1 #* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 #* vim:expandtab:shiftwidth=8:tabstop=8:
6 # Wrapper for AC_CONFIG_SUBDIR
8 AC_DEFUN([LC_CONFIG_SRCDIR],
9 [AC_CONFIG_SRCDIR([lustre/obdclass/obdo.c])
16 # lustre specific paths
18 AC_DEFUN([LC_PATH_DEFAULTS],
19 [# ptlrpc kernel build requires this
27 demodir='$(docdir)/demo'
30 pkgexampledir='${pkgdatadir}/examples'
31 AC_SUBST(pkgexampledir)
37 # is the target os supported?
39 AC_DEFUN([LC_TARGET_SUPPORTED],
53 # that ext3 is enabled in the kernel
55 AC_DEFUN([LC_CONFIG_EXT3],
56 [LB_LINUX_CONFIG([EXT3_FS],[],[
57 LB_LINUX_CONFIG([EXT3_FS_MODULE],[],[$2])
59 LB_LINUX_CONFIG([EXT3_FS_XATTR],[$1],[$3])
65 # If we have (and can build) fshooks.h
67 AC_DEFUN([LC_FSHOOKS],
68 [LB_CHECK_FILE([$LINUX/include/linux/fshooks.h],[
69 AC_MSG_CHECKING([if fshooks.h can be compiled])
70 LB_LINUX_TRY_COMPILE([
71 #include <linux/fshooks.h>
76 AC_MSG_WARN([You might have better luck with gcc 3.3.x.])
77 AC_MSG_WARN([You can set CC=gcc33 before running configure.])
78 AC_MSG_ERROR([Your compiler cannot build fshooks.h.])
87 # LC_FUNC_RELEASEPAGE_WITH_INT
89 # if ->releasepage() takes an int arg in 2.6.9
90 # This kernel defines gfp_t (HAS_GFP_T) but doesn't use it for this function,
91 # while others either don't have gfp_t or pass gfp_t as the parameter.
93 AC_DEFUN([LC_FUNC_RELEASEPAGE_WITH_INT],
94 [AC_MSG_CHECKING([if releasepage has a int parameter])
95 RELEASEPAGE_WITH_INT="`grep -c 'releasepage.*int' $LINUX/include/linux/fs.h`"
96 if test "$RELEASEPAGE_WITH_INT" != 0 ; then
97 AC_DEFINE(HAVE_RELEASEPAGE_WITH_INT, 1,
98 [releasepage with int parameter])
106 # LC_FUNC_FILEMAP_FDATASYNC
108 # if filemap_fdatasync() exists
110 AC_DEFUN([LC_FUNC_FILEMAP_FDATAWRITE],
111 [AC_MSG_CHECKING([whether filemap_fdatawrite() is defined])
112 LB_LINUX_TRY_COMPILE([
113 #include <linux/fs.h>
115 int (*foo)(struct address_space *)= filemap_fdatawrite;
118 AC_DEFINE(HAVE_FILEMAP_FDATAWRITE, 1, [filemap_fdatawrite() found])
125 # LC_HEADER_MM_INLINE
127 # RHEL kernels define page_count in mm_inline.h
129 AC_DEFUN([LC_HEADER_MM_INLINE],
130 [AC_MSG_CHECKING([if kernel has mm_inline.h header])
131 LB_LINUX_TRY_COMPILE([
132 #include <linux/mm_inline.h>
135 #error mm_inline.h does not define page_count
139 AC_DEFINE(HAVE_MM_INLINE, 1, [mm_inline found])
148 # if inode->i_alloc_sem exists
150 AC_DEFUN([LC_STRUCT_INODE],
151 [AC_MSG_CHECKING([if struct inode has i_alloc_sem])
152 LB_LINUX_TRY_COMPILE([
153 #include <linux/fs.h>
154 #include <linux/version.h>
156 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,24))
157 #error "down_read_trylock broken before 2.4.24"
160 return (char *)&i.i_alloc_sem - (char *)&i;
163 AC_DEFINE(HAVE_I_ALLOC_SEM, 1, [struct inode has i_alloc_sem])
170 # LC_FUNC_REGISTER_CACHE
172 # if register_cache() is defined by kernel
174 # There are two ways to shrink one customized cache in linux kernels. For the
175 # kernels are prior than 2.6.5(?), register_cache() is used, and for latest
176 # kernels, set_shrinker() is used instead.
178 AC_DEFUN([LC_FUNC_REGISTER_CACHE],
179 [AC_MSG_CHECKING([if kernel defines cache pressure hook])
180 LB_LINUX_TRY_COMPILE([
181 #include <linux/mm.h>
185 set_shrinker(1, shrinker);
187 AC_MSG_RESULT([set_shrinker])
188 AC_DEFINE(HAVE_SHRINKER_CACHE, 1, [shrinker_cache found])
189 AC_DEFINE(HAVE_CACHE_RETURN_INT, 1, [shrinkers should return int])
191 LB_LINUX_TRY_COMPILE([
192 #include <linux/list.h>
193 #include <linux/cache_def.h>
195 struct cache_definition cache;
197 AC_MSG_RESULT([register_cache])
198 AC_DEFINE(HAVE_REGISTER_CACHE, 1, [register_cache found])
199 AC_MSG_CHECKING([if kernel expects return from cache shrink ])
200 tmp_flags="$EXTRA_KCFLAGS"
201 EXTRA_KCFLAGS="-Werror"
202 LB_LINUX_TRY_COMPILE([
203 #include <linux/list.h>
204 #include <linux/cache_def.h>
206 struct cache_definition c;
207 c.shrinker = (int (*)(int, unsigned int))1;
209 AC_DEFINE(HAVE_CACHE_RETURN_INT, 1,
210 [kernel expects return from shrink_cache])
215 EXTRA_KCFLAGS="$tmp_flags"
223 # LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
225 # check for our patched grab_cache_page_nowait_gfp() function
227 AC_DEFUN([LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP],
228 [AC_MSG_CHECKING([if kernel defines grab_cache_page_nowait_gfp()])
229 HAVE_GCPN_GFP="`grep -c 'grab_cache_page_nowait_gfp' $LINUX/include/linux/pagemap.h`"
230 if test "$HAVE_GCPN_GFP" != 0 ; then
231 AC_DEFINE(HAVE_GRAB_CACHE_PAGE_NOWAIT_GFP, 1,
232 [kernel has grab_cache_page_nowait_gfp()])
240 # LC_FUNC_DEV_SET_RDONLY
242 # check for the old-style dev_set_rdonly which took an extra "devno" param
243 # and can only set a single device to discard writes at one time
245 AC_DEFUN([LC_FUNC_DEV_SET_RDONLY],
246 [AC_MSG_CHECKING([if kernel has new dev_set_rdonly])
247 LB_LINUX_TRY_COMPILE([
248 #include <linux/fs.h>
250 #ifndef HAVE_CLEAR_RDONLY_ON_PUT
251 #error needs to be patched by lustre kernel patches from Lustre version 1.4.3 or above.
255 AC_DEFINE(HAVE_DEV_SET_RDONLY, 1, [kernel has new dev_set_rdonly])
257 AC_MSG_RESULT([no, Linux kernel source needs to be patches by lustre
258 kernel patches from Lustre version 1.4.3 or above.])
