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
23 rootsbindir='$(CROSS_PATH)/sbin'
26 demodir='$(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(CONFIG_LUSTRE_OBD_MAX_IOCTL_BUFFER, $OBD_BUFFER_SIZE, [IOCTL Buffer Size])
71 AC_DEFUN([LC_READLINK_SSIZE_T],
72 [AC_MSG_CHECKING([if readlink returns ssize_t])
76 ssize_t readlink(const char *, char *, size_t);
79 AC_DEFINE(HAVE_POSIX_1003_READLINK, 1, [readlink returns ssize_t])
86 # LC_FUNC_DEV_SET_RDONLY
88 # check whether dev_set_rdonly is exported. This is needed until we
89 # have another mechanism to fence IO from the underlying device.
91 AC_DEFUN([LC_FUNC_DEV_SET_RDONLY],
92 [LB_CHECK_SYMBOL_EXPORT([dev_set_rdonly],
93 [block/ll_rw_block.c,block/blk-core.c],[
94 AC_DEFINE(HAVE_DEV_SET_RDONLY, 1, [kernel exports dev_set_rdonly])
96 AC_MSG_WARN([kernel missing dev_set_rdonly patch for testing])
101 # Ensure stack size big than 8k in Lustre server (all kernels)
103 AC_DEFUN([LC_STACK_SIZE],
104 [AC_MSG_CHECKING([stack size big than 8k])
105 LB_LINUX_TRY_COMPILE([
106 #include <linux/thread_info.h>
108 #if THREAD_SIZE < 8192
109 #error "stack size < 8192"
114 AC_MSG_ERROR([Lustre requires that Linux is configured with at least a 8KB stack.])
119 # Allow the user to set the MDS thread upper limit
121 AC_DEFUN([LC_MDS_MAX_THREADS],
123 AC_ARG_WITH([mds_max_threads],
124 AC_HELP_STRING([--with-mds-max-threads=count],
125 [maximum threads available on the MDS: (default=512)]),
127 MDS_THREAD_COUNT=$with_mds_max_threads
128 AC_DEFINE_UNQUOTED(MDS_MAX_THREADS, $MDS_THREAD_COUNT, [maximum number of MDS threads])
135 # the pinger is temporary, until we have the recovery node in place
137 AC_DEFUN([LC_CONFIG_PINGER],
138 [AC_MSG_CHECKING([whether to enable pinger support])
139 AC_ARG_ENABLE([pinger],
140 AC_HELP_STRING([--disable-pinger],
141 [disable recovery pinger support]),
142 [],[enable_pinger='yes'])
143 AC_MSG_RESULT([$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([$LINUX/include/linux/bit_spinlock.h],[
301 AC_MSG_CHECKING([if bit_spinlock.h can be compiled])
302 LB_LINUX_TRY_COMPILE([
303 #include <asm/processor.h>
304 #include <linux/spinlock.h>
305 #include <linux/bit_spinlock.h>
308 AC_DEFINE(HAVE_BIT_SPINLOCK_H, 1, [Kernel has bit_spinlock.h])
319 AC_DEFUN([LC_CAPA_CRYPTO],
320 [LB_LINUX_CONFIG_IM([CRYPTO],[],[
321 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])
323 LB_LINUX_CONFIG_IM([CRYPTO_HMAC],[],[
324 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])
326 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],[
327 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])
332 # LC_CONFIG_RMTCLIENT
335 dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
337 AC_DEFUN([LC_CONFIG_RMTCLIENT],
338 [LB_LINUX_CONFIG_IM([CRYPTO_AES],[],[
339 AC_MSG_WARN([Lustre remote client require that CONFIG_CRYPTO_AES is enabled in your kernel.])
344 # LC_CONFIG_GSS_KEYRING (default enabled, if gss is enabled)
346 AC_DEFUN([LC_CONFIG_GSS_KEYRING],
347 [AC_MSG_CHECKING([whether to enable gss keyring backend])
348 AC_ARG_ENABLE([gss_keyring],
349 [AC_HELP_STRING([--disable-gss-keyring],
350 [disable gss keyring backend])],
351 [],[enable_gss_keyring='yes'])
352 AC_MSG_RESULT([$enable_gss_keyring])
354 if test x$enable_gss_keyring != xno; then
355 LB_LINUX_CONFIG_IM([KEYS],[],
356 [AC_MSG_ERROR([GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.])])
358 AC_CHECK_LIB([keyutils], [keyctl_search], [],
359 [AC_MSG_ERROR([libkeyutils is not found, which is required by gss keyring backend])],)
361 AC_DEFINE([HAVE_GSS_KEYRING], [1],
362 [Define this if you enable gss keyring backend])
366 AC_DEFUN([LC_CONFIG_SUNRPC],
367 [LB_LINUX_CONFIG_IM([SUNRPC],[],
368 [AC_MSG_ERROR([kernel SUNRPC support is required by using GSS.])])
372 # LC_CONFIG_GSS (default disabled)
374 # Build gss and related tools of Lustre. Currently both kernel and user space
375 # parts are depend on linux platform.
377 AC_DEFUN([LC_CONFIG_GSS],
378 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
380 [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
381 [],[enable_gss='no'])
382 AC_MSG_RESULT([$enable_gss])
384 if test x$enable_gss == xyes; then
385 LC_CONFIG_GSS_KEYRING
388 AC_DEFINE([HAVE_GSS], [1], [Define this if you enable gss])
390 LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
391 [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
392 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
393 [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
394 LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
395 [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
396 LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
397 [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
399 AC_CHECK_LIB([gssapi], [gss_export_lucid_sec_context],
400 [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"],
401 [AC_CHECK_LIB([gssglue], [gss_export_lucid_sec_context],
402 [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue"],
403 [AC_MSG_ERROR([libgssapi or libgssglue is not found, which is required by GSS.])])],)
405 AC_SUBST(GSSAPI_LIBS)
411 AC_DEFUN([LC_TASK_CLENV_STORE],
413 AC_MSG_CHECKING([if we can store cl_env in task_struct])
414 if test x$have_task_clenv_store != xyes ; then
415 LC_TASK_CLENV_TUX_INFO
421 # ~2.6.12 merge patch from oracle to convert tree_lock from spinlock to rwlock
422 # yet tree_lock is converted from rwlock to spin_lock since v2.6.26
423 AC_DEFUN([LC_RW_TREE_LOCK],
424 [AC_MSG_CHECKING([if kernel has tree_lock as rwlock])
425 tmp_flags="$EXTRA_KCFLAGS"
426 EXTRA_KCFLAGS="-Werror"
427 LB_LINUX_TRY_COMPILE([
428 #include <linux/fs.h>
430 struct address_space a;
432 write_lock(&a.tree_lock);
435 AC_DEFINE(HAVE_RW_TREE_LOCK, 1, [kernel has tree_lock as rw_lock])
439 EXTRA_KCFLAGS="$tmp_flags"
444 # LC_UMOUNTBEGIN_HAS_VFSMOUNT
445 # 2.6.18~2.6.25 umount_begin has different parameters
446 AC_DEFUN([LC_UMOUNTBEGIN_HAS_VFSMOUNT],
447 [AC_MSG_CHECKING([if umount_begin needs vfsmount parameter instead of super_block])
448 tmp_flags="$EXTRA_KCFLAGS"
449 EXTRA_KCFLAGS="-Werror"
450 LB_LINUX_TRY_COMPILE([
451 #include <linux/fs.h>
454 static void cfg_umount_begin (struct vfsmount *v, int flags)
459 static struct super_operations cfg_super_operations = {
460 .umount_begin = cfg_umount_begin,
463 cfg_super_operations.umount_begin(NULL,0);
466 AC_DEFINE(HAVE_UMOUNTBEGIN_VFSMOUNT, 1,
467 [Define umount_begin need second argument])
471 EXTRA_KCFLAGS="$tmp_flags"
474 #2.6.18 + RHEL5 (fc6)
479 # fiemap.h is added since v2.6.28
480 # RHEL5 2.6.18 has it, while SLES10 2.6.27 does not
482 AC_DEFUN([LC_LINUX_FIEMAP_H],
483 [LB_CHECK_FILE([$LINUX/include/linux/fiemap.h],[
484 AC_MSG_CHECKING([if fiemap.h can be compiled])
485 LB_LINUX_TRY_COMPILE([
486 #include <linux/types.h>
487 #include <linux/fiemap.h>
490 AC_DEFINE(HAVE_LINUX_FIEMAP_H, 1, [Kernel has fiemap.h])
501 # 2.6.19 replaced writev with aio_write
502 AC_DEFUN([LC_FILE_WRITEV],
503 [AC_MSG_CHECKING([writev in fops])
504 LB_LINUX_TRY_COMPILE([
505 #include <linux/fs.h>
507 struct file_operations *fops = NULL;
511 AC_DEFINE(HAVE_FILE_WRITEV, 1,
519 # 2.6.19 replaced readv with aio_read
520 AC_DEFUN([LC_FILE_READV],
521 [AC_MSG_CHECKING([readv in fops])
522 LB_LINUX_TRY_COMPILE([
523 #include <linux/fs.h>
525 struct file_operations *fops = NULL;
529 AC_DEFINE(HAVE_FILE_READV, 1,
538 # LC_CANCEL_DIRTY_PAGE
539 # 2.6.20 introduced cancel_dirty_page instead of clear_page_dirty.
