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 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE],
273 [LB_CHECK_SYMBOL_EXPORT([truncate_complete_page],
275 AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
276 [kernel export truncate_complete_page])
281 AC_DEFUN([LC_EXPORT_TRUNCATE_RANGE],
282 [LB_CHECK_SYMBOL_EXPORT([truncate_inode_pages_range],
284 AC_DEFINE(HAVE_TRUNCATE_RANGE, 1,
285 [kernel export truncate_inode_pages_range])
290 AC_DEFUN([LC_EXPORT_D_REHASH_COND],
291 [LB_CHECK_SYMBOL_EXPORT([d_rehash_cond],
293 AC_DEFINE(HAVE_D_REHASH_COND, 1,
294 [d_rehash_cond is exported by the kernel])
299 AC_DEFUN([LC_EXPORT___D_REHASH],
300 [LB_CHECK_SYMBOL_EXPORT([__d_rehash],
302 AC_DEFINE(HAVE___D_REHASH, 1,
303 [__d_rehash is exported by the kernel])
308 # The actual symbol exported varies among architectures, so we need
309 # to check many symbols (but only in the current architecture.) No
310 # matter what symbol is exported, the kernel #defines node_to_cpumask
311 # to the appropriate function and that's what we use.
312 AC_DEFUN([LC_EXPORT_NODE_TO_CPUMASK],
313 [LB_CHECK_SYMBOL_EXPORT([node_to_cpumask],
314 [arch/$LINUX_ARCH/mm/numa.c],
315 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
316 [node_to_cpumask is exported by
317 the kernel])]) # x86_64
318 LB_CHECK_SYMBOL_EXPORT([node_to_cpu_mask],
319 [arch/$LINUX_ARCH/kernel/smpboot.c],
320 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
321 [node_to_cpumask is exported by
322 the kernel])]) # ia64
323 LB_CHECK_SYMBOL_EXPORT([node_2_cpu_mask],
324 [arch/$LINUX_ARCH/kernel/smpboot.c],
325 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
326 [node_to_cpumask is exported by
327 the kernel])]) # i386
331 # LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
333 # Check for our patched grab_cache_page_nowait_gfp() function
334 # after 2.6.29 we can emulate this using add_to_page_cache_lru()
336 AC_DEFUN([LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP],
337 [LB_CHECK_SYMBOL_EXPORT([grab_cache_page_nowait_gfp],
339 AC_DEFINE(HAVE_GRAB_CACHE_PAGE_NOWAIT_GFP, 1,
340 [kernel exports grab_cache_page_nowait_gfp])
342 [LB_CHECK_SYMBOL_EXPORT([add_to_page_cache_lru],
344 AC_DEFINE(HAVE_ADD_TO_PAGE_CACHE_LRU, 1,
345 [kernel exports add_to_page_cache_lru])
354 # AIX does not have statfs.f_namelen
356 AC_DEFUN([LC_STRUCT_STATFS],
357 [AC_MSG_CHECKING([if struct statfs has a f_namelen field])
358 LB_LINUX_TRY_COMPILE([
359 #include <linux/vfs.h>
365 AC_DEFINE(HAVE_STATFS_NAMELEN, 1, [struct statfs has a namelen field])
372 # between 2.6.5 - 2.6.22 filemap_populate is exported in some kernels
374 AC_DEFUN([LC_FILEMAP_POPULATE],
375 [AC_MSG_CHECKING([for exported filemap_populate])
376 LB_LINUX_TRY_COMPILE([
377 #include <asm/page.h>
378 #include <linux/mm.h>
380 filemap_populate(NULL, 0, 0, __pgprot(0), 0, 0);
383 AC_DEFINE(HAVE_FILEMAP_POPULATE, 1, [Kernel exports filemap_populate])
392 AC_DEFUN([LC_D_ADD_UNIQUE],
393 [AC_MSG_CHECKING([for d_add_unique])
394 LB_LINUX_TRY_COMPILE([
395 #include <linux/dcache.h>
397 d_add_unique(NULL, NULL);
400 AC_DEFINE(HAVE_D_ADD_UNIQUE, 1, [Kernel has d_add_unique])
409 AC_DEFUN([LC_BIT_SPINLOCK_H],
410 [LB_CHECK_FILE([$LINUX/include/linux/bit_spinlock.h],[
411 AC_MSG_CHECKING([if bit_spinlock.h can be compiled])
412 LB_LINUX_TRY_COMPILE([
413 #include <asm/processor.h>
414 #include <linux/spinlock.h>
415 #include <linux/bit_spinlock.h>
418 AC_DEFINE(HAVE_BIT_SPINLOCK_H, 1, [Kernel has bit_spinlock.h])
427 # After 2.6.26 we no longer have xattr_acl.h
429 AC_DEFUN([LC_XATTR_ACL],
430 [LB_CHECK_FILE([$LINUX/include/linux/xattr_acl.h],[
431 AC_MSG_CHECKING([if xattr_acl.h can be compiled])
432 LB_LINUX_TRY_COMPILE([
433 #include <linux/xattr_acl.h>
436 AC_DEFINE(HAVE_XATTR_ACL, 1, [Kernel has xattr_acl])
445 # After 2.6.16 the xattr_acl API is removed, and posix_acl is used instead
447 AC_DEFUN([LC_POSIX_ACL_XATTR_H],
448 [LB_CHECK_FILE([$LINUX/include/linux/posix_acl_xattr.h],[
449 AC_MSG_CHECKING([if linux/posix_acl_xattr.h can be compiled])
450 LB_LINUX_TRY_COMPILE([
451 #include <linux/fs.h>
452 #include <linux/posix_acl_xattr.h>
455 AC_DEFINE(HAVE_LINUX_POSIX_ACL_XATTR_H, 1, [linux/posix_acl_xattr.h found])
466 AC_DEFUN([LC_CONST_ACL_SIZE],
467 [AC_MSG_CHECKING([calc acl size])
469 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"
472 #include <linux/autoconf.h>
473 #include <linux/types.h>
476 #define __LINUX_POSIX_ACL_H
478 # ifdef CONFIG_FS_POSIX_ACL
479 # ifdef HAVE_XATTR_ACL
480 # include <linux/xattr_acl.h>
482 # ifdef HAVE_LINUX_POSIX_ACL_XATTR_H
483 # include <linux/posix_acl_xattr.h>
487 #include <lustre_acl.h>
493 int size = mds_xattr_acl_size(LUSTRE_POSIX_ACL_MAX_ENTRIES);
494 FILE *f = fopen("acl.size","w+");
495 fprintf(f,"%d", size);
501 acl_size=`cat acl.size`
502 AC_MSG_RESULT([ACL size $acl_size])
503 AC_DEFINE_UNQUOTED(XATTR_ACL_SIZE, AS_TR_SH([$acl_size]), [size of xattr acl])
505 AC_ERROR([ACL size can't computed])
512 AC_DEFUN([LC_STRUCT_INTENT_FILE],
513 [AC_MSG_CHECKING([if struct open_intent has a file field])
514 LB_LINUX_TRY_COMPILE([
515 #include <linux/fs.h>
516 #include <linux/namei.h>
518 struct open_intent intent;
522 AC_DEFINE(HAVE_FILE_IN_STRUCT_INTENT, 1, [struct open_intent has a file field])
531 AC_DEFUN([LC_CAPA_CRYPTO],
532 [LB_LINUX_CONFIG_IM([CRYPTO],[],[
533 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])
535 LB_LINUX_CONFIG_IM([CRYPTO_HMAC],[],[
536 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])
538 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],[
539 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])
544 # LC_CONFIG_RMTCLIENT
547 dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
549 AC_DEFUN([LC_CONFIG_RMTCLIENT],
550 [LB_LINUX_CONFIG_IM([CRYPTO_AES],[],[
551 AC_MSG_WARN([Lustre remote client require that CONFIG_CRYPTO_AES is enabled in your kernel.])
556 # LC_CONFIG_GSS_KEYRING (default enabled, if gss is enabled)
558 AC_DEFUN([LC_CONFIG_GSS_KEYRING],
559 [AC_MSG_CHECKING([whether to enable gss keyring backend])
560 AC_ARG_ENABLE([gss_keyring],
561 [AC_HELP_STRING([--disable-gss-keyring],
562 [disable gss keyring backend])],
563 [],[enable_gss_keyring='yes'])
564 AC_MSG_RESULT([$enable_gss_keyring])
566 if test x$enable_gss_keyring != xno; then
567 LB_LINUX_CONFIG_IM([KEYS],[],
568 [AC_MSG_ERROR([GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.])])