263 # LC_CONFIG_BACKINGFS
265 # setup, check the backing filesystem
267 AC_DEFUN([LC_CONFIG_BACKINGFS],
271 if test x$with_ldiskfs = xno ; then
274 if test x$linux25$enable_server = xyesyes ; then
275 AC_MSG_ERROR([ldiskfs is required for 2.6-based servers.])
278 # --- Check that ext3 and ext3 xattr are enabled in the kernel
280 AC_MSG_ERROR([Lustre requires that ext3 is enabled in the kernel])
282 AC_MSG_WARN([Lustre requires that extended attributes for ext3 are enabled in the kernel])
283 AC_MSG_WARN([This build may fail.])
287 LB_DEFINE_LDISKFS_OPTIONS
290 AC_MSG_CHECKING([which backing filesystem to use])
291 AC_MSG_RESULT([$BACKINGFS])
298 # the pinger is temporary, until we have the recovery node in place
300 AC_DEFUN([LC_CONFIG_PINGER],
301 [AC_MSG_CHECKING([whether to enable pinger support])
302 AC_ARG_ENABLE([pinger],
303 AC_HELP_STRING([--disable-pinger],
304 [disable recovery pinger support]),
305 [],[enable_pinger='yes'])
306 AC_MSG_RESULT([$enable_pinger])
307 if test x$enable_pinger != xno ; then
308 AC_DEFINE(ENABLE_PINGER, 1, Use the Pinger)
315 # do checksum of bulk data between client and OST
317 AC_DEFUN([LC_CONFIG_CHECKSUM],
318 [AC_MSG_CHECKING([whether to enable data checksum support])
319 AC_ARG_ENABLE([checksum],
320 AC_HELP_STRING([--disable-checksum],
321 [disable data checksum support]),
322 [],[enable_checksum='yes'])
323 AC_MSG_RESULT([$enable_checksum])
324 if test x$enable_checksum != xno ; then
325 AC_DEFINE(ENABLE_CHECKSUM, 1, do data checksums)
330 # LC_CONFIG_HEALTH_CHECK_WRITE
332 # Turn off the actual write to the disk
334 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE],
335 [AC_MSG_CHECKING([whether to enable a write with the health check])
336 AC_ARG_ENABLE([health_write],
337 AC_HELP_STRING([--enable-health_write],
338 [enable disk writes when doing health check]),
339 [],[enable_health_write='no'])
340 AC_MSG_RESULT([$enable_health_write])
341 if test x$enable_health_write != xno ; then
342 AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, Write when Checking Health)
347 # LC_CONFIG_LIBLUSTRE_RECOVERY
349 AC_DEFUN([LC_CONFIG_LIBLUSTRE_RECOVERY],
350 [AC_MSG_CHECKING([whether to enable liblustre recovery support])
351 AC_ARG_ENABLE([liblustre-recovery],
352 AC_HELP_STRING([--disable-liblustre-recovery],
353 [disable liblustre recovery support]),
354 [],[enable_liblustre_recovery='yes'])
355 AC_MSG_RESULT([$enable_liblustre_recovery])
356 if test x$enable_liblustre_recovery != xno ; then
357 AC_DEFINE(ENABLE_LIBLUSTRE_RECOVERY, 1, Liblustre Can Recover)
362 # LC_CONFIG_OBD_BUFFER_SIZE
364 # the maximum buffer size of lctl ioctls
366 AC_DEFUN([LC_CONFIG_OBD_BUFFER_SIZE],
367 [AC_MSG_CHECKING([maximum OBD ioctl size])
368 AC_ARG_WITH([obd-buffer-size],
369 AC_HELP_STRING([--with-obd-buffer-size=[size]],
370 [set lctl ioctl maximum bytes (default=8192)]),
372 OBD_BUFFER_SIZE=$with_obd_buffer_size
376 AC_MSG_RESULT([$OBD_BUFFER_SIZE bytes])
377 AC_DEFINE_UNQUOTED(OBD_MAX_IOCTL_BUFFER, $OBD_BUFFER_SIZE, [IOCTL Buffer Size])
383 # AIX does not have statfs.f_namelen
385 AC_DEFUN([LC_STRUCT_STATFS],
386 [AC_MSG_CHECKING([if struct statfs has a f_namelen field])
387 LB_LINUX_TRY_COMPILE([
388 #include <linux/vfs.h>
394 AC_DEFINE(HAVE_STATFS_NAMELEN, 1, [struct statfs has a namelen field])
401 # LC_READLINK_SSIZE_T
403 AC_DEFUN([LC_READLINK_SSIZE_T],
404 [AC_MSG_CHECKING([if readlink returns ssize_t])
408 ssize_t readlink(const char *, char *, size_t);
411 AC_DEFINE(HAVE_POSIX_1003_READLINK, 1, [readlink returns ssize_t])
417 AC_DEFUN([LC_FUNC_PAGE_MAPPED],
418 [AC_MSG_CHECKING([if kernel offers page_mapped])
419 LB_LINUX_TRY_COMPILE([
420 #include <linux/mm.h>
425 AC_DEFINE(HAVE_PAGE_MAPPED, 1, [page_mapped found])
431 AC_DEFUN([LC_STRUCT_FILE_OPS_UNLOCKED_IOCTL],
432 [AC_MSG_CHECKING([if struct file_operations has an unlocked_ioctl field])
433 LB_LINUX_TRY_COMPILE([
434 #include <linux/fs.h>
436 struct file_operations fops;
437 &fops.unlocked_ioctl;
440 AC_DEFINE(HAVE_UNLOCKED_IOCTL, 1, [struct file_operations has an unlock ed_ioctl field])
446 AC_DEFUN([LC_FILEMAP_POPULATE],
447 [AC_MSG_CHECKING([for exported filemap_populate])
448 LB_LINUX_TRY_COMPILE([
449 #include <asm/page.h>
450 #include <linux/mm.h>
452 filemap_populate(NULL, 0, 0, __pgprot(0), 0, 0);
455 AC_DEFINE(HAVE_FILEMAP_POPULATE, 1, [Kernel exports filemap_populate])
461 AC_DEFUN([LC_D_ADD_UNIQUE],
462 [AC_MSG_CHECKING([for d_add_unique])
463 LB_LINUX_TRY_COMPILE([
464 #include <linux/dcache.h>
466 d_add_unique(NULL, NULL);
469 AC_DEFINE(HAVE_D_ADD_UNIQUE, 1, [Kernel has d_add_unique])
475 AC_DEFUN([LC_BIT_SPINLOCK_H],
476 [LB_CHECK_FILE([$LINUX/include/linux/bit_spinlock.h],[
477 AC_MSG_CHECKING([if bit_spinlock.h can be compiled])
478 LB_LINUX_TRY_COMPILE([
479 #include <asm/processor.h>
480 #include <linux/spinlock.h>
481 #include <linux/bit_spinlock.h>
484 AC_DEFINE(HAVE_BIT_SPINLOCK_H, 1, [Kernel has bit_spinlock.h])
495 # If we have xattr_acl.h
497 AC_DEFUN([LC_XATTR_ACL],
498 [LB_CHECK_FILE([$LINUX/include/linux/xattr_acl.h],[
499 AC_MSG_CHECKING([if xattr_acl.h can be compiled])
500 LB_LINUX_TRY_COMPILE([
501 #include <linux/xattr_acl.h>
504 AC_DEFINE(HAVE_XATTR_ACL, 1, [Kernel has xattr_acl])
515 # If we have fiemap.h
516 # after 2.6.27 use fiemap.h in include/linux
518 AC_DEFUN([LC_LINUX_FIEMAP_H],
519 [LB_CHECK_FILE([$LINUX/include/linux/fiemap.h],[
520 AC_MSG_CHECKING([if fiemap.h can be compiled])
521 LB_LINUX_TRY_COMPILE([
522 #include <linux/fiemap.h>
525 AC_DEFINE(HAVE_LINUX_FIEMAP_H, 1, [Kernel has fiemap.h])
534 AC_DEFUN([LC_STRUCT_INTENT_FILE],
535 [AC_MSG_CHECKING([if struct open_intent has a file field])
536 LB_LINUX_TRY_COMPILE([
537 #include <linux/fs.h>
538 #include <linux/namei.h>
540 struct open_intent intent;
544 AC_DEFINE(HAVE_FILE_IN_STRUCT_INTENT, 1, [struct open_intent has a file field])
551 AC_DEFUN([LC_POSIX_ACL_XATTR_H],
552 [LB_CHECK_FILE([$LINUX/include/linux/posix_acl_xattr.h],[
553 AC_MSG_CHECKING([if linux/posix_acl_xattr.h can be compiled])
554 LB_LINUX_TRY_COMPILE([
555 #include <linux/posix_acl_xattr.h>
558 AC_DEFINE(HAVE_LINUX_POSIX_ACL_XATTR_H, 1, [linux/posix_acl_xattr.h found])
571 # starting from 2.6.19 linux kernel exports __iget()
573 AC_DEFUN([LC_EXPORT___IGET],
574 [LB_CHECK_SYMBOL_EXPORT([__iget],
576 AC_DEFINE(HAVE_EXPORT___IGET, 1, [kernel exports __iget])
581 AC_DEFUN([LC_LUSTRE_VERSION_H],
582 [LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
583 rm -f "$LUSTRE/include/linux/lustre_version.h"
585 touch "$LUSTRE/include/linux/lustre_version.h"
