs.h>
1073 ],[
1074         clear_inode((struct inode *)NULL);
1075 ],[
1076         AC_DEFINE(HAVE_CLEAR_INODE, 1,
1077                   [have clear_inode])
1078         AC_MSG_RESULT([yes])
1079 ],[
1080         AC_MSG_RESULT([no])
1081 ])
1082 ])
1083
1084 #
1085 # 3.5 encode_fh has parent inode passed in directly
1086 # see kernel commit b0b0382b
1087 #
1088 AC_DEFUN([LC_HAVE_ENCODE_FH_PARENT],
1089 [AC_MSG_CHECKING([if encode_fh have parent inode as parameter])
1090 tmp_flags="$EXTRA_KCFLAGS"
1091 EXTRA_KCFLAGS="-Werror"
1092 LB_LINUX_TRY_COMPILE([
1093         #include <linux/exportfs.h>
1094         #include <linux/fs.h>
1095         #include <linux/types.h>
1096         int ll_encode_fh(struct inode *i, __u32 *a, int *b, struct inode *p)
1097         {
1098                 return 0;
1099         }
1100 ],[
1101         struct export_operations exp_op;
1102         exp_op.encode_fh = ll_encode_fh;
1103 ],[
1104         AC_DEFINE(HAVE_ENCODE_FH_PARENT, 1,
1105                   [have parent inode as parameter])
1106         AC_MSG_RESULT([yes])
1107 ],[
1108         AC_MSG_RESULT([no])
1109 ])
1110 EXTRA_KCFLAGS="$tmp_flags"
1111 ])
1112
1113 # 3.5 has generic_file_llseek_size with 5 args
1114 AC_DEFUN([LC_FILE_LLSEEK_SIZE_5ARG],
1115 [AC_MSG_CHECKING([if kernel has generic_file_llseek_size with 5 args])
1116 LB_LINUX_TRY_COMPILE([
1117         #include <linux/fs.h>
1118 ],[
1119         generic_file_llseek_size(NULL, 0, 0, 0, 0);
1120 ], [
1121         AC_MSG_RESULT([yes])
1122         AC_DEFINE(HAVE_FILE_LLSEEK_SIZE_5ARGS, 1,
1123                 [kernel has generic_file_llseek_size with 5 args])
1124 ],[
1125         AC_MSG_RESULT([no])
1126 ])
1127 ])
1128
1129 #
1130 # 3.6 switch i_dentry/d_alias from list to hlist
1131 #
1132 AC_DEFUN([LC_HAVE_DENTRY_D_ALIAS_HLIST],
1133 [AC_MSG_CHECKING([if i_dentry/d_alias uses hlist])
1134 tmp_flags="$EXTRA_KCFLAGS"
1135 EXTRA_KCFLAGS="-Werror"
1136 LB_LINUX_TRY_COMPILE([
1137         #include <linux/fs.h>
1138         #include <linux/list.h>
1139 ],[
1140         struct inode inode;
1141         struct dentry dentry;
1142         struct hlist_head head;
1143         struct hlist_node node;
1144         inode.i_dentry = head;
1145         dentry.d_alias = node;
1146 ],[
1147         AC_DEFINE(HAVE_DENTRY_D_ALIAS_HLIST, 1,
1148                   [have i_dentry/d_alias uses hlist])
1149         AC_MSG_RESULT([yes])
1150 ],[
1151         AC_MSG_RESULT([no])
1152 ])
1153 EXTRA_KCFLAGS="$tmp_flags"
1154 ])
1155
1156 #
1157 # 3.6 dentry_open uses struct path as first argument
1158 # see kernel commit 765927b2
1159 #
1160 AC_DEFUN([LC_DENTRY_OPEN_USE_PATH],
1161 [AC_MSG_CHECKING([if dentry_open uses struct path as first argument])
1162 tmp_flags="$EXTRA_KCFLAGS"
1163 EXTRA_KCFLAGS="-Werror"
1164 LB_LINUX_TRY_COMPILE([
1165         #include <linux/fs.h>
1166         #include <linux/path.h>
1167 ],[
1168         struct path path;
1169         dentry_open(&path, 0, NULL);
1170 ],[
1171         AC_DEFINE(HAVE_DENTRY_OPEN_USE_PATH, 1,
1172                   [dentry_open uses struct path as first argument])
1173         AC_MSG_RESULT([yes])
1174 ],[
1175         AC_MSG_RESULT([no])
1176 ])
1177 EXTRA_KCFLAGS="$tmp_flags"
1178 ])
1179
1180 #
1181 # 3.6 vfs adds iop->atomic_open
1182 #
1183 AC_DEFUN([LC_HAVE_IOP_ATOMIC_OPEN],
1184 [AC_MSG_CHECKING([if iop has atomic_open])
1185 LB_LINUX_TRY_COMPILE([
1186         #include <linux/fs.h>
1187 ],[
1188         struct inode_operations iop;
1189         iop.atomic_open = NULL;
1190 ],[
1191         AC_DEFINE(HAVE_IOP_ATOMIC_OPEN, 1,
