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$enable_quota != xno; then
271 LB_LINUX_CONFIG([QUOTA],[
272 enable_quota_module='yes'
273 AC_DEFINE(HAVE_QUOTA_SUPPORT, 1, [Enable quota support])
275 enable_quota_module='no'
276 AC_MSG_WARN([quota is not enabled because the kernel - lacks quota support])
281 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE],
282 [LB_CHECK_SYMBOL_EXPORT([truncate_complete_page],
284 AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
285 [kernel export truncate_complete_page])
290 AC_DEFUN([LC_EXPORT_TRUNCATE_RANGE],
291 [LB_CHECK_SYMBOL_EXPORT([truncate_inode_pages_range],
293 AC_DEFINE(HAVE_TRUNCATE_RANGE, 1,
294 [kernel export truncate_inode_pages_range])
299 AC_DEFUN([LC_EXPORT_D_REHASH_COND],
300 [LB_CHECK_SYMBOL_EXPORT([d_rehash_cond],
302 AC_DEFINE(HAVE_D_REHASH_COND, 1,
303 [d_rehash_cond is exported by the kernel])
308 AC_DEFUN([LC_EXPORT___D_REHASH],
309 [LB_CHECK_SYMBOL_EXPORT([__d_rehash],
311 AC_DEFINE(HAVE___D_REHASH, 1,
312 [__d_rehash is exported by the kernel])
317 # The actual symbol exported varies among architectures, so we need
318 # to check many symbols (but only in the current architecture.) No
319 # matter what symbol is exported, the kernel #defines node_to_cpumask
320 # to the appropriate function and that's what we use.
321 AC_DEFUN([LC_EXPORT_NODE_TO_CPUMASK],
322 [LB_CHECK_SYMBOL_EXPORT([node_to_cpumask],
323 [arch/$LINUX_ARCH/mm/numa.c],
324 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
325 [node_to_cpumask is exported by
326 the kernel])]) # x86_64
327 LB_CHECK_SYMBOL_EXPORT([node_to_cpu_mask],
328 [arch/$LINUX_ARCH/kernel/smpboot.c],
329 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
330 [node_to_cpumask is exported by
331 the kernel])]) # ia64
332 LB_CHECK_SYMBOL_EXPORT([node_2_cpu_mask],
333 [arch/$LINUX_ARCH/kernel/smpboot.c],
334 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
335 [node_to_cpumask is exported by
336 the kernel])]) # i386
340 # LC_HEADER_LDISKFS_XATTR
342 # CHAOS kernel-devel package will not include fs/ldiskfs/xattr.h
344 AC_DEFUN([LC_HEADER_LDISKFS_XATTR],
345 [AC_MSG_CHECKING([if ldiskfs has xattr.h header])
346 tmp_flags="$EXTRA_KCFLAGS"
347 EXTRA_KCFLAGS="-I$LINUX/fs -I$LDISKFS_DIR -I$LDISKFS_DIR/ldiskfs"
348 LB_LINUX_TRY_COMPILE([
349 #include <ldiskfs/xattr.h>
351 ldiskfs_xattr_get(NULL, 0, "", NULL, 0);
352 ldiskfs_xattr_set_handle(NULL, NULL, 0, "", NULL, 0, 0);
356 AC_DEFINE(HAVE_LDISKFS_XATTR_H, 1, [ldiskfs/xattr.h found])
360 EXTRA_KCFLAGS="$tmp_flags"
364 # LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
366 # Check for our patched grab_cache_page_nowait_gfp() function
367 # after 2.6.29 we can emulate this using add_to_page_cache_lru()
369 AC_DEFUN([LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP],
370 [LB_CHECK_SYMBOL_EXPORT([grab_cache_page_nowait_gfp],
372 AC_DEFINE(HAVE_GRAB_CACHE_PAGE_NOWAIT_GFP, 1,
373 [kernel exports grab_cache_page_nowait_gfp])
375 [LB_CHECK_SYMBOL_EXPORT([add_to_page_cache_lru],
377 AC_DEFINE(HAVE_ADD_TO_PAGE_CACHE_LRU, 1,
378 [kernel exports add_to_page_cache_lru])
387 # AIX does not have statfs.f_namelen
389 AC_DEFUN([LC_STRUCT_STATFS],
390 [AC_MSG_CHECKING([if struct statfs has a f_namelen field])
391 LB_LINUX_TRY_COMPILE([
392 #include <linux/vfs.h>
398 AC_DEFINE(HAVE_STATFS_NAMELEN, 1, [struct statfs has a namelen field])
405 # between 2.6.5 - 2.6.22 filemap_populate is exported in some kernels
407 AC_DEFUN([LC_FILEMAP_POPULATE],
408 [AC_MSG_CHECKING([for exported filemap_populate])
409 LB_LINUX_TRY_COMPILE([
410 #include <asm/page.h>
411 #include <linux/mm.h>
413 filemap_populate(NULL, 0, 0, __pgprot(0), 0, 0);
416 AC_DEFINE(HAVE_FILEMAP_POPULATE, 1, [Kernel exports filemap_populate])
425 AC_DEFUN([LC_D_ADD_UNIQUE],
426 [AC_MSG_CHECKING([for d_add_unique])
427 LB_LINUX_TRY_COMPILE([
428 #include <linux/dcache.h>
430 d_add_unique(NULL, NULL);
433 AC_DEFINE(HAVE_D_ADD_UNIQUE, 1, [Kernel has d_add_unique])
442 AC_DEFUN([LC_BIT_SPINLOCK_H],
443 [LB_CHECK_FILE([$LINUX/include/linux/bit_spinlock.h],[
444 AC_MSG_CHECKING([if bit_spinlock.h can be compiled])
445 LB_LINUX_TRY_COMPILE([
446 #include <asm/processor.h>
447 #include <linux/spinlock.h>
448 #include <linux/bit_spinlock.h>
451 AC_DEFINE(HAVE_BIT_SPINLOCK_H, 1, [Kernel has bit_spinlock.h])
460 # After 2.6.26 we no longer have xattr_acl.h
462 AC_DEFUN([LC_XATTR_ACL],
463 [LB_CHECK_FILE([$LINUX/include/linux/xattr_acl.h],[
464 AC_MSG_CHECKING([if xattr_acl.h can be compiled])
465 LB_LINUX_TRY_COMPILE([
466 #include <linux/xattr_acl.h>
469 AC_DEFINE(HAVE_XATTR_ACL, 1, [Kernel has xattr_acl])
478 # After 2.6.16 the xattr_acl API is removed, and posix_acl is used instead
480 AC_DEFUN([LC_POSIX_ACL_XATTR_H],
481 [LB_CHECK_FILE([$LINUX/include/linux/posix_acl_xattr.h],[
482 AC_MSG_CHECKING([if linux/posix_acl_xattr.h can be compiled])
483 LB_LINUX_TRY_COMPILE([
484 #include <linux/fs.h>
485 #include <linux/posix_acl_xattr.h>
488 AC_DEFINE(HAVE_LINUX_POSIX_ACL_XATTR_H, 1, [linux/posix_acl_xattr.h found])
499 AC_DEFUN([LC_CONST_ACL_SIZE],
500 [AC_MSG_CHECKING([calc acl size])
502 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"
505 #include <linux/autoconf.h>
506 #include <linux/types.h>
509 #define __LINUX_POSIX_ACL_H
511 # ifdef CONFIG_FS_POSIX_ACL
512 # ifdef HAVE_XATTR_ACL
513 # include <linux/xattr_acl.h>
515 # ifdef HAVE_LINUX_POSIX_ACL_XATTR_H
516 # include <linux/posix_acl_xattr.h>
520 #include <lustre_acl.h>
526 int size = mds_xattr_acl_size(LUSTRE_POSIX_ACL_MAX_ENTRIES);
527 FILE *f = fopen("acl.size","w+");
528 fprintf(f,"%d", size);
534 acl_size=`cat acl.size`
535 AC_MSG_RESULT([ACL size $acl_size])
536 AC_DEFINE_UNQUOTED(XATTR_ACL_SIZE, AS_TR_SH([$acl_size]), [size of xattr acl])
538 AC_ERROR([ACL size can't computed])
545 AC_DEFUN([LC_STRUCT_INTENT_FILE],
546 [AC_MSG_CHECKING([if struct open_intent has a file field])
547 LB_LINUX_TRY_COMPILE([
548 #include <linux/fs.h>
549 #include <linux/namei.h>
551 struct open_intent intent;
555 AC_DEFINE(HAVE_FILE_IN_STRUCT_INTENT, 1, [struct open_intent has a file field])
564 AC_DEFUN([LC_CAPA_CRYPTO],
565 [LB_LINUX_CONFIG_IM([CRYPTO],[],[
566 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])
568 LB_LINUX_CONFIG_IM([CRYPTO_HMAC],[],[
569 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])
571 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],[
572 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])
577 # LC_CONFIG_RMTCLIENT
580 dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
582 AC_DEFUN([LC_CONFIG_RMTCLIENT],
583 [LB_LINUX_CONFIG_IM([CRYPTO_AES],[],[
584 AC_MSG_WARN([Lustre remote client require that CONFIG_CRYPTO_AES is enabled in your kernel.])
589 # LC_CONFIG_GSS_KEYRING (default enabled, if gss is enabled)
591 AC_DEFUN([LC_CONFIG_GSS_KEYRING],
592 [AC_MSG_CHECKING([whether to enable gss keyring backend])
593 AC_ARG_ENABLE([gss_keyring],
594 [AC_HELP_STRING([--disable-gss-keyring],
595 [disable gss keyring backend])],
596 [],[enable_gss_keyring='yes'])
597 AC_MSG_RESULT([$enable_gss_keyring])
599 if test x$enable_gss_keyring != xno; then
600 LB_LINUX_CONFIG_IM([KEYS],[],
601 [AC_MSG_ERROR([GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.])])