586 if test x$enable_server = xyes ; then
587 AC_MSG_WARN([Unpatched kernel detected.])
588 AC_MSG_WARN([Lustre servers cannot be built with an unpatched kernel;])
589 AC_MSG_WARN([disabling server build])
598 AC_DEFUN([LC_CAPA_CRYPTO],
599 [LB_LINUX_CONFIG_IM([CRYPTO],[],[
600 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])
602 LB_LINUX_CONFIG_IM([CRYPTO_HMAC],[],[
603 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])
605 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],[
606 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])
611 # LC_CONFIG_RMTCLIENT
614 dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
616 AC_DEFUN([LC_CONFIG_RMTCLIENT],
617 [LB_LINUX_CONFIG_IM([CRYPTO_AES],[],[
618 AC_MSG_WARN([Lustre remote client require that CONFIG_CRYPTO_AES is enabled in your kernel.])
622 AC_DEFUN([LC_SUNRPC_CACHE],
623 [AC_MSG_CHECKING([if sunrpc struct cache_head uses kref])
624 LB_LINUX_TRY_COMPILE([
625 #include <linux/sunrpc/cache.h>
627 struct cache_head ch;
631 AC_DEFINE(HAVE_SUNRPC_CACHE_V2, 1, [sunrpc cache facility v2])
637 AC_DEFUN([LC_CONFIG_SUNRPC],
638 [LB_LINUX_CONFIG_IM([SUNRPC],[],
639 [AC_MSG_ERROR([kernel SUNRPC support is required by using GSS.])])
644 # LC_CONFIG_GSS_KEYRING (default enabled, if gss is enabled)
646 AC_DEFUN([LC_CONFIG_GSS_KEYRING],
647 [AC_MSG_CHECKING([whether to enable gss keyring backend])
648 AC_ARG_ENABLE([gss_keyring],
649 [AC_HELP_STRING([--disable-gss-keyring],
650 [disable gss keyring backend])],
651 [],[enable_gss_keyring='yes'])
652 AC_MSG_RESULT([$enable_gss_keyring])
654 if test x$enable_gss_keyring != xno; then
655 LB_LINUX_CONFIG_IM([KEYS],[],
656 [AC_MSG_ERROR([GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.])])
658 AC_CHECK_LIB([keyutils], [keyctl_search], [],
659 [AC_MSG_ERROR([libkeyutils is not found, which is required by gss keyring backend])],)
661 AC_DEFINE([HAVE_GSS_KEYRING], [1],
662 [Define this if you enable gss keyring backend])
667 # LC_CONFIG_GSS (default disabled)
669 # Build gss and related tools of Lustre. Currently both kernel and user space
670 # parts are depend on linux platform.
672 AC_DEFUN([LC_CONFIG_GSS],
673 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
675 [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
676 [],[enable_gss='no'])
677 AC_MSG_RESULT([$enable_gss])
679 if test x$enable_gss == xyes; then
680 LC_CONFIG_GSS_KEYRING
683 AC_DEFINE([HAVE_GSS], [1], [Define this if you enable gss])
685 LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
686 [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
687 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
688 [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
689 LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
690 [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
691 LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
692 [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
694 AC_CHECK_LIB([gssapi], [gss_init_sec_context],
695 [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"],
696 [AC_CHECK_LIB([gssglue], [gss_init_sec_context],
697 [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue"],
698 [AC_MSG_ERROR([libgssapi or libgssglue is not found, which is required by GSS.])])],)
700 AC_SUBST(GSSAPI_LIBS)
706 # LC_FUNC_MS_FLOCK_LOCK
708 # SLES9 kernel has MS_FLOCK_LOCK sb flag
710 AC_DEFUN([LC_FUNC_MS_FLOCK_LOCK],
711 [AC_MSG_CHECKING([if kernel has MS_FLOCK_LOCK sb flag])
712 LB_LINUX_TRY_COMPILE([
713 #include <linux/fs.h>
715 int flags = MS_FLOCK_LOCK;
717 AC_DEFINE(HAVE_MS_FLOCK_LOCK, 1,
718 [kernel has MS_FLOCK_LOCK flag])
726 # LC_FUNC_HAVE_CAN_SLEEP_ARG
728 # SLES9 kernel has third arg can_sleep
729 # in fs/locks.c: flock_lock_file_wait()
731 AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG],
732 [AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
733 LB_LINUX_TRY_COMPILE([
734 #include <linux/fs.h>
738 struct file_lock *file_lock;
739 flock_lock_file_wait(file, file_lock, cansleep);
741 AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1,
742 [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
752 # rhel4.2 kernel has f_op->flock field
754 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
755 [AC_MSG_CHECKING([if struct file_operations has flock field])
756 LB_LINUX_TRY_COMPILE([
757 #include <linux/fs.h>
759 struct file_operations ll_file_operations_flock;
760 ll_file_operations_flock.flock = NULL;
762 AC_DEFINE(HAVE_F_OP_FLOCK, 1,
763 [struct file_operations has flock field])
773 # task struct has p_pptr instead of parent
775 AC_DEFUN([LC_TASK_PPTR],
776 [AC_MSG_CHECKING([task p_pptr found])
777 LB_LINUX_TRY_COMPILE([
778 #include <linux/sched.h>
780 struct task_struct *p;
785 AC_DEFINE(HAVE_TASK_PPTR, 1, [task p_pptr found])
794 # rhel4.2 kernel has f_op->flock field
796 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
797 [AC_MSG_CHECKING([if struct file_operations has flock field])
798 LB_LINUX_TRY_COMPILE([
799 #include <linux/fs.h>
801 struct file_operations ll_file_operations_flock;
802 ll_file_operations_flock.flock = NULL;
804 AC_DEFINE(HAVE_F_OP_FLOCK, 1,
805 [struct file_operations has flock field])
812 # LC_EXPORT_SYNCHRONIZE_RCU
813 # after 2.6.12 synchronize_rcu is preferred over synchronize_kernel
814 AC_DEFUN([LC_EXPORT_SYNCHRONIZE_RCU],
815 [LB_CHECK_SYMBOL_EXPORT([synchronize_rcu],
816 [kernel/rcupdate.c],[
817 AC_DEFINE(HAVE_SYNCHRONIZE_RCU, 1,
818 [in 2.6.12 synchronize_rcu preferred over synchronize_kernel])
824 # after 2.6.15 inode have i_mutex intead of i_sem
825 AC_DEFUN([LC_INODE_I_MUTEX],
826 [AC_MSG_CHECKING([if inode has i_mutex ])
827 LB_LINUX_TRY_COMPILE([
828 #include <linux/mutex.h>
829 #include <linux/fs.h>
834 mutex_unlock(&i.i_mutex);
837 AC_DEFINE(HAVE_INODE_I_MUTEX, 1,
838 [after 2.6.15 inode have i_mutex intead of i_sem])
845 # after 2.6.18 seq_file has lock intead of sem
846 AC_DEFUN([LC_SEQ_LOCK],
847 [AC_MSG_CHECKING([if struct seq_file has lock field])
848 LB_LINUX_TRY_COMPILE([
849 #include <linux/seq_file.h>
853 mutex_unlock(&seq.lock);
856 AC_DEFINE(HAVE_SEQ_LOCK, 1,
857 [after 2.6.18 seq_file has lock intead of sem])
864 # after 2.6.17 dquote use mutex instead if semaphore
865 AC_DEFUN([LC_DQUOTOFF_MUTEX],
866 [AC_MSG_CHECKING([use dqonoff_mutex])
867 LB_LINUX_TRY_COMPILE([
868 #include <linux/mutex.h>
869 #include <linux/fs.h>
870 #include <linux/quota.h>
872 struct quota_info dq;
874 mutex_unlock(&dq.dqonoff_mutex);
877 AC_DEFINE(HAVE_DQUOTOFF_MUTEX, 1,
878 [after 2.6.17 dquote use mutex instead if semaphore])
885 # LC_STATFS_DENTRY_PARAM
886 # starting from 2.6.18 linux kernel uses dentry instead of
887 # super_block for first vfs_statfs argument
889 AC_DEFUN([LC_STATFS_DENTRY_PARAM],
890 [AC_MSG_CHECKING([first vfs_statfs parameter is dentry])
891 LB_LINUX_TRY_COMPILE([
892 #include <linux/fs.h>
894 int vfs_statfs(struct dentry *, struct kstatfs *);
896 AC_DEFINE(HAVE_STATFS_DENTRY_PARAM, 1,
897 [first parameter of vfs_statfs is dentry])
906 # starting from 2.6.18 kernel don't export do_kern_mount
907 # and want to use vfs_kern_mount instead.