1192                   [have iop atomic_open])
1193         AC_MSG_RESULT([yes])
1194 ],[
1195         AC_MSG_RESULT([no])
1196 ])
1197 ])
1198
1199 #
1200 # 3.7 posix_acl_{to,from}_xattr take struct user_namespace
1201 #
1202 AC_DEFUN([LC_HAVE_POSIXACL_USER_NS],
1203 [AC_MSG_CHECKING([if posix_acl_to_xattr takes struct user_namespace])
1204 LB_LINUX_TRY_COMPILE([
1205         #include <linux/fs.h>
1206         #include <linux/posix_acl_xattr.h>
1207 ],[
1208         posix_acl_to_xattr((struct user_namespace *)NULL, NULL, NULL, 0);
1209 ],[
1210         AC_DEFINE(HAVE_POSIXACL_USER_NS, 1,
1211                   [posix_acl_to_xattr takes struct user_namespace])
1212         AC_MSG_RESULT([yes])
1213 ],[
1214         AC_MSG_RESULT([no])
1215 ])
1216 ])
1217
1218 #
1219 # 3.8 struct file has new member f_inode
1220 #
1221 AC_DEFUN([LC_HAVE_FILE_F_INODE],
1222 [AC_MSG_CHECKING([if struct file has memeber f_inode])
1223 LB_LINUX_TRY_COMPILE([
1224         #include <linux/fs.h>
1225 ],[
1226         ((struct file *)0)->f_inode = NULL;
1227 ],[
1228         AC_DEFINE(HAVE_FILE_F_INODE, 1,
1229                   [struct file has memeber f_inode])
1230         AC_MSG_RESULT([yes])
1231 ],[
1232         AC_MSG_RESULT([no])
1233 ])
1234 ])
1235
1236 AC_DEFUN([LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS],
1237 [AC_MSG_CHECKING([if sunrpc_cache_pipe_upcall takes 3 args])
1238 LB_LINUX_TRY_COMPILE([
1239         #include <linux/sunrpc/cache.h>
1240 ],[
1241         sunrpc_cache_pipe_upcall(NULL, NULL, NULL);
1242 ],[
1243         AC_DEFINE(HAVE_SUNRPC_UPCALL_HAS_3ARGS, 1,
1244                 [sunrpc_cache_pipe_upcall takes 3 args])
1245         AC_MSG_RESULT([yes])
1246 ],[
1247         AC_MSG_RESULT([no])
1248 ])
1249 ])
1250
1251 #
1252 # 3.9 uses hlist_for_each_entry with 3 args
1253 # b67bfe0d42cac56c512dd5da4b1b347a23f4b70a
1254 #
1255 AC_DEFUN([LC_HAVE_HLIST_FOR_EACH_3ARG],
1256 [AC_MSG_CHECKING([if hlist_for_each_entry has 3 args])
1257 LB_LINUX_TRY_COMPILE([
1258         #include <linux/list.h>
1259         #include <linux/fs.h>
1260 ],[
1261         struct inode *inode;
1262         struct dentry *dentry;
1263         hlist_for_each_entry(dentry, &inode->i_dentry, d_alias) {
1264                 continue;
1265         }
1266 ],[
1267         AC_DEFINE(HAVE_HLIST_FOR_EACH_3ARG, 1, [3 args])
1268         AC_MSG_RESULT([yes])
1269 ],[
1270         AC_MSG_RESULT([no])
1271 ])
1272 ])
1273
1274 #
1275 # 3.10+ only supports procfs seq_files handling
1276 #
1277 AC_DEFUN([LC_HAVE_ONLY_PROCFS_SEQ],
1278 [AC_MSG_CHECKING([if procfs only supports using seq_files])
1279 LB_LINUX_TRY_COMPILE([
1280         #include <linux/proc_fs.h>
1281 ],[
1282         ((struct proc_dir_entry *)0)->write_proc(NULL, NULL, 0, NULL);
1283 ],[
1284         AC_MSG_RESULT([no])
1285 ],[
1286         AC_DEFINE(HAVE_ONLY_PROCFS_SEQ, 1, [only seq_files supported])
1287         AC_MSG_RESULT([yes])
1288 ])
1289 ])
1290
1291 # 3.10 release for block device doesn't return int
1292 AC_DEFUN([LC_BLKDEV_RELEASE_RETURN_INT],
1293 [AC_MSG_CHECKING([if block_device_operations release returns int])
1294 LB_LINUX_TRY_COMPILE([
1295         #include <linux/blkdev.h>
1296 ],[
1297         struct block_device_operations fops;
1298         int i __attribute__ ((unused));
1299
1300         i = fops.release(NULL,0);
1301 ],[
1302         AC_MSG_RESULT([yes])
1303         AC_DEFINE(HAVE_BLKDEV_RELEASE_RETURN_INT, 1,
1304                   [block device release returns int])
1305 ],[
1306         AC_MSG_RESULT([no])
1307 ])
1308 ])
1309
