4 # Wrapper for AC_CONFIG_SUBDIR
6 AC_DEFUN([LC_CONFIG_SRCDIR],
7 [AC_CONFIG_SRCDIR([lustre/obdclass/obdo.c])
15 # lustre specific paths
17 AC_DEFUN([LC_PATH_DEFAULTS],
18 [# ptlrpc kernel build requires this
26 demodir='$(docdir)/demo'
29 pkgexampledir='${pkgdatadir}/examples'
30 AC_SUBST(pkgexampledir)
36 # is the target os supported?
38 AC_DEFUN([LC_TARGET_SUPPORTED],
50 # LC_CONFIG_OBD_BUFFER_SIZE
52 # the maximum buffer size of lctl ioctls
54 AC_DEFUN([LC_CONFIG_OBD_BUFFER_SIZE],
55 [AC_MSG_CHECKING([maximum OBD ioctl size])
56 AC_ARG_WITH([obd-buffer-size],
57 AC_HELP_STRING([--with-obd-buffer-size=[size]],
58 [set lctl ioctl maximum bytes (default=8192)]),
60 OBD_BUFFER_SIZE=$with_obd_buffer_size
64 AC_MSG_RESULT([$OBD_BUFFER_SIZE bytes])
65 AC_DEFINE_UNQUOTED(OBD_MAX_IOCTL_BUFFER, $OBD_BUFFER_SIZE, [IOCTL Buffer Size])
71 AC_DEFUN([LC_READLINK_SSIZE_T],
72 [AC_MSG_CHECKING([if readlink returns ssize_t])
76 ssize_t readlink(const char *, char *, size_t);
79 AC_DEFINE(HAVE_POSIX_1003_READLINK, 1, [readlink returns ssize_t])
86 # LC_FUNC_DEV_SET_RDONLY
88 # check whether dev_set_rdonly is exported. This is needed until we
89 # have another mechanism to fence IO from the underlying device.
91 AC_DEFUN([LC_FUNC_DEV_SET_RDONLY],
92 [LB_CHECK_SYMBOL_EXPORT([dev_set_rdonly],
93 [block/ll_rw_block.c,block/blk-core.c],[
94 AC_DEFINE(HAVE_DEV_SET_RDONLY, 1, [kernel exports dev_set_rdonly])
96 AC_MSG_WARN([kernel missing dev_set_rdonly patch for testing])
101 # Ensure stack size big than 8k in Lustre server (all kernels)
103 AC_DEFUN([LC_STACK_SIZE],
104 [AC_MSG_CHECKING([stack size big than 8k])
105 LB_LINUX_TRY_COMPILE([
106 #include <linux/thread_info.h>
108 #if THREAD_SIZE < 8192
109 #error "stack size < 8192"
114 AC_MSG_ERROR([Lustre requires that Linux is configured with at least a 8KB stack.])
119 # Allow the user to set the MDS thread upper limit
121 AC_DEFUN([LC_MDS_MAX_THREADS],
123 AC_ARG_WITH([mds_max_threads],
124 AC_HELP_STRING([--with-mds-max-threads=size],
125 [define the maximum number of threads available on the MDS: (default=512)]),
127 MDS_THREAD_COUNT=$with_mds_max_threads
128 AC_DEFINE_UNQUOTED(MDT_MAX_THREADS, $MDS_THREAD_COUNT, [maximum number of mdt threads])
135 # the pinger is temporary, until we have the recovery node in place
137 AC_DEFUN([LC_CONFIG_PINGER],
138 [AC_MSG_CHECKING([whether to enable pinger support])
139 AC_ARG_ENABLE([pinger],
140 AC_HELP_STRING([--disable-pinger],
141 [disable recovery pinger support]),
142 [],[enable_pinger='yes'])
143 AC_MSG_RESULT([$enable_pinger])
144 if test x$enable_pinger != xno ; then
145 AC_DEFINE(ENABLE_PINGER, 1, Use the Pinger)
152 # do checksum of bulk data between client and OST
154 AC_DEFUN([LC_CONFIG_CHECKSUM],
155 [AC_MSG_CHECKING([whether to enable data checksum support])
156 AC_ARG_ENABLE([checksum],
157 AC_HELP_STRING([--disable-checksum],
158 [disable data checksum support]),
159 [],[enable_checksum='yes'])
160 AC_MSG_RESULT([$enable_checksum])
161 if test x$enable_checksum != xno ; then
162 AC_DEFINE(ENABLE_CHECKSUM, 1, do data checksums)
167 # LC_CONFIG_LIBLUSTRE_RECOVERY
169 AC_DEFUN([LC_CONFIG_LIBLUSTRE_RECOVERY],
170 [AC_MSG_CHECKING([whether to enable liblustre recovery support])
171 AC_ARG_ENABLE([liblustre-recovery],
172 AC_HELP_STRING([--disable-liblustre-recovery],
173 [disable liblustre recovery support]),
174 [],[enable_liblustre_recovery='yes'])
175 AC_MSG_RESULT([$enable_liblustre_recovery])
176 if test x$enable_liblustre_recovery != xno ; then
177 AC_DEFINE(ENABLE_LIBLUSTRE_RECOVERY, 1, Liblustre Can Recover)
182 # LC_CONFIG_HEALTH_CHECK_WRITE
184 # Turn off the actual write to the disk
186 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE],
187 [AC_MSG_CHECKING([whether to enable a write with the health check])
188 AC_ARG_ENABLE([health_write],
189 AC_HELP_STRING([--enable-health_write],
190 [enable disk writes when doing health check]),
191 [],[enable_health_write='no'])
192 AC_MSG_RESULT([$enable_health_write])
193 if test x$enable_health_write != xno ; then
194 AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, Write when Checking Health)
198 AC_DEFUN([LC_CONFIG_LRU_RESIZE],
199 [AC_MSG_CHECKING([whether to enable lru self-adjusting])
200 AC_ARG_ENABLE([lru_resize],
201 AC_HELP_STRING([--enable-lru-resize],
202 [enable lru resize support]),
203 [],[enable_lru_resize='yes'])
204 AC_MSG_RESULT([$enable_lru_resize])
205 if test x$enable_lru_resize != xno; then
206 AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])
211 # Quota support. The kernel must support CONFIG_QUOTA.
213 AC_DEFUN([LC_QUOTA_CONFIG],
214 [LB_LINUX_CONFIG_IM([QUOTA],[],[
215 AC_MSG_ERROR([Lustre quota requires that CONFIG_QUOTA is enabled in your kernel.])
219 # truncate_complete_page() was exported from RHEL5/SLES10, but not in SLES11 SP0 (2.6.27)
220 # remove_from_page_cache() was exported between 2.6.35 and 2.6.38
221 # delete_from_page_cache() is exported from 2.6.39
222 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE],
223 [LB_CHECK_SYMBOL_EXPORT([truncate_complete_page],
225 [AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
226 [kernel export truncate_complete_page])])
227 LB_CHECK_SYMBOL_EXPORT([remove_from_page_cache],
229 [AC_DEFINE(HAVE_REMOVE_FROM_PAGE_CACHE, 1,
230 [kernel export remove_from_page_cache])])
231 LB_CHECK_SYMBOL_EXPORT([delete_from_page_cache],
233 [AC_DEFINE(HAVE_DELETE_FROM_PAGE_CACHE, 1,
234 [kernel export delete_from_page_cache])])
237 AC_DEFUN([LC_EXPORT_D_REHASH_COND],
238 [LB_CHECK_SYMBOL_EXPORT([d_rehash_cond],
240 AC_DEFINE(HAVE_D_REHASH_COND, 1,
241 [d_rehash_cond is exported by the kernel])
246 AC_DEFUN([LC_EXPORT___D_REHASH],
247 [LB_CHECK_SYMBOL_EXPORT([__d_rehash],
249 AC_DEFINE(HAVE___D_REHASH, 1,
250 [__d_rehash is exported by the kernel])
255 # The actual symbol exported varies among architectures, so we need
256 # to check many symbols (but only in the current architecture.) No
257 # matter what symbol is exported, the kernel #defines node_to_cpumask
258 # to the appropriate function and that's what we use.
259 AC_DEFUN([LC_EXPORT_NODE_TO_CPUMASK],
260 [LB_CHECK_SYMBOL_EXPORT([node_to_cpumask],
261 [arch/$LINUX_ARCH/mm/numa.c],
262 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
263 [node_to_cpumask is exported by
264 the kernel])]) # x86_64
265 LB_CHECK_SYMBOL_EXPORT([node_to_cpu_mask],
266 [arch/$LINUX_ARCH/kernel/smpboot.c],
267 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
268 [node_to_cpumask is exported by
269 the kernel])]) # ia64
270 LB_CHECK_SYMBOL_EXPORT([node_2_cpu_mask],
271 [arch/$LINUX_ARCH/kernel/smpboot.c],
272 [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
273 [node_to_cpumask is exported by
274 the kernel])]) # i386
279 # between 2.6.5 - 2.6.22 filemap_populate is exported in some kernels
281 AC_DEFUN([LC_FILEMAP_POPULATE],
282 [AC_MSG_CHECKING([for exported filemap_populate])
283 LB_LINUX_TRY_COMPILE([
284 #include <asm/page.h>
285 #include <linux/mm.h>
287 filemap_populate(NULL, 0, 0, __pgprot(0), 0, 0);
290 AC_DEFINE(HAVE_FILEMAP_POPULATE, 1, [Kernel exports filemap_populate])
299 AC_DEFUN([LC_BIT_SPINLOCK_H],
300 [LB_CHECK_FILE([$LINUX/include/linux/bit_spinlock.h],[
301 AC_MSG_CHECKING([if bit_spinlock.h can be compiled])
302 LB_LINUX_TRY_COMPILE([
303 #include <asm/processor.h>
304 #include <linux/spinlock.h>
305 #include <linux/bit_spinlock.h>
308 AC_DEFINE(HAVE_BIT_SPINLOCK_H, 1, [Kernel has bit_spinlock.h])
319 AC_DEFUN([LC_CONST_ACL_SIZE],
320 [AC_MSG_CHECKING([calc acl size])
322 CFLAGS="$CFLAGS -I$LINUX/include -I$LINUX_OBJ/include -I$LINUX_OBJ/include2 -I$LINUX/arch/`echo $target_cpu|sed -e 's/powerpc64/powerpc/' -e 's/x86_64/x86/' -e 's/i.86/x86/'`/include -include $AUTOCONF_HDIR/autoconf.h $EXTRA_KCFLAGS"
325 #include <linux/types.h>
328 #define __LINUX_POSIX_ACL_H
330 #ifdef CONFIG_FS_POSIX_ACL
331 # include <linux/posix_acl_xattr.h>
338 /* LUSTRE_POSIX_ACL_MAX_ENTRIES = 32 */
339 int size = posix_acl_xattr_size(32);
340 FILE *f = fopen("acl.size","w+");
341 fprintf(f,"%d", size);
347 acl_size=`cat acl.size`
348 AC_MSG_RESULT([ACL size $acl_size])
349 AC_DEFINE_UNQUOTED(XATTR_ACL_SIZE, AS_TR_SH([$acl_size]), [size of xattr acl])
351 AC_ERROR([ACL size can't be computed])
353 AC_MSG_RESULT([can't check ACL size, make it 260])
354 AC_DEFINE_UNQUOTED(XATTR_ACL_SIZE,260)
362 AC_DEFUN([LC_CAPA_CRYPTO],
363 [LB_LINUX_CONFIG_IM([CRYPTO],[],[
364 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])
366 LB_LINUX_CONFIG_IM([CRYPTO_HMAC],[],[
367 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])
369 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],[
370 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])
375 # LC_CONFIG_RMTCLIENT
378 dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
380 AC_DEFUN([LC_CONFIG_RMTCLIENT],
381 [LB_LINUX_CONFIG_IM([CRYPTO_AES],[],[
382 AC_MSG_WARN([Lustre remote client require that CONFIG_CRYPTO_AES is enabled in your kernel.])
387 # LC_CONFIG_GSS_KEYRING (default enabled, if gss is enabled)
389 AC_DEFUN([LC_CONFIG_GSS_KEYRING],
390 [AC_MSG_CHECKING([whether to enable gss keyring backend])
391 AC_ARG_ENABLE([gss_keyring],
392 [AC_HELP_STRING([--disable-gss-keyring],
393 [disable gss keyring backend])],
394 [],[enable_gss_keyring='yes'])
395 AC_MSG_RESULT([$enable_gss_keyring])
397 if test x$enable_gss_keyring != xno; then
398 LB_LINUX_CONFIG_IM([KEYS],[],
399 [AC_MSG_ERROR([GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.])])