540 AC_DEFUN([LC_CANCEL_DIRTY_PAGE],
541 [AC_MSG_CHECKING([kernel has cancel_dirty_page])
542 # the implementation of cancel_dirty_page in OFED 1.4.1's SLES10 SP2
543 # backport is broken, so ignore it
544 if test -f $OFED_BACKPORT_PATH/linux/mm.h &&
545 test "$(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
548 LB_LINUX_TRY_COMPILE([
549 #include <linux/mm.h>
550 #include <linux/page-flags.h>
552 cancel_dirty_page(NULL, 0);
555 AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
556 [kernel has cancel_dirty_page instead of clear_page_dirty])
563 # raid5-zerocopy patch
568 # In order to support raid5 zerocopy patch, we have to patch the kernel to make
569 # it support constant page, which means the page won't be modified during the
572 AC_DEFUN([LC_PAGE_CONSTANT],
573 [AC_MSG_CHECKING([if kernel have PageConstant defined])
574 LB_LINUX_TRY_COMPILE([
575 #include <linux/mm.h>
576 #include <linux/page-flags.h>
579 #error "Have no raid5 zcopy patch"
583 AC_DEFINE(HAVE_PAGE_CONSTANT, 1, [kernel have PageConstant supported])
591 # 2.6.22 lost second parameter for invalidate_bdev
592 AC_DEFUN([LC_INVALIDATE_BDEV_2ARG],
593 [AC_MSG_CHECKING([if invalidate_bdev has second argument])
594 LB_LINUX_TRY_COMPILE([
595 #include <linux/buffer_head.h>
597 invalidate_bdev(NULL,0);
600 AC_DEFINE(HAVE_INVALIDATE_BDEV_2ARG, 1,
601 [invalidate_bdev has second argument])
608 # check for crypto API
610 AC_DEFUN([LC_ASYNC_BLOCK_CIPHER],
611 [AC_MSG_CHECKING([if kernel has block cipher support])
612 LB_LINUX_TRY_COMPILE([
613 #include <linux/err.h>
614 #include <linux/crypto.h>
616 struct crypto_blkcipher *tfm;
617 tfm = crypto_alloc_blkcipher("aes", 0, sizeof(tfm) );
620 AC_DEFINE(HAVE_ASYNC_BLOCK_CIPHER, 1, [kernel has block cipher support])
627 # check for struct hash_desc
629 AC_DEFUN([LC_STRUCT_HASH_DESC],
630 [AC_MSG_CHECKING([if kernel has struct hash_desc])
631 LB_LINUX_TRY_COMPILE([
632 #include <linux/err.h>
633 #include <linux/crypto.h>
635 struct hash_desc foo __attribute__ ((unused));
638 AC_DEFINE(HAVE_STRUCT_HASH_DESC, 1, [kernel has struct hash_desc])
645 # check for struct blkcipher_desc
647 AC_DEFUN([LC_STRUCT_BLKCIPHER_DESC],
648 [AC_MSG_CHECKING([if kernel has struct blkcipher_desc])
649 LB_LINUX_TRY_COMPILE([
650 #include <linux/err.h>
651 #include <linux/crypto.h>
653 struct blkcipher_desc foo __attribute__ ((unused));
656 AC_DEFINE(HAVE_STRUCT_BLKCIPHER_DESC, 1, [kernel has struct blkcipher_desc])
663 # 2.6.19 check for FS_RENAME_DOES_D_MOVE flag
665 AC_DEFUN([LC_FS_RENAME_DOES_D_MOVE],
666 [AC_MSG_CHECKING([if kernel has FS_RENAME_DOES_D_MOVE flag])
667 LB_LINUX_TRY_COMPILE([
668 #include <linux/fs.h>
670 int v __attribute__ ((unused));
671 v = FS_RENAME_DOES_D_MOVE;
674 AC_DEFINE(HAVE_FS_RENAME_DOES_D_MOVE, 1, [kernel has FS_RENAME_DOES_D_MOVE flag])
682 # 2.6.23 have return type 'void' for unregister_blkdev
683 AC_DEFUN([LC_UNREGISTER_BLKDEV_RETURN_INT],
684 [AC_MSG_CHECKING([if unregister_blkdev return int])
685 LB_LINUX_TRY_COMPILE([
686 #include <linux/fs.h>
688 int i __attribute__ ((unused));
689 i = unregister_blkdev(0,NULL);
692 AC_DEFINE(HAVE_UNREGISTER_BLKDEV_RETURN_INT, 1,
693 [unregister_blkdev return int])
699 # 2.6.23 change .sendfile to .splice_read
700 AC_DEFUN([LC_KERNEL_SPLICE_READ],
701 [AC_MSG_CHECKING([if kernel has .splice_read])
702 LB_LINUX_TRY_COMPILE([
703 #include <linux/fs.h>
705 struct file_operations file;
707 file.splice_read = NULL;
710 AC_DEFINE(HAVE_KERNEL_SPLICE_READ, 1,
711 [kernel has .slice_read])
717 # 2.6.23 change .sendfile to .splice_read
718 # RHEL4 (-92 kernel) have both sendfile and .splice_read API
719 AC_DEFUN([LC_KERNEL_SENDFILE],
720 [AC_MSG_CHECKING([if kernel has .sendfile])
721 LB_LINUX_TRY_COMPILE([
722 #include <linux/fs.h>
724 struct file_operations file;
726 file.sendfile = NULL;
729 AC_DEFINE(HAVE_KERNEL_SENDFILE, 1,
730 [kernel has .sendfile])
736 # 2.6.23 extract nfs export related data into exportfs.h
737 AC_DEFUN([LC_HAVE_EXPORTFS_H],
738 [LB_CHECK_FILE([$LINUX/include/linux/exportfs.h], [
739 AC_DEFINE(HAVE_LINUX_EXPORTFS_H, 1,
740 [kernel has include/exportfs.h])
746 # 2.6.23 has new page fault handling API
747 AC_DEFUN([LC_VM_OP_FAULT],
748 [AC_MSG_CHECKING([kernel has .fault in vm_operation_struct])
749 LB_LINUX_TRY_COMPILE([
750 #include <linux/mm.h>
752 struct vm_operations_struct op;
757 AC_DEFINE(HAVE_VM_OP_FAULT, 1,
758 [kernel has .fault in vm_operation_struct])
764 # 2.6.23 add code to wait other users to complete before removing procfs entry
765 AC_DEFUN([LC_PROCFS_USERS],
766 [AC_MSG_CHECKING([if kernel has pde_users member in procfs entry struct])
767 LB_LINUX_TRY_COMPILE([
768 #include <linux/proc_fs.h>
770 struct proc_dir_entry pde;
775 AC_DEFINE(HAVE_PROCFS_USERS, 1,
776 [kernel has pde_users member in procfs entry struct])
778 LB_LINUX_TRY_COMPILE([
779 #include "$LINUX/fs/proc/internal.h"
781 struct proc_dir_entry_aux pde_aux;
783 pde_aux.pde_users = 0;
786 AC_DEFINE(HAVE_PROCFS_USERS, 1,
787 [kernel has pde_users member in proc_dir_entry_aux])
794 # 2.6.23 exports exportfs_decode_fh
795 AC_DEFUN([LC_EXPORTFS_DECODE_FH],
796 [LB_CHECK_SYMBOL_EXPORT([exportfs_decode_fh],
797 [fs/exportfs/expfs.c],[
798 AC_DEFINE(HAVE_EXPORTFS_DECODE_FH, 1,
799 [exportfs_decode_fh has been export])
806 # 2.6.24 need linux/mm_types.h included
807 AC_DEFUN([LC_HAVE_MMTYPES_H],
808 [LB_CHECK_FILE([$LINUX/include/linux/mm_types.h], [
809 AC_DEFINE(HAVE_LINUX_MMTYPES_H, 1,
810 [kernel has include/mm_types.h])
816 # 2.6.24 has bio_endio with 2 args
817 AC_DEFUN([LC_BIO_ENDIO_2ARG],
818 [AC_MSG_CHECKING([if kernel has bio_endio with 2 args])
819 LB_LINUX_TRY_COMPILE([
820 #include <linux/bio.h>
825 AC_DEFINE(HAVE_BIO_ENDIO_2ARG, 1,
826 [kernel has bio_endio with 2 args])
832 # 2.6.24 has new members in exports struct.
833 AC_DEFUN([LC_FH_TO_DENTRY],
834 [AC_MSG_CHECKING([if kernel has .fh_to_dentry member in export_operations struct])
835 LB_LINUX_TRY_COMPILE([
836 #include <linux/fs.h>
837 #ifdef HAVE_LINUX_EXPORTFS_H
838 #include <linux/exportfs.h>
841 do{ }while(sizeof(((struct export_operations *)0)->fh_to_dentry));
844 AC_DEFINE(HAVE_FH_TO_DENTRY, 1,
845 [kernel has .fh_to_dentry member in export_operations struct])
851 # 2.6.24 removes long aged procfs entry -> deleted member
852 AC_DEFUN([LC_PROCFS_DELETED],
853 [AC_MSG_CHECKING([if kernel has deleted member in procfs entry struct])
854 LB_LINUX_TRY_COMPILE([
855 #include <linux/proc_fs.h>
857 struct proc_dir_entry pde;
859 pde.deleted = sizeof(pde);
862 AC_DEFINE(HAVE_PROCFS_DELETED, 1,
863 [kernel has deleted member in procfs entry struct])
869 # 2.6.24 has bdi_init()/bdi_destroy() functions.
870 AC_DEFUN([LC_EXPORT_BDI_INIT],
871 [LB_CHECK_SYMBOL_EXPORT([bdi_init],
873 AC_DEFINE(HAVE_BDI_INIT, 1,
874 [bdi_init/bdi_destroy functions are present])
881 # 2.6.26 isn't export set_fs_pwd and change paramter in fs struct
882 AC_DEFUN([LC_FS_STRUCT_USE_PATH],
883 [AC_MSG_CHECKING([fs_struct use path structure])
884 LB_LINUX_TRY_COMPILE([
885 #include <asm/atomic.h>
886 #include <linux/spinlock.h>
887 #include <linux/fs_struct.h>
891 fs.pwd = *((struct path *)sizeof(fs));
894 AC_DEFINE(HAVE_FS_STRUCT_USE_PATH, 1,
895 [fs_struct use path structure])
905 # LC_SECURITY_PLUG # for SLES10 SP2 (2.6.27)
906 # check security plug in sles10 sp2 kernel
907 AC_DEFUN([LC_SECURITY_PLUG],
908 [AC_MSG_CHECKING([If kernel has security plug support])
909 LB_LINUX_TRY_COMPILE([
910 #include <linux/fs.h>
911 #include <linux/stddef.h>
913 notify_change(NULL, NULL, NULL);
916 AC_DEFINE(HAVE_SECURITY_PLUG, 1,
917 [SLES10 SP2 use extra parameter in vfs])
923 AC_DEFUN([LC_PGMKWRITE_USE_VMFAULT],
924 [AC_MSG_CHECKING([kernel .page_mkwrite uses struct vm_fault *])
925 tmp_flags="$EXTRA_KCFLAGS"
926 EXTRA_KCFLAGS="-Werror"
927 LB_LINUX_TRY_COMPILE([
928 #include <linux/mm.h>
930 ((struct vm_operations_struct *)0)->page_mkwrite((struct vm_area_struct *)0, (struct vm_fault *)0);
933 AC_DEFINE(HAVE_PGMKWRITE_USE_VMFAULT, 1,
934 [kernel vm_operation_struct.page_mkwrite uses struct vm_fault * as second parameter])
938 EXTRA_KCFLAGS="$tmp_flags"
941 AC_DEFUN([LC_PGMKWRITE_COMPACT],
942 [AC_MSG_CHECKING([if kernel .page_mkwrite is located in vm_operation_struct._pmkw])
943 tmp_flags="$EXTRA_KCFLAGS"
944 EXTRA_KCFLAGS="-Werror"
945 LB_LINUX_TRY_COMPILE([
946 #include <linux/mm.h>
948 struct vm_operations_struct *vm_ops;
951 vm_ops->_pmkw.page_mkwrite(NULL, NULL);
954 AC_DEFINE(HAVE_PGMKWRITE_COMPACT, 1,
955 [kernel .page_mkwrite is located in vm_operation_struct._pmkw])
959 EXTRA_KCFLAGS="$tmp_flags"
962 AC_DEFUN([LC_INODE_PERMISION_2ARGS],
963 [AC_MSG_CHECKING([inode_operations->permission has two args])
964 LB_LINUX_TRY_COMPILE([
965 #include <linux/fs.h>
967 struct inode *inode __attribute__ ((unused));
970 inode->i_op->permission(NULL, 0);
972 AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
973 [inode_operations->permission has two args])
980 # 2.6.27 have new page locking API
981 AC_DEFUN([LC_TRYLOCKPAGE],
982 [AC_MSG_CHECKING([kernel uses trylock_page for page lock])
983 LB_LINUX_TRY_COMPILE([
984 #include <linux/pagemap.h>
988 AC_DEFINE(HAVE_TRYLOCK_PAGE, 1,
989 [kernel uses trylock_page for page lock])
996 # 2.6.27 removed the read_inode from super_operations.
