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],
51 # Ensure stack size big than 8k in Lustre server (all kernels)
53 AC_DEFUN([LC_STACK_SIZE],
54 [AC_MSG_CHECKING([stack size big than 8k])
55 LB_LINUX_TRY_COMPILE([
56 #include <linux/thread_info.h>
58 #if THREAD_SIZE < 8192
59 #error "stack size < 8192"
64 AC_MSG_ERROR([Lustre requires that Linux is configured with at least a 8KB stack.])
69 # LC_FUNC_DEV_SET_RDONLY
71 # check for the old-style dev_set_rdonly which took an extra "devno" param
72 # and can only set a single device to discard writes at one time
74 AC_DEFUN([LC_FUNC_DEV_SET_RDONLY],
75 [AC_MSG_CHECKING([if kernel has new dev_set_rdonly])
76 LB_LINUX_TRY_COMPILE([
78 #include <linux/blkdev.h>
80 #ifndef HAVE_CLEAR_RDONLY_ON_PUT
81 #error needs to be patched by lustre kernel patches from Lustre version 1.4.3 or above.
85 AC_DEFINE(HAVE_DEV_SET_RDONLY, 1, [kernel has new dev_set_rdonly])
87 AC_MSG_ERROR([no, Linux kernel source needs to be patches by lustre
88 kernel patches from Lustre version 1.4.3 or above.])
95 # setup, check the backing filesystem
97 AC_DEFUN([LC_CONFIG_BACKINGFS],
101 if test x$with_ldiskfs = xno ; then
102 if test x$linux25$enable_server = xyesyes ; then
103 AC_MSG_ERROR([ldiskfs is required for 2.6-based servers.])
107 LB_DEFINE_LDISKFS_OPTIONS
110 AC_MSG_CHECKING([which backing filesystem to use])
111 AC_MSG_RESULT([$BACKINGFS])
118 # the pinger is temporary, until we have the recovery node in place
120 AC_DEFUN([LC_CONFIG_PINGER],
121 [AC_MSG_CHECKING([whether to enable pinger support])
122 AC_ARG_ENABLE([pinger],
123 AC_HELP_STRING([--disable-pinger],
124 [disable recovery pinger support]),
125 [],[enable_pinger='yes'])
126 AC_MSG_RESULT([$enable_pinger])
127 if test x$enable_pinger != xno ; then
128 AC_DEFINE(ENABLE_PINGER, 1, Use the Pinger)
135 # do checksum of bulk data between client and OST
137 AC_DEFUN([LC_CONFIG_CHECKSUM],
138 [AC_MSG_CHECKING([whether to enable data checksum support])
139 AC_ARG_ENABLE([checksum],
140 AC_HELP_STRING([--disable-checksum],
141 [disable data checksum support]),
142 [],[enable_checksum='yes'])
143 AC_MSG_RESULT([$enable_checksum])
144 if test x$enable_checksum != xno ; then
145 AC_DEFINE(ENABLE_CHECKSUM, 1, do data checksums)
150 # LC_HEADER_LDISKFS_XATTR
152 # CHAOS kernel-devel package will not include fs/ldiskfs/xattr.h
154 AC_DEFUN([LC_HEADER_LDISKFS_XATTR],
155 [AC_MSG_CHECKING([if ldiskfs has xattr.h header])
156 tmp_flags="$EXTRA_KCFLAGS"
157 EXTRA_KCFLAGS="-I$LINUX/fs -I$LDISKFS_DIR -I$LDISKFS_DIR/ldiskfs"
158 LB_LINUX_TRY_COMPILE([
159 #include <ldiskfs/xattr.h>
161 ldiskfs_xattr_get(NULL, 0, "", NULL, 0);
162 ldiskfs_xattr_set_handle(NULL, NULL, 0, "", NULL, 0, 0);
166 AC_DEFINE(HAVE_LDISKFS_XATTR_H, 1, [ldiskfs/xattr.h found])
170 EXTRA_KCFLAGS="$tmp_flags"
174 # LC_CONFIG_HEALTH_CHECK_WRITE
176 # Turn off the actual write to the disk
178 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE],
179 [AC_MSG_CHECKING([whether to enable a write with the health check])
180 AC_ARG_ENABLE([health_write],
181 AC_HELP_STRING([--enable-health_write],
182 [enable disk writes when doing health check]),
183 [],[enable_health_write='no'])
184 AC_MSG_RESULT([$enable_health_write])
185 if test x$enable_health_write != xno ; then
186 AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, Write when Checking Health)
191 # LC_CONFIG_LIBLUSTRE_RECOVERY
193 AC_DEFUN([LC_CONFIG_LIBLUSTRE_RECOVERY],
194 [AC_MSG_CHECKING([whether to enable liblustre recovery support])
195 AC_ARG_ENABLE([liblustre-recovery],
196 AC_HELP_STRING([--disable-liblustre-recovery],
197 [disable liblustre recovery support]),
198 [],[enable_liblustre_recovery='yes'])
199 AC_MSG_RESULT([$enable_liblustre_recovery])
200 if test x$enable_liblustre_recovery != xno ; then
201 AC_DEFINE(ENABLE_LIBLUSTRE_RECOVERY, 1, Liblustre Can Recover)
206 # LC_CONFIG_OBD_BUFFER_SIZE
208 # the maximum buffer size of lctl ioctls
210 AC_DEFUN([LC_CONFIG_OBD_BUFFER_SIZE],
211 [AC_MSG_CHECKING([maximum OBD ioctl size])
212 AC_ARG_WITH([obd-buffer-size],
213 AC_HELP_STRING([--with-obd-buffer-size=[size]],
214 [set lctl ioctl maximum bytes (default=8192)]),
216 OBD_BUFFER_SIZE=$with_obd_buffer_size
220 AC_MSG_RESULT([$OBD_BUFFER_SIZE bytes])
221 AC_DEFINE_UNQUOTED(OBD_MAX_IOCTL_BUFFER, $OBD_BUFFER_SIZE, [IOCTL Buffer Size])
227 # AIX does not have statfs.f_namelen
229 AC_DEFUN([LC_STRUCT_STATFS],
230 [AC_MSG_CHECKING([if struct statfs has a f_namelen field])
231 LB_LINUX_TRY_COMPILE([
232 #include <linux/vfs.h>
238 AC_DEFINE(HAVE_STATFS_NAMELEN, 1, [struct statfs has a namelen field])
245 # LC_READLINK_SSIZE_T
247 AC_DEFUN([LC_READLINK_SSIZE_T],
248 [AC_MSG_CHECKING([if readlink returns ssize_t])
252 ssize_t readlink(const char *, char *, size_t);
255 AC_DEFINE(HAVE_POSIX_1003_READLINK, 1, [readlink returns ssize_t])
262 # LC_FUNC_MS_FLOCK_LOCK
264 # 2.6.5 kernel has MS_FLOCK_LOCK sb flag
266 AC_DEFUN([LC_FUNC_MS_FLOCK_LOCK],
267 [AC_MSG_CHECKING([if kernel has MS_FLOCK_LOCK sb flag])
268 LB_LINUX_TRY_COMPILE([
269 #include <linux/fs.h>
271 int flags = MS_FLOCK_LOCK;
273 AC_DEFINE(HAVE_MS_FLOCK_LOCK, 1,
274 [kernel has MS_FLOCK_LOCK flag])
282 # LC_FUNC_HAVE_CAN_SLEEP_ARG
284 # 2.6.5 kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()
286 AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG],
287 [AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
288 LB_LINUX_TRY_COMPILE([
289 #include <linux/fs.h>
293 struct file_lock *file_lock;
294 flock_lock_file_wait(file, file_lock, cansleep);
296 AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1,
297 [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
305 # LC_FUNC_RELEASEPAGE_WITH_GFP
307 # 2.6.9 ->releasepage() takes a gfp_t arg
308 # This kernel defines gfp_t (HAS_GFP_T) but doesn't use it for this function,
309 # while others either don't have gfp_t or pass gfp_t as the parameter.
