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 inode.i_rcu added.
1644 AC_DEFUN([LC_INODE_I_RCU],
1645 [AC_MSG_CHECKING([if inode.i_rcu exists])
1646 LB_LINUX_TRY_COMPILE([
1647 #include <linux/fs.h>
1650 struct rcu_head rcu = {};
1653 AC_DEFINE(HAVE_INODE_I_RCU, 1,
1654 [inode.i_rcu exists])
1655 AC_MSG_RESULT([yes])
1662 # 2.6.38 export blkdev_get_by_dev
1664 AC_DEFUN([LC_BLKDEV_GET_BY_DEV],
1665 [LB_CHECK_SYMBOL_EXPORT([blkdev_get_by_dev],
1667 AC_DEFINE(HAVE_BLKDEV_GET_BY_DEV, 1,
1668 [blkdev_get_by_dev is exported by the kernel])
1674 # 2.6.38 use path as 4th parameter in quota_on.
1676 AC_DEFUN([LC_QUOTA_ON_USE_PATH],
1677 [AC_MSG_CHECKING([quota_on use path as parameter])
1678 tmp_flags="$EXTRA_KCFLAGS"
1679 EXTRA_KCFLAGS="-Werror"
1680 LB_LINUX_TRY_COMPILE([
1681 #include <linux/fs.h>
1682 #include <linux/quota.h>
1684 ((struct quotactl_ops *)0)->quota_on(NULL, 0, 0, ((struct path*)0));
1686 AC_DEFINE(HAVE_QUOTA_ON_USE_PATH, 1,
1687 [quota_on use path as 4th paramter])
1688 AC_MSG_RESULT([yes])
1692 EXTRA_KCFLAGS="$tmp_flags"
1696 # 2.6.38 export simple_setattr
1698 AC_DEFUN([LC_EXPORT_SIMPLE_SETATTR],
1699 [LB_CHECK_SYMBOL_EXPORT([simple_setattr],
1701 AC_DEFINE(HAVE_SIMPLE_SETATTR, 1,
1702 [simple_setattr is exported by the kernel])
1708 # 2.6.39 remove unplug_fn from request_queue.
1710 AC_DEFUN([LC_REQUEST_QUEUE_UNPLUG_FN],
1711 [AC_MSG_CHECKING([if request_queue has unplug_fn field])
1712 LB_LINUX_TRY_COMPILE([
1713 #include <linux/blkdev.h>
1715 do{ }while(sizeof(((struct request_queue *)0)->unplug_fn));
1717 AC_DEFINE(HAVE_REQUEST_QUEUE_UNPLUG_FN, 1,
1718 [request_queue has unplug_fn field])
1719 AC_MSG_RESULT([yes])
1726 # 2.6.39 replace get_sb with mount in struct file_system_type
1728 AC_DEFUN([LC_HAVE_FSTYPE_MOUNT],
1729 [AC_MSG_CHECKING([if file_system_type has mount field])
1730 LB_LINUX_TRY_COMPILE([
1731 #include <linux/fs.h>
1733 struct file_system_type fst;
1734 void *i = (void *) fst.mount;
1736 AC_DEFINE(HAVE_FSTYPE_MOUNT, 1,
1737 [struct file_system_type has mount field])
1738 AC_MSG_RESULT([yes])
1745 # 3.0 dirty_inode() has a flag parameter
1746 # see kernel commit aa38572954ade525817fe88c54faebf85e5a61c0
1748 AC_DEFUN([LC_DIRTY_INODE_WITH_FLAG],
1749 [AC_MSG_CHECKING([if dirty_inode super_operation takes flag])
1750 LB_LINUX_TRY_COMPILE([
1751 #include <linux/fs.h>
1753 struct inode *inode;
1754 inode->i_sb->s_op->dirty_inode(NULL, 0);
1756 AC_DEFINE(HAVE_DIRTY_INODE_HAS_FLAG, 1,
1757 [dirty_inode super_operation takes flag])
1758 AC_MSG_RESULT([yes])
1765 # 2.6.38 generic_permission taken 4 parameters.
1766 # in fact, it means rcu-walk aware permission bring.
1768 # 3.1 generic_permission taken 2 parameters.