997 AC_DEFUN([LC_READ_INODE_IN_SBOPS],
998 [AC_MSG_CHECKING([super_operations has a read_inode field])
999 LB_LINUX_TRY_COMPILE([
1000 #include <linux/fs.h>
1002 struct super_operations *sop;
1003 sop->read_inode(NULL);
1005 AC_DEFINE(HAVE_READ_INODE_IN_SBOPS, 1,
1006 [super_operations has a read_inode])
1007 AC_MSG_RESULT([yes])
1013 # 2.6.27 has inode_permission instead of permisson
1014 AC_DEFUN([LC_EXPORT_INODE_PERMISSION],
1015 [LB_CHECK_SYMBOL_EXPORT([inode_permission],
1017 AC_DEFINE(HAVE_EXPORT_INODE_PERMISSION, 1,
1018 [inode_permission is exported by the kernel])
1023 # 2.6.27 use 5th parameter in quota_on for remount.
1024 AC_DEFUN([LC_QUOTA_ON_5ARGS],
1025 [AC_MSG_CHECKING([quota_on needs 5 parameters])
1026 LB_LINUX_TRY_COMPILE([
1027 #include <linux/fs.h>
1028 #include <linux/quota.h>
1030 struct quotactl_ops *qop = NULL;
1031 qop->quota_on(NULL, 0, 0, NULL, 0);
1033 AC_DEFINE(HAVE_QUOTA_ON_5ARGS, 1,
1034 [quota_on needs 5 paramters])
1035 AC_MSG_RESULT([yes])
1041 # 2.6.27 use 3th parameter in quota_off for remount.
1042 AC_DEFUN([LC_QUOTA_OFF_3ARGS],
1043 [AC_MSG_CHECKING([quota_off needs 3 parameters])
1044 LB_LINUX_TRY_COMPILE([
1045 #include <linux/fs.h>
1046 #include <linux/quota.h>
1048 struct quotactl_ops *qop = NULL;
1049 qop->quota_off(NULL, 0, 0);
1051 AC_DEFINE(HAVE_QUOTA_OFF_3ARGS, 1,
1052 [quota_off needs 3 paramters])
1053 AC_MSG_RESULT([yes])
1059 # 2.6.27 has vfs_dq_off inline function.
1060 AC_DEFUN([LC_VFS_DQ_OFF],
1061 [AC_MSG_CHECKING([vfs_dq_off is defined])
1062 LB_LINUX_TRY_COMPILE([
1063 #include <linux/quotaops.h>
1065 vfs_dq_off(NULL, 0);
1067 AC_DEFINE(HAVE_VFS_DQ_OFF, 1, [vfs_dq_off is defined])
1068 AC_MSG_RESULT([yes])
1074 # 2.6.34 has quotactl_ops->[sg]et_dqblk that take struct fs_disk_quota
1075 AC_DEFUN([LC_HAVE_DQUOT_FS_DISK_QUOTA],
1076 tmp_flags="$EXTRA_KCFLAGS"
1077 EXTRA_KCFLAGS="-Werror"
1078 [AC_MSG_CHECKING([if quotactl_ops.set_dqblk takes struct fs_disk_quota])
1079 LB_LINUX_TRY_COMPILE([
1080 #include <linux/fs.h>
1081 #include <linux/quota.h>
1083 struct quotactl_ops qops = {};
1084 struct fs_disk_quota fdq;
1085 qops.set_dqblk(NULL, 0, 0, &fdq);
1087 AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1, [quotactl_ops.set_dqblk takes struct fs_disk_quota])
1088 AC_MSG_RESULT([yes])
1092 EXTRA_KCFLAGS="$tmp_flags"
1095 # 2.6.34 has renamed dquot options to dquot_*, check for dquot_suspend
1096 AC_DEFUN([LC_HAVE_DQUOT_SUSPEND],
1097 [AC_MSG_CHECKING([if dquot_suspend is defined])
1098 LB_LINUX_TRY_COMPILE([
1099 #include <linux/quotaops.h>
1101 dquot_suspend(NULL, -1);
1103 AC_DEFINE(HAVE_DQUOT_SUSPEND, 1, [dquot_suspend is defined])
1104 AC_MSG_RESULT([yes])
1110 # LC_LOCK_MAP_ACQUIRE
1111 # after 2.6.27 lock_map_acquire replaces lock_acquire
1112 AC_DEFUN([LC_LOCK_MAP_ACQUIRE],
1113 [AC_MSG_CHECKING([if lock_map_acquire is defined])
1114 LB_LINUX_TRY_COMPILE([
1115 #include <linux/lockdep.h>
1117 lock_map_acquire(NULL);
1120 AC_DEFINE(HAVE_LOCK_MAP_ACQUIRE, 1,
1121 [lock_map_acquire is defined])
1127 # 2.6.27.15-2 sles11
1129 # 2.6.27 sles11 remove the bi_hw_segments
1130 AC_DEFUN([LC_BI_HW_SEGMENTS],
1131 [AC_MSG_CHECKING([struct bio has a bi_hw_segments field])
1132 LB_LINUX_TRY_COMPILE([
1133 #include <linux/bio.h>
1136 io.bi_hw_segments = sizeof(io);
1138 AC_DEFINE(HAVE_BI_HW_SEGMENTS, 1,
1139 [struct bio has a bi_hw_segments field])
1140 AC_MSG_RESULT([yes])
1147 # 2.6.27 sles11 move the quotaio_v1{2}.h from include/linux to fs
1148 # 2.6.32 move the quotaio_v1{2}.h from fs to fs/quota
1149 AC_DEFUN([LC_HAVE_QUOTAIO_H],
1150 [LB_CHECK_FILE([$LINUX/include/linux/quotaio_v2.h],[
1151 AC_DEFINE(HAVE_QUOTAIO_H, 1,
1152 [kernel has include/linux/quotaio_v2.h])
1153 ],[LB_CHECK_FILE([$LINUX/fs/quotaio_v2.h],[
1154 AC_DEFINE(HAVE_FS_QUOTAIO_H, 1,
1155 [kernel has fs/quotaio_v1.h])
1156 ],[LB_CHECK_FILE([$LINUX/fs/quota/quotaio_v2.h],[
1157 AC_DEFINE(HAVE_FS_QUOTA_QUOTAIO_H, 1,
1158 [kernel has fs/quota/quotaio_v2.h])
1166 # 2.6.27 sles11 has sb_any_quota_active
1167 AC_DEFUN([LC_SB_ANY_QUOTA_ACTIVE],
1168 [AC_MSG_CHECKING([Kernel has sb_any_quota_active])
1169 LB_LINUX_TRY_COMPILE([
1170 #include <linux/quotaops.h>
1172 sb_any_quota_active(NULL);
1174 AC_DEFINE(HAVE_SB_ANY_QUOTA_ACTIVE, 1,
1175 [Kernel has a sb_any_quota_active])
1176 AC_MSG_RESULT([yes])
1182 # 2.6.27 sles11 has sb_has_quota_active
1183 AC_DEFUN([LC_SB_HAS_QUOTA_ACTIVE],
1184 [AC_MSG_CHECKING([Kernel has sb_has_quota_active])
1185 LB_LINUX_TRY_COMPILE([
1186 #include <linux/quotaops.h>
1188 sb_has_quota_active(NULL, 0);
1190 AC_DEFINE(HAVE_SB_HAS_QUOTA_ACTIVE, 1,
1191 [Kernel has a sb_has_quota_active])
1192 AC_MSG_RESULT([yes])
1198 # 2.6.27 exported add_to_page_cache_lru.
1199 AC_DEFUN([LC_EXPORT_ADD_TO_PAGE_CACHE_LRU],
1200 [LB_CHECK_SYMBOL_EXPORT([add_to_page_cache_lru],
1202 AC_DEFINE(HAVE_ADD_TO_PAGE_CACHE_LRU, 1,
1203 [add_to_page_cache_lru functions are present])
1209 # 2.6.29 introduce sb_any_quota_loaded.
