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 # Allow the user to set the MDS thread upper limit
170 AC_DEFUN([LC_MDS_MAX_THREADS],
172 AC_ARG_WITH([mds_max_threads],
173 AC_HELP_STRING([--with-mds-max-threads=size],
174 [define the maximum number of threads available on the MDS: (default=512)]),
176 MDS_THREAD_COUNT=$with_mds_max_threads
177 AC_DEFINE_UNQUOTED(MDT_MAX_THREADS, $MDS_THREAD_COUNT, [maximum number of mdt threads])
184 # the pinger is temporary, until we have the recovery node in place
186 AC_DEFUN([LC_CONFIG_PINGER],
187 [AC_MSG_CHECKING([whether to enable pinger support])
188 AC_ARG_ENABLE([pinger],
189 AC_HELP_STRING([--disable-pinger],
190 [disable recovery pinger support]),
191 [],[enable_pinger='yes'])
192 AC_MSG_RESULT([$enable_pinger])
193 if test x$enable_pinger != xno ; then
194 AC_DEFINE(ENABLE_PINGER, 1, Use the Pinger)
201 # do checksum of bulk data between client and OST
203 AC_DEFUN([LC_CONFIG_CHECKSUM],
204 [AC_MSG_CHECKING([whether to enable data checksum support])
205 AC_ARG_ENABLE([checksum],
206 AC_HELP_STRING([--disable-checksum],
207 [disable data checksum support]),
208 [],[enable_checksum='yes'])
209 AC_MSG_RESULT([$enable_checksum])
210 if test x$enable_checksum != xno ; then
211 AC_DEFINE(ENABLE_CHECKSUM, 1, do data checksums)
216 # LC_CONFIG_LIBLUSTRE_RECOVERY
218 AC_DEFUN([LC_CONFIG_LIBLUSTRE_RECOVERY],
219 [AC_MSG_CHECKING([whether to enable liblustre recovery support])
220 AC_ARG_ENABLE([liblustre-recovery],
221 AC_HELP_STRING([--disable-liblustre-recovery],
222 [disable liblustre recovery support]),
223 [],[enable_liblustre_recovery='yes'])
224 AC_MSG_RESULT([$enable_liblustre_recovery])
225 if test x$enable_liblustre_recovery != xno ; then
226 AC_DEFINE(ENABLE_LIBLUSTRE_RECOVERY, 1, Liblustre Can Recover)
231 # LC_CONFIG_HEALTH_CHECK_WRITE
233 # Turn off the actual write to the disk
235 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE],
236 [AC_MSG_CHECKING([whether to enable a write with the health check])
237 AC_ARG_ENABLE([health_write],
238 AC_HELP_STRING([--enable-health_write],
239 [enable disk writes when doing health check]),
240 [],[enable_health_write='no'])
241 AC_MSG_RESULT([$enable_health_write])
242 if test x$enable_health_write != xno ; then
243 AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, Write when Checking Health)
247 AC_DEFUN([LC_CONFIG_LRU_RESIZE],
248 [AC_MSG_CHECKING([whether to enable lru self-adjusting])
249 AC_ARG_ENABLE([lru_resize],
250 AC_HELP_STRING([--enable-lru-resize],
251 [enable lru resize support]),
252 [],[enable_lru_resize='yes'])
253 AC_MSG_RESULT([$enable_lru_resize])
254 if test x$enable_lru_resize != xno; then
255 AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])
259 # whether to enable quota support(kernel modules)
260 AC_DEFUN([LC_QUOTA_MODULE],
261 [if test x$enable_quota != xno; then
262 LB_LINUX_CONFIG([QUOTA],[
263 enable_quota_module='yes'
264 AC_DEFINE(HAVE_QUOTA_SUPPORT, 1, [Enable quota support])
266 enable_quota_module='no'
267 AC_MSG_WARN([quota is not enabled because the kernel - lacks quota support])
272 # truncate_complete_page() was exported from RHEL5/SLES10/SLES11
273 # remove_from_page_cache() was exported between 2.6.35 and 2.6.38
274 # delete_from_page_cache() is exported from 2.6.39
275 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE],
276 [LB_CHECK_SYMBOL_EXPORT([truncate_complete_page],
278 [AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
279 [kernel export truncate_complete_page])])
280 LB_CHECK_SYMBOL_EXPORT([remove_from_page_cache],
282 [AC_DEFINE(HAVE_REMOVE_FROM_PAGE_CACHE, 1,
283 [kernel export remove_from_page_cache])])
284 LB_CHECK_SYMBOL_EXPORT([delete_from_page_cache],
286 [AC_DEFINE(HAVE_DELETE_FROM_PAGE_CACHE, 1,
287 [kernel export delete_from_page_cache])])
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/$LINUX_ARCH/kernel/smpboot.c],
334 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
335 [node_to_cpumask is exported by
336 the kernel])]) # i386
340 # LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
342 # Check for our patched grab_cache_page_nowait_gfp() function
343 # after 2.6.29 we can emulate this using add_to_page_cache_lru()
345 AC_DEFUN([LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP],
346 [LB_CHECK_SYMBOL_EXPORT([grab_cache_page_nowait_gfp],
348 AC_DEFINE(HAVE_GRAB_CACHE_PAGE_NOWAIT_GFP, 1,
349 [kernel exports grab_cache_page_nowait_gfp])
351 [LB_CHECK_SYMBOL_EXPORT([add_to_page_cache_lru],
353 AC_DEFINE(HAVE_ADD_TO_PAGE_CACHE_LRU, 1,
354 [kernel exports add_to_page_cache_lru])
363 # AIX does not have statfs.f_namelen
365 AC_DEFUN([LC_STRUCT_STATFS],
366 [AC_MSG_CHECKING([if struct statfs has a f_namelen field])
367 LB_LINUX_TRY_COMPILE([
368 #include <linux/vfs.h>
374 AC_DEFINE(HAVE_STATFS_NAMELEN, 1, [struct statfs has a namelen field])
381 # between 2.6.5 - 2.6.22 filemap_populate is exported in some kernels
383 AC_DEFUN([LC_FILEMAP_POPULATE],
384 [AC_MSG_CHECKING([for exported filemap_populate])
385 LB_LINUX_TRY_COMPILE([
386 #include <asm/page.h>
387 #include <linux/mm.h>
389 filemap_populate(NULL, 0, 0, __pgprot(0), 0, 0);
392 AC_DEFINE(HAVE_FILEMAP_POPULATE, 1, [Kernel exports filemap_populate])
401 AC_DEFUN([LC_D_ADD_UNIQUE],
402 [AC_MSG_CHECKING([for d_add_unique])
403 LB_LINUX_TRY_COMPILE([
404 #include <linux/dcache.h>
406 d_add_unique(NULL, NULL);
409 AC_DEFINE(HAVE_D_ADD_UNIQUE, 1, [Kernel has d_add_unique])
418 AC_DEFUN([LC_BIT_SPINLOCK_H],
419 [LB_CHECK_FILE([$LINUX/include/linux/bit_spinlock.h],[
420 AC_MSG_CHECKING([if bit_spinlock.h can be compiled])
421 LB_LINUX_TRY_COMPILE([
422 #include <asm/processor.h>
423 #include <linux/spinlock.h>
424 #include <linux/bit_spinlock.h>
427 AC_DEFINE(HAVE_BIT_SPINLOCK_H, 1, [Kernel has bit_spinlock.h])
438 AC_DEFUN([LC_CONST_ACL_SIZE],
439 [AC_MSG_CHECKING([calc acl size])
441 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 -include $AUTOCONF_HDIR/autoconf.h $EXTRA_KCFLAGS"
444 #include <linux/types.h>
447 #define __LINUX_POSIX_ACL_H
449 #ifdef CONFIG_FS_POSIX_ACL
450 # include <linux/posix_acl_xattr.h>
457 /* LUSTRE_POSIX_ACL_MAX_ENTRIES = 32 */
458 int size = posix_acl_xattr_size(32);
459 FILE *f = fopen("acl.size","w+");
460 fprintf(f,"%d", size);
466 acl_size=`cat acl.size`
467 AC_MSG_RESULT([ACL size $acl_size])
468 AC_DEFINE_UNQUOTED(XATTR_ACL_SIZE, AS_TR_SH([$acl_size]), [size of xattr acl])
470 AC_ERROR([ACL size can't be computed])
472 AC_MSG_RESULT([can't check ACL size, make it 260])
473 AC_DEFINE_UNQUOTED(XATTR_ACL_SIZE,260)
480 AC_DEFUN([LC_STRUCT_INTENT_FILE],
481 [AC_MSG_CHECKING([if struct open_intent has a file field])
482 LB_LINUX_TRY_COMPILE([
483 #include <linux/fs.h>
484 #include <linux/namei.h>
486 struct open_intent intent;
490 AC_DEFINE(HAVE_FILE_IN_STRUCT_INTENT, 1, [struct open_intent has a file field])
499 AC_DEFUN([LC_CAPA_CRYPTO],
500 [LB_LINUX_CONFIG_IM([CRYPTO],[],[
501 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])
503 LB_LINUX_CONFIG_IM([CRYPTO_HMAC],[],[
504 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])
506 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],[
507 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])
512 # LC_CONFIG_RMTCLIENT
515 dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
517 AC_DEFUN([LC_CONFIG_RMTCLIENT],
518 [LB_LINUX_CONFIG_IM([CRYPTO_AES],[],[
519 AC_MSG_WARN([Lustre remote client require that CONFIG_CRYPTO_AES is enabled in your kernel.])
524 # LC_CONFIG_GSS_KEYRING (default enabled, if gss is enabled)
526 AC_DEFUN([LC_CONFIG_GSS_KEYRING],
527 [AC_MSG_CHECKING([whether to enable gss keyring backend])
528 AC_ARG_ENABLE([gss_keyring],
529 [AC_HELP_STRING([--disable-gss-keyring],
530 [disable gss keyring backend])],
531 [],[enable_gss_keyring='yes'])
532 AC_MSG_RESULT([$enable_gss_keyring])
534 if test x$enable_gss_keyring != xno; then
535 LB_LINUX_CONFIG_IM([KEYS],[],
536 [AC_MSG_ERROR([GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.])])
