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.])
639 m4_pattern_allow(AC_KERBEROS_V5)
644 # Build gss and related tools of Lustre. Currently both kernel and user space
645 # parts are depend on linux platform.
647 AC_DEFUN([LC_CONFIG_GSS],
648 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
650 AC_HELP_STRING([--enable-gss], [enable gss/krb5 support]),
651 [],[enable_gss='no'])
652 AC_MSG_RESULT([$enable_gss])
654 if test x$enable_gss == xyes; then
655 LB_LINUX_CONFIG_IM([SUNRPC],[],[
656 AC_MSG_ERROR([GSS require that CONFIG_SUNRPC is enabled in your kernel.])
658 LB_LINUX_CONFIG_IM([CRYPTO_DES],[],[
659 AC_MSG_WARN([DES support is recommended by using GSS.])
661 LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],[
662 AC_MSG_WARN([MD5 support is recommended by using GSS.])
664 LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],[
665 AC_MSG_WARN([SHA256 support is recommended by using GSS.])
667 LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],[
668 AC_MSG_WARN([SHA512 support is recommended by using GSS.])
670 LB_LINUX_CONFIG_IM([CRYPTO_ARC4],[],[
671 AC_MSG_WARN([ARC4 support is recommended by using GSS.])
674 # AES symbol is uncertain (optimized & depend on arch)
677 AC_CHECK_LIB(gssapi, gss_init_sec_context, [
678 GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"
680 AC_MSG_ERROR([libgssapi is not found, consider --disable-gss.])
684 AC_SUBST(GSSAPI_LIBS)
689 # LC_FUNC_MS_FLOCK_LOCK
691 # SLES9 kernel has MS_FLOCK_LOCK sb flag
693 AC_DEFUN([LC_FUNC_MS_FLOCK_LOCK],
694 [AC_MSG_CHECKING([if kernel has MS_FLOCK_LOCK sb flag])
695 LB_LINUX_TRY_COMPILE([
696 #include <linux/fs.h>
698 int flags = MS_FLOCK_LOCK;
700 AC_DEFINE(HAVE_MS_FLOCK_LOCK, 1,
701 [kernel has MS_FLOCK_LOCK flag])
709 # LC_FUNC_HAVE_CAN_SLEEP_ARG
711 # SLES9 kernel has third arg can_sleep
712 # in fs/locks.c: flock_lock_file_wait()
714 AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG],
715 [AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
716 LB_LINUX_TRY_COMPILE([
717 #include <linux/fs.h>
721 struct file_lock *file_lock;
722 flock_lock_file_wait(file, file_lock, cansleep);
724 AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1,
725 [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
735 # rhel4.2 kernel has f_op->flock field
737 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
738 [AC_MSG_CHECKING([if struct file_operations has flock field])
739 LB_LINUX_TRY_COMPILE([
740 #include <linux/fs.h>
742 struct file_operations ll_file_operations_flock;
743 ll_file_operations_flock.flock = NULL;
745 AC_DEFINE(HAVE_F_OP_FLOCK, 1,
746 [struct file_operations has flock field])
756 # task struct has p_pptr instead of parent
758 AC_DEFUN([LC_TASK_PPTR],
759 [AC_MSG_CHECKING([task p_pptr found])
760 LB_LINUX_TRY_COMPILE([
761 #include <linux/sched.h>
763 struct task_struct *p;
768 AC_DEFINE(HAVE_TASK_PPTR, 1, [task p_pptr found])
777 # rhel4.2 kernel has f_op->flock field
779 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
780 [AC_MSG_CHECKING([if struct file_operations has flock field])
781 LB_LINUX_TRY_COMPILE([
782 #include <linux/fs.h>
784 struct file_operations ll_file_operations_flock;
785 ll_file_operations_flock.flock = NULL;