909 AC_DEFUN([LC_VFS_KERN_MOUNT],
910 [AC_MSG_CHECKING([vfs_kern_mount exist in kernel])
911 LB_LINUX_TRY_COMPILE([
912 #include <linux/mount.h>
914 vfs_kern_mount(NULL, 0, NULL, NULL);
916 AC_DEFINE(HAVE_VFS_KERN_MOUNT, 1,
917 [vfs_kern_mount exist in kernel])
925 # LC_INVALIDATEPAGE_RETURN_INT
926 # more 2.6 api changes. return type for the invalidatepage
927 # address_space_operation is 'void' in new kernels but 'int' in old
929 AC_DEFUN([LC_INVALIDATEPAGE_RETURN_INT],
930 [AC_MSG_CHECKING([invalidatepage has return int])
931 LB_LINUX_TRY_COMPILE([
932 #include <linux/buffer_head.h>
934 int rc = block_invalidatepage(NULL, 0);
937 AC_DEFINE(HAVE_INVALIDATEPAGE_RETURN_INT, 1,
938 [Define if return type of invalidatepage should be int])
944 # LC_UMOUNTBEGIN_HAS_VFSMOUNT
945 # more 2.6 API changes. 2.6.18 umount_begin has different parameters
946 AC_DEFUN([LC_UMOUNTBEGIN_HAS_VFSMOUNT],
947 [AC_MSG_CHECKING([if umount_begin needs vfsmount parameter instead of super_block])
948 tmp_flags="$EXTRA_KCFLAGS"
949 EXTRA_KCFLAGS="-Werror"
950 LB_LINUX_TRY_COMPILE([
951 #include <linux/fs.h>
954 static void cfg_umount_begin (struct vfsmount *v, int flags)
959 static struct super_operations cfg_super_operations = {
960 .umount_begin = cfg_umount_begin,
963 cfg_super_operations.umount_begin(NULL,0);
966 AC_DEFINE(HAVE_UMOUNTBEGIN_VFSMOUNT, 1,
967 [Define umount_begin need second argument])
971 EXTRA_KCFLAGS="$tmp_flags"
974 # inode have i_private field since 2.6.17
975 AC_DEFUN([LC_INODE_IPRIVATE],
976 [AC_MSG_CHECKING([if inode has a i_private field])
977 LB_LINUX_TRY_COMPILE([
978 #include <linux/fs.h>
984 AC_DEFINE(HAVE_INODE_IPRIVATE, 1,
985 [struct inode has i_private field])
992 # inode don't have i_blksize field
993 AC_DEFUN([LC_INODE_BLKSIZE],
994 [AC_MSG_CHECKING([inode has i_blksize field])
995 LB_LINUX_TRY_COMPILE([
996 #include <linux/fs.h>
1002 AC_DEFINE(HAVE_INODE_BLKSIZE, 1,
1003 [struct inode has i_blksize field])
1009 # LC_VFS_READDIR_U64_INO
1010 # 2.6.19 use u64 for inode number instead of inode_t
1011 AC_DEFUN([LC_VFS_READDIR_U64_INO],
1012 [AC_MSG_CHECKING([check vfs_readdir need 64bit inode number])
1013 tmp_flags="$EXTRA_KCFLAGS"
1014 EXTRA_KCFLAGS="-Werror"
1015 LB_LINUX_TRY_COMPILE([
1016 #include <linux/fs.h>
1017 int fillonedir(void * __buf, const char * name, int namlen, loff_t offset,
1018 u64 ino, unsigned int d_type)
1025 filter = fillonedir;
1029 AC_DEFINE(HAVE_VFS_READDIR_U64_INO, 1,
1030 [if vfs_readdir need 64bit inode number])
1034 EXTRA_KCFLAGS="$tmp_flags"
1038 # 2.6.19 replaced writev with aio_write
1039 AC_DEFUN([LC_FILE_WRITEV],
1040 [AC_MSG_CHECKING([writev in fops])
1041 LB_LINUX_TRY_COMPILE([
1042 #include <linux/fs.h>
1044 struct file_operations *fops = NULL;
1045 fops->writev = NULL;
1048 AC_DEFINE(HAVE_FILE_WRITEV, 1,
1055 # LC_GENERIC_FILE_READ
1056 # 2.6.19 replaced readv with aio_read
1057 AC_DEFUN([LC_FILE_READV],
1058 [AC_MSG_CHECKING([readv in fops])
1059 LB_LINUX_TRY_COMPILE([
1060 #include <linux/fs.h>
1062 struct file_operations *fops = NULL;
1066 AC_DEFINE(HAVE_FILE_READV, 1,
1074 # 2.6.18 don't export nr_pagecahe
1075 AC_DEFUN([LC_NR_PAGECACHE],
1076 [AC_MSG_CHECKING([kernel export nr_pagecache])
1077 LB_LINUX_TRY_COMPILE([
1078 #include <linux/pagemap.h>
1080 return atomic_read(&nr_pagecache);
1083 AC_DEFINE(HAVE_NR_PAGECACHE, 1,
1084 [is kernel export nr_pagecache])
1090 # LC_CANCEL_DIRTY_PAGE
1091 # 2.6.20 introduse cancel_dirty_page instead of
1093 AC_DEFUN([LC_CANCEL_DIRTY_PAGE],
1094 [AC_MSG_CHECKING([kernel has cancel_dirty_page])
1095 LB_LINUX_TRY_COMPILE([
1096 #include <linux/mm.h>
1097 #include <linux/page-flags.h>
1099 /* tmp workaround for broken OFED 1.4.1 at SLES10 */
1100 #if defined(CONFIG_SLE_VERSION) && CONFIG_SLE_VERSION == 10 && defined(_BACKPORT_LINUX_MM_H_)
1101 #error badly implementation of cancel_dirty_pages
1103 cancel_dirty_page(NULL, 0);
1106 AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
1107 [kernel has cancel_dirty_page instead of clear_page_dirty])
1116 # In order to support raid5 zerocopy patch, we have to patch the kernel to make
1117 # it support constant page, which means the page won't be modified during the
1120 AC_DEFUN([LC_PAGE_CONSTANT],
1121 [AC_MSG_CHECKING([if kernel have PageConstant defined])
1122 LB_LINUX_TRY_COMPILE([
1123 #include <linux/mm.h>
1124 #include <linux/page-flags.h>
1127 #error "Have no raid5 zcopy patch"
1131 AC_DEFINE(HAVE_PAGE_CONSTANT, 1, [kernel have PageConstant supported])
1137 # RHEL5 in FS-cache patch rename PG_checked flag
1139 AC_DEFUN([LC_PG_FS_MISC],
1140 [AC_MSG_CHECKING([kernel has PG_fs_misc])
1141 LB_LINUX_TRY_COMPILE([
1142 #include <linux/mm.h>
1143 #include <linux/page-flags.h>
1146 #error PG_fs_misc not defined in kernel
1150 AC_DEFINE(HAVE_PG_FS_MISC, 1,
1151 [is kernel have PG_fs_misc])
1157 # RHEL5 PageChecked and SetPageChecked defined
1158 AC_DEFUN([LC_PAGE_CHECKED],
1159 [AC_MSG_CHECKING([kernel has PageChecked and SetPageChecked])
1160 LB_LINUX_TRY_COMPILE([
1161 #include <linux/mm.h>
1162 #include <linux/page-flags.h>