538 AC_CHECK_LIB([keyutils], [keyctl_search], [],
539 [AC_MSG_ERROR([libkeyutils is not found, which is required by gss keyring backend])],)
541 AC_DEFINE([HAVE_GSS_KEYRING], [1],
542 [Define this if you enable gss keyring backend])
546 AC_DEFUN([LC_SUNRPC_CACHE],
547 [AC_MSG_CHECKING([if sunrpc struct cache_head uses kref])
548 LB_LINUX_TRY_COMPILE([
549 #include <linux/sunrpc/cache.h>
551 struct cache_head ch;
555 AC_DEFINE(HAVE_SUNRPC_CACHE_V2, 1, [sunrpc cache facility v2])
561 AC_DEFUN([LC_CONFIG_SUNRPC],
562 [LB_LINUX_CONFIG_IM([SUNRPC],[],
563 [AC_MSG_ERROR([kernel SUNRPC support is required by using GSS.])])
568 # LC_CONFIG_GSS (default disabled)
570 # Build gss and related tools of Lustre. Currently both kernel and user space
571 # parts are depend on linux platform.
573 AC_DEFUN([LC_CONFIG_GSS],
574 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
576 [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
577 [],[enable_gss='no'])
578 AC_MSG_RESULT([$enable_gss])
580 if test x$enable_gss == xyes; then
581 LC_CONFIG_GSS_KEYRING
584 AC_DEFINE([HAVE_GSS], [1], [Define this if you enable gss])
586 LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
587 [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
588 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
589 [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
590 LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
591 [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
592 LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
593 [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
595 AC_CHECK_LIB([gssapi], [gss_init_sec_context],
596 [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"],
597 [AC_CHECK_LIB([gssglue], [gss_init_sec_context],
598 [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue"],
599 [AC_MSG_ERROR([libgssapi or libgssglue is not found, which is required by GSS.])])],)
601 AC_SUBST(GSSAPI_LIBS)
608 # LC_FUNC_HAVE_CAN_SLEEP_ARG
610 # 2.6.5 kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()
612 AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG],
613 [AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
614 LB_LINUX_TRY_COMPILE([
615 #include <linux/fs.h>
619 struct file_lock *file_lock;
620 flock_lock_file_wait(file, file_lock, cansleep);
622 AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1,
623 [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
633 # rhel4.2 kernel has f_op->flock field
635 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
636 [AC_MSG_CHECKING([if struct file_operations has flock field])
637 LB_LINUX_TRY_COMPILE([
638 #include <linux/fs.h>
640 struct file_operations ll_file_operations_flock;
641 ll_file_operations_flock.flock = NULL;
643 AC_DEFINE(HAVE_F_OP_FLOCK, 1,
644 [struct file_operations has flock field])
651 AC_DEFUN([LC_QUOTA_READ],
652 [AC_MSG_CHECKING([if kernel supports quota_read])
653 LB_LINUX_TRY_COMPILE([
654 #include <linux/fs.h>
656 struct super_operations sp;
657 void *i = (void *)sp.quota_read;
660 AC_DEFINE(KERNEL_SUPPORTS_QUOTA_READ, 1, [quota_read found])
667 # LC_COOKIE_FOLLOW_LINK
669 # kernel 2.6.13+ ->follow_link returns a cookie
672 AC_DEFUN([LC_COOKIE_FOLLOW_LINK],
673 [AC_MSG_CHECKING([if inode_operations->follow_link returns a cookie])
674 LB_LINUX_TRY_COMPILE([
675 #include <linux/fs.h>
676 #include <linux/namei.h>
678 struct dentry dentry;
681 dentry.d_inode->i_op->put_link(&dentry, &nd, NULL);
683 AC_DEFINE(HAVE_COOKIE_FOLLOW_LINK, 1, [inode_operations->follow_link returns a cookie])
693 # kernels prior than 2.6.0(?) have no RCU supported; in kernel 2.6.5(SUSE),
694 # call_rcu takes three parameters.
696 AC_DEFUN([LC_FUNC_RCU],
697 [AC_MSG_CHECKING([if kernel have RCU supported])
698 LB_LINUX_TRY_COMPILE([
699 #include <linux/rcupdate.h>
701 AC_DEFINE(HAVE_RCU, 1, [have RCU defined])
704 AC_MSG_CHECKING([if call_rcu takes three parameters])
705 LB_LINUX_TRY_COMPILE([
706 #include <linux/rcupdate.h>
709 call_rcu(&rh, (void (*)(struct rcu_head *))1, NULL);
711 AC_DEFINE(HAVE_CALL_RCU_PARAM, 1, [call_rcu takes three parameters])
722 AC_DEFUN([LC_PERCPU_COUNTER],
723 [AC_MSG_CHECKING([if have struct percpu_counter defined])
724 LB_LINUX_TRY_COMPILE([
725 #include <linux/percpu_counter.h>
727 AC_DEFINE(HAVE_PERCPU_COUNTER, 1, [percpu_counter found])
730 AC_MSG_CHECKING([if percpu_counter_inc takes the 2nd argument])
731 LB_LINUX_TRY_COMPILE([
732 #include <linux/percpu_counter.h>
734 struct percpu_counter c;
735 percpu_counter_init(&c, 0);
737 AC_DEFINE(HAVE_PERCPU_2ND_ARG, 1, [percpu_counter_init has two
748 AC_DEFUN([LC_TASK_CLENV_STORE],
750 AC_MSG_CHECKING([if we can store cl_env in task_struct])
751 if test x$have_task_clenv_store != xyes ; then
752 LC_TASK_CLENV_TUX_INFO
758 AC_DEFUN([LC_S_TIME_GRAN],
759 [AC_MSG_CHECKING([if super block has s_time_gran member])
760 LB_LINUX_TRY_COMPILE([
761 #include <linux/fs.h>
763 struct super_block sb;
765 return sb.s_time_gran;
768 AC_DEFINE(HAVE_S_TIME_GRAN, 1, [super block has s_time_gran member])
774 AC_DEFUN([LC_SB_TIME_GRAN],
775 [AC_MSG_CHECKING([if kernel has old get_sb_time_gran])
776 LB_LINUX_TRY_COMPILE([
777 #include <linux/fs.h>
779 return get_sb_time_gran(NULL);
782 AC_DEFINE(HAVE_SB_TIME_GRAN, 1, [kernel has old get_sb_time_gran])
790 # ~2.6.12 merge patch from oracle to convert tree_lock from spinlock to rwlock
791 AC_DEFUN([LC_RW_TREE_LOCK],
792 [AC_MSG_CHECKING([if kernel has tree_lock as rwlock])
793 tmp_flags="$EXTRA_KCFLAGS"
794 EXTRA_KCFLAGS="-Werror"
795 LB_LINUX_TRY_COMPILE([
796 #include <linux/fs.h>
798 struct address_space a;
800 write_lock(&a.tree_lock);
803 AC_DEFINE(HAVE_RW_TREE_LOCK, 1, [kernel has tree_lock as rw_lock])
807 EXTRA_KCFLAGS="$tmp_flags"
813 # after 2.6.15 inode have i_mutex intead of i_sem
814 AC_DEFUN([LC_INODE_I_MUTEX],
815 [AC_MSG_CHECKING([if inode has i_mutex ])
816 LB_LINUX_TRY_COMPILE([
817 #include <linux/mutex.h>
818 #include <linux/fs.h>
823 mutex_unlock(&i.i_mutex);
826 AC_DEFINE(HAVE_INODE_I_MUTEX, 1,
827 [after 2.6.15 inode have i_mutex intead of i_sem])
835 # LC_SECURITY_PLUG # for SLES10 SP2
836 # check security plug in sles10 sp2 kernel
837 AC_DEFUN([LC_SECURITY_PLUG],
838 [AC_MSG_CHECKING([If kernel has security plug support])
839 LB_LINUX_TRY_COMPILE([
840 #include <linux/fs.h>
842 struct dentry *dentry;
843 struct vfsmount *mnt;
846 notify_change(dentry, mnt, iattr);
849 AC_DEFINE(HAVE_SECURITY_PLUG, 1,
850 [SLES10 SP2 use extra parameter in vfs])
858 # inode have i_private field since 2.6.17
859 AC_DEFUN([LC_INODE_IPRIVATE],
860 [AC_MSG_CHECKING([if inode has a i_private field])
861 LB_LINUX_TRY_COMPILE([
862 #include <linux/fs.h>
868 AC_DEFINE(HAVE_INODE_IPRIVATE, 1,
869 [struct inode has i_private field])
876 # after 2.6.17 dquote use mutex instead if semaphore
877 AC_DEFUN([LC_DQUOTOFF_MUTEX],
878 [AC_MSG_CHECKING([use dqonoff_mutex])
879 LB_LINUX_TRY_COMPILE([
880 #include <linux/mutex.h>
881 #include <linux/fs.h>
882 #include <linux/quota.h>
884 struct quota_info dq;
886 mutex_unlock(&dq.dqonoff_mutex);
889 AC_DEFINE(HAVE_DQUOTOFF_MUTEX, 1,
890 [after 2.6.17 dquote use mutex instead if semaphore])
899 # 2.6.18 don't export nr_pagecahe
900 AC_DEFUN([LC_NR_PAGECACHE],
901 [AC_MSG_CHECKING([kernel export nr_pagecache])
902 LB_LINUX_TRY_COMPILE([
903 #include <linux/pagemap.h>
905 return atomic_read(&nr_pagecache);
908 AC_DEFINE(HAVE_NR_PAGECACHE, 1,
909 [is kernel export nr_pagecache])
916 # LC_STATFS_DENTRY_PARAM
917 # starting from 2.6.18 linux kernel uses dentry instead of super_block
918 # for the first parameter of the super_operations->statfs() callback.