1769 # see kernel commit 2830ba7f34ebb27c4e5b8b6ef408cd6d74860890
1771 AC_DEFUN([LC_GENERIC_PERMISSION],
1772 [AC_MSG_CHECKING([if generic_permission take 2 or 4 arguments])
1773 LB_LINUX_TRY_COMPILE([
1774 #include <linux/fs.h>
1776 generic_permission(NULL, 0);
1778 AC_DEFINE(HAVE_GENERIC_PERMISSION_2ARGS, 1,
1779 [generic_permission taken 2 arguments])
1780 AC_MSG_RESULT([yes, 2 args])
1782 LB_LINUX_TRY_COMPILE([
1783 #include <linux/fs.h>
1785 generic_permission(NULL, 0, 0, NULL);
1787 AC_DEFINE(HAVE_GENERIC_PERMISSION_4ARGS, 1,
1788 [generic_permission taken 4 arguments])
1789 AC_MSG_RESULT([yes, 4 args])
1797 # 3.1 renames lock-manager ops(lock_manager_operations) from fl_xxx to lm_xxx
1798 # see kernel commit 8fb47a4fbf858a164e973b8ea8ef5e83e61f2e50
1800 AC_DEFUN([LC_LM_XXX_LOCK_MANAGER_OPS],
1801 [AC_MSG_CHECKING([if lock-manager ops renamed to lm_xxx])
1802 LB_LINUX_TRY_COMPILE([
1803 #include <linux/fs.h>
1805 struct lock_manager_operations lm_ops;
1806 lm_ops.lm_compare_owner = NULL;
1808 AC_DEFINE(HAVE_LM_XXX_LOCK_MANAGER_OPS, 1,
1809 [lock-manager ops renamed to lm_xxx])
1810 AC_MSG_RESULT([yes])
1817 # 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait/
1818 # inode_dio_done instead.
1819 # see kernel commit bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3
1821 AC_DEFUN([LC_INODE_DIO_WAIT],
1822 [AC_MSG_CHECKING([if inode->i_alloc_sem is killed and use inode_dio_wait/done.])
1823 LB_LINUX_TRY_COMPILE([
1824 #include <linux/fs.h>
1826 inode_dio_wait((struct inode *)0);
1827 inode_dio_done((struct inode *)0);
1829 AC_DEFINE(HAVE_INODE_DIO_WAIT, 1,
1830 [inode->i_alloc_sem is killed and use inode_dio_wait/done])
1831 AC_MSG_RESULT([yes])
1838 # 3.1 adds get_acl method to inode_operations to read ACL from disk.
1839 # see kernel commit 4e34e719e457f2e031297175410fc0bd4016a085
1841 AC_DEFUN([LC_IOP_GET_ACL],
1842 [AC_MSG_CHECKING([inode_operations has .get_acl member function])
1843 LB_LINUX_TRY_COMPILE([
1844 #include <linux/fs.h>
1846 struct inode_operations iop;
1849 AC_DEFINE(HAVE_IOP_GET_ACL, 1,
1850 [inode_operations has .get_acl member function])
1851 AC_MSG_RESULT([yes])
1858 # 3.1.1 has ext4_blocks_for_truncate
1860 AC_DEFUN([LC_BLOCKS_FOR_TRUNCATE],
1861 [AC_MSG_CHECKING([if kernel has ext4_blocks_for_truncate])
1862 LB_LINUX_TRY_COMPILE([
1863 #include <linux/fs.h>
1864 #include "$LINUX/fs/ext4/ext4_jbd2.h"
1865 #include "$LINUX/fs/ext4/truncate.h"
1867 ext4_blocks_for_truncate(NULL);
1869 AC_MSG_RESULT([yes])
1870 AC_DEFINE(HAVE_BLOCKS_FOR_TRUNCATE, 1,
1871 [kernel has ext4_blocks_for_truncate])
1878 # 3.1 introduced generic_file_llseek_size()
1880 AC_DEFUN([LC_FILE_LLSEEK_SIZE],
1881 [LB_CHECK_SYMBOL_EXPORT([generic_file_llseek_size],
1883 [AC_DEFINE(HAVE_FILE_LLSEEK_SIZE, 1,
1884 [generic_file_llseek_size is exported by the kernel])])
1888 # 3.2 request_queue.make_request_fn defined as function returns with void
1889 # see kernel commit 5a7bbad27a410350e64a2d7f5ec18fc73836c14f
1891 AC_DEFUN([LC_HAVE_VOID_MAKE_REQUEST_FN],
1892 [AC_MSG_CHECKING([if request_queue.make_request_fn returns void but not int])
1893 LB_LINUX_TRY_COMPILE([
1894 #include <linux/blkdev.h>
1897 make_request_fn *mrf;
1898 ret = mrf(NULL, NULL);
1902 AC_DEFINE(HAVE_VOID_MAKE_REQUEST_FN, 1,
1903 [request_queue.make_request_fn returns void but not int])
1904 AC_MSG_RESULT([yes])
1909 # 3.2 protects inode->i_nlink from direct modification
1910 # see kernel commit a78ef704a8dd430225955f0709b22d4a6ba21deb
1911 # at the same time adds set_nlink(), so checks set_nlink() for it.