1165 #error PageChecked not defined in kernel
1167 #ifndef SetPageChecked
1168 #error SetPageChecked not defined in kernel
1172 AC_DEFINE(HAVE_PAGE_CHECKED, 1,
1173 [does kernel have PageChecked and SetPageChecked])
1179 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE],
1180 [LB_CHECK_SYMBOL_EXPORT([truncate_complete_page],
1182 AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
1183 [kernel export truncate_complete_page])
1188 AC_DEFUN([LC_EXPORT_TRUNCATE_RANGE],
1189 [LB_CHECK_SYMBOL_EXPORT([truncate_inode_pages_range],
1191 AC_DEFINE(HAVE_TRUNCATE_RANGE, 1,
1192 [kernel export truncate_inode_pages_range])
1197 AC_DEFUN([LC_EXPORT_D_REHASH_COND],
1198 [LB_CHECK_SYMBOL_EXPORT([d_rehash_cond],
1200 AC_DEFINE(HAVE_D_REHASH_COND, 1,
1201 [d_rehash_cond is exported by the kernel])
1206 AC_DEFUN([LC_EXPORT___D_REHASH],
1207 [LB_CHECK_SYMBOL_EXPORT([__d_rehash],
1209 AC_DEFINE(HAVE___D_REHASH, 1,
1210 [__d_rehash is exported by the kernel])
1215 AC_DEFUN([LC_EXPORT_D_MOVE_LOCKED],
1216 [LB_CHECK_SYMBOL_EXPORT([d_move_locked],
1218 AC_DEFINE(HAVE_D_MOVE_LOCKED, 1,
1219 [d_move_locked is exported by the kernel])
1224 AC_DEFUN([LC_EXPORT___D_MOVE],
1225 [LB_CHECK_SYMBOL_EXPORT([__d_move],
1227 AC_DEFINE(HAVE___D_MOVE, 1,
1228 [__d_move is exported by the kernel])
1234 # LC_EXPORT_INVALIDATE_MAPPING_PAGES
1236 # SLES9, RHEL4, RHEL5, vanilla 2.6.24 export invalidate_mapping_pages() but
1237 # SLES10 2.6.16 does not, for some reason. For filter cache invalidation.
1239 AC_DEFUN([LC_EXPORT_INVALIDATE_MAPPING_PAGES],
1240 [LB_CHECK_SYMBOL_EXPORT([invalidate_mapping_pages], [mm/truncate.c], [
1241 AC_DEFINE(HAVE_INVALIDATE_MAPPING_PAGES, 1,
1242 [exported invalidate_mapping_pages])],
1243 [LB_CHECK_SYMBOL_EXPORT([invalidate_inode_pages], [mm/truncate.c], [
1244 AC_DEFINE(HAVE_INVALIDATE_INODE_PAGES, 1,
1245 [exported invalidate_inode_pages])], [
1246 AC_MSG_ERROR([no way to invalidate pages])
1252 # LC_EXPORT_FILEMAP_FDATASYNC_RANGE
1254 # No standard kernels export this
1256 AC_DEFUN([LC_EXPORT_FILEMAP_FDATAWRITE_RANGE],
1257 [LB_CHECK_SYMBOL_EXPORT([filemap_fdatawrite_range],
1259 AC_DEFINE(HAVE_FILEMAP_FDATAWRITE_RANGE, 1,
1260 [filemap_fdatawrite_range is exported by the kernel])
1265 # The actual symbol exported varies among architectures, so we need
1266 # to check many symbols (but only in the current architecture.) No
1267 # matter what symbol is exported, the kernel #defines node_to_cpumask
1268 # to the appropriate function and that's what we use.
1269 AC_DEFUN([LC_EXPORT_NODE_TO_CPUMASK],
1270 [LB_CHECK_SYMBOL_EXPORT([node_to_cpumask],
1271 [arch/$LINUX_ARCH/mm/numa.c],
1272 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1273 [node_to_cpumask is exported by
1274 the kernel])]) # x86_64
1275 LB_CHECK_SYMBOL_EXPORT([node_to_cpu_mask],
1276 [arch/$LINUX_ARCH/kernel/smpboot.c],
1277 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1278 [node_to_cpumask is exported by
1279 the kernel])]) # ia64
1280 LB_CHECK_SYMBOL_EXPORT([node_2_cpu_mask],
1281 [arch/$LINUX_ARCH/kernel/smpboot.c],
1282 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1283 [node_to_cpumask is exported by
1284 the kernel])]) # i386
1287 # 2.6.22 lost second parameter for invalidate_bdev
1288 AC_DEFUN([LC_INVALIDATE_BDEV_2ARG],
1289 [AC_MSG_CHECKING([if invalidate_bdev has second argument])
1290 LB_LINUX_TRY_COMPILE([
1291 #include <linux/buffer_head.h>
1293 invalidate_bdev(NULL,0);
1295 AC_MSG_RESULT([yes])
1296 AC_DEFINE(HAVE_INVALIDATE_BDEV_2ARG, 1,
1297 [invalidate_bdev has second argument])
1303 # 2.6.23 have return type 'void' for unregister_blkdev
1304 AC_DEFUN([LC_UNREGISTER_BLKDEV_RETURN_INT],
1305 [AC_MSG_CHECKING([if unregister_blkdev return int])
1306 LB_LINUX_TRY_COMPILE([
1307 #include <linux/fs.h>
1309 int i = unregister_blkdev(0,NULL);
1311 AC_MSG_RESULT([yes])
1312 AC_DEFINE(HAVE_UNREGISTER_BLKDEV_RETURN_INT, 1,
1313 [unregister_blkdev return int])
1319 # 2.6.23 change .sendfile to .splice_read
1320 AC_DEFUN([LC_KERNEL_SPLICE_READ],
1321 [AC_MSG_CHECKING([if kernel has .splice_read])
1322 LB_LINUX_TRY_COMPILE([
1323 #include <linux/fs.h>
1325 struct file_operations file;
1327 file.splice_read = NULL;
1329 AC_MSG_RESULT([yes])
1330 AC_DEFINE(HAVE_KERNEL_SPLICE_READ, 1,
1331 [kernel has .slice_read])
1337 # 2.6.23 extract nfs export related data into exportfs.h
1338 AC_DEFUN([LC_HAVE_EXPORTFS_H],
1341 CFLAGS="$CFLAGS -I$LINUX_OBJ/include"
1342 AC_CHECK_HEADERS([linux/exportfs.h])
1347 # LC_VFS_INTENT_PATCHES
1349 # check if the kernel has the VFS intent patches
1350 AC_DEFUN([LC_VFS_INTENT_PATCHES],
1351 [AC_MSG_CHECKING([if the kernel has the VFS intent patches])
1352 LB_LINUX_TRY_COMPILE([
1353 #include <linux/fs.h>
1354 #include <linux/namei.h>
1356 struct nameidata nd;
1357 struct lookup_intent *it;
1360 intent_init(it, IT_OPEN);
1361 it->d.lustre.it_disposition = 0;
1362 it->d.lustre.it_data = NULL;
1364 AC_MSG_RESULT([yes])
1365 AC_DEFINE(HAVE_VFS_INTENT_PATCHES, 1, [VFS intent patches are applied])
1371 AC_DEFUN([LC_S_TIME_GRAN],
