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])
15 # lustre specific paths
17 AC_DEFUN([LC_PATH_DEFAULTS],
18 [# ptlrpc kernel build requires this
26 demodir='$(docdir)/demo'
29 pkgexampledir='${pkgdatadir}/examples'
30 AC_SUBST(pkgexampledir)
36 # is the target os supported?
38 AC_DEFUN([LC_TARGET_SUPPORTED],
52 # that ext3 is enabled in the kernel
54 AC_DEFUN([LC_CONFIG_EXT3],
55 [LB_LINUX_CONFIG([EXT3_FS],[],[
56 LB_LINUX_CONFIG([EXT3_FS_MODULE],[],[$2])
58 LB_LINUX_CONFIG([EXT3_FS_XATTR],[$1],[$3])
64 # If we have (and can build) fshooks.h
66 AC_DEFUN([LC_FSHOOKS],
67 [LB_CHECK_FILE([$LINUX/include/linux/fshooks.h],[
68 AC_MSG_CHECKING([if fshooks.h can be compiled])
69 LB_LINUX_TRY_COMPILE([
70 #include <linux/fshooks.h>
75 AC_MSG_WARN([You might have better luck with gcc 3.3.x.])
76 AC_MSG_WARN([You can set CC=gcc33 before running configure.])
77 AC_MSG_ERROR([Your compiler cannot build fshooks.h.])
88 # rh 2.4.18 has iobuf->dovary, but other kernels do not
90 AC_DEFUN([LC_STRUCT_KIOBUF],
91 [AC_MSG_CHECKING([if struct kiobuf has a dovary field])
92 LB_LINUX_TRY_COMPILE([
93 #include <linux/iobuf.h>
99 AC_DEFINE(HAVE_KIOBUF_DOVARY, 1, [struct kiobuf has a dovary field])
106 # LC_FUNC_COND_RESCHED
108 # cond_resched() was introduced in 2.4.20
110 AC_DEFUN([LC_FUNC_COND_RESCHED],
111 [AC_MSG_CHECKING([if kernel offers cond_resched])
112 LB_LINUX_TRY_COMPILE([
113 #include <linux/sched.h>
118 AC_DEFINE(HAVE_COND_RESCHED, 1, [cond_resched found])
125 # LC_FUNC_ZAP_PAGE_RANGE
127 # if zap_page_range() takes a vma arg
129 AC_DEFUN([LC_FUNC_ZAP_PAGE_RANGE],
130 [AC_MSG_CHECKING([if zap_page_range with vma parameter])
131 ZAP_PAGE_RANGE_VMA="`grep -c 'zap_page_range.*struct vm_area_struct' $LINUX/include/linux/mm.h`"
132 if test "$ZAP_PAGE_RANGE_VMA" != 0 ; then
133 AC_DEFINE(ZAP_PAGE_RANGE_VMA, 1, [zap_page_range with vma parameter])
143 # if proc_fs.h defines PDE()
145 AC_DEFUN([LC_FUNC_PDE],
146 [AC_MSG_CHECKING([if kernel defines PDE])
147 HAVE_PDE="`grep -c 'proc_dir_entry..PDE' $LINUX/include/linux/proc_fs.h`"
148 if test "$HAVE_PDE" != 0 ; then
149 AC_DEFINE(HAVE_PDE, 1, [the kernel defines PDE])
157 # LC_FUNC_FILEMAP_FDATASYNC
159 # if filemap_fdatasync() exists
161 AC_DEFUN([LC_FUNC_FILEMAP_FDATAWRITE],
162 [AC_MSG_CHECKING([whether filemap_fdatawrite() is defined])
163 LB_LINUX_TRY_COMPILE([
164 #include <linux/fs.h>
166 int (*foo)(struct address_space *)= filemap_fdatawrite;
169 AC_DEFINE(HAVE_FILEMAP_FDATAWRITE, 1, [filemap_fdatawrite() found])
178 # if direct_IO takes a struct file argument
180 AC_DEFUN([LC_FUNC_DIRECT_IO],
181 [AC_MSG_CHECKING([if kernel passes struct file to direct_IO])
182 HAVE_DIO_FILE="`grep -c 'direct_IO.*struct file' $LINUX/include/linux/fs.h`"
183 if test "$HAVE_DIO_FILE" != 0 ; then
184 AC_DEFINE(HAVE_DIO_FILE, 1, [the kernel passes struct file to direct_IO])
192 # LC_HEADER_MM_INLINE
194 # RHEL kernels define page_count in mm_inline.h
196 AC_DEFUN([LC_HEADER_MM_INLINE],
197 [AC_MSG_CHECKING([if kernel has mm_inline.h header])
198 LB_LINUX_TRY_COMPILE([
199 #include <linux/mm_inline.h>
202 #error mm_inline.h does not define page_count
206 AC_DEFINE(HAVE_MM_INLINE, 1, [mm_inline found])
215 # if inode->i_alloc_sem exists
217 AC_DEFUN([LC_STRUCT_INODE],
218 [AC_MSG_CHECKING([if struct inode has i_alloc_sem])
219 LB_LINUX_TRY_COMPILE([
220 #include <linux/fs.h>
221 #include <linux/version.h>
223 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,24))
224 #error "down_read_trylock broken before 2.4.24"
227 return (char *)&i.i_alloc_sem - (char *)&i;
230 AC_DEFINE(HAVE_I_ALLOC_SEM, 1, [struct inode has i_alloc_sem])
237 # LC_FUNC_REGISTER_CACHE
239 # if register_cache() is defined by kernel
241 AC_DEFUN([LC_FUNC_REGISTER_CACHE],
242 [AC_MSG_CHECKING([if kernel defines register_cache()])
243 LB_LINUX_TRY_COMPILE([
244 #include <linux/list.h>
245 #include <linux/cache_def.h>