603 AC_CHECK_LIB([keyutils], [keyctl_search], [],
604 [AC_MSG_ERROR([libkeyutils is not found, which is required by gss keyring backend])],)
606 AC_DEFINE([HAVE_GSS_KEYRING], [1],
607 [Define this if you enable gss keyring backend])
611 AC_DEFUN([LC_SUNRPC_CACHE],
612 [AC_MSG_CHECKING([if sunrpc struct cache_head uses kref])
613 LB_LINUX_TRY_COMPILE([
614 #include <linux/sunrpc/cache.h>
616 struct cache_head ch;
620 AC_DEFINE(HAVE_SUNRPC_CACHE_V2, 1, [sunrpc cache facility v2])
626 AC_DEFUN([LC_CONFIG_SUNRPC],
627 [LB_LINUX_CONFIG_IM([SUNRPC],[],
628 [AC_MSG_ERROR([kernel SUNRPC support is required by using GSS.])])
633 # LC_CONFIG_GSS (default disabled)
635 # Build gss and related tools of Lustre. Currently both kernel and user space
636 # parts are depend on linux platform.
638 AC_DEFUN([LC_CONFIG_GSS],
639 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
641 [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
642 [],[enable_gss='no'])
643 AC_MSG_RESULT([$enable_gss])
645 if test x$enable_gss == xyes; then
646 LC_CONFIG_GSS_KEYRING
649 AC_DEFINE([HAVE_GSS], [1], [Define this if you enable gss])
651 LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
652 [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
653 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
654 [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
655 LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
656 [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
657 LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
658 [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
660 AC_CHECK_LIB([gssapi], [gss_init_sec_context],
661 [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"],
662 [AC_CHECK_LIB([gssglue], [gss_init_sec_context],
663 [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue"],
664 [AC_MSG_ERROR([libgssapi or libgssglue is not found, which is required by GSS.])])],)
666 AC_SUBST(GSSAPI_LIBS)
673 # LC_FUNC_HAVE_CAN_SLEEP_ARG
675 # 2.6.5 kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()
677 AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG],
678 [AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
679 LB_LINUX_TRY_COMPILE([
680 #include <linux/fs.h>
684 struct file_lock *file_lock;
685 flock_lock_file_wait(file, file_lock, cansleep);
687 AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1,
688 [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
698 # rhel4.2 kernel has f_op->flock field
700 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
701 [AC_MSG_CHECKING([if struct file_operations has flock field])
702 LB_LINUX_TRY_COMPILE([
703 #include <linux/fs.h>
705 struct file_operations ll_file_operations_flock;
706 ll_file_operations_flock.flock = NULL;
708 AC_DEFINE(HAVE_F_OP_FLOCK, 1,
709 [struct file_operations has flock field])
716 AC_DEFUN([LC_QUOTA_READ],
717 [AC_MSG_CHECKING([if kernel supports quota_read])
718 LB_LINUX_TRY_COMPILE([
719 #include <linux/fs.h>
721 struct super_operations sp;
722 void *i = (void *)sp.quota_read;
725 AC_DEFINE(KERNEL_SUPPORTS_QUOTA_READ, 1, [quota_read found])
732 # LC_COOKIE_FOLLOW_LINK
734 # kernel 2.6.13+ ->follow_link returns a cookie
737 AC_DEFUN([LC_COOKIE_FOLLOW_LINK],
738 [AC_MSG_CHECKING([if inode_operations->follow_link returns a cookie])
739 LB_LINUX_TRY_COMPILE([
740 #include <linux/fs.h>
741 #include <linux/namei.h>
743 struct dentry dentry;
746 dentry.d_inode->i_op->put_link(&dentry, &nd, NULL);
748 AC_DEFINE(HAVE_COOKIE_FOLLOW_LINK, 1, [inode_operations->follow_link returns a cookie])
758 # kernels prior than 2.6.0(?) have no RCU supported; in kernel 2.6.5(SUSE),
759 # call_rcu takes three parameters.
761 AC_DEFUN([LC_FUNC_RCU],
762 [AC_MSG_CHECKING([if kernel have RCU supported])
763 LB_LINUX_TRY_COMPILE([
764 #include <linux/rcupdate.h>
766 AC_DEFINE(HAVE_RCU, 1, [have RCU defined])
769 AC_MSG_CHECKING([if call_rcu takes three parameters])
770 LB_LINUX_TRY_COMPILE([
771 #include <linux/rcupdate.h>
774 call_rcu(&rh, (void (*)(struct rcu_head *))1, NULL);
776 AC_DEFINE(HAVE_CALL_RCU_PARAM, 1, [call_rcu takes three parameters])
787 AC_DEFUN([LC_PERCPU_COUNTER],
788 [AC_MSG_CHECKING([if have struct percpu_counter defined])
789 LB_LINUX_TRY_COMPILE([
790 #include <linux/percpu_counter.h>
792 AC_DEFINE(HAVE_PERCPU_COUNTER, 1, [percpu_counter found])
795 AC_MSG_CHECKING([if percpu_counter_inc takes the 2nd argument])
796 LB_LINUX_TRY_COMPILE([
797 #include <linux/percpu_counter.h>
799 struct percpu_counter c;
800 percpu_counter_init(&c, 0);
802 AC_DEFINE(HAVE_PERCPU_2ND_ARG, 1, [percpu_counter_init has two
813 AC_DEFUN([LC_TASK_CLENV_STORE],
815 AC_MSG_CHECKING([if we can store cl_env in task_struct])
816 if test x$have_task_clenv_store != xyes ; then
817 LC_TASK_CLENV_TUX_INFO
823 AC_DEFUN([LC_S_TIME_GRAN],
824 [AC_MSG_CHECKING([if super block has s_time_gran member])
825 LB_LINUX_TRY_COMPILE([
826 #include <linux/fs.h>
828 struct super_block sb;
830 return sb.s_time_gran;
833 AC_DEFINE(HAVE_S_TIME_GRAN, 1, [super block has s_time_gran member])
839 AC_DEFUN([LC_SB_TIME_GRAN],
840 [AC_MSG_CHECKING([if kernel has old get_sb_time_gran])
841 LB_LINUX_TRY_COMPILE([
842 #include <linux/fs.h>
844 return get_sb_time_gran(NULL);
847 AC_DEFINE(HAVE_SB_TIME_GRAN, 1, [kernel has old get_sb_time_gran])
855 # ~2.6.12 merge patch from oracle to convert tree_lock from spinlock to rwlock
856 AC_DEFUN([LC_RW_TREE_LOCK],
857 [AC_MSG_CHECKING([if kernel has tree_lock as rwlock])
858 tmp_flags="$EXTRA_KCFLAGS"
859 EXTRA_KCFLAGS="-Werror"
860 LB_LINUX_TRY_COMPILE([
861 #include <linux/fs.h>
863 struct address_space a;
865 write_lock(&a.tree_lock);
868 AC_DEFINE(HAVE_RW_TREE_LOCK, 1, [kernel has tree_lock as rw_lock])
872 EXTRA_KCFLAGS="$tmp_flags"
875 # LC_EXPORT_SYNCHRONIZE_RCU
876 # after 2.6.12 synchronize_rcu is preferred over synchronize_kernel
877 AC_DEFUN([LC_EXPORT_SYNCHRONIZE_RCU],
878 [LB_CHECK_SYMBOL_EXPORT([synchronize_rcu],
879 [kernel/rcupdate.c],[
880 AC_DEFINE(HAVE_SYNCHRONIZE_RCU, 1,
881 [in 2.6.12 synchronize_rcu preferred over synchronize_kernel])
889 # after 2.6.15 inode have i_mutex intead of i_sem
890 AC_DEFUN([LC_INODE_I_MUTEX],
891 [AC_MSG_CHECKING([if inode has i_mutex ])
892 LB_LINUX_TRY_COMPILE([
893 #include <linux/mutex.h>
894 #include <linux/fs.h>
899 mutex_unlock(&i.i_mutex);
902 AC_DEFINE(HAVE_INODE_I_MUTEX, 1,
903 [after 2.6.15 inode have i_mutex intead of i_sem])
911 # LC_SECURITY_PLUG # for SLES10 SP2
912 # check security plug in sles10 sp2 kernel
913 AC_DEFUN([LC_SECURITY_PLUG],
914 [AC_MSG_CHECKING([If kernel has security plug support])
915 LB_LINUX_TRY_COMPILE([
916 #include <linux/fs.h>
918 struct dentry *dentry;
919 struct vfsmount *mnt;
922 notify_change(dentry, mnt, iattr);
925 AC_DEFINE(HAVE_SECURITY_PLUG, 1,
926 [SLES10 SP2 use extra parameter in vfs])
934 # inode have i_private field since 2.6.17
935 AC_DEFUN([LC_INODE_IPRIVATE],
936 [AC_MSG_CHECKING([if inode has a i_private field])
937 LB_LINUX_TRY_COMPILE([
938 #include <linux/fs.h>
944 AC_DEFINE(HAVE_INODE_IPRIVATE, 1,
945 [struct inode has i_private field])
952 # after 2.6.17 dquote use mutex instead if semaphore
953 AC_DEFUN([LC_DQUOTOFF_MUTEX],
954 [AC_MSG_CHECKING([use dqonoff_mutex])
955 LB_LINUX_TRY_COMPILE([
956 #include <linux/mutex.h>
957 #include <linux/fs.h>
958 #include <linux/quota.h>
960 struct quota_info dq;
962 mutex_unlock(&dq.dqonoff_mutex);
965 AC_DEFINE(HAVE_DQUOTOFF_MUTEX, 1,
966 [after 2.6.17 dquote use mutex instead if semaphore])
975 # 2.6.18 don't export nr_pagecahe
976 AC_DEFUN([LC_NR_PAGECACHE],
977 [AC_MSG_CHECKING([kernel export nr_pagecache])
978 LB_LINUX_TRY_COMPILE([
979 #include <linux/pagemap.h>
981 return atomic_read(&nr_pagecache);
984 AC_DEFINE(HAVE_NR_PAGECACHE, 1,
985 [is kernel export nr_pagecache])
992 # LC_STATFS_DENTRY_PARAM
993 # starting from 2.6.18 linux kernel uses dentry instead of
994 # super_block for first vfs_statfs argument
996 AC_DEFUN([LC_STATFS_DENTRY_PARAM],
997 [AC_MSG_CHECKING([first vfs_statfs parameter is dentry])
998 LB_LINUX_TRY_COMPILE([
999 #include <linux/fs.h>
1001 int vfs_statfs(struct dentry *, struct kstatfs *);
1003 AC_DEFINE(HAVE_STATFS_DENTRY_PARAM, 1,
1004 [first parameter of vfs_statfs is dentry])
1005 AC_MSG_RESULT([yes])
1013 # starting from 2.6.18 kernel don't export do_kern_mount
1014 # and want to use vfs_kern_mount instead.