1310 #
1311 # 3.11 invalidatepage requires the length of the range to invalidate
1312 #
1313 AC_DEFUN([LC_INVALIDATE_RANGE],
1314 [AC_MSG_CHECKING([if address_space_operations.invalidatepage requires 3 arguments])
1315 LB_LINUX_TRY_COMPILE([
1316         #include <linux/fs.h>
1317 ],[
1318         struct address_space_operations a_ops;
1319
1320         a_ops.invalidatepage(NULL,0,0);
1321 ],[
1322         AC_DEFINE(HAVE_INVALIDATE_RANGE, 1, [address_space_operations.invalidatepage needs 3 arguments])
1323         AC_MSG_RESULT([yes])
1324 ],[
1325         AC_MSG_RESULT([no])
1326 ])
1327 ])
1328
1329 #
1330 # 3.11 readdir now takes the new struct dir_context
1331 #
1332 AC_DEFUN([LC_HAVE_DIR_CONTEXT],
1333 [AC_MSG_CHECKING([if dir_context exist])
1334 LB_LINUX_TRY_COMPILE([
1335         #include <linux/fs.h>
1336 ],[
1337         struct dir_context ctx;
1338
1339         ctx.pos = 0;
1340 ],[
1341         AC_DEFINE(HAVE_DIR_CONTEXT, 1, [dir_context exist])
1342         AC_MSG_RESULT([yes])
1343 ],[
1344         AC_MSG_RESULT([no])
1345 ])
1346 ])
1347
1348 #
1349 # 3.11 dentry_operations.d_compare() taken 5 arguments.
1350 #
1351 AC_DEFUN([LC_D_COMPARE_5ARGS],
1352 [AC_MSG_CHECKING([if d_compare taken 5 arguments])
1353 LB_LINUX_TRY_COMPILE([
1354         #include <linux/dcache.h>
1355 ],[
1356         ((struct dentry_operations*)0)->d_compare(NULL,NULL,0,NULL,NULL);
1357 ],[
1358         AC_DEFINE(HAVE_D_COMPARE_5ARGS, 1,
1359                 [d_compare need 5 arguments])
1360         AC_MSG_RESULT([yes])
1361 ],[
1362         AC_MSG_RESULT([no])
1363 ])
1364 ])
1365
1366 #
1367 # 3.11 need to access d_count to get dentry reference count
1368 #
1369 AC_DEFUN([LC_HAVE_DCOUNT],
1370 [AC_MSG_CHECKING([if d_count exist])
1371 LB_LINUX_TRY_COMPILE([
1372         #include <linux/dcache.h>
1373 ],[
1374         struct dentry de;
1375
1376         d_count(&de);
1377 ],[
1378         AC_DEFINE(HAVE_D_COUNT, 1, [d_count exist])
1379         AC_MSG_RESULT([yes])
1380 ],[
1381         AC_MSG_RESULT([no])
1382 ])
1383 ])
1384
1385 #
1386 # 3.12 truncate_pagecache without oldsize parameter
1387 #
1388 AC_DEFUN([LC_OLDSIZE_TRUNCATE_PAGECACHE],
1389 [AC_MSG_CHECKING([if truncate_pagecache with old_size parameter])
1390 LB_LINUX_TRY_COMPILE([
1391         #include <linux/mm.h>
1392 ],[
1393         truncate_pagecache(NULL, 0, 0);
1394 ],[
1395         AC_DEFINE(HAVE_OLDSIZE_TRUNCATE_PAGECACHE, 1, [with oldsize])
1396         AC_MSG_RESULT([yes])
1397 ],[
1398         AC_MSG_RESULT([no])
1399 ])
1400 ])
1401
1402 #
1403 # 3.12 ki_left removed from struct kiocb
1404 #
1405 AC_DEFUN([LC_KIOCB_KI_LEFT],
1406 [AC_MSG_CHECKING([if struct kiocb with ki_left member])
1407 LB_LINUX_TRY_COMPILE([
1408         #include <linux/aio.h>
1409 ],[
1410         ((struct kiocb*)0)->ki_left = 0;
1411 ],[
1412         AC_DEFINE(HAVE_KIOCB_KI_LEFT, 1, [ki_left exist])
1413         AC_MSG_RESULT([yes])
1414 ],[
1415         AC_MSG_RESULT([no])
1416 ])
1417 ])
1418
1419 #
1420 # LC_PROG_LINUX
1421 #
1422 # Lustre linux kernel checks
1423 #
1424 AC_DEFUN([LC_PROG_LINUX],
1425          [
1426          LC_CONFIG_PINGER
1427          LC_CONFIG_CHECKSUM
1428          LC_CONFIG_LIBLUSTRE_RECOVERY
1429          LC_CONFIG_HEALTH_CHECK_WRITE
1430          LC_CONFIG_LRU_RESIZE
1431          LC_LLITE_LLOOP_MODULE
1432
1433          LC_GLIBC_SUPPORT_FHANDLES
1434          LC_CAPA_CRYPTO
1435          LC_CONFIG_RMTCLIENT
1436          LC_CONFIG_GSS
1437
1438          # 2.6.32
1439          LC_BLK_QUEUE_MAX_SEGMENTS
1440
1441          # 2.6.34