401 AC_CHECK_LIB([keyutils], [keyctl_search], [],
402 [AC_MSG_ERROR([libkeyutils is not found, which is required by gss keyring backend])],)
404 AC_DEFINE([HAVE_GSS_KEYRING], [1],
405 [Define this if you enable gss keyring backend])
409 AC_DEFUN([LC_CONFIG_SUNRPC],
410 [LB_LINUX_CONFIG_IM([SUNRPC],[],
411 [AC_MSG_ERROR([kernel SUNRPC support is required by using GSS.])])
415 # LC_CONFIG_GSS (default disabled)
417 # Build gss and related tools of Lustre. Currently both kernel and user space
418 # parts are depend on linux platform.
420 AC_DEFUN([LC_CONFIG_GSS],
421 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
423 [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
424 [],[enable_gss='no'])
425 AC_MSG_RESULT([$enable_gss])
427 if test x$enable_gss == xyes; then
428 LC_CONFIG_GSS_KEYRING
431 AC_DEFINE([HAVE_GSS], [1], [Define this if you enable gss])
433 LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
434 [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
435 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
436 [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
437 LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
438 [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
439 LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
440 [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
442 AC_CHECK_LIB([gssapi], [gss_init_sec_context],
443 [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"],
444 [AC_CHECK_LIB([gssglue], [gss_init_sec_context],
445 [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue"],
446 [AC_MSG_ERROR([libgssapi or libgssglue is not found, which is required by GSS.])])],)
448 AC_SUBST(GSSAPI_LIBS)
454 AC_DEFUN([LC_TASK_CLENV_STORE],
456 AC_MSG_CHECKING([if we can store cl_env in task_struct])
457 if test x$have_task_clenv_store != xyes ; then
458 LC_TASK_CLENV_TUX_INFO
464 # ~2.6.12 merge patch from oracle to convert tree_lock from spinlock to rwlock
465 # yet tree_lock is converted from rwlock to spin_lock since v2.6.26
466 AC_DEFUN([LC_RW_TREE_LOCK],
467 [AC_MSG_CHECKING([if kernel has tree_lock as rwlock])
468 tmp_flags="$EXTRA_KCFLAGS"
469 EXTRA_KCFLAGS="-Werror"
470 LB_LINUX_TRY_COMPILE([
471 #include <linux/fs.h>
473 struct address_space a;
475 write_lock(&a.tree_lock);
478 AC_DEFINE(HAVE_RW_TREE_LOCK, 1, [kernel has tree_lock as rw_lock])
482 EXTRA_KCFLAGS="$tmp_flags"
487 # LC_UMOUNTBEGIN_HAS_VFSMOUNT
488 # 2.6.18~2.6.25 umount_begin has different parameters
489 AC_DEFUN([LC_UMOUNTBEGIN_HAS_VFSMOUNT],
490 [AC_MSG_CHECKING([if umount_begin needs vfsmount parameter instead of super_block])
491 tmp_flags="$EXTRA_KCFLAGS"
492 EXTRA_KCFLAGS="-Werror"
493 LB_LINUX_TRY_COMPILE([
494 #include <linux/fs.h>
497 static void cfg_umount_begin (struct vfsmount *v, int flags)
502 static struct super_operations cfg_super_operations = {
503 .umount_begin = cfg_umount_begin,
506 cfg_super_operations.umount_begin(NULL,0);
509 AC_DEFINE(HAVE_UMOUNTBEGIN_VFSMOUNT, 1,
510 [Define umount_begin need second argument])
514 EXTRA_KCFLAGS="$tmp_flags"
517 #2.6.18 + RHEL5 (fc6)
522 # fiemap.h is added since v2.6.28
523 # RHEL5 2.6.18 has it, while SLES10 2.6.27 does not
525 AC_DEFUN([LC_LINUX_FIEMAP_H],
526 [LB_CHECK_FILE([$LINUX/include/linux/fiemap.h],[
527 AC_MSG_CHECKING([if fiemap.h can be compiled])
528 LB_LINUX_TRY_COMPILE([
529 #include <linux/types.h>
530 #include <linux/fiemap.h>
533 AC_DEFINE(HAVE_LINUX_FIEMAP_H, 1, [Kernel has fiemap.h])
544 # 2.6.19 replaced writev with aio_write
545 AC_DEFUN([LC_FILE_WRITEV],
546 [AC_MSG_CHECKING([writev in fops])
547 LB_LINUX_TRY_COMPILE([
548 #include <linux/fs.h>
550 struct file_operations *fops = NULL;
554 AC_DEFINE(HAVE_FILE_WRITEV, 1,
562 # 2.6.19 replaced readv with aio_read
563 AC_DEFUN([LC_FILE_READV],
564 [AC_MSG_CHECKING([readv in fops])
565 LB_LINUX_TRY_COMPILE([
566 #include <linux/fs.h>
568 struct file_operations *fops = NULL;
572 AC_DEFINE(HAVE_FILE_READV, 1,
581 # LC_CANCEL_DIRTY_PAGE
582 # 2.6.20 introduced cancel_dirty_page instead of clear_page_dirty.
583 AC_DEFUN([LC_CANCEL_DIRTY_PAGE],
584 [AC_MSG_CHECKING([kernel has cancel_dirty_page])
585 # the implementation of cancel_dirty_page in OFED 1.4.1's SLES10 SP2
586 # backport is broken, so ignore it
587 if test -f $OFED_BACKPORT_PATH/linux/mm.h &&
588 test "$(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
591 LB_LINUX_TRY_COMPILE([
592 #include <linux/mm.h>
593 #include <linux/page-flags.h>
595 cancel_dirty_page(NULL, 0);
598 AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
599 [kernel has cancel_dirty_page instead of clear_page_dirty])
606 # raid5-zerocopy patch
611 # In order to support raid5 zerocopy patch, we have to patch the kernel to make
612 # it support constant page, which means the page won't be modified during the
615 AC_DEFUN([LC_PAGE_CONSTANT],
616 [AC_MSG_CHECKING([if kernel have PageConstant defined])
617 LB_LINUX_TRY_COMPILE([
618 #include <linux/mm.h>
619 #include <linux/page-flags.h>
622 #error "Have no raid5 zcopy patch"
626 AC_DEFINE(HAVE_PAGE_CONSTANT, 1, [kernel have PageConstant supported])
634 # 2.6.22 lost second parameter for invalidate_bdev
635 AC_DEFUN([LC_INVALIDATE_BDEV_2ARG],
636 [AC_MSG_CHECKING([if invalidate_bdev has second argument])
637 LB_LINUX_TRY_COMPILE([
638 #include <linux/buffer_head.h>
640 invalidate_bdev(NULL,0);
643 AC_DEFINE(HAVE_INVALIDATE_BDEV_2ARG, 1,
644 [invalidate_bdev has second argument])
651 # check for crypto API
653 AC_DEFUN([LC_ASYNC_BLOCK_CIPHER],
654 [AC_MSG_CHECKING([if kernel has block cipher support])
655 LB_LINUX_TRY_COMPILE([
656 #include <linux/err.h>
657 #include <linux/crypto.h>
659 struct crypto_blkcipher *tfm;
660 tfm = crypto_alloc_blkcipher("aes", 0, sizeof(tfm) );
663 AC_DEFINE(HAVE_ASYNC_BLOCK_CIPHER, 1, [kernel has block cipher support])
670 # check for struct hash_desc
672 AC_DEFUN([LC_STRUCT_HASH_DESC],
673 [AC_MSG_CHECKING([if kernel has struct hash_desc])
674 LB_LINUX_TRY_COMPILE([
675 #include <linux/err.h>
676 #include <linux/crypto.h>
678 struct hash_desc foo __attribute__ ((unused));
681 AC_DEFINE(HAVE_STRUCT_HASH_DESC, 1, [kernel has struct hash_desc])
688 # check for struct blkcipher_desc
690 AC_DEFUN([LC_STRUCT_BLKCIPHER_DESC],
691 [AC_MSG_CHECKING([if kernel has struct blkcipher_desc])
692 LB_LINUX_TRY_COMPILE([
693 #include <linux/err.h>
694 #include <linux/crypto.h>
696 struct blkcipher_desc foo __attribute__ ((unused));
699 AC_DEFINE(HAVE_STRUCT_BLKCIPHER_DESC, 1, [kernel has struct blkcipher_desc])
706 # 2.6.19 check for FS_RENAME_DOES_D_MOVE flag
708 AC_DEFUN([LC_FS_RENAME_DOES_D_MOVE],
709 [AC_MSG_CHECKING([if kernel has FS_RENAME_DOES_D_MOVE flag])
710 LB_LINUX_TRY_COMPILE([
711 #include <linux/fs.h>
713 int v __attribute__ ((unused));
714 v = FS_RENAME_DOES_D_MOVE;
717 AC_DEFINE(HAVE_FS_RENAME_DOES_D_MOVE, 1, [kernel has FS_RENAME_DOES_D_MOVE flag])
725 # 2.6.23 have return type 'void' for unregister_blkdev
726 AC_DEFUN([LC_UNREGISTER_BLKDEV_RETURN_INT],
727 [AC_MSG_CHECKING([if unregister_blkdev return int])
728 LB_LINUX_TRY_COMPILE([
729 #include <linux/fs.h>
731 int i __attribute__ ((unused));
732 i = unregister_blkdev(0,NULL);
735 AC_DEFINE(HAVE_UNREGISTER_BLKDEV_RETURN_INT, 1,
736 [unregister_blkdev return int])
742 # 2.6.23 change .sendfile to .splice_read
743 AC_DEFUN([LC_KERNEL_SPLICE_READ],
744 [AC_MSG_CHECKING([if kernel has .splice_read])
745 LB_LINUX_TRY_COMPILE([
746 #include <linux/fs.h>
748 struct file_operations file;
750 file.splice_read = NULL;
753 AC_DEFINE(HAVE_KERNEL_SPLICE_READ, 1,
754 [kernel has .slice_read])
760 # 2.6.23 change .sendfile to .splice_read
761 # RHEL4 (-92 kernel) have both sendfile and .splice_read API
762 AC_DEFUN([LC_KERNEL_SENDFILE],
763 [AC_MSG_CHECKING([if kernel has .sendfile])
764 LB_LINUX_TRY_COMPILE([
765 #include <linux/fs.h>
767 struct file_operations file;
769 file.sendfile = NULL;
772 AC_DEFINE(HAVE_KERNEL_SENDFILE, 1,
773 [kernel has .sendfile])
779 # 2.6.23 extract nfs export related data into exportfs.h
780 AC_DEFUN([LC_HAVE_EXPORTFS_H],
781 [LB_CHECK_FILE([$LINUX/include/linux/exportfs.h], [
782 AC_DEFINE(HAVE_LINUX_EXPORTFS_H, 1,
783 [kernel has include/exportfs.h])
789 # 2.6.23 has new page fault handling API
790 AC_DEFUN([LC_VM_OP_FAULT],
791 [AC_MSG_CHECKING([kernel has .fault in vm_operation_struct])
792 LB_LINUX_TRY_COMPILE([
793 #include <linux/mm.h>
795 struct vm_operations_struct op;
800 AC_DEFINE(HAVE_VM_OP_FAULT, 1,
801 [kernel has .fault in vm_operation_struct])
807 # 2.6.23 add code to wait other users to complete before removing procfs entry
808 AC_DEFUN([LC_PROCFS_USERS],
809 [AC_MSG_CHECKING([if kernel has pde_users member in procfs entry struct])
810 LB_LINUX_TRY_COMPILE([
811 #include <linux/proc_fs.h>
813 struct proc_dir_entry pde;
818 AC_DEFINE(HAVE_PROCFS_USERS, 1,
819 [kernel has pde_users member in procfs entry struct])
821 LB_LINUX_TRY_COMPILE([
822 #include "$LINUX/fs/proc/internal.h"
824 struct proc_dir_entry_aux pde_aux;
826 pde_aux.pde_users = 0;
829 AC_DEFINE(HAVE_PROCFS_USERS, 1,
830 [kernel has pde_users member in proc_dir_entry_aux])
837 # 2.6.23 exports exportfs_decode_fh
838 AC_DEFUN([LC_EXPORTFS_DECODE_FH],
839 [LB_CHECK_SYMBOL_EXPORT([exportfs_decode_fh],
840 [fs/exportfs/expfs.c],[
841 AC_DEFINE(HAVE_EXPORTFS_DECODE_FH, 1,
842 [exportfs_decode_fh has been export])
849 # 2.6.24 need linux/mm_types.h included
850 AC_DEFUN([LC_HAVE_MMTYPES_H],
851 [LB_CHECK_FILE([$LINUX/include/linux/mm_types.h], [
852 AC_DEFINE(HAVE_LINUX_MMTYPES_H, 1,
853 [kernel has include/mm_types.h])
859 # 2.6.24 has bio_endio with 2 args
860 AC_DEFUN([LC_BIO_ENDIO_2ARG],
861 [AC_MSG_CHECKING([if kernel has bio_endio with 2 args])
862 LB_LINUX_TRY_COMPILE([
863 #include <linux/bio.h>
868 AC_DEFINE(HAVE_BIO_ENDIO_2ARG, 1,
869 [kernel has bio_endio with 2 args])
875 # 2.6.24 has new members in exports struct.