311 AC_DEFUN([LC_FUNC_RELEASEPAGE_WITH_GFP],
312 [AC_MSG_CHECKING([if releasepage has a gfp_t parameter])
313 RELEASEPAGE_WITH_GFP="$(grep -c 'releasepage.*gfp_t' $LINUX/include/linux/fs.h)"
314 if test "$RELEASEPAGE_WITH_GFP" != 0 ; then
315 AC_DEFINE(HAVE_RELEASEPAGE_WITH_GFP, 1,
316 [releasepage with gfp_t parameter])
324 # between 2.6.5 - 2.6.22 filemap_populate is exported in some kernels
326 AC_DEFUN([LC_FILEMAP_POPULATE],
327 [AC_MSG_CHECKING([for exported filemap_populate])
328 LB_LINUX_TRY_COMPILE([
329 #include <asm/page.h>
330 #include <linux/mm.h>
332 filemap_populate(NULL, 0, 0, __pgprot(0), 0, 0);
335 AC_DEFINE(HAVE_FILEMAP_POPULATE, 1, [Kernel exports filemap_populate])
344 AC_DEFUN([LC_D_ADD_UNIQUE],
345 [AC_MSG_CHECKING([for d_add_unique])
346 LB_LINUX_TRY_COMPILE([
347 #include <linux/dcache.h>
349 d_add_unique(NULL, NULL);
352 AC_DEFINE(HAVE_D_ADD_UNIQUE, 1, [Kernel has d_add_unique])
361 AC_DEFUN([LC_BIT_SPINLOCK_H],
362 [LB_CHECK_FILE([$LINUX/include/linux/bit_spinlock.h],[
363 AC_MSG_CHECKING([if bit_spinlock.h can be compiled])
364 LB_LINUX_TRY_COMPILE([
365 #include <asm/processor.h>
366 #include <linux/spinlock.h>
367 #include <linux/bit_spinlock.h>
370 AC_DEFINE(HAVE_BIT_SPINLOCK_H, 1, [Kernel has bit_spinlock.h])
379 # After 2.6.26 we no longer have xattr_acl.h
381 AC_DEFUN([LC_XATTR_ACL],
382 [LB_CHECK_FILE([$LINUX/include/linux/xattr_acl.h],[
383 AC_MSG_CHECKING([if xattr_acl.h can be compiled])
384 LB_LINUX_TRY_COMPILE([
385 #include <linux/xattr_acl.h>
388 AC_DEFINE(HAVE_XATTR_ACL, 1, [Kernel has xattr_acl])
400 AC_DEFUN([LC_STRUCT_INTENT_FILE],
401 [AC_MSG_CHECKING([if struct open_intent has a file field])
402 LB_LINUX_TRY_COMPILE([
403 #include <linux/fs.h>
404 #include <linux/namei.h>
406 struct open_intent intent;
410 AC_DEFINE(HAVE_FILE_IN_STRUCT_INTENT, 1, [struct open_intent has a file field])
418 # After 2.6.16 the xattr_acl API is removed, and posix_acl is used instead
420 AC_DEFUN([LC_POSIX_ACL_XATTR_H],
421 [LB_CHECK_FILE([$LINUX/include/linux/posix_acl_xattr.h],[
422 AC_MSG_CHECKING([if linux/posix_acl_xattr.h can be compiled])
423 LB_LINUX_TRY_COMPILE([
424 #include <linux/posix_acl_xattr.h>
427 AC_DEFINE(HAVE_LINUX_POSIX_ACL_XATTR_H, 1, [linux/posix_acl_xattr.h found])
440 # starting from 2.6.19 linux kernel exports __iget()
442 AC_DEFUN([LC_EXPORT___IGET],
443 [LB_CHECK_SYMBOL_EXPORT([__iget],
445 AC_DEFINE(HAVE_EXPORT___IGET, 1, [kernel exports __iget])
451 # only for Lustre-patched kernels
453 AC_DEFUN([LC_LUSTRE_VERSION_H],
454 [LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
455 rm -f "$LUSTRE/include/linux/lustre_version.h"
457 touch "$LUSTRE/include/linux/lustre_version.h"
458 if test x$enable_server = xyes ; then
459 AC_MSG_WARN([Unpatched kernel detected.])
460 AC_MSG_WARN([Lustre servers cannot be built with an unpatched kernel;])
461 AC_MSG_WARN([disabling server build])
470 AC_DEFUN([LC_CAPA_CRYPTO],
471 [LB_LINUX_CONFIG_IM([CRYPTO],[],[
472 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])
474 LB_LINUX_CONFIG_IM([CRYPTO_HMAC],[],[
475 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])
477 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],[
478 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])
483 # LC_CONFIG_RMTCLIENT
486 dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
488 AC_DEFUN([LC_CONFIG_RMTCLIENT],
489 [LB_LINUX_CONFIG_IM([CRYPTO_AES],[],[
490 AC_MSG_WARN([Lustre remote client require that CONFIG_CRYPTO_AES is enabled in your kernel.])
494 AC_DEFUN([LC_SUNRPC_CACHE],
495 [AC_MSG_CHECKING([if sunrpc struct cache_head uses kref])
496 LB_LINUX_TRY_COMPILE([
497 #include <linux/sunrpc/cache.h>
499 struct cache_head ch;
503 AC_DEFINE(HAVE_SUNRPC_CACHE_V2, 1, [sunrpc cache facility v2])
509 AC_DEFUN([LC_CONFIG_SUNRPC],
510 [LB_LINUX_CONFIG_IM([SUNRPC],[],
511 [AC_MSG_ERROR([kernel SUNRPC support is required by using GSS.])])
516 # LC_CONFIG_GSS_KEYRING (default enabled, if gss is enabled)
518 AC_DEFUN([LC_CONFIG_GSS_KEYRING],
519 [AC_MSG_CHECKING([whether to enable gss keyring backend])
520 AC_ARG_ENABLE([gss_keyring],
521 [AC_HELP_STRING([--disable-gss-keyring],
522 [disable gss keyring backend])],
523 [],[enable_gss_keyring='yes'])
524 AC_MSG_RESULT([$enable_gss_keyring])
526 if test x$enable_gss_keyring != xno; then
527 LB_LINUX_CONFIG_IM([KEYS],[],
528 [AC_MSG_ERROR([GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.])])
530 AC_CHECK_LIB([keyutils], [keyctl_search], [],
531 [AC_MSG_ERROR([libkeyutils is not found, which is required by gss keyring backend])],)
533 AC_DEFINE([HAVE_GSS_KEYRING], [1],
534 [Define this if you enable gss keyring backend])
539 # LC_CONFIG_GSS (default disabled)
541 # Build gss and related tools of Lustre. Currently both kernel and user space
542 # parts are depend on linux platform.