1913 AC_DEFUN([LC_HAVE_PROTECT_I_NLINK],
1914 [AC_MSG_CHECKING([if inode->i_nlink is protected from direct modification])
1915 LB_LINUX_TRY_COMPILE([
1916 #include <linux/fs.h>
1921 AC_DEFINE(HAVE_PROTECT_I_NLINK, 1,
1922 [inode->i_nlink is protected from direct modification])
1923 AC_MSG_RESULT([yes])
1930 # 3.3 introduces migrate_mode.h and migratepage has 4 args
1932 AC_DEFUN([LC_HAVE_MIGRATE_HEADER],
1933 [LB_CHECK_FILE([$LINUX/include/linux/migrate.h],[
1934 AC_DEFINE(HAVE_MIGRATE_H, 1,
1935 [kernel has include/linux/migrate.h])
1936 ],[LB_CHECK_FILE([$LINUX/include/linux/migrate_mode.h],[
1937 AC_DEFINE(HAVE_MIGRATE_MODE_H, 1,
1938 [kernel has include/linux/migrate_mode.h])
1945 AC_DEFUN([LC_MIGRATEPAGE_4ARGS],
1946 [AC_MSG_CHECKING([if address_space_operations.migratepage has 4 args])
1947 LB_LINUX_TRY_COMPILE([
1948 #include <linux/fs.h>
1949 #ifdef HAVE_MIGRATE_H
1950 #include <linux/migrate.h>
1951 #elif defined(HAVE_MIGRATE_MODE_H)
1952 #include <linux/migrate_mode.h>
1955 struct address_space_operations aops;
1957 aops.migratepage(NULL, NULL, NULL, MIGRATE_ASYNC);
1959 AC_DEFINE(HAVE_MIGRATEPAGE_4ARGS, 1,
1960 [address_space_operations.migratepage has 4 args])
1961 AC_MSG_RESULT([yes])
1968 # 3.3 switchs super_operations to use dentry as parameter (but not vfsmount)
1969 # see kernel commit 34c80b1d93e6e20ca9dea0baf583a5b5510d92d4
1971 AC_DEFUN([LC_SUPEROPS_USE_DENTRY],
1972 [AC_MSG_CHECKING([if super_operations use dentry as parameter])
1973 tmp_flags="$EXTRA_KCFLAGS"
1974 EXTRA_KCFLAGS="-Werror"
1975 LB_LINUX_TRY_COMPILE([
1976 #include <linux/fs.h>
1977 int show_options(struct seq_file *seq, struct dentry *root){
1981 struct super_operations ops;
1982 ops.show_options = show_options;
1984 AC_DEFINE(HAVE_SUPEROPS_USE_DENTRY, 1,
1985 [super_operations use dentry as parameter])
1986 AC_MSG_RESULT([yes])
1990 EXTRA_KCFLAGS="$tmp_flags"
1994 # 3.3 switchs inode_operations to use umode_t as parameter (but not int)
1995 # see kernel commit 1a67aafb5f72a436ca044293309fa7e6351d6a35
1997 AC_DEFUN([LC_INODEOPS_USE_UMODE_T],
1998 [AC_MSG_CHECKING([if inode_operations use umode_t as parameter])
1999 tmp_flags="$EXTRA_KCFLAGS"
2000 EXTRA_KCFLAGS="-Werror"
2001 LB_LINUX_TRY_COMPILE([
2002 #include <linux/fs.h>
2003 #include <linux/types.h>
2004 int my_mknod(struct inode *dir, struct dentry *dchild,
2005 umode_t mode, dev_t dev)
2010 struct inode_operations ops;
2011 ops.mknod = my_mknod;
2013 AC_DEFINE(HAVE_INODEOPS_USE_UMODE_T, 1,
2014 [inode_operations use umode_t as parameter])
2015 AC_MSG_RESULT([yes])
2019 EXTRA_KCFLAGS="$tmp_flags"
2022 # 3.4 kmap_atomic removes second argument
2023 # see kernel commit 1ec9c5ddc17aa398f05646abfcbaf315b544e62f
2025 AC_DEFUN([LC_KMAP_ATOMIC_HAS_1ARG],
2026 [AC_MSG_CHECKING([if kmap_atomic has only 1 argument])
2027 LB_LINUX_TRY_COMPILE([
2028 #include <linux/highmem.h>
2032 AC_DEFINE(HAVE_KMAP_ATOMIC_HAS_1ARG, 1,
2033 [have kmap_atomic has only 1 argument])
2034 AC_MSG_RESULT([yes])
2041 # 3.4 switchs touch_atime to struct path
2042 # see kernel commit 68ac1234fb949b66941d94dce4157742799fc581
2044 AC_DEFUN([LC_TOUCH_ATIME_1ARG],
2045 [AC_MSG_CHECKING([if touch_atime use one argument])
2046 LB_LINUX_TRY_COMPILE([
2047 #include <linux/fs.h>
2049 touch_atime((struct path *)NULL);
2051 AC_DEFINE(HAVE_TOUCH_ATIME_1ARG, 1,
2052 [touch_atime use one argument])
2053 AC_MSG_RESULT([yes])
2060 # 3.4 converts d_alloc_root to d_make_root
2061 # see kernel commit 32991ab305ace7017c62f8eecbe5eb36dc32e13b
2063 AC_DEFUN([LC_HAVE_D_MAKE_ROOT],
2064 [AC_MSG_CHECKING([if have d_make_root])
2065 LB_LINUX_TRY_COMPILE([
2066 #include <linux/fs.h>
2068 d_make_root((struct inode *)NULL);
2070 AC_DEFINE(HAVE_D_MAKE_ROOT, 1,
2072 AC_MSG_RESULT([yes])
2079 # 3.5 renames end_writeback() back to clear_inode()...