787 AC_DEFINE(HAVE_F_OP_FLOCK, 1,
788 [struct file_operations has flock field])
796 # after 2.6.15 inode have i_mutex intead of i_sem
797 AC_DEFUN([LC_INODE_I_MUTEX],
798 [AC_MSG_CHECKING([use inode have i_mutex ])
799 LB_LINUX_TRY_COMPILE([
800 #include <linux/mutex.h>
801 #include <linux/fs.h>
805 mutex_unlock(&i.i_mutex);
808 AC_DEFINE(HAVE_INODE_I_MUTEX, 1,
809 [after 2.6.15 inode have i_mutex intead of i_sem])
817 # after 2.6.17 dquote use mutex instead if semaphore
818 AC_DEFUN([LC_DQUOTOFF_MUTEX],
819 [AC_MSG_CHECKING([use dqonoff_mutex])
820 LB_LINUX_TRY_COMPILE([
821 #include <linux/mutex.h>
822 #include <linux/fs.h>
823 #include <linux/quota.h>
825 struct quota_info dq;
827 mutex_unlock(&dq.dqonoff_mutex);
830 AC_DEFINE(HAVE_DQUOTOFF_MUTEX, 1,
831 [after 2.6.17 dquote use mutex instead if semaphore])
838 # LC_STATFS_DENTRY_PARAM
839 # starting from 2.6.18 linux kernel uses dentry instead of
840 # super_block for first vfs_statfs argument
842 AC_DEFUN([LC_STATFS_DENTRY_PARAM],
843 [AC_MSG_CHECKING([first vfs_statfs parameter is dentry])
844 LB_LINUX_TRY_COMPILE([
845 #include <linux/fs.h>
847 int vfs_statfs(struct dentry *, struct kstatfs *);
849 AC_DEFINE(HAVE_STATFS_DENTRY_PARAM, 1,
850 [first parameter of vfs_statfs is dentry])
859 # starting from 2.6.18 kernel don't export do_kern_mount
860 # and want to use vfs_kern_mount instead.
862 AC_DEFUN([LC_VFS_KERN_MOUNT],
863 [AC_MSG_CHECKING([vfs_kern_mount exist in kernel])
864 LB_LINUX_TRY_COMPILE([
865 #include <linux/mount.h>
867 vfs_kern_mount(NULL, 0, NULL, NULL);
869 AC_DEFINE(HAVE_VFS_KERN_MOUNT, 1,
870 [vfs_kern_mount exist in kernel])
878 # LC_INVALIDATEPAGE_RETURN_INT
879 # more 2.6 api changes. return type for the invalidatepage
880 # address_space_operation is 'void' in new kernels but 'int' in old
882 AC_DEFUN([LC_INVALIDATEPAGE_RETURN_INT],
883 [AC_MSG_CHECKING([invalidatepage has return int])
884 LB_LINUX_TRY_COMPILE([
885 #include <linux/buffer_head.h>
887 int rc = block_invalidatepage(NULL, 0);
890 AC_DEFINE(HAVE_INVALIDATEPAGE_RETURN_INT, 1,
891 [Define if return type of invalidatepage should be int])
897 # LC_UMOUNTBEGIN_HAS_VFSMOUNT
898 # more 2.6 API changes. 2.6.18 umount_begin has different parameters
899 AC_DEFUN([LC_UMOUNTBEGIN_HAS_VFSMOUNT],
900 [AC_MSG_CHECKING([if umount_begin needs vfsmount parameter instead of super_block])
901 tmp_flags="$EXTRA_KCFLAGS"
902 EXTRA_KCFLAGS="-Werror"
903 LB_LINUX_TRY_COMPILE([
904 #include <linux/fs.h>
907 static void cfg_umount_begin (struct vfsmount *v, int flags)
912 static struct super_operations cfg_super_operations = {
913 .umount_begin = cfg_umount_begin,
916 cfg_super_operations.umount_begin(NULL,0);
919 AC_DEFINE(HAVE_UMOUNTBEGIN_VFSMOUNT, 1,
920 [Define umount_begin need second argument])
924 EXTRA_KCFLAGS="$tmp_flags"
928 # inode don't have i_blksize field
929 AC_DEFUN([LC_INODE_BLKSIZE],
930 [AC_MSG_CHECKING([inode has i_blksize field])
931 LB_LINUX_TRY_COMPILE([
932 #include <linux/fs.h>
938 AC_DEFINE(HAVE_INODE_BLKSIZE, 1,
939 [struct inode has i_blksize field])
945 # LC_VFS_READDIR_U64_INO
946 # 2.6.19 use u64 for inode number instead of inode_t
947 AC_DEFUN([LC_VFS_READDIR_U64_INO],
948 [AC_MSG_CHECKING([check vfs_readdir need 64bit inode number])