876 AC_DEFUN([LC_FH_TO_DENTRY],
877 [AC_MSG_CHECKING([if kernel has .fh_to_dentry member in export_operations struct])
878 LB_LINUX_TRY_COMPILE([
879 #include <linux/fs.h>
880 #ifdef HAVE_LINUX_EXPORTFS_H
881 #include <linux/exportfs.h>
884 do{ }while(sizeof(((struct export_operations *)0)->fh_to_dentry));
887 AC_DEFINE(HAVE_FH_TO_DENTRY, 1,
888 [kernel has .fh_to_dentry member in export_operations struct])
894 # 2.6.24 removes long aged procfs entry -> deleted member
895 AC_DEFUN([LC_PROCFS_DELETED],
896 [AC_MSG_CHECKING([if kernel has deleted member in procfs entry struct])
897 LB_LINUX_TRY_COMPILE([
898 #include <linux/proc_fs.h>
900 struct proc_dir_entry pde;
902 pde.deleted = sizeof(pde);
905 AC_DEFINE(HAVE_PROCFS_DELETED, 1,
906 [kernel has deleted member in procfs entry struct])
912 # 2.6.24 has bdi_init()/bdi_destroy() functions.
913 AC_DEFUN([LC_EXPORT_BDI_INIT],
914 [LB_CHECK_SYMBOL_EXPORT([bdi_init],
916 AC_DEFINE(HAVE_BDI_INIT, 1,
917 [bdi_init/bdi_destroy functions are present])
924 # 2.6.26 isn't export set_fs_pwd and change paramter in fs struct
925 AC_DEFUN([LC_FS_STRUCT_USE_PATH],
926 [AC_MSG_CHECKING([fs_struct use path structure])
927 LB_LINUX_TRY_COMPILE([
928 #include <asm/atomic.h>
929 #include <linux/spinlock.h>
930 #include <linux/fs_struct.h>
934 fs.pwd = *((struct path *)sizeof(fs));
937 AC_DEFINE(HAVE_FS_STRUCT_USE_PATH, 1,
938 [fs_struct use path structure])
948 # LC_SECURITY_PLUG # for SLES10 SP2 (2.6.27)
949 # check security plug in sles10 sp2 kernel
950 AC_DEFUN([LC_SECURITY_PLUG],
951 [AC_MSG_CHECKING([If kernel has security plug support])
952 LB_LINUX_TRY_COMPILE([
953 #include <linux/fs.h>
954 #include <linux/stddef.h>
956 notify_change(NULL, NULL, NULL);
959 AC_DEFINE(HAVE_SECURITY_PLUG, 1,
960 [SLES10 SP2 use extra parameter in vfs])
966 AC_DEFUN([LC_PGMKWRITE_USE_VMFAULT],
967 [AC_MSG_CHECKING([kernel .page_mkwrite uses struct vm_fault *])
968 tmp_flags="$EXTRA_KCFLAGS"
969 EXTRA_KCFLAGS="-Werror"
970 LB_LINUX_TRY_COMPILE([
971 #include <linux/mm.h>
973 ((struct vm_operations_struct *)0)->page_mkwrite((struct vm_area_struct *)0, (struct vm_fault *)0);
976 AC_DEFINE(HAVE_PGMKWRITE_USE_VMFAULT, 1,
977 [kernel vm_operation_struct.page_mkwrite uses struct vm_fault * as second parameter])
981 EXTRA_KCFLAGS="$tmp_flags"
984 AC_DEFUN([LC_PGMKWRITE_COMPACT],
985 [AC_MSG_CHECKING([if kernel .page_mkwrite is located in vm_operation_struct._pmkw])
986 tmp_flags="$EXTRA_KCFLAGS"
987 EXTRA_KCFLAGS="-Werror"
988 LB_LINUX_TRY_COMPILE([
989 #include <linux/mm.h>
991 struct vm_operations_struct *vm_ops;
994 vm_ops->_pmkw.page_mkwrite(NULL, NULL);
997 AC_DEFINE(HAVE_PGMKWRITE_COMPACT, 1,
998 [kernel .page_mkwrite is located in vm_operation_struct._pmkw])
1002 EXTRA_KCFLAGS="$tmp_flags"
1005 AC_DEFUN([LC_INODE_PERMISION_2ARGS],
1006 [AC_MSG_CHECKING([inode_operations->permission has two args])
1007 LB_LINUX_TRY_COMPILE([
1008 #include <linux/fs.h>
1010 struct inode *inode __attribute__ ((unused));
1013 inode->i_op->permission(NULL, 0);
1015 AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
1016 [inode_operations->permission has two args])
1017 AC_MSG_RESULT([yes])
1023 # 2.6.27 have new page locking API
1024 AC_DEFUN([LC_TRYLOCKPAGE],
1025 [AC_MSG_CHECKING([kernel uses trylock_page for page lock])
1026 LB_LINUX_TRY_COMPILE([
1027 #include <linux/pagemap.h>
1031 AC_DEFINE(HAVE_TRYLOCK_PAGE, 1,
1032 [kernel uses trylock_page for page lock])
1033 AC_MSG_RESULT([yes])
1039 # 2.6.27 removed the read_inode from super_operations.
1040 AC_DEFUN([LC_READ_INODE_IN_SBOPS],
1041 [AC_MSG_CHECKING([super_operations has a read_inode field])
1042 LB_LINUX_TRY_COMPILE([
1043 #include <linux/fs.h>
1045 struct super_operations *sop;
1046 sop->read_inode(NULL);
1048 AC_DEFINE(HAVE_READ_INODE_IN_SBOPS, 1,
1049 [super_operations has a read_inode])
1050 AC_MSG_RESULT([yes])
1056 # 2.6.27 has inode_permission instead of permisson
1057 AC_DEFUN([LC_EXPORT_INODE_PERMISSION],
1058 [LB_CHECK_SYMBOL_EXPORT([inode_permission],
1060 AC_DEFINE(HAVE_EXPORT_INODE_PERMISSION, 1,
1061 [inode_permission is exported by the kernel])
1066 # 2.6.27 use 5th parameter in quota_on for remount.
1067 AC_DEFUN([LC_QUOTA_ON_5ARGS],
1068 [AC_MSG_CHECKING([quota_on needs 5 parameters])
1069 LB_LINUX_TRY_COMPILE([
1070 #include <linux/fs.h>
1071 #include <linux/quota.h>
1073 struct quotactl_ops *qop = NULL;
1074 qop->quota_on(NULL, 0, 0, NULL, 0);
1076 AC_DEFINE(HAVE_QUOTA_ON_5ARGS, 1,
1077 [quota_on needs 5 paramters])
1078 AC_MSG_RESULT([yes])
1084 # 2.6.27 use 3th parameter in quota_off for remount.
1085 AC_DEFUN([LC_QUOTA_OFF_3ARGS],
1086 [AC_MSG_CHECKING([quota_off needs 3 parameters])
1087 LB_LINUX_TRY_COMPILE([
1088 #include <linux/fs.h>
1089 #include <linux/quota.h>
1091 struct quotactl_ops *qop = NULL;
1092 qop->quota_off(NULL, 0, 0);
1094 AC_DEFINE(HAVE_QUOTA_OFF_3ARGS, 1,
1095 [quota_off needs 3 paramters])
1096 AC_MSG_RESULT([yes])
1102 # 2.6.27 has vfs_dq_off inline function.