570 AC_CHECK_LIB([keyutils], [keyctl_search], [],
571 [AC_MSG_ERROR([libkeyutils is not found, which is required by gss keyring backend])],)
573 AC_DEFINE([HAVE_GSS_KEYRING], [1],
574 [Define this if you enable gss keyring backend])
578 AC_DEFUN([LC_SUNRPC_CACHE],
579 [AC_MSG_CHECKING([if sunrpc struct cache_head uses kref])
580 LB_LINUX_TRY_COMPILE([
581 #include <linux/sunrpc/cache.h>
583 struct cache_head ch;
587 AC_DEFINE(HAVE_SUNRPC_CACHE_V2, 1, [sunrpc cache facility v2])
593 AC_DEFUN([LC_CONFIG_SUNRPC],
594 [LB_LINUX_CONFIG_IM([SUNRPC],[],
595 [AC_MSG_ERROR([kernel SUNRPC support is required by using GSS.])])
600 # LC_CONFIG_GSS (default disabled)
602 # Build gss and related tools of Lustre. Currently both kernel and user space
603 # parts are depend on linux platform.
605 AC_DEFUN([LC_CONFIG_GSS],
606 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
608 [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
609 [],[enable_gss='no'])
610 AC_MSG_RESULT([$enable_gss])
612 if test x$enable_gss == xyes; then
613 LC_CONFIG_GSS_KEYRING
616 AC_DEFINE([HAVE_GSS], [1], [Define this if you enable gss])
618 LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
619 [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
620 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
621 [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
622 LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
623 [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
624 LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
625 [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
627 AC_CHECK_LIB([gssapi], [gss_init_sec_context],
628 [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"],
629 [AC_CHECK_LIB([gssglue], [gss_init_sec_context],
630 [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue"],
631 [AC_MSG_ERROR([libgssapi or libgssglue is not found, which is required by GSS.])])],)
633 AC_SUBST(GSSAPI_LIBS)
640 # LC_FUNC_HAVE_CAN_SLEEP_ARG
642 # 2.6.5 kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()
644 AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG],
645 [AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
646 LB_LINUX_TRY_COMPILE([
647 #include <linux/fs.h>
651 struct file_lock *file_lock;
652 flock_lock_file_wait(file, file_lock, cansleep);
654 AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1,
655 [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
665 # rhel4.2 kernel has f_op->flock field
667 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
668 [AC_MSG_CHECKING([if struct file_operations has flock field])
669 LB_LINUX_TRY_COMPILE([
670 #include <linux/fs.h>
672 struct file_operations ll_file_operations_flock;
673 ll_file_operations_flock.flock = NULL;
675 AC_DEFINE(HAVE_F_OP_FLOCK, 1,
676 [struct file_operations has flock field])
683 AC_DEFUN([LC_QUOTA_READ],
684 [AC_MSG_CHECKING([if kernel supports quota_read])
685 LB_LINUX_TRY_COMPILE([
686 #include <linux/fs.h>
688 struct super_operations sp;
689 void *i = (void *)sp.quota_read;
692 AC_DEFINE(KERNEL_SUPPORTS_QUOTA_READ, 1, [quota_read found])
699 # LC_COOKIE_FOLLOW_LINK
701 # kernel 2.6.13+ ->follow_link returns a cookie
704 AC_DEFUN([LC_COOKIE_FOLLOW_LINK],
705 [AC_MSG_CHECKING([if inode_operations->follow_link returns a cookie])
706 LB_LINUX_TRY_COMPILE([
707 #include <linux/fs.h>
708 #include <linux/namei.h>
710 struct dentry dentry;
713 dentry.d_inode->i_op->put_link(&dentry, &nd, NULL);
715 AC_DEFINE(HAVE_COOKIE_FOLLOW_LINK, 1, [inode_operations->follow_link returns a cookie])
725 # kernels prior than 2.6.0(?) have no RCU supported; in kernel 2.6.5(SUSE),
726 # call_rcu takes three parameters.
728 AC_DEFUN([LC_FUNC_RCU],
729 [AC_MSG_CHECKING([if kernel have RCU supported])
730 LB_LINUX_TRY_COMPILE([
731 #include <linux/rcupdate.h>
733 AC_DEFINE(HAVE_RCU, 1, [have RCU defined])
736 AC_MSG_CHECKING([if call_rcu takes three parameters])
737 LB_LINUX_TRY_COMPILE([
738 #include <linux/rcupdate.h>
741 call_rcu(&rh, (void (*)(struct rcu_head *))1, NULL);
743 AC_DEFINE(HAVE_CALL_RCU_PARAM, 1, [call_rcu takes three parameters])
754 AC_DEFUN([LC_PERCPU_COUNTER],
755 [AC_MSG_CHECKING([if have struct percpu_counter defined])
756 LB_LINUX_TRY_COMPILE([
757 #include <linux/percpu_counter.h>
759 AC_DEFINE(HAVE_PERCPU_COUNTER, 1, [percpu_counter found])
762 AC_MSG_CHECKING([if percpu_counter_inc takes the 2nd argument])
763 LB_LINUX_TRY_COMPILE([
764 #include <linux/percpu_counter.h>
766 struct percpu_counter c;
767 percpu_counter_init(&c, 0);
769 AC_DEFINE(HAVE_PERCPU_2ND_ARG, 1, [percpu_counter_init has two
780 AC_DEFUN([LC_TASK_CLENV_STORE],
782 AC_MSG_CHECKING([if we can store cl_env in task_struct])
783 if test x$have_task_clenv_store != xyes ; then
784 LC_TASK_CLENV_TUX_INFO
790 AC_DEFUN([LC_S_TIME_GRAN],
791 [AC_MSG_CHECKING([if super block has s_time_gran member])
792 LB_LINUX_TRY_COMPILE([
793 #include <linux/fs.h>
795 struct super_block sb;
797 return sb.s_time_gran;
800 AC_DEFINE(HAVE_S_TIME_GRAN, 1, [super block has s_time_gran member])
806 AC_DEFUN([LC_SB_TIME_GRAN],
807 [AC_MSG_CHECKING([if kernel has old get_sb_time_gran])
808 LB_LINUX_TRY_COMPILE([
809 #include <linux/fs.h>
811 return get_sb_time_gran(NULL);
814 AC_DEFINE(HAVE_SB_TIME_GRAN, 1, [kernel has old get_sb_time_gran])
822 # ~2.6.12 merge patch from oracle to convert tree_lock from spinlock to rwlock
823 AC_DEFUN([LC_RW_TREE_LOCK],
824 [AC_MSG_CHECKING([if kernel has tree_lock as rwlock])
825 tmp_flags="$EXTRA_KCFLAGS"
826 EXTRA_KCFLAGS="-Werror"
827 LB_LINUX_TRY_COMPILE([
828 #include <linux/fs.h>
830 struct address_space a;
832 write_lock(&a.tree_lock);
835 AC_DEFINE(HAVE_RW_TREE_LOCK, 1, [kernel has tree_lock as rw_lock])
839 EXTRA_KCFLAGS="$tmp_flags"
842 # LC_EXPORT_SYNCHRONIZE_RCU
843 # after 2.6.12 synchronize_rcu is preferred over synchronize_kernel
844 AC_DEFUN([LC_EXPORT_SYNCHRONIZE_RCU],
845 [LB_CHECK_SYMBOL_EXPORT([synchronize_rcu],
846 [kernel/rcupdate.c],[
847 AC_DEFINE(HAVE_SYNCHRONIZE_RCU, 1,
848 [in 2.6.12 synchronize_rcu preferred over synchronize_kernel])
856 # after 2.6.15 inode have i_mutex intead of i_sem
857 AC_DEFUN([LC_INODE_I_MUTEX],
858 [AC_MSG_CHECKING([if inode has i_mutex ])
859 LB_LINUX_TRY_COMPILE([
860 #include <linux/mutex.h>
861 #include <linux/fs.h>
866 mutex_unlock(&i.i_mutex);
869 AC_DEFINE(HAVE_INODE_I_MUTEX, 1,
870 [after 2.6.15 inode have i_mutex intead of i_sem])
878 # LC_SECURITY_PLUG # for SLES10 SP2
879 # check security plug in sles10 sp2 kernel
880 AC_DEFUN([LC_SECURITY_PLUG],
881 [AC_MSG_CHECKING([If kernel has security plug support])
882 LB_LINUX_TRY_COMPILE([
883 #include <linux/fs.h>
885 struct dentry *dentry;
886 struct vfsmount *mnt;
889 notify_change(dentry, mnt, iattr);
892 AC_DEFINE(HAVE_SECURITY_PLUG, 1,
893 [SLES10 SP2 use extra parameter in vfs])
901 # inode have i_private field since 2.6.17
902 AC_DEFUN([LC_INODE_IPRIVATE],
903 [AC_MSG_CHECKING([if inode has a i_private field])
904 LB_LINUX_TRY_COMPILE([
905 #include <linux/fs.h>
911 AC_DEFINE(HAVE_INODE_IPRIVATE, 1,
912 [struct inode has i_private field])
919 # after 2.6.17 dquote use mutex instead if semaphore
920 AC_DEFUN([LC_DQUOTOFF_MUTEX],
921 [AC_MSG_CHECKING([use dqonoff_mutex])
922 LB_LINUX_TRY_COMPILE([
923 #include <linux/mutex.h>
924 #include <linux/fs.h>
925 #include <linux/quota.h>
927 struct quota_info dq;
929 mutex_unlock(&dq.dqonoff_mutex);
932 AC_DEFINE(HAVE_DQUOTOFF_MUTEX, 1,
933 [after 2.6.17 dquote use mutex instead if semaphore])
942 # 2.6.18 don't export nr_pagecahe
943 AC_DEFUN([LC_NR_PAGECACHE],
944 [AC_MSG_CHECKING([kernel export nr_pagecache])
945 LB_LINUX_TRY_COMPILE([
946 #include <linux/pagemap.h>
948 return atomic_read(&nr_pagecache);
951 AC_DEFINE(HAVE_NR_PAGECACHE, 1,
952 [is kernel export nr_pagecache])
959 # LC_STATFS_DENTRY_PARAM
960 # starting from 2.6.18 linux kernel uses dentry instead of
961 # super_block for first vfs_statfs argument
963 AC_DEFUN([LC_STATFS_DENTRY_PARAM],
964 [AC_MSG_CHECKING([first vfs_statfs parameter is dentry])
965 LB_LINUX_TRY_COMPILE([
966 #include <linux/fs.h>
968 int vfs_statfs(struct dentry *, struct kstatfs *);
970 AC_DEFINE(HAVE_STATFS_DENTRY_PARAM, 1,
971 [first parameter of vfs_statfs is dentry])
980 # starting from 2.6.18 kernel don't export do_kern_mount
981 # and want to use vfs_kern_mount instead.