1442          LC_HAVE_DQUOT_FS_DISK_QUOTA
1443          LC_HAVE_DQUOT_SUSPEND
1444
1445          # 2.6.35, 3.0.0
1446          LC_FILE_FSYNC
1447          LC_EXPORT_SIMPLE_SETATTR
1448          LC_EXPORT_TRUNCATE_COMPLETE_PAGE
1449
1450          # 2.6.36
1451          LC_FS_STRUCT_RWLOCK
1452          LC_SBOPS_EVICT_INODE
1453
1454          # 2.6.37
1455          LC_KERNEL_LOCKED
1456
1457          # 2.6.38
1458          LC_BLKDEV_GET_BY_DEV
1459          LC_GENERIC_PERMISSION
1460          LC_DCACHE_LOCK
1461          LC_INODE_I_RCU
1462          LC_D_COMPARE_7ARGS
1463          LC_D_DELETE_CONST
1464
1465          # 2.6.39
1466          LC_REQUEST_QUEUE_UNPLUG_FN
1467          LC_HAVE_FHANDLE_SYSCALLS
1468          LC_HAVE_FSTYPE_MOUNT
1469          LC_IOP_TRUNCATE
1470
1471          # 3.0
1472          LC_DIRTY_INODE_WITH_FLAG
1473
1474          # 3.1
1475          LC_LM_XXX_LOCK_MANAGER_OPS
1476          LC_INODE_DIO_WAIT
1477          LC_IOP_GET_ACL
1478          LC_FILE_LLSEEK_SIZE
1479          LC_INODE_PERMISION_2ARGS
1480
1481          # 3.2
1482          LC_HAVE_VOID_MAKE_REQUEST_FN
1483          LC_HAVE_PROTECT_I_NLINK
1484
1485          # 3.3
1486          LC_HAVE_MIGRATE_HEADER
1487          LC_MIGRATEPAGE_4ARGS
1488          LC_SUPEROPS_USE_DENTRY
1489          LC_INODEOPS_USE_UMODE_T
1490          LC_HAVE_CACHE_REGISTER
1491
1492          # 3.4
1493          LC_HAVE_D_MAKE_ROOT
1494          LC_KMAP_ATOMIC_HAS_1ARG
1495
1496          # 3.5
1497          LC_HAVE_CLEAR_INODE
1498          LC_HAVE_ENCODE_FH_PARENT
1499          LC_FILE_LLSEEK_SIZE_5ARG
1500
1501          # 3.6
1502          LC_HAVE_DENTRY_D_ALIAS_HLIST
1503          LC_DENTRY_OPEN_USE_PATH
1504          LC_HAVE_IOP_ATOMIC_OPEN
1505
1506          # 3.7
1507          LC_HAVE_POSIXACL_USER_NS
1508
1509          # 3.8
1510          LC_HAVE_FILE_F_INODE
1511          LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
1512
1513          # 3.9
1514          LC_HAVE_HLIST_FOR_EACH_3ARG
1515
1516          # 3.10
1517          LC_HAVE_ONLY_PROCFS_SEQ
1518          LC_BLKDEV_RELEASE_RETURN_INT
1519
1520          # 3.11
1521          LC_INVALIDATE_RANGE
1522          LC_HAVE_DIR_CONTEXT
1523          LC_D_COMPARE_5ARGS
1524          LC_HAVE_DCOUNT
1525
1526          # 3.12
1527          LC_OLDSIZE_TRUNCATE_PAGECACHE
1528          LC_KIOCB_KI_LEFT
1529
1530          #
1531          if test x$enable_server != xno ; then
1532                 LC_FUNC_DEV_SET_RDONLY
1533                 LC_STACK_SIZE
1534                 LC_QUOTA64
1535                 LC_QUOTA_CONFIG
1536          fi
1537 ])
1538
1539 #
1540 # LC_CONFIG_CLIENT
1541 #
1542 # Check whether to build the client side of Lustre
1543 #
1544 AC_DEFUN([LC_CONFIG_CLIENT],
1545 [AC_MSG_CHECKING([whether to build Lustre client support])
1546 AC_ARG_ENABLE([client],
1547         AC_HELP_STRING([--disable-client],
1548                         [disable Lustre client support]),
1549         [],[enable_client='yes'])
1550 AC_MSG_RESULT([$enable_client])
1551 ])
1552
1553 #
1554 # LC_CONFIG_LIBLUSTRE
1555 #
1556 # whether to build liblustre
1557 #
1558 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
1559 [AC_MSG_CHECKING([whether to build Lustre library])
1560 AC_ARG_ENABLE([liblustre],
1561         AC_HELP_STRING([--disable-liblustre],
1562                         [disable building of Lustre library]),
1563         [],[enable_liblustre=$with_sysio])
1564 AC_MSG_RESULT([$enable_liblustre])
1565 # only build sysio if liblustre is built
1566 with_sysio="$enable_liblustre"
1567