1103 AC_DEFUN([LC_VFS_DQ_OFF],
1104 [AC_MSG_CHECKING([vfs_dq_off is defined])
1105 LB_LINUX_TRY_COMPILE([
1106 #include <linux/quotaops.h>
1108 vfs_dq_off(NULL, 0);
1110 AC_DEFINE(HAVE_VFS_DQ_OFF, 1, [vfs_dq_off is defined])
1111 AC_MSG_RESULT([yes])
1117 # 2.6.34 has quotactl_ops->[sg]et_dqblk that take struct fs_disk_quota
1118 AC_DEFUN([LC_HAVE_DQUOT_FS_DISK_QUOTA],
1119 tmp_flags="$EXTRA_KCFLAGS"
1120 EXTRA_KCFLAGS="-Werror"
1121 [AC_MSG_CHECKING([if quotactl_ops.set_dqblk takes struct fs_disk_quota])
1122 LB_LINUX_TRY_COMPILE([
1123 #include <linux/fs.h>
1124 #include <linux/quota.h>
1126 struct quotactl_ops qops = {};
1127 struct fs_disk_quota fdq;
1128 qops.set_dqblk(NULL, 0, 0, &fdq);
1130 AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1, [quotactl_ops.set_dqblk takes struct fs_disk_quota])
1131 AC_MSG_RESULT([yes])
1135 EXTRA_KCFLAGS="$tmp_flags"
1138 # 2.6.34 has renamed dquot options to dquot_*, check for dquot_suspend
1139 AC_DEFUN([LC_HAVE_DQUOT_SUSPEND],
1140 [AC_MSG_CHECKING([if dquot_suspend is defined])
1141 LB_LINUX_TRY_COMPILE([
1142 #include <linux/quotaops.h>
1144 dquot_suspend(NULL, -1);
1146 AC_DEFINE(HAVE_DQUOT_SUSPEND, 1, [dquot_suspend is defined])
1147 AC_MSG_RESULT([yes])
1153 # LC_LOCK_MAP_ACQUIRE
1154 # after 2.6.27 lock_map_acquire replaces lock_acquire
1155 AC_DEFUN([LC_LOCK_MAP_ACQUIRE],
1156 [AC_MSG_CHECKING([if lock_map_acquire is defined])
1157 LB_LINUX_TRY_COMPILE([
1158 #include <linux/lockdep.h>
1160 lock_map_acquire(NULL);
1163 AC_DEFINE(HAVE_LOCK_MAP_ACQUIRE, 1,
1164 [lock_map_acquire is defined])
1170 # 2.6.27.15-2 sles11
1172 # 2.6.27 sles11 remove the bi_hw_segments
1173 AC_DEFUN([LC_BI_HW_SEGMENTS],
1174 [AC_MSG_CHECKING([struct bio has a bi_hw_segments field])
1175 LB_LINUX_TRY_COMPILE([
1176 #include <linux/bio.h>
1179 io.bi_hw_segments = sizeof(io);
1181 AC_DEFINE(HAVE_BI_HW_SEGMENTS, 1,
1182 [struct bio has a bi_hw_segments field])
1183 AC_MSG_RESULT([yes])
1190 # 2.6.27 sles11 move the quotaio_v1{2}.h from include/linux to fs
1191 # 2.6.32 move the quotaio_v1{2}.h from fs to fs/quota
1192 AC_DEFUN([LC_HAVE_QUOTAIO_H],
1193 [LB_CHECK_FILE([$LINUX/include/linux/quotaio_v2.h],[
1194 AC_DEFINE(HAVE_QUOTAIO_H, 1,
1195 [kernel has include/linux/quotaio_v2.h])
1196 ],[LB_CHECK_FILE([$LINUX/fs/quotaio_v2.h],[
1197 AC_DEFINE(HAVE_FS_QUOTAIO_H, 1,
1198 [kernel has fs/quotaio_v1.h])
1199 ],[LB_CHECK_FILE([$LINUX/fs/quota/quotaio_v2.h],[
1200 AC_DEFINE(HAVE_FS_QUOTA_QUOTAIO_H, 1,
1201 [kernel has fs/quota/quotaio_v2.h])
1209 # 2.6.27 sles11 has sb_any_quota_active
1210 AC_DEFUN([LC_SB_ANY_QUOTA_ACTIVE],
1211 [AC_MSG_CHECKING([Kernel has sb_any_quota_active])
1212 LB_LINUX_TRY_COMPILE([
1213 #include <linux/quotaops.h>
1215 sb_any_quota_active(NULL);
1217 AC_DEFINE(HAVE_SB_ANY_QUOTA_ACTIVE, 1,
1218 [Kernel has a sb_any_quota_active])
1219 AC_MSG_RESULT([yes])
1225 # 2.6.27 sles11 has sb_has_quota_active
1226 AC_DEFUN([LC_SB_HAS_QUOTA_ACTIVE],
1227 [AC_MSG_CHECKING([Kernel has sb_has_quota_active])
1228 LB_LINUX_TRY_COMPILE([
1229 #include <linux/quotaops.h>
1231 sb_has_quota_active(NULL, 0);
1233 AC_DEFINE(HAVE_SB_HAS_QUOTA_ACTIVE, 1,
1234 [Kernel has a sb_has_quota_active])
1235 AC_MSG_RESULT([yes])
1241 # 2.6.27 exported add_to_page_cache_lru.
1242 AC_DEFUN([LC_EXPORT_ADD_TO_PAGE_CACHE_LRU],
1243 [LB_CHECK_SYMBOL_EXPORT([add_to_page_cache_lru],
1245 AC_DEFINE(HAVE_ADD_TO_PAGE_CACHE_LRU, 1,
1246 [add_to_page_cache_lru functions are present])
1252 # 2.6.29 introduce sb_any_quota_loaded.
1254 AC_DEFUN([LC_SB_ANY_QUOTA_LOADED],
1255 [AC_MSG_CHECKING([Kernel has sb_any_quota_loaded])
1256 LB_LINUX_TRY_COMPILE([
1257 #include <linux/quotaops.h>
1259 sb_any_quota_loaded(NULL);
1261 AC_DEFINE(HAVE_SB_ANY_QUOTA_LOADED, 1,
1262 [Kernel has a sb_any_quota_loaded])
1263 AC_MSG_RESULT([yes])
1269 # 2.6.30 x86 node_to_cpumask has been removed. must use cpumask_of_node
1270 AC_DEFUN([LC_EXPORT_CPUMASK_OF_NODE],
1271 [LB_CHECK_SYMBOL_EXPORT([node_to_cpumask_map],
1272 [arch/$LINUX_ARCH/mm/numa.c],
1273 [AC_DEFINE(HAVE_CPUMASK_OF_NODE, 1,
1274 [node_to_cpumask_map is exported by
1275 the kernel])]) # x86_64
1279 # 2.6.31 replaces blk_queue_hardsect_size by blk_queue_logical_block_size function
1280 AC_DEFUN([LC_BLK_QUEUE_LOG_BLK_SIZE],
1281 [AC_MSG_CHECKING([if blk_queue_logical_block_size is defined])
1282 LB_LINUX_TRY_COMPILE([
1283 #include <linux/blkdev.h>
1285 blk_queue_logical_block_size(NULL, 0);
1288 AC_DEFINE(HAVE_BLK_QUEUE_LOG_BLK_SIZE, 1,
1289 [blk_queue_logical_block_size is defined])
1297 # 2.6.32 introduced inode_newsize_ok
1298 AC_DEFUN([LC_VFS_INODE_NEWSIZE_OK],
1299 [AC_MSG_CHECKING([if inode_newsize_ok is defined])
1300 LB_LINUX_TRY_COMPILE([
1301 #include <linux/fs.h>
1303 return inode_newsize_ok(NULL, 0);
1306 AC_DEFINE(HAVE_VFS_INODE_NEWSIZE_OK, 1,
1307 [inode_newsize_ok is defined])
1313 # 2.6.32 changes cache_detail's member cache_request to cache_upcall
1314 # in kernel commit bc74b4f5e63a09fb78e245794a0de1e5a2716bbe
1315 AC_DEFUN([LC_CACHE_UPCALL],
1316 [AC_MSG_CHECKING([if cache_detail has cache_upcall field])
1317 LB_LINUX_TRY_COMPILE([
1318 #include <linux/sunrpc/cache.h>
1320 struct cache_detail cd;
1321 cd.cache_upcall = NULL;
1324 AC_DEFINE(HAVE_CACHE_UPCALL, 1,
1325 [cache_detail has cache_upcall field])
1331 # 2.6.32 add a limits member in struct request_queue.
1332 AC_DEFUN([LC_REQUEST_QUEUE_LIMITS],
1333 [AC_MSG_CHECKING([if request_queue has a limits field])
1334 LB_LINUX_TRY_COMPILE([
1335 #include <linux/blkdev.h>
1337 struct request_queue rq;
1338 rq.limits.io_min = 0;
1341 AC_DEFINE(HAVE_REQUEST_QUEUE_LIMITS, 1,
1342 [request_queue has a limits field])
1348 # 2.6.32 has bdi_register() functions.
1349 AC_DEFUN([LC_EXPORT_BDI_REGISTER],
1350 [LB_CHECK_SYMBOL_EXPORT([bdi_register],
1351 [mm/backing-dev.c],[
1352 AC_DEFINE(HAVE_BDI_REGISTER, 1,
1353 [bdi_register function is present])
1358 # 2.6.32 add s_bdi for super block
1359 AC_DEFUN([LC_SB_BDI],
1360 [AC_MSG_CHECKING([if super_block has s_bdi field])
1361 LB_LINUX_TRY_COMPILE([
1362 #include <linux/fs.h>
1364 struct super_block sb;
1368 AC_DEFINE(HAVE_SB_BDI, 1,
1369 [super_block has s_bdi field])
1375 # 2.6.27.15-2 SuSE 11 sp0 kernels lack the name field for BDI
1376 AC_DEFUN([LC_BDI_NAME],
1377 [AC_MSG_CHECKING([if backing_device_info has name field])
1378 LB_LINUX_TRY_COMPILE([
1379 #include <linux/blkdev.h>
1381 struct backing_dev_info bdi;
1385 AC_DEFINE(HAVE_BDI_NAME, 1,
1386 [backing_device_info has name field])
1392 # 2.6.32 removes blk_queue_max_sectors and add blk_queue_max_hw_sectors
1393 # check blk_queue_max_sectors and use it until disappear.
1394 AC_DEFUN([LC_BLK_QUEUE_MAX_SECTORS],
1395 [AC_MSG_CHECKING([if blk_queue_max_sectors is defined])
1396 LB_LINUX_TRY_COMPILE([
1397 #include <linux/blkdev.h>
1399 blk_queue_max_sectors(NULL, 0);
1402 AC_DEFINE(HAVE_BLK_QUEUE_MAX_SECTORS, 1,
1403 [blk_queue_max_sectors is defined])
1409 # 2.6.32 replaces 2 functions blk_queue_max_phys_segments and blk_queue_max_hw_segments by blk_queue_max_segments
1410 AC_DEFUN([LC_BLK_QUEUE_MAX_SEGMENTS],
1411 [AC_MSG_CHECKING([if blk_queue_max_segments is defined])
1412 LB_LINUX_TRY_COMPILE([
1413 #include <linux/blkdev.h>
1415 blk_queue_max_segments(NULL, 0);
1418 AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
1419 [blk_queue_max_segments is defined])
1428 # Check if kernel has been patched for 64-bit quota limits support.
1429 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
1430 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
1431 # that in the absence of quotaio_v1.h in the kernel headers.