983 AC_DEFUN([LC_VFS_KERN_MOUNT],
984 [AC_MSG_CHECKING([vfs_kern_mount exist in kernel])
985 LB_LINUX_TRY_COMPILE([
986 #include <linux/mount.h>
988 vfs_kern_mount(NULL, 0, NULL, NULL);
990 AC_DEFINE(HAVE_VFS_KERN_MOUNT, 1,
991 [vfs_kern_mount exist in kernel])
999 # LC_INVALIDATEPAGE_RETURN_INT
1000 # 2.6.17 changes return type for invalidatepage to 'void' from 'int'
1002 AC_DEFUN([LC_INVALIDATEPAGE_RETURN_INT],
1003 [AC_MSG_CHECKING([invalidatepage has return int])
1004 LB_LINUX_TRY_COMPILE([
1005 #include <linux/buffer_head.h>
1007 int rc = block_invalidatepage(NULL, 0);
1010 AC_DEFINE(HAVE_INVALIDATEPAGE_RETURN_INT, 1,
1011 [Define if return type of invalidatepage should be int])
1017 # LC_UMOUNTBEGIN_HAS_VFSMOUNT
1018 # after 2.6.18 umount_begin has different parameters
1019 AC_DEFUN([LC_UMOUNTBEGIN_HAS_VFSMOUNT],
1020 [AC_MSG_CHECKING([if umount_begin needs vfsmount parameter instead of super_block])
1021 tmp_flags="$EXTRA_KCFLAGS"
1022 EXTRA_KCFLAGS="-Werror"
1023 LB_LINUX_TRY_COMPILE([
1024 #include <linux/fs.h>
1027 static void cfg_umount_begin (struct vfsmount *v, int flags)
1032 static struct super_operations cfg_super_operations = {
1033 .umount_begin = cfg_umount_begin,
1036 cfg_super_operations.umount_begin(NULL,0);
1039 AC_DEFINE(HAVE_UMOUNTBEGIN_VFSMOUNT, 1,
1040 [Define umount_begin need second argument])
1044 EXTRA_KCFLAGS="$tmp_flags"
1048 # after 2.6.18 seq_file has lock intead of sem
1049 AC_DEFUN([LC_SEQ_LOCK],
1050 [AC_MSG_CHECKING([if struct seq_file has lock field])
1051 LB_LINUX_TRY_COMPILE([
1052 #include <linux/seq_file.h>
1054 struct seq_file seq;
1056 mutex_unlock(&seq.lock);
1059 AC_DEFINE(HAVE_SEQ_LOCK, 1,
1060 [after 2.6.18 seq_file has lock intead of sem])
1067 # LC_EXPORT_FILEMAP_FDATAWRITE_RANGE
1069 # No standard kernels export this
1071 AC_DEFUN([LC_EXPORT_FILEMAP_FDATAWRITE_RANGE],
1072 [LB_CHECK_SYMBOL_EXPORT([filemap_fdatawrite_range],
1074 AC_DEFINE(HAVE_FILEMAP_FDATAWRITE_RANGE, 1,
1075 [filemap_fdatawrite_range is exported by the kernel])
1081 # starting from 2.6.18 the file_operations .flush
1082 # method has a new "fl_owner_t id" parameter
1084 AC_DEFUN([LC_FLUSH_OWNER_ID],
1085 [AC_MSG_CHECKING([if file_operations .flush has an fl_owner_t id])
1086 LB_LINUX_TRY_COMPILE([
1087 #include <linux/fs.h>
1089 struct file_operations *fops = NULL;
1093 i = fops->flush(NULL, id);
1095 AC_DEFINE(HAVE_FLUSH_OWNER_ID, 1,
1096 [file_operations .flush method has an fl_owner_t id])
1097 AC_MSG_RESULT([yes])
1104 # LC_EXPORT_INVALIDATE_MAPPING_PAGES
1106 # SLES9, RHEL4, RHEL5, vanilla 2.6.24 export invalidate_mapping_pages() but
1107 # SLES10 2.6.16 does not, for some reason. For filter cache invalidation.
1109 AC_DEFUN([LC_EXPORT_INVALIDATE_MAPPING_PAGES],
1110 [LB_CHECK_SYMBOL_EXPORT([invalidate_mapping_pages], [mm/truncate.c], [
1111 AC_DEFINE(HAVE_INVALIDATE_MAPPING_PAGES, 1,
1112 [exported invalidate_mapping_pages])],
1113 [LB_CHECK_SYMBOL_EXPORT([invalidate_inode_pages], [mm/truncate.c], [
1114 AC_DEFINE(HAVE_INVALIDATE_INODE_PAGES, 1,
1115 [exported invalidate_inode_pages])], [
1116 AC_MSG_ERROR([no way to invalidate pages])
1121 #2.6.18 + RHEL5 (fc6)
1123 # RHEL5 in FS-cache patch rename PG_checked flag into PG_fs_misc
1124 AC_DEFUN([LC_PG_FS_MISC],
1125 [AC_MSG_CHECKING([kernel has PG_fs_misc])
1126 LB_LINUX_TRY_COMPILE([
1127 #include <linux/mm.h>
1128 #include <linux/page-flags.h>
1131 #error PG_fs_misc not defined in kernel
1135 AC_DEFINE(HAVE_PG_FS_MISC, 1,
1136 [is kernel have PG_fs_misc])
1142 # RHEL5 PageChecked and SetPageChecked defined
1143 AC_DEFUN([LC_PAGE_CHECKED],
1144 [AC_MSG_CHECKING([kernel has PageChecked and SetPageChecked])
1145 LB_LINUX_TRY_COMPILE([
1146 #include <linux/autoconf.h>
1147 #ifdef HAVE_LINUX_MMTYPES_H
1148 #include <linux/mm_types.h>
1150 #include <linux/page-flags.h>
1154 /* before 2.6.26 this define*/
1156 /* 2.6.26 use function instead of define for it */
1162 AC_DEFINE(HAVE_PAGE_CHECKED, 1,
1163 [does kernel have PageChecked and SetPageChecked])
1172 # If we have fiemap.h
1173 # after 2.6.27 use fiemap.h in include/linux
1175 AC_DEFUN([LC_LINUX_FIEMAP_H],
1176 [LB_CHECK_FILE([$LINUX/include/linux/fiemap.h],[
1177 AC_MSG_CHECKING([if fiemap.h can be compiled])
1178 LB_LINUX_TRY_COMPILE([
1179 #include <linux/types.h>
1180 #include <linux/fiemap.h>
1182 AC_MSG_RESULT([yes])
1183 AC_DEFINE(HAVE_LINUX_FIEMAP_H, 1, [Kernel has fiemap.h])
1193 # 2.6.19 API changes
1194 # inode don't have i_blksize field
1195 AC_DEFUN([LC_INODE_BLKSIZE],
1196 [AC_MSG_CHECKING([inode has i_blksize field])
1197 LB_LINUX_TRY_COMPILE([
1198 #include <linux/fs.h>
1204 AC_DEFINE(HAVE_INODE_BLKSIZE, 1,
1205 [struct inode has i_blksize field])
1211 # LC_VFS_READDIR_U64_INO
1212 # 2.6.19 use u64 for inode number instead of inode_t
1213 AC_DEFUN([LC_VFS_READDIR_U64_INO],
1214 [AC_MSG_CHECKING([check vfs_readdir need 64bit inode number])
1215 tmp_flags="$EXTRA_KCFLAGS"
1216 EXTRA_KCFLAGS="-Werror"
1217 LB_LINUX_TRY_COMPILE([
1218 #include <linux/fs.h>
1219 int fillonedir(void * __buf, const char * name, int namlen, loff_t offset,
1220 u64 ino, unsigned int d_type)
1227 filter = fillonedir;
1231 AC_DEFINE(HAVE_VFS_READDIR_U64_INO, 1,
1232 [if vfs_readdir need 64bit inode number])
1236 EXTRA_KCFLAGS="$tmp_flags"
1240 # 2.6.19 replaced writev with aio_write
1241 AC_DEFUN([LC_FILE_WRITEV],
1242 [AC_MSG_CHECKING([writev in fops])
1243 LB_LINUX_TRY_COMPILE([
1244 #include <linux/fs.h>
1246 struct file_operations *fops = NULL;
1247 fops->writev = NULL;
1250 AC_DEFINE(HAVE_FILE_WRITEV, 1,
1258 # 2.6.19 replaced readv with aio_read
1259 AC_DEFUN([LC_FILE_READV],
1260 [AC_MSG_CHECKING([readv in fops])
1261 LB_LINUX_TRY_COMPILE([
1262 #include <linux/fs.h>
1264 struct file_operations *fops = NULL;
1268 AC_DEFINE(HAVE_FILE_READV, 1,
1277 # LC_CANCEL_DIRTY_PAGE
1278 # 2.6.20 introduced cancel_dirty_page instead of clear_page_dirty.