247 struct cache_definition cache;
250 AC_DEFINE(HAVE_REGISTER_CACHE, 1, [register_cache found])
251 AC_MSG_CHECKING([if kernel expects return from cache shrink function])
252 HAVE_CACHE_RETURN_INT="`grep -c 'int.*shrink' $LINUX/include/linux/cache_def.h`"
253 if test "$HAVE_CACHE_RETURN_INT" != 0 ; then
254 AC_DEFINE(HAVE_CACHE_RETURN_INT, 1, [kernel expects return from shrink_cache])
265 # LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
267 # check for our patched grab_cache_page_nowait_gfp() function
269 AC_DEFUN([LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP],
270 [AC_MSG_CHECKING([if kernel defines grab_cache_page_nowait_gfp()])
271 HAVE_GCPN_GFP="`grep -c 'grab_cache_page_nowait_gfp' $LINUX/include/linux/pagemap.h`"
272 if test "$HAVE_GCPN_GFP" != 0 ; then
273 AC_DEFINE(HAVE_GRAB_CACHE_PAGE_NOWAIT_GFP, 1,
274 [kernel has grab_cache_page_nowait_gfp()])
282 # LC_FUNC_DEV_SET_RDONLY
284 # check for the old-style dev_set_rdonly which took an extra "devno" param
285 # and can only set a single device to discard writes at one time
287 AC_DEFUN([LC_FUNC_DEV_SET_RDONLY],
288 [AC_MSG_CHECKING([if kernel has new dev_set_rdonly])
289 LB_LINUX_TRY_COMPILE([
290 #include <linux/fs.h>
292 #ifndef HAVE_CLEAR_RDONLY_ON_PUT
293 #error needs to be patched by lustre kernel patches from Lustre version 1.4.3 or above.
297 AC_DEFINE(HAVE_DEV_SET_RDONLY, 1, [kernel has new dev_set_rdonly])
299 AC_MSG_RESULT([no, Linux kernel source needs to be patches by lustre
300 kernel patches from Lustre version 1.4.3 or above.])
305 # LC_CONFIG_BACKINGFS
307 # setup, check the backing filesystem
309 AC_DEFUN([LC_CONFIG_BACKINGFS],
313 if test x$with_ldiskfs = xno ; then
316 if test x$linux25$enable_server = xyesyes ; then
317 AC_MSG_ERROR([ldiskfs is required for 2.6-based servers.])
320 # --- Check that ext3 and ext3 xattr are enabled in the kernel
322 AC_MSG_ERROR([Lustre requires that ext3 is enabled in the kernel])
324 AC_MSG_WARN([Lustre requires that extended attributes for ext3 are enabled in the kernel])
325 AC_MSG_WARN([This build may fail.])
329 LB_DEFINE_LDISKFS_OPTIONS
332 AC_MSG_CHECKING([which backing filesystem to use])
333 AC_MSG_RESULT([$BACKINGFS])
340 # the pinger is temporary, until we have the recovery node in place
342 AC_DEFUN([LC_CONFIG_PINGER],
343 [AC_MSG_CHECKING([whether to enable pinger support])
344 AC_ARG_ENABLE([pinger],
345 AC_HELP_STRING([--disable-pinger],
346 [disable recovery pinger support]),
347 [],[enable_pinger='yes'])
348 AC_MSG_RESULT([$enable_pinger])
349 if test x$enable_pinger != xno ; then
350 AC_DEFINE(ENABLE_PINGER, 1, Use the Pinger)
357 # do checksum of bulk data between client and OST
359 AC_DEFUN([LC_CONFIG_CHECKSUM],
360 [AC_MSG_CHECKING([whether to enable data checksum support])
361 AC_ARG_ENABLE([checksum],
362 AC_HELP_STRING([--disable-checksum],
363 [disable data checksum support]),
364 [],[enable_checksum='yes'])
365 AC_MSG_RESULT([$enable_checksum])
366 if test x$enable_checksum != xno ; then
367 AC_DEFINE(ENABLE_CHECKSUM, 1, do data checksums)
372 # LC_CONFIG_HEALTH_CHECK_WRITE
374 # Turn off the actual write to the disk
376 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE],
377 [AC_MSG_CHECKING([whether to enable a write with the health check])
378 AC_ARG_ENABLE([health_write],
379 AC_HELP_STRING([--enable-health_write],
380 [enable disk writes when doing health check]),
381 [],[enable_health_write='no'])
382 AC_MSG_RESULT([$enable_health_write])
383 if test x$enable_health_write != xno ; then
384 AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, Write when Checking Health)
389 # LC_CONFIG_LIBLUSTRE_RECOVERY
391 AC_DEFUN([LC_CONFIG_LIBLUSTRE_RECOVERY],
392 [AC_MSG_CHECKING([whether to enable liblustre recovery support])
393 AC_ARG_ENABLE([liblustre-recovery],
394 AC_HELP_STRING([--disable-liblustre-recovery],
395 [disable liblustre recovery support]),