949 tmp_flags="$EXTRA_KCFLAGS"
950 EXTRA_KCFLAGS="-Werror"
951 LB_LINUX_TRY_COMPILE([
952 #include <linux/fs.h>
953 int fillonedir(void * __buf, const char * name, int namlen, loff_t offset,
954 u64 ino, unsigned int d_type)
965 AC_DEFINE(HAVE_VFS_READDIR_U64_INO, 1,
966 [if vfs_readdir need 64bit inode number])
970 EXTRA_KCFLAGS="$tmp_flags"
973 # LC_GENERIC_FILE_WRITE
974 # 2.6.19 introduce do_sync_write instead of
976 AC_DEFUN([LC_GENERIC_FILE_WRITE],
977 [AC_MSG_CHECKING([use generic_file_write])
978 LB_LINUX_TRY_COMPILE([
979 #include <linux/fs.h>
981 int result = generic_file_read(NULL, NULL, 0, 0);
984 AC_DEFINE(HAVE_GENERIC_FILE_WRITE, 1,
985 [use generic_file_write])
991 # LC_GENERIC_FILE_READ
992 # 2.6.19 need to use do_sync_read instead of
994 AC_DEFUN([LC_GENERIC_FILE_READ],
995 [AC_MSG_CHECKING([use generic_file_read])
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_READ, 1,
1003 [use generic_file_read])
1010 # 2.6.18 don't export nr_pagecahe
1011 AC_DEFUN([LC_NR_PAGECACHE],
1012 [AC_MSG_CHECKING([kernel export nr_pagecache])
1013 LB_LINUX_TRY_COMPILE([
1014 #include <linux/pagemap.h>
1016 return atomic_read(&nr_pagecache);
1019 AC_DEFINE(HAVE_NR_PAGECACHE, 1,
1020 [is kernel export nr_pagecache])
1026 # LC_CANCEL_DIRTY_PAGE
1027 # 2.6.20 introduse cancel_dirty_page instead of
1029 AC_DEFUN([LC_CANCEL_DIRTY_PAGE],
1030 [AC_MSG_CHECKING([kernel has cancel_dirty_page])
1031 LB_LINUX_TRY_COMPILE([
1032 #include <linux/page-flags.h>
1034 cancel_dirty_page(NULL, 0);
1037 AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
1038 [kernel has cancel_dirty_page instead of clear_page_dirty])
1047 # In order to support raid5 zerocopy patch, we have to patch the kernel to make
1048 # it support constant page, which means the page won't be modified during the
1051 AC_DEFUN([LC_PAGE_CONSTANT],
1052 [AC_MSG_CHECKING([if kernel have PageConstant defined])
1053 LB_LINUX_TRY_COMPILE([
1054 #include <linux/page-flags.h>
1057 #error "Have no raid5 zcopy patch"
1061 AC_DEFINE(HAVE_PAGE_CONSTANT, 1, [kernel have PageConstant supported])
1067 # RHEL5 in FS-cache patch rename PG_checked flag
1069 AC_DEFUN([LC_PG_FS_MISC],
1070 [AC_MSG_CHECKING([kernel has PG_fs_misc])
1071 LB_LINUX_TRY_COMPILE([
1072 #include <linux/page-flags.h>
1075 #error PG_fs_misc not defined in kernel
1079 AC_DEFINE(HAVE_PG_FS_MISC, 1,
1080 [is kernel have PG_fs_misc])
1086 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE],
1087 [LB_CHECK_SYMBOL_EXPORT([truncate_complete_page],
1089 AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
1090 [kernel export truncate_complete_page])
1095 AC_DEFUN([LC_EXPORT_D_REHASH_COND],
1096 [LB_CHECK_SYMBOL_EXPORT([d_rehash_cond],
1098 AC_DEFINE(HAVE_D_REHASH_COND, 1,
1099 [d_rehash_cond is exported by the kernel])
1104 AC_DEFUN([LC_EXPORT___D_REHASH],
1105 [LB_CHECK_SYMBOL_EXPORT([__d_rehash],
1107 AC_DEFINE(HAVE___D_REHASH, 1,
1108 [__d_rehash is exported by the kernel])
1113 # The actual symbol exported varies among architectures, so we need
1114 # to check many symbols (but only in the current architecture.) No
1115 # matter what symbol is exported, the kernel #defines node_to_cpumask
1116 # to the appropriate function and that's what we use.