1279 AC_DEFUN([LC_CANCEL_DIRTY_PAGE],
1280 [AC_MSG_CHECKING([kernel has cancel_dirty_page])
1281 # the implementation of cancel_dirty_page in OFED 1.4.1's SLES10 SP2
1282 # backport is broken, so ignore it
1283 if test -f $OFED_BACKPORT_PATH/linux/mm.h &&
1284 test "$(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
1287 LB_LINUX_TRY_COMPILE([
1288 #include <linux/mm.h>
1289 #include <linux/page-flags.h>
1291 cancel_dirty_page(NULL, 0);
1294 AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
1295 [kernel has cancel_dirty_page instead of clear_page_dirty])
1302 # raid5-zerocopy patch
1307 # In order to support raid5 zerocopy patch, we have to patch the kernel to make
1308 # it support constant page, which means the page won't be modified during the
1311 AC_DEFUN([LC_PAGE_CONSTANT],
1312 [AC_MSG_CHECKING([if kernel have PageConstant defined])
1313 LB_LINUX_TRY_COMPILE([
1314 #include <linux/mm.h>
1315 #include <linux/page-flags.h>
1318 #error "Have no raid5 zcopy patch"
1322 AC_DEFINE(HAVE_PAGE_CONSTANT, 1, [kernel have PageConstant supported])
1330 # 2.6.22 lost second parameter for invalidate_bdev
1331 AC_DEFUN([LC_INVALIDATE_BDEV_2ARG],
1332 [AC_MSG_CHECKING([if invalidate_bdev has second argument])
1333 LB_LINUX_TRY_COMPILE([
1334 #include <linux/buffer_head.h>
1336 invalidate_bdev(NULL,0);
1338 AC_MSG_RESULT([yes])
1339 AC_DEFINE(HAVE_INVALIDATE_BDEV_2ARG, 1,
1340 [invalidate_bdev has second argument])
1347 # check for crypto API
1349 AC_DEFUN([LC_ASYNC_BLOCK_CIPHER],
1350 [AC_MSG_CHECKING([if kernel has block cipher support])
1351 LB_LINUX_TRY_COMPILE([
1352 #include <linux/err.h>
1353 #include <linux/crypto.h>
1355 struct crypto_blkcipher *tfm;
1356 tfm = crypto_alloc_blkcipher("aes", 0, 0 );
1358 AC_MSG_RESULT([yes])
1359 AC_DEFINE(HAVE_ASYNC_BLOCK_CIPHER, 1, [kernel has block cipher support])
1366 # check for struct hash_desc
1368 AC_DEFUN([LC_STRUCT_HASH_DESC],
1369 [AC_MSG_CHECKING([if kernel has struct hash_desc])
1370 LB_LINUX_TRY_COMPILE([
1371 #include <linux/err.h>
1372 #include <linux/crypto.h>
1374 struct hash_desc foo;
1376 AC_MSG_RESULT([yes])
1377 AC_DEFINE(HAVE_STRUCT_HASH_DESC, 1, [kernel has struct hash_desc])
1384 # check for struct blkcipher_desc
1386 AC_DEFUN([LC_STRUCT_BLKCIPHER_DESC],
1387 [AC_MSG_CHECKING([if kernel has struct blkcipher_desc])
1388 LB_LINUX_TRY_COMPILE([
1389 #include <linux/err.h>
1390 #include <linux/crypto.h>
1392 struct blkcipher_desc foo;
1394 AC_MSG_RESULT([yes])
1395 AC_DEFINE(HAVE_STRUCT_BLKCIPHER_DESC, 1, [kernel has struct blkcipher_desc])
1402 # 2.6.19 check for FS_RENAME_DOES_D_MOVE flag
1404 AC_DEFUN([LC_FS_RENAME_DOES_D_MOVE],
1405 [AC_MSG_CHECKING([if kernel has FS_RENAME_DOES_D_MOVE flag])
1406 LB_LINUX_TRY_COMPILE([
1407 #include <linux/fs.h>
1409 int v = FS_RENAME_DOES_D_MOVE;
1411 AC_MSG_RESULT([yes])
1412 AC_DEFINE(HAVE_FS_RENAME_DOES_D_MOVE, 1, [kernel has FS_RENAME_DOES_D_MOVE flag])
1420 # 2.6.23 have return type 'void' for unregister_blkdev
1421 AC_DEFUN([LC_UNREGISTER_BLKDEV_RETURN_INT],
1422 [AC_MSG_CHECKING([if unregister_blkdev return int])
1423 LB_LINUX_TRY_COMPILE([
1424 #include <linux/fs.h>
1426 int i = unregister_blkdev(0,NULL);
1428 AC_MSG_RESULT([yes])
1429 AC_DEFINE(HAVE_UNREGISTER_BLKDEV_RETURN_INT, 1,
1430 [unregister_blkdev return int])
1436 # 2.6.23 change .sendfile to .splice_read
1437 AC_DEFUN([LC_KERNEL_SPLICE_READ],
1438 [AC_MSG_CHECKING([if kernel has .splice_read])
1439 LB_LINUX_TRY_COMPILE([
1440 #include <linux/fs.h>
1442 struct file_operations file;
1444 file.splice_read = NULL;
1446 AC_MSG_RESULT([yes])
1447 AC_DEFINE(HAVE_KERNEL_SPLICE_READ, 1,
1448 [kernel has .slice_read])
1454 # 2.6.23 change .sendfile to .splice_read
1455 # RHEL4 (-92 kernel) have both sendfile and .splice_read API
1456 AC_DEFUN([LC_KERNEL_SENDFILE],
1457 [AC_MSG_CHECKING([if kernel has .sendfile])
1458 LB_LINUX_TRY_COMPILE([
1459 #include <linux/fs.h>
1461 struct file_operations file;
1463 file.sendfile = NULL;
1465 AC_MSG_RESULT([yes])
1466 AC_DEFINE(HAVE_KERNEL_SENDFILE, 1,
1467 [kernel has .sendfile])
1473 # 2.6.23 extract nfs export related data into exportfs.h
1474 AC_DEFUN([LC_HAVE_EXPORTFS_H],
1475 [LB_CHECK_FILE([$LINUX/include/linux/exportfs.h], [
1476 AC_DEFINE(HAVE_LINUX_EXPORTFS_H, 1,
1477 [kernel has include/exportfs.h])
1483 # 2.6.23 has new page fault handling API
1484 AC_DEFUN([LC_VM_OP_FAULT],
1485 [AC_MSG_CHECKING([kernel has .fault in vm_operation_struct])
1486 LB_LINUX_TRY_COMPILE([
1487 #include <linux/mm.h>
1489 struct vm_operations_struct op;
1493 AC_MSG_RESULT([yes])
1494 AC_DEFINE(HAVE_VM_OP_FAULT, 1,
1495 [kernel has .fault in vm_operation_struct])
1501 # 2.6.23 add code to wait other users to complete before removing procfs entry
1502 AC_DEFUN([LC_PROCFS_USERS],
1503 [AC_MSG_CHECKING([if kernel has pde_users member in procfs entry struct])
1504 LB_LINUX_TRY_COMPILE([
1505 #include <linux/proc_fs.h>
1507 struct proc_dir_entry pde;
1511 AC_MSG_RESULT([yes])
1512 AC_DEFINE(HAVE_PROCFS_USERS, 1,
1513 [kernel has pde_users member in procfs entry struct])
1519 # 2.6.23 exports exportfs_decode_fh
1520 AC_DEFUN([LC_EXPORTFS_DECODE_FH],
1521 [LB_CHECK_SYMBOL_EXPORT([exportfs_decode_fh],
1522 [fs/exportfs/expfs.c],[
1523 AC_DEFINE(HAVE_EXPORTFS_DECODE_FH, 1,
1524 [exportfs_decode_fh has been export])
1531 # 2.6.24 need linux/mm_types.h included
1532 AC_DEFUN([LC_HAVE_MMTYPES_H],
1533 [LB_CHECK_FILE([$LINUX/include/linux/mm_types.h], [
1534 AC_DEFINE(HAVE_LINUX_MMTYPES_H, 1,
1535 [kernel has include/mm_types.h])
1541 # 2.6.24 has bio_endio with 2 args
1542 AC_DEFUN([LC_BIO_ENDIO_2ARG],
1543 [AC_MSG_CHECKING([if kernel has bio_endio with 2 args])
1544 LB_LINUX_TRY_COMPILE([
1545 #include <linux/bio.h>
1549 AC_MSG_RESULT([yes])
1550 AC_DEFINE(HAVE_BIO_ENDIO_2ARG, 1,
1551 [kernel has bio_endio with 2 args])
1557 # 2.6.24 has new members in exports struct.