1433 AC_DEFUN([LC_QUOTA64],[
1434 AC_MSG_CHECKING([if kernel has 64-bit quota limits support])
1435 tmp_flags="$EXTRA_KCFLAGS"
1436 EXTRA_KCFLAGS="-I$LINUX/fs"
1437 LB_LINUX_TRY_COMPILE([
1438 #include <linux/kernel.h>
1439 #include <linux/fs.h>
1440 #ifdef HAVE_QUOTAIO_H
1441 # include <linux/quotaio_v2.h>
1442 int versions[] = V2_INITQVERSIONS_R1;
1443 struct v2_disk_dqblk_r1 dqblk_r1;
1444 #elif defined(HAVE_FS_QUOTA_QUOTAIO_H)
1445 # include <quota/quotaio_v2.h>
1446 struct v2r1_disk_dqblk dqblk_r1;
1447 #elif defined(HAVE_FS_QUOTAIO_H)
1448 # include <quotaio_v2.h>
1449 struct v2r1_disk_dqblk dqblk_r1;
1451 #include <linux/quota.h>
1452 int ver = QFMT_VFS_V1;
1455 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
1456 AC_MSG_RESULT([yes])
1458 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
1459 AC_MSG_ERROR([You have got no 64-bit kernel quota support.])
1463 EXTRA_KCFLAGS=$tmp_flags
1466 # 2.6.32 set_cpus_allowed is no more defined if CONFIG_CPUMASK_OFFSTACK=yes
1467 AC_DEFUN([LC_SET_CPUS_ALLOWED],
1468 [AC_MSG_CHECKING([if kernel defines set_cpus_allowed])
1469 LB_LINUX_TRY_COMPILE(
1470 [#include <linux/sched.h>],
1471 [struct task_struct *p = NULL;
1472 cpumask_t mask = { { 0 } };
1473 (void) set_cpus_allowed(p, mask);],
1474 [AC_MSG_RESULT([yes])
1475 AC_DEFINE(HAVE_SET_CPUS_ALLOWED, 1,
1476 [set_cpus_allowed is exported by the kernel])],
1477 [AC_MSG_RESULT([no])] )])
1479 # 2.6.32 introduces selinux_is_enabled()
1480 AC_DEFUN([LC_SELINUX_IS_ENABLED],
1481 [AC_MSG_CHECKING([if selinux_is_enabled is available])
1482 LB_LINUX_TRY_COMPILE([
1483 #include <linux/selinux.h>
1485 selinux_is_enabled();
1487 AC_MSG_RESULT([yes])
1488 AC_DEFINE(HAVE_SELINUX_IS_ENABLED, 1,
1489 [selinux_is_enabled is defined])
1497 # starting from 2.6.28 kernel replaces d_alloc_anon() with
1498 # d_obtain_alias() for getting anonymous dentries
1499 # RHEL5(2.6.18) has d_obtain_alias but SLES11SP0(2.6.27) not
1501 AC_DEFUN([LC_D_OBTAIN_ALIAS],
1502 [AC_MSG_CHECKING([d_obtain_alias exist in kernel])
1503 LB_LINUX_TRY_COMPILE([
1504 #include <linux/dcache.h>
1506 d_obtain_alias(NULL);
1508 AC_DEFINE(HAVE_D_OBTAIN_ALIAS, 1,
1509 [d_obtain_alias exist in kernel])
1510 AC_MSG_RESULT([yes])
1517 # LC_EXPORT_GENERIC_ERROR_REMOVE_PAGE
1519 AC_DEFUN([LC_EXPORT_GENERIC_ERROR_REMOVE_PAGE],
1520 [LB_CHECK_SYMBOL_EXPORT(
1521 [generic_error_remove_page],
1523 [AC_DEFINE(HAS_GENERIC_ERROR_REMOVE_PAGE, 1,
1524 [kernel export generic_error_remove_page])],
1529 # 2.6.32 if kernel export access_process_vm().
1530 AC_DEFUN([LC_EXPORT_ACCESS_PROCESS_VM],
1531 [LB_CHECK_SYMBOL_EXPORT([access_process_vm],
1533 [AC_DEFINE(HAVE_ACCESS_PROCESS_VM, 1,
1534 [access_process_vm function is present])],
1540 # 2.6.36 fs_struct.lock use spinlock instead of rwlock.
1542 AC_DEFUN([LC_FS_STRUCT_RWLOCK],
1543 [AC_MSG_CHECKING([if fs_struct.lock use rwlock])
1544 LB_LINUX_TRY_COMPILE([
1545 #include <asm/atomic.h>
1546 #include <linux/spinlock.h>
1547 #include <linux/fs_struct.h>
1549 ((struct fs_struct *)0)->lock = (rwlock_t){ 0 };
1551 AC_DEFINE(HAVE_FS_STRUCT_RWLOCK, 1,
1552 [fs_struct.lock use rwlock])
1553 AC_MSG_RESULT([yes])
1560 # 2.6.36 super_operations add evict_inode method. it hybird of
1561 # delete_inode & clear_inode.
1563 AC_DEFUN([LC_SBOPS_EVICT_INODE],
1564 [AC_MSG_CHECKING([if super_operations.evict_inode exist])
1565 LB_LINUX_TRY_COMPILE([
1566 #include <linux/fs.h>
1568 ((struct super_operations *)0)->evict_inode(NULL);
1570 AC_DEFINE(HAVE_SBOPS_EVICT_INODE, 1,
1571 [super_operations.evict_inode() is exist in kernel])
1572 AC_MSG_RESULT([yes])
1579 # 2.6.35 file_operations.fsync taken 2 arguments.
1580 # 3.0.0 file_operations.fsync takes 4 arguments.
1582 AC_DEFUN([LC_FILE_FSYNC],
1583 [AC_MSG_CHECKING([if file_operations.fsync takes 4 or 2 arguments])
1584 LB_LINUX_TRY_COMPILE([
1585 #include <linux/fs.h>
1587 ((struct file_operations *)0)->fsync(NULL, 0, 0, 0);
1589 AC_DEFINE(HAVE_FILE_FSYNC_4ARGS, 1,
1590 [file_operations.fsync takes 4 arguments])
1591 AC_MSG_RESULT([yes, 4 args])
1593 LB_LINUX_TRY_COMPILE([
1594 #include <linux/fs.h>
1596 ((struct file_operations *)0)->fsync(NULL, 0);
1598 AC_DEFINE(HAVE_FILE_FSYNC_2ARGS, 1,
1599 [file_operations.fsync takes 2 arguments])
1600 AC_MSG_RESULT([yes, 2 args])
1608 # 2.6.37 remove kernel_locked
1610 AC_DEFUN([LC_KERNEL_LOCKED],
1611 [AC_MSG_CHECKING([if kernel_locked is defined])
1612 LB_LINUX_TRY_COMPILE([
1613 #include <linux/smp_lock.h>
1617 AC_MSG_RESULT([yes])
1618 AC_DEFINE(HAVE_KERNEL_LOCKED, 1,
1619 [kernel_locked is defined])
1626 # 2.6.38 dentry_operations.d_compare() taken 7 arguments.
1628 AC_DEFUN([LC_D_COMPARE_7ARGS],
1629 [AC_MSG_CHECKING([if d_compare taken 7 arguments])
1630 LB_LINUX_TRY_COMPILE([
1631 #include <linux/dcache.h>
1633 ((struct dentry_operations*)0)->d_compare(NULL,NULL,NULL,NULL,0,NULL,NULL);
1635 AC_DEFINE(HAVE_D_COMPARE_7ARGS, 1,
1636 [d_compare need 7 arguments])
1637 AC_MSG_RESULT([yes])
1644 # 2.6.38 dentry_operations.d_delete() defined 'const' for 1st parameter.
1646 AC_DEFUN([LC_D_DELETE_CONST],
1647 [AC_MSG_CHECKING([if d_delete has const declare on first parameter])
1648 tmp_flags="$EXTRA_KCFLAGS"
1649 EXTRA_KCFLAGS="-Werror"
1650 LB_LINUX_TRY_COMPILE([
1651 #include <linux/dcache.h>
1653 const struct dentry *d = NULL;
1654 ((struct dentry_operations*)0)->d_delete(d);
1656 AC_DEFINE(HAVE_D_DELETE_CONST, const,
1657 [d_delete first parameter declared const])
1658 AC_MSG_RESULT([yes])
1660 AC_DEFINE(HAVE_D_DELETE_CONST, , [])
1663 EXTRA_KCFLAGS="$tmp_flags"
1667 # 2.6.38 dcache_lock removed. rcu-walk commited.
1669 AC_DEFUN([LC_DCACHE_LOCK],
1670 [AC_MSG_CHECKING([if dcache_lock is exist])
1671 LB_LINUX_TRY_COMPILE([
1672 #include <linux/dcache.h>
1674 spin_lock(&dcache_lock);
1676 AC_DEFINE(HAVE_DCACHE_LOCK, 1,
1677 [dcache_lock is exist])
1678 AC_MSG_RESULT([yes])
1685 # 2.6.38 export blkdev_get_by_dev
1687 AC_DEFUN([LC_BLKDEV_GET_BY_DEV],
1688 [LB_CHECK_SYMBOL_EXPORT([blkdev_get_by_dev],
1690 AC_DEFINE(HAVE_BLKDEV_GET_BY_DEV, 1,
1691 [blkdev_get_by_dev is exported by the kernel])
1697 # 2.6.38 use path as 4th parameter in quota_on.
1699 AC_DEFUN([LC_QUOTA_ON_USE_PATH],
1700 [AC_MSG_CHECKING([quota_on use path as parameter])
1701 tmp_flags="$EXTRA_KCFLAGS"
1702 EXTRA_KCFLAGS="-Werror"
1703 LB_LINUX_TRY_COMPILE([
1704 #include <linux/fs.h>
1705 #include <linux/quota.h>
1707 ((struct quotactl_ops *)0)->quota_on(NULL, 0, 0, ((struct path*)0));
1709 AC_DEFINE(HAVE_QUOTA_ON_USE_PATH, 1,
1710 [quota_on use path as 4th paramter])
1711 AC_MSG_RESULT([yes])
1715 EXTRA_KCFLAGS="$tmp_flags"
1719 # 2.6.38 export simple_setattr
1721 AC_DEFUN([LC_EXPORT_SIMPLE_SETATTR],
1722 [LB_CHECK_SYMBOL_EXPORT([simple_setattr],
1724 AC_DEFINE(HAVE_SIMPLE_SETATTR, 1,
1725 [simple_setattr is exported by the kernel])
1731 # 2.6.39 remove unplug_fn from request_queue.
1733 AC_DEFUN([LC_REQUEST_QUEUE_UNPLUG_FN],
1734 [AC_MSG_CHECKING([if request_queue has unplug_fn field])
1735 LB_LINUX_TRY_COMPILE([
1736 #include <linux/blkdev.h>
1738 do{ }while(sizeof(((struct request_queue *)0)->unplug_fn));
1740 AC_DEFINE(HAVE_REQUEST_QUEUE_UNPLUG_FN, 1,
1741 [request_queue has unplug_fn field])
1742 AC_MSG_RESULT([yes])
1749 # 2.6.39 replace get_sb with mount in struct file_system_type
1751 AC_DEFUN([LC_HAVE_FSTYPE_MOUNT],
1752 [AC_MSG_CHECKING([if file_system_type has mount field])
1753 LB_LINUX_TRY_COMPILE([
1754 #include <linux/fs.h>
1756 struct file_system_type fst;
1757 void *i = (void *) fst.mount;
1759 AC_DEFINE(HAVE_FSTYPE_MOUNT, 1,
1760 [struct file_system_type has mount field])
1761 AC_MSG_RESULT([yes])
1768 # 3.0 dirty_inode() has a flag parameter
1769 # see kernel commit aa38572954ade525817fe88c54faebf85e5a61c0
1771 AC_DEFUN([LC_DIRTY_INODE_WITH_FLAG],
1772 [AC_MSG_CHECKING([if dirty_inode super_operation takes flag])
1773 LB_LINUX_TRY_COMPILE([
1774 #include <linux/fs.h>
1776 struct inode *inode;
1777 inode->i_sb->s_op->dirty_inode(NULL, 0);
1779 AC_DEFINE(HAVE_DIRTY_INODE_HAS_FLAG, 1,
1780 [dirty_inode super_operation takes flag])
1781 AC_MSG_RESULT([yes])
1788 # 2.6.38 generic_permission taken 4 parameters.