921 AC_DEFUN([LC_STATFS_DENTRY_PARAM],
922 [AC_MSG_CHECKING([if super_ops.statfs() first parameter is dentry])
923 tmp_flags="$EXTRA_KCFLAGS"
924 EXTRA_KCFLAGS="-Werror"
925 LB_LINUX_TRY_COMPILE([
926 #include <linux/fs.h>
928 ((struct super_operations *)0)->statfs((struct dentry *)0, (struct kstatfs*)0);
930 AC_DEFINE(HAVE_STATFS_DENTRY_PARAM, 1,
931 [super_ops.statfs() first parameter is dentry])
936 EXTRA_KCFLAGS="$tmp_flags"
941 # starting from 2.6.18 kernel don't export do_kern_mount
942 # and want to use vfs_kern_mount instead.
944 AC_DEFUN([LC_VFS_KERN_MOUNT],
945 [AC_MSG_CHECKING([vfs_kern_mount exist in kernel])
946 LB_LINUX_TRY_COMPILE([
947 #include <linux/mount.h>
949 vfs_kern_mount(NULL, 0, NULL, NULL);
951 AC_DEFINE(HAVE_VFS_KERN_MOUNT, 1,
952 [vfs_kern_mount exist in kernel])
960 # LC_INVALIDATEPAGE_RETURN_INT
961 # 2.6.17 changes return type for invalidatepage to 'void' from 'int'
963 AC_DEFUN([LC_INVALIDATEPAGE_RETURN_INT],
964 [AC_MSG_CHECKING([invalidatepage has return int])
965 LB_LINUX_TRY_COMPILE([
966 #include <linux/buffer_head.h>
968 int rc = block_invalidatepage(NULL, 0);
971 AC_DEFINE(HAVE_INVALIDATEPAGE_RETURN_INT, 1,
972 [Define if return type of invalidatepage should be int])
978 # LC_UMOUNTBEGIN_HAS_VFSMOUNT
979 # after 2.6.18 umount_begin has different parameters
980 AC_DEFUN([LC_UMOUNTBEGIN_HAS_VFSMOUNT],
981 [AC_MSG_CHECKING([if umount_begin needs vfsmount parameter instead of super_block])
982 tmp_flags="$EXTRA_KCFLAGS"
983 EXTRA_KCFLAGS="-Werror"
984 LB_LINUX_TRY_COMPILE([
985 #include <linux/fs.h>
988 static void cfg_umount_begin (struct vfsmount *v, int flags)
993 static struct super_operations cfg_super_operations = {
994 .umount_begin = cfg_umount_begin,
997 cfg_super_operations.umount_begin(NULL,0);
1000 AC_DEFINE(HAVE_UMOUNTBEGIN_VFSMOUNT, 1,
1001 [Define umount_begin need second argument])
1005 EXTRA_KCFLAGS="$tmp_flags"
1009 # after 2.6.18 seq_file has lock intead of sem
1010 AC_DEFUN([LC_SEQ_LOCK],
1011 [AC_MSG_CHECKING([if struct seq_file has lock field])
1012 LB_LINUX_TRY_COMPILE([
1013 #include <linux/seq_file.h>
1015 struct seq_file seq;
1017 mutex_unlock(&seq.lock);
1020 AC_DEFINE(HAVE_SEQ_LOCK, 1,
1021 [after 2.6.18 seq_file has lock intead of sem])
1028 # LC_EXPORT_FILEMAP_FDATAWRITE_RANGE
1030 # No standard kernels export this
1032 AC_DEFUN([LC_EXPORT_FILEMAP_FDATAWRITE_RANGE],
1033 [LB_CHECK_SYMBOL_EXPORT([filemap_fdatawrite_range],
1035 AC_DEFINE(HAVE_FILEMAP_FDATAWRITE_RANGE, 1,
1036 [filemap_fdatawrite_range is exported by the kernel])
1042 # starting from 2.6.18 the file_operations .flush
1043 # method has a new "fl_owner_t id" parameter
1045 AC_DEFUN([LC_FLUSH_OWNER_ID],
1046 [AC_MSG_CHECKING([if file_operations .flush has an fl_owner_t id])
1047 LB_LINUX_TRY_COMPILE([
1048 #include <linux/fs.h>
1050 struct file_operations *fops = NULL;
1054 i = fops->flush(NULL, id);
1056 AC_DEFINE(HAVE_FLUSH_OWNER_ID, 1,
1057 [file_operations .flush method has an fl_owner_t id])
1058 AC_MSG_RESULT([yes])
1065 # LC_EXPORT_INVALIDATE_MAPPING_PAGES
1067 # SLES9, RHEL4, RHEL5, vanilla 2.6.24 export invalidate_mapping_pages() but
1068 # SLES10 2.6.16 does not, for some reason. For filter cache invalidation.
1070 AC_DEFUN([LC_EXPORT_INVALIDATE_MAPPING_PAGES],
1071 [LB_CHECK_SYMBOL_EXPORT([invalidate_mapping_pages], [mm/truncate.c], [
1072 AC_DEFINE(HAVE_INVALIDATE_MAPPING_PAGES, 1,
1073 [exported invalidate_mapping_pages])],
1074 [LB_CHECK_SYMBOL_EXPORT([invalidate_inode_pages], [mm/truncate.c], [
1075 AC_DEFINE(HAVE_INVALIDATE_INODE_PAGES, 1,
1076 [exported invalidate_inode_pages])], [
1077 AC_MSG_ERROR([no way to invalidate pages])
1082 #2.6.18 + RHEL5 (fc6)
1084 # RHEL5 in FS-cache patch rename PG_checked flag into PG_fs_misc
1085 AC_DEFUN([LC_PG_FS_MISC],
1086 [AC_MSG_CHECKING([kernel has PG_fs_misc])
1087 LB_LINUX_TRY_COMPILE([
1088 #include <linux/mm.h>
1089 #include <linux/page-flags.h>
1092 #error PG_fs_misc not defined in kernel
1096 AC_DEFINE(HAVE_PG_FS_MISC, 1,
1097 [is kernel have PG_fs_misc])
1103 # RHEL5 PageChecked and SetPageChecked defined
1104 AC_DEFUN([LC_PAGE_CHECKED],
1105 [AC_MSG_CHECKING([kernel has PageChecked and SetPageChecked])
1106 LB_LINUX_TRY_COMPILE([
1107 #include <linux/mm.h>
1108 #ifdef HAVE_LINUX_MMTYPES_H
1109 #include <linux/mm_types.h>
1111 #include <linux/page-flags.h>
1113 struct page *p = NULL;
1115 /* before 2.6.26 this define*/
1117 /* 2.6.26 use function instead of define for it */
1123 AC_DEFINE(HAVE_PAGE_CHECKED, 1,
1124 [does kernel have PageChecked and SetPageChecked])
1133 # If we have fiemap.h
1134 # after 2.6.27 use fiemap.h in include/linux
1136 AC_DEFUN([LC_LINUX_FIEMAP_H],
1137 [LB_CHECK_FILE([$LINUX/include/linux/fiemap.h],[
1138 AC_MSG_CHECKING([if fiemap.h can be compiled])
1139 LB_LINUX_TRY_COMPILE([
1140 #include <linux/types.h>
1141 #include <linux/fiemap.h>
1143 AC_MSG_RESULT([yes])
1144 AC_DEFINE(HAVE_LINUX_FIEMAP_H, 1, [Kernel has fiemap.h])
1154 # 2.6.19 API changes
1155 # inode don't have i_blksize field
1156 AC_DEFUN([LC_INODE_BLKSIZE],
1157 [AC_MSG_CHECKING([inode has i_blksize field])
1158 LB_LINUX_TRY_COMPILE([
1159 #include <linux/fs.h>
1165 AC_DEFINE(HAVE_INODE_BLKSIZE, 1,
1166 [struct inode has i_blksize field])
1173 # 2.6.19 replaced writev with aio_write
1174 AC_DEFUN([LC_FILE_WRITEV],
1175 [AC_MSG_CHECKING([writev in fops])
1176 LB_LINUX_TRY_COMPILE([
1177 #include <linux/fs.h>
1179 struct file_operations *fops = NULL;
1180 fops->writev = NULL;
1183 AC_DEFINE(HAVE_FILE_WRITEV, 1,
1191 # 2.6.19 replaced readv with aio_read
1192 AC_DEFUN([LC_FILE_READV],
1193 [AC_MSG_CHECKING([readv in fops])
1194 LB_LINUX_TRY_COMPILE([
1195 #include <linux/fs.h>
1197 struct file_operations *fops = NULL;
1201 AC_DEFINE(HAVE_FILE_READV, 1,
1210 # LC_CANCEL_DIRTY_PAGE
1211 # 2.6.20 introduced cancel_dirty_page instead of clear_page_dirty.