396 [],[enable_liblustre_recovery='yes'])
397 AC_MSG_RESULT([$enable_liblustre_recovery])
398 if test x$enable_liblustre_recovery != xno ; then
399 AC_DEFINE(ENABLE_LIBLUSTRE_RECOVERY, 1, Liblustre Can Recover)
404 # LC_CONFIG_OBD_BUFFER_SIZE
406 # the maximum buffer size of lctl ioctls
408 AC_DEFUN([LC_CONFIG_OBD_BUFFER_SIZE],
409 [AC_MSG_CHECKING([maximum OBD ioctl size])
410 AC_ARG_WITH([obd-buffer-size],
411 AC_HELP_STRING([--with-obd-buffer-size=[size]],
412 [set lctl ioctl maximum bytes (default=8192)]),
414 OBD_BUFFER_SIZE=$with_obd_buffer_size
418 AC_MSG_RESULT([$OBD_BUFFER_SIZE bytes])
419 AC_DEFINE_UNQUOTED(OBD_MAX_IOCTL_BUFFER, $OBD_BUFFER_SIZE, [IOCTL Buffer Size])
425 # AIX does not have statfs.f_namelen
427 AC_DEFUN([LC_STRUCT_STATFS],
428 [AC_MSG_CHECKING([if struct statfs has a f_namelen field])
429 LB_LINUX_TRY_COMPILE([
430 #include <linux/vfs.h>
436 AC_DEFINE(HAVE_STATFS_NAMELEN, 1, [struct statfs has a namelen field])
443 # LC_READLINK_SSIZE_T
445 AC_DEFUN([LC_READLINK_SSIZE_T],
446 [AC_MSG_CHECKING([if readlink returns ssize_t])
450 ssize_t readlink(const char *, char *, size_t);
453 AC_DEFINE(HAVE_POSIX_1003_READLINK, 1, [readlink returns ssize_t])
459 AC_DEFUN([LC_FUNC_PAGE_MAPPED],
460 [AC_MSG_CHECKING([if kernel offers page_mapped])
461 LB_LINUX_TRY_COMPILE([
462 #include <linux/mm.h>
467 AC_DEFINE(HAVE_PAGE_MAPPED, 1, [page_mapped found])
473 AC_DEFUN([LC_STRUCT_FILE_OPS_UNLOCKED_IOCTL],
474 [AC_MSG_CHECKING([if struct file_operations has an unlocked_ioctl field])
475 LB_LINUX_TRY_COMPILE([
476 #include <linux/fs.h>
478 struct file_operations fops;
479 &fops.unlocked_ioctl;
482 AC_DEFINE(HAVE_UNLOCKED_IOCTL, 1, [struct file_operations has an unlock ed_ioctl field])
488 AC_DEFUN([LC_FILEMAP_POPULATE],
489 [AC_MSG_CHECKING([for exported filemap_populate])
490 LB_LINUX_TRY_COMPILE([
491 #include <asm/page.h>
492 #include <linux/mm.h>
494 filemap_populate(NULL, 0, 0, __pgprot(0), 0, 0);
497 AC_DEFINE(HAVE_FILEMAP_POPULATE, 1, [Kernel exports filemap_populate])
503 AC_DEFUN([LC_D_ADD_UNIQUE],
504 [AC_MSG_CHECKING([for d_add_unique])
505 LB_LINUX_TRY_COMPILE([
506 #include <linux/dcache.h>
508 d_add_unique(NULL, NULL);
511 AC_DEFINE(HAVE_D_ADD_UNIQUE, 1, [Kernel has d_add_unique])
517 AC_DEFUN([LC_BIT_SPINLOCK_H],
518 [LB_CHECK_FILE([$LINUX/include/linux/bit_spinlock.h],[
519 AC_MSG_CHECKING([if bit_spinlock.h can be compiled])
520 LB_LINUX_TRY_COMPILE([
521 #include <asm/processor.h>
522 #include <linux/spinlock.h>
523 #include <linux/bit_spinlock.h>
526 AC_DEFINE(HAVE_BIT_SPINLOCK_H, 1, [Kernel has bit_spinlock.h])
537 # If we have xattr_acl.h
539 AC_DEFUN([LC_XATTR_ACL],
540 [LB_CHECK_FILE([$LINUX/include/linux/xattr_acl.h],[
541 AC_MSG_CHECKING([if xattr_acl.h can be compiled])
542 LB_LINUX_TRY_COMPILE([
543 #include <linux/xattr_acl.h>
546 AC_DEFINE(HAVE_XATTR_ACL, 1, [Kernel has xattr_acl])
554 AC_DEFUN([LC_STRUCT_INTENT_FILE],
555 [AC_MSG_CHECKING([if struct open_intent has a file field])
556 LB_LINUX_TRY_COMPILE([
557 #include <linux/fs.h>
558 #include <linux/namei.h>
560 struct open_intent intent;
564 AC_DEFINE(HAVE_FILE_IN_STRUCT_INTENT, 1, [struct open_intent has a file field])
571 AC_DEFUN([LC_POSIX_ACL_XATTR_H],
572 [LB_CHECK_FILE([$LINUX/include/linux/posix_acl_xattr.h],[
573 AC_MSG_CHECKING([if linux/posix_acl_xattr.h can be compiled])
574 LB_LINUX_TRY_COMPILE([
575 #include <linux/posix_acl_xattr.h>
578 AC_DEFINE(HAVE_LINUX_POSIX_ACL_XATTR_H, 1, [linux/posix_acl_xattr.h found])
591 # starting from 2.6.19 linux kernel exports __iget()
593 AC_DEFUN([LC_EXPORT___IGET],
594 [LB_CHECK_SYMBOL_EXPORT([__iget],
596 AC_DEFINE(HAVE_EXPORT___IGET, 1, [kernel exports __iget])
602 AC_DEFUN([LC_LUSTRE_VERSION_H],
603 [LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
604 rm -f "$LUSTRE/include/linux/lustre_version.h"
606 touch "$LUSTRE/include/linux/lustre_version.h"