544 AC_DEFUN([LC_CONFIG_GSS],
545 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
547 [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
548 [],[enable_gss='no'])
549 AC_MSG_RESULT([$enable_gss])
551 if test x$enable_gss == xyes; then
552 LC_CONFIG_GSS_KEYRING
555 AC_DEFINE([HAVE_GSS], [1], [Define this if you enable gss])
557 LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
558 [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
559 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
560 [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
561 LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
562 [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
563 LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
564 [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
566 AC_CHECK_LIB([gssapi], [gss_init_sec_context],
567 [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"],
568 [AC_CHECK_LIB([gssglue], [gss_init_sec_context],
569 [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue"],
570 [AC_MSG_ERROR([libgssapi or libgssglue is not found, which is required by GSS.])])],)
572 AC_SUBST(GSSAPI_LIBS)
578 # LC_EXPORT_SYNCHRONIZE_RCU
579 # after 2.6.12 synchronize_rcu is preferred over synchronize_kernel
580 AC_DEFUN([LC_EXPORT_SYNCHRONIZE_RCU],
581 [LB_CHECK_SYMBOL_EXPORT([synchronize_rcu],
582 [kernel/rcupdate.c],[
583 AC_DEFINE(HAVE_SYNCHRONIZE_RCU, 1,
584 [in 2.6.12 synchronize_rcu preferred over synchronize_kernel])
590 # after 2.6.15 inode have i_mutex intead of i_sem
591 AC_DEFUN([LC_INODE_I_MUTEX],
592 [AC_MSG_CHECKING([if inode has i_mutex ])
593 LB_LINUX_TRY_COMPILE([
594 #include <linux/mutex.h>
595 #include <linux/fs.h>
600 mutex_unlock(&i.i_mutex);
603 AC_DEFINE(HAVE_INODE_I_MUTEX, 1,
604 [after 2.6.15 inode have i_mutex intead of i_sem])
611 # after 2.6.18 seq_file has lock intead of sem
612 AC_DEFUN([LC_SEQ_LOCK],
613 [AC_MSG_CHECKING([if struct seq_file has lock field])
614 LB_LINUX_TRY_COMPILE([
615 #include <linux/seq_file.h>
619 mutex_unlock(&seq.lock);
622 AC_DEFINE(HAVE_SEQ_LOCK, 1,
623 [after 2.6.18 seq_file has lock intead of sem])
630 # after 2.6.17 dquote use mutex instead if semaphore
631 AC_DEFUN([LC_DQUOTOFF_MUTEX],
632 [AC_MSG_CHECKING([use dqonoff_mutex])
633 LB_LINUX_TRY_COMPILE([
634 #include <linux/mutex.h>
635 #include <linux/fs.h>
636 #include <linux/quota.h>
638 struct quota_info dq;
640 mutex_unlock(&dq.dqonoff_mutex);
643 AC_DEFINE(HAVE_DQUOTOFF_MUTEX, 1,
644 [after 2.6.17 dquote use mutex instead if semaphore])
651 # LC_STATFS_DENTRY_PARAM
652 # starting from 2.6.18 linux kernel uses dentry instead of
653 # super_block for first vfs_statfs argument
655 AC_DEFUN([LC_STATFS_DENTRY_PARAM],
656 [AC_MSG_CHECKING([first vfs_statfs parameter is dentry])
657 LB_LINUX_TRY_COMPILE([
658 #include <linux/fs.h>
660 int vfs_statfs(struct dentry *, struct kstatfs *);
662 AC_DEFINE(HAVE_STATFS_DENTRY_PARAM, 1,
663 [first parameter of vfs_statfs is dentry])
672 # starting from 2.6.18 kernel don't export do_kern_mount
673 # and want to use vfs_kern_mount instead.
675 AC_DEFUN([LC_VFS_KERN_MOUNT],
676 [AC_MSG_CHECKING([vfs_kern_mount exist in kernel])
677 LB_LINUX_TRY_COMPILE([
678 #include <linux/mount.h>
680 vfs_kern_mount(NULL, 0, NULL, NULL);
682 AC_DEFINE(HAVE_VFS_KERN_MOUNT, 1,
683 [vfs_kern_mount exist in kernel])
691 # LC_INVALIDATEPAGE_RETURN_INT
692 # 2.6.17 changes return type for invalidatepage to 'void' from 'int'
694 AC_DEFUN([LC_INVALIDATEPAGE_RETURN_INT],
695 [AC_MSG_CHECKING([invalidatepage has return int])
696 LB_LINUX_TRY_COMPILE([
697 #include <linux/buffer_head.h>
699 int rc = block_invalidatepage(NULL, 0);
702 AC_DEFINE(HAVE_INVALIDATEPAGE_RETURN_INT, 1,
703 [Define if return type of invalidatepage should be int])
709 # LC_UMOUNTBEGIN_HAS_VFSMOUNT
710 # after 2.6.18 umount_begin has different parameters
711 AC_DEFUN([LC_UMOUNTBEGIN_HAS_VFSMOUNT],
712 [AC_MSG_CHECKING([if umount_begin needs vfsmount parameter instead of super_block])
713 tmp_flags="$EXTRA_KCFLAGS"
714 EXTRA_KCFLAGS="-Werror"
715 LB_LINUX_TRY_COMPILE([
716 #include <linux/fs.h>
719 static void cfg_umount_begin (struct vfsmount *v, int flags)
724 static struct super_operations cfg_super_operations = {
725 .umount_begin = cfg_umount_begin,
728 cfg_super_operations.umount_begin(NULL,0);
731 AC_DEFINE(HAVE_UMOUNTBEGIN_VFSMOUNT, 1,
732 [Define umount_begin need second argument])
736 EXTRA_KCFLAGS="$tmp_flags"
739 # inode have i_private field since 2.6.17
740 AC_DEFUN([LC_INODE_IPRIVATE],
741 [AC_MSG_CHECKING([if inode has a i_private field])
742 LB_LINUX_TRY_COMPILE([
743 #include <linux/fs.h>
749 AC_DEFINE(HAVE_INODE_IPRIVATE, 1,
750 [struct inode has i_private field])
757 # inode don't have i_blksize field
758 AC_DEFUN([LC_INODE_BLKSIZE],
759 [AC_MSG_CHECKING([inode has i_blksize field])
760 LB_LINUX_TRY_COMPILE([
761 #include <linux/fs.h>
767 AC_DEFINE(HAVE_INODE_BLKSIZE, 1,
768 [struct inode has i_blksize field])
774 # LC_VFS_READDIR_U64_INO
775 # 2.6.19 use u64 for inode number instead of inode_t
776 AC_DEFUN([LC_VFS_READDIR_U64_INO],
777 [AC_MSG_CHECKING([check vfs_readdir need 64bit inode number])
778 tmp_flags="$EXTRA_KCFLAGS"
779 EXTRA_KCFLAGS="-Werror"