1212 AC_DEFUN([LC_CANCEL_DIRTY_PAGE],
1213 [AC_MSG_CHECKING([kernel has cancel_dirty_page])
1214 # the implementation of cancel_dirty_page in OFED 1.4.1's SLES10 SP2
1215 # backport is broken, so ignore it
1216 if test -f $OFED_BACKPORT_PATH/linux/mm.h &&
1217 test "$(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
1220 LB_LINUX_TRY_COMPILE([
1221 #include <linux/mm.h>
1222 #include <linux/page-flags.h>
1224 cancel_dirty_page(NULL, 0);
1227 AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
1228 [kernel has cancel_dirty_page instead of clear_page_dirty])
1235 # raid5-zerocopy patch
1240 # In order to support raid5 zerocopy patch, we have to patch the kernel to make
1241 # it support constant page, which means the page won't be modified during the
1244 AC_DEFUN([LC_PAGE_CONSTANT],
1245 [AC_MSG_CHECKING([if kernel have PageConstant defined])
1246 LB_LINUX_TRY_COMPILE([
1247 #include <linux/mm.h>
1248 #include <linux/page-flags.h>
1251 #error "Have no raid5 zcopy patch"
1255 AC_DEFINE(HAVE_PAGE_CONSTANT, 1, [kernel have PageConstant supported])
1263 # 2.6.22 lost second parameter for invalidate_bdev
1264 AC_DEFUN([LC_INVALIDATE_BDEV_2ARG],
1265 [AC_MSG_CHECKING([if invalidate_bdev has second argument])
1266 LB_LINUX_TRY_COMPILE([
1267 #include <linux/buffer_head.h>
1269 invalidate_bdev(NULL,0);
1271 AC_MSG_RESULT([yes])
1272 AC_DEFINE(HAVE_INVALIDATE_BDEV_2ARG, 1,
1273 [invalidate_bdev has second argument])
1280 # check for crypto API
1282 AC_DEFUN([LC_ASYNC_BLOCK_CIPHER],
1283 [AC_MSG_CHECKING([if kernel has block cipher support])
1284 LB_LINUX_TRY_COMPILE([
1285 #include <linux/err.h>
1286 #include <linux/crypto.h>
1288 struct crypto_blkcipher *tfm;
1289 tfm = crypto_alloc_blkcipher("aes", 0, sizeof(tfm) );
1291 AC_MSG_RESULT([yes])
1292 AC_DEFINE(HAVE_ASYNC_BLOCK_CIPHER, 1, [kernel has block cipher support])
1299 # check for struct hash_desc
1301 AC_DEFUN([LC_STRUCT_HASH_DESC],
1302 [AC_MSG_CHECKING([if kernel has struct hash_desc])
1303 LB_LINUX_TRY_COMPILE([
1304 #include <linux/err.h>
1305 #include <linux/crypto.h>
1307 struct hash_desc foo;
1309 AC_MSG_RESULT([yes])
1310 AC_DEFINE(HAVE_STRUCT_HASH_DESC, 1, [kernel has struct hash_desc])
1317 # check for struct blkcipher_desc
1319 AC_DEFUN([LC_STRUCT_BLKCIPHER_DESC],
1320 [AC_MSG_CHECKING([if kernel has struct blkcipher_desc])
1321 LB_LINUX_TRY_COMPILE([
1322 #include <linux/err.h>
1323 #include <linux/crypto.h>
1325 struct blkcipher_desc foo;
1327 AC_MSG_RESULT([yes])
1328 AC_DEFINE(HAVE_STRUCT_BLKCIPHER_DESC, 1, [kernel has struct blkcipher_desc])
1335 # 2.6.19 check for FS_RENAME_DOES_D_MOVE flag
1337 AC_DEFUN([LC_FS_RENAME_DOES_D_MOVE],
1338 [AC_MSG_CHECKING([if kernel has FS_RENAME_DOES_D_MOVE flag])
1339 LB_LINUX_TRY_COMPILE([
1340 #include <linux/fs.h>
1342 int v = FS_RENAME_DOES_D_MOVE;
1344 AC_MSG_RESULT([yes])
1345 AC_DEFINE(HAVE_FS_RENAME_DOES_D_MOVE, 1, [kernel has FS_RENAME_DOES_D_MOVE flag])
1353 # 2.6.23 have return type 'void' for unregister_blkdev
1354 AC_DEFUN([LC_UNREGISTER_BLKDEV_RETURN_INT],
1355 [AC_MSG_CHECKING([if unregister_blkdev return int])
1356 LB_LINUX_TRY_COMPILE([
1357 #include <linux/fs.h>
1359 int i = unregister_blkdev(0,NULL);
1361 AC_MSG_RESULT([yes])
1362 AC_DEFINE(HAVE_UNREGISTER_BLKDEV_RETURN_INT, 1,
1363 [unregister_blkdev return int])
1369 # 2.6.23 change .sendfile to .splice_read
1370 AC_DEFUN([LC_KERNEL_SPLICE_READ],
1371 [AC_MSG_CHECKING([if kernel has .splice_read])
1372 LB_LINUX_TRY_COMPILE([
1373 #include <linux/fs.h>
1375 struct file_operations file;
1377 file.splice_read = NULL;
1379 AC_MSG_RESULT([yes])
1380 AC_DEFINE(HAVE_KERNEL_SPLICE_READ, 1,
1381 [kernel has .slice_read])
1387 # 2.6.23 change .sendfile to .splice_read
1388 # RHEL4 (-92 kernel) have both sendfile and .splice_read API
1389 AC_DEFUN([LC_KERNEL_SENDFILE],
1390 [AC_MSG_CHECKING([if kernel has .sendfile])
1391 LB_LINUX_TRY_COMPILE([
1392 #include <linux/fs.h>
1394 struct file_operations file;
1396 file.sendfile = NULL;
1398 AC_MSG_RESULT([yes])
1399 AC_DEFINE(HAVE_KERNEL_SENDFILE, 1,
1400 [kernel has .sendfile])
1406 # 2.6.23 extract nfs export related data into exportfs.h
1407 AC_DEFUN([LC_HAVE_EXPORTFS_H],
1408 [LB_CHECK_FILE([$LINUX/include/linux/exportfs.h], [
1409 AC_DEFINE(HAVE_LINUX_EXPORTFS_H, 1,
1410 [kernel has include/exportfs.h])
1416 # 2.6.23 has new page fault handling API
1417 AC_DEFUN([LC_VM_OP_FAULT],
1418 [AC_MSG_CHECKING([kernel has .fault in vm_operation_struct])
1419 LB_LINUX_TRY_COMPILE([
1420 #include <linux/mm.h>
1422 struct vm_operations_struct op;
1426 AC_MSG_RESULT([yes])
1427 AC_DEFINE(HAVE_VM_OP_FAULT, 1,
1428 [kernel has .fault in vm_operation_struct])
1434 # 2.6.23 add code to wait other users to complete before removing procfs entry
1435 AC_DEFUN([LC_PROCFS_USERS],
1436 [AC_MSG_CHECKING([if kernel has pde_users member in procfs entry struct])
1437 LB_LINUX_TRY_COMPILE([
1438 #include <linux/proc_fs.h>
1440 struct proc_dir_entry pde;
1444 AC_MSG_RESULT([yes])
1445 AC_DEFINE(HAVE_PROCFS_USERS, 1,
1446 [kernel has pde_users member in procfs entry struct])
1452 # 2.6.23 exports exportfs_decode_fh
1453 AC_DEFUN([LC_EXPORTFS_DECODE_FH],
1454 [LB_CHECK_SYMBOL_EXPORT([exportfs_decode_fh],
1455 [fs/exportfs/expfs.c],[
1456 AC_DEFINE(HAVE_EXPORTFS_DECODE_FH, 1,
1457 [exportfs_decode_fh has been export])
1464 # 2.6.24 need linux/mm_types.h included
1465 AC_DEFUN([LC_HAVE_MMTYPES_H],
1466 [LB_CHECK_FILE([$LINUX/include/linux/mm_types.h], [
1467 AC_DEFINE(HAVE_LINUX_MMTYPES_H, 1,
1468 [kernel has include/mm_types.h])
1474 # 2.6.24 has bio_endio with 2 args
1475 AC_DEFUN([LC_BIO_ENDIO_2ARG],
1476 [AC_MSG_CHECKING([if kernel has bio_endio with 2 args])
1477 LB_LINUX_TRY_COMPILE([
1478 #include <linux/bio.h>
1482 AC_MSG_RESULT([yes])
1483 AC_DEFINE(HAVE_BIO_ENDIO_2ARG, 1,
1484 [kernel has bio_endio with 2 args])
1490 # 2.6.24 has new members in exports struct.
1491 AC_DEFUN([LC_FH_TO_DENTRY],
1492 [AC_MSG_CHECKING([if kernel has .fh_to_dentry member in export_operations struct])
1493 LB_LINUX_TRY_COMPILE([
1494 #include <linux/fs.h>
1495 #ifdef HAVE_LINUX_EXPORTFS_H
1496 #include <linux/exportfs.h>
1499 struct export_operations exp;
1500 memset(exp.fh_to_dentry, 0, sizeof(exp.fh_to_dentry));
1502 AC_MSG_RESULT([yes])
1503 AC_DEFINE(HAVE_FH_TO_DENTRY, 1,
1504 [kernel has .fh_to_dentry member in export_operations struct])
1510 # 2.6.24 removes long aged procfs entry -> deleted member
1511 AC_DEFUN([LC_PROCFS_DELETED],
1512 [AC_MSG_CHECKING([if kernel has deleted member in procfs entry struct])
1513 LB_LINUX_TRY_COMPILE([
1514 #include <linux/proc_fs.h>
1516 struct proc_dir_entry pde;
1518 pde.deleted = sizeof(pde);
1520 AC_MSG_RESULT([yes])
1521 AC_DEFINE(HAVE_PROCFS_DELETED, 1,
1522 [kernel has deleted member in procfs entry struct])
1528 # 2.6.24 has bdi_init()/bdi_destroy() functions.