1789 # in fact, it means rcu-walk aware permission bring.
1791 # 3.1 generic_permission taken 2 parameters.
1792 # see kernel commit 2830ba7f34ebb27c4e5b8b6ef408cd6d74860890
1794 AC_DEFUN([LC_GENERIC_PERMISSION],
1795 [AC_MSG_CHECKING([if generic_permission take 2 or 4 arguments])
1796 LB_LINUX_TRY_COMPILE([
1797 #include <linux/fs.h>
1799 generic_permission(NULL, 0);
1801 AC_DEFINE(HAVE_GENERIC_PERMISSION_2ARGS, 1,
1802 [generic_permission taken 2 arguments])
1803 AC_MSG_RESULT([yes, 2 args])
1805 LB_LINUX_TRY_COMPILE([
1806 #include <linux/fs.h>
1808 generic_permission(NULL, 0, 0, NULL);
1810 AC_DEFINE(HAVE_GENERIC_PERMISSION_4ARGS, 1,
1811 [generic_permission taken 4 arguments])
1812 AC_MSG_RESULT([yes, 4 args])
1820 # 3.1 renames lock-manager ops(lock_manager_operations) from fl_xxx to lm_xxx
1821 # see kernel commit 8fb47a4fbf858a164e973b8ea8ef5e83e61f2e50
1823 AC_DEFUN([LC_LM_XXX_LOCK_MANAGER_OPS],
1824 [AC_MSG_CHECKING([if lock-manager ops renamed to lm_xxx])
1825 LB_LINUX_TRY_COMPILE([
1826 #include <linux/fs.h>
1828 struct lock_manager_operations lm_ops;
1829 lm_ops.lm_compare_owner = NULL;
1831 AC_DEFINE(HAVE_LM_XXX_LOCK_MANAGER_OPS, 1,
1832 [lock-manager ops renamed to lm_xxx])
1833 AC_MSG_RESULT([yes])
1840 # 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait/
1841 # inode_dio_done instead.
1842 # see kernel commit bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3
1844 AC_DEFUN([LC_INODE_DIO_WAIT],
1845 [AC_MSG_CHECKING([if inode->i_alloc_sem is killed and use inode_dio_wait/done.])
1846 LB_LINUX_TRY_COMPILE([
1847 #include <linux/fs.h>
1849 inode_dio_wait((struct inode *)0);
1850 inode_dio_done((struct inode *)0);
1852 AC_DEFINE(HAVE_INODE_DIO_WAIT, 1,
1853 [inode->i_alloc_sem is killed and use inode_dio_wait/done])
1854 AC_MSG_RESULT([yes])
1861 # 3.1 adds get_acl method to inode_operations to read ACL from disk.
1862 # see kernel commit 4e34e719e457f2e031297175410fc0bd4016a085
1864 AC_DEFUN([LC_IOP_GET_ACL],
1865 [AC_MSG_CHECKING([inode_operations has .get_acl member function])
1866 LB_LINUX_TRY_COMPILE([
1867 #include <linux/fs.h>
1869 struct inode_operations iop;
1872 AC_DEFINE(HAVE_IOP_GET_ACL, 1,
1873 [inode_operations has .get_acl member function])
1874 AC_MSG_RESULT([yes])
1881 # 3.1.1 has ext4_blocks_for_truncate
1883 AC_DEFUN([LC_BLOCKS_FOR_TRUNCATE],
1884 [AC_MSG_CHECKING([if kernel has ext4_blocks_for_truncate])
1885 LB_LINUX_TRY_COMPILE([
1886 #include <linux/fs.h>
1887 #include "$LINUX/fs/ext4/ext4_jbd2.h"
1888 #include "$LINUX/fs/ext4/truncate.h"
1890 ext4_blocks_for_truncate(NULL);
1892 AC_MSG_RESULT([yes])
1893 AC_DEFINE(HAVE_BLOCKS_FOR_TRUNCATE, 1,
1894 [kernel has ext4_blocks_for_truncate])
1901 # 3.1 introduced generic_file_llseek_size()
1903 AC_DEFUN([LC_FILE_LLSEEK_SIZE],
1904 [LB_CHECK_SYMBOL_EXPORT([generic_file_llseek_size],
1906 [AC_DEFINE(HAVE_FILE_LLSEEK_SIZE, 1,
1907 [generic_file_llseek_size is exported by the kernel])])
1911 # 3.2 request_queue.make_request_fn defined as function returns with void
1912 # see kernel commit 5a7bbad27a410350e64a2d7f5ec18fc73836c14f
1914 AC_DEFUN([LC_HAVE_VOID_MAKE_REQUEST_FN],
1915 [AC_MSG_CHECKING([if request_queue.make_request_fn returns void but not int])
1916 LB_LINUX_TRY_COMPILE([
1917 #include <linux/blkdev.h>
1920 make_request_fn *mrf;
1921 ret = mrf(NULL, NULL);
1925 AC_DEFINE(HAVE_VOID_MAKE_REQUEST_FN, 1,
1926 [request_queue.make_request_fn returns void but not int])
1927 AC_MSG_RESULT([yes])
1932 # 3.2 protects inode->i_nlink from direct modification
1933 # see kernel commit a78ef704a8dd430225955f0709b22d4a6ba21deb
1934 # at the same time adds set_nlink(), so checks set_nlink() for it.
1936 AC_DEFUN([LC_HAVE_PROTECT_I_NLINK],
1937 [AC_MSG_CHECKING([if inode->i_nlink is protected from direct modification])
1938 LB_LINUX_TRY_COMPILE([
1939 #include <linux/fs.h>
1944 AC_DEFINE(HAVE_PROTECT_I_NLINK, 1,
1945 [inode->i_nlink is protected from direct modification])
1946 AC_MSG_RESULT([yes])
1953 # 3.3 introduces migrate_mode.h and migratepage has 4 args
1955 AC_DEFUN([LC_HAVE_MIGRATE_HEADER],
1956 [LB_CHECK_FILE([$LINUX/include/linux/migrate.h],[
1957 AC_DEFINE(HAVE_MIGRATE_H, 1,
1958 [kernel has include/linux/migrate.h])
1959 ],[LB_CHECK_FILE([$LINUX/include/linux/migrate_mode.h],[
1960 AC_DEFINE(HAVE_MIGRATE_MODE_H, 1,
1961 [kernel has include/linux/migrate_mode.h])
1968 AC_DEFUN([LC_MIGRATEPAGE_4ARGS],
1969 [AC_MSG_CHECKING([if address_space_operations.migratepage has 4 args])
1970 LB_LINUX_TRY_COMPILE([
1971 #include <linux/fs.h>
1972 #ifdef HAVE_MIGRATE_H
1973 #include <linux/migrate.h>
1974 #elif defined(HAVE_MIGRATE_MODE_H)
1975 #include <linux/migrate_mode.h>
1978 struct address_space_operations aops;
1980 aops.migratepage(NULL, NULL, NULL, MIGRATE_ASYNC);
1982 AC_DEFINE(HAVE_MIGRATEPAGE_4ARGS, 1,
1983 [address_space_operations.migratepage has 4 args])
1984 AC_MSG_RESULT([yes])
1991 # 3.3 switchs super_operations to use dentry as parameter (but not vfsmount)
1992 # see kernel commit 34c80b1d93e6e20ca9dea0baf583a5b5510d92d4
1994 AC_DEFUN([LC_SUPEROPS_USE_DENTRY],
1995 [AC_MSG_CHECKING([if super_operations use dentry as parameter])
1996 tmp_flags="$EXTRA_KCFLAGS"
1997 EXTRA_KCFLAGS="-Werror"
1998 LB_LINUX_TRY_COMPILE([
1999 #include <linux/fs.h>
2000 int show_options(struct seq_file *seq, struct dentry *root){
2004 struct super_operations ops;
2005 ops.show_options = show_options;
2007 AC_DEFINE(HAVE_SUPEROPS_USE_DENTRY, 1,
2008 [super_operations use dentry as parameter])
2009 AC_MSG_RESULT([yes])
2013 EXTRA_KCFLAGS="$tmp_flags"
2017 # 3.3 switchs inode_operations to use umode_t as parameter (but not int)
2018 # see kernel commit 1a67aafb5f72a436ca044293309fa7e6351d6a35
2020 AC_DEFUN([LC_INODEOPS_USE_UMODE_T],
2021 [AC_MSG_CHECKING([if inode_operations use umode_t as parameter])
2022 tmp_flags="$EXTRA_KCFLAGS"
2023 EXTRA_KCFLAGS="-Werror"
2024 LB_LINUX_TRY_COMPILE([
2025 #include <linux/fs.h>
2026 #include <linux/types.h>
2027 int my_mknod(struct inode *dir, struct dentry *dchild,
2028 umode_t mode, dev_t dev)
2033 struct inode_operations ops;
2034 ops.mknod = my_mknod;
2036 AC_DEFINE(HAVE_INODEOPS_USE_UMODE_T, 1,
2037 [inode_operations use umode_t as parameter])
2038 AC_MSG_RESULT([yes])
2042 EXTRA_KCFLAGS="$tmp_flags"
2045 # 3.4 kmap_atomic removes second argument
2046 # see kernel commit 1ec9c5ddc17aa398f05646abfcbaf315b544e62f
2048 AC_DEFUN([LC_KMAP_ATOMIC_HAS_1ARG],
2049 [AC_MSG_CHECKING([if kmap_atomic has only 1 argument])
2050 LB_LINUX_TRY_COMPILE([
2051 #include <linux/highmem.h>
2055 AC_DEFINE(HAVE_KMAP_ATOMIC_HAS_1ARG, 1,
2056 [have kmap_atomic has only 1 argument])
2057 AC_MSG_RESULT([yes])
2064 # 3.4 switchs touch_atime to struct path
2065 # see kernel commit 68ac1234fb949b66941d94dce4157742799fc581
2067 AC_DEFUN([LC_TOUCH_ATIME_1ARG],
2068 [AC_MSG_CHECKING([if touch_atime use one argument])
2069 LB_LINUX_TRY_COMPILE([
2070 #include <linux/fs.h>
2072 touch_atime((struct path *)NULL);
2074 AC_DEFINE(HAVE_TOUCH_ATIME_1ARG, 1,
2075 [touch_atime use one argument])
2076 AC_MSG_RESULT([yes])
2083 # 3.4 converts d_alloc_root to d_make_root
2084 # see kernel commit 32991ab305ace7017c62f8eecbe5eb36dc32e13b
2086 AC_DEFUN([LC_HAVE_D_MAKE_ROOT],
2087 [AC_MSG_CHECKING([if have d_make_root])
2088 LB_LINUX_TRY_COMPILE([
2089 #include <linux/fs.h>
2091 d_make_root((struct inode *)NULL);
2093 AC_DEFINE(HAVE_D_MAKE_ROOT, 1,
2095 AC_MSG_RESULT([yes])
2102 # 3.5 renames end_writeback() back to clear_inode()...
