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])
17 # lustre specific paths
19 AC_DEFUN([LC_PATH_DEFAULTS],
20 [# ptlrpc kernel build requires this
28 demodir='$(docdir)/demo'
31 pkgexampledir='${pkgdatadir}/examples'
32 AC_SUBST(pkgexampledir)
38 # is the target os supported?
40 AC_DEFUN([LC_TARGET_SUPPORTED],
52 # LC_CONFIG_OBD_BUFFER_SIZE
54 # the maximum buffer size of lctl ioctls
56 AC_DEFUN([LC_CONFIG_OBD_BUFFER_SIZE],
57 [AC_MSG_CHECKING([maximum OBD ioctl size])
58 AC_ARG_WITH([obd-buffer-size],
59 AC_HELP_STRING([--with-obd-buffer-size=[size]],
60 [set lctl ioctl maximum bytes (default=8192)]),
62 OBD_BUFFER_SIZE=$with_obd_buffer_size
66 AC_MSG_RESULT([$OBD_BUFFER_SIZE bytes])
67 AC_DEFINE_UNQUOTED(OBD_MAX_IOCTL_BUFFER, $OBD_BUFFER_SIZE, [IOCTL Buffer Size])
73 AC_DEFUN([LC_READLINK_SSIZE_T],
74 [AC_MSG_CHECKING([if readlink returns ssize_t])
78 ssize_t readlink(const char *, char *, size_t);
81 AC_DEFINE(HAVE_POSIX_1003_READLINK, 1, [readlink returns ssize_t])
88 # LC_FUNC_RELEASEPAGE_WITH_GFP
90 # 2.6.9 ->releasepage() takes a gfp_t arg
91 # This kernel defines gfp_t (HAS_GFP_T) but doesn't use it for this function,
92 # while others either don't have gfp_t or pass gfp_t as the parameter.
94 AC_DEFUN([LC_FUNC_RELEASEPAGE_WITH_GFP],
95 [AC_MSG_CHECKING([if releasepage has a gfp_t parameter])
96 RELEASEPAGE_WITH_GFP="$(grep -c 'releasepage.*gfp_t' $LINUX/include/linux/fs.h)"
97 if test "$RELEASEPAGE_WITH_GFP" != 0 ; then
98 AC_DEFINE(HAVE_RELEASEPAGE_WITH_GFP, 1,
99 [releasepage with gfp_t parameter])
109 # only for Lustre-patched kernels
111 AC_DEFUN([LC_LUSTRE_VERSION_H],
112 [LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
113 rm -f "$LUSTRE/include/linux/lustre_version.h"
115 touch "$LUSTRE/include/linux/lustre_version.h"
116 if test x$enable_server = xyes ; then
117 AC_MSG_WARN([Unpatched kernel detected.])
118 AC_MSG_WARN([Lustre servers cannot be built with an unpatched kernel;])
119 AC_MSG_WARN([disabling server build])
126 # LC_FUNC_DEV_SET_RDONLY
128 # check for the old-style dev_set_rdonly which took an extra "devno" param
129 # and can only set a single device to discard writes at one time
131 AC_DEFUN([LC_FUNC_DEV_SET_RDONLY],
132 [AC_MSG_CHECKING([if kernel has new dev_set_rdonly])
133 LB_LINUX_TRY_COMPILE([
134 #include <linux/fs.h>
135 #include <linux/blkdev.h>
137 #ifndef HAVE_CLEAR_RDONLY_ON_PUT
138 #error needs to be patched by lustre kernel patches from Lustre version 1.4.3 or above.
142 AC_DEFINE(HAVE_DEV_SET_RDONLY, 1, [kernel has new dev_set_rdonly])
144 AC_MSG_ERROR([no, Linux kernel source needs to be patches by lustre
145 kernel patches from Lustre version 1.4.3 or above.])
150 # Ensure stack size big than 8k in Lustre server (all kernels)
152 AC_DEFUN([LC_STACK_SIZE],
153 [AC_MSG_CHECKING([stack size big than 8k])
154 LB_LINUX_TRY_COMPILE([
155 #include <linux/thread_info.h>
157 #if THREAD_SIZE < 8192
158 #error "stack size < 8192"
163 AC_MSG_ERROR([Lustre requires that Linux is configured with at least a 8KB stack.])
168 # LC_CONFIG_BACKINGFS
170 # setup, check the backing filesystem
172 AC_DEFUN([LC_CONFIG_BACKINGFS],
176 if test x$with_ldiskfs = xno ; then
177 if test x$linux25$enable_server = xyesyes ; then
178 AC_MSG_ERROR([ldiskfs is required for 2.6-based servers.])
182 LB_DEFINE_LDISKFS_OPTIONS
185 AC_MSG_CHECKING([which backing filesystem to use])
186 AC_MSG_RESULT([$BACKINGFS])
193 # the pinger is temporary, until we have the recovery node in place
195 AC_DEFUN([LC_CONFIG_PINGER],
196 [AC_MSG_CHECKING([whether to enable pinger support])
197 AC_ARG_ENABLE([pinger],
198 AC_HELP_STRING([--disable-pinger],
199 [disable recovery pinger support]),
200 [],[enable_pinger='yes'])
201 AC_MSG_RESULT([$enable_pinger])
202 if test x$enable_pinger != xno ; then
203 AC_DEFINE(ENABLE_PINGER, 1, Use the Pinger)
210 # do checksum of bulk data between client and OST
212 AC_DEFUN([LC_CONFIG_CHECKSUM],
213 [AC_MSG_CHECKING([whether to enable data checksum support])
214 AC_ARG_ENABLE([checksum],
215 AC_HELP_STRING([--disable-checksum],
216 [disable data checksum support]),
217 [],[enable_checksum='yes'])
218 AC_MSG_RESULT([$enable_checksum])
219 if test x$enable_checksum != xno ; then
220 AC_DEFINE(ENABLE_CHECKSUM, 1, do data checksums)
225 # LC_CONFIG_LIBLUSTRE_RECOVERY
227 AC_DEFUN([LC_CONFIG_LIBLUSTRE_RECOVERY],
228 [AC_MSG_CHECKING([whether to enable liblustre recovery support])
229 AC_ARG_ENABLE([liblustre-recovery],
230 AC_HELP_STRING([--disable-liblustre-recovery],
231 [disable liblustre recovery support]),
232 [],[enable_liblustre_recovery='yes'])
233 AC_MSG_RESULT([$enable_liblustre_recovery])
234 if test x$enable_liblustre_recovery != xno ; then
235 AC_DEFINE(ENABLE_LIBLUSTRE_RECOVERY, 1, Liblustre Can Recover)
240 # LC_CONFIG_HEALTH_CHECK_WRITE
242 # Turn off the actual write to the disk
244 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE],
245 [AC_MSG_CHECKING([whether to enable a write with the health check])
246 AC_ARG_ENABLE([health_write],
247 AC_HELP_STRING([--enable-health_write],
248 [enable disk writes when doing health check]),
249 [],[enable_health_write='no'])
250 AC_MSG_RESULT([$enable_health_write])
251 if test x$enable_health_write != xno ; then
252 AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, Write when Checking Health)
256 AC_DEFUN([LC_CONFIG_LRU_RESIZE],
257 [AC_MSG_CHECKING([whether to enable lru self-adjusting])
258 AC_ARG_ENABLE([lru_resize],
259 AC_HELP_STRING([--enable-lru-resize],
260 [enable lru resize support]),
261 [],[enable_lru_resize='yes'])
262 AC_MSG_RESULT([$enable_lru_resize])
263 if test x$enable_lru_resize != xno; then
264 AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])
268 # whether to enable quota support(kernel modules)
269 AC_DEFUN([LC_QUOTA_MODULE],
270 [if test x$enable_quota != xno; then
271 LB_LINUX_CONFIG([QUOTA],[
272 enable_quota_module='yes'
273 AC_DEFINE(HAVE_QUOTA_SUPPORT, 1, [Enable quota support])
275 enable_quota_module='no'
276 AC_MSG_WARN([quota is not enabled because the kernel - lacks quota support])
281 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE],
282 [LB_CHECK_SYMBOL_EXPORT([truncate_complete_page],
284 AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
285 [kernel export truncate_complete_page])
290 AC_DEFUN([LC_EXPORT_TRUNCATE_RANGE],
291 [LB_CHECK_SYMBOL_EXPORT([truncate_inode_pages_range],
293 AC_DEFINE(HAVE_TRUNCATE_RANGE, 1,
294 [kernel export truncate_inode_pages_range])
299 AC_DEFUN([LC_EXPORT_D_REHASH_COND],
300 [LB_CHECK_SYMBOL_EXPORT([d_rehash_cond],
302 AC_DEFINE(HAVE_D_REHASH_COND, 1,
303 [d_rehash_cond is exported by the kernel])
308 AC_DEFUN([LC_EXPORT___D_REHASH],
309 [LB_CHECK_SYMBOL_EXPORT([__d_rehash],
311 AC_DEFINE(HAVE___D_REHASH, 1,
312 [__d_rehash is exported by the kernel])
317 AC_DEFUN([LC_EXPORT_D_MOVE_LOCKED],
318 [LB_CHECK_SYMBOL_EXPORT([d_move_locked],
320 AC_DEFINE(HAVE_D_MOVE_LOCKED, 1,
321 [d_move_locked is exported by the kernel])
326 AC_DEFUN([LC_EXPORT___D_MOVE],
327 [LB_CHECK_SYMBOL_EXPORT([__d_move],
329 AC_DEFINE(HAVE___D_MOVE, 1,
330 [__d_move is exported by the kernel])
335 # The actual symbol exported varies among architectures, so we need
336 # to check many symbols (but only in the current architecture.) No
337 # matter what symbol is exported, the kernel #defines node_to_cpumask
338 # to the appropriate function and that's what we use.