1529 AC_DEFUN([LC_EXPORT_BDI_INIT],
1530 [LB_CHECK_SYMBOL_EXPORT([bdi_init],
1531 [mm/backing-dev.c],[
1532 AC_DEFINE(HAVE_BDI_INIT, 1,
1533 [bdi_init/bdi_destroy functions are present])
1540 # 2.6.25 change define to inline
1541 AC_DEFUN([LC_MAPPING_CAP_WRITEBACK_DIRTY],
1542 [AC_MSG_CHECKING([if kernel have mapping_cap_writeback_dirty])
1543 LB_LINUX_TRY_COMPILE([
1544 #include <linux/backing-dev.h>
1546 #ifndef mapping_cap_writeback_dirty
1547 mapping_cap_writeback_dirty(NULL);
1550 AC_MSG_RESULT([yes])
1551 AC_DEFINE(HAVE_MAPPING_CAP_WRITEBACK_DIRTY, 1,
1552 [kernel have mapping_cap_writeback_dirty])
1560 # 2.6.26 isn't export set_fs_pwd and change paramter in fs struct
1561 AC_DEFUN([LC_FS_STRUCT_USE_PATH],
1562 [AC_MSG_CHECKING([fs_struct use path structure])
1563 LB_LINUX_TRY_COMPILE([
1564 #include <asm/atomic.h>
1565 #include <linux/spinlock.h>
1566 #include <linux/fs_struct.h>
1569 struct fs_struct fs;
1572 memset(&fs, 0, sizeof(fs));
1574 AC_MSG_RESULT([yes])
1575 AC_DEFINE(HAVE_FS_STRUCT_USE_PATH, 1,
1576 [fs_struct use path structure])
1586 AC_DEFUN([LC_INODE_PERMISION_2ARGS],
1587 [AC_MSG_CHECKING([inode_operations->permission has two args])
1588 LB_LINUX_TRY_COMPILE([
1589 #include <linux/fs.h>
1591 struct inode *inode;
1592 inode->i_op->permission(NULL, 0);
1594 AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
1595 [inode_operations->permission has two args])
1596 AC_MSG_RESULT([yes])
1602 # 2.6.27 has file_remove_suid instead of remove_suid
1603 AC_DEFUN([LC_FILE_REMOVE_SUID],
1604 [AC_MSG_CHECKING([kernel has file_remove_suid])
1605 LB_LINUX_TRY_COMPILE([
1606 #include <linux/fs.h>
1608 file_remove_suid(NULL);
1610 AC_DEFINE(HAVE_FILE_REMOVE_SUID, 1,
1611 [kernel have file_remove_suid])
1612 AC_MSG_RESULT([yes])
1618 # 2.6.27 have new page locking API
1619 AC_DEFUN([LC_TRYLOCKPAGE],
1620 [AC_MSG_CHECKING([kernel uses trylock_page for page lock])
1621 LB_LINUX_TRY_COMPILE([
1622 #include <linux/pagemap.h>
1626 AC_DEFINE(HAVE_TRYLOCK_PAGE, 1,
1627 [kernel uses trylock_page for page lock])
1628 AC_MSG_RESULT([yes])
1634 # 2.6.27 removed the read_inode from super_operations.
1635 AC_DEFUN([LC_READ_INODE_IN_SBOPS],
1636 [AC_MSG_CHECKING([super_operations has a read_inode field])
1637 LB_LINUX_TRY_COMPILE([
1638 #include <linux/fs.h>
1640 struct super_operations *sop;
1641 sop->read_inode(NULL);
1643 AC_DEFINE(HAVE_READ_INODE_IN_SBOPS, 1,
1644 [super_operations has a read_inode])
1645 AC_MSG_RESULT([yes])
1651 # 2.6.27 has inode_permission instead of permisson
1652 AC_DEFUN([LC_EXPORT_INODE_PERMISSION],
1653 [LB_CHECK_SYMBOL_EXPORT([inode_permission],
1655 AC_DEFINE(HAVE_EXPORT_INODE_PERMISSION, 1,
1656 [inode_permission is exported by the kernel])
1661 # 2.6.27 use 5th parameter in quota_on for remount.
1662 AC_DEFUN([LC_QUOTA_ON_5ARGS],
1663 [AC_MSG_CHECKING([quota_on needs 5 parameters])
1664 LB_LINUX_TRY_COMPILE([
1665 #include <linux/quota.h>
1667 struct quotactl_ops *qop;
1668 qop->quota_on(NULL, 0, 0, NULL, 0);
1670 AC_DEFINE(HAVE_QUOTA_ON_5ARGS, 1,
1671 [quota_on needs 5 paramters])
1672 AC_MSG_RESULT([yes])
1678 # 2.6.27 use 3th parameter in quota_off for remount.
1679 AC_DEFUN([LC_QUOTA_OFF_3ARGS],
1680 [AC_MSG_CHECKING([quota_off needs 3 parameters])
1681 LB_LINUX_TRY_COMPILE([
1682 #include <linux/quota.h>
1684 struct quotactl_ops *qop;
1685 qop->quota_off(NULL, 0, 0);
1687 AC_DEFINE(HAVE_QUOTA_OFF_3ARGS, 1,
1688 [quota_off needs 3 paramters])
1689 AC_MSG_RESULT([yes])
1695 # 2.6.27 has vfs_dq_off inline function.
1696 AC_DEFUN([LC_VFS_DQ_OFF],
1697 [AC_MSG_CHECKING([vfs_dq_off is defined])
1698 LB_LINUX_TRY_COMPILE([
1699 #include <linux/quotaops.h>
1701 vfs_dq_off(NULL, 0);
1703 AC_DEFINE(HAVE_VFS_DQ_OFF, 1, [vfs_dq_off is defined])
1704 AC_MSG_RESULT([yes])
1710 # LC_LOCK_MAP_ACQUIRE
1711 # after 2.6.27 lock_map_acquire replaces lock_acquire
1712 AC_DEFUN([LC_LOCK_MAP_ACQUIRE],
1713 [AC_MSG_CHECKING([if lock_map_acquire is defined])
1714 LB_LINUX_TRY_COMPILE([
1715 #include <linux/lockdep.h>
1717 lock_map_acquire(NULL);
1720 AC_DEFINE(HAVE_LOCK_MAP_ACQUIRE, 1,
1721 [lock_map_acquire is defined])
1727 # 2.6.27.15-2 sles11
1729 # 2.6.27 sles11 remove the bi_hw_segments
1730 AC_DEFUN([LC_BI_HW_SEGMENTS],
1731 [AC_MSG_CHECKING([struct bio has a bi_hw_segments field])
1732 LB_LINUX_TRY_COMPILE([
1733 #include <linux/bio.h>
1736 io.bi_hw_segments = sizeof(io);
1738 AC_DEFINE(HAVE_BI_HW_SEGMENTS, 1,
1739 [struct bio has a bi_hw_segments field])
1740 AC_MSG_RESULT([yes])
1747 # 2.6.27 sles11 move the quotaio_v1{2}.h from include/linux to fs
1748 # 2.6.32 move the quotaio_v1{2}.h from fs to fs/quota
1749 AC_DEFUN([LC_HAVE_QUOTAIO_H],
1750 [LB_CHECK_FILE([$LINUX/include/linux/quotaio_v2.h],[
1751 AC_DEFINE(HAVE_QUOTAIO_H, 1,
1752 [kernel has include/linux/quotaio_v2.h])
1753 ],[LB_CHECK_FILE([$LINUX/fs/quotaio_v2.h],[
1754 AC_DEFINE(HAVE_FS_QUOTAIO_H, 1,
1755 [kernel has fs/quotaio_v1.h])
1756 ],[LB_CHECK_FILE([$LINUX/fs/quota/quotaio_v2.h],[
1757 AC_DEFINE(HAVE_FS_QUOTA_QUOTAIO_H, 1,
1758 [kernel has fs/quota/quotaio_v2.h])
1766 # sles10 sp2 need 5 parameter for vfs_symlink
1767 AC_DEFUN([LC_VFS_SYMLINK_5ARGS],
1768 [AC_MSG_CHECKING([vfs_symlink need 5 parameter])
1769 LB_LINUX_TRY_COMPILE([
1770 #include <linux/fs.h>
1772 struct inode *dir = NULL;
1773 struct dentry *dentry = NULL;
1774 struct vfsmount *mnt = NULL;
1775 const char * path = NULL;
1776 vfs_symlink(dir, dentry, mnt, path, 0);
1778 AC_DEFINE(HAVE_VFS_SYMLINK_5ARGS, 1,
1779 [vfs_symlink need 5 parameteres])
1780 AC_MSG_RESULT([yes])
1786 # 2.6.27 sles11 has sb_any_quota_active
1787 AC_DEFUN([LC_SB_ANY_QUOTA_ACTIVE],
1788 [AC_MSG_CHECKING([Kernel has sb_any_quota_active])
1789 LB_LINUX_TRY_COMPILE([
1790 #include <linux/quotaops.h>
1792 sb_any_quota_active(NULL);
1794 AC_DEFINE(HAVE_SB_ANY_QUOTA_ACTIVE, 1,
1795 [Kernel has a sb_any_quota_active])
1796 AC_MSG_RESULT([yes])
1802 # 2.6.27 sles11 has sb_has_quota_active
1803 AC_DEFUN([LC_SB_HAS_QUOTA_ACTIVE],
1804 [AC_MSG_CHECKING([Kernel has sb_has_quota_active])
1805 LB_LINUX_TRY_COMPILE([
1806 #include <linux/quotaops.h>
1808 sb_has_quota_active(NULL, 0);
1810 AC_DEFINE(HAVE_SB_HAS_QUOTA_ACTIVE, 1,
1811 [Kernel has a sb_has_quota_active])
1812 AC_MSG_RESULT([yes])
1818 # 2.6.27 exported add_to_page_cache_lru.
1819 AC_DEFUN([LC_EXPORT_ADD_TO_PAGE_CACHE_LRU],
1820 [LB_CHECK_SYMBOL_EXPORT([add_to_page_cache_lru],
1822 AC_DEFINE(HAVE_ADD_TO_PAGE_CACHE_LRU, 1,
1823 [add_to_page_cache_lru functions are present])
1829 # 2.6.29 introduce sb_any_quota_loaded.