1016 AC_DEFUN([LC_VFS_KERN_MOUNT],
1017 [AC_MSG_CHECKING([vfs_kern_mount exist in kernel])
1018 LB_LINUX_TRY_COMPILE([
1019 #include <linux/mount.h>
1021 vfs_kern_mount(NULL, 0, NULL, NULL);
1023 AC_DEFINE(HAVE_VFS_KERN_MOUNT, 1,
1024 [vfs_kern_mount exist in kernel])
1025 AC_MSG_RESULT([yes])
1032 # LC_INVALIDATEPAGE_RETURN_INT
1033 # 2.6.17 changes return type for invalidatepage to 'void' from 'int'
1035 AC_DEFUN([LC_INVALIDATEPAGE_RETURN_INT],
1036 [AC_MSG_CHECKING([invalidatepage has return int])
1037 LB_LINUX_TRY_COMPILE([
1038 #include <linux/buffer_head.h>
1040 int rc = block_invalidatepage(NULL, 0);
1043 AC_DEFINE(HAVE_INVALIDATEPAGE_RETURN_INT, 1,
1044 [Define if return type of invalidatepage should be int])
1050 # LC_UMOUNTBEGIN_HAS_VFSMOUNT
1051 # after 2.6.18 umount_begin has different parameters
1052 AC_DEFUN([LC_UMOUNTBEGIN_HAS_VFSMOUNT],
1053 [AC_MSG_CHECKING([if umount_begin needs vfsmount parameter instead of super_block])
1054 tmp_flags="$EXTRA_KCFLAGS"
1055 EXTRA_KCFLAGS="-Werror"
1056 LB_LINUX_TRY_COMPILE([
1057 #include <linux/fs.h>
1060 static void cfg_umount_begin (struct vfsmount *v, int flags)
1065 static struct super_operations cfg_super_operations = {
1066 .umount_begin = cfg_umount_begin,
1069 cfg_super_operations.umount_begin(NULL,0);
1072 AC_DEFINE(HAVE_UMOUNTBEGIN_VFSMOUNT, 1,
1073 [Define umount_begin need second argument])
1077 EXTRA_KCFLAGS="$tmp_flags"
1081 # after 2.6.18 seq_file has lock intead of sem
1082 AC_DEFUN([LC_SEQ_LOCK],
1083 [AC_MSG_CHECKING([if struct seq_file has lock field])
1084 LB_LINUX_TRY_COMPILE([
1085 #include <linux/seq_file.h>
1087 struct seq_file seq;
1089 mutex_unlock(&seq.lock);
1092 AC_DEFINE(HAVE_SEQ_LOCK, 1,
1093 [after 2.6.18 seq_file has lock intead of sem])
1100 # LC_EXPORT_FILEMAP_FDATAWRITE_RANGE
1102 # No standard kernels export this
1104 AC_DEFUN([LC_EXPORT_FILEMAP_FDATAWRITE_RANGE],
1105 [LB_CHECK_SYMBOL_EXPORT([filemap_fdatawrite_range],
1107 AC_DEFINE(HAVE_FILEMAP_FDATAWRITE_RANGE, 1,
1108 [filemap_fdatawrite_range is exported by the kernel])
1114 # starting from 2.6.18 the file_operations .flush
1115 # method has a new "fl_owner_t id" parameter
1117 AC_DEFUN([LC_FLUSH_OWNER_ID],
1118 [AC_MSG_CHECKING([if file_operations .flush has an fl_owner_t id])
1119 LB_LINUX_TRY_COMPILE([
1120 #include <linux/fs.h>
1122 struct file_operations *fops = NULL;
1126 i = fops->flush(NULL, id);
1128 AC_DEFINE(HAVE_FLUSH_OWNER_ID, 1,
1129 [file_operations .flush method has an fl_owner_t id])
1130 AC_MSG_RESULT([yes])
1137 # LC_EXPORT_INVALIDATE_MAPPING_PAGES
1139 # SLES9, RHEL4, RHEL5, vanilla 2.6.24 export invalidate_mapping_pages() but
1140 # SLES10 2.6.16 does not, for some reason. For filter cache invalidation.
1142 AC_DEFUN([LC_EXPORT_INVALIDATE_MAPPING_PAGES],
1143 [LB_CHECK_SYMBOL_EXPORT([invalidate_mapping_pages], [mm/truncate.c], [
1144 AC_DEFINE(HAVE_INVALIDATE_MAPPING_PAGES, 1,
1145 [exported invalidate_mapping_pages])],
1146 [LB_CHECK_SYMBOL_EXPORT([invalidate_inode_pages], [mm/truncate.c], [
1147 AC_DEFINE(HAVE_INVALIDATE_INODE_PAGES, 1,
1148 [exported invalidate_inode_pages])], [
1149 AC_MSG_ERROR([no way to invalidate pages])
1155 # LC_EXT4_DISCARD_PREALLOCATIONS
1157 AC_DEFUN([LC_EXT4_DISCARD_PREALLOCATIONS],
1158 [AC_MSG_CHECKING([if ext4_discard_preallocatoins defined])
1159 tmp_flags="$EXTRA_KCFLAGS"
1160 EXTRA_KCFLAGS="-I$LINUX/fs"
1161 LB_LINUX_TRY_COMPILE([
1162 #include <ext4/ext4.h>
1165 ext4_discard_preallocations(&i);
1168 AC_DEFINE(LDISKFS_DISCARD_PREALLOCATIONS, 1,
1169 [ext4_discard_preacllocations defined])
1173 EXTRA_KCFLAGS="$tmp_flags"
1177 # LC_EXT_INSERT_EXTENT_WITH_5ARGS
1179 AC_DEFUN([LC_EXT_INSERT_EXTENT_WITH_5ARGS],
1180 [AC_MSG_CHECKING([ext4_ext_insert_extent needs 5 arguments])
1181 tmp_flags="$EXTRA_KCFLAGS"
1182 EXTRA_KCFLAGS="-I$LINUX/fs"
1183 LB_LINUX_TRY_COMPILE([
1184 #include <ext4/ext4_extents.h>
1186 ext4_ext_insert_extent(NULL, NULL, NULL, NULL, 0);
1188 AC_DEFINE([EXT_INSERT_EXTENT_WITH_5ARGS], 1,
1189 [ext4_ext_insert_exent needs 5 arguments])
1190 AC_MSG_RESULT([yes])
1194 EXTRA_KCFLAGS="$tmp_flags"
1197 #2.6.18 + RHEL5 (fc6)
1199 # RHEL5 in FS-cache patch rename PG_checked flag into PG_fs_misc
1200 AC_DEFUN([LC_PG_FS_MISC],
1201 [AC_MSG_CHECKING([kernel has PG_fs_misc])
1202 LB_LINUX_TRY_COMPILE([
1203 #include <linux/mm.h>
1204 #include <linux/page-flags.h>
1207 #error PG_fs_misc not defined in kernel
1211 AC_DEFINE(HAVE_PG_FS_MISC, 1,
1212 [is kernel have PG_fs_misc])
1218 # RHEL5 PageChecked and SetPageChecked defined
1219 AC_DEFUN([LC_PAGE_CHECKED],
1220 [AC_MSG_CHECKING([kernel has PageChecked and SetPageChecked])
1221 LB_LINUX_TRY_COMPILE([
1222 #include <linux/autoconf.h>
1223 #ifdef HAVE_LINUX_MMTYPES_H
1224 #include <linux/mm_types.h>
1226 #include <linux/page-flags.h>
1230 /* before 2.6.26 this define*/
1232 /* 2.6.26 use function instead of define for it */
1238 AC_DEFINE(HAVE_PAGE_CHECKED, 1,
1239 [does kernel have PageChecked and SetPageChecked])
1248 # If we have fiemap.h
1249 # after 2.6.27 use fiemap.h in include/linux
1251 AC_DEFUN([LC_LINUX_FIEMAP_H],
1252 [LB_CHECK_FILE([$LINUX/include/linux/fiemap.h],[
1253 AC_MSG_CHECKING([if fiemap.h can be compiled])
1254 LB_LINUX_TRY_COMPILE([
1255 #include <linux/types.h>
1256 #include <linux/fiemap.h>
1258 AC_MSG_RESULT([yes])
1259 AC_DEFINE(HAVE_LINUX_FIEMAP_H, 1, [Kernel has fiemap.h])
1269 # 2.6.19 API changes
1270 # inode don't have i_blksize field
1271 AC_DEFUN([LC_INODE_BLKSIZE],
1272 [AC_MSG_CHECKING([inode has i_blksize field])
1273 LB_LINUX_TRY_COMPILE([
1274 #include <linux/fs.h>
1280 AC_DEFINE(HAVE_INODE_BLKSIZE, 1,
1281 [struct inode has i_blksize field])
1287 # LC_VFS_READDIR_U64_INO
1288 # 2.6.19 use u64 for inode number instead of inode_t
1289 AC_DEFUN([LC_VFS_READDIR_U64_INO],
1290 [AC_MSG_CHECKING([check vfs_readdir need 64bit inode number])
1291 tmp_flags="$EXTRA_KCFLAGS"
1292 EXTRA_KCFLAGS="-Werror"
1293 LB_LINUX_TRY_COMPILE([
1294 #include <linux/fs.h>
1295 int fillonedir(void * __buf, const char * name, int namlen, loff_t offset,
1296 u64 ino, unsigned int d_type)
1303 filter = fillonedir;
1307 AC_DEFINE(HAVE_VFS_READDIR_U64_INO, 1,
1308 [if vfs_readdir need 64bit inode number])
1312 EXTRA_KCFLAGS="$tmp_flags"
1316 # 2.6.19 replaced writev with aio_write
1317 AC_DEFUN([LC_FILE_WRITEV],
1318 [AC_MSG_CHECKING([writev in fops])
1319 LB_LINUX_TRY_COMPILE([
1320 #include <linux/fs.h>
1322 struct file_operations *fops = NULL;
1323 fops->writev = NULL;
1326 AC_DEFINE(HAVE_FILE_WRITEV, 1,
1334 # 2.6.19 replaced readv with aio_read
1335 AC_DEFUN([LC_FILE_READV],
1336 [AC_MSG_CHECKING([readv in fops])
1337 LB_LINUX_TRY_COMPILE([
1338 #include <linux/fs.h>
1340 struct file_operations *fops = NULL;
1344 AC_DEFINE(HAVE_FILE_READV, 1,
1353 # LC_CANCEL_DIRTY_PAGE
1354 # 2.6.20 introduced cancel_dirty_page instead of clear_page_dirty.