1568 AC_MSG_CHECKING([whether to build liblustre tests])
1569 AC_ARG_ENABLE([liblustre-tests],
1570         AC_HELP_STRING([--enable-liblustre-tests],
1571                         [enable liblustre tests, if --disable-tests is used]),
1572         [],[enable_liblustre_tests=$enable_tests])
1573 if test x$enable_liblustre != xyes ; then
1574    enable_liblustre_tests='no'
1575 fi
1576 AC_MSG_RESULT([$enable_liblustre_tests])
1577
1578 AC_MSG_CHECKING([whether to enable liblustre acl])
1579 AC_ARG_ENABLE([liblustre-acl],
1580         AC_HELP_STRING([--disable-liblustre-acl],
1581                         [disable ACL support for liblustre]),
1582         [],[enable_liblustre_acl=yes])
1583 AC_MSG_RESULT([$enable_liblustre_acl])
1584 if test x$enable_liblustre_acl = xyes ; then
1585   AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
1586 fi
1587
1588 #
1589 # --enable-mpitest
1590 #
1591 AC_ARG_ENABLE(mpitests,
1592         AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
1593                            [include mpi tests]),
1594         [
1595          enable_mpitests=yes
1596          case $enableval in
1597          yes)
1598                 MPICC_WRAPPER=mpicc
1599                 ;;
1600          no)
1601                 enable_mpitests=no
1602                 ;;
1603          *)
1604                 MPICC_WRAPPER=$enableval
1605                  ;;
1606          esac
1607         ],
1608         [
1609         MPICC_WRAPPER=mpicc
1610         enable_mpitests=yes
1611         ]
1612 )
1613
1614 if test x$enable_mpitests != xno; then
1615         AC_MSG_CHECKING([whether mpitests can be built])
1616         oldcc=$CC
1617         CC=$MPICC_WRAPPER
1618         AC_LINK_IFELSE(
1619             [AC_LANG_PROGRAM([[
1620                     #include <mpi.h>
1621                 ]],[[
1622                     int flag;
1623                     MPI_Initialized(&flag);
1624                 ]])],
1625             [
1626                     AC_MSG_RESULT([yes])
1627             ],[
1628                     AC_MSG_RESULT([no])
1629                     enable_mpitests=no
1630         ])
1631         CC=$oldcc
1632 fi
1633 AC_SUBST(MPICC_WRAPPER)
1634
1635 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
1636 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
1637
1638 LC_CONFIG_PINGER
1639 LC_CONFIG_LIBLUSTRE_RECOVERY
1640 ])
1641
1642 #
1643 # LC_CONFIG_QUOTA
1644 #
1645 # whether to enable quota support global control
1646 #
1647 AC_DEFUN([LC_CONFIG_QUOTA],
1648 [AC_ARG_ENABLE([quota],
1649         AC_HELP_STRING([--enable-quota],
1650                         [enable quota support]),
1651         [],[enable_quota='yes'])
1652 ])
1653
1654 AC_DEFUN([LC_QUOTA],
1655 [#check global
1656 LC_CONFIG_QUOTA
1657 #check for utils
1658 if test x$enable_quota != xno -a x$enable_utils != xno; then
1659 AC_CHECK_HEADER(sys/quota.h,
1660                 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
1661                 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
1662 fi
1663 ])
1664
1665 #
1666 # LC_CONFIG_SPLIT
1667 #
1668 # whether to enable split support
1669 #
1670 AC_DEFUN([LC_CONFIG_SPLIT],
1671 [AC_MSG_CHECKING([whether to enable split support])
1672 AC_ARG_ENABLE([split],
1673         AC_HELP_STRING([--enable-split],
1674                         [enable split support]),
1675         [],[enable_split='no'])
1676 AC_MSG_RESULT([$enable_split])
1677 if test x$enable_split != xno; then
1678    AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
1679 fi
1680 ])
1681
1682 #