339 AC_DEFUN([LC_EXPORT_NODE_TO_CPUMASK],
340 [LB_CHECK_SYMBOL_EXPORT([node_to_cpumask],
341 [arch/$LINUX_ARCH/mm/numa.c],
342 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
343 [node_to_cpumask is exported by
344 the kernel])]) # x86_64
345 LB_CHECK_SYMBOL_EXPORT([node_to_cpu_mask],
346 [arch/$LINUX_ARCH/kernel/smpboot.c],
347 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
348 [node_to_cpumask is exported by
349 the kernel])]) # ia64
350 LB_CHECK_SYMBOL_EXPORT([node_2_cpu_mask],
351 [arch/$LINUX_ARCH/kernel/smpboot.c],
352 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
353 [node_to_cpumask is exported by
354 the kernel])]) # i386
358 # LC_HEADER_LDISKFS_XATTR
360 # CHAOS kernel-devel package will not include fs/ldiskfs/xattr.h
362 AC_DEFUN([LC_HEADER_LDISKFS_XATTR],
363 [AC_MSG_CHECKING([if ldiskfs has xattr.h header])
364 tmp_flags="$EXTRA_KCFLAGS"
365 EXTRA_KCFLAGS="-I$LINUX/fs -I$LDISKFS_DIR -I$LDISKFS_DIR/ldiskfs"
366 LB_LINUX_TRY_COMPILE([
367 #include <ldiskfs/xattr.h>
369 ldiskfs_xattr_get(NULL, 0, "", NULL, 0);
370 ldiskfs_xattr_set_handle(NULL, NULL, 0, "", NULL, 0, 0);
374 AC_DEFINE(HAVE_LDISKFS_XATTR_H, 1, [ldiskfs/xattr.h found])
378 EXTRA_KCFLAGS="$tmp_flags"
382 # LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
384 # Check for our patched grab_cache_page_nowait_gfp() function
385 # after 2.6.29 we can emulate this using add_to_page_cache_lru()
387 AC_DEFUN([LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP],
388 [LB_CHECK_SYMBOL_EXPORT([grab_cache_page_nowait_gfp],
390 AC_DEFINE(HAVE_GRAB_CACHE_PAGE_NOWAIT_GFP, 1,
391 [kernel exports grab_cache_page_nowait_gfp])
393 [LB_CHECK_SYMBOL_EXPORT([add_to_page_cache_lru],
395 AC_DEFINE(HAVE_ADD_TO_PAGE_CACHE_LRU, 1,
396 [kernel exports add_to_page_cache_lru])
405 # AIX does not have statfs.f_namelen
407 AC_DEFUN([LC_STRUCT_STATFS],
408 [AC_MSG_CHECKING([if struct statfs has a f_namelen field])
409 LB_LINUX_TRY_COMPILE([
410 #include <linux/vfs.h>
416 AC_DEFINE(HAVE_STATFS_NAMELEN, 1, [struct statfs has a namelen field])
423 # between 2.6.5 - 2.6.22 filemap_populate is exported in some kernels
425 AC_DEFUN([LC_FILEMAP_POPULATE],
426 [AC_MSG_CHECKING([for exported filemap_populate])
427 LB_LINUX_TRY_COMPILE([
428 #include <asm/page.h>
429 #include <linux/mm.h>
431 filemap_populate(NULL, 0, 0, __pgprot(0), 0, 0);
434 AC_DEFINE(HAVE_FILEMAP_POPULATE, 1, [Kernel exports filemap_populate])
443 AC_DEFUN([LC_D_ADD_UNIQUE],
444 [AC_MSG_CHECKING([for d_add_unique])
445 LB_LINUX_TRY_COMPILE([
446 #include <linux/dcache.h>
448 d_add_unique(NULL, NULL);
451 AC_DEFINE(HAVE_D_ADD_UNIQUE, 1, [Kernel has d_add_unique])
460 AC_DEFUN([LC_BIT_SPINLOCK_H],
461 [LB_CHECK_FILE([$LINUX/include/linux/bit_spinlock.h],[
462 AC_MSG_CHECKING([if bit_spinlock.h can be compiled])
463 LB_LINUX_TRY_COMPILE([
464 #include <asm/processor.h>
465 #include <linux/spinlock.h>
466 #include <linux/bit_spinlock.h>
469 AC_DEFINE(HAVE_BIT_SPINLOCK_H, 1, [Kernel has bit_spinlock.h])
478 # After 2.6.26 we no longer have xattr_acl.h
480 AC_DEFUN([LC_XATTR_ACL],
481 [LB_CHECK_FILE([$LINUX/include/linux/xattr_acl.h],[
482 AC_MSG_CHECKING([if xattr_acl.h can be compiled])
483 LB_LINUX_TRY_COMPILE([
484 #include <linux/xattr_acl.h>
487 AC_DEFINE(HAVE_XATTR_ACL, 1, [Kernel has xattr_acl])
496 # After 2.6.16 the xattr_acl API is removed, and posix_acl is used instead
498 AC_DEFUN([LC_POSIX_ACL_XATTR_H],
499 [LB_CHECK_FILE([$LINUX/include/linux/posix_acl_xattr.h],[
500 AC_MSG_CHECKING([if linux/posix_acl_xattr.h can be compiled])
501 LB_LINUX_TRY_COMPILE([
502 #include <linux/fs.h>
503 #include <linux/posix_acl_xattr.h>
506 AC_DEFINE(HAVE_LINUX_POSIX_ACL_XATTR_H, 1, [linux/posix_acl_xattr.h found])
517 AC_DEFUN([LC_CONST_ACL_SIZE],
518 [AC_MSG_CHECKING([calc acl size])
520 CFLAGS="$CFLAGS -I$LINUX/include -I$LINUX_OBJ/include -I$LINUX_OBJ/include2 -I$LINUX/arch/`uname -m|sed -e 's/ppc.*/powerpc/' -e 's/x86_64/x86/' -e 's/i.86/x86/'`/include $EXTRA_KCFLAGS"
523 #include <linux/autoconf.h>
524 #include <linux/types.h>
527 #define __LINUX_POSIX_ACL_H
529 # ifdef CONFIG_FS_POSIX_ACL
530 # ifdef HAVE_XATTR_ACL
531 # include <linux/xattr_acl.h>
533 # ifdef HAVE_LINUX_POSIX_ACL_XATTR_H
534 # include <linux/posix_acl_xattr.h>
538 #include <lustre_acl.h>
544 int size = mds_xattr_acl_size(LUSTRE_POSIX_ACL_MAX_ENTRIES);
545 FILE *f = fopen("acl.size","w+");
546 fprintf(f,"%d", size);
552 acl_size=`cat acl.size`
553 AC_MSG_RESULT([ACL size $acl_size])
554 AC_DEFINE_UNQUOTED(XATTR_ACL_SIZE, AS_TR_SH([$acl_size]), [size of xattr acl])
556 AC_ERROR([ACL size can't computed])
563 AC_DEFUN([LC_STRUCT_INTENT_FILE],
564 [AC_MSG_CHECKING([if struct open_intent has a file field])
565 LB_LINUX_TRY_COMPILE([
566 #include <linux/fs.h>
567 #include <linux/namei.h>
569 struct open_intent intent;
573 AC_DEFINE(HAVE_FILE_IN_STRUCT_INTENT, 1, [struct open_intent has a file field])
582 AC_DEFUN([LC_CAPA_CRYPTO],
583 [LB_LINUX_CONFIG_IM([CRYPTO],[],[
584 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])
586 LB_LINUX_CONFIG_IM([CRYPTO_HMAC],[],[
587 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])
589 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],[
590 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])
595 # LC_CONFIG_RMTCLIENT
598 dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
600 AC_DEFUN([LC_CONFIG_RMTCLIENT],
601 [LB_LINUX_CONFIG_IM([CRYPTO_AES],[],[
602 AC_MSG_WARN([Lustre remote client require that CONFIG_CRYPTO_AES is enabled in your kernel.])
607 # LC_CONFIG_GSS_KEYRING (default enabled, if gss is enabled)
609 AC_DEFUN([LC_CONFIG_GSS_KEYRING],
610 [AC_MSG_CHECKING([whether to enable gss keyring backend])
611 AC_ARG_ENABLE([gss_keyring],
612 [AC_HELP_STRING([--disable-gss-keyring],
613 [disable gss keyring backend])],
614 [],[enable_gss_keyring='yes'])
615 AC_MSG_RESULT([$enable_gss_keyring])
617 if test x$enable_gss_keyring != xno; then
618 LB_LINUX_CONFIG_IM([KEYS],[],
619 [AC_MSG_ERROR([GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.])])
621 AC_CHECK_LIB([keyutils], [keyctl_search], [],
622 [AC_MSG_ERROR([libkeyutils is not found, which is required by gss keyring backend])],)
624 AC_DEFINE([HAVE_GSS_KEYRING], [1],
625 [Define this if you enable gss keyring backend])
629 AC_DEFUN([LC_SUNRPC_CACHE],
630 [AC_MSG_CHECKING([if sunrpc struct cache_head uses kref])
631 LB_LINUX_TRY_COMPILE([
632 #include <linux/sunrpc/cache.h>
634 struct cache_head ch;
638 AC_DEFINE(HAVE_SUNRPC_CACHE_V2, 1, [sunrpc cache facility v2])
644 AC_DEFUN([LC_CONFIG_SUNRPC],
645 [LB_LINUX_CONFIG_IM([SUNRPC],[],
646 [AC_MSG_ERROR([kernel SUNRPC support is required by using GSS.])])
651 # LC_CONFIG_GSS (default disabled)
653 # Build gss and related tools of Lustre. Currently both kernel and user space
654 # parts are depend on linux platform.
656 AC_DEFUN([LC_CONFIG_GSS],
657 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
659 [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
660 [],[enable_gss='no'])
661 AC_MSG_RESULT([$enable_gss])
663 if test x$enable_gss == xyes; then
664 LC_CONFIG_GSS_KEYRING
667 AC_DEFINE([HAVE_GSS], [1], [Define this if you enable gss])
669 LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
670 [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
671 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
672 [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
673 LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
674 [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
675 LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
676 [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
678 AC_CHECK_LIB([gssapi], [gss_init_sec_context],
679 [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"],
680 [AC_CHECK_LIB([gssglue], [gss_init_sec_context],
681 [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue"],
682 [AC_MSG_ERROR([libgssapi or libgssglue is not found, which is required by GSS.])])],)
684 AC_SUBST(GSSAPI_LIBS)
691 # LC_FUNC_HAVE_CAN_SLEEP_ARG
693 # 2.6.5 kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()
695 AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG],
696 [AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
697 LB_LINUX_TRY_COMPILE([
698 #include <linux/fs.h>
702 struct file_lock *file_lock;
703 flock_lock_file_wait(file, file_lock, cansleep);
705 AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1,
706 [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
716 # rhel4.2 kernel has f_op->flock field
718 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
719 [AC_MSG_CHECKING([if struct file_operations has flock field])
720 LB_LINUX_TRY_COMPILE([
721 #include <linux/fs.h>
723 struct file_operations ll_file_operations_flock;
724 ll_file_operations_flock.flock = NULL;
726 AC_DEFINE(HAVE_F_OP_FLOCK, 1,
727 [struct file_operations has flock field])
734 AC_DEFUN([LC_QUOTA_READ],
735 [AC_MSG_CHECKING([if kernel supports quota_read])
736 LB_LINUX_TRY_COMPILE([
737 #include <linux/fs.h>
739 struct super_operations sp;
740 void *i = (void *)sp.quota_read;
743 AC_DEFINE(KERNEL_SUPPORTS_QUOTA_READ, 1, [quota_read found])
750 # LC_COOKIE_FOLLOW_LINK
752 # kernel 2.6.13+ ->follow_link returns a cookie
755 AC_DEFUN([LC_COOKIE_FOLLOW_LINK],
756 [AC_MSG_CHECKING([if inode_operations->follow_link returns a cookie])
757 LB_LINUX_TRY_COMPILE([
758 #include <linux/fs.h>
759 #include <linux/namei.h>
761 struct dentry dentry;
764 dentry.d_inode->i_op->put_link(&dentry, &nd, NULL);
766 AC_DEFINE(HAVE_COOKIE_FOLLOW_LINK, 1, [inode_operations->follow_link returns a cookie])
776 # kernels prior than 2.6.0(?) have no RCU supported; in kernel 2.6.5(SUSE),
777 # call_rcu takes three parameters.