1211 AC_DEFUN([LC_SB_ANY_QUOTA_LOADED],
1212 [AC_MSG_CHECKING([Kernel has sb_any_quota_loaded])
1213 LB_LINUX_TRY_COMPILE([
1214 #include <linux/quotaops.h>
1216 sb_any_quota_loaded(NULL);
1218 AC_DEFINE(HAVE_SB_ANY_QUOTA_LOADED, 1,
1219 [Kernel has a sb_any_quota_loaded])
1220 AC_MSG_RESULT([yes])
1226 # 2.6.30 x86 node_to_cpumask has been removed. must use cpumask_of_node
1227 AC_DEFUN([LC_EXPORT_CPUMASK_OF_NODE],
1228 [LB_CHECK_SYMBOL_EXPORT([node_to_cpumask_map],
1229 [arch/$LINUX_ARCH/mm/numa.c],
1230 [AC_DEFINE(HAVE_CPUMASK_OF_NODE, 1,
1231 [node_to_cpumask_map is exported by
1232 the kernel])]) # x86_64
1236 # 2.6.31 replaces blk_queue_hardsect_size by blk_queue_logical_block_size function
1237 AC_DEFUN([LC_BLK_QUEUE_LOG_BLK_SIZE],
1238 [AC_MSG_CHECKING([if blk_queue_logical_block_size is defined])
1239 LB_LINUX_TRY_COMPILE([
1240 #include <linux/blkdev.h>
1242 blk_queue_logical_block_size(NULL, 0);
1245 AC_DEFINE(HAVE_BLK_QUEUE_LOG_BLK_SIZE, 1,
1246 [blk_queue_logical_block_size is defined])
1254 # 2.6.32 introduced inode_newsize_ok
1255 AC_DEFUN([LC_VFS_INODE_NEWSIZE_OK],
1256 [AC_MSG_CHECKING([if inode_newsize_ok is defined])
1257 LB_LINUX_TRY_COMPILE([
1258 #include <linux/fs.h>
1260 return inode_newsize_ok(NULL, 0);
1263 AC_DEFINE(HAVE_VFS_INODE_NEWSIZE_OK, 1,
1264 [inode_newsize_ok is defined])
1270 # 2.6.32 changes cache_detail's member cache_request to cache_upcall
1271 # in kernel commit bc74b4f5e63a09fb78e245794a0de1e5a2716bbe
1272 AC_DEFUN([LC_CACHE_UPCALL],
1273 [AC_MSG_CHECKING([if cache_detail has cache_upcall field])
1274 LB_LINUX_TRY_COMPILE([
1275 #include <linux/sunrpc/cache.h>
1277 struct cache_detail cd;
1278 cd.cache_upcall = NULL;
1281 AC_DEFINE(HAVE_CACHE_UPCALL, 1,
1282 [cache_detail has cache_upcall field])
1288 # 2.6.32 add a limits member in struct request_queue.
1289 AC_DEFUN([LC_REQUEST_QUEUE_LIMITS],
1290 [AC_MSG_CHECKING([if request_queue has a limits field])
1291 LB_LINUX_TRY_COMPILE([
1292 #include <linux/blkdev.h>
1294 struct request_queue rq;
1295 rq.limits.io_min = 0;
1298 AC_DEFINE(HAVE_REQUEST_QUEUE_LIMITS, 1,
1299 [request_queue has a limits field])
1305 # 2.6.32 has bdi_register() functions.
1306 AC_DEFUN([LC_EXPORT_BDI_REGISTER],
1307 [LB_CHECK_SYMBOL_EXPORT([bdi_register],
1308 [mm/backing-dev.c],[
1309 AC_DEFINE(HAVE_BDI_REGISTER, 1,
1310 [bdi_register function is present])
1315 # 2.6.32 add s_bdi for super block
1316 AC_DEFUN([LC_SB_BDI],
1317 [AC_MSG_CHECKING([if super_block has s_bdi field])
1318 LB_LINUX_TRY_COMPILE([
1319 #include <linux/fs.h>
1321 struct super_block sb;
1325 AC_DEFINE(HAVE_SB_BDI, 1,
1326 [super_block has s_bdi field])
1332 # 2.6.27.15-2 SuSE 11 sp0 kernels lack the name field for BDI
1333 AC_DEFUN([LC_BDI_NAME],
1334 [AC_MSG_CHECKING([if backing_device_info has name field])
1335 LB_LINUX_TRY_COMPILE([
1336 #include <linux/blkdev.h>
1338 struct backing_dev_info bdi;
1342 AC_DEFINE(HAVE_BDI_NAME, 1,
1343 [backing_device_info has name field])
1349 # 2.6.32 removes blk_queue_max_sectors and add blk_queue_max_hw_sectors
1350 # check blk_queue_max_sectors and use it until disappear.
1351 AC_DEFUN([LC_BLK_QUEUE_MAX_SECTORS],
1352 [AC_MSG_CHECKING([if blk_queue_max_sectors is defined])
1353 LB_LINUX_TRY_COMPILE([
1354 #include <linux/blkdev.h>
1356 blk_queue_max_sectors(NULL, 0);
1359 AC_DEFINE(HAVE_BLK_QUEUE_MAX_SECTORS, 1,
1360 [blk_queue_max_sectors is defined])
1366 # 2.6.32 replaces 2 functions blk_queue_max_phys_segments and blk_queue_max_hw_segments by blk_queue_max_segments
1367 AC_DEFUN([LC_BLK_QUEUE_MAX_SEGMENTS],
1368 [AC_MSG_CHECKING([if blk_queue_max_segments is defined])
1369 LB_LINUX_TRY_COMPILE([
1370 #include <linux/blkdev.h>
1372 blk_queue_max_segments(NULL, 0);
1375 AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
1376 [blk_queue_max_segments is defined])
1385 # Check if kernel has been patched for 64-bit quota limits support.
1386 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
1387 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
1388 # that in the absence of quotaio_v1.h in the kernel headers.
1390 AC_DEFUN([LC_QUOTA64],[
1391 AC_MSG_CHECKING([if kernel has 64-bit quota limits support])
1392 tmp_flags="$EXTRA_KCFLAGS"
1393 EXTRA_KCFLAGS="-I$LINUX/fs"
1394 LB_LINUX_TRY_COMPILE([
1395 #include <linux/kernel.h>
1396 #include <linux/fs.h>
1397 #ifdef HAVE_QUOTAIO_H
1398 # include <linux/quotaio_v2.h>
1399 int versions[] = V2_INITQVERSIONS_R1;
1400 struct v2_disk_dqblk_r1 dqblk_r1;
1401 #elif defined(HAVE_FS_QUOTA_QUOTAIO_H)
1402 # include <quota/quotaio_v2.h>
1403 struct v2r1_disk_dqblk dqblk_r1;
1404 #elif defined(HAVE_FS_QUOTAIO_H)
1405 # include <quotaio_v2.h>
1406 struct v2r1_disk_dqblk dqblk_r1;
1408 #include <linux/quota.h>
1409 int ver = QFMT_VFS_V1;
1412 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
1413 AC_MSG_RESULT([yes])
1415 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
1416 AC_MSG_ERROR([You have got no 64-bit kernel quota support.])
1420 EXTRA_KCFLAGS=$tmp_flags
1423 # 2.6.32 set_cpus_allowed is no more defined if CONFIG_CPUMASK_OFFSTACK=yes
1424 AC_DEFUN([LC_SET_CPUS_ALLOWED],
1425 [AC_MSG_CHECKING([if kernel defines set_cpus_allowed])
1426 LB_LINUX_TRY_COMPILE(
1427 [#include <linux/sched.h>],
1428 [struct task_struct *p = NULL;
1429 cpumask_t mask = { { 0 } };
1430 (void) set_cpus_allowed(p, mask);],
1431 [AC_MSG_RESULT([yes])
1432 AC_DEFINE(HAVE_SET_CPUS_ALLOWED, 1,
1433 [set_cpus_allowed is exported by the kernel])],
1434 [AC_MSG_RESULT([no])] )])
1436 # 2.6.32 introduces selinux_is_enabled()
1437 AC_DEFUN([LC_SELINUX_IS_ENABLED],
1438 [AC_MSG_CHECKING([if selinux_is_enabled is available])
1439 LB_LINUX_TRY_COMPILE([
1440 #include <linux/selinux.h>
1442 selinux_is_enabled();
1444 AC_MSG_RESULT([yes])
1445 AC_DEFINE(HAVE_SELINUX_IS_ENABLED, 1,
1446 [selinux_is_enabled is defined])
1454 # starting from 2.6.28 kernel replaces d_alloc_anon() with
1455 # d_obtain_alias() for getting anonymous dentries
1456 # RHEL5(2.6.18) has d_obtain_alias but SLES11SP0(2.6.27) not
1458 AC_DEFUN([LC_D_OBTAIN_ALIAS],
1459 [AC_MSG_CHECKING([d_obtain_alias exist in kernel])
1460 LB_LINUX_TRY_COMPILE([
1461 #include <linux/dcache.h>
1463 d_obtain_alias(NULL);
1465 AC_DEFINE(HAVE_D_OBTAIN_ALIAS, 1,
1466 [d_obtain_alias exist in kernel])
1467 AC_MSG_RESULT([yes])
1474 # LC_EXPORT_GENERIC_ERROR_REMOVE_PAGE
1476 AC_DEFUN([LC_EXPORT_GENERIC_ERROR_REMOVE_PAGE],
1477 [LB_CHECK_SYMBOL_EXPORT(
1478 [generic_error_remove_page],
1480 [AC_DEFINE(HAS_GENERIC_ERROR_REMOVE_PAGE, 1,
1481 [kernel export generic_error_remove_page])],
1486 # 2.6.32 if kernel export access_process_vm().
1487 AC_DEFUN([LC_EXPORT_ACCESS_PROCESS_VM],
1488 [LB_CHECK_SYMBOL_EXPORT([access_process_vm],
1490 [AC_DEFINE(HAVE_ACCESS_PROCESS_VM, 1,
1491 [access_process_vm function is present])],
1497 # 2.6.36 fs_struct.lock use spinlock instead of rwlock.
1499 AC_DEFUN([LC_FS_STRUCT_RWLOCK],
1500 [AC_MSG_CHECKING([if fs_struct.lock use rwlock])
1501 LB_LINUX_TRY_COMPILE([
1502 #include <asm/atomic.h>
1503 #include <linux/spinlock.h>
1504 #include <linux/fs_struct.h>
1506 ((struct fs_struct *)0)->lock = (rwlock_t){ 0 };
1508 AC_DEFINE(HAVE_FS_STRUCT_RWLOCK, 1,
1509 [fs_struct.lock use rwlock])
1510 AC_MSG_RESULT([yes])
1517 # 2.6.36 super_operations add evict_inode method. it hybird of
1518 # delete_inode & clear_inode.
1520 AC_DEFUN([LC_SBOPS_EVICT_INODE],
1521 [AC_MSG_CHECKING([if super_operations.evict_inode exist])
1522 LB_LINUX_TRY_COMPILE([
1523 #include <linux/fs.h>
1525 ((struct super_operations *)0)->evict_inode(NULL);
1527 AC_DEFINE(HAVE_SBOPS_EVICT_INODE, 1,
1528 [super_operations.evict_inode() is exist in kernel])
1529 AC_MSG_RESULT([yes])
1536 # 2.6.35 file_operations.fsync taken 2 arguments.
1537 # 3.0.0 file_operations.fsync takes 4 arguments.