1683 # LC_CONFIG_NODEMAP_PROC_DEBUG
1684 #
1685 # enable nodemap proc file debugging
1686 #
1687 AC_DEFUN([LC_NODEMAP_PROC_DEBUG],
1688 [AC_MSG_CHECKING([whether to enable nodemap proc debug])
1689 AC_ARG_ENABLE([nodemap_proc_debug],
1690         AC_HELP_STRING([--enable-nodemap-proc-debug],
1691                         [enable nodemap proc debug]),
1692         [],[enable_nodemap_proc_debug='no'])
1693 AC_MSG_RESULT([$enable_nodemap_proc_debug])
1694 if test x$enable_nodemap_proc_debug != xno; then
1695    AC_DEFINE(NODEMAP_PROC_DEBUG, 1, [enable nodemap proc debug support])
1696 fi
1697 ])
1698
1699 #
1700 # LC_LLITE_LLOOP_MODULE
1701 # lloop_llite.ko does not currently work with page sizes
1702 # of 64k or larger.
1703 #
1704 AC_DEFUN([LC_LLITE_LLOOP_MODULE],
1705 [AC_MSG_CHECKING([whether to enable llite_lloop module])
1706 LB_LINUX_TRY_COMPILE([
1707         #include <asm/page.h>
1708 ],[
1709         #if PAGE_SIZE >= 65536
1710         #error "PAGE_SIZE >= 65536"
1711         #endif
1712 ],[
1713         enable_llite_lloop_module='yes'
1714         AC_MSG_RESULT([yes])
1715 ],[
1716         enable_llite_lloop_module='no'
1717         AC_MSG_RESULT([no])
1718 ])
1719 ])
1720
1721 #
1722 # LC_OSD_ADDON
1723 #
1724 # configure support for optional OSD implementation
1725 #
1726 AC_DEFUN([LC_OSD_ADDON],
1727 [AC_MSG_CHECKING([for osd])
1728 AC_ARG_WITH([osd],
1729         AC_HELP_STRING([--with-osd=path],
1730                        [set path to optional osd]),
1731         [
1732                 case $with_osd in
1733                         no)     ENABLEOSDADDON=0
1734                                 ;;
1735                         *)      OSDADDON="${with_osd}"
1736                                 ENABLEOSDADDON=1
1737                                 ;;
1738                 esac
1739         ], [
1740                 ENABLEOSDADDON=0
1741         ])
1742 if test $ENABLEOSDADDON -eq 0; then
1743         AC_MSG_RESULT([no])
1744         OSDADDON=
1745 else
1746         OSDMODNAME=`basename $OSDADDON`
1747         if test -e $LUSTRE/$OSDMODNAME; then
1748                 AC_MSG_RESULT([can't link])
1749                 OSDADDON=
1750         elif ln -s $OSDADDON $LUSTRE/$OSDMODNAME; then
1751                 AC_MSG_RESULT([$OSDMODNAME])
1752                 OSDADDON="subdir-m += $OSDMODNAME"
1753         else
1754                 AC_MSG_RESULT([can't link])
1755                 OSDADDON=
1756         fi
1757 fi
1758 AC_SUBST(OSDADDON)
1759 ])
1760
1761 #
1762 # LC_CONFIGURE
1763 #
1764 # other configure checks
1765 #
1766 AC_DEFUN([LC_CONFIGURE],
1767 [LC_CONFIG_OBD_BUFFER_SIZE
1768
1769 if test $target_cpu == "i686" -o $target_cpu == "x86_64"; then
1770         CFLAGS="$CFLAGS -Werror"
1771 fi
1772
1773 # maximum MDS thread count
1774 LC_MDS_MAX_THREADS
1775
1776 # include/liblustre.h
1777 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
1778
1779 # liblustre/llite_lib.h
1780 AC_CHECK_HEADERS([xtio.h file.h])
1781
1782 # liblustre/dir.c
1783 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
1784
1785 # liblustre/lutil.c
1786 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
1787 AC_CHECK_FUNCS([inet_ntoa])
1788
1789 # libsysio/src/readlink.c
1790 LC_READLINK_SSIZE_T
1791
1792 # libcfs prng.c - depends on linux/types.h from liblustre/dir.c
1793 AC_CHECK_HEADERS([linux/random.h], [], [],
1794                  [#ifdef HAVE_LINUX_TYPES_H
1795                   # include <linux/types.h>
1796                   #endif
1797                  ])
1798
1799 # utils/llverfs.c
1800 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