779 AC_DEFUN([LC_FUNC_RCU],
780 [AC_MSG_CHECKING([if kernel have RCU supported])
781 LB_LINUX_TRY_COMPILE([
782 #include <linux/rcupdate.h>
784 AC_DEFINE(HAVE_RCU, 1, [have RCU defined])
787 AC_MSG_CHECKING([if call_rcu takes three parameters])
788 LB_LINUX_TRY_COMPILE([
789 #include <linux/rcupdate.h>
792 call_rcu(&rh, (void (*)(struct rcu_head *))1, NULL);
794 AC_DEFINE(HAVE_CALL_RCU_PARAM, 1, [call_rcu takes three parameters])
805 AC_DEFUN([LC_PERCPU_COUNTER],
806 [AC_MSG_CHECKING([if have struct percpu_counter defined])
807 LB_LINUX_TRY_COMPILE([
808 #include <linux/percpu_counter.h>
810 AC_DEFINE(HAVE_PERCPU_COUNTER, 1, [percpu_counter found])
813 AC_MSG_CHECKING([if percpu_counter_inc takes the 2nd argument])
814 LB_LINUX_TRY_COMPILE([
815 #include <linux/percpu_counter.h>
817 struct percpu_counter c;
818 percpu_counter_init(&c, 0);
820 AC_DEFINE(HAVE_PERCPU_2ND_ARG, 1, [percpu_counter_init has two
831 AC_DEFUN([LC_TASK_CLENV_STORE],
833 AC_MSG_CHECKING([if we can store cl_env in task_struct])
834 if test x$have_task_clenv_store != xyes ; then
835 LC_TASK_CLENV_TUX_INFO
841 AC_DEFUN([LC_S_TIME_GRAN],
842 [AC_MSG_CHECKING([if super block has s_time_gran member])
843 LB_LINUX_TRY_COMPILE([
844 #include <linux/fs.h>
846 struct super_block sb;
848 return sb.s_time_gran;
851 AC_DEFINE(HAVE_S_TIME_GRAN, 1, [super block has s_time_gran member])
857 AC_DEFUN([LC_SB_TIME_GRAN],
858 [AC_MSG_CHECKING([if kernel has old get_sb_time_gran])
859 LB_LINUX_TRY_COMPILE([
860 #include <linux/fs.h>
862 return get_sb_time_gran(NULL);
865 AC_DEFINE(HAVE_SB_TIME_GRAN, 1, [kernel has old get_sb_time_gran])
873 # ~2.6.12 merge patch from oracle to convert tree_lock from spinlock to rwlock
874 AC_DEFUN([LC_RW_TREE_LOCK],
875 [AC_MSG_CHECKING([if kernel has tree_lock as rwlock])
876 tmp_flags="$EXTRA_KCFLAGS"
877 EXTRA_KCFLAGS="-Werror"
878 LB_LINUX_TRY_COMPILE([
879 #include <linux/fs.h>
881 struct address_space a;
883 write_lock(&a.tree_lock);
886 AC_DEFINE(HAVE_RW_TREE_LOCK, 1, [kernel has tree_lock as rw_lock])
890 EXTRA_KCFLAGS="$tmp_flags"
893 # LC_EXPORT_SYNCHRONIZE_RCU
894 # after 2.6.12 synchronize_rcu is preferred over synchronize_kernel
895 AC_DEFUN([LC_EXPORT_SYNCHRONIZE_RCU],
896 [LB_CHECK_SYMBOL_EXPORT([synchronize_rcu],
897 [kernel/rcupdate.c],[
898 AC_DEFINE(HAVE_SYNCHRONIZE_RCU, 1,
899 [in 2.6.12 synchronize_rcu preferred over synchronize_kernel])
907 # after 2.6.15 inode have i_mutex intead of i_sem
908 AC_DEFUN([LC_INODE_I_MUTEX],
909 [AC_MSG_CHECKING([if inode has i_mutex ])
910 LB_LINUX_TRY_COMPILE([
911 #include <linux/mutex.h>
912 #include <linux/fs.h>
917 mutex_unlock(&i.i_mutex);
920 AC_DEFINE(HAVE_INODE_I_MUTEX, 1,
921 [after 2.6.15 inode have i_mutex intead of i_sem])
929 # LC_SECURITY_PLUG # for SLES10 SP2
930 # check security plug in sles10 sp2 kernel
931 AC_DEFUN([LC_SECURITY_PLUG],
932 [AC_MSG_CHECKING([If kernel has security plug support])
933 LB_LINUX_TRY_COMPILE([
934 #include <linux/fs.h>
936 struct dentry *dentry;
937 struct vfsmount *mnt;
940 notify_change(dentry, mnt, iattr);
943 AC_DEFINE(HAVE_SECURITY_PLUG, 1,
944 [SLES10 SP2 use extra parameter in vfs])
952 # inode have i_private field since 2.6.17
953 AC_DEFUN([LC_INODE_IPRIVATE],
954 [AC_MSG_CHECKING([if inode has a i_private field])
955 LB_LINUX_TRY_COMPILE([
956 #include <linux/fs.h>
962 AC_DEFINE(HAVE_INODE_IPRIVATE, 1,
963 [struct inode has i_private field])
970 # after 2.6.17 dquote use mutex instead if semaphore
971 AC_DEFUN([LC_DQUOTOFF_MUTEX],
972 [AC_MSG_CHECKING([use dqonoff_mutex])
973 LB_LINUX_TRY_COMPILE([
974 #include <linux/mutex.h>
975 #include <linux/fs.h>
976 #include <linux/quota.h>
978 struct quota_info dq;
980 mutex_unlock(&dq.dqonoff_mutex);
983 AC_DEFINE(HAVE_DQUOTOFF_MUTEX, 1,
984 [after 2.6.17 dquote use mutex instead if semaphore])
993 # 2.6.18 don't export nr_pagecahe
994 AC_DEFUN([LC_NR_PAGECACHE],
995 [AC_MSG_CHECKING([kernel export nr_pagecache])
996 LB_LINUX_TRY_COMPILE([
997 #include <linux/pagemap.h>
999 return atomic_read(&nr_pagecache);
1002 AC_DEFINE(HAVE_NR_PAGECACHE, 1,
1003 [is kernel export nr_pagecache])
1010 # LC_STATFS_DENTRY_PARAM
1011 # starting from 2.6.18 linux kernel uses dentry instead of
1012 # super_block for first vfs_statfs argument
1014 AC_DEFUN([LC_STATFS_DENTRY_PARAM],
1015 [AC_MSG_CHECKING([first vfs_statfs parameter is dentry])
1016 LB_LINUX_TRY_COMPILE([
1017 #include <linux/fs.h>
1019 int vfs_statfs(struct dentry *, struct kstatfs *);
1021 AC_DEFINE(HAVE_STATFS_DENTRY_PARAM, 1,
1022 [first parameter of vfs_statfs is dentry])
1023 AC_MSG_RESULT([yes])
1031 # starting from 2.6.18 kernel don't export do_kern_mount
1032 # and want to use vfs_kern_mount instead.
1034 AC_DEFUN([LC_VFS_KERN_MOUNT],
1035 [AC_MSG_CHECKING([vfs_kern_mount exist in kernel])
1036 LB_LINUX_TRY_COMPILE([
1037 #include <linux/mount.h>
1039 vfs_kern_mount(NULL, 0, NULL, NULL);
1041 AC_DEFINE(HAVE_VFS_KERN_MOUNT, 1,
1042 [vfs_kern_mount exist in kernel])
1043 AC_MSG_RESULT([yes])
1050 # LC_INVALIDATEPAGE_RETURN_INT
1051 # 2.6.17 changes return type for invalidatepage to 'void' from 'int'
1053 AC_DEFUN([LC_INVALIDATEPAGE_RETURN_INT],
1054 [AC_MSG_CHECKING([invalidatepage has return int])
1055 LB_LINUX_TRY_COMPILE([
1056 #include <linux/buffer_head.h>
1058 int rc = block_invalidatepage(NULL, 0);
1061 AC_DEFINE(HAVE_INVALIDATEPAGE_RETURN_INT, 1,
1062 [Define if return type of invalidatepage should be int])
1068 # LC_UMOUNTBEGIN_HAS_VFSMOUNT
1069 # after 2.6.18 umount_begin has different parameters
1070 AC_DEFUN([LC_UMOUNTBEGIN_HAS_VFSMOUNT],
1071 [AC_MSG_CHECKING([if umount_begin needs vfsmount parameter instead of super_block])
1072 tmp_flags="$EXTRA_KCFLAGS"
1073 EXTRA_KCFLAGS="-Werror"
1074 LB_LINUX_TRY_COMPILE([
1075 #include <linux/fs.h>
1078 static void cfg_umount_begin (struct vfsmount *v, int flags)
1083 static struct super_operations cfg_super_operations = {
1084 .umount_begin = cfg_umount_begin,
1087 cfg_super_operations.umount_begin(NULL,0);
1090 AC_DEFINE(HAVE_UMOUNTBEGIN_VFSMOUNT, 1,
1091 [Define umount_begin need second argument])
1095 EXTRA_KCFLAGS="$tmp_flags"
1099 # after 2.6.18 seq_file has lock intead of sem
1100 AC_DEFUN([LC_SEQ_LOCK],
1101 [AC_MSG_CHECKING([if struct seq_file has lock field])
1102 LB_LINUX_TRY_COMPILE([
1103 #include <linux/seq_file.h>
1105 struct seq_file seq;
1107 mutex_unlock(&seq.lock);
1110 AC_DEFINE(HAVE_SEQ_LOCK, 1,
1111 [after 2.6.18 seq_file has lock intead of sem])
1118 # LC_EXPORT_FILEMAP_FDATAWRITE_RANGE
1120 # No standard kernels export this
1122 AC_DEFUN([LC_EXPORT_FILEMAP_FDATAWRITE_RANGE],
1123 [LB_CHECK_SYMBOL_EXPORT([filemap_fdatawrite_range],
1125 AC_DEFINE(HAVE_FILEMAP_FDATAWRITE_RANGE, 1,
1126 [filemap_fdatawrite_range is exported by the kernel])
1132 # starting from 2.6.18 the file_operations .flush
1133 # method has a new "fl_owner_t id" parameter
1135 AC_DEFUN([LC_FLUSH_OWNER_ID],
1136 [AC_MSG_CHECKING([if file_operations .flush has an fl_owner_t id])
1137 LB_LINUX_TRY_COMPILE([
1138 #include <linux/fs.h>
1140 struct file_operations *fops = NULL;
1144 i = fops->flush(NULL, id);
1146 AC_DEFINE(HAVE_FLUSH_OWNER_ID, 1,
1147 [file_operations .flush method has an fl_owner_t id])
1148 AC_MSG_RESULT([yes])
1155 # LC_EXPORT_INVALIDATE_MAPPING_PAGES
1157 # SLES9, RHEL4, RHEL5, vanilla 2.6.24 export invalidate_mapping_pages() but
1158 # SLES10 2.6.16 does not, for some reason. For filter cache invalidation.