780 LB_LINUX_TRY_COMPILE([
781 #include <linux/fs.h>
782 int fillonedir(void * __buf, const char * name, int namlen, loff_t offset,
783 u64 ino, unsigned int d_type)
794 AC_DEFINE(HAVE_VFS_READDIR_U64_INO, 1,
795 [if vfs_readdir need 64bit inode number])
799 EXTRA_KCFLAGS="$tmp_flags"
803 # 2.6.19 replaced writev with aio_write
804 AC_DEFUN([LC_FILE_WRITEV],
805 [AC_MSG_CHECKING([writev in fops])
806 LB_LINUX_TRY_COMPILE([
807 #include <linux/fs.h>
809 struct file_operations *fops = NULL;
813 AC_DEFINE(HAVE_FILE_WRITEV, 1,
820 # LC_GENERIC_FILE_READ
821 # 2.6.19 replaced readv with aio_read
822 AC_DEFUN([LC_FILE_READV],
823 [AC_MSG_CHECKING([readv in fops])
824 LB_LINUX_TRY_COMPILE([
825 #include <linux/fs.h>
827 struct file_operations *fops = NULL;
831 AC_DEFINE(HAVE_FILE_READV, 1,
839 # 2.6.18 don't export nr_pagecahe
840 AC_DEFUN([LC_NR_PAGECACHE],
841 [AC_MSG_CHECKING([kernel export nr_pagecache])
842 LB_LINUX_TRY_COMPILE([
843 #include <linux/pagemap.h>
845 return atomic_read(&nr_pagecache);
848 AC_DEFINE(HAVE_NR_PAGECACHE, 1,
849 [is kernel export nr_pagecache])
855 # LC_CANCEL_DIRTY_PAGE
856 # 2.6.20 introduse cancel_dirty_page instead of
858 AC_DEFUN([LC_CANCEL_DIRTY_PAGE],
859 [AC_MSG_CHECKING([kernel has cancel_dirty_page])
860 LB_LINUX_TRY_COMPILE([
861 #include <linux/mm.h>
862 #include <linux/page-flags.h>
864 /* tmp workaround for broken OFED 1.4.1 at SLES10 */
865 #if defined(CONFIG_SLE_VERSION) && CONFIG_SLE_VERSION == 10 && defined(_BACKPORT_LINUX_MM_H_)
866 #error badly implementation of cancel_dirty_pages
868 cancel_dirty_page(NULL, 0);
871 AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
872 [kernel has cancel_dirty_page instead of clear_page_dirty])
881 # In order to support raid5 zerocopy patch, we have to patch the kernel to make
882 # it support constant page, which means the page won't be modified during the
885 AC_DEFUN([LC_PAGE_CONSTANT],
886 [AC_MSG_CHECKING([if kernel have PageConstant defined])
887 LB_LINUX_TRY_COMPILE([
888 #include <linux/mm.h>
889 #include <linux/page-flags.h>
892 #error "Have no raid5 zcopy patch"
896 AC_DEFINE(HAVE_PAGE_CONSTANT, 1, [kernel have PageConstant supported])
902 # RHEL5 in FS-cache patch rename PG_checked flag into PG_fs_misc
903 AC_DEFUN([LC_PG_FS_MISC],
904 [AC_MSG_CHECKING([kernel has PG_fs_misc])
905 LB_LINUX_TRY_COMPILE([
906 #include <linux/mm.h>
907 #include <linux/page-flags.h>
910 #error PG_fs_misc not defined in kernel
914 AC_DEFINE(HAVE_PG_FS_MISC, 1,
915 [is kernel have PG_fs_misc])
921 # RHEL5 PageChecked and SetPageChecked defined
922 AC_DEFUN([LC_PAGE_CHECKED],
923 [AC_MSG_CHECKING([kernel has PageChecked and SetPageChecked])
924 LB_LINUX_TRY_COMPILE([
925 #include <linux/mm.h>
926 #include <linux/page-flags.h>
929 #error PageChecked not defined in kernel
931 #ifndef SetPageChecked
932 #error SetPageChecked not defined in kernel
936 AC_DEFINE(HAVE_PAGE_CHECKED, 1,
937 [does kernel have PageChecked and SetPageChecked])
943 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE],
944 [LB_CHECK_SYMBOL_EXPORT([truncate_complete_page],
946 AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
947 [kernel export truncate_complete_page])
952 AC_DEFUN([LC_EXPORT_TRUNCATE_RANGE],
953 [LB_CHECK_SYMBOL_EXPORT([truncate_inode_pages_range],
955 AC_DEFINE(HAVE_TRUNCATE_RANGE, 1,
956 [kernel export truncate_inode_pages_range])
961 AC_DEFUN([LC_EXPORT_D_REHASH_COND],
962 [LB_CHECK_SYMBOL_EXPORT([d_rehash_cond],
964 AC_DEFINE(HAVE_D_REHASH_COND, 1,
965 [d_rehash_cond is exported by the kernel])
970 AC_DEFUN([LC_EXPORT___D_REHASH],
971 [LB_CHECK_SYMBOL_EXPORT([__d_rehash],
973 AC_DEFINE(HAVE___D_REHASH, 1,
974 [__d_rehash is exported by the kernel])
979 AC_DEFUN([LC_EXPORT_D_MOVE_LOCKED],
980 [LB_CHECK_SYMBOL_EXPORT([d_move_locked],
982 AC_DEFINE(HAVE_D_MOVE_LOCKED, 1,
983 [d_move_locked is exported by the kernel])
988 AC_DEFUN([LC_EXPORT___D_MOVE],
989 [LB_CHECK_SYMBOL_EXPORT([__d_move],
991 AC_DEFINE(HAVE___D_MOVE, 1,
992 [__d_move is exported by the kernel])
998 # LC_EXPORT_INVALIDATE_MAPPING_PAGES
1000 # SLES9, RHEL4, RHEL5, vanilla 2.6.24 export invalidate_mapping_pages() but
1001 # SLES10 2.6.16 does not, for some reason. For filter cache invalidation.
1003 AC_DEFUN([LC_EXPORT_INVALIDATE_MAPPING_PAGES],
1004 [LB_CHECK_SYMBOL_EXPORT([invalidate_mapping_pages], [mm/truncate.c], [
1005 AC_DEFINE(HAVE_INVALIDATE_MAPPING_PAGES, 1,
1006 [exported invalidate_mapping_pages])],
1007 [LB_CHECK_SYMBOL_EXPORT([invalidate_inode_pages], [mm/truncate.c], [
1008 AC_DEFINE(HAVE_INVALIDATE_INODE_PAGES, 1,
1009 [exported invalidate_inode_pages])], [
1010 AC_MSG_ERROR([no way to invalidate pages])
1016 # LC_EXPORT_FILEMAP_FDATASYNC_RANGE
1018 # No standard kernels export this
1020 AC_DEFUN([LC_EXPORT_FILEMAP_FDATAWRITE_RANGE],
1021 [LB_CHECK_SYMBOL_EXPORT([filemap_fdatawrite_range],
1023 AC_DEFINE(HAVE_FILEMAP_FDATAWRITE_RANGE, 1,
1024 [filemap_fdatawrite_range is exported by the kernel])
1029 # The actual symbol exported varies among architectures, so we need
1030 # to check many symbols (but only in the current architecture.) No
1031 # matter what symbol is exported, the kernel #defines node_to_cpumask
1032 # to the appropriate function and that's what we use.