1372 [AC_MSG_CHECKING([if super block has s_time_gran member])
1373 LB_LINUX_TRY_COMPILE([
1374 #include <linux/fs.h>
1376 struct super_block sb;
1378 return sb.s_time_gran;
1380 AC_MSG_RESULT([yes])
1381 AC_DEFINE(HAVE_S_TIME_GRAN, 1, [super block has s_time_gran member])
1387 AC_DEFUN([LC_SB_TIME_GRAN],
1388 [AC_MSG_CHECKING([if kernel has old get_sb_time_gran])
1389 LB_LINUX_TRY_COMPILE([
1390 #include <linux/fs.h>
1392 return get_sb_time_gran(NULL);
1394 AC_MSG_RESULT([yes])
1395 AC_DEFINE(HAVE_SB_TIME_GRAN, 1, [kernel has old get_sb_time_gran])
1402 # ~2.6.12 merge patch from oracle to convert tree_lock from spinlock to rwlock
1403 AC_DEFUN([LC_RW_TREE_LOCK],
1404 [AC_MSG_CHECKING([if kernel has tree_lock as rwlock])
1405 tmp_flags="$EXTRA_KCFLAGS"
1406 EXTRA_KCFLAGS="-Werror"
1407 LB_LINUX_TRY_COMPILE([
1408 #include <linux/fs.h>
1410 struct address_space a;
1412 write_lock(&a.tree_lock);
1414 AC_MSG_RESULT([yes])
1415 AC_DEFINE(HAVE_RW_TREE_LOCK, 1, [kernel has tree_lock as rw_lock])
1419 EXTRA_KCFLAGS="$tmp_flags"
1422 AC_DEFUN([LC_CONST_ACL_SIZE],
1423 [AC_MSG_CHECKING([calc acl size])
1425 CFLAGS="$CFLAGS -I$LINUX/include -I$LINUX_OBJ/include -I$LINUX_OBJ/include2 $EXTRA_KCFLAGS"
1428 #include <linux/autoconf.h>
1429 #include <linux/types.h>
1432 #define __LINUX_POSIX_ACL_H
1434 # ifdef CONFIG_FS_POSIX_ACL
1435 # ifdef HAVE_XATTR_ACL
1436 # include <linux/xattr_acl.h>
1438 # ifdef HAVE_LINUX_POSIX_ACL_XATTR_H
1439 # include <linux/posix_acl_xattr.h>
1443 #include <lustre_acl.h>
1449 int size = mds_xattr_acl_size(LUSTRE_POSIX_ACL_MAX_ENTRIES);
1450 FILE *f = fopen("acl.size","w+");
1451 fprintf(f,"%d", size);
1458 acl_size=`cat acl.size`
1459 AC_MSG_RESULT([ACL size $acl_size])
1460 AC_DEFINE_UNQUOTED(XATTR_ACL_SIZE, AS_TR_SH([$acl_size]), [size of xattr acl])
1462 AC_ERROR([ACL size can't computed])
1468 # check for crypto API
1470 AC_DEFUN([LC_ASYNC_BLOCK_CIPHER],
1471 [AC_MSG_CHECKING([if kernel has block cipher support])
1472 LB_LINUX_TRY_COMPILE([
1473 #include <linux/err.h>
1474 #include <linux/crypto.h>
1476 struct crypto_blkcipher *tfm;
1477 tfm = crypto_alloc_blkcipher("aes", 0, 0 );
1479 AC_MSG_RESULT([yes])
1480 AC_DEFINE(HAVE_ASYNC_BLOCK_CIPHER, 1, [kernel has block cipher support])
1487 # check for struct hash_desc
1489 AC_DEFUN([LC_STRUCT_HASH_DESC],
1490 [AC_MSG_CHECKING([if kernel has struct hash_desc])
1491 LB_LINUX_TRY_COMPILE([
1492 #include <linux/err.h>
1493 #include <linux/crypto.h>
1495 struct hash_desc foo;
1497 AC_MSG_RESULT([yes])
1498 AC_DEFINE(HAVE_STRUCT_HASH_DESC, 1, [kernel has struct hash_desc])
1505 # check for struct blkcipher_desc
1507 AC_DEFUN([LC_STRUCT_BLKCIPHER_DESC],
1508 [AC_MSG_CHECKING([if kernel has struct blkcipher_desc])
1509 LB_LINUX_TRY_COMPILE([
1510 #include <linux/err.h>
1511 #include <linux/crypto.h>
1513 struct blkcipher_desc foo;
1515 AC_MSG_RESULT([yes])
1516 AC_DEFINE(HAVE_STRUCT_BLKCIPHER_DESC, 1, [kernel has struct blkcipher_desc])
1523 # check for FS_RENAME_DOES_D_MOVE flag
1525 AC_DEFUN([LC_FS_RENAME_DOES_D_MOVE],
1526 [AC_MSG_CHECKING([if kernel has FS_RENAME_DOES_D_MOVE flag])
1527 LB_LINUX_TRY_COMPILE([
1528 #include <linux/fs.h>
1530 int v = FS_RENAME_DOES_D_MOVE;
1532 AC_MSG_RESULT([yes])
1533 AC_DEFINE(HAVE_FS_RENAME_DOES_D_MOVE, 1, [kernel has FS_RENAME_DOES_D_MOVE flag])
1539 # vfs_symlink seems to have started out with 3 args until 2.6.7 where a
1540 # "mode" argument was added, but then again, in some later version it was
1542 AC_DEFUN([LC_4ARGS_VFS_SYMLINK],
1543 [AC_MSG_CHECKING([if vfs_symlink wants 4 args])
1544 LB_LINUX_TRY_COMPILE([
1545 #include <linux/fs.h>
1548 struct dentry *dentry;
1549 const char *oldname = NULL;
1552 vfs_symlink(dir, dentry, oldname, mode);
1555 AC_DEFINE(HAVE_4ARGS_VFS_SYMLINK, 1,
1556 [vfs_symlink wants 4 args])
1562 # Ensure stack size big than 8k in Lustre server
1563 AC_DEFUN([LC_STACK_SIZE],
1564 [AC_MSG_CHECKING([stack size big than 8k])
1565 LB_LINUX_TRY_COMPILE([
1566 #include <linux/thread_info.h>
1568 #if THREAD_SIZE < 8192
1569 #error "stack size < 8192"
1574 AC_MSG_ERROR([Lustre requires that Linux is configured with at least a 8KB stack.])
1581 # Lustre linux kernel checks
1583 AC_DEFUN([LC_PROG_LINUX],
1584 [LC_LUSTRE_VERSION_H
1585 if test x$enable_server = xyes ; then
1586 AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
1592 LC_CONFIG_LIBLUSTRE_RECOVERY
1593 LC_CONFIG_HEALTH_CHECK_WRITE
1594 LC_CONFIG_LRU_RESIZE
1599 LC_EXPORT_TRUNCATE_COMPLETE
1600 LC_EXPORT_TRUNCATE_RANGE
1601 LC_EXPORT_D_REHASH_COND
1602 LC_EXPORT___D_REHASH
1603 LC_EXPORT_D_MOVE_LOCKED
1605 LC_EXPORT_NODE_TO_CPUMASK
1607 LC_FUNC_RELEASEPAGE_WITH_INT
1610 LC_FUNC_REGISTER_CACHE
1611 LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
1612 LC_FUNC_DEV_SET_RDONLY
1613 LC_FUNC_FILEMAP_FDATAWRITE
1616 LC_STRUCT_FILE_OPS_UNLOCKED_IOCTL
1622 LC_POSIX_ACL_XATTR_H
1625 LC_STRUCT_INTENT_FILE
1630 LC_FUNC_MS_FLOCK_LOCK
1631 LC_FUNC_HAVE_CAN_SLEEP_ARG
1634 LC_COOKIE_FOLLOW_LINK
1638 LC_4ARGS_VFS_SYMLINK
1641 # does the kernel have VFS intent patches?