1160 AC_DEFUN([LC_EXPORT_INVALIDATE_MAPPING_PAGES],
1161 [LB_CHECK_SYMBOL_EXPORT([invalidate_mapping_pages], [mm/truncate.c], [
1162 AC_DEFINE(HAVE_INVALIDATE_MAPPING_PAGES, 1,
1163 [exported invalidate_mapping_pages])],
1164 [LB_CHECK_SYMBOL_EXPORT([invalidate_inode_pages], [mm/truncate.c], [
1165 AC_DEFINE(HAVE_INVALIDATE_INODE_PAGES, 1,
1166 [exported invalidate_inode_pages])], [
1167 AC_MSG_ERROR([no way to invalidate pages])
1173 # LC_EXT4_DISCARD_PREALLOCATIONS
1175 AC_DEFUN([LC_EXT4_DISCARD_PREALLOCATIONS],
1176 [AC_MSG_CHECKING([if ext4_discard_preallocatoins defined])
1177 tmp_flags="$EXTRA_KCFLAGS"
1178 EXTRA_KCFLAGS="-I$LINUX/fs"
1179 LB_LINUX_TRY_COMPILE([
1180 #include <ext4/ext4.h>
1183 ext4_discard_preallocations(&i);
1186 AC_DEFINE(LDISKFS_DISCARD_PREALLOCATIONS, 1,
1187 [ext4_discard_preacllocations defined])
1191 EXTRA_KCFLAGS="$tmp_flags"
1195 # LC_EXT_INSERT_EXTENT_WITH_5ARGS
1197 AC_DEFUN([LC_EXT_INSERT_EXTENT_WITH_5ARGS],
1198 [AC_MSG_CHECKING([ext4_ext_insert_extent needs 5 arguments])
1199 tmp_flags="$EXTRA_KCFLAGS"
1200 EXTRA_KCFLAGS="-I$LINUX/fs"
1201 LB_LINUX_TRY_COMPILE([
1202 #include <ext4/ext4_extents.h>
1204 ext4_ext_insert_extent(NULL, NULL, NULL, NULL, 0);
1206 AC_DEFINE([EXT_INSERT_EXTENT_WITH_5ARGS], 1,
1207 [ext4_ext_insert_exent needs 5 arguments])
1208 AC_MSG_RESULT([yes])
1212 EXTRA_KCFLAGS="$tmp_flags"
1215 #2.6.18 + RHEL5 (fc6)
1217 # RHEL5 in FS-cache patch rename PG_checked flag into PG_fs_misc
1218 AC_DEFUN([LC_PG_FS_MISC],
1219 [AC_MSG_CHECKING([kernel has PG_fs_misc])
1220 LB_LINUX_TRY_COMPILE([
1221 #include <linux/mm.h>
1222 #include <linux/page-flags.h>
1225 #error PG_fs_misc not defined in kernel
1229 AC_DEFINE(HAVE_PG_FS_MISC, 1,
1230 [is kernel have PG_fs_misc])
1236 # RHEL5 PageChecked and SetPageChecked defined
1237 AC_DEFUN([LC_PAGE_CHECKED],
1238 [AC_MSG_CHECKING([kernel has PageChecked and SetPageChecked])
1239 LB_LINUX_TRY_COMPILE([
1240 #include <linux/autoconf.h>
1241 #ifdef HAVE_LINUX_MMTYPES_H
1242 #include <linux/mm_types.h>
1244 #include <linux/page-flags.h>
1248 /* before 2.6.26 this define*/
1250 /* 2.6.26 use function instead of define for it */
1256 AC_DEFINE(HAVE_PAGE_CHECKED, 1,
1257 [does kernel have PageChecked and SetPageChecked])
1266 # If we have fiemap.h
1267 # after 2.6.27 use fiemap.h in include/linux
1269 AC_DEFUN([LC_LINUX_FIEMAP_H],
1270 [LB_CHECK_FILE([$LINUX/include/linux/fiemap.h],[
1271 AC_MSG_CHECKING([if fiemap.h can be compiled])
1272 LB_LINUX_TRY_COMPILE([
1273 #include <linux/types.h>
1274 #include <linux/fiemap.h>
1276 AC_MSG_RESULT([yes])
1277 AC_DEFINE(HAVE_LINUX_FIEMAP_H, 1, [Kernel has fiemap.h])
1287 # 2.6.19 API changes
1288 # inode don't have i_blksize field
1289 AC_DEFUN([LC_INODE_BLKSIZE],
1290 [AC_MSG_CHECKING([inode has i_blksize field])
1291 LB_LINUX_TRY_COMPILE([
1292 #include <linux/fs.h>
1298 AC_DEFINE(HAVE_INODE_BLKSIZE, 1,
1299 [struct inode has i_blksize field])
1305 # LC_VFS_READDIR_U64_INO
1306 # 2.6.19 use u64 for inode number instead of inode_t
1307 AC_DEFUN([LC_VFS_READDIR_U64_INO],
1308 [AC_MSG_CHECKING([check vfs_readdir need 64bit inode number])
1309 tmp_flags="$EXTRA_KCFLAGS"
1310 EXTRA_KCFLAGS="-Werror"
1311 LB_LINUX_TRY_COMPILE([
1312 #include <linux/fs.h>
1313 int fillonedir(void * __buf, const char * name, int namlen, loff_t offset,
1314 u64 ino, unsigned int d_type)
1321 filter = fillonedir;
1325 AC_DEFINE(HAVE_VFS_READDIR_U64_INO, 1,
1326 [if vfs_readdir need 64bit inode number])
1330 EXTRA_KCFLAGS="$tmp_flags"
1334 # 2.6.19 replaced writev with aio_write
1335 AC_DEFUN([LC_FILE_WRITEV],
1336 [AC_MSG_CHECKING([writev in fops])
1337 LB_LINUX_TRY_COMPILE([
1338 #include <linux/fs.h>
1340 struct file_operations *fops = NULL;
1341 fops->writev = NULL;
1344 AC_DEFINE(HAVE_FILE_WRITEV, 1,
1352 # 2.6.19 replaced readv with aio_read
1353 AC_DEFUN([LC_FILE_READV],
1354 [AC_MSG_CHECKING([readv in fops])
1355 LB_LINUX_TRY_COMPILE([
1356 #include <linux/fs.h>
1358 struct file_operations *fops = NULL;
1362 AC_DEFINE(HAVE_FILE_READV, 1,
1371 # LC_CANCEL_DIRTY_PAGE
1372 # 2.6.20 introduced cancel_dirty_page instead of clear_page_dirty.