607 if test x$enable_server = xyes ; then
608 AC_MSG_WARN([Unpatched kernel detected.])
609 AC_MSG_WARN([Lustre servers cannot be built with an unpatched kernel;])
610 AC_MSG_WARN([disabling server build])
616 AC_DEFUN([LC_FUNC_SET_FS_PWD],
617 [LB_CHECK_SYMBOL_EXPORT([set_fs_pwd],
619 AC_DEFINE(HAVE_SET_FS_PWD, 1, [set_fs_pwd is exported])
627 AC_DEFUN([LC_CAPA_CRYPTO],
628 [LB_LINUX_CONFIG_IM([CRYPTO],[],[
629 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])
631 LB_LINUX_CONFIG_IM([CRYPTO_HMAC],[],[
632 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])
634 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],[
635 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])
640 # LC_CONFIG_GSS_KEYRING (default enabled, if gss is enabled)
642 AC_DEFUN([LC_CONFIG_GSS_KEYRING],
643 [AC_MSG_CHECKING([whether to enable gss keyring backend])
644 AC_ARG_ENABLE([gss_keyring],
645 [AC_HELP_STRING([--disable-gss-keyring],
646 [disable gss keyring backend])],
647 [],[enable_gss_keyring='yes'])
648 AC_MSG_RESULT([$enable_gss_keyring])
650 if test x$enable_gss_keyring != xno; then
651 LB_LINUX_CONFIG_IM([KEYS],[],
652 [AC_MSG_ERROR([GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.])])
654 AC_CHECK_LIB([keyutils], [keyctl_search], [],
655 [AC_MSG_ERROR([libkeyutils is not found, which is required by gss keyring backend])],)
657 AC_DEFINE([HAVE_GSS_KEYRING], [1],
658 [Define this if you enable gss keyring backend])
662 m4_pattern_allow(AC_KERBEROS_V5)
665 # LC_CONFIG_GSS (default disabled)
667 # Build gss and related tools of Lustre. Currently both kernel and user space
668 # parts are depend on linux platform.
670 AC_DEFUN([LC_CONFIG_GSS],
671 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
673 [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
674 [],[enable_gss='no'])
675 AC_MSG_RESULT([$enable_gss])
677 if test x$enable_gss == xyes; then
678 LC_CONFIG_GSS_KEYRING
680 LB_LINUX_CONFIG_IM([CRYPTO_DES],[],
681 [AC_MSG_WARN([kernel DES support is recommended by using GSS.])])
682 LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
683 [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
684 LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
685 [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
686 LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
687 [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
688 LB_LINUX_CONFIG_IM([CRYPTO_ARC4],[],
689 [AC_MSG_WARN([kernel ARC4 support is recommended by using GSS.])])
692 dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
694 LB_LINUX_CONFIG_IM([CRYPTO_AES],[],
695 [AC_MSG_WARN([kernel AES support is recommended by using GSS.])])
697 AC_CHECK_LIB([gssapi], [gss_init_sec_context],
698 [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"],
699 [AC_MSG_ERROR([libgssapi is not found, which is required by GSS.])],)
701 AC_SUBST(GSSAPI_LIBS)
707 # LC_FUNC_MS_FLOCK_LOCK
709 # SLES9 kernel has MS_FLOCK_LOCK sb flag
711 AC_DEFUN([LC_FUNC_MS_FLOCK_LOCK],
712 [AC_MSG_CHECKING([if kernel has MS_FLOCK_LOCK sb flag])
713 LB_LINUX_TRY_COMPILE([
714 #include <linux/fs.h>
716 int flags = MS_FLOCK_LOCK;
718 AC_DEFINE(HAVE_MS_FLOCK_LOCK, 1,
719 [kernel has MS_FLOCK_LOCK flag])
727 # LC_FUNC_HAVE_CAN_SLEEP_ARG
729 # SLES9 kernel has third arg can_sleep
730 # in fs/locks.c: flock_lock_file_wait()
732 AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG],
733 [AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
734 LB_LINUX_TRY_COMPILE([
735 #include <linux/fs.h>
739 struct file_lock *file_lock;
740 flock_lock_file_wait(file, file_lock, cansleep);
742 AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1,
743 [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
753 # rhel4.2 kernel has f_op->flock field
755 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
756 [AC_MSG_CHECKING([if struct file_operations has flock field])
757 LB_LINUX_TRY_COMPILE([
758 #include <linux/fs.h>
760 struct file_operations ll_file_operations_flock;
761 ll_file_operations_flock.flock = NULL;
763 AC_DEFINE(HAVE_F_OP_FLOCK, 1,
764 [struct file_operations has flock field])
774 # task struct has p_pptr instead of parent
776 AC_DEFUN([LC_TASK_PPTR],
777 [AC_MSG_CHECKING([task p_pptr found])
778 LB_LINUX_TRY_COMPILE([
779 #include <linux/sched.h>
781 struct task_struct *p;
786 AC_DEFINE(HAVE_TASK_PPTR, 1, [task p_pptr found])
795 # rhel4.2 kernel has f_op->flock field
797 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
798 [AC_MSG_CHECKING([if struct file_operations has flock field])
799 LB_LINUX_TRY_COMPILE([
800 #include <linux/fs.h>
802 struct file_operations ll_file_operations_flock;
803 ll_file_operations_flock.flock = NULL;
805 AC_DEFINE(HAVE_F_OP_FLOCK, 1,
806 [struct file_operations has flock field])
814 # after 2.6.15 inode have i_mutex intead of i_sem
815 AC_DEFUN([LC_INODE_I_MUTEX],
816 [AC_MSG_CHECKING([use inode have i_mutex ])
817 LB_LINUX_TRY_COMPILE([
818 #include <linux/mutex.h>
819 #include <linux/fs.h>
823 mutex_unlock(&i.i_mutex);
826 AC_DEFINE(HAVE_INODE_I_MUTEX, 1,
827 [after 2.6.15 inode have i_mutex intead of i_sem])
835 # after 2.6.17 dquote use mutex instead if semaphore
836 AC_DEFUN([LC_DQUOTOFF_MUTEX],
837 [AC_MSG_CHECKING([use dqonoff_mutex])
838 LB_LINUX_TRY_COMPILE([
839 #include <linux/mutex.h>
840 #include <linux/fs.h>
841 #include <linux/quota.h>
843 struct quota_info dq;
845 mutex_unlock(&dq.dqonoff_mutex);
848 AC_DEFINE(HAVE_DQUOTOFF_MUTEX, 1,
849 [after 2.6.17 dquote use mutex instead if semaphore])
856 # LC_STATFS_DENTRY_PARAM
857 # starting from 2.6.18 linux kernel uses dentry instead of
858 # super_block for first vfs_statfs argument
860 AC_DEFUN([LC_STATFS_DENTRY_PARAM],
861 [AC_MSG_CHECKING([first vfs_statfs parameter is dentry])
862 LB_LINUX_TRY_COMPILE([
863 #include <linux/fs.h>
865 int vfs_statfs(struct dentry *, struct kstatfs *);
867 AC_DEFINE(HAVE_STATFS_DENTRY_PARAM, 1,
868 [first parameter of vfs_statfs is dentry])
877 # starting from 2.6.18 kernel don't export do_kern_mount
878 # and want to use vfs_kern_mount instead.