2080 # see kernel commit dbd5768f87ff6fb0a4fe09c4d7b6c4a24de99430
2082 AC_DEFUN([LC_HAVE_CLEAR_INODE],
2083 [AC_MSG_CHECKING([if have clear_inode])
2084 LB_LINUX_TRY_COMPILE([
2085 #include <linux/fs.h>
2087 clear_inode((struct inode *)NULL);
2089 AC_DEFINE(HAVE_CLEAR_INODE, 1,
2091 AC_MSG_RESULT([yes])
2098 # 3.5 encode_fh has parent inode passed in directly
2099 # see kernel commit b0b0382b
2101 AC_DEFUN([LC_HAVE_ENCODE_FH_PARENT],
2102 [AC_MSG_CHECKING([if encode_fh have parent inode as parameter])
2103 tmp_flags="$EXTRA_KCFLAGS"
2104 EXTRA_KCFLAGS="-Werror"
2105 LB_LINUX_TRY_COMPILE([
2106 #include <linux/exportfs.h>
2107 #include <linux/fs.h>
2108 #include <linux/types.h>
2109 int ll_encode_fh(struct inode *i, __u32 *a, int *b, struct inode *p)
2114 struct export_operations exp_op;
2115 exp_op.encode_fh = ll_encode_fh;
2117 AC_DEFINE(HAVE_ENCODE_FH_PARENT, 1,
2118 [have parent inode as parameter])
2119 AC_MSG_RESULT([yes])
2123 EXTRA_KCFLAGS="$tmp_flags"
2126 # 3.5 has generic_file_llseek_size with 5 args
2127 AC_DEFUN([LC_FILE_LLSEEK_SIZE_5ARG],
2128 [AC_MSG_CHECKING([if kernel has generic_file_llseek_size with 5 args])
2129 LB_LINUX_TRY_COMPILE([
2130 #include <linux/fs.h>
2132 generic_file_llseek_size(NULL, 0, 0, 0, 0);
2134 AC_MSG_RESULT([yes])
2135 AC_DEFINE(HAVE_FILE_LLSEEK_SIZE_5ARGS, 1,
2136 [kernel has generic_file_llseek_size with 5 args])
2143 # 3.6 switch i_dentry/d_alias from list to hlist
2145 AC_DEFUN([LC_HAVE_DENTRY_D_ALIAS_HLIST],
2146 [AC_MSG_CHECKING([if i_dentry/d_alias uses hlist])
2147 tmp_flags="$EXTRA_KCFLAGS"
2148 EXTRA_KCFLAGS="-Werror"
2149 LB_LINUX_TRY_COMPILE([
2150 #include <linux/fs.h>
2151 #include <linux/list.h>
2154 struct dentry dentry;
2155 struct hlist_head head;
2156 struct hlist_node node;
2157 inode.i_dentry = head;
2158 dentry.d_alias = node;
2160 AC_DEFINE(HAVE_DENTRY_D_ALIAS_HLIST, 1,
2161 [have i_dentry/d_alias uses hlist])
2162 AC_MSG_RESULT([yes])
2166 EXTRA_KCFLAGS="$tmp_flags"
2170 # 3.6 dentry_open uses struct path as first argument
2171 # see kernel commit 765927b2
2173 AC_DEFUN([LC_DENTRY_OPEN_USE_PATH],
2174 [AC_MSG_CHECKING([if dentry_open uses struct path as first argument])
2175 tmp_flags="$EXTRA_KCFLAGS"
2176 EXTRA_KCFLAGS="-Werror"
2177 LB_LINUX_TRY_COMPILE([
2178 #include <linux/fs.h>
2179 #include <linux/path.h>
2182 dentry_open(&path, 0, NULL);
2184 AC_DEFINE(HAVE_DENTRY_OPEN_USE_PATH, 1,
2185 [dentry_open uses struct path as first argument])
2186 AC_MSG_RESULT([yes])
2190 EXTRA_KCFLAGS="$tmp_flags"
2194 # 3.6 vfs adds iop->atomic_open
2196 AC_DEFUN([LC_HAVE_IOP_ATOMIC_OPEN],
2197 [AC_MSG_CHECKING([if iop has atomic_open])
2198 LB_LINUX_TRY_COMPILE([
2199 #include <linux/fs.h>
2201 struct inode_operations iop;
2202 iop.atomic_open = NULL;
2204 AC_DEFINE(HAVE_IOP_ATOMIC_OPEN, 1,
2205 [have iop atomic_open])
2206 AC_MSG_RESULT([yes])
2213 # 3.7 posix_acl_{to,from}_xattr take struct user_namespace
2215 AC_DEFUN([LC_HAVE_POSIXACL_USER_NS],
2216 [AC_MSG_CHECKING([if posix_acl_to_xattr takes struct user_namespace])
2217 LB_LINUX_TRY_COMPILE([
2218 #include <linux/fs.h>
2219 #include <linux/posix_acl_xattr.h>
2221 posix_acl_to_xattr((struct user_namespace *)NULL, NULL, NULL, 0);
2223 AC_DEFINE(HAVE_POSIXACL_USER_NS, 1,
2224 [posix_acl_to_xattr takes struct user_namespace])
2225 AC_MSG_RESULT([yes])
2234 # Lustre linux kernel checks
2236 AC_DEFUN([LC_PROG_LINUX],
2240 LC_CONFIG_LIBLUSTRE_RECOVERY
2241 LC_CONFIG_HEALTH_CHECK_WRITE
2242 LC_CONFIG_LRU_RESIZE
2243 LC_LLITE_LLOOP_MODULE
2246 LC_EXPORT_TRUNCATE_COMPLETE
2247 LC_EXPORT_D_REHASH_COND