1355 AC_DEFUN([LC_CANCEL_DIRTY_PAGE],
1356 [AC_MSG_CHECKING([kernel has cancel_dirty_page])
1357 # the implementation of cancel_dirty_page in OFED 1.4.1's SLES10 SP2
1358 # backport is broken, so ignore it
1359 if test -f $OFED_BACKPORT_PATH/linux/mm.h &&
1360 test "$(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
1363 LB_LINUX_TRY_COMPILE([
1364 #include <linux/mm.h>
1365 #include <linux/page-flags.h>
1367 cancel_dirty_page(NULL, 0);
1370 AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
1371 [kernel has cancel_dirty_page instead of clear_page_dirty])
1378 # raid5-zerocopy patch
1383 # In order to support raid5 zerocopy patch, we have to patch the kernel to make
1384 # it support constant page, which means the page won't be modified during the
1387 AC_DEFUN([LC_PAGE_CONSTANT],
1388 [AC_MSG_CHECKING([if kernel have PageConstant defined])
1389 LB_LINUX_TRY_COMPILE([
1390 #include <linux/mm.h>
1391 #include <linux/page-flags.h>
1394 #error "Have no raid5 zcopy patch"
1398 AC_DEFINE(HAVE_PAGE_CONSTANT, 1, [kernel have PageConstant supported])
1406 # 2.6.22 lost second parameter for invalidate_bdev
1407 AC_DEFUN([LC_INVALIDATE_BDEV_2ARG],
1408 [AC_MSG_CHECKING([if invalidate_bdev has second argument])
1409 LB_LINUX_TRY_COMPILE([
1410 #include <linux/buffer_head.h>
1412 invalidate_bdev(NULL,0);
1414 AC_MSG_RESULT([yes])
1415 AC_DEFINE(HAVE_INVALIDATE_BDEV_2ARG, 1,
1416 [invalidate_bdev has second argument])
1423 # check for crypto API
1425 AC_DEFUN([LC_ASYNC_BLOCK_CIPHER],
1426 [AC_MSG_CHECKING([if kernel has block cipher support])
1427 LB_LINUX_TRY_COMPILE([
1428 #include <linux/err.h>
1429 #include <linux/crypto.h>
1431 struct crypto_blkcipher *tfm;
1432 tfm = crypto_alloc_blkcipher("aes", 0, 0 );
1434 AC_MSG_RESULT([yes])
1435 AC_DEFINE(HAVE_ASYNC_BLOCK_CIPHER, 1, [kernel has block cipher support])
1442 # check for struct hash_desc
1444 AC_DEFUN([LC_STRUCT_HASH_DESC],
1445 [AC_MSG_CHECKING([if kernel has struct hash_desc])
1446 LB_LINUX_TRY_COMPILE([
1447 #include <linux/err.h>
1448 #include <linux/crypto.h>
1450 struct hash_desc foo;
1452 AC_MSG_RESULT([yes])
1453 AC_DEFINE(HAVE_STRUCT_HASH_DESC, 1, [kernel has struct hash_desc])
1460 # check for struct blkcipher_desc
1462 AC_DEFUN([LC_STRUCT_BLKCIPHER_DESC],
1463 [AC_MSG_CHECKING([if kernel has struct blkcipher_desc])
1464 LB_LINUX_TRY_COMPILE([
1465 #include <linux/err.h>
1466 #include <linux/crypto.h>
1468 struct blkcipher_desc foo;
1470 AC_MSG_RESULT([yes])
1471 AC_DEFINE(HAVE_STRUCT_BLKCIPHER_DESC, 1, [kernel has struct blkcipher_desc])
1478 # 2.6.19 check for FS_RENAME_DOES_D_MOVE flag
1480 AC_DEFUN([LC_FS_RENAME_DOES_D_MOVE],
1481 [AC_MSG_CHECKING([if kernel has FS_RENAME_DOES_D_MOVE flag])
1482 LB_LINUX_TRY_COMPILE([
1483 #include <linux/fs.h>
1485 int v = FS_RENAME_DOES_D_MOVE;
1487 AC_MSG_RESULT([yes])
1488 AC_DEFINE(HAVE_FS_RENAME_DOES_D_MOVE, 1, [kernel has FS_RENAME_DOES_D_MOVE flag])
1496 # 2.6.23 have return type 'void' for unregister_blkdev
1497 AC_DEFUN([LC_UNREGISTER_BLKDEV_RETURN_INT],
1498 [AC_MSG_CHECKING([if unregister_blkdev return int])
1499 LB_LINUX_TRY_COMPILE([
1500 #include <linux/fs.h>
1502 int i = unregister_blkdev(0,NULL);
1504 AC_MSG_RESULT([yes])
1505 AC_DEFINE(HAVE_UNREGISTER_BLKDEV_RETURN_INT, 1,
1506 [unregister_blkdev return int])
1512 # 2.6.23 change .sendfile to .splice_read
1513 AC_DEFUN([LC_KERNEL_SPLICE_READ],
1514 [AC_MSG_CHECKING([if kernel has .splice_read])
1515 LB_LINUX_TRY_COMPILE([
1516 #include <linux/fs.h>
1518 struct file_operations file;
1520 file.splice_read = NULL;
1522 AC_MSG_RESULT([yes])
1523 AC_DEFINE(HAVE_KERNEL_SPLICE_READ, 1,
1524 [kernel has .slice_read])
1530 # 2.6.23 change .sendfile to .splice_read
1531 # RHEL4 (-92 kernel) have both sendfile and .splice_read API
1532 AC_DEFUN([LC_KERNEL_SENDFILE],
1533 [AC_MSG_CHECKING([if kernel has .sendfile])
1534 LB_LINUX_TRY_COMPILE([
1535 #include <linux/fs.h>
1537 struct file_operations file;
1539 file.sendfile = NULL;
1541 AC_MSG_RESULT([yes])
1542 AC_DEFINE(HAVE_KERNEL_SENDFILE, 1,
1543 [kernel has .sendfile])
1549 # 2.6.23 extract nfs export related data into exportfs.h
1550 AC_DEFUN([LC_HAVE_EXPORTFS_H],
1551 [LB_CHECK_FILE([$LINUX/include/linux/exportfs.h], [
1552 AC_DEFINE(HAVE_LINUX_EXPORTFS_H, 1,
1553 [kernel has include/exportfs.h])
1559 # 2.6.23 has new page fault handling API
1560 AC_DEFUN([LC_VM_OP_FAULT],
1561 [AC_MSG_CHECKING([kernel has .fault in vm_operation_struct])
1562 LB_LINUX_TRY_COMPILE([
1563 #include <linux/mm.h>
1565 struct vm_operations_struct op;
1569 AC_MSG_RESULT([yes])
1570 AC_DEFINE(HAVE_VM_OP_FAULT, 1,
1571 [kernel has .fault in vm_operation_struct])
1577 # 2.6.23 has new shrinker API
1578 AC_DEFUN([LC_REGISTER_SHRINKER],
1579 [LB_CHECK_SYMBOL_EXPORT([register_shrinker],
1581 AC_DEFINE(HAVE_REGISTER_SHRINKER, 1,
1582 [kernel exports register_shrinker])
1583 # 2.6.32 added another argument to struct shrinker->shrink
1584 AC_MSG_CHECKING([if passing shrinker as first argument])
1585 tmp_flags="$EXTRA_KCFLAGS"
1586 EXTRA_KCFLAGS="-Werror"
1587 LB_LINUX_TRY_COMPILE([
1588 #include <linux/mm.h>
1589 int test_shrink(struct shrinker *, int, gfp_t);
1591 struct shrinker *shr = NULL;
1592 shr->shrink = test_shrink;
1594 AC_MSG_RESULT([yes])
1595 AC_DEFINE(SHRINKER_FIRST_ARG, [struct shrinker *shrinker,],
1596 [kernel is passing shrinker as first argument])
1598 AC_DEFINE(SHRINKER_FIRST_ARG, ,
1599 [kernel is not passing shrinker as first argument])
1601 EXTRA_KCFLAGS="$tmp_flags"
1603 AC_DEFINE(SHRINKER_FIRST_ARG, ,
1604 [kernel does not exports register_shrinker,
1605 so SHRINKER_FIRST_ARG is empty])