1117 AC_DEFUN([LC_EXPORT_NODE_TO_CPUMASK],
1119 LB_CHECK_SYMBOL_EXPORT([node_to_cpumask],
1120 [arch/$LINUX_ARCH/mm/numa.c],
1121 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1122 [node_to_cpumask is exported by
1123 the kernel])]) # x86_64
1124 LB_CHECK_SYMBOL_EXPORT([node_to_cpu_mask],
1125 [arch/$LINUX_ARCH/kernel/smpboot.c],
1126 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1127 [node_to_cpumask is exported by
1128 the kernel])]) # ia64
1129 LB_CHECK_SYMBOL_EXPORT([node_2_cpu_mask],
1130 [arch/$LINUX_ARCH/kernel/smpboot.c],
1131 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1132 [node_to_cpumask is exported by
1133 the kernel])]) # i386
1137 # LC_VFS_INTENT_PATCHES
1139 # check if the kernel has the VFS intent patches
1140 AC_DEFUN([LC_VFS_INTENT_PATCHES],
1141 [AC_MSG_CHECKING([if the kernel has the VFS intent patches])
1142 LB_LINUX_TRY_COMPILE([
1143 #include <linux/fs.h>
1144 #include <linux/namei.h>
1146 struct nameidata nd;
1147 struct lookup_intent *it;
1150 intent_init(it, IT_OPEN);
1151 it->d.lustre.it_disposition = 0;
1152 it->d.lustre.it_data = NULL;
1154 AC_MSG_RESULT([yes])
1155 AC_DEFINE(HAVE_VFS_INTENT_PATCHES, 1, [VFS intent patches are applied])
1164 # Lustre linux kernel checks
1166 AC_DEFUN([LC_PROG_LINUX],
1167 [ LC_LUSTRE_VERSION_H
1168 if test x$enable_server = xyes ; then
1173 LC_CONFIG_LIBLUSTRE_RECOVERY
1175 LC_CONFIG_HEALTH_CHECK_WRITE
1179 LC_EXPORT_TRUNCATE_COMPLETE
1180 LC_EXPORT_D_REHASH_COND
1181 LC_EXPORT___D_REHASH
1182 LC_EXPORT_NODE_TO_CPUMASK
1185 LC_FUNC_COND_RESCHED
1186 LC_FUNC_ZAP_PAGE_RANGE
1191 LC_FUNC_REGISTER_CACHE
1192 LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
1193 LC_FUNC_DEV_SET_RDONLY
1194 LC_FUNC_FILEMAP_FDATAWRITE
1197 LC_STRUCT_FILE_OPS_UNLOCKED_IOCTL
1202 LC_STRUCT_INTENT_FILE
1203 LC_POSIX_ACL_XATTR_H
1207 LC_FUNC_MS_FLOCK_LOCK
1208 LC_FUNC_HAVE_CAN_SLEEP_ARG
1211 LC_COOKIE_FOLLOW_LINK
1214 # does the kernel have VFS intent patches?
1215 LC_VFS_INTENT_PATCHES
1225 LC_STATFS_DENTRY_PARAM
1227 LC_INVALIDATEPAGE_RETURN_INT
1228 LC_UMOUNTBEGIN_HAS_VFSMOUNT
1230 #2.6.18 + RHEL5 (fc6)
1235 LC_VFS_READDIR_U64_INO
1236 LC_GENERIC_FILE_READ
1237 LC_GENERIC_FILE_WRITE
1240 LC_CANCEL_DIRTY_PAGE
1242 # raid5-zerocopy patch
1247 # LC_CONFIG_CLIENT_SERVER
1249 # Build client/server sides of Lustre
1251 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
1252 [AC_MSG_CHECKING([whether to build Lustre server support])
1253 AC_ARG_ENABLE([server],
1254 AC_HELP_STRING([--disable-server],
1255 [disable Lustre server support]),
1256 [],[enable_server='yes'])
1257 AC_MSG_RESULT([$enable_server])
1259 AC_MSG_CHECKING([whether to build Lustre client support])
1260 AC_ARG_ENABLE([client],
1261 AC_HELP_STRING([--disable-client],
1262 [disable Lustre client support]),
1263 [],[enable_client='yes'])
1264 AC_MSG_RESULT([$enable_client])])
1267 # LC_CONFIG_LIBLUSTRE
1269 # whether to build liblustre