1558 AC_DEFUN([LC_FH_TO_DENTRY],
1559 [AC_MSG_CHECKING([if kernel has .fh_to_dentry member in export_operations struct])
1560 LB_LINUX_TRY_COMPILE([
1561 #ifdef HAVE_LINUX_EXPORTFS_H
1562 #include <linux/exportfs.h>
1564 #include <linux/fs.h>
1567 struct export_operations exp;
1569 exp.fh_to_dentry = NULL;
1571 AC_MSG_RESULT([yes])
1572 AC_DEFINE(HAVE_FH_TO_DENTRY, 1,
1573 [kernel has .fh_to_dentry member in export_operations struct])
1579 # 2.6.24 removes long aged procfs entry -> deleted member
1580 AC_DEFUN([LC_PROCFS_DELETED],
1581 [AC_MSG_CHECKING([if kernel has deleted member in procfs entry struct])
1582 LB_LINUX_TRY_COMPILE([
1583 #include <linux/proc_fs.h>
1585 struct proc_dir_entry pde;
1589 AC_MSG_RESULT([yes])
1590 AC_DEFINE(HAVE_PROCFS_DELETED, 1,
1591 [kernel has deleted member in procfs entry struct])
1597 # 2.6.24 has bdi_init()/bdi_destroy() functions.
1598 AC_DEFUN([LC_EXPORT_BDI_INIT],
1599 [LB_CHECK_SYMBOL_EXPORT([bdi_init],
1600 [mm/backing-dev.c],[
1601 AC_DEFINE(HAVE_BDI_INIT, 1,
1602 [bdi_init/bdi_destroy functions are present])
1609 # 2.6.25 change define to inline
1610 AC_DEFUN([LC_MAPPING_CAP_WRITEBACK_DIRTY],
1611 [AC_MSG_CHECKING([if kernel have mapping_cap_writeback_dirty])
1612 LB_LINUX_TRY_COMPILE([
1613 #include <linux/backing-dev.h>
1615 #ifndef mapping_cap_writeback_dirty
1616 mapping_cap_writeback_dirty(NULL);
1619 AC_MSG_RESULT([yes])
1620 AC_DEFINE(HAVE_MAPPING_CAP_WRITEBACK_DIRTY, 1,
1621 [kernel have mapping_cap_writeback_dirty])
1629 # 2.6.26 isn't export set_fs_pwd and change paramter in fs struct
1630 AC_DEFUN([LC_FS_STRUCT_USE_PATH],
1631 [AC_MSG_CHECKING([fs_struct use path structure])
1632 LB_LINUX_TRY_COMPILE([
1633 #include <asm/atomic.h>
1634 #include <linux/spinlock.h>
1635 #include <linux/fs_struct.h>
1638 struct fs_struct fs;
1642 AC_MSG_RESULT([yes])
1643 AC_DEFINE(HAVE_FS_STRUCT_USE_PATH, 1,
1644 [fs_struct use path structure])
1652 AC_DEFUN([LC_INODE_PERMISION_2ARGS],
1653 [AC_MSG_CHECKING([inode_operations->permission has two args])
1654 LB_LINUX_TRY_COMPILE([
1655 #include <linux/fs.h>
1657 struct inode *inode;
1659 inode->i_op->permission(NULL,0);
1661 AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
1662 [inode_operations->permission has two args])
1663 AC_MSG_RESULT([yes])
1669 # 2.6.27 has file_remove_suid instead of remove_suid
1670 AC_DEFUN([LC_FILE_REMOVE_SUID],
1671 [AC_MSG_CHECKING([kernel has file_remove_suid])
1672 LB_LINUX_TRY_COMPILE([
1673 #include <linux/fs.h>
1675 file_remove_suid(NULL);
1677 AC_DEFINE(HAVE_FILE_REMOVE_SUID, 1,
1678 [kernel have file_remove_suid])
1679 AC_MSG_RESULT([yes])
1685 # 2.6.27 have new page locking API
1686 AC_DEFUN([LC_TRYLOCKPAGE],
1687 [AC_MSG_CHECKING([kernel uses trylock_page for page lock])
1688 LB_LINUX_TRY_COMPILE([
1689 #include <linux/pagemap.h>
1693 AC_DEFINE(HAVE_TRYLOCK_PAGE, 1,
1694 [kernel uses trylock_page for page lock])
1695 AC_MSG_RESULT([yes])
1701 # 2.6.27 removed the read_inode from super_operations.
1702 AC_DEFUN([LC_READ_INODE_IN_SBOPS],
1703 [AC_MSG_CHECKING([super_operations has a read_inode field])
1704 LB_LINUX_TRY_COMPILE([
1705 #include <linux/fs.h>
1707 struct super_operations *sop;
1708 sop->read_inode(NULL);
1710 AC_DEFINE(HAVE_READ_INODE_IN_SBOPS, 1,
1711 [super_operations has a read_inode])
1712 AC_MSG_RESULT([yes])
1718 # 2.6.27 has inode_permission instead of permisson
1719 AC_DEFUN([LC_EXPORT_INODE_PERMISSION],
1720 [LB_CHECK_SYMBOL_EXPORT([inode_permission],
1722 AC_DEFINE(HAVE_EXPORT_INODE_PERMISSION, 1,
1723 [inode_permission is exported by the kernel])
1728 # 2.6.27 use 5th parameter in quota_on for remount.
1729 AC_DEFUN([LC_QUOTA_ON_5ARGS],
1730 [AC_MSG_CHECKING([quota_on needs 5 parameters])
1731 LB_LINUX_TRY_COMPILE([
1732 #include <linux/quota.h>
1734 struct quotactl_ops *qop;
1735 qop->quota_on(NULL, 0, 0, NULL, 0);
1737 AC_DEFINE(HAVE_QUOTA_ON_5ARGS, 1,
1738 [quota_on needs 5 paramters])
1739 AC_MSG_RESULT([yes])
1745 # 2.6.27 use 3th parameter in quota_off for remount.
1746 AC_DEFUN([LC_QUOTA_OFF_3ARGS],
1747 [AC_MSG_CHECKING([quota_off needs 3 parameters])
1748 LB_LINUX_TRY_COMPILE([
1749 #include <linux/quota.h>
1751 struct quotactl_ops *qop;
1752 qop->quota_off(NULL, 0, 0);
1754 AC_DEFINE(HAVE_QUOTA_OFF_3ARGS, 1,
1755 [quota_off needs 3 paramters])
1756 AC_MSG_RESULT([yes])
1762 # 2.6.27 has vfs_dq_off inline function.