1033 AC_DEFUN([LC_EXPORT_NODE_TO_CPUMASK],
1034 [LB_CHECK_SYMBOL_EXPORT([node_to_cpumask],
1035 [arch/$LINUX_ARCH/mm/numa.c],
1036 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1037 [node_to_cpumask is exported by
1038 the kernel])]) # x86_64
1039 LB_CHECK_SYMBOL_EXPORT([node_to_cpu_mask],
1040 [arch/$LINUX_ARCH/kernel/smpboot.c],
1041 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1042 [node_to_cpumask is exported by
1043 the kernel])]) # ia64
1044 LB_CHECK_SYMBOL_EXPORT([node_2_cpu_mask],
1045 [arch/$LINUX_ARCH/kernel/smpboot.c],
1046 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1047 [node_to_cpumask is exported by
1048 the kernel])]) # i386
1051 # 2.6.22 lost second parameter for invalidate_bdev
1052 AC_DEFUN([LC_INVALIDATE_BDEV_2ARG],
1053 [AC_MSG_CHECKING([if invalidate_bdev has second argument])
1054 LB_LINUX_TRY_COMPILE([
1055 #include <linux/buffer_head.h>
1057 invalidate_bdev(NULL,0);
1059 AC_MSG_RESULT([yes])
1060 AC_DEFINE(HAVE_INVALIDATE_BDEV_2ARG, 1,
1061 [invalidate_bdev has second argument])
1067 # 2.6.23 have return type 'void' for unregister_blkdev
1068 AC_DEFUN([LC_UNREGISTER_BLKDEV_RETURN_INT],
1069 [AC_MSG_CHECKING([if unregister_blkdev return int])
1070 LB_LINUX_TRY_COMPILE([
1071 #include <linux/fs.h>
1073 int i = unregister_blkdev(0,NULL);
1075 AC_MSG_RESULT([yes])
1076 AC_DEFINE(HAVE_UNREGISTER_BLKDEV_RETURN_INT, 1,
1077 [unregister_blkdev return int])
1083 # 2.6.23 change .sendfile to .splice_read
1084 AC_DEFUN([LC_KERNEL_SPLICE_READ],
1085 [AC_MSG_CHECKING([if kernel has .splice_read])
1086 LB_LINUX_TRY_COMPILE([
1087 #include <linux/fs.h>
1089 struct file_operations file;
1091 file.splice_read = NULL;
1093 AC_MSG_RESULT([yes])
1094 AC_DEFINE(HAVE_KERNEL_SPLICE_READ, 1,
1095 [kernel has .slice_read])
1101 # 2.6.23 extract nfs export related data into exportfs.h
1102 AC_DEFUN([LC_HAVE_EXPORTFS_H],
1105 CFLAGS="$CFLAGS -I$LINUX_OBJ/include"
1106 AC_CHECK_HEADERS([linux/exportfs.h])
1111 # LC_VFS_INTENT_PATCHES
1113 # check if the kernel has the VFS intent patches
1114 AC_DEFUN([LC_VFS_INTENT_PATCHES],
1115 [AC_MSG_CHECKING([if the kernel has the VFS intent patches])
1116 LB_LINUX_TRY_COMPILE([
1117 #include <linux/fs.h>
1118 #include <linux/namei.h>
1120 struct nameidata nd;
1121 struct lookup_intent *it;
1124 intent_init(it, IT_OPEN);
1125 it->d.lustre.it_disposition = 0;
1126 it->d.lustre.it_data = NULL;
1128 AC_MSG_RESULT([yes])
1129 AC_DEFINE(HAVE_VFS_INTENT_PATCHES, 1, [VFS intent patches are applied])
1135 AC_DEFUN([LC_S_TIME_GRAN],
1136 [AC_MSG_CHECKING([if super block has s_time_gran member])
1137 LB_LINUX_TRY_COMPILE([
1138 #include <linux/fs.h>
1140 struct super_block sb;
1142 return sb.s_time_gran;
1144 AC_MSG_RESULT([yes])
1145 AC_DEFINE(HAVE_S_TIME_GRAN, 1, [super block has s_time_gran member])
1151 AC_DEFUN([LC_SB_TIME_GRAN],
1152 [AC_MSG_CHECKING([if kernel has old get_sb_time_gran])
1153 LB_LINUX_TRY_COMPILE([
1154 #include <linux/fs.h>
1156 return get_sb_time_gran(NULL);
1158 AC_MSG_RESULT([yes])
1159 AC_DEFINE(HAVE_SB_TIME_GRAN, 1, [kernel has old get_sb_time_gran])
1166 # LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
1168 # Check for our patched grab_cache_page_nowait_gfp() function
1169 # after 2.6.29 we can emulate this using add_to_page_cache_lru()
1171 AC_DEFUN([LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP],
1172 [LB_CHECK_SYMBOL_EXPORT([grab_cache_page_nowait_gfp],
1174 AC_DEFINE(HAVE_GRAB_CACHE_PAGE_NOWAIT_GFP, 1,
1175 [kernel exports grab_cache_page_nowait_gfp])
1177 [LB_CHECK_SYMBOL_EXPORT([add_to_page_cache_lru],
1179 AC_DEFINE(HAVE_ADD_TO_PAGE_CACHE_LRU, 1,
1180 [kernel exports add_to_page_cache_lru])
1186 # ~2.6.12 merge patch from oracle to convert tree_lock from spinlock to rwlock
1187 AC_DEFUN([LC_RW_TREE_LOCK],
1188 [AC_MSG_CHECKING([if kernel has tree_lock as rwlock])
1189 tmp_flags="$EXTRA_KCFLAGS"
1190 EXTRA_KCFLAGS="-Werror"
1191 LB_LINUX_TRY_COMPILE([
1192 #include <linux/fs.h>
1194 struct address_space a;
1196 write_lock(&a.tree_lock);
1198 AC_MSG_RESULT([yes])
1199 AC_DEFINE(HAVE_RW_TREE_LOCK, 1, [kernel has tree_lock as rw_lock])
1203 EXTRA_KCFLAGS="$tmp_flags"
1206 AC_DEFUN([LC_CONST_ACL_SIZE],
1207 [AC_MSG_CHECKING([calc acl size])
1209 CFLAGS="$CFLAGS -I$LINUX/include -I$LINUX_OBJ/include -I$LINUX_OBJ/include2 $EXTRA_KCFLAGS"
1212 #include <linux/autoconf.h>
1213 #include <linux/types.h>
1216 #define __LINUX_POSIX_ACL_H
1218 # ifdef CONFIG_FS_POSIX_ACL
1219 # ifdef HAVE_XATTR_ACL
1220 # include <linux/xattr_acl.h>
1222 # ifdef HAVE_LINUX_POSIX_ACL_XATTR_H