1609 # 2.6.23 add code to wait other users to complete before removing procfs entry
1610 AC_DEFUN([LC_PROCFS_USERS],
1611 [AC_MSG_CHECKING([if kernel has pde_users member in procfs entry struct])
1612 LB_LINUX_TRY_COMPILE([
1613 #include <linux/proc_fs.h>
1615 struct proc_dir_entry pde;
1619 AC_MSG_RESULT([yes])
1620 AC_DEFINE(HAVE_PROCFS_USERS, 1,
1621 [kernel has pde_users member in procfs entry struct])
1627 # 2.6.23 exports exportfs_decode_fh
1628 AC_DEFUN([LC_EXPORTFS_DECODE_FH],
1629 [LB_CHECK_SYMBOL_EXPORT([exportfs_decode_fh],
1630 [fs/exportfs/expfs.c],[
1631 AC_DEFINE(HAVE_EXPORTFS_DECODE_FH, 1,
1632 [exportfs_decode_fh has been export])
1639 # 2.6.24 need linux/mm_types.h included
1640 AC_DEFUN([LC_HAVE_MMTYPES_H],
1641 [LB_CHECK_FILE([$LINUX/include/linux/mm_types.h], [
1642 AC_DEFINE(HAVE_LINUX_MMTYPES_H, 1,
1643 [kernel has include/mm_types.h])
1649 # 2.6.24 has bio_endio with 2 args
1650 AC_DEFUN([LC_BIO_ENDIO_2ARG],
1651 [AC_MSG_CHECKING([if kernel has bio_endio with 2 args])
1652 LB_LINUX_TRY_COMPILE([
1653 #include <linux/bio.h>
1657 AC_MSG_RESULT([yes])
1658 AC_DEFINE(HAVE_BIO_ENDIO_2ARG, 1,
1659 [kernel has bio_endio with 2 args])
1665 # 2.6.24 has new members in exports struct.
1666 AC_DEFUN([LC_FH_TO_DENTRY],
1667 [AC_MSG_CHECKING([if kernel has .fh_to_dentry member in export_operations struct])
1668 LB_LINUX_TRY_COMPILE([
1669 #ifdef HAVE_LINUX_EXPORTFS_H
1670 #include <linux/exportfs.h>
1672 #include <linux/fs.h>
1675 struct export_operations exp;
1677 exp.fh_to_dentry = NULL;
1679 AC_MSG_RESULT([yes])
1680 AC_DEFINE(HAVE_FH_TO_DENTRY, 1,
1681 [kernel has .fh_to_dentry member in export_operations struct])
1687 # 2.6.24 removes long aged procfs entry -> deleted member
1688 AC_DEFUN([LC_PROCFS_DELETED],
1689 [AC_MSG_CHECKING([if kernel has deleted member in procfs entry struct])
1690 LB_LINUX_TRY_COMPILE([
1691 #include <linux/proc_fs.h>
1693 struct proc_dir_entry pde;
1697 AC_MSG_RESULT([yes])
1698 AC_DEFINE(HAVE_PROCFS_DELETED, 1,
1699 [kernel has deleted member in procfs entry struct])
1705 # 2.6.24 has bdi_init()/bdi_destroy() functions.
1706 AC_DEFUN([LC_EXPORT_BDI_INIT],
1707 [LB_CHECK_SYMBOL_EXPORT([bdi_init],
1708 [mm/backing-dev.c],[
1709 AC_DEFINE(HAVE_BDI_INIT, 1,
1710 [bdi_init/bdi_destroy functions are present])
1717 # 2.6.25 change define to inline
1718 AC_DEFUN([LC_MAPPING_CAP_WRITEBACK_DIRTY],
1719 [AC_MSG_CHECKING([if kernel have mapping_cap_writeback_dirty])
1720 LB_LINUX_TRY_COMPILE([
1721 #include <linux/backing-dev.h>
1723 #ifndef mapping_cap_writeback_dirty
1724 mapping_cap_writeback_dirty(NULL);
1727 AC_MSG_RESULT([yes])
1728 AC_DEFINE(HAVE_MAPPING_CAP_WRITEBACK_DIRTY, 1,
1729 [kernel have mapping_cap_writeback_dirty])
1737 # 2.6.26 isn't export set_fs_pwd and change paramter in fs struct
1738 AC_DEFUN([LC_FS_STRUCT_USE_PATH],
1739 [AC_MSG_CHECKING([fs_struct use path structure])
1740 LB_LINUX_TRY_COMPILE([
1741 #include <asm/atomic.h>
1742 #include <linux/spinlock.h>
1743 #include <linux/fs_struct.h>
1746 struct fs_struct fs;
1750 AC_MSG_RESULT([yes])
1751 AC_DEFINE(HAVE_FS_STRUCT_USE_PATH, 1,
1752 [fs_struct use path structure])
1760 AC_DEFUN([LC_INODE_PERMISION_2ARGS],
1761 [AC_MSG_CHECKING([inode_operations->permission has two args])
1762 LB_LINUX_TRY_COMPILE([
1763 #include <linux/fs.h>
1765 struct inode *inode;
1767 inode->i_op->permission(NULL,0);
1769 AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
1770 [inode_operations->permission has two args])
1771 AC_MSG_RESULT([yes])
1777 # 2.6.27 has file_remove_suid instead of remove_suid
1778 AC_DEFUN([LC_FILE_REMOVE_SUID],
1779 [AC_MSG_CHECKING([kernel has file_remove_suid])
1780 LB_LINUX_TRY_COMPILE([
1781 #include <linux/fs.h>
1783 file_remove_suid(NULL);
1785 AC_DEFINE(HAVE_FILE_REMOVE_SUID, 1,
1786 [kernel have file_remove_suid])
1787 AC_MSG_RESULT([yes])
1793 # 2.6.27 have new page locking API
1794 AC_DEFUN([LC_TRYLOCKPAGE],
1795 [AC_MSG_CHECKING([kernel uses trylock_page for page lock])
1796 LB_LINUX_TRY_COMPILE([
1797 #include <linux/pagemap.h>
1801 AC_DEFINE(HAVE_TRYLOCK_PAGE, 1,
1802 [kernel uses trylock_page for page lock])
1803 AC_MSG_RESULT([yes])
1809 # 2.6.27 removed the read_inode from super_operations.
1810 AC_DEFUN([LC_READ_INODE_IN_SBOPS],
1811 [AC_MSG_CHECKING([super_operations has a read_inode field])
1812 LB_LINUX_TRY_COMPILE([
1813 #include <linux/fs.h>
1815 struct super_operations *sop;
1816 sop->read_inode(NULL);
1818 AC_DEFINE(HAVE_READ_INODE_IN_SBOPS, 1,
1819 [super_operations has a read_inode])
1820 AC_MSG_RESULT([yes])
1826 # 2.6.27 has inode_permission instead of permisson
1827 AC_DEFUN([LC_EXPORT_INODE_PERMISSION],
1828 [LB_CHECK_SYMBOL_EXPORT([inode_permission],
1830 AC_DEFINE(HAVE_EXPORT_INODE_PERMISSION, 1,
1831 [inode_permission is exported by the kernel])
1836 # 2.6.27 use 5th parameter in quota_on for remount.
1837 AC_DEFUN([LC_QUOTA_ON_5ARGS],
1838 [AC_MSG_CHECKING([quota_on needs 5 parameters])
1839 LB_LINUX_TRY_COMPILE([
1840 #include <linux/quota.h>
1842 struct quotactl_ops *qop;
1843 qop->quota_on(NULL, 0, 0, NULL, 0);
1845 AC_DEFINE(HAVE_QUOTA_ON_5ARGS, 1,
1846 [quota_on needs 5 paramters])
1847 AC_MSG_RESULT([yes])
1853 # 2.6.27 use 3th parameter in quota_off for remount.
1854 AC_DEFUN([LC_QUOTA_OFF_3ARGS],
1855 [AC_MSG_CHECKING([quota_off needs 3 parameters])
1856 LB_LINUX_TRY_COMPILE([
1857 #include <linux/quota.h>
1859 struct quotactl_ops *qop;
1860 qop->quota_off(NULL, 0, 0);
1862 AC_DEFINE(HAVE_QUOTA_OFF_3ARGS, 1,
1863 [quota_off needs 3 paramters])
1864 AC_MSG_RESULT([yes])
1870 # 2.6.27 has vfs_dq_off inline function.