1763 AC_DEFUN([LC_VFS_DQ_OFF],
1764 [AC_MSG_CHECKING([vfs_dq_off is defined])
1765 LB_LINUX_TRY_COMPILE([
1766 #include <linux/quotaops.h>
1768 vfs_dq_off(NULL, 0);
1770 AC_DEFINE(HAVE_VFS_DQ_OFF, 1, [vfs_dq_off is defined])
1771 AC_MSG_RESULT([yes])
1777 # LC_LOCK_MAP_ACQUIRE
1778 # after 2.6.27 lock_map_acquire replaces lock_acquire
1779 AC_DEFUN([LC_LOCK_MAP_ACQUIRE],
1780 [AC_MSG_CHECKING([if lock_map_acquire is defined])
1781 LB_LINUX_TRY_COMPILE([
1782 #include <linux/lockdep.h>
1784 lock_map_acquire(NULL);
1787 AC_DEFINE(HAVE_LOCK_MAP_ACQUIRE, 1,
1788 [lock_map_acquire is defined])
1794 # 2.6.27.15-2 sles11
1796 # 2.6.27 sles11 remove the bi_hw_segments
1797 AC_DEFUN([LC_BI_HW_SEGMENTS],
1798 [AC_MSG_CHECKING([struct bio has a bi_hw_segments field])
1799 LB_LINUX_TRY_COMPILE([
1800 #include <linux/bio.h>
1803 io.bi_hw_segments = 0;
1805 AC_DEFINE(HAVE_BI_HW_SEGMENTS, 1,
1806 [struct bio has a bi_hw_segments field])
1807 AC_MSG_RESULT([yes])
1814 # 2.6.27 sles11 move the quotaio_v1{2}.h from include/linux to fs
1815 # 2.6.32 move the quotaio_v1{2}.h from fs to fs/quota
1816 AC_DEFUN([LC_HAVE_QUOTAIO_H],
1817 [LB_CHECK_FILE([$LINUX/include/linux/quotaio_v2.h],[
1818 AC_DEFINE(HAVE_QUOTAIO_H, 1,
1819 [kernel has include/linux/quotaio_v2.h])
1820 ],[LB_CHECK_FILE([$LINUX/fs/quotaio_v2.h],[
1821 AC_DEFINE(HAVE_FS_QUOTAIO_H, 1,
1822 [kernel has fs/quotaio_v1.h])
1823 ],[LB_CHECK_FILE([$LINUX/fs/quota/quotaio_v2.h],[
1824 AC_DEFINE(HAVE_FS_QUOTA_QUOTAIO_H, 1,
1825 [kernel has fs/quota/quotaio_v2.h])
1833 # sles10 sp2 need 5 parameter for vfs_symlink
1834 AC_DEFUN([LC_VFS_SYMLINK_5ARGS],
1835 [AC_MSG_CHECKING([vfs_symlink need 5 parameter])
1836 LB_LINUX_TRY_COMPILE([
1837 #include <linux/fs.h>
1839 struct inode *dir = NULL;
1840 struct dentry *dentry = NULL;
1841 struct vfsmount *mnt = NULL;
1842 const char * path = NULL;
1843 vfs_symlink(dir, dentry, mnt, path, 0);
1845 AC_DEFINE(HAVE_VFS_SYMLINK_5ARGS, 1,
1846 [vfs_symlink need 5 parameteres])
1847 AC_MSG_RESULT([yes])
1853 # 2.6.27 sles11 has sb_any_quota_active
1854 AC_DEFUN([LC_SB_ANY_QUOTA_ACTIVE],
1855 [AC_MSG_CHECKING([Kernel has sb_any_quota_active])
1856 LB_LINUX_TRY_COMPILE([
1857 #include <linux/quotaops.h>
1859 sb_any_quota_active(NULL);
1861 AC_DEFINE(HAVE_SB_ANY_QUOTA_ACTIVE, 1,
1862 [Kernel has a sb_any_quota_active])
1863 AC_MSG_RESULT([yes])
1869 # 2.6.27 sles11 has sb_has_quota_active
1870 AC_DEFUN([LC_SB_HAS_QUOTA_ACTIVE],
1871 [AC_MSG_CHECKING([Kernel has sb_has_quota_active])
1872 LB_LINUX_TRY_COMPILE([
1873 #include <linux/quotaops.h>
1875 sb_has_quota_active(NULL, 0);
1877 AC_DEFINE(HAVE_SB_HAS_QUOTA_ACTIVE, 1,
1878 [Kernel has a sb_has_quota_active])
1879 AC_MSG_RESULT([yes])
1885 # 2.6.27 exported add_to_page_cache_lru.
1886 AC_DEFUN([LC_EXPORT_ADD_TO_PAGE_CACHE_LRU],
1887 [LB_CHECK_SYMBOL_EXPORT([add_to_page_cache_lru],
1889 AC_DEFINE(HAVE_ADD_TO_PAGE_CACHE_LRU, 1,
1890 [add_to_page_cache_lru functions are present])
1897 # 2.6.31 replaces blk_queue_hardsect_size by blk_queue_logical_block_size function
1898 AC_DEFUN([LC_BLK_QUEUE_LOG_BLK_SIZE],
1899 [AC_MSG_CHECKING([if blk_queue_logical_block_size is defined])
1900 LB_LINUX_TRY_COMPILE([
1901 #include <linux/blkdev.h>
1903 blk_queue_logical_block_size(NULL, 0);
1906 AC_DEFINE(HAVE_BLK_QUEUE_LOG_BLK_SIZE, 1,
1907 [blk_queue_logical_block_size is defined])
1915 # 2.6.32 add a limits member in struct request_queue.
1916 AC_DEFUN([LC_REQUEST_QUEUE_LIMITS],
1917 [AC_MSG_CHECKING([if request_queue has a limits field])
1918 LB_LINUX_TRY_COMPILE([
1919 #include <linux/blkdev.h>
1921 struct request_queue rq;
1922 rq.limits.io_min = 0;
1925 AC_DEFINE(HAVE_REQUEST_QUEUE_LIMITS, 1,
1926 [request_queue has a limits field])
1932 # 2.6.32 has bdi_register() functions.
1933 AC_DEFUN([LC_EXPORT_BDI_REGISTER],
1934 [LB_CHECK_SYMBOL_EXPORT([bdi_register],
1935 [mm/backing-dev.c],[
1936 AC_DEFINE(HAVE_BDI_REGISTER, 1,
1937 [bdi_register function is present])
1942 # 2.6.32 add s_bdi for super block
1943 AC_DEFUN([LC_SB_BDI],
1944 [AC_MSG_CHECKING([if super_block has s_bdi field])
1945 LB_LINUX_TRY_COMPILE([
1946 #include <linux/fs.h>
1948 struct super_block sb;
1952 AC_DEFINE(HAVE_SB_BDI, 1,
1953 [super_block has s_bdi field])
1959 # 2.6.32 removes blk_queue_max_sectors and add blk_queue_max_hw_sectors
1960 # check blk_queue_max_sectors and use it until disappear.
1961 AC_DEFUN([LC_BLK_QUEUE_MAX_SECTORS],
1962 [AC_MSG_CHECKING([if blk_queue_max_sectors is defined])
1963 LB_LINUX_TRY_COMPILE([
1964 #include <linux/blkdev.h>
1966 blk_queue_max_sectors(NULL, 0);
1969 AC_DEFINE(HAVE_BLK_QUEUE_MAX_SECTORS, 1,
1970 [blk_queue_max_sectors is defined])
1976 # 2.6.32 replaces 2 functions blk_queue_max_phys_segments and blk_queue_max_hw_segments by blk_queue_max_segments
1977 AC_DEFUN([LC_BLK_QUEUE_MAX_SEGMENTS],
1978 [AC_MSG_CHECKING([if blk_queue_max_segments is defined])
1979 LB_LINUX_TRY_COMPILE([
1980 #include <linux/blkdev.h>
1982 blk_queue_max_segments(NULL, 0);
1985 AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
1986 [blk_queue_max_segments is defined])
1995 # Check if kernel has been patched for 64-bit quota limits support.
1996 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
1997 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
1998 # that in the absence of quotaio_v1.h in the kernel headers.
2000 AC_DEFUN([LC_QUOTA64],[
2001 AC_MSG_CHECKING([if kernel has 64-bit quota limits support])
2002 tmp_flags="$EXTRA_KCFLAGS"
2003 EXTRA_KCFLAGS="-I$LINUX/fs"
2004 LB_LINUX_TRY_COMPILE([
2005 #include <linux/kernel.h>
2006 #include <linux/fs.h>
2007 #ifdef HAVE_QUOTAIO_H
2008 # include <linux/quotaio_v2.h>
2009 int versions[] = V2_INITQVERSIONS_R1;
2010 struct v2_disk_dqblk_r1 dqblk_r1;
2011 #elif defined(HAVE_FS_QUOTA_QUOTAIO_H)
2012 # include <quota/quotaio_v2.h>
2013 struct v2r1_disk_dqblk dqblk_r1;
2014 #elif defined(HAVE_FS_QUOTAIO_H)
2015 # include <quotaio_v2.h>
2016 struct v2r1_disk_dqblk dqblk_r1;
2018 #include <linux/quota.h>
2019 int ver = QFMT_VFS_V1;