1223 # include <linux/posix_acl_xattr.h>
1227 #include <lustre_acl.h>
1233 int size = mds_xattr_acl_size(LUSTRE_POSIX_ACL_MAX_ENTRIES);
1234 FILE *f = fopen("acl.size","w+");
1235 fprintf(f,"%d", size);
1242 acl_size=`cat acl.size`
1243 AC_MSG_RESULT([ACL size $acl_size])
1244 AC_DEFINE_UNQUOTED(XATTR_ACL_SIZE, AS_TR_SH([$acl_size]), [size of xattr acl])
1246 AC_ERROR([ACL size can't computed])
1252 # check for crypto API
1254 AC_DEFUN([LC_ASYNC_BLOCK_CIPHER],
1255 [AC_MSG_CHECKING([if kernel has block cipher support])
1256 LB_LINUX_TRY_COMPILE([
1257 #include <linux/err.h>
1258 #include <linux/crypto.h>
1260 struct crypto_blkcipher *tfm;
1261 tfm = crypto_alloc_blkcipher("aes", 0, 0 );
1263 AC_MSG_RESULT([yes])
1264 AC_DEFINE(HAVE_ASYNC_BLOCK_CIPHER, 1, [kernel has block cipher support])
1271 # check for struct hash_desc
1273 AC_DEFUN([LC_STRUCT_HASH_DESC],
1274 [AC_MSG_CHECKING([if kernel has struct hash_desc])
1275 LB_LINUX_TRY_COMPILE([
1276 #include <linux/err.h>
1277 #include <linux/crypto.h>
1279 struct hash_desc foo;
1281 AC_MSG_RESULT([yes])
1282 AC_DEFINE(HAVE_STRUCT_HASH_DESC, 1, [kernel has struct hash_desc])
1289 # check for struct blkcipher_desc
1291 AC_DEFUN([LC_STRUCT_BLKCIPHER_DESC],
1292 [AC_MSG_CHECKING([if kernel has struct blkcipher_desc])
1293 LB_LINUX_TRY_COMPILE([
1294 #include <linux/err.h>
1295 #include <linux/crypto.h>
1297 struct blkcipher_desc foo;
1299 AC_MSG_RESULT([yes])
1300 AC_DEFINE(HAVE_STRUCT_BLKCIPHER_DESC, 1, [kernel has struct blkcipher_desc])
1307 # 2.6.19 check for FS_RENAME_DOES_D_MOVE flag
1309 AC_DEFUN([LC_FS_RENAME_DOES_D_MOVE],
1310 [AC_MSG_CHECKING([if kernel has FS_RENAME_DOES_D_MOVE flag])
1311 LB_LINUX_TRY_COMPILE([
1312 #include <linux/fs.h>
1314 int v = FS_RENAME_DOES_D_MOVE;
1316 AC_MSG_RESULT([yes])
1317 AC_DEFINE(HAVE_FS_RENAME_DOES_D_MOVE, 1, [kernel has FS_RENAME_DOES_D_MOVE flag])
1324 # LC_FUNC_F_OP_FLOCK
1326 # rhel4.2 kernel has f_op->flock field
1328 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
1329 [AC_MSG_CHECKING([if struct file_operations has flock field])
1330 LB_LINUX_TRY_COMPILE([
1331 #include <linux/fs.h>
1333 struct file_operations ll_file_operations_flock;
1334 ll_file_operations_flock.flock = NULL;
1336 AC_DEFINE(HAVE_F_OP_FLOCK, 1,
1337 [struct file_operations has flock field])
1338 AC_MSG_RESULT([yes])
1344 # vfs_symlink seems to have started out with 3 args until 2.6.7 where a
1345 # "mode" argument was added, but then again, in some later version it was
1347 AC_DEFUN([LC_4ARGS_VFS_SYMLINK],
1348 [AC_MSG_CHECKING([if vfs_symlink wants 4 args])
1349 LB_LINUX_TRY_COMPILE([
1350 #include <linux/fs.h>
1353 struct dentry *dentry;
1354 const char *oldname = NULL;
1357 vfs_symlink(dir, dentry, oldname, mode);
1360 AC_DEFINE(HAVE_4ARGS_VFS_SYMLINK, 1,
1361 [vfs_symlink wants 4 args])
1367 # 2.6.23 has new shrinker API
1368 AC_DEFUN([LC_REGISTER_SHRINKER],
1369 [LB_CHECK_SYMBOL_EXPORT([register_shrinker],
1371 AC_DEFINE(HAVE_REGISTER_SHRINKER, 1,
1372 [kernel exports register_shrinker])
1380 # If we have fiemap.h
1381 # after 2.6.27 use fiemap.h in include/linux
1383 AC_DEFUN([LC_LINUX_FIEMAP_H],
1384 [LB_CHECK_FILE([$LINUX/include/linux/fiemap.h],[
1385 AC_MSG_CHECKING([if fiemap.h can be compiled])
1386 LB_LINUX_TRY_COMPILE([
1387 #include <linux/fiemap.h>
1389 AC_MSG_RESULT([yes])
1390 AC_DEFINE(HAVE_LINUX_FIEMAP_H, 1, [Kernel has fiemap.h])
1398 # 2.6.17 super_block use s_vfs_rename_mutex instead of s_vfs_rename_sem
1399 AC_DEFUN([LC_VFS_RENAME_MUTEX],
1400 [AC_MSG_CHECKING([super_block has s_vfs_rename_mutex])
1401 LB_LINUX_TRY_COMPILE([
1402 #include <linux/fs.h>
1404 struct super_block sb;
1405 mutex_lock(&sb.s_vfs_rename_mutex);
1407 AC_DEFINE(HAVE_VFS_RENAME_MUTEX, 1,
1408 [super_block has s_vfs_rename_mutex])
1409 AC_MSG_RESULT([yes])
1418 # Lustre linux kernel checks
1420 AC_DEFUN([LC_PROG_LINUX],
1421 [LC_LUSTRE_VERSION_H
1422 if test x$enable_server = xyes ; then
1423 AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
1424 LC_FUNC_DEV_SET_RDONLY
1430 LC_CONFIG_LIBLUSTRE_RECOVERY
1431 LC_CONFIG_HEALTH_CHECK_WRITE
1432 LC_CONFIG_LRU_RESIZE
1436 LC_EXPORT_TRUNCATE_COMPLETE
1437 LC_EXPORT_TRUNCATE_RANGE
1438 LC_EXPORT_D_REHASH_COND
1439 LC_EXPORT___D_REHASH
1440 LC_EXPORT_D_MOVE_LOCKED
1442 LC_EXPORT_NODE_TO_CPUMASK
1444 LC_HEADER_LDISKFS_XATTR
1445 LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
1452 LC_POSIX_ACL_XATTR_H
1455 LC_STRUCT_INTENT_FILE
1460 LC_FUNC_MS_FLOCK_LOCK
1461 LC_FUNC_HAVE_CAN_SLEEP_ARG
1464 LC_COOKIE_FOLLOW_LINK
1468 LC_4ARGS_VFS_SYMLINK
1471 # does the kernel have VFS intent patches?