1871 AC_DEFUN([LC_VFS_DQ_OFF],
1872 [AC_MSG_CHECKING([vfs_dq_off is defined])
1873 LB_LINUX_TRY_COMPILE([
1874 #include <linux/quotaops.h>
1876 vfs_dq_off(NULL, 0);
1878 AC_DEFINE(HAVE_VFS_DQ_OFF, 1, [vfs_dq_off is defined])
1879 AC_MSG_RESULT([yes])
1885 # LC_LOCK_MAP_ACQUIRE
1886 # after 2.6.27 lock_map_acquire replaces lock_acquire
1887 AC_DEFUN([LC_LOCK_MAP_ACQUIRE],
1888 [AC_MSG_CHECKING([if lock_map_acquire is defined])
1889 LB_LINUX_TRY_COMPILE([
1890 #include <linux/lockdep.h>
1892 lock_map_acquire(NULL);
1895 AC_DEFINE(HAVE_LOCK_MAP_ACQUIRE, 1,
1896 [lock_map_acquire is defined])
1902 # 2.6.27.15-2 sles11
1904 # 2.6.27 sles11 remove the bi_hw_segments
1905 AC_DEFUN([LC_BI_HW_SEGMENTS],
1906 [AC_MSG_CHECKING([struct bio has a bi_hw_segments field])
1907 LB_LINUX_TRY_COMPILE([
1908 #include <linux/bio.h>
1911 io.bi_hw_segments = 0;
1913 AC_DEFINE(HAVE_BI_HW_SEGMENTS, 1,
1914 [struct bio has a bi_hw_segments field])
1915 AC_MSG_RESULT([yes])
1922 # 2.6.27 sles11 move the quotaio_v1{2}.h from include/linux to fs
1923 # 2.6.32 move the quotaio_v1{2}.h from fs to fs/quota
1924 AC_DEFUN([LC_HAVE_QUOTAIO_V1_H],
1925 [LB_CHECK_FILE([$LINUX/include/linux/quotaio_v1.h],[
1926 AC_DEFINE(HAVE_QUOTAIO_V1_H, 1,
1927 [kernel has include/linux/quotaio_v1.h])
1928 ],[LB_CHECK_FILE([$LINUX/fs/quotaio_v1.h],[
1929 AC_DEFINE(HAVE_FS_QUOTAIO_V1_H, 1,
1930 [kernel has fs/quotaio_v1.h])
1931 ],[LB_CHECK_FILE([$LINUX/fs/quota/quotaio_v1.h],[
1932 AC_DEFINE(HAVE_FS_QUOTA_QUOTAIO_V1_H, 1,
1933 [kernel has fs/quota/quotaio_v1.h])
1941 # sles10 sp2 need 5 parameter for vfs_symlink
1942 AC_DEFUN([LC_VFS_SYMLINK_5ARGS],
1943 [AC_MSG_CHECKING([vfs_symlink need 5 parameter])
1944 LB_LINUX_TRY_COMPILE([
1945 #include <linux/fs.h>
1947 struct inode *dir = NULL;
1948 struct dentry *dentry = NULL;
1949 struct vfsmount *mnt = NULL;
1950 const char * path = NULL;
1951 vfs_symlink(dir, dentry, mnt, path, 0);
1953 AC_DEFINE(HAVE_VFS_SYMLINK_5ARGS, 1,
1954 [vfs_symlink need 5 parameteres])
1955 AC_MSG_RESULT([yes])
1961 # 2.6.27 sles11 has sb_any_quota_active
1962 AC_DEFUN([LC_SB_ANY_QUOTA_ACTIVE],
1963 [AC_MSG_CHECKING([Kernel has sb_any_quota_active])
1964 LB_LINUX_TRY_COMPILE([
1965 #include <linux/quotaops.h>
1967 sb_any_quota_active(NULL);
1969 AC_DEFINE(HAVE_SB_ANY_QUOTA_ACTIVE, 1,
1970 [Kernel has a sb_any_quota_active])
1971 AC_MSG_RESULT([yes])
1977 # 2.6.27 sles11 has sb_has_quota_active
1978 AC_DEFUN([LC_SB_HAS_QUOTA_ACTIVE],
1979 [AC_MSG_CHECKING([Kernel has sb_has_quota_active])
1980 LB_LINUX_TRY_COMPILE([
1981 #include <linux/quotaops.h>
1983 sb_has_quota_active(NULL, 0);
1985 AC_DEFINE(HAVE_SB_HAS_QUOTA_ACTIVE, 1,
1986 [Kernel has a sb_has_quota_active])
1987 AC_MSG_RESULT([yes])
1995 # 2.6.31 replaces blk_queue_hardsect_size by blk_queue_logical_block_size function
1996 AC_DEFUN([LC_BLK_QUEUE_LOG_BLK_SIZE],
1997 [AC_MSG_CHECKING([if blk_queue_logical_block_size is defined])
1998 LB_LINUX_TRY_COMPILE([
1999 #include <linux/blkdev.h>
2001 blk_queue_logical_block_size(NULL, 0);
2004 AC_DEFINE(HAVE_BLK_QUEUE_LOG_BLK_SIZE, 1,
2005 [blk_queue_logical_block_size is defined])
2013 # 2.6.32 add a limits member in struct request_queue.
2014 AC_DEFUN([LC_REQUEST_QUEUE_LIMITS],
2015 [AC_MSG_CHECKING([if request_queue has a limits field])
2016 LB_LINUX_TRY_COMPILE([
2017 #include <linux/blkdev.h>
2019 struct request_queue rq;
2020 rq.limits.io_min = 0;
2023 AC_DEFINE(HAVE_REQUEST_QUEUE_LIMITS, 1,
2024 [request_queue has a limits field])
2030 # 2.6.32 has bdi_register() functions.
2031 AC_DEFUN([LC_EXPORT_BDI_REGISTER],
2032 [LB_CHECK_SYMBOL_EXPORT([bdi_register],
2033 [mm/backing-dev.c],[
2034 AC_DEFINE(HAVE_BDI_REGISTER, 1,
2035 [bdi_register function is present])
2040 # 2.6.32 add s_bdi for super block
2041 AC_DEFUN([LC_SB_BDI],
2042 [AC_MSG_CHECKING([if super_block has s_bdi field])
2043 LB_LINUX_TRY_COMPILE([
2044 #include <linux/fs.h>
2046 struct super_block sb;
2050 AC_DEFINE(HAVE_SB_BDI, 1,
2051 [super_block has s_bdi field])
2057 # 2.6.32 removes blk_queue_max_sectors and add blk_queue_max_hw_sectors
2058 # check blk_queue_max_sectors and use it until disappear.
2059 AC_DEFUN([LC_BLK_QUEUE_MAX_SECTORS],
2060 [AC_MSG_CHECKING([if blk_queue_max_sectors is defined])
2061 LB_LINUX_TRY_COMPILE([
2062 #include <linux/blkdev.h>
2064 blk_queue_max_sectors(NULL, 0);
2067 AC_DEFINE(HAVE_BLK_QUEUE_MAX_SECTORS, 1,
2068 [blk_queue_max_sectors is defined])
2074 # 2.6.32 replaces 2 functions blk_queue_max_phys_segments and blk_queue_max_hw_segments by blk_queue_max_segments
2075 AC_DEFUN([LC_BLK_QUEUE_MAX_SEGMENTS],
2076 [AC_MSG_CHECKING([if blk_queue_max_segments is defined])
2077 LB_LINUX_TRY_COMPILE([
2078 #include <linux/blkdev.h>
2080 blk_queue_max_segments(NULL, 0);
2083 AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
2084 [blk_queue_max_segments is defined])
2091 # LC_EXT4_SINGLEDATA_TRANS_BLOCKS_SB
2093 AC_DEFUN([LC_EXT4_SINGLEDATA_TRANS_BLOCKS_SB],
2094 [AC_MSG_CHECKING([if EXT4_SINGLEDATA_TRANS_BLOCKS takes the sb as argument])
2095 tmp_flags="$EXTRA_KCFLAGS"
2096 EXTRA_KCFLAGS="-I$LINUX/fs"
2097 LB_LINUX_TRY_COMPILE([
2098 #include <ext4/ext4.h>
2099 #include <ext4/ext4_jbd2.h>
2101 struct super_block sb;
2102 EXT4_SINGLEDATA_TRANS_BLOCKS(&sb);
2105 AC_DEFINE(LDISKFS_SINGLEDATA_TRANS_BLOCKS_HAS_SB, 1,
2106 [EXT4_SINGLEDATA_TRANS_BLOCKS takes sb as argument])
2110 EXTRA_KCFLAGS="$tmp_flags"
2114 # LC_WALK_SPACE_HAS_DATA_SEM
2116 # 2.6.32 ext4_ext_walk_space() takes i_data_sem internally.
2118 AC_DEFUN([LC_WALK_SPACE_HAS_DATA_SEM],
2119 [AC_MSG_CHECKING([if ext4_ext_walk_space() takes i_data_sem])
2120 WALK_SPACE_DATA_SEM="$(awk 'BEGIN { in_walk_space = 0 } \
2121 /^int ext4_ext_walk_space\(/ { in_walk_space = 1 } \
2122 /^}/ { if (in_walk_space) in_walk_space = 0 } \
2123 /i_data_sem/ { if (in_walk_space) { print("yes"); exit } }' \
2124 $LINUX/fs/ext4/extents.c)"
2125 if test x"$WALK_SPACE_DATA_SEM" == xyes ; then
2126 AC_DEFINE(WALK_SPACE_HAS_DATA_SEM, 1,
2127 [ext4_ext_walk_space takes i_data_sem])
2128 AC_MSG_RESULT([yes])
2137 # Check if kernel has been patched for 64-bit quota limits support.