1271 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
1272 [AC_MSG_CHECKING([whether to build Lustre library])
1273 AC_ARG_ENABLE([liblustre],
1274 AC_HELP_STRING([--disable-liblustre],
1275 [disable building of Lustre library]),
1276 [],[enable_liblustre=$with_sysio])
1277 AC_MSG_RESULT([$enable_liblustre])
1278 # only build sysio if liblustre is built
1279 with_sysio="$enable_liblustre"
1281 AC_MSG_CHECKING([whether to build liblustre tests])
1282 AC_ARG_ENABLE([liblustre-tests],
1283 AC_HELP_STRING([--enable-liblustre-tests],
1284 [enable liblustre tests, if --disable-tests is used]),
1285 [],[enable_liblustre_tests=$enable_tests])
1286 if test x$enable_liblustre != xyes ; then
1287 enable_liblustre_tests='no'
1289 AC_MSG_RESULT([$enable_liblustre_tests])
1291 AC_MSG_CHECKING([whether to build mpitests])
1292 AC_ARG_ENABLE([mpitests],
1293 AC_HELP_STRING([--enable-mpitests],
1294 [build liblustre mpi tests]),
1295 [],[enable_mpitests=no])
1296 AC_MSG_RESULT([$enable_mpitests])
1298 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
1299 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
1302 LC_CONFIG_LIBLUSTRE_RECOVERY
1308 # whether to enable quota support
1310 AC_DEFUN([LC_CONFIG_QUOTA],
1311 [AC_MSG_CHECKING([whether to disable quota support])
1312 AC_ARG_ENABLE([quota],
1313 AC_HELP_STRING([--disable-quota],
1314 [disable quota support]),
1315 [],[enable_quota='yes'])
1316 AC_MSG_RESULT([$enable_quota])
1317 if test x$linux25 != xyes; then
1320 if test x$enable_quota != xno; then
1321 AC_DEFINE(HAVE_QUOTA_SUPPORT, 1, [Enable quota support])
1328 # whether to enable split support
1330 AC_DEFUN([LC_CONFIG_SPLIT],
1331 [AC_MSG_CHECKING([whether to enable split support])
1332 AC_ARG_ENABLE([split],
1333 AC_HELP_STRING([--enable-split],
1334 [enable split support]),
1335 [],[enable_split='no'])
1336 AC_MSG_RESULT([$enable_split])
1337 if test x$enable_split != xno; then
1338 AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
1342 AC_DEFUN([LC_QUOTA_READ],
1343 [AC_MSG_CHECKING([if kernel supports quota_read])
1344 LB_LINUX_TRY_COMPILE([
1345 #include <linux/fs.h>
1347 struct super_operations sp;
1348 void *i = (void *)sp.quota_read;
1350 AC_MSG_RESULT([yes])
1351 AC_DEFINE(KERNEL_SUPPORTS_QUOTA_READ, 1, [quota_read found])
1358 # LC_COOKIE_FOLLOW_LINK
1360 # kernel 2.6.13+ ->follow_link returns a cookie
1363 AC_DEFUN([LC_COOKIE_FOLLOW_LINK],
1364 [AC_MSG_CHECKING([if inode_operations->follow_link returns a cookie])
1365 LB_LINUX_TRY_COMPILE([
1366 #include <linux/fs.h>
1367 #include <linux/namei.h>
1369 struct dentry dentry;
1370 struct nameidata nd;
1372 dentry.d_inode->i_op->put_link(&dentry, &nd, NULL);
1374 AC_DEFINE(HAVE_COOKIE_FOLLOW_LINK, 1, [inode_operations->follow_link returns a cookie])
1375 AC_MSG_RESULT([yes])
1384 # kernels prior than 2.6.0(?) have no RCU supported; in kernel 2.6.5(SUSE),
1385 # call_rcu takes three parameters.