1831 AC_DEFUN([LC_SB_ANY_QUOTA_LOADED],
1832 [AC_MSG_CHECKING([Kernel has sb_any_quota_loaded])
1833 LB_LINUX_TRY_COMPILE([
1834 #include <linux/quotaops.h>
1836 sb_any_quota_loaded(NULL);
1838 AC_DEFINE(HAVE_SB_ANY_QUOTA_LOADED, 1,
1839 [Kernel has a sb_any_quota_loaded])
1840 AC_MSG_RESULT([yes])
1846 # 2.6.30 x86 node_to_cpumask has been removed. must use cpumask_of_node
1847 AC_DEFUN([LC_EXPORT_CPUMASK_OF_NODE],
1848 [LB_CHECK_SYMBOL_EXPORT([node_to_cpumask_map],
1849 [arch/$LINUX_ARCH/mm/numa.c],
1850 [AC_DEFINE(HAVE_CPUMASK_OF_NODE, 1,
1851 [node_to_cpumask_map is exported by
1852 the kernel])]) # x86_64
1855 # 2.6.31 replaces blk_queue_hardsect_size by blk_queue_logical_block_size function
1856 AC_DEFUN([LC_BLK_QUEUE_LOG_BLK_SIZE],
1857 [AC_MSG_CHECKING([if blk_queue_logical_block_size is defined])
1858 LB_LINUX_TRY_COMPILE([
1859 #include <linux/blkdev.h>
1861 blk_queue_logical_block_size(NULL, 0);
1864 AC_DEFINE(HAVE_BLK_QUEUE_LOG_BLK_SIZE, 1,
1865 [blk_queue_logical_block_size is defined])
1873 # 2.6.32 changes cache_detail's member cache_request to cache_upcall
1874 # in kernel commit bc74b4f5e63a09fb78e245794a0de1e5a2716bbe
1875 AC_DEFUN([LC_CACHE_UPCALL],
1876 [AC_MSG_CHECKING([if cache_detail has cache_upcall field])
1877 LB_LINUX_TRY_COMPILE([
1878 #include <linux/sunrpc/cache.h>
1880 struct cache_detail cd;
1881 cd.cache_upcall = NULL;
1884 AC_DEFINE(HAVE_CACHE_UPCALL, 1,
1885 [cache_detail has cache_upcall field])
1891 # 2.6.32 add a limits member in struct request_queue.
1892 AC_DEFUN([LC_REQUEST_QUEUE_LIMITS],
1893 [AC_MSG_CHECKING([if request_queue has a limits field])
1894 LB_LINUX_TRY_COMPILE([
1895 #include <linux/blkdev.h>
1897 struct request_queue rq;
1898 rq.limits.io_min = 0;
1901 AC_DEFINE(HAVE_REQUEST_QUEUE_LIMITS, 1,
1902 [request_queue has a limits field])
1908 # 2.6.32 has bdi_register() functions.
1909 AC_DEFUN([LC_EXPORT_BDI_REGISTER],
1910 [LB_CHECK_SYMBOL_EXPORT([bdi_register],
1911 [mm/backing-dev.c],[
1912 AC_DEFINE(HAVE_BDI_REGISTER, 1,
1913 [bdi_register function is present])
1918 # 2.6.32 add s_bdi for super block
1919 AC_DEFUN([LC_SB_BDI],
1920 [AC_MSG_CHECKING([if super_block has s_bdi field])
1921 LB_LINUX_TRY_COMPILE([
1922 #include <linux/fs.h>
1924 struct super_block sb;
1928 AC_DEFINE(HAVE_SB_BDI, 1,
1929 [super_block has s_bdi field])
1935 # 2.6.27.15-2 SuSE 11 sp0 kernels lack the name field for BDI
1936 AC_DEFUN([LC_BDI_NAME],
1937 [AC_MSG_CHECKING([if backing_device_info has name field])
1938 LB_LINUX_TRY_COMPILE([
1939 #include <linux/blkkdev.h>
1941 struct backing_dev_info bdi;
1945 AC_DEFINE(HAVE_BDI_NAME, 1,
1946 [backing_device_info has name field])
1952 # 2.6.32 removes blk_queue_max_sectors and add blk_queue_max_hw_sectors
1953 # check blk_queue_max_sectors and use it until disappear.
1954 AC_DEFUN([LC_BLK_QUEUE_MAX_SECTORS],
1955 [AC_MSG_CHECKING([if blk_queue_max_sectors is defined])
1956 LB_LINUX_TRY_COMPILE([
1957 #include <linux/blkdev.h>
1959 blk_queue_max_sectors(NULL, 0);
1962 AC_DEFINE(HAVE_BLK_QUEUE_MAX_SECTORS, 1,
1963 [blk_queue_max_sectors is defined])
1969 # 2.6.32 replaces 2 functions blk_queue_max_phys_segments and blk_queue_max_hw_segments by blk_queue_max_segments
1970 AC_DEFUN([LC_BLK_QUEUE_MAX_SEGMENTS],
1971 [AC_MSG_CHECKING([if blk_queue_max_segments is defined])
1972 LB_LINUX_TRY_COMPILE([
1973 #include <linux/blkdev.h>
1975 blk_queue_max_segments(NULL, 0);
1978 AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
1979 [blk_queue_max_segments is defined])
1988 # Check if kernel has been patched for 64-bit quota limits support.
1989 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
1990 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
1991 # that in the absence of quotaio_v1.h in the kernel headers.
1993 AC_DEFUN([LC_QUOTA64],[
1994 AC_MSG_CHECKING([if kernel has 64-bit quota limits support])
1995 tmp_flags="$EXTRA_KCFLAGS"
1996 EXTRA_KCFLAGS="-I$LINUX/fs"
1997 LB_LINUX_TRY_COMPILE([
1998 #include <linux/kernel.h>
1999 #include <linux/fs.h>
2000 #ifdef HAVE_QUOTAIO_H
2001 # include <linux/quotaio_v2.h>
2002 int versions[] = V2_INITQVERSIONS_R1;
2003 struct v2_disk_dqblk_r1 dqblk_r1;
2004 #elif defined(HAVE_FS_QUOTA_QUOTAIO_H)
2005 # include <quota/quotaio_v2.h>
2006 struct v2r1_disk_dqblk dqblk_r1;
2007 #elif defined(HAVE_FS_QUOTAIO_H)
2008 # include <quotaio_v2.h>
2009 struct v2r1_disk_dqblk dqblk_r1;
2011 #include <linux/quota.h>
2012 int ver = QFMT_VFS_V1;
2015 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
2016 AC_MSG_RESULT([yes])
2018 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
2019 AC_MSG_ERROR([You have got no 64-bit kernel quota support.])
2023 EXTRA_KCFLAGS=$tmp_flags
2026 # 2.6.32 set_cpus_allowed is no more defined if CONFIG_CPUMASK_OFFSTACK=yes
2027 AC_DEFUN([LC_SET_CPUS_ALLOWED],
2028 [AC_MSG_CHECKING([if kernel defines set_cpus_allowed])
2029 LB_LINUX_TRY_COMPILE(
2030 [#include <linux/sched.h>],
2031 [struct task_struct *p = NULL;
2032 cpumask_t mask = { { 0 } };
2033 (void) set_cpus_allowed(p, mask);],
2034 [AC_MSG_RESULT([yes])
2035 AC_DEFINE(HAVE_SET_CPUS_ALLOWED, 1,
2036 [set_cpus_allowed is exported by the kernel])],
2037 [AC_MSG_RESULT([no])] )])
2041 # starting from 2.6.28 kernel replaces d_alloc_anon() with
2042 # d_obtain_alias() for getting anonymous dentries
2044 AC_DEFUN([LC_D_OBTAIN_ALIAS],
2045 [AC_MSG_CHECKING([d_obtain_alias exist in kernel])
2046 LB_LINUX_TRY_COMPILE([
2047 #include <linux/dcache.h>
2049 d_obtain_alias(NULL);
2051 AC_DEFINE(HAVE_D_OBTAIN_ALIAS, 1,
2052 [d_obtain_alias exist in kernel])
2053 AC_MSG_RESULT([yes])
2060 # 2.6.36 fs_struct.lock use spinlock instead of rwlock.
2062 AC_DEFUN([LC_FS_STRUCT_RWLOCK],
2063 [AC_MSG_CHECKING([if fs_struct.lock use rwlock])
2064 LB_LINUX_TRY_COMPILE([
2065 #include <asm/atomic.h>
2066 #include <linux/spinlock.h>
2067 #include <linux/fs_struct.h>
2069 ((struct fs_struct *)0)->lock = (rwlock_t){ 0 };
2071 AC_DEFINE(HAVE_FS_STRUCT_RWLOCK, 1,
2072 [fs_struct.lock use rwlock])
2073 AC_MSG_RESULT([yes])
2080 # 2.6.36 super_operations add evict_inode method. it hybird of
2081 # delete_inode & clear_inode.
2083 AC_DEFUN([LC_SBOPS_EVICT_INODE],
2084 [AC_MSG_CHECKING([if super_operations.evict_inode exist])
2085 LB_LINUX_TRY_COMPILE([
2086 #include <linux/fs.h>
2088 ((struct super_operations *)0)->evict_inode(NULL);
2090 AC_DEFINE(HAVE_SBOPS_EVICT_INODE, 1,
2091 [super_operations.evict_inode() is exist in kernel])
2092 AC_MSG_RESULT([yes])
2099 # 2.6.35 file_operations.fsync taken 2 arguments.
2101 AC_DEFUN([LC_FILE_FSYNC],
2102 [AC_MSG_CHECKING([if file_operations.fsync taken 2 arguments])
2103 LB_LINUX_TRY_COMPILE([
2104 #include <linux/fs.h>
2106 ((struct file_operations *)0)->fsync(NULL, 0);
2108 AC_DEFINE(HAVE_FILE_FSYNC_2ARGS, 1,
2109 [file_operations.fsync taken 2 arguments])
2110 AC_MSG_RESULT([yes])
2117 # 2.6.38 export blkdev_get_by_dev
2119 AC_DEFUN([LC_BLKDEV_GET_BY_DEV],
2120 [LB_CHECK_SYMBOL_EXPORT([blkdev_get_by_dev],
2122 AC_DEFINE(HAVE_BLKDEV_GET_BY_DEV, 1,
2123 [blkdev_get_by_dev is exported by the kernel])
2129 # 2.6.38 vfsmount.mnt_count doesn't use atomic_t
2131 AC_DEFUN([LC_ATOMIC_MNT_COUNT],
2132 [AC_MSG_CHECKING([if vfsmount.mnt_count is atomic_t])
2133 LB_LINUX_TRY_COMPILE([
2134 #include <asm/atomic.h>
2135 #include <linux/fs.h>
2136 #include <linux/mount.h>
2138 ((struct vfsmount *)0)->mnt_count = ((atomic_t) { 0 });
2140 AC_DEFINE(HAVE_ATOMIC_MNT_COUNT, 1,
2141 [vfsmount.mnt_count is atomic_t])
2142 AC_MSG_RESULT([yes])
2149 # 2.6.38 use path as 4th parameter in quota_on.