1373 AC_DEFUN([LC_CANCEL_DIRTY_PAGE],
1374 [AC_MSG_CHECKING([kernel has cancel_dirty_page])
1375 # the implementation of cancel_dirty_page in OFED 1.4.1's SLES10 SP2
1376 # backport is broken, so ignore it
1377 if test -f $OFED_BACKPORT_PATH/linux/mm.h &&
1378 test "$(sed -ne '/^static inline void cancel_dirty_page(struct page \*page, unsigned int account_size)$/,/^}$/p' $OFED_BACKPORT_PATH/linux/mm.h | md5sum)" = "c518cb32d6394760c5bca14cb7538d3e -"; then
1381 LB_LINUX_TRY_COMPILE([
1382 #include <linux/mm.h>
1383 #include <linux/page-flags.h>
1385 cancel_dirty_page(NULL, 0);
1388 AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
1389 [kernel has cancel_dirty_page instead of clear_page_dirty])
1396 # raid5-zerocopy patch
1401 # In order to support raid5 zerocopy patch, we have to patch the kernel to make
1402 # it support constant page, which means the page won't be modified during the
1405 AC_DEFUN([LC_PAGE_CONSTANT],
1406 [AC_MSG_CHECKING([if kernel have PageConstant defined])
1407 LB_LINUX_TRY_COMPILE([
1408 #include <linux/mm.h>
1409 #include <linux/page-flags.h>
1412 #error "Have no raid5 zcopy patch"
1416 AC_DEFINE(HAVE_PAGE_CONSTANT, 1, [kernel have PageConstant supported])
1424 # 2.6.22 lost second parameter for invalidate_bdev
1425 AC_DEFUN([LC_INVALIDATE_BDEV_2ARG],
1426 [AC_MSG_CHECKING([if invalidate_bdev has second argument])
1427 LB_LINUX_TRY_COMPILE([
1428 #include <linux/buffer_head.h>
1430 invalidate_bdev(NULL,0);
1432 AC_MSG_RESULT([yes])
1433 AC_DEFINE(HAVE_INVALIDATE_BDEV_2ARG, 1,
1434 [invalidate_bdev has second argument])
1441 # check for crypto API
1443 AC_DEFUN([LC_ASYNC_BLOCK_CIPHER],
1444 [AC_MSG_CHECKING([if kernel has block cipher support])
1445 LB_LINUX_TRY_COMPILE([
1446 #include <linux/err.h>
1447 #include <linux/crypto.h>
1449 struct crypto_blkcipher *tfm;
1450 tfm = crypto_alloc_blkcipher("aes", 0, 0 );
1452 AC_MSG_RESULT([yes])
1453 AC_DEFINE(HAVE_ASYNC_BLOCK_CIPHER, 1, [kernel has block cipher support])
1460 # check for struct hash_desc
1462 AC_DEFUN([LC_STRUCT_HASH_DESC],
1463 [AC_MSG_CHECKING([if kernel has struct hash_desc])
1464 LB_LINUX_TRY_COMPILE([
1465 #include <linux/err.h>
1466 #include <linux/crypto.h>
1468 struct hash_desc foo;
1470 AC_MSG_RESULT([yes])
1471 AC_DEFINE(HAVE_STRUCT_HASH_DESC, 1, [kernel has struct hash_desc])
1478 # check for struct blkcipher_desc
1480 AC_DEFUN([LC_STRUCT_BLKCIPHER_DESC],
1481 [AC_MSG_CHECKING([if kernel has struct blkcipher_desc])
1482 LB_LINUX_TRY_COMPILE([
1483 #include <linux/err.h>
1484 #include <linux/crypto.h>
1486 struct blkcipher_desc foo;
1488 AC_MSG_RESULT([yes])
1489 AC_DEFINE(HAVE_STRUCT_BLKCIPHER_DESC, 1, [kernel has struct blkcipher_desc])
1496 # 2.6.19 check for FS_RENAME_DOES_D_MOVE flag
1498 AC_DEFUN([LC_FS_RENAME_DOES_D_MOVE],
1499 [AC_MSG_CHECKING([if kernel has FS_RENAME_DOES_D_MOVE flag])
1500 LB_LINUX_TRY_COMPILE([
1501 #include <linux/fs.h>
1503 int v = FS_RENAME_DOES_D_MOVE;
1505 AC_MSG_RESULT([yes])
1506 AC_DEFINE(HAVE_FS_RENAME_DOES_D_MOVE, 1, [kernel has FS_RENAME_DOES_D_MOVE flag])
1514 # 2.6.23 have return type 'void' for unregister_blkdev
1515 AC_DEFUN([LC_UNREGISTER_BLKDEV_RETURN_INT],
1516 [AC_MSG_CHECKING([if unregister_blkdev return int])
1517 LB_LINUX_TRY_COMPILE([
1518 #include <linux/fs.h>
1520 int i = unregister_blkdev(0,NULL);
1522 AC_MSG_RESULT([yes])
1523 AC_DEFINE(HAVE_UNREGISTER_BLKDEV_RETURN_INT, 1,
1524 [unregister_blkdev return int])
1530 # 2.6.23 change .sendfile to .splice_read
1531 AC_DEFUN([LC_KERNEL_SPLICE_READ],
1532 [AC_MSG_CHECKING([if kernel has .splice_read])
1533 LB_LINUX_TRY_COMPILE([
1534 #include <linux/fs.h>
1536 struct file_operations file;
1538 file.splice_read = NULL;
1540 AC_MSG_RESULT([yes])
1541 AC_DEFINE(HAVE_KERNEL_SPLICE_READ, 1,
1542 [kernel has .slice_read])
1548 # 2.6.23 change .sendfile to .splice_read
1549 # RHEL4 (-92 kernel) have both sendfile and .splice_read API
1550 AC_DEFUN([LC_KERNEL_SENDFILE],
1551 [AC_MSG_CHECKING([if kernel has .sendfile])
1552 LB_LINUX_TRY_COMPILE([
1553 #include <linux/fs.h>
1555 struct file_operations file;
1557 file.sendfile = NULL;
1559 AC_MSG_RESULT([yes])
1560 AC_DEFINE(HAVE_KERNEL_SENDFILE, 1,
1561 [kernel has .sendfile])
1567 # 2.6.23 extract nfs export related data into exportfs.h
1568 AC_DEFUN([LC_HAVE_EXPORTFS_H],
1569 [LB_CHECK_FILE([$LINUX/include/linux/exportfs.h], [
1570 AC_DEFINE(HAVE_LINUX_EXPORTFS_H, 1,
1571 [kernel has include/exportfs.h])
1577 # 2.6.23 has new page fault handling API
1578 AC_DEFUN([LC_VM_OP_FAULT],
1579 [AC_MSG_CHECKING([kernel has .fault in vm_operation_struct])
1580 LB_LINUX_TRY_COMPILE([
1581 #include <linux/mm.h>
1583 struct vm_operations_struct op;
1587 AC_MSG_RESULT([yes])
1588 AC_DEFINE(HAVE_VM_OP_FAULT, 1,
1589 [kernel has .fault in vm_operation_struct])
1595 # 2.6.23 has new shrinker API
1596 AC_DEFUN([LC_REGISTER_SHRINKER],
1597 [LB_CHECK_SYMBOL_EXPORT([register_shrinker],
1599 AC_DEFINE(HAVE_REGISTER_SHRINKER, 1,
1600 [kernel exports register_shrinker])
1601 # 2.6.32 added another argument to struct shrinker->shrink
1602 AC_MSG_CHECKING([if passing shrinker as first argument])
1603 tmp_flags="$EXTRA_KCFLAGS"
1604 EXTRA_KCFLAGS="-Werror"
1605 LB_LINUX_TRY_COMPILE([
1606 #include <linux/mm.h>
1607 int test_shrink(struct shrinker *, int, gfp_t);
1609 struct shrinker *shr = NULL;
1610 shr->shrink = test_shrink;
1612 AC_MSG_RESULT([yes])
1613 AC_DEFINE(SHRINKER_FIRST_ARG, [struct shrinker *shrinker,],
1614 [kernel is passing shrinker as first argument])
1616 AC_DEFINE(SHRINKER_FIRST_ARG, ,
1617 [kernel is not passing shrinker as first argument])
1619 EXTRA_KCFLAGS="$tmp_flags"
1621 AC_DEFINE(SHRINKER_FIRST_ARG, ,
1622 [kernel does not exports register_shrinker,
1623 so SHRINKER_FIRST_ARG is empty])
1627 # 2.6.23 add code to wait other users to complete before removing procfs entry
1628 AC_DEFUN([LC_PROCFS_USERS],
1629 [AC_MSG_CHECKING([if kernel has pde_users member in procfs entry struct])
1630 LB_LINUX_TRY_COMPILE([
1631 #include <linux/proc_fs.h>
1633 struct proc_dir_entry pde;
1637 AC_MSG_RESULT([yes])
1638 AC_DEFINE(HAVE_PROCFS_USERS, 1,
1639 [kernel has pde_users member in procfs entry struct])
1645 # 2.6.23 exports exportfs_decode_fh
1646 AC_DEFUN([LC_EXPORTFS_DECODE_FH],
1647 [LB_CHECK_SYMBOL_EXPORT([exportfs_decode_fh],
1648 [fs/exportfs/expfs.c],[
1649 AC_DEFINE(HAVE_EXPORTFS_DECODE_FH, 1,
1650 [exportfs_decode_fh has been export])
1657 # 2.6.24 need linux/mm_types.h included
1658 AC_DEFUN([LC_HAVE_MMTYPES_H],
1659 [LB_CHECK_FILE([$LINUX/include/linux/mm_types.h], [
1660 AC_DEFINE(HAVE_LINUX_MMTYPES_H, 1,
1661 [kernel has include/mm_types.h])
1667 # 2.6.24 has bio_endio with 2 args
1668 AC_DEFUN([LC_BIO_ENDIO_2ARG],
1669 [AC_MSG_CHECKING([if kernel has bio_endio with 2 args])
1670 LB_LINUX_TRY_COMPILE([
1671 #include <linux/bio.h>
1675 AC_MSG_RESULT([yes])
1676 AC_DEFINE(HAVE_BIO_ENDIO_2ARG, 1,
1677 [kernel has bio_endio with 2 args])
1683 # 2.6.24 has new members in exports struct.
1684 AC_DEFUN([LC_FH_TO_DENTRY],
1685 [AC_MSG_CHECKING([if kernel has .fh_to_dentry member in export_operations struct])
1686 LB_LINUX_TRY_COMPILE([
1687 #ifdef HAVE_LINUX_EXPORTFS_H
1688 #include <linux/exportfs.h>
1690 #include <linux/fs.h>
1693 struct export_operations exp;
1695 exp.fh_to_dentry = NULL;
1697 AC_MSG_RESULT([yes])
1698 AC_DEFINE(HAVE_FH_TO_DENTRY, 1,
1699 [kernel has .fh_to_dentry member in export_operations struct])
1705 # 2.6.24 removes long aged procfs entry -> deleted member
1706 AC_DEFUN([LC_PROCFS_DELETED],
1707 [AC_MSG_CHECKING([if kernel has deleted member in procfs entry struct])
1708 LB_LINUX_TRY_COMPILE([
1709 #include <linux/proc_fs.h>
1711 struct proc_dir_entry pde;
1715 AC_MSG_RESULT([yes])
1716 AC_DEFINE(HAVE_PROCFS_DELETED, 1,
1717 [kernel has deleted member in procfs entry struct])
1723 # 2.6.24 has bdi_init()/bdi_destroy() functions.