1539 AC_DEFUN([LC_FILE_FSYNC],
1540 [AC_MSG_CHECKING([if file_operations.fsync takes 4 or 2 arguments])
1541 LB_LINUX_TRY_COMPILE([
1542 #include <linux/fs.h>
1544 ((struct file_operations *)0)->fsync(NULL, 0, 0, 0);
1546 AC_DEFINE(HAVE_FILE_FSYNC_4ARGS, 1,
1547 [file_operations.fsync takes 4 arguments])
1548 AC_MSG_RESULT([yes, 4 args])
1550 LB_LINUX_TRY_COMPILE([
1551 #include <linux/fs.h>
1553 ((struct file_operations *)0)->fsync(NULL, 0);
1555 AC_DEFINE(HAVE_FILE_FSYNC_2ARGS, 1,
1556 [file_operations.fsync takes 2 arguments])
1557 AC_MSG_RESULT([yes, 2 args])
1565 # 2.6.37 remove kernel_locked
1567 AC_DEFUN([LC_KERNEL_LOCKED],
1568 [AC_MSG_CHECKING([if kernel_locked is defined])
1569 LB_LINUX_TRY_COMPILE([
1570 #include <linux/smp_lock.h>
1574 AC_MSG_RESULT([yes])
1575 AC_DEFINE(HAVE_KERNEL_LOCKED, 1,
1576 [kernel_locked is defined])
1583 # 2.6.38 dentry_operations.d_compare() taken 7 arguments.
1585 AC_DEFUN([LC_D_COMPARE_7ARGS],
1586 [AC_MSG_CHECKING([if d_compare taken 7 arguments])
1587 LB_LINUX_TRY_COMPILE([
1588 #include <linux/dcache.h>
1590 ((struct dentry_operations*)0)->d_compare(NULL,NULL,NULL,NULL,0,NULL,NULL);
1592 AC_DEFINE(HAVE_D_COMPARE_7ARGS, 1,
1593 [d_compare need 7 arguments])
1594 AC_MSG_RESULT([yes])
1601 # 2.6.38 dentry_operations.d_delete() defined 'const' for 1st parameter.
1603 AC_DEFUN([LC_D_DELETE_CONST],
1604 [AC_MSG_CHECKING([if d_delete has const declare on first parameter])
1605 tmp_flags="$EXTRA_KCFLAGS"
1606 EXTRA_KCFLAGS="-Werror"
1607 LB_LINUX_TRY_COMPILE([
1608 #include <linux/dcache.h>
1610 const struct dentry *d = NULL;
1611 ((struct dentry_operations*)0)->d_delete(d);
1613 AC_DEFINE(HAVE_D_DELETE_CONST, const,
1614 [d_delete first parameter declared const])
1615 AC_MSG_RESULT([yes])
1617 AC_DEFINE(HAVE_D_DELETE_CONST, , [])
1620 EXTRA_KCFLAGS="$tmp_flags"
1624 # 2.6.38 dcache_lock removed. rcu-walk commited.
1626 AC_DEFUN([LC_DCACHE_LOCK],
1627 [AC_MSG_CHECKING([if dcache_lock is exist])
1628 LB_LINUX_TRY_COMPILE([
1629 #include <linux/dcache.h>
1631 spin_lock(&dcache_lock);
1633 AC_DEFINE(HAVE_DCACHE_LOCK, 1,
1634 [dcache_lock is exist])
1635 AC_MSG_RESULT([yes])
1642 # 2.6.38 export blkdev_get_by_dev
1644 AC_DEFUN([LC_BLKDEV_GET_BY_DEV],
1645 [LB_CHECK_SYMBOL_EXPORT([blkdev_get_by_dev],
1647 AC_DEFINE(HAVE_BLKDEV_GET_BY_DEV, 1,
1648 [blkdev_get_by_dev is exported by the kernel])
1654 # 2.6.38 use path as 4th parameter in quota_on.
1656 AC_DEFUN([LC_QUOTA_ON_USE_PATH],
1657 [AC_MSG_CHECKING([quota_on use path as parameter])
1658 tmp_flags="$EXTRA_KCFLAGS"
1659 EXTRA_KCFLAGS="-Werror"
1660 LB_LINUX_TRY_COMPILE([
1661 #include <linux/fs.h>
1662 #include <linux/quota.h>
1664 ((struct quotactl_ops *)0)->quota_on(NULL, 0, 0, ((struct path*)0));
1666 AC_DEFINE(HAVE_QUOTA_ON_USE_PATH, 1,
1667 [quota_on use path as 4th paramter])
1668 AC_MSG_RESULT([yes])
1672 EXTRA_KCFLAGS="$tmp_flags"
1676 # 2.6.38 export simple_setattr
1678 AC_DEFUN([LC_EXPORT_SIMPLE_SETATTR],
1679 [LB_CHECK_SYMBOL_EXPORT([simple_setattr],
1681 AC_DEFINE(HAVE_SIMPLE_SETATTR, 1,
1682 [simple_setattr is exported by the kernel])
1688 # 2.6.39 remove unplug_fn from request_queue.
1690 AC_DEFUN([LC_REQUEST_QUEUE_UNPLUG_FN],
1691 [AC_MSG_CHECKING([if request_queue has unplug_fn field])
1692 LB_LINUX_TRY_COMPILE([
1693 #include <linux/blkdev.h>
1695 do{ }while(sizeof(((struct request_queue *)0)->unplug_fn));
1697 AC_DEFINE(HAVE_REQUEST_QUEUE_UNPLUG_FN, 1,
1698 [request_queue has unplug_fn field])
1699 AC_MSG_RESULT([yes])
1706 # 2.6.39 replace get_sb with mount in struct file_system_type
1708 AC_DEFUN([LC_HAVE_FSTYPE_MOUNT],
1709 [AC_MSG_CHECKING([if file_system_type has mount field])
1710 LB_LINUX_TRY_COMPILE([
1711 #include <linux/fs.h>
1713 struct file_system_type fst;
1714 void *i = (void *) fst.mount;
1716 AC_DEFINE(HAVE_FSTYPE_MOUNT, 1,
1717 [struct file_system_type has mount field])
1718 AC_MSG_RESULT([yes])
1725 # 3.0 dirty_inode() has a flag parameter
1726 # see kernel commit aa38572954ade525817fe88c54faebf85e5a61c0
1728 AC_DEFUN([LC_DIRTY_INODE_WITH_FLAG],
1729 [AC_MSG_CHECKING([if dirty_inode super_operation takes flag])
1730 LB_LINUX_TRY_COMPILE([
1731 #include <linux/fs.h>
1733 struct inode *inode;
1734 inode->i_sb->s_op->dirty_inode(NULL, 0);
1736 AC_DEFINE(HAVE_DIRTY_INODE_HAS_FLAG, 1,
1737 [dirty_inode super_operation takes flag])
1738 AC_MSG_RESULT([yes])
1745 # 2.6.38 generic_permission taken 4 parameters.
1746 # in fact, it means rcu-walk aware permission bring.
1748 # 3.1 generic_permission taken 2 parameters.
1749 # see kernel commit 2830ba7f34ebb27c4e5b8b6ef408cd6d74860890
1751 AC_DEFUN([LC_GENERIC_PERMISSION],
1752 [AC_MSG_CHECKING([if generic_permission take 2 or 4 arguments])
1753 LB_LINUX_TRY_COMPILE([
1754 #include <linux/fs.h>
1756 generic_permission(NULL, 0);
1758 AC_DEFINE(HAVE_GENERIC_PERMISSION_2ARGS, 1,
1759 [generic_permission taken 2 arguments])
1760 AC_MSG_RESULT([yes, 2 args])
1762 LB_LINUX_TRY_COMPILE([
1763 #include <linux/fs.h>
1765 generic_permission(NULL, 0, 0, NULL);
1767 AC_DEFINE(HAVE_GENERIC_PERMISSION_4ARGS, 1,
1768 [generic_permission taken 4 arguments])
1769 AC_MSG_RESULT([yes, 4 args])
1777 # 3.1 renames lock-manager ops(lock_manager_operations) from fl_xxx to lm_xxx
1778 # see kernel commit 8fb47a4fbf858a164e973b8ea8ef5e83e61f2e50
1780 AC_DEFUN([LC_LM_XXX_LOCK_MANAGER_OPS],
1781 [AC_MSG_CHECKING([if lock-manager ops renamed to lm_xxx])
1782 LB_LINUX_TRY_COMPILE([
1783 #include <linux/fs.h>
1785 struct lock_manager_operations lm_ops;
1786 lm_ops.lm_compare_owner = NULL;
1788 AC_DEFINE(HAVE_LM_XXX_LOCK_MANAGER_OPS, 1,
1789 [lock-manager ops renamed to lm_xxx])
1790 AC_MSG_RESULT([yes])
1797 # 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait/
1798 # inode_dio_done instead.
1799 # see kernel commit bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3
1801 AC_DEFUN([LC_INODE_DIO_WAIT],
1802 [AC_MSG_CHECKING([if inode->i_alloc_sem is killed and use inode_dio_wait/done.])
1803 LB_LINUX_TRY_COMPILE([
1804 #include <linux/fs.h>
1806 inode_dio_wait((struct inode *)0);
1807 inode_dio_done((struct inode *)0);
1809 AC_DEFINE(HAVE_INODE_DIO_WAIT, 1,
1810 [inode->i_alloc_sem is killed and use inode_dio_wait/done])
1811 AC_MSG_RESULT([yes])
1818 # 3.1 adds get_acl method to inode_operations to read ACL from disk.