1801
1802 # check for -lz support
1803 ZLIB=""
1804 AC_CHECK_LIB([z],
1805              [adler32],
1806              [AC_CHECK_HEADERS([zlib.h],
1807                                [ZLIB="-lz"
1808                                 AC_DEFINE([HAVE_ADLER], 1,
1809                                           [support alder32 checksum type])],
1810                                [AC_MSG_WARN([No zlib-devel package found,
1811                                              unable to use adler32 checksum])])],
1812              [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
1813 )
1814 AC_SUBST(ZLIB)
1815
1816 SELINUX=""
1817 AC_CHECK_LIB([selinux],
1818                 [is_selinux_enabled],
1819                 [AC_CHECK_HEADERS([selinux.h],
1820                                 [SELINUX="-lselinux"
1821                                 AC_DEFINE([HAVE_SELINUX], 1,
1822                                                 [support for selinux ])],
1823                                 [AC_MSG_WARN([No selinux-devel package found,
1824                                                 unable to build selinux enabled
1825                                                 tools])])],
1826                 [AC_MSG_WARN([No selinux package found, unable to build selinux
1827                                 enabled tools])]
1828 )
1829 AC_SUBST(SELINUX)
1830
1831 # Super safe df
1832 AC_ARG_ENABLE([mindf],
1833       AC_HELP_STRING([--enable-mindf],
1834                       [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
1835       [],[])
1836 if test "$enable_mindf" = "yes" ;  then
1837       AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
1838 fi
1839
1840 AC_ARG_ENABLE([fail_alloc],
1841         AC_HELP_STRING([--disable-fail-alloc],
1842                 [disable randomly alloc failure]),
1843         [],[enable_fail_alloc=yes])
1844 AC_MSG_CHECKING([whether to randomly failing memory alloc])
1845 AC_MSG_RESULT([$enable_fail_alloc])
1846 if test x$enable_fail_alloc != xno ; then
1847         AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
1848 fi
1849
1850 AC_ARG_ENABLE([invariants],
1851         AC_HELP_STRING([--enable-invariants],
1852                 [enable invariant checking (cpu intensive)]),
1853         [],[])
1854 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
1855 AC_MSG_RESULT([$enable_invariants])
1856 if test x$enable_invariants = xyes ; then
1857         AC_DEFINE([CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK], 1, [enable invariant checking])
1858 fi
1859
1860 AC_ARG_ENABLE([lu_ref],
1861         AC_HELP_STRING([--enable-lu_ref],
1862                 [enable lu_ref reference tracking code]),
1863         [],[])
1864 AC_MSG_CHECKING([whether to track references with lu_ref])
1865 AC_MSG_RESULT([$enable_lu_ref])
1866 if test x$enable_lu_ref = xyes ; then
1867         AC_DEFINE([USE_LU_REF], 1, [enable lu_ref reference tracking code])
1868 fi
1869
1870 AC_ARG_ENABLE([pgstate-track],
1871               AC_HELP_STRING([--enable-pgstate-track],
1872                              [enable page state tracking]),
1873               [enable_pgstat_track='yes'],[])
1874 AC_MSG_CHECKING([whether to enable page state tracking])
1875 AC_MSG_RESULT([$enable_pgstat_track])
1876 if test x$enable_pgstat_track = xyes ; then
1877         AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
1878                   [enable page state tracking code])
1879 fi
1880 ])
1881
1882 #
1883 # LC_CONDITIONALS
1884 #
1885 # AM_CONDITIONALS for lustre
1886 #