2248 LC_EXPORT___D_REHASH
2249 LC_EXPORT_NODE_TO_CPUMASK
2263 LC_UMOUNTBEGIN_HAS_VFSMOUNT
2265 #2.6.18 + RHEL5 (fc6)
2273 LC_CANCEL_DIRTY_PAGE
2275 # raid5-zerocopy patch
2279 LC_INVALIDATE_BDEV_2ARG
2280 LC_ASYNC_BLOCK_CIPHER
2282 LC_STRUCT_BLKCIPHER_DESC
2283 LC_FS_RENAME_DOES_D_MOVE
2286 LC_UNREGISTER_BLKDEV_RETURN_INT
2287 LC_KERNEL_SPLICE_READ
2292 LC_EXPORTFS_DECODE_FH
2302 LC_FS_STRUCT_USE_PATH
2305 LC_SECURITY_PLUG # for SLES10 SP2
2306 LC_PGMKWRITE_USE_VMFAULT
2307 LC_PGMKWRITE_COMPACT
2308 LC_INODE_PERMISION_2ARGS
2310 LC_READ_INODE_IN_SBOPS
2311 LC_EXPORT_INODE_PERMISSION
2317 # 2.6.27.15-2 sles11
2321 LC_SB_ANY_QUOTA_ACTIVE
2322 LC_SB_HAS_QUOTA_ACTIVE
2323 LC_EXPORT_ADD_TO_PAGE_CACHE_LRU
2326 LC_SB_ANY_QUOTA_LOADED
2329 LC_EXPORT_CPUMASK_OF_NODE
2332 LC_BLK_QUEUE_LOG_BLK_SIZE
2335 LC_REQUEST_QUEUE_LIMITS
2336 LC_EXPORT_BDI_REGISTER
2338 LC_BLK_QUEUE_MAX_SECTORS
2339 LC_BLK_QUEUE_MAX_SEGMENTS
2342 LC_EXPORT_GENERIC_ERROR_REMOVE_PAGE
2343 LC_SELINUX_IS_ENABLED
2344 LC_EXPORT_ACCESS_PROCESS_VM
2345 LC_VFS_INODE_NEWSIZE_OK
2348 LC_HAVE_DQUOT_FS_DISK_QUOTA
2349 LC_HAVE_DQUOT_SUSPEND
2353 LC_EXPORT_SIMPLE_SETATTR
2357 LC_SBOPS_EVICT_INODE
2363 LC_BLKDEV_GET_BY_DEV
2364 LC_GENERIC_PERMISSION
2365 LC_QUOTA_ON_USE_PATH
2372 LC_REQUEST_QUEUE_UNPLUG_FN
2373 LC_HAVE_FSTYPE_MOUNT
2376 LC_DIRTY_INODE_WITH_FLAG
2379 LC_LM_XXX_LOCK_MANAGER_OPS
2385 LC_BLOCKS_FOR_TRUNCATE
2388 LC_HAVE_VOID_MAKE_REQUEST_FN
2389 LC_HAVE_PROTECT_I_NLINK
2392 LC_HAVE_MIGRATE_HEADER
2393 LC_MIGRATEPAGE_4ARGS
2394 LC_SUPEROPS_USE_DENTRY
2395 LC_INODEOPS_USE_UMODE_T
2400 LC_KMAP_ATOMIC_HAS_1ARG
2404 LC_HAVE_ENCODE_FH_PARENT
2405 LC_FILE_LLSEEK_SIZE_5ARG
2408 LC_HAVE_DENTRY_D_ALIAS_HLIST
2409 LC_DENTRY_OPEN_USE_PATH
2410 LC_HAVE_IOP_ATOMIC_OPEN
2413 LC_HAVE_POSIXACL_USER_NS
2415 if test x$enable_server = xyes ; then
2416 AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
2417 LC_FUNC_DEV_SET_RDONLY
2425 # LC_CONFIG_CLIENT_SERVER
2427 # Build client/server sides of Lustre
2429 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
2430 [AC_MSG_CHECKING([whether to build Lustre server support])
2431 AC_ARG_ENABLE([server],
2432 AC_HELP_STRING([--disable-server],
2433 [disable Lustre server support]),
2434 [],[enable_server='yes'])
2435 AC_MSG_RESULT([$enable_server])
2437 AC_MSG_CHECKING([whether to build Lustre client support])
2438 AC_ARG_ENABLE([client],
2439 AC_HELP_STRING([--disable-client],
2440 [disable Lustre client support]),
2441 [],[enable_client='yes'])
2442 AC_MSG_RESULT([$enable_client])])
2445 # LC_CONFIG_LIBLUSTRE
2447 # whether to build liblustre
2449 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
2450 [AC_MSG_CHECKING([whether to build Lustre library])
2451 AC_ARG_ENABLE([liblustre],
2452 AC_HELP_STRING([--disable-liblustre],
2453 [disable building of Lustre library]),
2454 [],[enable_liblustre=$with_sysio])
2455 AC_MSG_RESULT([$enable_liblustre])
2456 # only build sysio if liblustre is built
2457 with_sysio="$enable_liblustre"
2459 AC_MSG_CHECKING([whether to build liblustre tests])
2460 AC_ARG_ENABLE([liblustre-tests],
2461 AC_HELP_STRING([--enable-liblustre-tests],
2462 [enable liblustre tests, if --disable-tests is used]),
2463 [],[enable_liblustre_tests=$enable_tests])
2464 if test x$enable_liblustre != xyes ; then
2465 enable_liblustre_tests='no'
2467 AC_MSG_RESULT([$enable_liblustre_tests])
2469 AC_MSG_CHECKING([whether to enable liblustre acl])
2470 AC_ARG_ENABLE([liblustre-acl],
2471 AC_HELP_STRING([--disable-liblustre-acl],
2472 [disable ACL support for liblustre]),
2473 [],[enable_liblustre_acl=yes])