2138 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
2139 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
2140 # that in the absence of quotaio_v1.h in the kernel headers.
2142 AC_DEFUN([LC_QUOTA64],[
2143 AC_MSG_CHECKING([if kernel has 64-bit quota limits support])
2144 tmp_flags="$EXTRA_KCFLAGS"
2145 EXTRA_KCFLAGS="-I$LINUX/fs"
2146 LB_LINUX_TRY_COMPILE([
2147 #include <linux/kernel.h>
2148 #include <linux/fs.h>
2149 #ifdef HAVE_QUOTAIO_V1_H
2150 # include <linux/quotaio_v2.h>
2151 int versions[] = V2_INITQVERSIONS_R1;
2152 struct v2_disk_dqblk_r1 dqblk_r1;
2153 #elif defined(HAVE_FS_QUOTA_QUOTAIO_V1_H)
2154 # include <quota/quotaio_v2.h>
2155 struct v2r1_disk_dqblk dqblk_r1;
2156 #elif defined(HAVE_FS_QUOTAIO_V1_H)
2157 # include <quotaio_v2.h>
2158 struct v2r1_disk_dqblk dqblk_r1;
2160 #include <linux/quota.h>
2161 int ver = QFMT_VFS_V1;
2164 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
2165 AC_MSG_RESULT([yes])
2167 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
2168 AC_MSG_ERROR([You have got no 64-bit kernel quota support.])
2172 EXTRA_KCFLAGS=$tmp_flags
2177 # starting from 2.6.28 kernel replaces d_alloc_anon() with
2178 # d_obtain_alias() for getting anonymous dentries
2180 AC_DEFUN([LC_D_OBTAIN_ALIAS],
2181 [AC_MSG_CHECKING([d_obtain_alias exist in kernel])
2182 LB_LINUX_TRY_COMPILE([
2183 #include <linux/dcache.h>
2185 d_obtain_alias(NULL);
2187 AC_DEFINE(HAVE_D_OBTAIN_ALIAS, 1,
2188 [d_obtain_alias exist in kernel])
2189 AC_MSG_RESULT([yes])
2199 # Lustre linux kernel checks
2201 AC_DEFUN([LC_PROG_LINUX],
2202 [LC_LUSTRE_VERSION_H
2203 if test x$enable_server = xyes ; then
2204 AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
2205 LC_FUNC_DEV_SET_RDONLY
2211 LC_CONFIG_LIBLUSTRE_RECOVERY
2212 LC_CONFIG_HEALTH_CHECK_WRITE
2213 LC_CONFIG_LRU_RESIZE
2215 LC_LLITE_LLOOP_MODULE
2218 LC_EXPORT_TRUNCATE_COMPLETE
2219 LC_EXPORT_TRUNCATE_RANGE
2220 LC_EXPORT_D_REHASH_COND
2221 LC_EXPORT___D_REHASH
2222 LC_EXPORT_NODE_TO_CPUMASK
2224 LC_HEADER_LDISKFS_XATTR
2225 LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
2232 LC_POSIX_ACL_XATTR_H
2235 LC_STRUCT_INTENT_FILE
2240 LC_FUNC_HAVE_CAN_SLEEP_ARG
2243 LC_COOKIE_FOLLOW_LINK
2254 LC_EXPORT_SYNCHRONIZE_RCU
2260 LC_SECURITY_PLUG # for SLES10 SP2
2268 LC_STATFS_DENTRY_PARAM
2270 LC_INVALIDATEPAGE_RETURN_INT
2271 LC_UMOUNTBEGIN_HAS_VFSMOUNT
2273 LC_EXPORT_FILEMAP_FDATAWRITE_RANGE
2275 if test x$enable_server = xyes ; then
2276 LC_EXPORT_INVALIDATE_MAPPING_PAGES
2278 LC_EXT4_DISCARD_PREALLOCATIONS
2279 LC_EXT_INSERT_EXTENT_WITH_5ARGS
2281 #2.6.18 + RHEL5 (fc6)
2288 LC_VFS_READDIR_U64_INO
2293 LC_CANCEL_DIRTY_PAGE
2295 # raid5-zerocopy patch
2299 LC_INVALIDATE_BDEV_2ARG
2300 LC_ASYNC_BLOCK_CIPHER
2302 LC_STRUCT_BLKCIPHER_DESC
2303 LC_FS_RENAME_DOES_D_MOVE
2306 LC_UNREGISTER_BLKDEV_RETURN_INT
2307 LC_KERNEL_SPLICE_READ
2311 LC_REGISTER_SHRINKER
2313 LC_EXPORTFS_DECODE_FH
2323 LC_MAPPING_CAP_WRITEBACK_DIRTY
2326 LC_FS_STRUCT_USE_PATH
2329 LC_INODE_PERMISION_2ARGS
2332 LC_READ_INODE_IN_SBOPS
2333 LC_EXPORT_INODE_PERMISSION
2339 # 2.6.27.15-2 sles11
2341 LC_HAVE_QUOTAIO_V1_H
2342 LC_VFS_SYMLINK_5ARGS
2343 LC_SB_ANY_QUOTA_ACTIVE
2344 LC_SB_HAS_QUOTA_ACTIVE
2347 LC_BLK_QUEUE_LOG_BLK_SIZE
2350 LC_REQUEST_QUEUE_LIMITS
2351 LC_EXPORT_BDI_REGISTER
2353 LC_BLK_QUEUE_MAX_SECTORS
2354 LC_BLK_QUEUE_MAX_SEGMENTS
2355 LC_EXT4_SINGLEDATA_TRANS_BLOCKS_SB
2356 LC_WALK_SPACE_HAS_DATA_SEM
2359 if test x$enable_server = xyes ; then
2360 if test x$enable_quota_module = xyes ; then
2361 LC_QUOTA64 # must after LC_HAVE_QUOTAIO_V1_H
2367 # LC_CONFIG_CLIENT_SERVER
2369 # Build client/server sides of Lustre
2371 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
2372 [AC_MSG_CHECKING([whether to build Lustre server support])
2373 AC_ARG_ENABLE([server],
2374 AC_HELP_STRING([--disable-server],
2375 [disable Lustre server support]),
2376 [],[enable_server='yes'])
2377 AC_MSG_RESULT([$enable_server])
2379 AC_MSG_CHECKING([whether to build Lustre client support])
2380 AC_ARG_ENABLE([client],
2381 AC_HELP_STRING([--disable-client],
2382 [disable Lustre client support]),
2383 [],[enable_client='yes'])
2384 AC_MSG_RESULT([$enable_client])])
2387 # LC_CONFIG_LIBLUSTRE
2389 # whether to build liblustre
2391 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
2392 [AC_MSG_CHECKING([whether to build Lustre library])
2393 AC_ARG_ENABLE([liblustre],
2394 AC_HELP_STRING([--disable-liblustre],
2395 [disable building of Lustre library]),
2396 [],[enable_liblustre=$with_sysio])
2397 AC_MSG_RESULT([$enable_liblustre])
2398 # only build sysio if liblustre is built
2399 with_sysio="$enable_liblustre"
2401 AC_MSG_CHECKING([whether to build liblustre tests])
2402 AC_ARG_ENABLE([liblustre-tests],
2403 AC_HELP_STRING([--enable-liblustre-tests],
2404 [enable liblustre tests, if --disable-tests is used]),
2405 [],[enable_liblustre_tests=$enable_tests])
2406 if test x$enable_liblustre != xyes ; then
2407 enable_liblustre_tests='no'
2409 AC_MSG_RESULT([$enable_liblustre_tests])
2411 AC_MSG_CHECKING([whether to enable liblustre acl])
2412 AC_ARG_ENABLE([liblustre-acl],
2413 AC_HELP_STRING([--disable-liblustre-acl],
2414 [disable ACL support for liblustre]),
2415 [],[enable_liblustre_acl=yes])
2416 AC_MSG_RESULT([$enable_liblustre_acl])
2417 if test x$enable_liblustre_acl = xyes ; then
2418 AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
2421 # 2.6.29 change prepare/commit_write to write_begin/end
2422 AC_DEFUN([LC_WRITE_BEGIN_END],
2423 [AC_MSG_CHECKING([if kernel has .write_begin/end])
2424 LB_LINUX_TRY_COMPILE([
2425 #include <linux/fs.h>
2426 #include <linux/pagemap.h>
2427 #ifdef HAVE_LINUX_MMTYPES_H
2428 #include <linux/mm_types.h>
2431 struct address_space_operations aops;
2434 aops.write_begin = NULL;
2435 aops.write_end = NULL;
2436 page = grab_cache_page_write_begin(NULL, 0, 0);
2438 AC_MSG_RESULT([yes])
2439 AC_DEFINE(HAVE_KERNEL_WRITE_BEGIN_END, 1,
2440 [kernel has .write_begin/end])
2446 # 2.6.29 blkdev_put has 2 arguments
2447 AC_DEFUN([LC_BLKDEV_PUT_2ARGS],
2448 [AC_MSG_CHECKING([blkdev_put needs 2 parameters])
2449 LB_LINUX_TRY_COMPILE([
2450 #include <linux/fs.h>
2452 blkdev_put(NULL, 0);
2454 AC_DEFINE(HAVE_BLKDEV_PUT_2ARGS, 1,
2455 [blkdev_put needs 2 paramters])
2456 AC_MSG_RESULT([yes])
2462 # 2.6.29 dentry_open has 4 arguments
2463 AC_DEFUN([LC_DENTRY_OPEN_4ARGS],
2464 [AC_MSG_CHECKING([dentry_open needs 4 parameters])
2465 LB_LINUX_TRY_COMPILE([
2466 #include <linux/fs.h>
2468 dentry_open(NULL, NULL, 0, NULL);
2470 AC_DEFINE(HAVE_DENTRY_OPEN_4ARGS, 1,
2471 [dentry_open needs 4 paramters])
2472 AC_MSG_RESULT([yes])
2481 AC_ARG_ENABLE(mpitests,
2482 AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
2483 [include mpi tests]),
2494 MPICC_WRAPPER=$enableval
2504 if test x$enable_mpitests != xno; then
2505 AC_MSG_CHECKING([whether mpitests can be built])
2513 MPI_Initialized(&flag);
2516 AC_MSG_RESULT([yes])
2523 AC_SUBST(MPICC_WRAPPER)
2525 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
2526 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
2529 LC_CONFIG_LIBLUSTRE_RECOVERY
2535 # whether to enable quota support global control