1819 # see kernel commit 4e34e719e457f2e031297175410fc0bd4016a085
1821 AC_DEFUN([LC_IOP_GET_ACL],
1822 [AC_MSG_CHECKING([inode_operations has .get_acl member function])
1823 LB_LINUX_TRY_COMPILE([
1824 #include <linux/fs.h>
1826 struct inode_operations iop;
1829 AC_DEFINE(HAVE_IOP_GET_ACL, 1,
1830 [inode_operations has .get_acl member function])
1831 AC_MSG_RESULT([yes])
1838 # 3.1.1 has ext4_blocks_for_truncate
1840 AC_DEFUN([LC_BLOCKS_FOR_TRUNCATE],
1841 [AC_MSG_CHECKING([if kernel has ext4_blocks_for_truncate])
1842 LB_LINUX_TRY_COMPILE([
1843 #include <linux/fs.h>
1844 #include "$LINUX/fs/ext4/ext4_jbd2.h"
1845 #include "$LINUX/fs/ext4/truncate.h"
1847 ext4_blocks_for_truncate(NULL);
1849 AC_MSG_RESULT([yes])
1850 AC_DEFINE(HAVE_BLOCKS_FOR_TRUNCATE, 1,
1851 [kernel has ext4_blocks_for_truncate])
1858 # 3.1 introduced generic_file_llseek_size()
1860 AC_DEFUN([LC_FILE_LLSEEK_SIZE],
1861 [LB_CHECK_SYMBOL_EXPORT([generic_file_llseek_size],
1863 [AC_DEFINE(HAVE_FILE_LLSEEK_SIZE, 1,
1864 [generic_file_llseek_size is exported by the kernel])])
1868 # 3.2 request_queue.make_request_fn defined as function returns with void
1869 # see kernel commit 5a7bbad27a410350e64a2d7f5ec18fc73836c14f
1871 AC_DEFUN([LC_HAVE_VOID_MAKE_REQUEST_FN],
1872 [AC_MSG_CHECKING([if request_queue.make_request_fn returns void but not int])
1873 LB_LINUX_TRY_COMPILE([
1874 #include <linux/blkdev.h>
1877 make_request_fn *mrf;
1878 ret = mrf(NULL, NULL);
1882 AC_DEFINE(HAVE_VOID_MAKE_REQUEST_FN, 1,
1883 [request_queue.make_request_fn returns void but not int])
1884 AC_MSG_RESULT([yes])
1889 # 3.2 protects inode->i_nlink from direct modification
1890 # see kernel commit a78ef704a8dd430225955f0709b22d4a6ba21deb
1891 # at the same time adds set_nlink(), so checks set_nlink() for it.
1893 AC_DEFUN([LC_HAVE_PROTECT_I_NLINK],
1894 [AC_MSG_CHECKING([if inode->i_nlink is protected from direct modification])
1895 LB_LINUX_TRY_COMPILE([
1896 #include <linux/fs.h>
1901 AC_DEFINE(HAVE_PROTECT_I_NLINK, 1,
1902 [inode->i_nlink is protected from direct modification])
1903 AC_MSG_RESULT([yes])
1910 # 3.3 introduces migrate_mode.h and migratepage has 4 args
1912 AC_DEFUN([LC_HAVE_MIGRATE_HEADER],
1913 [LB_CHECK_FILE([$LINUX/include/linux/migrate.h],[
1914 AC_DEFINE(HAVE_MIGRATE_H, 1,
1915 [kernel has include/linux/migrate.h])
1916 ],[LB_CHECK_FILE([$LINUX/include/linux/migrate_mode.h],[
1917 AC_DEFINE(HAVE_MIGRATE_MODE_H, 1,
1918 [kernel has include/linux/migrate_mode.h])
1925 AC_DEFUN([LC_MIGRATEPAGE_4ARGS],
1926 [AC_MSG_CHECKING([if address_space_operations.migratepage has 4 args])
1927 LB_LINUX_TRY_COMPILE([
1928 #include <linux/fs.h>
1929 #ifdef HAVE_MIGRATE_H
1930 #include <linux/migrate.h>
1931 #elif defined(HAVE_MIGRATE_MODE_H)
1932 #include <linux/migrate_mode.h>
1935 struct address_space_operations aops;
1937 aops.migratepage(NULL, NULL, NULL, MIGRATE_ASYNC);
1939 AC_DEFINE(HAVE_MIGRATEPAGE_4ARGS, 1,
1940 [address_space_operations.migratepage has 4 args])
1941 AC_MSG_RESULT([yes])
1948 # 3.3 switchs super_operations to use dentry as parameter (but not vfsmount)
1949 # see kernel commit 34c80b1d93e6e20ca9dea0baf583a5b5510d92d4
1951 AC_DEFUN([LC_SUPEROPS_USE_DENTRY],
1952 [AC_MSG_CHECKING([if super_operations use dentry as parameter])
1953 tmp_flags="$EXTRA_KCFLAGS"
1954 EXTRA_KCFLAGS="-Werror"
1955 LB_LINUX_TRY_COMPILE([
1956 #include <linux/fs.h>
1957 int show_options(struct seq_file *seq, struct dentry *root){
1961 struct super_operations ops;
1962 ops.show_options = show_options;
1964 AC_DEFINE(HAVE_SUPEROPS_USE_DENTRY, 1,
1965 [super_operations use dentry as parameter])
1966 AC_MSG_RESULT([yes])
1970 EXTRA_KCFLAGS="$tmp_flags"
1974 # 3.3 switchs inode_operations to use umode_t as parameter (but not int)
1975 # see kernel commit 1a67aafb5f72a436ca044293309fa7e6351d6a35
1977 AC_DEFUN([LC_INODEOPS_USE_UMODE_T],
1978 [AC_MSG_CHECKING([if inode_operations use umode_t as parameter])
1979 tmp_flags="$EXTRA_KCFLAGS"
1980 EXTRA_KCFLAGS="-Werror"
1981 LB_LINUX_TRY_COMPILE([
1982 #include <linux/fs.h>
1983 #include <linux/types.h>
1984 int my_mknod(struct inode *dir, struct dentry *dchild,
1985 umode_t mode, dev_t dev)
1990 struct inode_operations ops;
1991 ops.mknod = my_mknod;
1993 AC_DEFINE(HAVE_INODEOPS_USE_UMODE_T, 1,
1994 [inode_operations use umode_t as parameter])
1995 AC_MSG_RESULT([yes])
1999 EXTRA_KCFLAGS="$tmp_flags"
2002 # 3.4 kmap_atomic removes second argument
2003 # see kernel commit 1ec9c5ddc17aa398f05646abfcbaf315b544e62f
2005 AC_DEFUN([LC_KMAP_ATOMIC_HAS_1ARG],
2006 [AC_MSG_CHECKING([if kmap_atomic has only 1 argument])
2007 LB_LINUX_TRY_COMPILE([
2008 #include <linux/highmem.h>
2012 AC_DEFINE(HAVE_KMAP_ATOMIC_HAS_1ARG, 1,
2013 [have kmap_atomic has only 1 argument])
2014 AC_MSG_RESULT([yes])
2021 # 3.4 switchs touch_atime to struct path
2022 # see kernel commit 68ac1234fb949b66941d94dce4157742799fc581
2024 AC_DEFUN([LC_TOUCH_ATIME_1ARG],
2025 [AC_MSG_CHECKING([if touch_atime use one argument])
2026 LB_LINUX_TRY_COMPILE([
2027 #include <linux/fs.h>
2029 touch_atime((struct path *)NULL);
2031 AC_DEFINE(HAVE_TOUCH_ATIME_1ARG, 1,
2032 [touch_atime use one argument])
2033 AC_MSG_RESULT([yes])
2040 # 3.4 converts d_alloc_root to d_make_root
2041 # see kernel commit 32991ab305ace7017c62f8eecbe5eb36dc32e13b
2043 AC_DEFUN([LC_HAVE_D_MAKE_ROOT],
2044 [AC_MSG_CHECKING([if have d_make_root])
2045 LB_LINUX_TRY_COMPILE([
2046 #include <linux/fs.h>
2048 d_make_root((struct inode *)NULL);
2050 AC_DEFINE(HAVE_D_MAKE_ROOT, 1,
2052 AC_MSG_RESULT([yes])
2059 # 3.5 renames end_writeback() back to clear_inode()...
2060 # see kernel commit dbd5768f87ff6fb0a4fe09c4d7b6c4a24de99430
2062 AC_DEFUN([LC_HAVE_CLEAR_INODE],
2063 [AC_MSG_CHECKING([if have clear_inode])
2064 LB_LINUX_TRY_COMPILE([
2065 #include <linux/fs.h>
2067 clear_inode((struct inode *)NULL);
2069 AC_DEFINE(HAVE_CLEAR_INODE, 1,
2071 AC_MSG_RESULT([yes])
2078 # 3.5 encode_fh has parent inode passed in directly
2079 # see kernel commit b0b0382b
2081 AC_DEFUN([LC_HAVE_ENCODE_FH_PARENT],
2082 [AC_MSG_CHECKING([if encode_fh have parent inode as parameter])
2083 tmp_flags="$EXTRA_KCFLAGS"
2084 EXTRA_KCFLAGS="-Werror"
2085 LB_LINUX_TRY_COMPILE([
2086 #include <linux/exportfs.h>
2087 #include <linux/fs.h>
2088 #include <linux/types.h>
2089 int ll_encode_fh(struct inode *i, __u32 *a, int *b, struct inode *p)
2094 struct export_operations exp_op;
2095 exp_op.encode_fh = ll_encode_fh;
2097 AC_DEFINE(HAVE_ENCODE_FH_PARENT, 1,
2098 [have parent inode as parameter])
2099 AC_MSG_RESULT([yes])
2103 EXTRA_KCFLAGS="$tmp_flags"
2106 # 3.5 has generic_file_llseek_size with 5 args
2107 AC_DEFUN([LC_FILE_LLSEEK_SIZE_5ARG],
2108 [AC_MSG_CHECKING([if kernel has generic_file_llseek_size with 5 args])
2109 LB_LINUX_TRY_COMPILE([
2110 #include <linux/fs.h>
2112 generic_file_llseek_size(NULL, 0, 0, 0, 0);
2114 AC_MSG_RESULT([yes])
2115 AC_DEFINE(HAVE_FILE_LLSEEK_SIZE_5ARGS, 1,
2116 [kernel has generic_file_llseek_size with 5 args])
2123 # 3.6 switch i_dentry/d_alias from list to hlist
2125 AC_DEFUN([LC_HAVE_DENTRY_D_ALIAS_HLIST],
2126 [AC_MSG_CHECKING([if i_dentry/d_alias uses hlist])
2127 tmp_flags="$EXTRA_KCFLAGS"
2128 EXTRA_KCFLAGS="-Werror"
2129 LB_LINUX_TRY_COMPILE([
2130 #include <linux/fs.h>
2131 #include <linux/list.h>
2134 struct dentry dentry;
2135 struct hlist_head head;
2136 struct hlist_node node;
2137 inode.i_dentry = head;
2138 dentry.d_alias = node;
2140 AC_DEFINE(HAVE_DENTRY_D_ALIAS_HLIST, 1,
2141 [have i_dentry/d_alias uses hlist])
2142 AC_MSG_RESULT([yes])
2146 EXTRA_KCFLAGS="$tmp_flags"
2150 # 3.6 dentry_open uses struct path as first argument
2151 # see kernel commit 765927b2
2153 AC_DEFUN([LC_DENTRY_OPEN_USE_PATH],