1472 LC_VFS_INTENT_PATCHES
1480 LC_EXPORT_SYNCHRONIZE_RCU
1486 LC_SECURITY_PLUG # for SLES10 SP2
1495 LC_STATFS_DENTRY_PARAM
1497 LC_INVALIDATEPAGE_RETURN_INT
1498 LC_UMOUNTBEGIN_HAS_VFSMOUNT
1500 LC_EXPORT_FILEMAP_FDATAWRITE_RANGE
1501 if test x$enable_server = xyes ; then
1502 LC_EXPORT_INVALIDATE_MAPPING_PAGES
1505 #2.6.18 + RHEL5 (fc6)
1511 LC_VFS_READDIR_U64_INO
1516 LC_CANCEL_DIRTY_PAGE
1518 # raid5-zerocopy patch
1522 LC_INVALIDATE_BDEV_2ARG
1523 LC_ASYNC_BLOCK_CIPHER
1525 LC_STRUCT_BLKCIPHER_DESC
1526 LC_FS_RENAME_DOES_D_MOVE
1528 LC_UNREGISTER_BLKDEV_RETURN_INT
1529 LC_KERNEL_SPLICE_READ
1534 # LC_CONFIG_CLIENT_SERVER
1536 # Build client/server sides of Lustre
1538 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
1539 [AC_MSG_CHECKING([whether to build Lustre server support])
1540 AC_ARG_ENABLE([server],
1541 AC_HELP_STRING([--disable-server],
1542 [disable Lustre server support]),
1543 [],[enable_server='yes'])
1544 AC_MSG_RESULT([$enable_server])
1546 AC_MSG_CHECKING([whether to build Lustre client support])
1547 AC_ARG_ENABLE([client],
1548 AC_HELP_STRING([--disable-client],
1549 [disable Lustre client support]),
1550 [],[enable_client='yes'])
1551 AC_MSG_RESULT([$enable_client])])
1554 # LC_CONFIG_LIBLUSTRE
1556 # whether to build liblustre
1558 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
1559 [AC_MSG_CHECKING([whether to build Lustre library])
1560 AC_ARG_ENABLE([liblustre],
1561 AC_HELP_STRING([--disable-liblustre],
1562 [disable building of Lustre library]),
1563 [],[enable_liblustre=$with_sysio])
1564 AC_MSG_RESULT([$enable_liblustre])
1565 # only build sysio if liblustre is built
1566 with_sysio="$enable_liblustre"
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'
1576 AC_MSG_RESULT([$enable_liblustre_tests])
1578 AC_MSG_CHECKING([whether to enable liblustre acl])
1579 AC_ARG_ENABLE([liblustre-acl],
1580 AC_HELP_STRING([--disable-liblustre-acl],
1581 [disable ACL support for liblustre]),
1582 [],[enable_liblustre_acl=yes])
1583 AC_MSG_RESULT([$enable_liblustre_acl])
1584 if test x$enable_liblustre_acl = xyes ; then
1585 AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
1591 AC_ARG_ENABLE(mpitests,
1592 AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
1593 [include mpi tests]),
1604 MPICC_WRAPPER=$enableval
1614 if test x$enable_mpitests != xno; then
1615 AC_MSG_CHECKING([whether mpitests can be built])
1623 MPI_Initialized(&flag);
1626 AC_MSG_RESULT([yes])
1633 AC_SUBST(MPICC_WRAPPER)
1635 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
1636 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
1639 LC_CONFIG_LIBLUSTRE_RECOVERY
1642 AC_DEFUN([LC_CONFIG_LRU_RESIZE],
1643 [AC_MSG_CHECKING([whether to enable lru self-adjusting])
1644 AC_ARG_ENABLE([lru_resize],
1645 AC_HELP_STRING([--enable-lru-resize],
1646 [enable lru resize support]),
1647 [],[enable_lru_resize='yes'])
1648 AC_MSG_RESULT([$enable_lru_resize])
1649 if test x$enable_lru_resize != xno; then
1650 AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])
1657 # whether to enable quota support global control
1659 AC_DEFUN([LC_CONFIG_QUOTA],
1660 [AC_ARG_ENABLE([quota],
1661 AC_HELP_STRING([--enable-quota],
1662 [enable quota support]),
1663 [],[enable_quota='yes'])
1666 # whether to enable quota support(kernel modules)
1667 AC_DEFUN([LC_QUOTA_MODULE],
1668 [if test x$enable_quota != xno; then
1669 LB_LINUX_CONFIG([QUOTA],[
1670 enable_quota_module='yes'
1671 AC_DEFINE(HAVE_QUOTA_SUPPORT, 1, [Enable quota support])
1673 enable_quota_module='no'
1674 AC_MSG_WARN([quota is not enabled because the kernel - lacks quota support])
1679 AC_DEFUN([LC_QUOTA],
1683 AC_CHECK_HEADER(sys/quota.h,
1684 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
1685 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
1688 AC_DEFUN([LC_QUOTA_READ],
1689 [AC_MSG_CHECKING([if kernel supports quota_read])
1690 LB_LINUX_TRY_COMPILE([
1691 #include <linux/fs.h>
1693 struct super_operations sp;
1694 void *i = (void *)sp.quota_read;
1696 AC_MSG_RESULT([yes])
1697 AC_DEFINE(KERNEL_SUPPORTS_QUOTA_READ, 1, [quota_read found])
1706 # whether to enable split support
1708 AC_DEFUN([LC_CONFIG_SPLIT],
1709 [AC_MSG_CHECKING([whether to enable split support])
1710 AC_ARG_ENABLE([split],
1711 AC_HELP_STRING([--enable-split],
1712 [enable split support]),
1713 [],[enable_split='no'])
1714 AC_MSG_RESULT([$enable_split])
1715 if test x$enable_split != xno; then
1716 AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
1721 # LC_COOKIE_FOLLOW_LINK
1723 # kernel 2.6.13+ ->follow_link returns a cookie
1726 AC_DEFUN([LC_COOKIE_FOLLOW_LINK],
1727 [AC_MSG_CHECKING([if inode_operations->follow_link returns a cookie])
1728 LB_LINUX_TRY_COMPILE([
1729 #include <linux/fs.h>
1730 #include <linux/namei.h>
1732 struct dentry dentry;
1733 struct nameidata nd;
1735 dentry.d_inode->i_op->put_link(&dentry, &nd, NULL);
1737 AC_DEFINE(HAVE_COOKIE_FOLLOW_LINK, 1, [inode_operations->follow_link returns a cookie])
1738 AC_MSG_RESULT([yes])
1747 # kernels prior than 2.6.0(?) have no RCU supported; in kernel 2.6.5(SUSE),
1748 # call_rcu takes three parameters.
1750 AC_DEFUN([LC_FUNC_RCU],
1751 [AC_MSG_CHECKING([if kernel have RCU supported])
1752 LB_LINUX_TRY_COMPILE([
1753 #include <linux/rcupdate.h>
1755 AC_DEFINE(HAVE_RCU, 1, [have RCU defined])
1756 AC_MSG_RESULT([yes])
1758 AC_MSG_CHECKING([if call_rcu takes three parameters])
1759 LB_LINUX_TRY_COMPILE([
1760 #include <linux/rcupdate.h>
1763 call_rcu(&rh, (void (*)(struct rcu_head *))1, NULL);
1765 AC_DEFINE(HAVE_CALL_RCU_PARAM, 1, [call_rcu takes three parameters])
1766 AC_MSG_RESULT([yes])
1777 # linux kernel have 64-bit limits support
1779 AC_DEFUN([LC_QUOTA64],
1780 [if test x$enable_quota_module = xyes -a x$enable_server = xyes ; then
1781 AC_MSG_CHECKING([if kernel has 64-bit quota limits support])
1782 LB_LINUX_TRY_COMPILE([
1783 #include <linux/kernel.h>
1784 #include <linux/fs.h>
1785 #include <linux/quotaio_v2.h>
1786 int versions[] = V2_INITQVERSIONS_R1;
1787 struct v2_disk_dqblk_r1 dqblk_r1;