1642 LC_VFS_INTENT_PATCHES
1650 LC_EXPORT_SYNCHRONIZE_RCU
1656 LC_SECURITY_PLUG # for SLES10 SP2
1664 LC_STATFS_DENTRY_PARAM
1666 LC_INVALIDATEPAGE_RETURN_INT
1667 LC_UMOUNTBEGIN_HAS_VFSMOUNT
1669 LC_EXPORT_FILEMAP_FDATAWRITE_RANGE
1670 if test x$enable_server = xyes ; then
1671 LC_EXPORT_INVALIDATE_MAPPING_PAGES
1674 #2.6.18 + RHEL5 (fc6)
1680 LC_VFS_READDIR_U64_INO
1685 LC_CANCEL_DIRTY_PAGE
1687 # raid5-zerocopy patch
1691 LC_INVALIDATE_BDEV_2ARG
1692 LC_ASYNC_BLOCK_CIPHER
1694 LC_STRUCT_BLKCIPHER_DESC
1695 LC_FS_RENAME_DOES_D_MOVE
1697 LC_UNREGISTER_BLKDEV_RETURN_INT
1698 LC_KERNEL_SPLICE_READ
1703 # LC_CONFIG_CLIENT_SERVER
1705 # Build client/server sides of Lustre
1707 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
1708 [AC_MSG_CHECKING([whether to build Lustre server support])
1709 AC_ARG_ENABLE([server],
1710 AC_HELP_STRING([--disable-server],
1711 [disable Lustre server support]),
1712 [],[enable_server='yes'])
1713 AC_MSG_RESULT([$enable_server])
1715 AC_MSG_CHECKING([whether to build Lustre client support])
1716 AC_ARG_ENABLE([client],
1717 AC_HELP_STRING([--disable-client],
1718 [disable Lustre client support]),
1719 [],[enable_client='yes'])
1720 AC_MSG_RESULT([$enable_client])])
1723 # LC_CONFIG_LIBLUSTRE
1725 # whether to build liblustre
1727 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
1728 [AC_MSG_CHECKING([whether to build Lustre library])
1729 AC_ARG_ENABLE([liblustre],
1730 AC_HELP_STRING([--disable-liblustre],
1731 [disable building of Lustre library]),
1732 [],[enable_liblustre=$with_sysio])
1733 AC_MSG_RESULT([$enable_liblustre])
1734 # only build sysio if liblustre is built
1735 with_sysio="$enable_liblustre"
1737 AC_MSG_CHECKING([whether to build liblustre tests])
1738 AC_ARG_ENABLE([liblustre-tests],
1739 AC_HELP_STRING([--enable-liblustre-tests],
1740 [enable liblustre tests, if --disable-tests is used]),
1741 [],[enable_liblustre_tests=$enable_tests])
1742 if test x$enable_liblustre != xyes ; then
1743 enable_liblustre_tests='no'
1745 AC_MSG_RESULT([$enable_liblustre_tests])
1747 AC_MSG_CHECKING([whether to enable liblustre acl])
1748 AC_ARG_ENABLE([liblustre-acl],
1749 AC_HELP_STRING([--disable-liblustre-acl],
1750 [disable ACL support for liblustre]),
1751 [],[enable_liblustre_acl=yes])
1752 AC_MSG_RESULT([$enable_liblustre_acl])
1753 if test x$enable_liblustre_acl = xyes ; then
1754 AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
1760 AC_ARG_ENABLE(mpitests,
1761 AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
1762 [include mpi tests]),
1773 MPICC_WRAPPER=$enableval
1783 if test x$enable_mpitests != xno; then
1784 AC_MSG_CHECKING([whether mpitests can be built])
1792 MPI_Initialized(&flag);
1795 AC_MSG_RESULT([yes])
1802 AC_SUBST(MPICC_WRAPPER)
1804 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
1805 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
1808 LC_CONFIG_LIBLUSTRE_RECOVERY
1811 AC_DEFUN([LC_CONFIG_LRU_RESIZE],
1812 [AC_MSG_CHECKING([whether to enable lru self-adjusting])
1813 AC_ARG_ENABLE([lru_resize],
1814 AC_HELP_STRING([--enable-lru-resize],
1815 [enable lru resize support]),
1816 [],[enable_lru_resize='yes'])
1817 AC_MSG_RESULT([$enable_lru_resize])
1818 if test x$enable_lru_resize != xno; then
1819 AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])
1826 # whether to enable quota support global control
1828 AC_DEFUN([LC_CONFIG_QUOTA],
1829 [AC_ARG_ENABLE([quota],
1830 AC_HELP_STRING([--enable-quota],
1831 [enable quota support]),
1832 [],[enable_quota='yes'])
1835 # whether to enable quota support(kernel modules)
1836 AC_DEFUN([LC_QUOTA_MODULE],
1837 [if test x$enable_quota != xno; then
1838 LB_LINUX_CONFIG([QUOTA],[
1839 enable_quota_module='yes'
1840 AC_DEFINE(HAVE_QUOTA_SUPPORT, 1, [Enable quota support])
1842 enable_quota_module='no'
1843 AC_MSG_WARN([quota is not enabled because the kernel - lacks quota support])
1848 AC_DEFUN([LC_QUOTA],
1852 AC_CHECK_HEADER(sys/quota.h,
1853 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
1854 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
1857 AC_DEFUN([LC_QUOTA_READ],
1858 [AC_MSG_CHECKING([if kernel supports quota_read])
1859 LB_LINUX_TRY_COMPILE([
1860 #include <linux/fs.h>
1862 struct super_operations sp;
1863 void *i = (void *)sp.quota_read;
1865 AC_MSG_RESULT([yes])
1866 AC_DEFINE(KERNEL_SUPPORTS_QUOTA_READ, 1, [quota_read found])
1875 # whether to enable split support
1877 AC_DEFUN([LC_CONFIG_SPLIT],
1878 [AC_MSG_CHECKING([whether to enable split support])
1879 AC_ARG_ENABLE([split],
1880 AC_HELP_STRING([--enable-split],
1881 [enable split support]),
1882 [],[enable_split='no'])
1883 AC_MSG_RESULT([$enable_split])
1884 if test x$enable_split != xno; then
1885 AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
1890 # LC_COOKIE_FOLLOW_LINK
1892 # kernel 2.6.13+ ->follow_link returns a cookie
1895 AC_DEFUN([LC_COOKIE_FOLLOW_LINK],
1896 [AC_MSG_CHECKING([if inode_operations->follow_link returns a cookie])
1897 LB_LINUX_TRY_COMPILE([
1898 #include <linux/fs.h>
1899 #include <linux/namei.h>
1901 struct dentry dentry;
1902 struct nameidata nd;
1904 dentry.d_inode->i_op->put_link(&dentry, &nd, NULL);
1906 AC_DEFINE(HAVE_COOKIE_FOLLOW_LINK, 1, [inode_operations->follow_link returns a cookie])
1907 AC_MSG_RESULT([yes])
1916 # kernels prior than 2.6.0(?) have no RCU supported; in kernel 2.6.5(SUSE),
1917 # call_rcu takes three parameters.
1919 AC_DEFUN([LC_FUNC_RCU],
1920 [AC_MSG_CHECKING([if kernel have RCU supported])
1921 LB_LINUX_TRY_COMPILE([
1922 #include <linux/rcupdate.h>
1924 AC_DEFINE(HAVE_RCU, 1, [have RCU defined])
1925 AC_MSG_RESULT([yes])
1927 AC_MSG_CHECKING([if call_rcu takes three parameters])
1928 LB_LINUX_TRY_COMPILE([
1929 #include <linux/rcupdate.h>
1932 call_rcu(&rh, (void (*)(struct rcu_head *))1, NULL);
1934 AC_DEFINE(HAVE_CALL_RCU_PARAM, 1, [call_rcu takes three parameters])
1935 AC_MSG_RESULT([yes])
1946 # linux kernel have 64-bit limits support
1948 AC_DEFUN([LC_QUOTA64],
1949 [if test x$enable_quota_module = xyes -a x$enable_server = xyes ; then
1950 AC_MSG_CHECKING([if kernel has 64-bit quota limits support])
1951 LB_LINUX_TRY_COMPILE([
1952 #include <linux/kernel.h>
1953 #include <linux/fs.h>
1954 #include <linux/quotaio_v2.h>
1955 int versions[] = V2_INITQVERSIONS_R1;
1956 struct v2_disk_dqblk_r1 dqblk_r1;