2537 AC_DEFUN([LC_CONFIG_QUOTA],
2538 [AC_ARG_ENABLE([quota],
2539 AC_HELP_STRING([--enable-quota],
2540 [enable quota support]),
2541 [],[enable_quota='yes'])
2544 AC_DEFUN([LC_QUOTA],
2548 AC_CHECK_HEADER(sys/quota.h,
2549 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
2550 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
2556 # whether to enable split support
2558 AC_DEFUN([LC_CONFIG_SPLIT],
2559 [AC_MSG_CHECKING([whether to enable split support])
2560 AC_ARG_ENABLE([split],
2561 AC_HELP_STRING([--enable-split],
2562 [enable split support]),
2563 [],[enable_split='no'])
2564 AC_MSG_RESULT([$enable_split])
2565 if test x$enable_split != xno; then
2566 AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
2570 AC_DEFUN([LC_TASK_CLENV_TUX_INFO],
2571 [AC_MSG_CHECKING([tux_info])
2572 LB_LINUX_TRY_COMPILE([
2573 #include <linux/sched.h>
2575 struct task_struct task;
2578 AC_MSG_RESULT([yes])
2579 AC_DEFINE(LL_TASK_CL_ENV, tux_info, [have tux_info])
2580 have_task_clenv_store='yes'
2587 # LC_LLITE_LLOOP_MODULE
2588 # lloop_llite.ko does not currently work with page sizes
2591 AC_DEFUN([LC_LLITE_LLOOP_MODULE],
2592 [AC_MSG_CHECKING([whether to enable llite_lloop module])
2593 LB_LINUX_TRY_COMPILE([
2594 #include <asm/page.h>
2596 #if PAGE_SIZE >= 65536
2597 #error "PAGE_SIZE >= 65536"
2600 enable_llite_lloop_module='yes'
2601 AC_MSG_RESULT([yes])
2603 enable_llite_lloop_module='no'
2611 # other configure checks
2613 AC_DEFUN([LC_CONFIGURE],
2614 [LC_CONFIG_OBD_BUFFER_SIZE
2616 if test $target_cpu == "i686" -o $target_cpu == "x86_64"; then
2617 CFLAGS="$CFLAGS -Werror"
2620 # include/liblustre.h
2621 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
2623 # liblustre/llite_lib.h
2624 AC_CHECK_HEADERS([xtio.h file.h])
2627 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
2630 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
2631 AC_CHECK_FUNCS([inet_ntoa])
2633 # libsysio/src/readlink.c
2636 # lvfs/prng.c - depends on linux/types.h from liblustre/dir.c
2637 AC_CHECK_HEADERS([linux/random.h], [], [],
2638 [#ifdef HAVE_LINUX_TYPES_H
2639 # include <linux/types.h>
2644 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
2646 # check for -lz support
2650 [AC_CHECK_HEADERS([zlib.h],
2652 AC_DEFINE([HAVE_ADLER], 1,
2653 [support alder32 checksum type])],
2654 [AC_MSG_WARN([No zlib-devel package found,
2655 unable to use adler32 checksum])])],
2656 [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
2661 AC_ARG_ENABLE([mindf],
2662 AC_HELP_STRING([--enable-mindf],
2663 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
2665 if test "$enable_mindf" = "yes" ; then
2666 AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
2669 AC_ARG_ENABLE([fail_alloc],
2670 AC_HELP_STRING([--disable-fail-alloc],
2671 [disable randomly alloc failure]),
2672 [],[enable_fail_alloc=yes])
2673 AC_MSG_CHECKING([whether to randomly failing memory alloc])
2674 AC_MSG_RESULT([$enable_fail_alloc])
2675 if test x$enable_fail_alloc != xno ; then
2676 AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
2679 AC_ARG_ENABLE([invariants],
2680 AC_HELP_STRING([--enable-invariants],
2681 [enable invariant checking (cpu intensive)]),
2683 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
2684 AC_MSG_RESULT([$enable_invariants])
2685 if test x$enable_invariants = xyes ; then
2686 AC_DEFINE([INVARIANT_CHECK], 1, [enable invariant checking])
2689 AC_ARG_ENABLE([lu_ref],
2690 AC_HELP_STRING([--enable-lu_ref],
2691 [enable lu_ref reference tracking code]),
2693 AC_MSG_CHECKING([whether to track references with lu_ref])
2694 AC_MSG_RESULT([$enable_lu_ref])
2695 if test x$enable_lu_ref = xyes ; then
2696 AC_DEFINE([USE_LU_REF], 1, [enable lu_ref reference tracking code])
2699 AC_ARG_ENABLE([pgstate-track],
2700 AC_HELP_STRING([--enable-pgstate-track],
2701 [enable page state tracking]),
2702 [enable_pgstat_track='yes'],[])
2703 AC_MSG_CHECKING([whether to enable page state tracking])
2704 AC_MSG_RESULT([$enable_pgstat_track])
2705 if test x$enable_pgstat_track = xyes ; then
2706 AC_DEFINE([LUSTRE_PAGESTATE_TRACKING], 1,
2707 [enable page state tracking code])
2714 LC_DENTRY_OPEN_4ARGS
2721 # AM_CONDITIONALS for lustre
2723 AC_DEFUN([LC_CONDITIONALS],
2724 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
2725 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
2726 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
2727 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
2728 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
2729 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
2730 AM_CONDITIONAL(QUOTA, test x$enable_quota_module = xyes)
2731 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
2732 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
2733 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
2734 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
2735 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
2736 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
2737 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
2738 AM_CONDITIONAL(LLITE_LLOOP, test x$enable_llite_lloop_module = xyes)
2744 # files that should be generated with AC_OUTPUT
2746 AC_DEFUN([LC_CONFIG_FILES],
2750 lustre/autoconf/Makefile
2751 lustre/conf/Makefile
2752 lustre/contrib/Makefile
2754 lustre/include/Makefile
2755 lustre/include/lustre_ver.h
2756 lustre/include/linux/Makefile
2757 lustre/include/lustre/Makefile
2758 lustre/kernel_patches/targets/2.6-rhel6.target
2759 lustre/kernel_patches/targets/2.6-rhel5.target
2760 lustre/kernel_patches/targets/2.6-sles10.target
2761 lustre/kernel_patches/targets/2.6-sles11.target
2762 lustre/kernel_patches/targets/2.6-oel5.target
2763 lustre/kernel_patches/targets/2.6-fc11.target
2764 lustre/kernel_patches/targets/2.6-fc12.target
2765 lustre/ldlm/Makefile
2767 lustre/fid/autoMakefile
2768 lustre/liblustre/Makefile
2769 lustre/liblustre/tests/Makefile
2770 lustre/liblustre/tests/mpi/Makefile
2771 lustre/llite/Makefile
2772 lustre/llite/autoMakefile
2773 lustre/lclient/Makefile
2775 lustre/lov/autoMakefile
2776 lustre/lvfs/Makefile
2777 lustre/lvfs/autoMakefile
2779 lustre/mdc/autoMakefile
2781 lustre/lmv/autoMakefile
2783 lustre/mds/autoMakefile
2785 lustre/mdt/autoMakefile
2787 lustre/cmm/autoMakefile
2789 lustre/mdd/autoMakefile
2791 lustre/fld/autoMakefile
2792 lustre/obdclass/Makefile
2793 lustre/obdclass/autoMakefile
2794 lustre/obdclass/linux/Makefile
2795 lustre/obdecho/Makefile
2796 lustre/obdecho/autoMakefile
2797 lustre/obdfilter/Makefile
2798 lustre/obdfilter/autoMakefile
2800 lustre/osc/autoMakefile
2802 lustre/ost/autoMakefile
2803 lustre/osd-ldiskfs/Makefile
2804 lustre/osd-ldiskfs/autoMakefile
2806 lustre/mgc/autoMakefile
2808 lustre/mgs/autoMakefile
2809 lustre/ptlrpc/Makefile
2810 lustre/ptlrpc/autoMakefile
2811 lustre/ptlrpc/gss/Makefile
2812 lustre/ptlrpc/gss/autoMakefile
2813 lustre/quota/Makefile
2814 lustre/quota/autoMakefile
2815 lustre/scripts/Makefile
2816 lustre/tests/Makefile
2817 lustre/tests/mpi/Makefile
2818 lustre/utils/Makefile
2819 lustre/utils/gss/Makefile
2820 lustre/obdclass/darwin/Makefile