2022 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
2023 AC_MSG_RESULT([yes])
2025 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
2026 AC_MSG_ERROR([You have got no 64-bit kernel quota support.])
2030 EXTRA_KCFLAGS=$tmp_flags
2035 # starting from 2.6.28 kernel replaces d_alloc_anon() with
2036 # d_obtain_alias() for getting anonymous dentries
2038 AC_DEFUN([LC_D_OBTAIN_ALIAS],
2039 [AC_MSG_CHECKING([d_obtain_alias exist in kernel])
2040 LB_LINUX_TRY_COMPILE([
2041 #include <linux/dcache.h>
2043 d_obtain_alias(NULL);
2045 AC_DEFINE(HAVE_D_OBTAIN_ALIAS, 1,
2046 [d_obtain_alias exist in kernel])
2047 AC_MSG_RESULT([yes])
2057 # Lustre linux kernel checks
2059 AC_DEFUN([LC_PROG_LINUX],
2060 [LC_LUSTRE_VERSION_H
2063 LC_CONFIG_LIBLUSTRE_RECOVERY
2064 LC_CONFIG_HEALTH_CHECK_WRITE
2065 LC_CONFIG_LRU_RESIZE
2067 LC_LLITE_LLOOP_MODULE
2070 LC_EXPORT_TRUNCATE_COMPLETE
2071 LC_EXPORT_TRUNCATE_RANGE
2072 LC_EXPORT_D_REHASH_COND
2073 LC_EXPORT___D_REHASH
2074 LC_EXPORT_NODE_TO_CPUMASK
2076 LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
2083 LC_POSIX_ACL_XATTR_H
2086 LC_STRUCT_INTENT_FILE
2091 LC_FUNC_HAVE_CAN_SLEEP_ARG
2094 LC_COOKIE_FOLLOW_LINK
2105 LC_EXPORT_SYNCHRONIZE_RCU
2111 LC_SECURITY_PLUG # for SLES10 SP2
2119 LC_STATFS_DENTRY_PARAM
2121 LC_INVALIDATEPAGE_RETURN_INT
2122 LC_UMOUNTBEGIN_HAS_VFSMOUNT
2124 LC_EXPORT_FILEMAP_FDATAWRITE_RANGE
2126 if test x$enable_server = xyes ; then
2127 LC_EXPORT_INVALIDATE_MAPPING_PAGES
2130 #2.6.18 + RHEL5 (fc6)
2137 LC_VFS_READDIR_U64_INO
2142 LC_CANCEL_DIRTY_PAGE
2144 # raid5-zerocopy patch
2148 LC_INVALIDATE_BDEV_2ARG
2149 LC_ASYNC_BLOCK_CIPHER
2151 LC_STRUCT_BLKCIPHER_DESC
2152 LC_FS_RENAME_DOES_D_MOVE
2155 LC_UNREGISTER_BLKDEV_RETURN_INT
2156 LC_KERNEL_SPLICE_READ
2161 LC_EXPORTFS_DECODE_FH
2171 LC_MAPPING_CAP_WRITEBACK_DIRTY
2174 LC_FS_STRUCT_USE_PATH
2177 LC_INODE_PERMISION_2ARGS
2180 LC_READ_INODE_IN_SBOPS
2181 LC_EXPORT_INODE_PERMISSION
2187 # 2.6.27.15-2 sles11
2190 LC_VFS_SYMLINK_5ARGS
2191 LC_SB_ANY_QUOTA_ACTIVE
2192 LC_SB_HAS_QUOTA_ACTIVE
2193 LC_EXPORT_ADD_TO_PAGE_CACHE_LRU
2196 LC_BLK_QUEUE_LOG_BLK_SIZE
2199 LC_REQUEST_QUEUE_LIMITS
2200 LC_EXPORT_BDI_REGISTER
2202 LC_BLK_QUEUE_MAX_SECTORS
2203 LC_BLK_QUEUE_MAX_SEGMENTS
2206 if test x$enable_server = xyes ; then
2207 AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
2208 LC_FUNC_DEV_SET_RDONLY
2215 # LC_CONFIG_CLIENT_SERVER
2217 # Build client/server sides of Lustre
2219 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
2220 [AC_MSG_CHECKING([whether to build Lustre server support])
2221 AC_ARG_ENABLE([server],
2222 AC_HELP_STRING([--disable-server],
2223 [disable Lustre server support]),
2224 [],[enable_server='yes'])
2225 AC_MSG_RESULT([$enable_server])
2227 AC_MSG_CHECKING([whether to build Lustre client support])
2228 AC_ARG_ENABLE([client],
2229 AC_HELP_STRING([--disable-client],
2230 [disable Lustre client support]),
2231 [],[enable_client='yes'])
2232 AC_MSG_RESULT([$enable_client])])
2235 # LC_CONFIG_LIBLUSTRE
2237 # whether to build liblustre
2239 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
2240 [AC_MSG_CHECKING([whether to build Lustre library])
2241 AC_ARG_ENABLE([liblustre],
2242 AC_HELP_STRING([--disable-liblustre],
2243 [disable building of Lustre library]),
2244 [],[enable_liblustre=$with_sysio])
2245 AC_MSG_RESULT([$enable_liblustre])
2246 # only build sysio if liblustre is built
2247 with_sysio="$enable_liblustre"
2249 AC_MSG_CHECKING([whether to build liblustre tests])
2250 AC_ARG_ENABLE([liblustre-tests],
2251 AC_HELP_STRING([--enable-liblustre-tests],
2252 [enable liblustre tests, if --disable-tests is used]),
2253 [],[enable_liblustre_tests=$enable_tests])
2254 if test x$enable_liblustre != xyes ; then
2255 enable_liblustre_tests='no'
2257 AC_MSG_RESULT([$enable_liblustre_tests])
2259 AC_MSG_CHECKING([whether to enable liblustre acl])
2260 AC_ARG_ENABLE([liblustre-acl],
2261 AC_HELP_STRING([--disable-liblustre-acl],
2262 [disable ACL support for liblustre]),
2263 [],[enable_liblustre_acl=yes])
2264 AC_MSG_RESULT([$enable_liblustre_acl])
2265 if test x$enable_liblustre_acl = xyes ; then
2266 AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
2269 # 2.6.29 change prepare/commit_write to write_begin/end
2270 AC_DEFUN([LC_WRITE_BEGIN_END],
2271 [AC_MSG_CHECKING([if kernel has .write_begin/end])
2272 LB_LINUX_TRY_COMPILE([
2273 #include <linux/fs.h>
2274 #include <linux/pagemap.h>
2275 #ifdef HAVE_LINUX_MMTYPES_H
2276 #include <linux/mm_types.h>
2279 struct address_space_operations aops;
2282 aops.write_begin = NULL;
2283 aops.write_end = NULL;
2284 page = grab_cache_page_write_begin(NULL, 0, 0);
2286 AC_MSG_RESULT([yes])
2287 AC_DEFINE(HAVE_KERNEL_WRITE_BEGIN_END, 1,
2288 [kernel has .write_begin/end])
2294 # 2.6.29 blkdev_put has 2 arguments
2295 AC_DEFUN([LC_BLKDEV_PUT_2ARGS],
2296 [AC_MSG_CHECKING([blkdev_put needs 2 parameters])
2297 LB_LINUX_TRY_COMPILE([
2298 #include <linux/fs.h>
2300 blkdev_put(NULL, 0);
2302 AC_DEFINE(HAVE_BLKDEV_PUT_2ARGS, 1,
2303 [blkdev_put needs 2 paramters])
2304 AC_MSG_RESULT([yes])
2310 # 2.6.29 dentry_open has 4 arguments
2311 AC_DEFUN([LC_DENTRY_OPEN_4ARGS],
2312 [AC_MSG_CHECKING([dentry_open needs 4 parameters])
2313 LB_LINUX_TRY_COMPILE([
2314 #include <linux/fs.h>
2316 dentry_open(NULL, NULL, 0, NULL);
2318 AC_DEFINE(HAVE_DENTRY_OPEN_4ARGS, 1,
2319 [dentry_open needs 4 paramters])
2320 AC_MSG_RESULT([yes])
2326 # 2.6.29 split file and anonymous page queues
2327 AC_DEFUN([LC_PAGEVEC_LRU_ADD_FILE],
2328 [AC_MSG_CHECKING([if kernel has .pagevec_lru_add_file])
2329 LB_LINUX_TRY_COMPILE([
2330 #include <linux/mm.h>
2331 #include <linux/pagevec.h>
2333 struct pagevec lru_pagevec;
2335 pagevec_init(&lru_pagevec, 0);
2336 pagevec_lru_add_file(&lru_pagevec);
2338 AC_MSG_RESULT([yes])
2339 AC_DEFINE(HAVE_PAGEVEC_LRU_ADD_FILE, 1,
2340 [kernel has .pagevec_lru_add_file])
2349 AC_ARG_ENABLE(mpitests,
2350 AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
2351 [include mpi tests]),
2362 MPICC_WRAPPER=$enableval
2372 if test x$enable_mpitests != xno; then
2373 AC_MSG_CHECKING([whether mpitests can be built])
2381 MPI_Initialized(&flag);
2384 AC_MSG_RESULT([yes])
2391 AC_SUBST(MPICC_WRAPPER)
2393 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
2394 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
2397 LC_CONFIG_LIBLUSTRE_RECOVERY
2403 # whether to enable quota support global control
2405 AC_DEFUN([LC_CONFIG_QUOTA],
2406 [AC_ARG_ENABLE([quota],
2407 AC_HELP_STRING([--enable-quota],
2408 [enable quota support]),
2409 [],[enable_quota='yes'])
2412 AC_DEFUN([LC_QUOTA],
2416 AC_CHECK_HEADER(sys/quota.h,
2417 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
2418 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
2424 # whether to enable split support