2103 # see kernel commit dbd5768f87ff6fb0a4fe09c4d7b6c4a24de99430
2105 AC_DEFUN([LC_HAVE_CLEAR_INODE],
2106 [AC_MSG_CHECKING([if have clear_inode])
2107 LB_LINUX_TRY_COMPILE([
2108 #include <linux/fs.h>
2110 clear_inode((struct inode *)NULL);
2112 AC_DEFINE(HAVE_CLEAR_INODE, 1,
2114 AC_MSG_RESULT([yes])
2121 # 3.5 encode_fh has parent inode passed in directly
2122 # see kernel commit b0b0382b
2124 AC_DEFUN([LC_HAVE_ENCODE_FH_PARENT],
2125 [AC_MSG_CHECKING([if encode_fh have parent inode as parameter])
2126 tmp_flags="$EXTRA_KCFLAGS"
2127 EXTRA_KCFLAGS="-Werror"
2128 LB_LINUX_TRY_COMPILE([
2129 #include <linux/exportfs.h>
2130 #include <linux/fs.h>
2131 #include <linux/types.h>
2132 int ll_encode_fh(struct inode *i, __u32 *a, int *b, struct inode *p)
2137 struct export_operations exp_op;
2138 exp_op.encode_fh = ll_encode_fh;
2140 AC_DEFINE(HAVE_ENCODE_FH_PARENT, 1,
2141 [have parent inode as parameter])
2142 AC_MSG_RESULT([yes])
2146 EXTRA_KCFLAGS="$tmp_flags"
2149 # 3.5 has generic_file_llseek_size with 5 args
2150 AC_DEFUN([LC_FILE_LLSEEK_SIZE_5ARG],
2151 [AC_MSG_CHECKING([if kernel has generic_file_llseek_size with 5 args])
2152 LB_LINUX_TRY_COMPILE([
2153 #include <linux/fs.h>
2155 generic_file_llseek_size(NULL, 0, 0, 0, 0);
2157 AC_MSG_RESULT([yes])
2158 AC_DEFINE(HAVE_FILE_LLSEEK_SIZE_5ARGS, 1,
2159 [kernel has generic_file_llseek_size with 5 args])
2166 # 3.6 switch i_dentry/d_alias from list to hlist
2168 AC_DEFUN([LC_HAVE_DENTRY_D_ALIAS_HLIST],
2169 [AC_MSG_CHECKING([if i_dentry/d_alias uses hlist])
2170 tmp_flags="$EXTRA_KCFLAGS"
2171 EXTRA_KCFLAGS="-Werror"
2172 LB_LINUX_TRY_COMPILE([
2173 #include <linux/fs.h>
2174 #include <linux/list.h>
2177 struct dentry dentry;
2178 struct hlist_head head;
2179 struct hlist_node node;
2180 inode.i_dentry = head;
2181 dentry.d_alias = node;
2183 AC_DEFINE(HAVE_DENTRY_D_ALIAS_HLIST, 1,
2184 [have i_dentry/d_alias uses hlist])
2185 AC_MSG_RESULT([yes])
2189 EXTRA_KCFLAGS="$tmp_flags"
2193 # 3.6 dentry_open uses struct path as first argument
2194 # see kernel commit 765927b2
2196 AC_DEFUN([LC_DENTRY_OPEN_USE_PATH],
2197 [AC_MSG_CHECKING([if dentry_open uses struct path as first argument])
2198 tmp_flags="$EXTRA_KCFLAGS"
2199 EXTRA_KCFLAGS="-Werror"
2200 LB_LINUX_TRY_COMPILE([
2201 #include <linux/fs.h>
2202 #include <linux/path.h>
2205 dentry_open(&path, 0, NULL);
2207 AC_DEFINE(HAVE_DENTRY_OPEN_USE_PATH, 1,
2208 [dentry_open uses struct path as first argument])
2209 AC_MSG_RESULT([yes])
2213 EXTRA_KCFLAGS="$tmp_flags"
2217 # 3.6 vfs adds iop->atomic_open
2219 AC_DEFUN([LC_HAVE_IOP_ATOMIC_OPEN],
2220 [AC_MSG_CHECKING([if iop has atomic_open])
2221 LB_LINUX_TRY_COMPILE([
2222 #include <linux/fs.h>
2224 struct inode_operations iop;
2225 iop.atomic_open = NULL;
2227 AC_DEFINE(HAVE_IOP_ATOMIC_OPEN, 1,
2228 [have iop atomic_open])
2229 AC_MSG_RESULT([yes])
2238 # Lustre linux kernel checks
2240 AC_DEFUN([LC_PROG_LINUX],
2244 LC_CONFIG_LIBLUSTRE_RECOVERY
2245 LC_CONFIG_HEALTH_CHECK_WRITE
2246 LC_CONFIG_LRU_RESIZE
2247 LC_LLITE_LLOOP_MODULE
2250 LC_EXPORT_TRUNCATE_COMPLETE
2251 LC_EXPORT_D_REHASH_COND
2252 LC_EXPORT___D_REHASH
2253 LC_EXPORT_NODE_TO_CPUMASK
2269 LC_UMOUNTBEGIN_HAS_VFSMOUNT
2271 #2.6.18 + RHEL5 (fc6)
2279 LC_CANCEL_DIRTY_PAGE
2281 # raid5-zerocopy patch
2285 LC_INVALIDATE_BDEV_2ARG
2286 LC_ASYNC_BLOCK_CIPHER
2288 LC_STRUCT_BLKCIPHER_DESC
2289 LC_FS_RENAME_DOES_D_MOVE
2292 LC_UNREGISTER_BLKDEV_RETURN_INT
2293 LC_KERNEL_SPLICE_READ
2298 LC_EXPORTFS_DECODE_FH
2308 LC_FS_STRUCT_USE_PATH
2311 LC_SECURITY_PLUG # for SLES10 SP2
2312 LC_PGMKWRITE_USE_VMFAULT
2313 LC_PGMKWRITE_COMPACT
2314 LC_INODE_PERMISION_2ARGS
2316 LC_READ_INODE_IN_SBOPS
2317 LC_EXPORT_INODE_PERMISSION
2323 # 2.6.27.15-2 sles11
2327 LC_SB_ANY_QUOTA_ACTIVE
2328 LC_SB_HAS_QUOTA_ACTIVE
2329 LC_EXPORT_ADD_TO_PAGE_CACHE_LRU
2332 LC_SB_ANY_QUOTA_LOADED
2335 LC_EXPORT_CPUMASK_OF_NODE
2338 LC_BLK_QUEUE_LOG_BLK_SIZE
2341 LC_REQUEST_QUEUE_LIMITS
2342 LC_EXPORT_BDI_REGISTER
2344 LC_BLK_QUEUE_MAX_SECTORS
2345 LC_BLK_QUEUE_MAX_SEGMENTS
2348 LC_EXPORT_GENERIC_ERROR_REMOVE_PAGE
2349 LC_SELINUX_IS_ENABLED
2350 LC_EXPORT_ACCESS_PROCESS_VM
2351 LC_VFS_INODE_NEWSIZE_OK
2354 LC_HAVE_DQUOT_FS_DISK_QUOTA
2355 LC_HAVE_DQUOT_SUSPEND
2359 LC_EXPORT_SIMPLE_SETATTR
2363 LC_SBOPS_EVICT_INODE
2369 LC_BLKDEV_GET_BY_DEV
2370 LC_GENERIC_PERMISSION
2371 LC_QUOTA_ON_USE_PATH
2377 LC_REQUEST_QUEUE_UNPLUG_FN
2378 LC_HAVE_FSTYPE_MOUNT
2381 LC_DIRTY_INODE_WITH_FLAG
2384 LC_LM_XXX_LOCK_MANAGER_OPS
2390 LC_BLOCKS_FOR_TRUNCATE
2393 LC_HAVE_VOID_MAKE_REQUEST_FN
2394 LC_HAVE_PROTECT_I_NLINK
2397 LC_HAVE_MIGRATE_HEADER
2398 LC_MIGRATEPAGE_4ARGS
2399 LC_SUPEROPS_USE_DENTRY
2400 LC_INODEOPS_USE_UMODE_T
2405 LC_KMAP_ATOMIC_HAS_1ARG
2409 LC_HAVE_ENCODE_FH_PARENT
2410 LC_FILE_LLSEEK_SIZE_5ARG
2413 LC_HAVE_DENTRY_D_ALIAS_HLIST
2414 LC_DENTRY_OPEN_USE_PATH
2415 LC_HAVE_IOP_ATOMIC_OPEN
2418 if test x$enable_server = xyes ; then
2419 AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
2420 LC_FUNC_DEV_SET_RDONLY
2428 # LC_CONFIG_CLIENT_SERVER
2430 # Build client/server sides of Lustre
2432 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
2433 [AC_MSG_CHECKING([whether to build Lustre server support])
2434 AC_ARG_ENABLE([server],
2435 AC_HELP_STRING([--disable-server],
2436 [disable Lustre server support]),
2437 [],[enable_server='yes'])
2438 AC_MSG_RESULT([$enable_server])
2440 AC_MSG_CHECKING([whether to build Lustre client support])
2441 AC_ARG_ENABLE([client],
2442 AC_HELP_STRING([--disable-client],
2443 [disable Lustre client support]),
2444 [],[enable_client='yes'])
2445 AC_MSG_RESULT([$enable_client])])
2448 # LC_CONFIG_LIBLUSTRE
2450 # whether to build liblustre
2452 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
2453 [AC_MSG_CHECKING([whether to build Lustre library])
2454 AC_ARG_ENABLE([liblustre],
2455 AC_HELP_STRING([--disable-liblustre],
2456 [disable building of Lustre library]),
2457 [],[enable_liblustre=$with_sysio])
2458 AC_MSG_RESULT([$enable_liblustre])
2459 # only build sysio if liblustre is built
2460 with_sysio="$enable_liblustre"
2462 AC_MSG_CHECKING([whether to build liblustre tests])
2463 AC_ARG_ENABLE([liblustre-tests],
2464 AC_HELP_STRING([--enable-liblustre-tests],
2465 [enable liblustre tests, if --disable-tests is used]),
2466 [],[enable_liblustre_tests=$enable_tests])
2467 if test x$enable_liblustre != xyes ; then
2468 enable_liblustre_tests='no'
2470 AC_MSG_RESULT([$enable_liblustre_tests])
2472 AC_MSG_CHECKING([whether to enable liblustre acl])
2473 AC_ARG_ENABLE([liblustre-acl],
2474 AC_HELP_STRING([--disable-liblustre-acl],
2475 [disable ACL support for liblustre]),
2476 [],[enable_liblustre_acl=yes])
2477 AC_MSG_RESULT([$enable_liblustre_acl])
2478 if test x$enable_liblustre_acl = xyes ; then
2479 AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
2482 # 2.6.29 change prepare/commit_write to write_begin/end
2483 AC_DEFUN([LC_WRITE_BEGIN_END],
2484 [AC_MSG_CHECKING([if kernel has .write_begin/end])
2485 LB_LINUX_TRY_COMPILE([
2486 #include <linux/fs.h>
2487 #include <linux/pagemap.h>
2488 #ifdef HAVE_LINUX_MMTYPES_H
2489 #include <linux/mm_types.h>
2492 struct address_space_operations aops;
2495 aops.write_begin = NULL;
2496 aops.write_end = NULL;
2497 page = grab_cache_page_write_begin(NULL, 0, 0);
2499 AC_MSG_RESULT([yes])
2500 AC_DEFINE(HAVE_KERNEL_WRITE_BEGIN_END, 1,
2501 [kernel has .write_begin/end])
2507 # 2.6.29 blkdev_put has 2 arguments
2508 AC_DEFUN([LC_BLKDEV_PUT_2ARGS],
2509 [AC_MSG_CHECKING([blkdev_put needs 2 parameters])
2510 LB_LINUX_TRY_COMPILE([
2511 #include <linux/fs.h>
2513 blkdev_put(NULL, 0);
2515 AC_DEFINE(HAVE_BLKDEV_PUT_2ARGS, 1,
2516 [blkdev_put needs 2 paramters])
2517 AC_MSG_RESULT([yes])
2523 # 2.6.29 dentry_open has 4 arguments
2524 AC_DEFUN([LC_DENTRY_OPEN_4ARGS],
2525 [AC_MSG_CHECKING([dentry_open needs 4 parameters])
2526 LB_LINUX_TRY_COMPILE([
2527 #include <linux/fs.h>
2529 dentry_open(NULL, NULL, 0, NULL);
2531 AC_DEFINE(HAVE_DENTRY_OPEN_4ARGS, 1,
2532 [dentry_open needs 4 paramters])
2533 AC_MSG_RESULT([yes])
2539 # 2.6.29 split file and anonymous page queues
2540 AC_DEFUN([LC_PAGEVEC_LRU_ADD_FILE],
2541 [AC_MSG_CHECKING([if kernel has .pagevec_lru_add_file])
2542 LB_LINUX_TRY_COMPILE([
2543 #include <linux/mm.h>
2544 #include <linux/pagevec.h>
2546 struct pagevec lru_pagevec;
2548 pagevec_init(&lru_pagevec, 0);
2549 pagevec_lru_add_file(&lru_pagevec);
2551 AC_MSG_RESULT([yes])
2552 AC_DEFINE(HAVE_PAGEVEC_LRU_ADD_FILE, 1,
2553 [kernel has .pagevec_lru_add_file])