2474 AC_MSG_RESULT([$enable_liblustre_acl])
2475 if test x$enable_liblustre_acl = xyes ; then
2476 AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
2479 # 2.6.29 change prepare/commit_write to write_begin/end
2480 AC_DEFUN([LC_WRITE_BEGIN_END],
2481 [AC_MSG_CHECKING([if kernel has .write_begin/end])
2482 LB_LINUX_TRY_COMPILE([
2483 #include <linux/fs.h>
2484 #include <linux/pagemap.h>
2485 #ifdef HAVE_LINUX_MMTYPES_H
2486 #include <linux/mm_types.h>
2489 struct address_space_operations aops;
2492 aops.write_begin = NULL;
2493 aops.write_end = NULL;
2494 page = grab_cache_page_write_begin(NULL, 0, 0);
2496 AC_MSG_RESULT([yes])
2497 AC_DEFINE(HAVE_KERNEL_WRITE_BEGIN_END, 1,
2498 [kernel has .write_begin/end])
2504 # 2.6.29 blkdev_put has 2 arguments
2505 AC_DEFUN([LC_BLKDEV_PUT_2ARGS],
2506 [AC_MSG_CHECKING([blkdev_put needs 2 parameters])
2507 LB_LINUX_TRY_COMPILE([
2508 #include <linux/fs.h>
2510 blkdev_put(NULL, 0);
2512 AC_DEFINE(HAVE_BLKDEV_PUT_2ARGS, 1,
2513 [blkdev_put needs 2 paramters])
2514 AC_MSG_RESULT([yes])
2520 # 2.6.29 dentry_open has 4 arguments
2521 AC_DEFUN([LC_DENTRY_OPEN_4ARGS],
2522 [AC_MSG_CHECKING([dentry_open needs 4 parameters])
2523 LB_LINUX_TRY_COMPILE([
2524 #include <linux/fs.h>
2526 dentry_open(NULL, NULL, 0, NULL);
2528 AC_DEFINE(HAVE_DENTRY_OPEN_4ARGS, 1,
2529 [dentry_open needs 4 paramters])
2530 AC_MSG_RESULT([yes])
2536 # 2.6.29 split file and anonymous page queues
2537 AC_DEFUN([LC_PAGEVEC_LRU_ADD_FILE],
2538 [AC_MSG_CHECKING([if kernel has .pagevec_lru_add_file])
2539 LB_LINUX_TRY_COMPILE([
2540 #include <linux/mm.h>
2541 #include <linux/pagevec.h>
2543 struct pagevec lru_pagevec;
2545 pagevec_init(&lru_pagevec, 0);
2546 pagevec_lru_add_file(&lru_pagevec);
2548 AC_MSG_RESULT([yes])
2549 AC_DEFINE(HAVE_PAGEVEC_LRU_ADD_FILE, 1,
2550 [kernel has .pagevec_lru_add_file])
2559 AC_ARG_ENABLE(mpitests,
2560 AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
2561 [include mpi tests]),
2572 MPICC_WRAPPER=$enableval
2582 if test x$enable_mpitests != xno; then
2583 AC_MSG_CHECKING([whether mpitests can be built])
2591 MPI_Initialized(&flag);
2594 AC_MSG_RESULT([yes])
2601 AC_SUBST(MPICC_WRAPPER)
2603 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
2604 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
2607 LC_CONFIG_LIBLUSTRE_RECOVERY
2613 # whether to enable quota support global control
2615 AC_DEFUN([LC_CONFIG_QUOTA],
2616 [AC_ARG_ENABLE([quota],
2617 AC_HELP_STRING([--enable-quota],
2618 [enable quota support]),
2619 [],[enable_quota='yes'])
2622 AC_DEFUN([LC_QUOTA],
2626 AC_CHECK_HEADER(sys/quota.h,
2627 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
2628 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
2634 # whether to enable split support
2636 AC_DEFUN([LC_CONFIG_SPLIT],
2637 [AC_MSG_CHECKING([whether to enable split support])
2638 AC_ARG_ENABLE([split],
2639 AC_HELP_STRING([--enable-split],
2640 [enable split support]),
2641 [],[enable_split='no'])
2642 AC_MSG_RESULT([$enable_split])
2643 if test x$enable_split != xno; then
2644 AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
2648 # RHEL5(2.6.18) has tux_info
2649 AC_DEFUN([LC_TASK_CLENV_TUX_INFO],
2650 [AC_MSG_CHECKING([tux_info])
2651 LB_LINUX_TRY_COMPILE([
2652 #include <linux/sched.h>
2654 struct task_struct task;
2657 AC_MSG_RESULT([yes])
2658 AC_DEFINE(LL_TASK_CL_ENV, tux_info, [have tux_info])
2659 have_task_clenv_store='yes'
2666 # LC_LLITE_LLOOP_MODULE
2667 # lloop_llite.ko does not currently work with page sizes
2670 AC_DEFUN([LC_LLITE_LLOOP_MODULE],