1387 AC_DEFUN([LC_FUNC_RCU],
1388 [AC_MSG_CHECKING([if kernel have RCU supported])
1389 LB_LINUX_TRY_COMPILE([
1390 #include <linux/rcupdate.h>
1392 AC_DEFINE(HAVE_RCU, 1, [have RCU defined])
1393 AC_MSG_RESULT([yes])
1395 AC_MSG_CHECKING([if call_rcu takes three parameters])
1396 LB_LINUX_TRY_COMPILE([
1397 #include <linux/rcupdate.h>
1400 call_rcu(&rh, (void (*)(struct rcu_head *))1, NULL);
1402 AC_DEFINE(HAVE_CALL_RCU_PARAM, 1, [call_rcu takes three parameters])
1403 AC_MSG_RESULT([yes])
1415 # other configure checks
1417 AC_DEFUN([LC_CONFIGURE],
1418 [LC_CONFIG_OBD_BUFFER_SIZE
1420 # include/liblustre.h
1421 AC_CHECK_HEADERS([asm/page.h sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
1423 # include/lustre/lustre_user.h
1424 # See note there re: __ASM_X86_64_PROCESSOR_H
1425 AC_CHECK_HEADERS([linux/quota.h])
1427 # liblustre/llite_lib.h
1428 AC_CHECK_HEADERS([xtio.h file.h])
1431 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
1434 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
1435 AC_CHECK_FUNCS([inet_ntoa])
1437 # libsysio/src/readlink.c
1441 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
1444 AC_ARG_ENABLE([mindf],
1445 AC_HELP_STRING([--enable-mindf],
1446 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
1448 if test "$enable_mindf" = "yes" ; then
1449 AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
1452 AC_ARG_ENABLE([fail_alloc],
1453 AC_HELP_STRING([--disable-fail-alloc],
1454 [disable randomly alloc failure]),
1455 [],[enable_fail_alloc=yes])
1456 AC_MSG_CHECKING([whether to randomly failing memory alloc])
1457 AC_MSG_RESULT([$enable_fail_alloc])
1458 if test x$enable_fail_alloc != xno ; then
1459 AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
1467 # AM_CONDITIONALS for lustre
1469 AC_DEFUN([LC_CONDITIONALS],
1470 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
1471 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
1472 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
1473 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
1474 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
1475 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
1476 AM_CONDITIONAL(QUOTA, test x$enable_quota = xyes)
1477 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
1478 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
1479 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
1480 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
1481 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
1487 # files that should be generated with AC_OUTPUT
1489 AC_DEFUN([LC_CONFIG_FILES],
1493 lustre/autoconf/Makefile
1494 lustre/contrib/Makefile
1496 lustre/include/Makefile
1497 lustre/include/lustre_ver.h
1498 lustre/include/linux/Makefile
1499 lustre/include/lustre/Makefile
1500 lustre/kernel_patches/targets/2.6-suse.target
1501 lustre/kernel_patches/targets/2.6-vanilla.target
1502 lustre/kernel_patches/targets/2.6-rhel4.target
1503 lustre/kernel_patches/targets/2.6-rhel5.target
1504 lustre/kernel_patches/targets/2.6-fc5.target
1505 lustre/kernel_patches/targets/2.6-patchless.target
1506 lustre/kernel_patches/targets/2.6-sles10.target
1507 lustre/ldlm/Makefile
1509 lustre/fid/autoMakefile
1510 lustre/liblustre/Makefile
1511 lustre/liblustre/tests/Makefile
1512 lustre/llite/Makefile
1513 lustre/llite/autoMakefile
1515 lustre/lov/autoMakefile
1516 lustre/lvfs/Makefile
1517 lustre/lvfs/autoMakefile
1519 lustre/mdc/autoMakefile
1521 lustre/lmv/autoMakefile
1523 lustre/mds/autoMakefile
1525 lustre/mdt/autoMakefile
1527 lustre/cmm/autoMakefile
1529 lustre/mdd/autoMakefile
1531 lustre/fld/autoMakefile
1532 lustre/obdclass/Makefile
1533 lustre/obdclass/autoMakefile
1534 lustre/obdclass/linux/Makefile
1535 lustre/obdecho/Makefile
1536 lustre/obdecho/autoMakefile
1537 lustre/obdfilter/Makefile
1538 lustre/obdfilter/autoMakefile
1540 lustre/osc/autoMakefile
1542 lustre/ost/autoMakefile
1544 lustre/osd/autoMakefile
1546 lustre/mgc/autoMakefile
1548 lustre/mgs/autoMakefile
1549 lustre/ptlrpc/Makefile
1550 lustre/ptlrpc/autoMakefile
1551 lustre/ptlrpc/gss/Makefile
1552 lustre/ptlrpc/gss/autoMakefile
1553 lustre/quota/Makefile
1554 lustre/quota/autoMakefile
1555 lustre/scripts/Makefile
1556 lustre/scripts/version_tag.pl
1557 lustre/tests/Makefile
1558 lustre/utils/Makefile
1559 lustre/utils/gss/Makefile
1561 case $lb_target_os in
1563 AC_CONFIG_FILES([ lustre/obdclass/darwin/Makefile ])