880 AC_DEFUN([LC_VFS_KERN_MOUNT],
881 [AC_MSG_CHECKING([vfs_kern_mount exist in kernel])
882 LB_LINUX_TRY_COMPILE([
883 #include <linux/mount.h>
885 vfs_kern_mount(NULL, 0, NULL, NULL);
887 AC_DEFINE(HAVE_VFS_KERN_MOUNT, 1,
888 [vfs_kern_mount exist in kernel])
896 # LC_INVALIDATEPAGE_RETURN_INT
897 # more 2.6 api changes. return type for the invalidatepage
898 # address_space_operation is 'void' in new kernels but 'int' in old
900 AC_DEFUN([LC_INVALIDATEPAGE_RETURN_INT],
901 [AC_MSG_CHECKING([invalidatepage has return int])
902 LB_LINUX_TRY_COMPILE([
903 #include <linux/buffer_head.h>
905 int rc = block_invalidatepage(NULL, 0);
908 AC_DEFINE(HAVE_INVALIDATEPAGE_RETURN_INT, 1,
909 [Define if return type of invalidatepage should be int])
915 # LC_UMOUNTBEGIN_HAS_VFSMOUNT
916 # more 2.6 API changes. 2.6.18 umount_begin has different parameters
917 AC_DEFUN([LC_UMOUNTBEGIN_HAS_VFSMOUNT],
918 [AC_MSG_CHECKING([if umount_begin needs vfsmount parameter instead of super_block])
919 tmp_flags="$EXTRA_KCFLAGS"
920 EXTRA_KCFLAGS="-Werror"
921 LB_LINUX_TRY_COMPILE([
922 #include <linux/fs.h>
925 static void cfg_umount_begin (struct vfsmount *v, int flags)
930 static struct super_operations cfg_super_operations = {
931 .umount_begin = cfg_umount_begin,
934 cfg_super_operations.umount_begin(NULL,0);
937 AC_DEFINE(HAVE_UMOUNTBEGIN_VFSMOUNT, 1,
938 [Define umount_begin need second argument])
942 EXTRA_KCFLAGS="$tmp_flags"
946 # inode don't have i_blksize field
947 AC_DEFUN([LC_INODE_BLKSIZE],
948 [AC_MSG_CHECKING([inode has i_blksize field])
949 LB_LINUX_TRY_COMPILE([
950 #include <linux/fs.h>
956 AC_DEFINE(HAVE_INODE_BLKSIZE, 1,
957 [struct inode has i_blksize field])
963 # LC_VFS_READDIR_U64_INO
964 # 2.6.19 use u64 for inode number instead of inode_t
965 AC_DEFUN([LC_VFS_READDIR_U64_INO],
966 [AC_MSG_CHECKING([check vfs_readdir need 64bit inode number])
967 tmp_flags="$EXTRA_KCFLAGS"
968 EXTRA_KCFLAGS="-Werror"
969 LB_LINUX_TRY_COMPILE([
970 #include <linux/fs.h>
971 int fillonedir(void * __buf, const char * name, int namlen, loff_t offset,
972 u64 ino, unsigned int d_type)
983 AC_DEFINE(HAVE_VFS_READDIR_U64_INO, 1,
984 [if vfs_readdir need 64bit inode number])
988 EXTRA_KCFLAGS="$tmp_flags"
991 # LC_GENERIC_FILE_WRITE
992 # 2.6.19 introduce do_sync_write instead of
994 AC_DEFUN([LC_GENERIC_FILE_WRITE],
995 [AC_MSG_CHECKING([use generic_file_write])
996 LB_LINUX_TRY_COMPILE([
997 #include <linux/fs.h>
999 int result = generic_file_read(NULL, NULL, 0, 0);
1002 AC_DEFINE(HAVE_GENERIC_FILE_WRITE, 1,
1003 [use generic_file_write])
1009 # LC_GENERIC_FILE_READ
1010 # 2.6.19 need to use do_sync_read instead of
1012 AC_DEFUN([LC_GENERIC_FILE_READ],
1013 [AC_MSG_CHECKING([use generic_file_read])
1014 LB_LINUX_TRY_COMPILE([
1015 #include <linux/fs.h>
1017 int result = generic_file_read(NULL, NULL, 0, 0);
1020 AC_DEFINE(HAVE_GENERIC_FILE_READ, 1,
1021 [use generic_file_read])
1028 # 2.6.18 don't export nr_pagecahe
1029 AC_DEFUN([LC_NR_PAGECACHE],
1030 [AC_MSG_CHECKING([kernel export nr_pagecache])
1031 LB_LINUX_TRY_COMPILE([
1032 #include <linux/pagemap.h>
1034 return atomic_read(&nr_pagecache);
1037 AC_DEFINE(HAVE_NR_PAGECACHE, 1,
1038 [is kernel export nr_pagecache])
1044 # LC_CANCEL_DIRTY_PAGE
1045 # 2.6.20 introduse cancel_dirty_page instead of
1047 AC_DEFUN([LC_CANCEL_DIRTY_PAGE],
1048 [AC_MSG_CHECKING([kernel has cancel_dirty_page])
1049 LB_LINUX_TRY_COMPILE([
1050 #include <linux/page-flags.h>
1052 cancel_dirty_page(NULL, 0);
1055 AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
1056 [kernel has cancel_dirty_page instead of clear_page_dirty])