2671 [AC_MSG_CHECKING([whether to enable llite_lloop module])
2672 LB_LINUX_TRY_COMPILE([
2673 #include <asm/page.h>
2675 #if PAGE_SIZE >= 65536
2676 #error "PAGE_SIZE >= 65536"
2679 enable_llite_lloop_module='yes'
2680 AC_MSG_RESULT([yes])
2682 enable_llite_lloop_module='no'
2690 # configure support for optional OSD implementation
2692 AC_DEFUN([LC_OSD_ADDON],
2693 [AC_MSG_CHECKING([for osd])
2695 AC_HELP_STRING([--with-osd=path],
2696 [set path to optional osd]),
2699 no) ENABLEOSDADDON=0
2701 *) OSDADDON="${with_osd}"
2708 if test $ENABLEOSDADDON -eq 0; then
2712 OSDMODNAME=`basename $OSDADDON`
2713 if test -e $LUSTRE/$OSDMODNAME; then
2714 AC_MSG_RESULT([can't link])
2716 elif ln -s $OSDADDON $LUSTRE/$OSDMODNAME; then
2717 AC_MSG_RESULT([$OSDMODNAME])
2718 OSDADDON="subdir-m += $OSDMODNAME"
2720 AC_MSG_RESULT([can't link])
2730 # other configure checks
2732 AC_DEFUN([LC_CONFIGURE],
2733 [LC_CONFIG_OBD_BUFFER_SIZE
2735 if test $target_cpu == "i686" -o $target_cpu == "x86_64"; then
2736 CFLAGS="$CFLAGS -Werror"
2739 # maximum MDS thread count
2742 # include/liblustre.h
2743 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
2745 # liblustre/llite_lib.h
2746 AC_CHECK_HEADERS([xtio.h file.h])
2749 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
2752 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
2753 AC_CHECK_FUNCS([inet_ntoa])
2755 # libsysio/src/readlink.c
2758 # lvfs/prng.c - depends on linux/types.h from liblustre/dir.c
2759 AC_CHECK_HEADERS([linux/random.h], [], [],
2760 [#ifdef HAVE_LINUX_TYPES_H
2761 # include <linux/types.h>
2766 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
2768 # check for -lz support
2772 [AC_CHECK_HEADERS([zlib.h],
2774 AC_DEFINE([HAVE_ADLER], 1,
2775 [support alder32 checksum type])],
2776 [AC_MSG_WARN([No zlib-devel package found,
2777 unable to use adler32 checksum])])],
2778 [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
2783 AC_CHECK_LIB([selinux],
2784 [is_selinux_enabled],
2785 [AC_CHECK_HEADERS([selinux.h],
2786 [SELINUX="-lselinux"
2787 AC_DEFINE([HAVE_SELINUX], 1,
2788 [support for selinux ])],
2789 [AC_MSG_WARN([No selinux-devel package found,
2790 unable to build selinux enabled
2792 [AC_MSG_WARN([No selinux package found, unable to build selinux
2798 AC_ARG_ENABLE([mindf],
2799 AC_HELP_STRING([--enable-mindf],
2800 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
2802 if test "$enable_mindf" = "yes" ; then
2803 AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
2806 AC_ARG_ENABLE([fail_alloc],
2807 AC_HELP_STRING([--disable-fail-alloc],
2808 [disable randomly alloc failure]),
2809 [],[enable_fail_alloc=yes])
2810 AC_MSG_CHECKING([whether to randomly failing memory alloc])
2811 AC_MSG_RESULT([$enable_fail_alloc])
2812 if test x$enable_fail_alloc != xno ; then
2813 AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
2816 AC_ARG_ENABLE([invariants],
2817 AC_HELP_STRING([--enable-invariants],
2818 [enable invariant checking (cpu intensive)]),
2820 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
2821 AC_MSG_RESULT([$enable_invariants])
2822 if test x$enable_invariants = xyes ; then
2823 AC_DEFINE([CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK], 1, [enable invariant checking])
2826 AC_ARG_ENABLE([lu_ref],
2827 AC_HELP_STRING([--enable-lu_ref],
2828 [enable lu_ref reference tracking code]),
2830 AC_MSG_CHECKING([whether to track references with lu_ref])
2831 AC_MSG_RESULT([$enable_lu_ref])
2832 if test x$enable_lu_ref = xyes ; then
2833 AC_DEFINE([USE_LU_REF], 1, [enable lu_ref reference tracking code])