2151 AC_DEFUN([LC_QUOTA_ON_USE_PATH],
2152 [AC_MSG_CHECKING([quota_on use path as parameter])
2153 tmp_flags="$EXTRA_KCFLAGS"
2154 EXTRA_KCFLAGS="-Werror"
2155 LB_LINUX_TRY_COMPILE([
2156 #include <linux/fs.h>
2157 #include <linux/quota.h>
2159 ((struct quotactl_ops *)0)->quota_on(NULL, 0, 0, ((struct path*)0));
2161 AC_DEFINE(HAVE_QUOTA_ON_USE_PATH, 1,
2162 [quota_on use path as 4th paramter])
2163 AC_MSG_RESULT([yes])
2167 EXTRA_KCFLAGS="$tmp_flags"
2171 # 2.6.39 remove unplug_fn from request_queue.
2173 AC_DEFUN([LC_REQUEST_QUEUE_UNPLUG_FN],
2174 [AC_MSG_CHECKING([if request_queue has unplug_fn field])
2175 LB_LINUX_TRY_COMPILE([
2176 #include <linux/blkdev.h>
2178 struct request_queue rq;
2179 memset(rq.unplug_fn, 0, sizeof(rq.unplug_fn));
2181 AC_DEFINE(HAVE_REQUEST_QUEUE_UNPLUG_FN, 1,
2182 [request_queue has unplug_fn field])
2183 AC_MSG_RESULT([yes])
2190 # 2.6.38 generic_permission taken 4 paremater.
2191 # in fact, it means rcu-walk aware permission bring.
2193 AC_DEFUN([LC_GENERIC_PERMISSION],
2194 [AC_MSG_CHECKING([if generic_permission take 4 arguments])
2195 LB_LINUX_TRY_COMPILE([
2196 #include <linux/fs.h>
2198 generic_permission(NULL, 0, 0, NULL);
2200 AC_DEFINE(HAVE_GENERIC_PERMISSION_4ARGS, 1,
2201 [generic_permission taken 4 arguments])
2202 AC_MSG_RESULT([yes])
2209 # 2.6.38 export simple_setattr
2211 AC_DEFUN([LC_EXPORT_SIMPLE_SETATTR],
2212 [LB_CHECK_SYMBOL_EXPORT([simple_setattr],
2214 AC_DEFINE(HAVE_SIMPLE_SETATTR, 1,
2215 [simple_setattr is exported by the kernel])
2223 # Lustre linux kernel checks
2225 AC_DEFUN([LC_PROG_LINUX],
2226 [LC_LUSTRE_VERSION_H
2229 LC_CONFIG_LIBLUSTRE_RECOVERY
2230 LC_CONFIG_HEALTH_CHECK_WRITE
2231 LC_CONFIG_LRU_RESIZE
2233 LC_LLITE_LLOOP_MODULE
2236 LC_EXPORT_TRUNCATE_COMPLETE
2237 LC_EXPORT_TRUNCATE_RANGE
2238 LC_EXPORT_D_REHASH_COND
2239 LC_EXPORT___D_REHASH
2240 LC_EXPORT_NODE_TO_CPUMASK
2242 LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
2250 LC_STRUCT_INTENT_FILE
2255 LC_FUNC_HAVE_CAN_SLEEP_ARG
2258 LC_COOKIE_FOLLOW_LINK
2269 LC_EXPORT_SYNCHRONIZE_RCU
2275 LC_SECURITY_PLUG # for SLES10 SP2
2283 LC_STATFS_DENTRY_PARAM
2285 LC_INVALIDATEPAGE_RETURN_INT
2286 LC_UMOUNTBEGIN_HAS_VFSMOUNT
2288 LC_EXPORT_FILEMAP_FDATAWRITE_RANGE
2290 if test x$enable_server = xyes ; then
2291 LC_EXPORT_INVALIDATE_MAPPING_PAGES
2294 #2.6.18 + RHEL5 (fc6)
2305 LC_CANCEL_DIRTY_PAGE
2307 # raid5-zerocopy patch
2311 LC_INVALIDATE_BDEV_2ARG
2312 LC_ASYNC_BLOCK_CIPHER
2314 LC_STRUCT_BLKCIPHER_DESC
2315 LC_FS_RENAME_DOES_D_MOVE
2318 LC_UNREGISTER_BLKDEV_RETURN_INT
2319 LC_KERNEL_SPLICE_READ
2324 LC_EXPORTFS_DECODE_FH
2334 LC_MAPPING_CAP_WRITEBACK_DIRTY
2337 LC_FS_STRUCT_USE_PATH
2340 LC_INODE_PERMISION_2ARGS
2343 LC_READ_INODE_IN_SBOPS
2344 LC_EXPORT_INODE_PERMISSION
2350 # 2.6.27.15-2 sles11
2353 LC_VFS_SYMLINK_5ARGS
2355 LC_SB_ANY_QUOTA_ACTIVE
2356 LC_SB_HAS_QUOTA_ACTIVE
2357 LC_EXPORT_ADD_TO_PAGE_CACHE_LRU
2360 LC_SB_ANY_QUOTA_LOADED
2363 LC_EXPORT_CPUMASK_OF_NODE
2366 LC_BLK_QUEUE_LOG_BLK_SIZE
2369 LC_REQUEST_QUEUE_LIMITS
2370 LC_EXPORT_BDI_REGISTER
2372 LC_BLK_QUEUE_MAX_SECTORS
2373 LC_BLK_QUEUE_MAX_SEGMENTS
2379 LC_EXPORT_SIMPLE_SETATTR
2383 LC_SBOPS_EVICT_INODE
2387 LC_BLKDEV_GET_BY_DEV
2388 LC_GENERIC_PERMISSION
2389 LC_QUOTA_ON_USE_PATH
2392 LC_REQUEST_QUEUE_UNPLUG_FN
2395 if test x$enable_server = xyes ; then
2396 AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
2397 LC_FUNC_DEV_SET_RDONLY
2404 # LC_CONFIG_CLIENT_SERVER
2406 # Build client/server sides of Lustre
2408 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
2409 [AC_MSG_CHECKING([whether to build Lustre server support])
2410 AC_ARG_ENABLE([server],
2411 AC_HELP_STRING([--disable-server],
2412 [disable Lustre server support]),
2413 [],[enable_server='yes'])
2414 AC_MSG_RESULT([$enable_server])
2416 AC_MSG_CHECKING([whether to build Lustre client support])
2417 AC_ARG_ENABLE([client],
2418 AC_HELP_STRING([--disable-client],
2419 [disable Lustre client support]),
2420 [],[enable_client='yes'])
2421 AC_MSG_RESULT([$enable_client])])
2424 # LC_CONFIG_LIBLUSTRE
2426 # whether to build liblustre
2428 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
2429 [AC_MSG_CHECKING([whether to build Lustre library])
2430 AC_ARG_ENABLE([liblustre],
2431 AC_HELP_STRING([--disable-liblustre],
2432 [disable building of Lustre library]),
2433 [],[enable_liblustre=$with_sysio])
2434 AC_MSG_RESULT([$enable_liblustre])
2435 # only build sysio if liblustre is built
2436 with_sysio="$enable_liblustre"
2438 AC_MSG_CHECKING([whether to build liblustre tests])
2439 AC_ARG_ENABLE([liblustre-tests],
2440 AC_HELP_STRING([--enable-liblustre-tests],
2441 [enable liblustre tests, if --disable-tests is used]),
2442 [],[enable_liblustre_tests=$enable_tests])
2443 if test x$enable_liblustre != xyes ; then
2444 enable_liblustre_tests='no'
2446 AC_MSG_RESULT([$enable_liblustre_tests])
2448 AC_MSG_CHECKING([whether to enable liblustre acl])
2449 AC_ARG_ENABLE([liblustre-acl],
2450 AC_HELP_STRING([--disable-liblustre-acl],
2451 [disable ACL support for liblustre]),
2452 [],[enable_liblustre_acl=yes])
2453 AC_MSG_RESULT([$enable_liblustre_acl])
2454 if test x$enable_liblustre_acl = xyes ; then
2455 AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
2458 # 2.6.29 change prepare/commit_write to write_begin/end
2459 AC_DEFUN([LC_WRITE_BEGIN_END],
2460 [AC_MSG_CHECKING([if kernel has .write_begin/end])
2461 LB_LINUX_TRY_COMPILE([
2462 #include <linux/fs.h>
2463 #include <linux/pagemap.h>
2464 #ifdef HAVE_LINUX_MMTYPES_H
2465 #include <linux/mm_types.h>
2468 struct address_space_operations aops;
2471 aops.write_begin = NULL;
2472 aops.write_end = NULL;
2473 page = grab_cache_page_write_begin(NULL, 0, 0);
2475 AC_MSG_RESULT([yes])
2476 AC_DEFINE(HAVE_KERNEL_WRITE_BEGIN_END, 1,
2477 [kernel has .write_begin/end])
2483 # 2.6.29 blkdev_put has 2 arguments
2484 AC_DEFUN([LC_BLKDEV_PUT_2ARGS],
2485 [AC_MSG_CHECKING([blkdev_put needs 2 parameters])
2486 LB_LINUX_TRY_COMPILE([
2487 #include <linux/fs.h>
2489 blkdev_put(NULL, 0);
2491 AC_DEFINE(HAVE_BLKDEV_PUT_2ARGS, 1,
2492 [blkdev_put needs 2 paramters])
2493 AC_MSG_RESULT([yes])
2499 # 2.6.29 dentry_open has 4 arguments
2500 AC_DEFUN([LC_DENTRY_OPEN_4ARGS],
2501 [AC_MSG_CHECKING([dentry_open needs 4 parameters])
2502 LB_LINUX_TRY_COMPILE([
2503 #include <linux/fs.h>
2505 dentry_open(NULL, NULL, 0, NULL);
2507 AC_DEFINE(HAVE_DENTRY_OPEN_4ARGS, 1,
2508 [dentry_open needs 4 paramters])
2509 AC_MSG_RESULT([yes])
2515 # 2.6.29 split file and anonymous page queues
2516 AC_DEFUN([LC_PAGEVEC_LRU_ADD_FILE],
2517 [AC_MSG_CHECKING([if kernel has .pagevec_lru_add_file])
2518 LB_LINUX_TRY_COMPILE([
2519 #include <linux/mm.h>
2520 #include <linux/pagevec.h>
2522 struct pagevec lru_pagevec;
2524 pagevec_init(&lru_pagevec, 0);
2525 pagevec_lru_add_file(&lru_pagevec);
2527 AC_MSG_RESULT([yes])
2528 AC_DEFINE(HAVE_PAGEVEC_LRU_ADD_FILE, 1,
2529 [kernel has .pagevec_lru_add_file])
2538 AC_ARG_ENABLE(mpitests,
2539 AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
2540 [include mpi tests]),
2551 MPICC_WRAPPER=$enableval
2561 if test x$enable_mpitests != xno; then
2562 AC_MSG_CHECKING([whether mpitests can be built])
2570 MPI_Initialized(&flag);
2573 AC_MSG_RESULT([yes])
2580 AC_SUBST(MPICC_WRAPPER)
2582 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