2154 [AC_MSG_CHECKING([if dentry_open uses struct path as first argument])
2155 tmp_flags="$EXTRA_KCFLAGS"
2156 EXTRA_KCFLAGS="-Werror"
2157 LB_LINUX_TRY_COMPILE([
2158 #include <linux/fs.h>
2159 #include <linux/path.h>
2162 dentry_open(&path, 0, NULL);
2164 AC_DEFINE(HAVE_DENTRY_OPEN_USE_PATH, 1,
2165 [dentry_open uses struct path as first argument])
2166 AC_MSG_RESULT([yes])
2170 EXTRA_KCFLAGS="$tmp_flags"
2174 # 3.6 vfs adds iop->atomic_open
2176 AC_DEFUN([LC_HAVE_IOP_ATOMIC_OPEN],
2177 [AC_MSG_CHECKING([if iop has atomic_open])
2178 LB_LINUX_TRY_COMPILE([
2179 #include <linux/fs.h>
2181 struct inode_operations iop;
2182 iop.atomic_open = NULL;
2184 AC_DEFINE(HAVE_IOP_ATOMIC_OPEN, 1,
2185 [have iop atomic_open])
2186 AC_MSG_RESULT([yes])
2193 # 3.7 posix_acl_{to,from}_xattr take struct user_namespace
2195 AC_DEFUN([LC_HAVE_POSIXACL_USER_NS],
2196 [AC_MSG_CHECKING([if posix_acl_to_xattr takes struct user_namespace])
2197 LB_LINUX_TRY_COMPILE([
2198 #include <linux/fs.h>
2199 #include <linux/posix_acl_xattr.h>
2201 posix_acl_to_xattr((struct user_namespace *)NULL, NULL, NULL, 0);
2203 AC_DEFINE(HAVE_POSIXACL_USER_NS, 1,
2204 [posix_acl_to_xattr takes struct user_namespace])
2205 AC_MSG_RESULT([yes])
2214 # Lustre linux kernel checks
2216 AC_DEFUN([LC_PROG_LINUX],
2220 LC_CONFIG_LIBLUSTRE_RECOVERY
2221 LC_CONFIG_HEALTH_CHECK_WRITE
2222 LC_CONFIG_LRU_RESIZE
2223 LC_LLITE_LLOOP_MODULE
2226 LC_EXPORT_TRUNCATE_COMPLETE
2227 LC_EXPORT_D_REHASH_COND
2228 LC_EXPORT___D_REHASH
2229 LC_EXPORT_NODE_TO_CPUMASK
2243 LC_UMOUNTBEGIN_HAS_VFSMOUNT
2245 #2.6.18 + RHEL5 (fc6)
2253 LC_CANCEL_DIRTY_PAGE
2255 # raid5-zerocopy patch
2259 LC_INVALIDATE_BDEV_2ARG
2260 LC_ASYNC_BLOCK_CIPHER
2262 LC_STRUCT_BLKCIPHER_DESC
2263 LC_FS_RENAME_DOES_D_MOVE
2266 LC_UNREGISTER_BLKDEV_RETURN_INT
2267 LC_KERNEL_SPLICE_READ
2272 LC_EXPORTFS_DECODE_FH
2282 LC_FS_STRUCT_USE_PATH
2285 LC_SECURITY_PLUG # for SLES10 SP2
2286 LC_PGMKWRITE_USE_VMFAULT
2287 LC_PGMKWRITE_COMPACT
2288 LC_INODE_PERMISION_2ARGS
2290 LC_READ_INODE_IN_SBOPS
2291 LC_EXPORT_INODE_PERMISSION
2297 # 2.6.27.15-2 sles11
2301 LC_SB_ANY_QUOTA_ACTIVE
2302 LC_SB_HAS_QUOTA_ACTIVE
2303 LC_EXPORT_ADD_TO_PAGE_CACHE_LRU
2306 LC_SB_ANY_QUOTA_LOADED
2309 LC_EXPORT_CPUMASK_OF_NODE
2312 LC_BLK_QUEUE_LOG_BLK_SIZE
2315 LC_REQUEST_QUEUE_LIMITS
2316 LC_EXPORT_BDI_REGISTER
2318 LC_BLK_QUEUE_MAX_SECTORS
2319 LC_BLK_QUEUE_MAX_SEGMENTS
2322 LC_EXPORT_GENERIC_ERROR_REMOVE_PAGE
2323 LC_SELINUX_IS_ENABLED
2324 LC_EXPORT_ACCESS_PROCESS_VM
2325 LC_VFS_INODE_NEWSIZE_OK
2328 LC_HAVE_DQUOT_FS_DISK_QUOTA
2329 LC_HAVE_DQUOT_SUSPEND
2333 LC_EXPORT_SIMPLE_SETATTR
2337 LC_SBOPS_EVICT_INODE
2343 LC_BLKDEV_GET_BY_DEV
2344 LC_GENERIC_PERMISSION
2345 LC_QUOTA_ON_USE_PATH
2351 LC_REQUEST_QUEUE_UNPLUG_FN
2352 LC_HAVE_FSTYPE_MOUNT
2355 LC_DIRTY_INODE_WITH_FLAG
2358 LC_LM_XXX_LOCK_MANAGER_OPS
2364 LC_BLOCKS_FOR_TRUNCATE
2367 LC_HAVE_VOID_MAKE_REQUEST_FN
2368 LC_HAVE_PROTECT_I_NLINK
2371 LC_HAVE_MIGRATE_HEADER
2372 LC_MIGRATEPAGE_4ARGS
2373 LC_SUPEROPS_USE_DENTRY
2374 LC_INODEOPS_USE_UMODE_T
2379 LC_KMAP_ATOMIC_HAS_1ARG
2383 LC_HAVE_ENCODE_FH_PARENT
2384 LC_FILE_LLSEEK_SIZE_5ARG
2387 LC_HAVE_DENTRY_D_ALIAS_HLIST
2388 LC_DENTRY_OPEN_USE_PATH
2389 LC_HAVE_IOP_ATOMIC_OPEN
2392 LC_HAVE_POSIXACL_USER_NS
2394 if test x$enable_server = xyes ; then
2395 AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
2396 LC_FUNC_DEV_SET_RDONLY
2404 # LC_CONFIG_CLIENT_SERVER
2406 # Build client/server sides of Lustre
2408 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
2409 [AC_MSG_CHECKING([whether to build Lustre server support])
2410 AC_ARG_ENABLE([server],
2411 AC_HELP_STRING([--disable-server],
2412 [disable Lustre server support]),
2413 [],[enable_server='yes'])
2414 AC_MSG_RESULT([$enable_server])
2416 AC_MSG_CHECKING([whether to build Lustre client support])
2417 AC_ARG_ENABLE([client],
2418 AC_HELP_STRING([--disable-client],
2419 [disable Lustre client support]),
2420 [],[enable_client='yes'])
2421 AC_MSG_RESULT([$enable_client])])
2424 # LC_CONFIG_LIBLUSTRE
2426 # whether to build liblustre
2428 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
2429 [AC_MSG_CHECKING([whether to build Lustre library])
2430 AC_ARG_ENABLE([liblustre],
2431 AC_HELP_STRING([--disable-liblustre],
2432 [disable building of Lustre library]),
2433 [],[enable_liblustre=$with_sysio])
2434 AC_MSG_RESULT([$enable_liblustre])
2435 # only build sysio if liblustre is built
2436 with_sysio="$enable_liblustre"
2438 AC_MSG_CHECKING([whether to build liblustre tests])
2439 AC_ARG_ENABLE([liblustre-tests],
2440 AC_HELP_STRING([--enable-liblustre-tests],
2441 [enable liblustre tests, if --disable-tests is used]),
2442 [],[enable_liblustre_tests=$enable_tests])
2443 if test x$enable_liblustre != xyes ; then
2444 enable_liblustre_tests='no'
2446 AC_MSG_RESULT([$enable_liblustre_tests])
2448 AC_MSG_CHECKING([whether to enable liblustre acl])
2449 AC_ARG_ENABLE([liblustre-acl],
2450 AC_HELP_STRING([--disable-liblustre-acl],
2451 [disable ACL support for liblustre]),
2452 [],[enable_liblustre_acl=yes])
2453 AC_MSG_RESULT([$enable_liblustre_acl])
2454 if test x$enable_liblustre_acl = xyes ; then
2455 AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
2458 # 2.6.29 change prepare/commit_write to write_begin/end
2459 AC_DEFUN([LC_WRITE_BEGIN_END],
2460 [AC_MSG_CHECKING([if kernel has .write_begin/end])
2461 LB_LINUX_TRY_COMPILE([
2462 #include <linux/fs.h>
2463 #include <linux/pagemap.h>
2464 #ifdef HAVE_LINUX_MMTYPES_H
2465 #include <linux/mm_types.h>
2468 struct address_space_operations aops;
2471 aops.write_begin = NULL;
2472 aops.write_end = NULL;
2473 page = grab_cache_page_write_begin(NULL, 0, 0);
2475 AC_MSG_RESULT([yes])
2476 AC_DEFINE(HAVE_KERNEL_WRITE_BEGIN_END, 1,
2477 [kernel has .write_begin/end])
2483 # 2.6.29 blkdev_put has 2 arguments
2484 AC_DEFUN([LC_BLKDEV_PUT_2ARGS],
2485 [AC_MSG_CHECKING([blkdev_put needs 2 parameters])
2486 LB_LINUX_TRY_COMPILE([
2487 #include <linux/fs.h>
2489 blkdev_put(NULL, 0);
2491 AC_DEFINE(HAVE_BLKDEV_PUT_2ARGS, 1,
2492 [blkdev_put needs 2 paramters])
2493 AC_MSG_RESULT([yes])
2499 # 2.6.29 dentry_open has 4 arguments
2500 AC_DEFUN([LC_DENTRY_OPEN_4ARGS],
2501 [AC_MSG_CHECKING([dentry_open needs 4 parameters])
2502 LB_LINUX_TRY_COMPILE([
2503 #include <linux/fs.h>
2505 dentry_open(NULL, NULL, 0, NULL);
2507 AC_DEFINE(HAVE_DENTRY_OPEN_4ARGS, 1,
2508 [dentry_open needs 4 paramters])
2509 AC_MSG_RESULT([yes])
2515 # 2.6.29 split file and anonymous page queues
2516 AC_DEFUN([LC_PAGEVEC_LRU_ADD_FILE],
2517 [AC_MSG_CHECKING([if kernel has .pagevec_lru_add_file])
2518 LB_LINUX_TRY_COMPILE([
2519 #include <linux/mm.h>
2520 #include <linux/pagevec.h>
2522 struct pagevec lru_pagevec;
2524 pagevec_init(&lru_pagevec, 0);
2525 pagevec_lru_add_file(&lru_pagevec);
2527 AC_MSG_RESULT([yes])
2528 AC_DEFINE(HAVE_PAGEVEC_LRU_ADD_FILE, 1,
2529 [kernel has .pagevec_lru_add_file])
2538 AC_ARG_ENABLE(mpitests,
2539 AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
2540 [include mpi tests]),
2551 MPICC_WRAPPER=$enableval
2561 if test x$enable_mpitests != xno; then
2562 AC_MSG_CHECKING([whether mpitests can be built])
2570 MPI_Initialized(&flag);
2573 AC_MSG_RESULT([yes])
2580 AC_SUBST(MPICC_WRAPPER)
2582 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
2583 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
2586 LC_CONFIG_LIBLUSTRE_RECOVERY
2592 # whether to enable quota support global control
2594 AC_DEFUN([LC_CONFIG_QUOTA],
2595 [AC_ARG_ENABLE([quota],
2596 AC_HELP_STRING([--enable-quota],
2597 [enable quota support]),
2598 [],[enable_quota='yes'])
2601 AC_DEFUN([LC_QUOTA],
2605 AC_CHECK_HEADER(sys/quota.h,