1887 AC_DEFUN([LC_CONDITIONALS],
1888 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
1889 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
1890 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
1891 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
1892 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
1893 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
1894 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
1895 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
1896 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
1897 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
1898 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
1899 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
1900 AM_CONDITIONAL(LLITE_LLOOP, test x$enable_llite_lloop_module = xyes)
1901 ])
1902
1903 #
1904 # LC_CONFIG_FILES
1905 #
1906 # files that should be generated with AC_OUTPUT
1907 #
1908 AC_DEFUN([LC_CONFIG_FILES],
1909 [AC_CONFIG_FILES([
1910 lustre/Makefile
1911 lustre/autoMakefile
1912 lustre/autoconf/Makefile
1913 lustre/conf/Makefile
1914 lustre/contrib/Makefile
1915 lustre/doc/Makefile
1916 lustre/include/Makefile
1917 lustre/include/lustre_ver.h
1918 lustre/include/linux/Makefile
1919 lustre/include/darwin/Makefile
1920 lustre/include/lustre/Makefile
1921 lustre/kernel_patches/targets/2.6-rhel6.target
1922 lustre/kernel_patches/targets/2.6-rhel5.target
1923 lustre/kernel_patches/targets/2.6-sles11.target
1924 lustre/kernel_patches/targets/3.0-sles11.target
1925 lustre/kernel_patches/targets/3.0-sles11sp3.target
1926 lustre/kernel_patches/targets/2.6-fc11.target
1927 lustre/kernel_patches/targets/2.6-fc12.target
1928 lustre/kernel_patches/targets/2.6-fc15.target
1929 lustre/kernel_patches/targets/3.x-fc18.target
1930 lustre/ldlm/Makefile
1931 lustre/fid/Makefile
1932 lustre/fid/autoMakefile
1933 lustre/liblustre/Makefile
1934 lustre/liblustre/tests/Makefile
1935 lustre/liblustre/tests/mpi/Makefile
1936 lustre/llite/Makefile
1937 lustre/llite/autoMakefile
1938 lustre/lclient/Makefile
1939 lustre/lov/Makefile
1940 lustre/lov/autoMakefile
1941 lustre/mdc/Makefile
1942 lustre/mdc/autoMakefile
1943 lustre/lmv/Makefile
1944 lustre/lmv/autoMakefile
1945 lustre/lfsck/Makefile
1946 lustre/lfsck/autoMakefile
1947 lustre/mdt/Makefile
1948 lustre/mdt/autoMakefile
1949 lustre/nodemap/Makefile
1950 lustre/nodemap/autoMakefile
1951 lustre/mdd/Makefile
1952 lustre/mdd/autoMakefile
1953 lustre/fld/Makefile
1954 lustre/fld/autoMakefile
1955 lustre/obdclass/Makefile
1956 lustre/obdclass/autoMakefile
1957 lustre/obdclass/linux/Makefile
1958 lustre/obdecho/Makefile
1959 lustre/obdecho/autoMakefile
1960 lustre/ofd/Makefile
1961 lustre/ofd/autoMakefile
1962 lustre/osc/Makefile
1963 lustre/osc/autoMakefile
1964 lustre/ost/Makefile
1965 lustre/ost/autoMakefile
1966 lustre/osd-ldiskfs/Makefile
1967 lustre/osd-ldiskfs/autoMakefile
1968 lustre/osd-zfs/Makefile
1969 lustre/osd-zfs/autoMakefile
1970 lustre/mgc/Makefile
1971 lustre/mgc/autoMakefile
1972 lustre/mgs/Makefile
1973 lustre/mgs/autoMakefile
1974 lustre/target/Makefile
1975 lustre/ptlrpc/Makefile
1976 lustre/ptlrpc/autoMakefile
1977 lustre/ptlrpc/gss/Makefile
1978 lustre/ptlrpc/gss/autoMakefile
1979 lustre/quota/Makefile
1980 lustre/quota/autoMakefile
1981 lustre/scripts/Makefile
1982 lustre/tests/Makefile
1983 lustre/tests/mpi/Makefile
1984 lustre/utils/Makefile
1985 lustre/utils/gss/Makefile
1986 lustre/osp/Makefile
1987 lustre/osp/autoMakefile
1988 lustre/lod/Makefile
1989 lustre/lod/autoMakefile
1990 lustre/obdclass/darwin/Makefile
1991 ])
1992 ])