1065 # In order to support raid5 zerocopy patch, we have to patch the kernel to make
1066 # it support constant page, which means the page won't be modified during the
1069 AC_DEFUN([LC_PAGE_CONSTANT],
1070 [AC_MSG_CHECKING([if kernel have PageConstant defined])
1071 LB_LINUX_TRY_COMPILE([
1072 #include <linux/page-flags.h>
1075 #error "Have no raid5 zcopy patch"
1079 AC_DEFINE(HAVE_PAGE_CONSTANT, 1, [kernel have PageConstant supported])
1085 # RHEL5 in FS-cache patch rename PG_checked flag
1087 AC_DEFUN([LC_PG_FS_MISC],
1088 [AC_MSG_CHECKING([kernel has PG_fs_misc])
1089 LB_LINUX_TRY_COMPILE([
1090 #include <linux/page-flags.h>
1093 #error PG_fs_misc not defined in kernel
1097 AC_DEFINE(HAVE_PG_FS_MISC, 1,
1098 [is kernel have PG_fs_misc])
1104 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE],
1105 [LB_CHECK_SYMBOL_EXPORT([truncate_complete_page],
1107 AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
1108 [kernel export truncate_complete_page])
1113 AC_DEFUN([LC_EXPORT_D_REHASH_COND],
1114 [LB_CHECK_SYMBOL_EXPORT([d_rehash_cond],
1116 AC_DEFINE(HAVE_D_REHASH_COND, 1,
1117 [d_rehash_cond is exported by the kernel])
1122 AC_DEFUN([LC_EXPORT___D_REHASH],
1123 [LB_CHECK_SYMBOL_EXPORT([__d_rehash],
1125 AC_DEFINE(HAVE___D_REHASH, 1,
1126 [__d_rehash is exported by the kernel])
1131 # The actual symbol exported varies among architectures, so we need
1132 # to check many symbols (but only in the current architecture.) No
1133 # matter what symbol is exported, the kernel #defines node_to_cpumask
1134 # to the appropriate function and that's what we use.
1135 AC_DEFUN([LC_EXPORT_NODE_TO_CPUMASK],
1137 LB_CHECK_SYMBOL_EXPORT([node_to_cpumask],
1138 [arch/$LINUX_ARCH/mm/numa.c],
1139 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1140 [node_to_cpumask is exported by
1141 the kernel])]) # x86_64
1142 LB_CHECK_SYMBOL_EXPORT([node_to_cpu_mask],
1143 [arch/$LINUX_ARCH/kernel/smpboot.c],
1144 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1145 [node_to_cpumask is exported by
1146 the kernel])]) # ia64
1147 LB_CHECK_SYMBOL_EXPORT([node_2_cpu_mask],
1148 [arch/$LINUX_ARCH/kernel/smpboot.c],
1149 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1150 [node_to_cpumask is exported by
1151 the kernel])]) # i386
1155 # LC_VFS_INTENT_PATCHES
1157 # check if the kernel has the VFS intent patches
1158 AC_DEFUN([LC_VFS_INTENT_PATCHES],
1159 [AC_MSG_CHECKING([if the kernel has the VFS intent patches])
1160 LB_LINUX_TRY_COMPILE([
1161 #include <linux/fs.h>
1162 #include <linux/namei.h>
1164 struct nameidata nd;
1165 struct lookup_intent *it;
1168 intent_init(it, IT_OPEN);
1169 it->d.lustre.it_disposition = 0;
1170 it->d.lustre.it_data = NULL;
1172 AC_MSG_RESULT([yes])
1173 AC_DEFINE(HAVE_VFS_INTENT_PATCHES, 1, [VFS intent patches are applied])
1182 # Lustre linux kernel checks
1184 AC_DEFUN([LC_PROG_LINUX],
1185 [ LC_LUSTRE_VERSION_H
1186 if test x$enable_server = xyes ; then
1191 LC_CONFIG_LIBLUSTRE_RECOVERY
1193 LC_CONFIG_HEALTH_CHECK_WRITE
1194 LC_CONFIG_LRU_RESIZE
1198 LC_EXPORT_TRUNCATE_COMPLETE
1199 LC_EXPORT_D_REHASH_COND
1200 LC_EXPORT___D_REHASH
1201 LC_EXPORT_NODE_TO_CPUMASK
1204 LC_FUNC_COND_RESCHED
1205 LC_FUNC_ZAP_PAGE_RANGE
1210 LC_FUNC_REGISTER_CACHE
1211 LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
1212 LC_FUNC_DEV_SET_RDONLY
1213 LC_FUNC_FILEMAP_FDATAWRITE
1216 LC_STRUCT_FILE_OPS_UNLOCKED_IOCTL
1221 LC_STRUCT_INTENT_FILE
1222 LC_POSIX_ACL_XATTR_H
1226 LC_FUNC_MS_FLOCK_LOCK
1227 LC_FUNC_HAVE_CAN_SLEEP_ARG
1230 LC_COOKIE_FOLLOW_LINK
1233 # does the kernel have VFS intent patches?