1789 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
1790 AC_MSG_RESULT([yes])
1792 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
1793 AC_MSG_ERROR([You have got no 64-bit kernel quota support.])
1800 # LC_SECURITY_PLUG # for SLES10 SP2
1801 # check security plug in sles10 sp2 kernel
1802 AC_DEFUN([LC_SECURITY_PLUG],
1803 [AC_MSG_CHECKING([If kernel has security plug support])
1804 LB_LINUX_TRY_COMPILE([
1805 #include <linux/fs.h>
1807 struct dentry *dentry;
1808 struct vfsmount *mnt;
1809 struct iattr *iattr;
1811 notify_change(dentry, mnt, iattr);
1814 AC_DEFINE(HAVE_SECURITY_PLUG, 1,
1815 [SLES10 SP2 use extra parameter in vfs])
1821 AC_DEFUN([LC_PERCPU_COUNTER],
1822 [AC_MSG_CHECKING([if have struct percpu_counter defined])
1823 LB_LINUX_TRY_COMPILE([
1824 #include <linux/percpu_counter.h>
1826 AC_DEFINE(HAVE_PERCPU_COUNTER, 1, [percpu_counter found])
1827 AC_MSG_RESULT([yes])
1829 AC_MSG_CHECKING([if percpu_counter_inc takes the 2nd argument])
1830 LB_LINUX_TRY_COMPILE([
1831 #include <linux/percpu_counter.h>
1833 struct percpu_counter c;
1834 percpu_counter_init(&c, 0);
1836 AC_DEFINE(HAVE_PERCPU_2ND_ARG, 1, [percpu_counter_init has two
1838 AC_MSG_RESULT([yes])
1850 # If we have netlink.h, and nlmsg_new takes 2 args
1852 AC_DEFUN([LC_NETLINK],
1853 [AC_MSG_CHECKING([if netlink.h can be compiled])
1854 LB_LINUX_TRY_COMPILE([
1855 #include <net/netlink.h>
1857 AC_MSG_RESULT([yes])
1858 AC_DEFINE(HAVE_NETLINK, 1, [net/netlink.h found])
1860 AC_MSG_CHECKING([if nlmsg_new takes a 2nd argument])
1861 LB_LINUX_TRY_COMPILE([
1862 #include <net/netlink.h>
1864 nlmsg_new(100, GFP_KERNEL);
1866 AC_MSG_RESULT([yes])
1867 AC_DEFINE(HAVE_NETLINK_NL2, 1, [nlmsg_new takes 2 args])
1879 # other configure checks
1881 AC_DEFUN([LC_CONFIGURE],
1882 [LC_CONFIG_OBD_BUFFER_SIZE
1884 if test $target_cpu == "i686" -o $target_cpu == "x86_64"; then
1885 CFLAGS="$CFLAGS -Werror"
1888 # include/liblustre.h
1889 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
1891 # liblustre/llite_lib.h
1892 AC_CHECK_HEADERS([xtio.h file.h])
1895 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
1898 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
1899 AC_CHECK_FUNCS([inet_ntoa])
1901 # libsysio/src/readlink.c
1904 # lvfs/prng.c - depends on linux/types.h from liblustre/dir.c
1905 AC_CHECK_HEADERS([linux/random.h], [], [],
1906 [#ifdef HAVE_LINUX_TYPES_H
1907 # include <linux/types.h>
1912 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
1914 # check for -lz support
1918 [AC_CHECK_HEADERS([zlib.h],
1920 AC_DEFINE([HAVE_ADLER], 1,
1921 [support alder32 checksum type])],
1922 [AC_MSG_WARN([No zlib-devel package found,
1923 unable to use adler32 checksum])])],
1924 [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
1929 AC_ARG_ENABLE([mindf],
1930 AC_HELP_STRING([--enable-mindf],
1931 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
1933 if test "$enable_mindf" = "yes" ; then
1934 AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
1937 AC_ARG_ENABLE([fail_alloc],
1938 AC_HELP_STRING([--disable-fail-alloc],
1939 [disable randomly alloc failure]),
1940 [],[enable_fail_alloc=yes])
1941 AC_MSG_CHECKING([whether to randomly failing memory alloc])
1942 AC_MSG_RESULT([$enable_fail_alloc])
1943 if test x$enable_fail_alloc != xno ; then
1944 AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
1947 AC_ARG_ENABLE([invariants],
1948 AC_HELP_STRING([--enable-invariants],
1949 [enable invariant checking (cpu intensive)]),
1951 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
1952 AC_MSG_RESULT([$enable_invariants])
1953 if test x$enable_invariants = xyes ; then
1954 AC_DEFINE([INVARIANT_CHECK], 1, [enable invariant checking])
1957 AC_ARG_ENABLE([lu_ref],
1958 AC_HELP_STRING([--enable-lu_ref],
1959 [enable lu_ref reference tracking code]),
1961 AC_MSG_CHECKING([whether to track references with lu_ref])
1962 AC_MSG_RESULT([$enable_lu_ref])
1963 if test x$enable_lu_ref = xyes ; then
1964 AC_DEFINE([USE_LU_REF], 1, [enable lu_ref reference tracking code])
1972 # AM_CONDITIONALS for lustre
1974 AC_DEFUN([LC_CONDITIONALS],
1975 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
1976 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
1977 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
1978 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
1979 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
1980 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
1981 AM_CONDITIONAL(QUOTA, test x$enable_quota_module = xyes)
1982 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
1983 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
1984 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
1985 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
1986 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
1987 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
1988 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
1994 # files that should be generated with AC_OUTPUT
1996 AC_DEFUN([LC_CONFIG_FILES],
2000 lustre/autoconf/Makefile
2001 lustre/contrib/Makefile
2003 lustre/include/Makefile
2004 lustre/include/lustre_ver.h
2005 lustre/include/linux/Makefile
2006 lustre/include/lustre/Makefile
2007 lustre/kernel_patches/targets/2.6-vanilla.target
2008 lustre/kernel_patches/targets/2.6-rhel4.target
2009 lustre/kernel_patches/targets/2.6-rhel5.target
2010 lustre/kernel_patches/targets/2.6-fc5.target
2011 lustre/kernel_patches/targets/2.6-patchless.target
2012 lustre/kernel_patches/targets/2.6-sles10.target
2013 lustre/kernel_patches/targets/2.6-oel5.target
2014 lustre/ldlm/Makefile
2016 lustre/fid/autoMakefile
2017 lustre/liblustre/Makefile
2018 lustre/liblustre/tests/Makefile
2019 lustre/liblustre/tests/mpi/Makefile
2020 lustre/llite/Makefile
2021 lustre/llite/autoMakefile
2022 lustre/lclient/Makefile
2024 lustre/lov/autoMakefile
2025 lustre/lvfs/Makefile
2026 lustre/lvfs/autoMakefile
2028 lustre/mdc/autoMakefile
2030 lustre/lmv/autoMakefile
2032 lustre/mds/autoMakefile
2034 lustre/mdt/autoMakefile
2036 lustre/cmm/autoMakefile
2038 lustre/mdd/autoMakefile
2040 lustre/fld/autoMakefile
2041 lustre/obdclass/Makefile
2042 lustre/obdclass/autoMakefile
2043 lustre/obdclass/linux/Makefile
2044 lustre/obdecho/Makefile
2045 lustre/obdecho/autoMakefile
2046 lustre/obdfilter/Makefile
2047 lustre/obdfilter/autoMakefile
2049 lustre/osc/autoMakefile
2051 lustre/ost/autoMakefile
2053 lustre/osd/autoMakefile
2055 lustre/mgc/autoMakefile
2057 lustre/mgs/autoMakefile
2058 lustre/ptlrpc/Makefile
2059 lustre/ptlrpc/autoMakefile
2060 lustre/ptlrpc/gss/Makefile
2061 lustre/ptlrpc/gss/autoMakefile
2062 lustre/quota/Makefile
2063 lustre/quota/autoMakefile
2064 lustre/scripts/Makefile
2065 lustre/tests/Makefile
2066 lustre/tests/mpi/Makefile
2067 lustre/utils/Makefile
2068 lustre/utils/gss/Makefile
2070 case $lb_target_os in
2072 AC_CONFIG_FILES([ lustre/obdclass/darwin/Makefile ])