2426 AC_DEFUN([LC_CONFIG_SPLIT],
2427 [AC_MSG_CHECKING([whether to enable split support])
2428 AC_ARG_ENABLE([split],
2429 AC_HELP_STRING([--enable-split],
2430 [enable split support]),
2431 [],[enable_split='no'])
2432 AC_MSG_RESULT([$enable_split])
2433 if test x$enable_split != xno; then
2434 AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
2438 AC_DEFUN([LC_TASK_CLENV_TUX_INFO],
2439 [AC_MSG_CHECKING([tux_info])
2440 LB_LINUX_TRY_COMPILE([
2441 #include <linux/sched.h>
2443 struct task_struct task;
2446 AC_MSG_RESULT([yes])
2447 AC_DEFINE(LL_TASK_CL_ENV, tux_info, [have tux_info])
2448 have_task_clenv_store='yes'
2455 # LC_LLITE_LLOOP_MODULE
2456 # lloop_llite.ko does not currently work with page sizes
2459 AC_DEFUN([LC_LLITE_LLOOP_MODULE],
2460 [AC_MSG_CHECKING([whether to enable llite_lloop module])
2461 LB_LINUX_TRY_COMPILE([
2462 #include <asm/page.h>
2464 #if PAGE_SIZE >= 65536
2465 #error "PAGE_SIZE >= 65536"
2468 enable_llite_lloop_module='yes'
2469 AC_MSG_RESULT([yes])
2471 enable_llite_lloop_module='no'
2479 # other configure checks
2481 AC_DEFUN([LC_CONFIGURE],
2482 [LC_CONFIG_OBD_BUFFER_SIZE
2484 if test $target_cpu == "i686" -o $target_cpu == "x86_64"; then
2485 CFLAGS="$CFLAGS -Werror"
2488 # maximum MDS thread count
2491 # include/liblustre.h
2492 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
2494 # liblustre/llite_lib.h
2495 AC_CHECK_HEADERS([xtio.h file.h])
2498 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
2501 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
2502 AC_CHECK_FUNCS([inet_ntoa])
2504 # libsysio/src/readlink.c
2507 # lvfs/prng.c - depends on linux/types.h from liblustre/dir.c
2508 AC_CHECK_HEADERS([linux/random.h], [], [],
2509 [#ifdef HAVE_LINUX_TYPES_H
2510 # include <linux/types.h>
2515 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
2517 # check for -lz support
2521 [AC_CHECK_HEADERS([zlib.h],
2523 AC_DEFINE([HAVE_ADLER], 1,
2524 [support alder32 checksum type])],
2525 [AC_MSG_WARN([No zlib-devel package found,
2526 unable to use adler32 checksum])])],
2527 [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
2532 AC_ARG_ENABLE([mindf],
2533 AC_HELP_STRING([--enable-mindf],
2534 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
2536 if test "$enable_mindf" = "yes" ; then
2537 AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
2540 AC_ARG_ENABLE([fail_alloc],
2541 AC_HELP_STRING([--disable-fail-alloc],
2542 [disable randomly alloc failure]),
2543 [],[enable_fail_alloc=yes])
2544 AC_MSG_CHECKING([whether to randomly failing memory alloc])
2545 AC_MSG_RESULT([$enable_fail_alloc])
2546 if test x$enable_fail_alloc != xno ; then
2547 AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
2550 AC_ARG_ENABLE([invariants],
2551 AC_HELP_STRING([--enable-invariants],
2552 [enable invariant checking (cpu intensive)]),
2554 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
2555 AC_MSG_RESULT([$enable_invariants])
2556 if test x$enable_invariants = xyes ; then
2557 AC_DEFINE([INVARIANT_CHECK], 1, [enable invariant checking])
2560 AC_ARG_ENABLE([lu_ref],
2561 AC_HELP_STRING([--enable-lu_ref],
2562 [enable lu_ref reference tracking code]),
2564 AC_MSG_CHECKING([whether to track references with lu_ref])
2565 AC_MSG_RESULT([$enable_lu_ref])
2566 if test x$enable_lu_ref = xyes ; then
2567 AC_DEFINE([USE_LU_REF], 1, [enable lu_ref reference tracking code])
2570 AC_ARG_ENABLE([pgstate-track],
2571 AC_HELP_STRING([--enable-pgstate-track],
2572 [enable page state tracking]),
2573 [enable_pgstat_track='yes'],[])
2574 AC_MSG_CHECKING([whether to enable page state tracking])
2575 AC_MSG_RESULT([$enable_pgstat_track])
2576 if test x$enable_pgstat_track = xyes ; then
2577 AC_DEFINE([LUSTRE_PAGESTATE_TRACKING], 1,
2578 [enable page state tracking code])
2585 LC_DENTRY_OPEN_4ARGS
2586 LC_PAGEVEC_LRU_ADD_FILE
2593 # AM_CONDITIONALS for lustre
2595 AC_DEFUN([LC_CONDITIONALS],
2596 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
2597 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
2598 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
2599 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
2600 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
2601 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
2602 AM_CONDITIONAL(QUOTA, test x$enable_quota_module = xyes)
2603 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
2604 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
2605 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
2606 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
2607 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
2608 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
2609 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
2610 AM_CONDITIONAL(LLITE_LLOOP, test x$enable_llite_lloop_module = xyes)
2616 # files that should be generated with AC_OUTPUT
2618 AC_DEFUN([LC_CONFIG_FILES],
2622 lustre/autoconf/Makefile
2623 lustre/conf/Makefile
2624 lustre/contrib/Makefile
2626 lustre/include/Makefile
2627 lustre/include/lustre_ver.h
2628 lustre/include/linux/Makefile
2629 lustre/include/lustre/Makefile
2630 lustre/kernel_patches/targets/2.6-rhel6.target
2631 lustre/kernel_patches/targets/2.6-rhel5.target
2632 lustre/kernel_patches/targets/2.6-sles10.target
2633 lustre/kernel_patches/targets/2.6-sles11.target
2634 lustre/kernel_patches/targets/2.6-oel5.target
2635 lustre/kernel_patches/targets/2.6-fc11.target
2636 lustre/kernel_patches/targets/2.6-fc12.target
2637 lustre/ldlm/Makefile
2639 lustre/fid/autoMakefile
2640 lustre/liblustre/Makefile
2641 lustre/liblustre/tests/Makefile
2642 lustre/liblustre/tests/mpi/Makefile
2643 lustre/llite/Makefile
2644 lustre/llite/autoMakefile
2645 lustre/lclient/Makefile
2647 lustre/lov/autoMakefile
2648 lustre/lvfs/Makefile
2649 lustre/lvfs/autoMakefile
2651 lustre/mdc/autoMakefile
2653 lustre/lmv/autoMakefile
2655 lustre/mds/autoMakefile
2657 lustre/mdt/autoMakefile
2659 lustre/cmm/autoMakefile
2661 lustre/mdd/autoMakefile
2663 lustre/fld/autoMakefile
2664 lustre/obdclass/Makefile
2665 lustre/obdclass/autoMakefile
2666 lustre/obdclass/linux/Makefile
2667 lustre/obdecho/Makefile
2668 lustre/obdecho/autoMakefile
2669 lustre/obdfilter/Makefile
2670 lustre/obdfilter/autoMakefile
2672 lustre/osc/autoMakefile
2674 lustre/ost/autoMakefile
2675 lustre/osd-ldiskfs/Makefile
2676 lustre/osd-ldiskfs/autoMakefile
2678 lustre/mgc/autoMakefile
2680 lustre/mgs/autoMakefile
2681 lustre/ptlrpc/Makefile
2682 lustre/ptlrpc/autoMakefile
2683 lustre/ptlrpc/gss/Makefile
2684 lustre/ptlrpc/gss/autoMakefile
2685 lustre/quota/Makefile
2686 lustre/quota/autoMakefile
2687 lustre/scripts/Makefile
2688 lustre/tests/Makefile
2689 lustre/tests/mpi/Makefile
2690 lustre/utils/Makefile
2691 lustre/utils/gss/Makefile
2692 lustre/obdclass/darwin/Makefile