1234 LC_VFS_INTENT_PATCHES
1244 LC_STATFS_DENTRY_PARAM
1246 LC_INVALIDATEPAGE_RETURN_INT
1247 LC_UMOUNTBEGIN_HAS_VFSMOUNT
1249 #2.6.18 + RHEL5 (fc6)
1254 LC_VFS_READDIR_U64_INO
1255 LC_GENERIC_FILE_READ
1256 LC_GENERIC_FILE_WRITE
1259 LC_CANCEL_DIRTY_PAGE
1261 # raid5-zerocopy patch
1266 # LC_CONFIG_CLIENT_SERVER
1268 # Build client/server sides of Lustre
1270 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
1271 [AC_MSG_CHECKING([whether to build Lustre server support])
1272 AC_ARG_ENABLE([server],
1273 AC_HELP_STRING([--disable-server],
1274 [disable Lustre server support]),
1275 [],[enable_server='yes'])
1276 AC_MSG_RESULT([$enable_server])
1278 AC_MSG_CHECKING([whether to build Lustre client support])
1279 AC_ARG_ENABLE([client],
1280 AC_HELP_STRING([--disable-client],
1281 [disable Lustre client support]),
1282 [],[enable_client='yes'])
1283 AC_MSG_RESULT([$enable_client])])
1286 # LC_CONFIG_LIBLUSTRE
1288 # whether to build liblustre
1290 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
1291 [AC_MSG_CHECKING([whether to build Lustre library])
1292 AC_ARG_ENABLE([liblustre],
1293 AC_HELP_STRING([--disable-liblustre],
1294 [disable building of Lustre library]),
1295 [],[enable_liblustre=$with_sysio])
1296 AC_MSG_RESULT([$enable_liblustre])
1297 # only build sysio if liblustre is built
1298 with_sysio="$enable_liblustre"
1300 AC_MSG_CHECKING([whether to build liblustre tests])
1301 AC_ARG_ENABLE([liblustre-tests],
1302 AC_HELP_STRING([--enable-liblustre-tests],
1303 [enable liblustre tests, if --disable-tests is used]),
1304 [],[enable_liblustre_tests=$enable_tests])
1305 if test x$enable_liblustre != xyes ; then
1306 enable_liblustre_tests='no'
1308 AC_MSG_RESULT([$enable_liblustre_tests])
1310 AC_MSG_CHECKING([whether to build mpitests])
1311 AC_ARG_ENABLE([mpitests],
1312 AC_HELP_STRING([--enable-mpitests],
1313 [build liblustre mpi tests]),
1314 [],[enable_mpitests=no])
1315 AC_MSG_RESULT([$enable_mpitests])
1317 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
1318 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
1321 LC_CONFIG_LIBLUSTRE_RECOVERY
1324 AC_DEFUN([LC_CONFIG_LRU_RESIZE],
1325 [AC_MSG_CHECKING([whether to enable lru self-adjusting])
1326 AC_ARG_ENABLE([lru_resize],
1327 AC_HELP_STRING([--enable-lru-resize],
1328 [enable lru resize support]),
1329 [],[enable_lru_resize='yes'])
1330 AC_MSG_RESULT([$enable_lru_resize])
1331 if test x$enable_lru_resize != xno; then
1332 AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])
1339 # whether to enable quota support
1341 AC_DEFUN([LC_CONFIG_QUOTA],
1342 [AC_MSG_CHECKING([whether to disable quota support])
1343 AC_ARG_ENABLE([quota],
1344 AC_HELP_STRING([--disable-quota],
1345 [disable quota support]),
1346 [],[enable_quota='yes'])
1347 AC_MSG_RESULT([$enable_quota])
1348 if test x$linux25 != xyes; then
1351 if test x$enable_quota != xno; then
1352 AC_DEFINE(HAVE_QUOTA_SUPPORT, 1, [Enable quota support])
1359 # whether to enable split support
1361 AC_DEFUN([LC_CONFIG_SPLIT],
1362 [AC_MSG_CHECKING([whether to enable split support])
1363 AC_ARG_ENABLE([split],
1364 AC_HELP_STRING([--enable-split],
1365 [enable split support]),
1366 [],[enable_split='no'])
1367 AC_MSG_RESULT([$enable_split])
1368 if test x$enable_split != xno; then
1369 AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
1373 AC_DEFUN([LC_QUOTA_READ],
1374 [AC_MSG_CHECKING([if kernel supports quota_read])
1375 LB_LINUX_TRY_COMPILE([
1376 #include <linux/fs.h>
1378 struct super_operations sp;
1379 void *i = (void *)sp.quota_read;
1381 AC_MSG_RESULT([yes])
1382 AC_DEFINE(KERNEL_SUPPORTS_QUOTA_READ, 1, [quota_read found])
1389 # LC_COOKIE_FOLLOW_LINK
1391 # kernel 2.6.13+ ->follow_link returns a cookie
1394 AC_DEFUN([LC_COOKIE_FOLLOW_LINK],
1395 [AC_MSG_CHECKING([if inode_operations->follow_link returns a cookie])
1396 LB_LINUX_TRY_COMPILE([
1397 #include <linux/fs.h>
1398 #include <linux/namei.h>
1400 struct dentry dentry;
1401 struct nameidata nd;
1403 dentry.d_inode->i_op->put_link(&dentry, &nd, NULL);
1405 AC_DEFINE(HAVE_COOKIE_FOLLOW_LINK, 1, [inode_operations->follow_link returns a cookie])
1406 AC_MSG_RESULT([yes])
1415 # kernels prior than 2.6.0(?) have no RCU supported; in kernel 2.6.5(SUSE),
1416 # call_rcu takes three parameters.