2606 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
2607 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
2613 # whether to enable split support
2615 AC_DEFUN([LC_CONFIG_SPLIT],
2616 [AC_MSG_CHECKING([whether to enable split support])
2617 AC_ARG_ENABLE([split],
2618 AC_HELP_STRING([--enable-split],
2619 [enable split support]),
2620 [],[enable_split='no'])
2621 AC_MSG_RESULT([$enable_split])
2622 if test x$enable_split != xno; then
2623 AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
2627 # RHEL5(2.6.18) has tux_info
2628 AC_DEFUN([LC_TASK_CLENV_TUX_INFO],
2629 [AC_MSG_CHECKING([tux_info])
2630 LB_LINUX_TRY_COMPILE([
2631 #include <linux/sched.h>
2633 struct task_struct task;
2636 AC_MSG_RESULT([yes])
2637 AC_DEFINE(LL_TASK_CL_ENV, tux_info, [have tux_info])
2638 have_task_clenv_store='yes'
2645 # LC_LLITE_LLOOP_MODULE
2646 # lloop_llite.ko does not currently work with page sizes
2649 AC_DEFUN([LC_LLITE_LLOOP_MODULE],
2650 [AC_MSG_CHECKING([whether to enable llite_lloop module])
2651 LB_LINUX_TRY_COMPILE([
2652 #include <asm/page.h>
2654 #if PAGE_SIZE >= 65536
2655 #error "PAGE_SIZE >= 65536"
2658 enable_llite_lloop_module='yes'
2659 AC_MSG_RESULT([yes])
2661 enable_llite_lloop_module='no'
2669 # configure support for optional OSD implementation
2671 AC_DEFUN([LC_OSD_ADDON],
2672 [AC_MSG_CHECKING([for osd])
2674 AC_HELP_STRING([--with-osd=path],
2675 [set path to optional osd]),
2678 no) ENABLEOSDADDON=0
2680 *) OSDADDON="${with_osd}"
2687 if test $ENABLEOSDADDON -eq 0; then
2691 OSDMODNAME=`basename $OSDADDON`
2692 if test -e $LUSTRE/$OSDMODNAME; then
2693 AC_MSG_RESULT([can't link])
2695 elif ln -s $OSDADDON $LUSTRE/$OSDMODNAME; then
2696 AC_MSG_RESULT([$OSDMODNAME])
2697 OSDADDON="subdir-m += $OSDMODNAME"
2699 AC_MSG_RESULT([can't link])
2709 # other configure checks
2711 AC_DEFUN([LC_CONFIGURE],
2712 [LC_CONFIG_OBD_BUFFER_SIZE
2714 if test $target_cpu == "i686" -o $target_cpu == "x86_64"; then
2715 CFLAGS="$CFLAGS -Werror"
2718 # maximum MDS thread count
2721 # include/liblustre.h
2722 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
2724 # liblustre/llite_lib.h
2725 AC_CHECK_HEADERS([xtio.h file.h])
2728 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
2731 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
2732 AC_CHECK_FUNCS([inet_ntoa])
2734 # libsysio/src/readlink.c
2737 # lvfs/prng.c - depends on linux/types.h from liblustre/dir.c
2738 AC_CHECK_HEADERS([linux/random.h], [], [],
2739 [#ifdef HAVE_LINUX_TYPES_H
2740 # include <linux/types.h>
2745 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
2747 # check for -lz support
2751 [AC_CHECK_HEADERS([zlib.h],
2753 AC_DEFINE([HAVE_ADLER], 1,
2754 [support alder32 checksum type])],
2755 [AC_MSG_WARN([No zlib-devel package found,
2756 unable to use adler32 checksum])])],
2757 [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
2762 AC_ARG_ENABLE([mindf],
2763 AC_HELP_STRING([--enable-mindf],
2764 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
2766 if test "$enable_mindf" = "yes" ; then
2767 AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
2770 AC_ARG_ENABLE([fail_alloc],
2771 AC_HELP_STRING([--disable-fail-alloc],
2772 [disable randomly alloc failure]),
2773 [],[enable_fail_alloc=yes])
2774 AC_MSG_CHECKING([whether to randomly failing memory alloc])
2775 AC_MSG_RESULT([$enable_fail_alloc])
2776 if test x$enable_fail_alloc != xno ; then
2777 AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
2780 AC_ARG_ENABLE([invariants],
2781 AC_HELP_STRING([--enable-invariants],
2782 [enable invariant checking (cpu intensive)]),
2784 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
2785 AC_MSG_RESULT([$enable_invariants])
2786 if test x$enable_invariants = xyes ; then
2787 AC_DEFINE([CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK], 1, [enable invariant checking])
2790 AC_ARG_ENABLE([lu_ref],
2791 AC_HELP_STRING([--enable-lu_ref],
2792 [enable lu_ref reference tracking code]),
2794 AC_MSG_CHECKING([whether to track references with lu_ref])
2795 AC_MSG_RESULT([$enable_lu_ref])
2796 if test x$enable_lu_ref = xyes ; then
2797 AC_DEFINE([USE_LU_REF], 1, [enable lu_ref reference tracking code])
2800 AC_ARG_ENABLE([pgstate-track],
2801 AC_HELP_STRING([--enable-pgstate-track],
2802 [enable page state tracking]),
2803 [enable_pgstat_track='yes'],[])
2804 AC_MSG_CHECKING([whether to enable page state tracking])
2805 AC_MSG_RESULT([$enable_pgstat_track])
2806 if test x$enable_pgstat_track = xyes ; then
2807 AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
2808 [enable page state tracking code])
2815 LC_DENTRY_OPEN_4ARGS
2816 LC_PAGEVEC_LRU_ADD_FILE
2823 # AM_CONDITIONALS for lustre
2825 AC_DEFUN([LC_CONDITIONALS],
2826 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
2827 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
2828 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
2829 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
2830 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
2831 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
2832 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
2833 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
2834 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
2835 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
2836 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
2837 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
2838 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
2839 AM_CONDITIONAL(LLITE_LLOOP, test x$enable_llite_lloop_module = xyes)
2845 # files that should be generated with AC_OUTPUT
2847 AC_DEFUN([LC_CONFIG_FILES],
2851 lustre/autoconf/Makefile
2852 lustre/conf/Makefile
2853 lustre/contrib/Makefile
2855 lustre/include/Makefile
2856 lustre/include/lustre_ver.h
2857 lustre/include/linux/Makefile
2858 lustre/include/darwin/Makefile
2859 lustre/include/lustre/Makefile
2860 lustre/kernel_patches/targets/2.6-rhel6.target
2861 lustre/kernel_patches/targets/2.6-rhel5.target
2862 lustre/kernel_patches/targets/2.6-sles11.target
2863 lustre/kernel_patches/targets/3.0-sles11.target
2864 lustre/kernel_patches/targets/2.6-fc11.target
2865 lustre/kernel_patches/targets/2.6-fc12.target
2866 lustre/kernel_patches/targets/2.6-fc15.target
2867 lustre/kernel_patches/targets/3.x-fc18.target
2868 lustre/ldlm/Makefile
2870 lustre/fid/autoMakefile
2871 lustre/liblustre/Makefile
2872 lustre/liblustre/tests/Makefile
2873 lustre/liblustre/tests/mpi/Makefile
2874 lustre/llite/Makefile
2875 lustre/llite/autoMakefile
2876 lustre/lclient/Makefile
2878 lustre/lov/autoMakefile
2879 lustre/lvfs/Makefile
2880 lustre/lvfs/autoMakefile
2882 lustre/mdc/autoMakefile
2884 lustre/lmv/autoMakefile
2886 lustre/mdt/autoMakefile
2888 lustre/mdd/autoMakefile
2890 lustre/fld/autoMakefile
2891 lustre/obdclass/Makefile
2892 lustre/obdclass/autoMakefile
2893 lustre/obdclass/linux/Makefile
2894 lustre/obdecho/Makefile
2895 lustre/obdecho/autoMakefile
2897 lustre/ofd/autoMakefile
2899 lustre/osc/autoMakefile
2901 lustre/ost/autoMakefile
2902 lustre/osd-ldiskfs/Makefile
2903 lustre/osd-ldiskfs/autoMakefile
2904 lustre/osd-zfs/Makefile
2905 lustre/osd-zfs/autoMakefile
2907 lustre/mgc/autoMakefile
2909 lustre/mgs/autoMakefile
2910 lustre/target/Makefile
2911 lustre/ptlrpc/Makefile
2912 lustre/ptlrpc/autoMakefile
2913 lustre/ptlrpc/gss/Makefile
2914 lustre/ptlrpc/gss/autoMakefile
2915 lustre/quota/Makefile
2916 lustre/quota/autoMakefile
2917 lustre/scripts/Makefile
2918 lustre/tests/Makefile
2919 lustre/tests/mpi/Makefile
2920 lustre/utils/Makefile
2921 lustre/utils/gss/Makefile
2923 lustre/osp/autoMakefile
2925 lustre/lod/autoMakefile
2926 lustre/obdclass/darwin/Makefile