2562 AC_ARG_ENABLE(mpitests,
2563 AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
2564 [include mpi tests]),
2575 MPICC_WRAPPER=$enableval
2585 if test x$enable_mpitests != xno; then
2586 AC_MSG_CHECKING([whether mpitests can be built])
2594 MPI_Initialized(&flag);
2597 AC_MSG_RESULT([yes])
2604 AC_SUBST(MPICC_WRAPPER)
2606 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
2607 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
2610 LC_CONFIG_LIBLUSTRE_RECOVERY
2616 # whether to enable quota support global control
2618 AC_DEFUN([LC_CONFIG_QUOTA],
2619 [AC_ARG_ENABLE([quota],
2620 AC_HELP_STRING([--enable-quota],
2621 [enable quota support]),
2622 [],[enable_quota='yes'])
2625 AC_DEFUN([LC_QUOTA],
2629 AC_CHECK_HEADER(sys/quota.h,
2630 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
2631 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
2637 # whether to enable split support
2639 AC_DEFUN([LC_CONFIG_SPLIT],
2640 [AC_MSG_CHECKING([whether to enable split support])
2641 AC_ARG_ENABLE([split],
2642 AC_HELP_STRING([--enable-split],
2643 [enable split support]),
2644 [],[enable_split='no'])
2645 AC_MSG_RESULT([$enable_split])
2646 if test x$enable_split != xno; then
2647 AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
2651 # RHEL5(2.6.18) has tux_info
2652 AC_DEFUN([LC_TASK_CLENV_TUX_INFO],
2653 [AC_MSG_CHECKING([tux_info])
2654 LB_LINUX_TRY_COMPILE([
2655 #include <linux/sched.h>
2657 struct task_struct task;
2660 AC_MSG_RESULT([yes])
2661 AC_DEFINE(LL_TASK_CL_ENV, tux_info, [have tux_info])
2662 have_task_clenv_store='yes'
2669 # LC_LLITE_LLOOP_MODULE
2670 # lloop_llite.ko does not currently work with page sizes
2673 AC_DEFUN([LC_LLITE_LLOOP_MODULE],
2674 [AC_MSG_CHECKING([whether to enable llite_lloop module])
2675 LB_LINUX_TRY_COMPILE([
2676 #include <asm/page.h>
2678 #if PAGE_SIZE >= 65536
2679 #error "PAGE_SIZE >= 65536"
2682 enable_llite_lloop_module='yes'
2683 AC_MSG_RESULT([yes])
2685 enable_llite_lloop_module='no'
2693 # configure support for optional OSD implementation
2695 AC_DEFUN([LC_OSD_ADDON],
2696 [AC_MSG_CHECKING([for osd])
2698 AC_HELP_STRING([--with-osd=path],
2699 [set path to optional osd]),
2702 no) ENABLEOSDADDON=0
2704 *) OSDADDON="${with_osd}"
2711 if test $ENABLEOSDADDON -eq 0; then
2715 OSDMODNAME=`basename $OSDADDON`
2716 if test -e $LUSTRE/$OSDMODNAME; then
2717 AC_MSG_RESULT([can't link])
2719 elif ln -s $OSDADDON $LUSTRE/$OSDMODNAME; then
2720 AC_MSG_RESULT([$OSDMODNAME])
2721 OSDADDON="subdir-m += $OSDMODNAME"
2723 AC_MSG_RESULT([can't link])
2733 # other configure checks
2735 AC_DEFUN([LC_CONFIGURE],
2736 [LC_CONFIG_OBD_BUFFER_SIZE
2738 if test $target_cpu == "i686" -o $target_cpu == "x86_64"; then
2739 CFLAGS="$CFLAGS -Werror"
2742 # maximum MDS thread count
2745 # include/liblustre.h
2746 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
2748 # liblustre/llite_lib.h
2749 AC_CHECK_HEADERS([xtio.h file.h])
2752 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
2755 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
2756 AC_CHECK_FUNCS([inet_ntoa])
2758 # libsysio/src/readlink.c
2761 # lvfs/prng.c - depends on linux/types.h from liblustre/dir.c
2762 AC_CHECK_HEADERS([linux/random.h], [], [],
2763 [#ifdef HAVE_LINUX_TYPES_H
2764 # include <linux/types.h>
2769 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
2771 # check for -lz support
2775 [AC_CHECK_HEADERS([zlib.h],
2777 AC_DEFINE([HAVE_ADLER], 1,
2778 [support alder32 checksum type])],
2779 [AC_MSG_WARN([No zlib-devel package found,
2780 unable to use adler32 checksum])])],
2781 [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
2786 AC_ARG_ENABLE([mindf],
2787 AC_HELP_STRING([--enable-mindf],
2788 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
2790 if test "$enable_mindf" = "yes" ; then
2791 AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
2794 AC_ARG_ENABLE([fail_alloc],
2795 AC_HELP_STRING([--disable-fail-alloc],
2796 [disable randomly alloc failure]),
2797 [],[enable_fail_alloc=yes])
2798 AC_MSG_CHECKING([whether to randomly failing memory alloc])
2799 AC_MSG_RESULT([$enable_fail_alloc])
2800 if test x$enable_fail_alloc != xno ; then
2801 AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
2804 AC_ARG_ENABLE([invariants],
2805 AC_HELP_STRING([--enable-invariants],
2806 [enable invariant checking (cpu intensive)]),
2808 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
2809 AC_MSG_RESULT([$enable_invariants])
2810 if test x$enable_invariants = xyes ; then
2811 AC_DEFINE([INVARIANT_CHECK], 1, [enable invariant checking])
2814 AC_ARG_ENABLE([lu_ref],
2815 AC_HELP_STRING([--enable-lu_ref],
2816 [enable lu_ref reference tracking code]),
2818 AC_MSG_CHECKING([whether to track references with lu_ref])
2819 AC_MSG_RESULT([$enable_lu_ref])
2820 if test x$enable_lu_ref = xyes ; then
2821 AC_DEFINE([USE_LU_REF], 1, [enable lu_ref reference tracking code])
2824 AC_ARG_ENABLE([pgstate-track],
2825 AC_HELP_STRING([--enable-pgstate-track],
2826 [enable page state tracking]),
2827 [enable_pgstat_track='yes'],[])
2828 AC_MSG_CHECKING([whether to enable page state tracking])
2829 AC_MSG_RESULT([$enable_pgstat_track])
2830 if test x$enable_pgstat_track = xyes ; then
2831 AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
2832 [enable page state tracking code])
2839 LC_DENTRY_OPEN_4ARGS
2840 LC_PAGEVEC_LRU_ADD_FILE
2847 # AM_CONDITIONALS for lustre
2849 AC_DEFUN([LC_CONDITIONALS],
2850 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
2851 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
2852 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
2853 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
2854 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
2855 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
2856 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
2857 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
2858 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
2859 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
2860 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
2861 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
2862 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
2863 AM_CONDITIONAL(LLITE_LLOOP, test x$enable_llite_lloop_module = xyes)
2869 # files that should be generated with AC_OUTPUT
2871 AC_DEFUN([LC_CONFIG_FILES],
2875 lustre/autoconf/Makefile
2876 lustre/conf/Makefile
2877 lustre/contrib/Makefile
2879 lustre/include/Makefile
2880 lustre/include/lustre_ver.h
2881 lustre/include/linux/Makefile
2882 lustre/include/darwin/Makefile
2883 lustre/include/lustre/Makefile
2884 lustre/kernel_patches/targets/2.6-rhel6.target
2885 lustre/kernel_patches/targets/2.6-rhel5.target
2886 lustre/kernel_patches/targets/2.6-sles10.target
2887 lustre/kernel_patches/targets/2.6-sles11.target
2888 lustre/kernel_patches/targets/3.0-sles11.target
2889 lustre/kernel_patches/targets/2.6-oel5.target
2890 lustre/kernel_patches/targets/2.6-fc11.target
2891 lustre/kernel_patches/targets/2.6-fc12.target
2892 lustre/kernel_patches/targets/2.6-fc15.target
2893 lustre/kernel_patches/targets/3.x-fc18.target
2894 lustre/ldlm/Makefile
2896 lustre/fid/autoMakefile
2897 lustre/liblustre/Makefile
2898 lustre/liblustre/tests/Makefile
2899 lustre/liblustre/tests/mpi/Makefile
2900 lustre/llite/Makefile
2901 lustre/llite/autoMakefile
2902 lustre/lclient/Makefile
2904 lustre/lov/autoMakefile
2905 lustre/lvfs/Makefile
2906 lustre/lvfs/autoMakefile
2908 lustre/mdc/autoMakefile
2910 lustre/lmv/autoMakefile
2912 lustre/mdt/autoMakefile
2914 lustre/mdd/autoMakefile
2916 lustre/fld/autoMakefile
2917 lustre/obdclass/Makefile
2918 lustre/obdclass/autoMakefile
2919 lustre/obdclass/linux/Makefile
2920 lustre/obdecho/Makefile
2921 lustre/obdecho/autoMakefile
2923 lustre/ofd/autoMakefile
2925 lustre/osc/autoMakefile
2927 lustre/ost/autoMakefile
2928 lustre/osd-ldiskfs/Makefile
2929 lustre/osd-ldiskfs/autoMakefile
2930 lustre/osd-zfs/Makefile
2931 lustre/osd-zfs/autoMakefile
2933 lustre/mgc/autoMakefile
2935 lustre/mgs/autoMakefile
2936 lustre/target/Makefile
2937 lustre/ptlrpc/Makefile
2938 lustre/ptlrpc/autoMakefile
2939 lustre/ptlrpc/gss/Makefile
2940 lustre/ptlrpc/gss/autoMakefile
2941 lustre/quota/Makefile
2942 lustre/quota/autoMakefile
2943 lustre/scripts/Makefile
2944 lustre/tests/Makefile
2945 lustre/tests/mpi/Makefile
2946 lustre/utils/Makefile
2947 lustre/utils/gss/Makefile
2949 lustre/osp/autoMakefile
2951 lustre/lod/autoMakefile
2952 lustre/obdclass/darwin/Makefile