1418 AC_DEFUN([LC_FUNC_RCU],
1419 [AC_MSG_CHECKING([if kernel have RCU supported])
1420 LB_LINUX_TRY_COMPILE([
1421 #include <linux/rcupdate.h>
1423 AC_DEFINE(HAVE_RCU, 1, [have RCU defined])
1424 AC_MSG_RESULT([yes])
1426 AC_MSG_CHECKING([if call_rcu takes three parameters])
1427 LB_LINUX_TRY_COMPILE([
1428 #include <linux/rcupdate.h>
1431 call_rcu(&rh, (void (*)(struct rcu_head *))1, NULL);
1433 AC_DEFINE(HAVE_CALL_RCU_PARAM, 1, [call_rcu takes three parameters])
1434 AC_MSG_RESULT([yes])
1446 # other configure checks
1448 AC_DEFUN([LC_CONFIGURE],
1449 [LC_CONFIG_OBD_BUFFER_SIZE
1451 # include/liblustre.h
1452 AC_CHECK_HEADERS([asm/page.h sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
1454 # include/lustre/lustre_user.h
1455 # See note there re: __ASM_X86_64_PROCESSOR_H
1456 AC_CHECK_HEADERS([linux/quota.h])
1458 # liblustre/llite_lib.h
1459 AC_CHECK_HEADERS([xtio.h file.h])
1462 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
1465 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
1466 AC_CHECK_FUNCS([inet_ntoa])
1468 # libsysio/src/readlink.c
1472 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
1475 AC_ARG_ENABLE([mindf],
1476 AC_HELP_STRING([--enable-mindf],
1477 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
1479 if test "$enable_mindf" = "yes" ; then
1480 AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
1483 AC_ARG_ENABLE([fail_alloc],
1484 AC_HELP_STRING([--disable-fail-alloc],
1485 [disable randomly alloc failure]),
1486 [],[enable_fail_alloc=yes])
1487 AC_MSG_CHECKING([whether to randomly failing memory alloc])
1488 AC_MSG_RESULT([$enable_fail_alloc])
1489 if test x$enable_fail_alloc != xno ; then
1490 AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
1498 # AM_CONDITIONALS for lustre
1500 AC_DEFUN([LC_CONDITIONALS],
1501 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
1502 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
1503 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
1504 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
1505 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
1506 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
1507 AM_CONDITIONAL(QUOTA, test x$enable_quota = xyes)
1508 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
1509 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
1510 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
1511 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
1512 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
1513 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
1514 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
1520 # files that should be generated with AC_OUTPUT
1522 AC_DEFUN([LC_CONFIG_FILES],
1526 lustre/autoconf/Makefile
1527 lustre/contrib/Makefile
1529 lustre/include/Makefile
1530 lustre/include/lustre_ver.h
1531 lustre/include/linux/Makefile
1532 lustre/include/lustre/Makefile
1533 lustre/kernel_patches/targets/2.6-suse.target
1534 lustre/kernel_patches/targets/2.6-vanilla.target
1535 lustre/kernel_patches/targets/2.6-rhel4.target
1536 lustre/kernel_patches/targets/2.6-rhel5.target
1537 lustre/kernel_patches/targets/2.6-fc5.target
1538 lustre/kernel_patches/targets/2.6-patchless.target
1539 lustre/kernel_patches/targets/2.6-sles10.target
1540 lustre/ldlm/Makefile
1542 lustre/fid/autoMakefile
1543 lustre/liblustre/Makefile
1544 lustre/liblustre/tests/Makefile
1545 lustre/llite/Makefile
1546 lustre/llite/autoMakefile
1548 lustre/lov/autoMakefile
1549 lustre/lvfs/Makefile
1550 lustre/lvfs/autoMakefile
1552 lustre/mdc/autoMakefile
1554 lustre/lmv/autoMakefile
1556 lustre/mds/autoMakefile
1558 lustre/mdt/autoMakefile
1560 lustre/cmm/autoMakefile
1562 lustre/mdd/autoMakefile
1564 lustre/fld/autoMakefile
1565 lustre/obdclass/Makefile
1566 lustre/obdclass/autoMakefile
1567 lustre/obdclass/linux/Makefile
1568 lustre/obdecho/Makefile
1569 lustre/obdecho/autoMakefile
1570 lustre/obdfilter/Makefile
1571 lustre/obdfilter/autoMakefile
1573 lustre/osc/autoMakefile
1575 lustre/ost/autoMakefile
1577 lustre/osd/autoMakefile
1579 lustre/mgc/autoMakefile
1581 lustre/mgs/autoMakefile
1582 lustre/ptlrpc/Makefile
1583 lustre/ptlrpc/autoMakefile
1584 lustre/ptlrpc/gss/Makefile
1585 lustre/ptlrpc/gss/autoMakefile
1586 lustre/quota/Makefile
1587 lustre/quota/autoMakefile
1588 lustre/scripts/Makefile
1589 lustre/scripts/version_tag.pl
1590 lustre/tests/Makefile
1591 lustre/utils/Makefile
1592 lustre/utils/gss/Makefile
1594 case $lb_target_os in
1596 AC_CONFIG_FILES([ lustre/obdclass/darwin/Makefile ])