1958 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
1959 AC_MSG_RESULT([yes])
1961 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
1962 AC_MSG_ERROR([You have got no 64-bit kernel quota support.])
1969 # LC_SECURITY_PLUG # for SLES10 SP2
1970 # check security plug in sles10 sp2 kernel
1971 AC_DEFUN([LC_SECURITY_PLUG],
1972 [AC_MSG_CHECKING([If kernel has security plug support])
1973 LB_LINUX_TRY_COMPILE([
1974 #include <linux/fs.h>
1976 struct dentry *dentry;
1977 struct vfsmount *mnt;
1978 struct iattr *iattr;
1980 notify_change(dentry, mnt, iattr);
1983 AC_DEFINE(HAVE_SECURITY_PLUG, 1,
1984 [SLES10 SP2 use extra parameter in vfs])
1990 AC_DEFUN([LC_PERCPU_COUNTER],
1991 [AC_MSG_CHECKING([if have struct percpu_counter defined])
1992 LB_LINUX_TRY_COMPILE([
1993 #include <linux/percpu_counter.h>
1995 AC_DEFINE(HAVE_PERCPU_COUNTER, 1, [percpu_counter found])
1996 AC_MSG_RESULT([yes])
1998 AC_MSG_CHECKING([if percpu_counter_inc takes the 2nd argument])
1999 LB_LINUX_TRY_COMPILE([
2000 #include <linux/percpu_counter.h>
2002 struct percpu_counter c;
2003 percpu_counter_init(&c, 0);
2005 AC_DEFINE(HAVE_PERCPU_2ND_ARG, 1, [percpu_counter_init has two
2007 AC_MSG_RESULT([yes])
2019 # If we have netlink.h, and nlmsg_new takes 2 args
2021 AC_DEFUN([LC_NETLINK],
2022 [AC_MSG_CHECKING([if netlink.h can be compiled])
2023 LB_LINUX_TRY_COMPILE([
2024 #include <net/netlink.h>
2026 AC_MSG_RESULT([yes])
2027 AC_DEFINE(HAVE_NETLINK, 1, [net/netlink.h found])
2029 AC_MSG_CHECKING([if nlmsg_new takes a 2nd argument])
2030 LB_LINUX_TRY_COMPILE([
2031 #include <net/netlink.h>
2033 nlmsg_new(100, GFP_KERNEL);
2035 AC_MSG_RESULT([yes])
2036 AC_DEFINE(HAVE_NETLINK_NL2, 1, [nlmsg_new takes 2 args])
2048 # other configure checks
2050 AC_DEFUN([LC_CONFIGURE],
2051 [LC_CONFIG_OBD_BUFFER_SIZE
2053 if test $target_cpu == "i686" -o $target_cpu == "x86_64"; then
2054 CFLAGS="$CFLAGS -Werror"
2057 # include/liblustre.h
2058 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
2060 # liblustre/llite_lib.h
2061 AC_CHECK_HEADERS([xtio.h file.h])
2064 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
2067 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
2068 AC_CHECK_FUNCS([inet_ntoa])
2070 # libsysio/src/readlink.c
2073 # lvfs/prng.c - depends on linux/types.h from liblustre/dir.c
2074 AC_CHECK_HEADERS([linux/random.h], [], [],
2075 [#ifdef HAVE_LINUX_TYPES_H
2076 # include <linux/types.h>
2081 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
2083 # check for -lz support
2087 [AC_CHECK_HEADERS([zlib.h],
2089 AC_DEFINE([HAVE_ADLER], 1,
2090 [support alder32 checksum type])],
2091 [AC_MSG_WARN([No zlib-devel package found,
2092 unable to use adler32 checksum])])],
2093 [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
2098 AC_ARG_ENABLE([mindf],
2099 AC_HELP_STRING([--enable-mindf],
2100 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
2102 if test "$enable_mindf" = "yes" ; then
2103 AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
2106 AC_ARG_ENABLE([fail_alloc],
2107 AC_HELP_STRING([--disable-fail-alloc],
2108 [disable randomly alloc failure]),
2109 [],[enable_fail_alloc=yes])
2110 AC_MSG_CHECKING([whether to randomly failing memory alloc])
2111 AC_MSG_RESULT([$enable_fail_alloc])
2112 if test x$enable_fail_alloc != xno ; then
2113 AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
2116 AC_ARG_ENABLE([invariants],
2117 AC_HELP_STRING([--enable-invariants],
2118 [enable invariant checking (cpu intensive)]),
2120 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
2121 AC_MSG_RESULT([$enable_invariants])
2122 if test x$enable_invariants = xyes ; then
2123 AC_DEFINE([INVARIANT_CHECK], 1, [enable invariant checking])
2126 AC_ARG_ENABLE([lu_ref],
2127 AC_HELP_STRING([--enable-lu_ref],
2128 [enable lu_ref reference tracking code]),
2130 AC_MSG_CHECKING([whether to track references with lu_ref])
2131 AC_MSG_RESULT([$enable_lu_ref])
2132 if test x$enable_lu_ref = xyes ; then
2133 AC_DEFINE([USE_LU_REF], 1, [enable lu_ref reference tracking code])
2141 # AM_CONDITIONALS for lustre
2143 AC_DEFUN([LC_CONDITIONALS],
2144 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
2145 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
2146 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
2147 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
2148 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
2149 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
2150 AM_CONDITIONAL(QUOTA, test x$enable_quota_module = xyes)
2151 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
2152 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
2153 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
2154 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
2155 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
2156 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
2157 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
2163 # files that should be generated with AC_OUTPUT
2165 AC_DEFUN([LC_CONFIG_FILES],
2169 lustre/autoconf/Makefile
2170 lustre/contrib/Makefile
2172 lustre/include/Makefile
2173 lustre/include/lustre_ver.h
2174 lustre/include/linux/Makefile
2175 lustre/include/lustre/Makefile
2176 lustre/kernel_patches/targets/2.6-vanilla.target
2177 lustre/kernel_patches/targets/2.6-rhel4.target
2178 lustre/kernel_patches/targets/2.6-rhel5.target
2179 lustre/kernel_patches/targets/2.6-fc5.target
2180 lustre/kernel_patches/targets/2.6-patchless.target
2181 lustre/kernel_patches/targets/2.6-sles10.target
2182 lustre/ldlm/Makefile
2184 lustre/fid/autoMakefile
2185 lustre/liblustre/Makefile
2186 lustre/liblustre/tests/Makefile
2187 lustre/liblustre/tests/mpi/Makefile
2188 lustre/llite/Makefile
2189 lustre/llite/autoMakefile
2190 lustre/lclient/Makefile
2192 lustre/lov/autoMakefile
2193 lustre/lvfs/Makefile
2194 lustre/lvfs/autoMakefile
2196 lustre/mdc/autoMakefile
2198 lustre/lmv/autoMakefile
2200 lustre/mds/autoMakefile
2202 lustre/mdt/autoMakefile
2204 lustre/cmm/autoMakefile
2206 lustre/mdd/autoMakefile
2208 lustre/fld/autoMakefile
2209 lustre/obdclass/Makefile
2210 lustre/obdclass/autoMakefile
2211 lustre/obdclass/linux/Makefile
2212 lustre/obdecho/Makefile
2213 lustre/obdecho/autoMakefile
2214 lustre/obdfilter/Makefile
2215 lustre/obdfilter/autoMakefile
2217 lustre/osc/autoMakefile
2219 lustre/ost/autoMakefile
2221 lustre/osd/autoMakefile
2223 lustre/mgc/autoMakefile
2225 lustre/mgs/autoMakefile
2226 lustre/ptlrpc/Makefile
2227 lustre/ptlrpc/autoMakefile
2228 lustre/ptlrpc/gss/Makefile
2229 lustre/ptlrpc/gss/autoMakefile
2230 lustre/quota/Makefile
2231 lustre/quota/autoMakefile
2232 lustre/scripts/Makefile
2233 lustre/tests/Makefile
2234 lustre/tests/mpi/Makefile
2235 lustre/utils/Makefile
2236 lustre/utils/gss/Makefile
2238 case $lb_target_os in
2240 AC_CONFIG_FILES([ lustre/obdclass/darwin/Makefile ])