1724 AC_DEFUN([LC_EXPORT_BDI_INIT],
1725 [LB_CHECK_SYMBOL_EXPORT([bdi_init],
1726 [mm/backing-dev.c],[
1727 AC_DEFINE(HAVE_BDI_INIT, 1,
1728 [bdi_init/bdi_destroy functions are present])
1735 # 2.6.25 change define to inline
1736 AC_DEFUN([LC_MAPPING_CAP_WRITEBACK_DIRTY],
1737 [AC_MSG_CHECKING([if kernel have mapping_cap_writeback_dirty])
1738 LB_LINUX_TRY_COMPILE([
1739 #include <linux/backing-dev.h>
1741 #ifndef mapping_cap_writeback_dirty
1742 mapping_cap_writeback_dirty(NULL);
1745 AC_MSG_RESULT([yes])
1746 AC_DEFINE(HAVE_MAPPING_CAP_WRITEBACK_DIRTY, 1,
1747 [kernel have mapping_cap_writeback_dirty])
1755 # 2.6.26 isn't export set_fs_pwd and change paramter in fs struct
1756 AC_DEFUN([LC_FS_STRUCT_USE_PATH],
1757 [AC_MSG_CHECKING([fs_struct use path structure])
1758 LB_LINUX_TRY_COMPILE([
1759 #include <asm/atomic.h>
1760 #include <linux/spinlock.h>
1761 #include <linux/fs_struct.h>
1764 struct fs_struct fs;
1768 AC_MSG_RESULT([yes])
1769 AC_DEFINE(HAVE_FS_STRUCT_USE_PATH, 1,
1770 [fs_struct use path structure])
1778 AC_DEFUN([LC_INODE_PERMISION_2ARGS],
1779 [AC_MSG_CHECKING([inode_operations->permission has two args])
1780 LB_LINUX_TRY_COMPILE([
1781 #include <linux/fs.h>
1783 struct inode *inode;
1785 inode->i_op->permission(NULL,0);
1787 AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
1788 [inode_operations->permission has two args])
1789 AC_MSG_RESULT([yes])
1795 # 2.6.27 has file_remove_suid instead of remove_suid
1796 AC_DEFUN([LC_FILE_REMOVE_SUID],
1797 [AC_MSG_CHECKING([kernel has file_remove_suid])
1798 LB_LINUX_TRY_COMPILE([
1799 #include <linux/fs.h>
1801 file_remove_suid(NULL);
1803 AC_DEFINE(HAVE_FILE_REMOVE_SUID, 1,
1804 [kernel have file_remove_suid])
1805 AC_MSG_RESULT([yes])
1811 # 2.6.27 have new page locking API
1812 AC_DEFUN([LC_TRYLOCKPAGE],
1813 [AC_MSG_CHECKING([kernel uses trylock_page for page lock])
1814 LB_LINUX_TRY_COMPILE([
1815 #include <linux/pagemap.h>
1819 AC_DEFINE(HAVE_TRYLOCK_PAGE, 1,
1820 [kernel uses trylock_page for page lock])
1821 AC_MSG_RESULT([yes])
1827 # 2.6.27 removed the read_inode from super_operations.
1828 AC_DEFUN([LC_READ_INODE_IN_SBOPS],
1829 [AC_MSG_CHECKING([super_operations has a read_inode field])
1830 LB_LINUX_TRY_COMPILE([
1831 #include <linux/fs.h>
1833 struct super_operations *sop;
1834 sop->read_inode(NULL);
1836 AC_DEFINE(HAVE_READ_INODE_IN_SBOPS, 1,
1837 [super_operations has a read_inode])
1838 AC_MSG_RESULT([yes])
1844 # 2.6.27 has inode_permission instead of permisson
1845 AC_DEFUN([LC_EXPORT_INODE_PERMISSION],
1846 [LB_CHECK_SYMBOL_EXPORT([inode_permission],
1848 AC_DEFINE(HAVE_EXPORT_INODE_PERMISSION, 1,
1849 [inode_permission is exported by the kernel])
1854 # 2.6.27 use 5th parameter in quota_on for remount.
1855 AC_DEFUN([LC_QUOTA_ON_5ARGS],
1856 [AC_MSG_CHECKING([quota_on needs 5 parameters])
1857 LB_LINUX_TRY_COMPILE([
1858 #include <linux/quota.h>
1860 struct quotactl_ops *qop;
1861 qop->quota_on(NULL, 0, 0, NULL, 0);
1863 AC_DEFINE(HAVE_QUOTA_ON_5ARGS, 1,
1864 [quota_on needs 5 paramters])
1865 AC_MSG_RESULT([yes])
1871 # 2.6.27 use 3th parameter in quota_off for remount.
1872 AC_DEFUN([LC_QUOTA_OFF_3ARGS],
1873 [AC_MSG_CHECKING([quota_off needs 3 parameters])
1874 LB_LINUX_TRY_COMPILE([
1875 #include <linux/quota.h>
1877 struct quotactl_ops *qop;
1878 qop->quota_off(NULL, 0, 0);
1880 AC_DEFINE(HAVE_QUOTA_OFF_3ARGS, 1,
1881 [quota_off needs 3 paramters])
1882 AC_MSG_RESULT([yes])
1888 # 2.6.27 has vfs_dq_off inline function.
1889 AC_DEFUN([LC_VFS_DQ_OFF],
1890 [AC_MSG_CHECKING([vfs_dq_off is defined])
1891 LB_LINUX_TRY_COMPILE([
1892 #include <linux/quotaops.h>
1894 vfs_dq_off(NULL, 0);
1896 AC_DEFINE(HAVE_VFS_DQ_OFF, 1, [vfs_dq_off is defined])
1897 AC_MSG_RESULT([yes])
1903 # LC_LOCK_MAP_ACQUIRE
1904 # after 2.6.27 lock_map_acquire replaces lock_acquire
1905 AC_DEFUN([LC_LOCK_MAP_ACQUIRE],
1906 [AC_MSG_CHECKING([if lock_map_acquire is defined])
1907 LB_LINUX_TRY_COMPILE([
1908 #include <linux/lockdep.h>
1910 lock_map_acquire(NULL);
1913 AC_DEFINE(HAVE_LOCK_MAP_ACQUIRE, 1,
1914 [lock_map_acquire is defined])
1920 # 2.6.27.15-2 sles11
1922 # 2.6.27 sles11 remove the bi_hw_segments
1923 AC_DEFUN([LC_BI_HW_SEGMENTS],
1924 [AC_MSG_CHECKING([struct bio has a bi_hw_segments field])
1925 LB_LINUX_TRY_COMPILE([
1926 #include <linux/bio.h>
1929 io.bi_hw_segments = 0;
1931 AC_DEFINE(HAVE_BI_HW_SEGMENTS, 1,
1932 [struct bio has a bi_hw_segments field])
1933 AC_MSG_RESULT([yes])
1940 # 2.6.27 sles11 move the quotaio_v1{2}.h from include/linux to fs
1941 # 2.6.32 move the quotaio_v1{2}.h from fs to fs/quota
1942 AC_DEFUN([LC_HAVE_QUOTAIO_V1_H],
1943 [LB_CHECK_FILE([$LINUX/include/linux/quotaio_v1.h],[
1944 AC_DEFINE(HAVE_QUOTAIO_V1_H, 1,
1945 [kernel has include/linux/quotaio_v1.h])
1946 ],[LB_CHECK_FILE([$LINUX/fs/quotaio_v1.h],[
1947 AC_DEFINE(HAVE_FS_QUOTAIO_V1_H, 1,
1948 [kernel has fs/quotaio_v1.h])
1949 ],[LB_CHECK_FILE([$LINUX/fs/quota/quotaio_v1.h],[
1950 AC_DEFINE(HAVE_FS_QUOTA_QUOTAIO_V1_H, 1,
1951 [kernel has fs/quota/quotaio_v1.h])
1959 # sles10 sp2 need 5 parameter for vfs_symlink
1960 AC_DEFUN([LC_VFS_SYMLINK_5ARGS],
1961 [AC_MSG_CHECKING([vfs_symlink need 5 parameter])
1962 LB_LINUX_TRY_COMPILE([
1963 #include <linux/fs.h>
1965 struct inode *dir = NULL;
1966 struct dentry *dentry = NULL;
1967 struct vfsmount *mnt = NULL;
1968 const char * path = NULL;
1969 vfs_symlink(dir, dentry, mnt, path, 0);
1971 AC_DEFINE(HAVE_VFS_SYMLINK_5ARGS, 1,
1972 [vfs_symlink need 5 parameteres])
1973 AC_MSG_RESULT([yes])
1979 # 2.6.27 sles11 has sb_any_quota_active
1980 AC_DEFUN([LC_SB_ANY_QUOTA_ACTIVE],
1981 [AC_MSG_CHECKING([Kernel has sb_any_quota_active])
1982 LB_LINUX_TRY_COMPILE([
1983 #include <linux/quotaops.h>
1985 sb_any_quota_active(NULL);
1987 AC_DEFINE(HAVE_SB_ANY_QUOTA_ACTIVE, 1,
1988 [Kernel has a sb_any_quota_active])
1989 AC_MSG_RESULT([yes])
1995 # 2.6.27 sles11 has sb_has_quota_active
1996 AC_DEFUN([LC_SB_HAS_QUOTA_ACTIVE],
1997 [AC_MSG_CHECKING([Kernel has sb_has_quota_active])
1998 LB_LINUX_TRY_COMPILE([
1999 #include <linux/quotaops.h>
2001 sb_has_quota_active(NULL, 0);
2003 AC_DEFINE(HAVE_SB_HAS_QUOTA_ACTIVE, 1,
2004 [Kernel has a sb_has_quota_active])
2005 AC_MSG_RESULT([yes])
2013 # 2.6.31 replaces blk_queue_hardsect_size by blk_queue_logical_block_size function
2014 AC_DEFUN([LC_BLK_QUEUE_LOG_BLK_SIZE],
2015 [AC_MSG_CHECKING([if blk_queue_logical_block_size is defined])
2016 LB_LINUX_TRY_COMPILE([
2017 #include <linux/blkdev.h>
2019 blk_queue_logical_block_size(NULL, 0);
2022 AC_DEFINE(HAVE_BLK_QUEUE_LOG_BLK_SIZE, 1,
2023 [blk_queue_logical_block_size is defined])
2031 # 2.6.32 add a limits member in struct request_queue.
2032 AC_DEFUN([LC_REQUEST_QUEUE_LIMITS],
2033 [AC_MSG_CHECKING([if request_queue has a limits field])
2034 LB_LINUX_TRY_COMPILE([
2035 #include <linux/blkdev.h>
2037 struct request_queue rq;
2038 rq.limits.io_min = 0;
2041 AC_DEFINE(HAVE_REQUEST_QUEUE_LIMITS, 1,
2042 [request_queue has a limits field])
2048 # 2.6.32 has bdi_register() functions.
2049 AC_DEFUN([LC_EXPORT_BDI_REGISTER],
2050 [LB_CHECK_SYMBOL_EXPORT([bdi_register],
2051 [mm/backing-dev.c],[
2052 AC_DEFINE(HAVE_BDI_REGISTER, 1,
2053 [bdi_register function is present])
2058 # 2.6.32 add s_bdi for super block
2059 AC_DEFUN([LC_SB_BDI],
2060 [AC_MSG_CHECKING([if super_block has s_bdi field])
2061 LB_LINUX_TRY_COMPILE([
2062 #include <linux/fs.h>
2064 struct super_block sb;
2068 AC_DEFINE(HAVE_SB_BDI, 1,
2069 [super_block has s_bdi field])
2075 # 2.6.32 removes blk_queue_max_sectors and add blk_queue_max_hw_sectors
2076 # check blk_queue_max_sectors and use it until disappear.