2583 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
2586 LC_CONFIG_LIBLUSTRE_RECOVERY
2592 # whether to enable quota support global control
2594 AC_DEFUN([LC_CONFIG_QUOTA],
2595 [AC_ARG_ENABLE([quota],
2596 AC_HELP_STRING([--enable-quota],
2597 [enable quota support]),
2598 [],[enable_quota='yes'])
2601 AC_DEFUN([LC_QUOTA],
2605 AC_CHECK_HEADER(sys/quota.h,
2606 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
2607 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
2613 # whether to enable split support
2615 AC_DEFUN([LC_CONFIG_SPLIT],
2616 [AC_MSG_CHECKING([whether to enable split support])
2617 AC_ARG_ENABLE([split],
2618 AC_HELP_STRING([--enable-split],
2619 [enable split support]),
2620 [],[enable_split='no'])
2621 AC_MSG_RESULT([$enable_split])
2622 if test x$enable_split != xno; then
2623 AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
2627 AC_DEFUN([LC_TASK_CLENV_TUX_INFO],
2628 [AC_MSG_CHECKING([tux_info])
2629 LB_LINUX_TRY_COMPILE([
2630 #include <linux/sched.h>
2632 struct task_struct task;
2635 AC_MSG_RESULT([yes])
2636 AC_DEFINE(LL_TASK_CL_ENV, tux_info, [have tux_info])
2637 have_task_clenv_store='yes'
2644 # LC_LLITE_LLOOP_MODULE
2645 # lloop_llite.ko does not currently work with page sizes
2648 AC_DEFUN([LC_LLITE_LLOOP_MODULE],
2649 [AC_MSG_CHECKING([whether to enable llite_lloop module])
2650 LB_LINUX_TRY_COMPILE([
2651 #include <asm/page.h>
2653 #if PAGE_SIZE >= 65536
2654 #error "PAGE_SIZE >= 65536"
2657 enable_llite_lloop_module='yes'
2658 AC_MSG_RESULT([yes])
2660 enable_llite_lloop_module='no'
2668 # other configure checks
2670 AC_DEFUN([LC_CONFIGURE],
2671 [LC_CONFIG_OBD_BUFFER_SIZE
2673 if test $target_cpu == "i686" -o $target_cpu == "x86_64"; then
2674 CFLAGS="$CFLAGS -Werror"
2677 # maximum MDS thread count
2680 # include/liblustre.h
2681 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
2683 # liblustre/llite_lib.h
2684 AC_CHECK_HEADERS([xtio.h file.h])
2687 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
2690 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
2691 AC_CHECK_FUNCS([inet_ntoa])
2693 # libsysio/src/readlink.c
2696 # lvfs/prng.c - depends on linux/types.h from liblustre/dir.c
2697 AC_CHECK_HEADERS([linux/random.h], [], [],
2698 [#ifdef HAVE_LINUX_TYPES_H
2699 # include <linux/types.h>
2704 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
2706 # check for -lz support
2710 [AC_CHECK_HEADERS([zlib.h],
2712 AC_DEFINE([HAVE_ADLER], 1,
2713 [support alder32 checksum type])],
2714 [AC_MSG_WARN([No zlib-devel package found,
2715 unable to use adler32 checksum])])],
2716 [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
2721 AC_ARG_ENABLE([mindf],
2722 AC_HELP_STRING([--enable-mindf],
2723 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
2725 if test "$enable_mindf" = "yes" ; then
2726 AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
2729 AC_ARG_ENABLE([fail_alloc],
2730 AC_HELP_STRING([--disable-fail-alloc],
2731 [disable randomly alloc failure]),
2732 [],[enable_fail_alloc=yes])
2733 AC_MSG_CHECKING([whether to randomly failing memory alloc])
2734 AC_MSG_RESULT([$enable_fail_alloc])
2735 if test x$enable_fail_alloc != xno ; then
2736 AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
2739 AC_ARG_ENABLE([invariants],
2740 AC_HELP_STRING([--enable-invariants],
2741 [enable invariant checking (cpu intensive)]),
2743 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
2744 AC_MSG_RESULT([$enable_invariants])
2745 if test x$enable_invariants = xyes ; then
2746 AC_DEFINE([INVARIANT_CHECK], 1, [enable invariant checking])
2749 AC_ARG_ENABLE([lu_ref],
2750 AC_HELP_STRING([--enable-lu_ref],
2751 [enable lu_ref reference tracking code]),
2753 AC_MSG_CHECKING([whether to track references with lu_ref])
2754 AC_MSG_RESULT([$enable_lu_ref])
2755 if test x$enable_lu_ref = xyes ; then
2756 AC_DEFINE([USE_LU_REF], 1, [enable lu_ref reference tracking code])
2759 AC_ARG_ENABLE([pgstate-track],
2760 AC_HELP_STRING([--enable-pgstate-track],
2761 [enable page state tracking]),
2762 [enable_pgstat_track='yes'],[])
2763 AC_MSG_CHECKING([whether to enable page state tracking])
2764 AC_MSG_RESULT([$enable_pgstat_track])
2765 if test x$enable_pgstat_track = xyes ; then
2766 AC_DEFINE([LUSTRE_PAGESTATE_TRACKING], 1,
2767 [enable page state tracking code])
2774 LC_DENTRY_OPEN_4ARGS
2775 LC_PAGEVEC_LRU_ADD_FILE
2782 # AM_CONDITIONALS for lustre
2784 AC_DEFUN([LC_CONDITIONALS],
2785 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
2786 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
2787 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
2788 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
2789 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
2790 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
2791 AM_CONDITIONAL(QUOTA, test x$enable_quota_module = xyes)
2792 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
2793 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
2794 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
2795 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
2796 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
2797 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
2798 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
2799 AM_CONDITIONAL(LLITE_LLOOP, test x$enable_llite_lloop_module = xyes)
2805 # files that should be generated with AC_OUTPUT
2807 AC_DEFUN([LC_CONFIG_FILES],
2811 lustre/autoconf/Makefile
2812 lustre/conf/Makefile
2813 lustre/contrib/Makefile
2815 lustre/include/Makefile
2816 lustre/include/lustre_ver.h
2817 lustre/include/linux/Makefile
2818 lustre/include/lustre/Makefile
2819 lustre/kernel_patches/targets/2.6-rhel6.target
2820 lustre/kernel_patches/targets/2.6-rhel5.target
2821 lustre/kernel_patches/targets/2.6-sles10.target
2822 lustre/kernel_patches/targets/2.6-sles11.target
2823 lustre/kernel_patches/targets/2.6-oel5.target
2824 lustre/kernel_patches/targets/2.6-fc11.target
2825 lustre/kernel_patches/targets/2.6-fc12.target
2826 lustre/ldlm/Makefile
2828 lustre/fid/autoMakefile
2829 lustre/liblustre/Makefile
2830 lustre/liblustre/tests/Makefile
2831 lustre/liblustre/tests/mpi/Makefile
2832 lustre/llite/Makefile
2833 lustre/llite/autoMakefile
2834 lustre/lclient/Makefile
2836 lustre/lov/autoMakefile
2837 lustre/lvfs/Makefile
2838 lustre/lvfs/autoMakefile
2840 lustre/mdc/autoMakefile
2842 lustre/lmv/autoMakefile
2844 lustre/mds/autoMakefile
2846 lustre/mdt/autoMakefile
2848 lustre/cmm/autoMakefile
2850 lustre/mdd/autoMakefile
2852 lustre/fld/autoMakefile
2853 lustre/obdclass/Makefile
2854 lustre/obdclass/autoMakefile
2855 lustre/obdclass/linux/Makefile
2856 lustre/obdecho/Makefile
2857 lustre/obdecho/autoMakefile
2858 lustre/obdfilter/Makefile
2859 lustre/obdfilter/autoMakefile
2861 lustre/osc/autoMakefile
2863 lustre/ost/autoMakefile
2864 lustre/osd-ldiskfs/Makefile
2865 lustre/osd-ldiskfs/autoMakefile
2867 lustre/mgc/autoMakefile
2869 lustre/mgs/autoMakefile
2870 lustre/ptlrpc/Makefile
2871 lustre/ptlrpc/autoMakefile
2872 lustre/ptlrpc/gss/Makefile
2873 lustre/ptlrpc/gss/autoMakefile
2874 lustre/quota/Makefile
2875 lustre/quota/autoMakefile
2876 lustre/scripts/Makefile
2877 lustre/tests/Makefile
2878 lustre/tests/mpi/Makefile
2879 lustre/utils/Makefile
2880 lustre/utils/gss/Makefile
2881 lustre/obdclass/darwin/Makefile