2836 AC_ARG_ENABLE([pgstate-track],
2837 AC_HELP_STRING([--enable-pgstate-track],
2838 [enable page state tracking]),
2839 [enable_pgstat_track='yes'],[])
2840 AC_MSG_CHECKING([whether to enable page state tracking])
2841 AC_MSG_RESULT([$enable_pgstat_track])
2842 if test x$enable_pgstat_track = xyes ; then
2843 AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
2844 [enable page state tracking code])
2851 LC_DENTRY_OPEN_4ARGS
2852 LC_PAGEVEC_LRU_ADD_FILE
2859 # AM_CONDITIONALS for lustre
2861 AC_DEFUN([LC_CONDITIONALS],
2862 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
2863 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
2864 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
2865 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
2866 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
2867 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
2868 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
2869 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
2870 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
2871 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
2872 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
2873 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
2874 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
2875 AM_CONDITIONAL(LLITE_LLOOP, test x$enable_llite_lloop_module = xyes)
2881 # files that should be generated with AC_OUTPUT
2883 AC_DEFUN([LC_CONFIG_FILES],
2887 lustre/autoconf/Makefile
2888 lustre/conf/Makefile
2889 lustre/contrib/Makefile
2891 lustre/include/Makefile
2892 lustre/include/lustre_ver.h
2893 lustre/include/linux/Makefile
2894 lustre/include/darwin/Makefile
2895 lustre/include/lustre/Makefile
2896 lustre/kernel_patches/targets/2.6-rhel6.target
2897 lustre/kernel_patches/targets/2.6-rhel5.target
2898 lustre/kernel_patches/targets/2.6-sles11.target
2899 lustre/kernel_patches/targets/3.0-sles11.target
2900 lustre/kernel_patches/targets/2.6-fc11.target
2901 lustre/kernel_patches/targets/2.6-fc12.target
2902 lustre/kernel_patches/targets/2.6-fc15.target
2903 lustre/kernel_patches/targets/3.x-fc18.target
2904 lustre/ldlm/Makefile
2906 lustre/fid/autoMakefile
2907 lustre/liblustre/Makefile
2908 lustre/liblustre/tests/Makefile
2909 lustre/liblustre/tests/mpi/Makefile
2910 lustre/llite/Makefile
2911 lustre/llite/autoMakefile
2912 lustre/lclient/Makefile
2914 lustre/lov/autoMakefile
2915 lustre/lvfs/Makefile
2916 lustre/lvfs/autoMakefile
2918 lustre/mdc/autoMakefile
2920 lustre/lmv/autoMakefile
2921 lustre/lfsck/Makefile
2922 lustre/lfsck/autoMakefile
2924 lustre/mdt/autoMakefile
2926 lustre/mdd/autoMakefile
2928 lustre/fld/autoMakefile
2929 lustre/obdclass/Makefile
2930 lustre/obdclass/autoMakefile
2931 lustre/obdclass/linux/Makefile
2932 lustre/obdecho/Makefile
2933 lustre/obdecho/autoMakefile
2935 lustre/ofd/autoMakefile
2937 lustre/osc/autoMakefile
2939 lustre/ost/autoMakefile
2940 lustre/osd-ldiskfs/Makefile
2941 lustre/osd-ldiskfs/autoMakefile
2942 lustre/osd-zfs/Makefile
2943 lustre/osd-zfs/autoMakefile
2945 lustre/mgc/autoMakefile
2947 lustre/mgs/autoMakefile
2948 lustre/target/Makefile
2949 lustre/ptlrpc/Makefile
2950 lustre/ptlrpc/autoMakefile
2951 lustre/ptlrpc/gss/Makefile
2952 lustre/ptlrpc/gss/autoMakefile
2953 lustre/quota/Makefile
2954 lustre/quota/autoMakefile
2955 lustre/scripts/Makefile
2956 lustre/tests/Makefile
2957 lustre/tests/mpi/Makefile
2958 lustre/utils/Makefile
2959 lustre/utils/gss/Makefile
2961 lustre/osp/autoMakefile
2963 lustre/lod/autoMakefile
2964 lustre/obdclass/darwin/Makefile