2077 AC_DEFUN([LC_BLK_QUEUE_MAX_SECTORS],
2078 [AC_MSG_CHECKING([if blk_queue_max_sectors is defined])
2079 LB_LINUX_TRY_COMPILE([
2080 #include <linux/blkdev.h>
2082 blk_queue_max_sectors(NULL, 0);
2085 AC_DEFINE(HAVE_BLK_QUEUE_MAX_SECTORS, 1,
2086 [blk_queue_max_sectors is defined])
2092 # 2.6.32 replaces 2 functions blk_queue_max_phys_segments and blk_queue_max_hw_segments by blk_queue_max_segments
2093 AC_DEFUN([LC_BLK_QUEUE_MAX_SEGMENTS],
2094 [AC_MSG_CHECKING([if blk_queue_max_segments is defined])
2095 LB_LINUX_TRY_COMPILE([
2096 #include <linux/blkdev.h>
2098 blk_queue_max_segments(NULL, 0);
2101 AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
2102 [blk_queue_max_segments is defined])
2109 # LC_EXT4_SINGLEDATA_TRANS_BLOCKS_SB
2111 AC_DEFUN([LC_EXT4_SINGLEDATA_TRANS_BLOCKS_SB],
2112 [AC_MSG_CHECKING([if EXT4_SINGLEDATA_TRANS_BLOCKS takes the sb as argument])
2113 tmp_flags="$EXTRA_KCFLAGS"
2114 EXTRA_KCFLAGS="-I$LINUX/fs"
2115 LB_LINUX_TRY_COMPILE([
2116 #include <ext4/ext4.h>
2117 #include <ext4/ext4_jbd2.h>
2119 struct super_block sb;
2120 EXT4_SINGLEDATA_TRANS_BLOCKS(&sb);
2123 AC_DEFINE(LDISKFS_SINGLEDATA_TRANS_BLOCKS_HAS_SB, 1,
2124 [EXT4_SINGLEDATA_TRANS_BLOCKS takes sb as argument])
2128 EXTRA_KCFLAGS="$tmp_flags"
2134 # Check if kernel has been patched for 64-bit quota limits support.
2135 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
2136 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
2137 # that in the absence of quotaio_v1.h in the kernel headers.
2139 AC_DEFUN([LC_QUOTA64],[
2140 AC_MSG_CHECKING([if kernel has 64-bit quota limits support])
2141 tmp_flags="$EXTRA_KCFLAGS"
2142 EXTRA_KCFLAGS="-I$LINUX/fs"
2143 LB_LINUX_TRY_COMPILE([
2144 #include <linux/kernel.h>
2145 #include <linux/fs.h>
2146 #ifdef HAVE_QUOTAIO_V1_H
2147 # include <linux/quotaio_v2.h>
2148 int versions[] = V2_INITQVERSIONS_R1;
2149 struct v2_disk_dqblk_r1 dqblk_r1;
2150 #elif defined(HAVE_FS_QUOTA_QUOTAIO_V1_H)
2151 # include <quota/quotaio_v2.h>
2152 struct v2r1_disk_dqblk dqblk_r1;
2153 #elif defined(HAVE_FS_QUOTAIO_V1_H)
2154 # include <quotaio_v2.h>
2155 struct v2r1_disk_dqblk dqblk_r1;
2157 #include <linux/quota.h>
2158 int ver = QFMT_VFS_V1;
2161 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
2162 AC_MSG_RESULT([yes])
2164 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
2165 AC_MSG_ERROR([You have got no 64-bit kernel quota support.])
2169 EXTRA_KCFLAGS=$tmp_flags
2174 # starting from 2.6.28 kernel replaces d_alloc_anon() with
2175 # d_obtain_alias() for getting anonymous dentries
2177 AC_DEFUN([LC_D_OBTAIN_ALIAS],
2178 [AC_MSG_CHECKING([d_obtain_alias exist in kernel])
2179 LB_LINUX_TRY_COMPILE([
2180 #include <linux/dcache.h>
2182 d_obtain_alias(NULL);
2184 AC_DEFINE(HAVE_D_OBTAIN_ALIAS, 1,
2185 [d_obtain_alias exist in kernel])
2186 AC_MSG_RESULT([yes])
2196 # Lustre linux kernel checks
2198 AC_DEFUN([LC_PROG_LINUX],
2199 [LC_LUSTRE_VERSION_H
2200 if test x$enable_server = xyes ; then
2201 AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
2202 LC_FUNC_DEV_SET_RDONLY
2208 LC_CONFIG_LIBLUSTRE_RECOVERY
2209 LC_CONFIG_HEALTH_CHECK_WRITE
2210 LC_CONFIG_LRU_RESIZE
2212 LC_LLITE_LLOOP_MODULE
2215 LC_EXPORT_TRUNCATE_COMPLETE
2216 LC_EXPORT_TRUNCATE_RANGE
2217 LC_EXPORT_D_REHASH_COND
2218 LC_EXPORT___D_REHASH
2219 LC_EXPORT_D_MOVE_LOCKED
2221 LC_EXPORT_NODE_TO_CPUMASK
2223 LC_HEADER_LDISKFS_XATTR
2224 LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
2231 LC_POSIX_ACL_XATTR_H
2234 LC_STRUCT_INTENT_FILE
2239 LC_FUNC_HAVE_CAN_SLEEP_ARG
2242 LC_COOKIE_FOLLOW_LINK
2253 LC_EXPORT_SYNCHRONIZE_RCU
2259 LC_SECURITY_PLUG # for SLES10 SP2
2267 LC_STATFS_DENTRY_PARAM
2269 LC_INVALIDATEPAGE_RETURN_INT
2270 LC_UMOUNTBEGIN_HAS_VFSMOUNT
2272 LC_EXPORT_FILEMAP_FDATAWRITE_RANGE
2274 if test x$enable_server = xyes ; then
2275 LC_EXPORT_INVALIDATE_MAPPING_PAGES
2277 LC_EXT4_DISCARD_PREALLOCATIONS
2278 LC_EXT_INSERT_EXTENT_WITH_5ARGS
2280 #2.6.18 + RHEL5 (fc6)
2287 LC_VFS_READDIR_U64_INO
2292 LC_CANCEL_DIRTY_PAGE
2294 # raid5-zerocopy patch
2298 LC_INVALIDATE_BDEV_2ARG
2299 LC_ASYNC_BLOCK_CIPHER
2301 LC_STRUCT_BLKCIPHER_DESC
2302 LC_FS_RENAME_DOES_D_MOVE
2305 LC_UNREGISTER_BLKDEV_RETURN_INT
2306 LC_KERNEL_SPLICE_READ
2310 LC_REGISTER_SHRINKER
2312 LC_EXPORTFS_DECODE_FH
2322 LC_MAPPING_CAP_WRITEBACK_DIRTY
2325 LC_FS_STRUCT_USE_PATH
2328 LC_INODE_PERMISION_2ARGS
2331 LC_READ_INODE_IN_SBOPS
2332 LC_EXPORT_INODE_PERMISSION
2338 # 2.6.27.15-2 sles11
2340 LC_HAVE_QUOTAIO_V1_H
2341 LC_VFS_SYMLINK_5ARGS
2342 LC_SB_ANY_QUOTA_ACTIVE
2343 LC_SB_HAS_QUOTA_ACTIVE
2346 LC_BLK_QUEUE_LOG_BLK_SIZE
2349 LC_REQUEST_QUEUE_LIMITS
2350 LC_EXPORT_BDI_REGISTER
2352 LC_BLK_QUEUE_MAX_SECTORS
2353 LC_BLK_QUEUE_MAX_SEGMENTS
2354 LC_EXT4_SINGLEDATA_TRANS_BLOCKS_SB
2357 if test x$enable_server = xyes ; then
2358 if test x$enable_quota_module = xyes ; then
2359 LC_QUOTA64 # must after LC_HAVE_QUOTAIO_V1_H
2365 # LC_CONFIG_CLIENT_SERVER
2367 # Build client/server sides of Lustre
2369 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
2370 [AC_MSG_CHECKING([whether to build Lustre server support])
2371 AC_ARG_ENABLE([server],
2372 AC_HELP_STRING([--disable-server],
2373 [disable Lustre server support]),
2374 [],[enable_server='yes'])
2375 AC_MSG_RESULT([$enable_server])
2377 AC_MSG_CHECKING([whether to build Lustre client support])
2378 AC_ARG_ENABLE([client],
2379 AC_HELP_STRING([--disable-client],
2380 [disable Lustre client support]),
2381 [],[enable_client='yes'])
2382 AC_MSG_RESULT([$enable_client])])
2385 # LC_CONFIG_LIBLUSTRE
2387 # whether to build liblustre
2389 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
2390 [AC_MSG_CHECKING([whether to build Lustre library])
2391 AC_ARG_ENABLE([liblustre],
2392 AC_HELP_STRING([--disable-liblustre],
2393 [disable building of Lustre library]),
2394 [],[enable_liblustre=$with_sysio])
2395 AC_MSG_RESULT([$enable_liblustre])
2396 # only build sysio if liblustre is built
2397 with_sysio="$enable_liblustre"
2399 AC_MSG_CHECKING([whether to build liblustre tests])
2400 AC_ARG_ENABLE([liblustre-tests],
2401 AC_HELP_STRING([--enable-liblustre-tests],
2402 [enable liblustre tests, if --disable-tests is used]),
2403 [],[enable_liblustre_tests=$enable_tests])
2404 if test x$enable_liblustre != xyes ; then
2405 enable_liblustre_tests='no'
2407 AC_MSG_RESULT([$enable_liblustre_tests])
2409 AC_MSG_CHECKING([whether to enable liblustre acl])
2410 AC_ARG_ENABLE([liblustre-acl],
2411 AC_HELP_STRING([--disable-liblustre-acl],
2412 [disable ACL support for liblustre]),
2413 [],[enable_liblustre_acl=yes])
2414 AC_MSG_RESULT([$enable_liblustre_acl])
2415 if test x$enable_liblustre_acl = xyes ; then
2416 AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
2419 # 2.6.29 change prepare/commit_write to write_begin/end
2420 AC_DEFUN([LC_WRITE_BEGIN_END],
2421 [AC_MSG_CHECKING([if kernel has .write_begin/end])
2422 LB_LINUX_TRY_COMPILE([
2423 #include <linux/fs.h>
2424 #include <linux/pagemap.h>
2425 #ifdef HAVE_LINUX_MMTYPES_H
2426 #include <linux/mm_types.h>
2429 struct address_space_operations aops;
2432 aops.write_begin = NULL;
2433 aops.write_end = NULL;
2434 page = grab_cache_page_write_begin(NULL, 0, 0);
2436 AC_MSG_RESULT([yes])
2437 AC_DEFINE(HAVE_KERNEL_WRITE_BEGIN_END, 1,
2438 [kernel has .write_begin/end])
2444 # 2.6.29 blkdev_put has 2 arguments
2445 AC_DEFUN([LC_BLKDEV_PUT_2ARGS],
2446 [AC_MSG_CHECKING([blkdev_put needs 2 parameters])
2447 LB_LINUX_TRY_COMPILE([
2448 #include <linux/fs.h>
2450 blkdev_put(NULL, 0);
2452 AC_DEFINE(HAVE_BLKDEV_PUT_2ARGS, 1,
2453 [blkdev_put needs 2 paramters])
2454 AC_MSG_RESULT([yes])
2460 # 2.6.29 dentry_open has 4 arguments
2461 AC_DEFUN([LC_DENTRY_OPEN_4ARGS],
2462 [AC_MSG_CHECKING([dentry_open needs 4 parameters])
2463 LB_LINUX_TRY_COMPILE([
2464 #include <linux/fs.h>
2466 dentry_open(NULL, NULL, 0, NULL);
2468 AC_DEFINE(HAVE_DENTRY_OPEN_4ARGS, 1,
2469 [dentry_open needs 4 paramters])
2470 AC_MSG_RESULT([yes])
2479 AC_ARG_ENABLE(mpitests,
2480 AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
2481 [include mpi tests]),
2492 MPICC_WRAPPER=$enableval
2502 if test x$enable_mpitests != xno; then
2503 AC_MSG_CHECKING([whether mpitests can be built])
2511 MPI_Initialized(&flag);
2514 AC_MSG_RESULT([yes])
2521 AC_SUBST(MPICC_WRAPPER)
2523 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
2524 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
2527 LC_CONFIG_LIBLUSTRE_RECOVERY
2533 # whether to enable quota support global control
2535 AC_DEFUN([LC_CONFIG_QUOTA],
2536 [AC_ARG_ENABLE([quota],
2537 AC_HELP_STRING([--enable-quota],
2538 [enable quota support]),
2539 [],[enable_quota='yes'])
2542 AC_DEFUN([LC_QUOTA],
2546 AC_CHECK_HEADER(sys/quota.h,
2547 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
2548 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
2554 # whether to enable split support
2556 AC_DEFUN([LC_CONFIG_SPLIT],
2557 [AC_MSG_CHECKING([whether to enable split support])
2558 AC_ARG_ENABLE([split],
2559 AC_HELP_STRING([--enable-split],
2560 [enable split support]),
2561 [],[enable_split='no'])
2562 AC_MSG_RESULT([$enable_split])
2563 if test x$enable_split != xno; then
2564 AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
2568 AC_DEFUN([LC_TASK_CLENV_TUX_INFO],
2569 [AC_MSG_CHECKING([tux_info])
2570 LB_LINUX_TRY_COMPILE([
2571 #include <linux/sched.h>
2573 struct task_struct task;
2576 AC_MSG_RESULT([yes])
2577 AC_DEFINE(LL_TASK_CL_ENV, tux_info, [have tux_info])
2578 have_task_clenv_store='yes'
2585 # LC_LLITE_LLOOP_MODULE
2586 # lloop_llite.ko does not currently work with page sizes
2589 AC_DEFUN([LC_LLITE_LLOOP_MODULE],
2590 [AC_MSG_CHECKING([whether to enable llite_lloop module])
2591 LB_LINUX_TRY_COMPILE([
2592 #include <asm/page.h>
2594 #if PAGE_SIZE >= 65536
2595 #error "PAGE_SIZE >= 65536"
2598 enable_llite_lloop_module='yes'
2599 AC_MSG_RESULT([yes])
2601 enable_llite_lloop_module='no'
2609 # other configure checks
2611 AC_DEFUN([LC_CONFIGURE],
2612 [LC_CONFIG_OBD_BUFFER_SIZE
2614 if test $target_cpu == "i686" -o $target_cpu == "x86_64"; then
2615 CFLAGS="$CFLAGS -Werror"
2618 # include/liblustre.h
2619 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
2621 # liblustre/llite_lib.h
2622 AC_CHECK_HEADERS([xtio.h file.h])
2625 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
2628 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
2629 AC_CHECK_FUNCS([inet_ntoa])
2631 # libsysio/src/readlink.c
2634 # lvfs/prng.c - depends on linux/types.h from liblustre/dir.c
2635 AC_CHECK_HEADERS([linux/random.h], [], [],
2636 [#ifdef HAVE_LINUX_TYPES_H
2637 # include <linux/types.h>
2642 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
2644 # check for -lz support
2648 [AC_CHECK_HEADERS([zlib.h],
2650 AC_DEFINE([HAVE_ADLER], 1,
2651 [support alder32 checksum type])],
2652 [AC_MSG_WARN([No zlib-devel package found,
2653 unable to use adler32 checksum])])],
2654 [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
2659 AC_ARG_ENABLE([mindf],
2660 AC_HELP_STRING([--enable-mindf],
2661 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
2663 if test "$enable_mindf" = "yes" ; then
2664 AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
2667 AC_ARG_ENABLE([fail_alloc],
2668 AC_HELP_STRING([--disable-fail-alloc],
2669 [disable randomly alloc failure]),
2670 [],[enable_fail_alloc=yes])
2671 AC_MSG_CHECKING([whether to randomly failing memory alloc])
2672 AC_MSG_RESULT([$enable_fail_alloc])
2673 if test x$enable_fail_alloc != xno ; then
2674 AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
2677 AC_ARG_ENABLE([invariants],
2678 AC_HELP_STRING([--enable-invariants],
2679 [enable invariant checking (cpu intensive)]),
2681 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
2682 AC_MSG_RESULT([$enable_invariants])
2683 if test x$enable_invariants = xyes ; then
2684 AC_DEFINE([INVARIANT_CHECK], 1, [enable invariant checking])
2687 AC_ARG_ENABLE([lu_ref],
2688 AC_HELP_STRING([--enable-lu_ref],
2689 [enable lu_ref reference tracking code]),
2691 AC_MSG_CHECKING([whether to track references with lu_ref])
2692 AC_MSG_RESULT([$enable_lu_ref])
2693 if test x$enable_lu_ref = xyes ; then
2694 AC_DEFINE([USE_LU_REF], 1, [enable lu_ref reference tracking code])
2697 AC_ARG_ENABLE([pgstate-track],
2698 AC_HELP_STRING([--enable-pgstate-track],
2699 [enable page state tracking]),
2700 [enable_pgstat_track='yes'],[])
2701 AC_MSG_CHECKING([whether to enable page state tracking])
2702 AC_MSG_RESULT([$enable_pgstat_track])
2703 if test x$enable_pgstat_track = xyes ; then
2704 AC_DEFINE([LUSTRE_PAGESTATE_TRACKING], 1,
2705 [enable page state tracking code])
2712 LC_DENTRY_OPEN_4ARGS
2719 # AM_CONDITIONALS for lustre
2721 AC_DEFUN([LC_CONDITIONALS],
2722 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
2723 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
2724 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
2725 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
2726 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
2727 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
2728 AM_CONDITIONAL(QUOTA, test x$enable_quota_module = xyes)
2729 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
2730 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
2731 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
2732 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
2733 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
2734 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
2735 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
2736 AM_CONDITIONAL(LLITE_LLOOP, test x$enable_llite_lloop_module = xyes)
2742 # files that should be generated with AC_OUTPUT
2744 AC_DEFUN([LC_CONFIG_FILES],
2748 lustre/autoconf/Makefile
2749 lustre/conf/Makefile
2750 lustre/contrib/Makefile
2752 lustre/include/Makefile
2753 lustre/include/lustre_ver.h
2754 lustre/include/linux/Makefile
2755 lustre/include/lustre/Makefile
2756 lustre/kernel_patches/targets/2.6-rhel6.target
2757 lustre/kernel_patches/targets/2.6-rhel5.target
2758 lustre/kernel_patches/targets/2.6-sles10.target
2759 lustre/kernel_patches/targets/2.6-sles11.target
2760 lustre/kernel_patches/targets/2.6-oel5.target
2761 lustre/kernel_patches/targets/2.6-fc11.target
2762 lustre/kernel_patches/targets/2.6-fc12.target
2763 lustre/ldlm/Makefile
2765 lustre/fid/autoMakefile
2766 lustre/liblustre/Makefile
2767 lustre/liblustre/tests/Makefile
2768 lustre/liblustre/tests/mpi/Makefile
2769 lustre/llite/Makefile
2770 lustre/llite/autoMakefile
2771 lustre/lclient/Makefile
2773 lustre/lov/autoMakefile
2774 lustre/lvfs/Makefile
2775 lustre/lvfs/autoMakefile
2777 lustre/mdc/autoMakefile
2779 lustre/lmv/autoMakefile
2781 lustre/mds/autoMakefile
2783 lustre/mdt/autoMakefile
2785 lustre/cmm/autoMakefile
2787 lustre/mdd/autoMakefile
2789 lustre/fld/autoMakefile
2790 lustre/obdclass/Makefile
2791 lustre/obdclass/autoMakefile
2792 lustre/obdclass/linux/Makefile
2793 lustre/obdecho/Makefile
2794 lustre/obdecho/autoMakefile
2795 lustre/obdfilter/Makefile
2796 lustre/obdfilter/autoMakefile
2798 lustre/osc/autoMakefile
2800 lustre/ost/autoMakefile
2801 lustre/osd-ldiskfs/Makefile
2802 lustre/osd-ldiskfs/autoMakefile
2804 lustre/mgc/autoMakefile
2806 lustre/mgs/autoMakefile
2807 lustre/ptlrpc/Makefile
2808 lustre/ptlrpc/autoMakefile
2809 lustre/ptlrpc/gss/Makefile
2810 lustre/ptlrpc/gss/autoMakefile
2811 lustre/quota/Makefile
2812 lustre/quota/autoMakefile
2813 lustre/scripts/Makefile
2814 lustre/tests/Makefile
2815 lustre/tests/mpi/Makefile
2816 lustre/utils/Makefile
2817 lustre/utils/gss/Makefile
2818 lustre/obdclass/darwin/Makefile