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$enable_lru_resize != xno; then
206 AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])
211 # Quota support. The kernel must support CONFIG_QUOTA.
213 AC_DEFUN([LC_QUOTA_CONFIG],
214 [LB_LINUX_CONFIG_IM([QUOTA],[],[
215 AC_MSG_ERROR([Lustre quota requires that CONFIG_QUOTA is enabled in your kernel.])
219 # truncate_complete_page() was exported from RHEL5/SLES10, but not in SLES11 SP0 (2.6.27)
220 # remove_from_page_cache() was exported between 2.6.35 and 2.6.38
221 # delete_from_page_cache() is exported from 2.6.39
222 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE],
223 [LB_CHECK_SYMBOL_EXPORT([truncate_complete_page],
225 [AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
226 [kernel export truncate_complete_page])])
227 LB_CHECK_SYMBOL_EXPORT([remove_from_page_cache],
229 [AC_DEFINE(HAVE_REMOVE_FROM_PAGE_CACHE, 1,
230 [kernel export remove_from_page_cache])])
231 LB_CHECK_SYMBOL_EXPORT([delete_from_page_cache],
233 [AC_DEFINE(HAVE_DELETE_FROM_PAGE_CACHE, 1,
234 [kernel export delete_from_page_cache])])
240 AC_DEFUN([LC_BIT_SPINLOCK_H],
241 [LB_CHECK_FILE([$LINUX/include/linux/bit_spinlock.h],[
242 AC_MSG_CHECKING([if bit_spinlock.h can be compiled])
243 LB_LINUX_TRY_COMPILE([
244 #include <asm/processor.h>
245 #include <linux/spinlock.h>
246 #include <linux/bit_spinlock.h>
249 AC_DEFINE(HAVE_BIT_SPINLOCK_H, 1, [Kernel has bit_spinlock.h])
260 AC_DEFUN([LC_CAPA_CRYPTO],
261 [LB_LINUX_CONFIG_IM([CRYPTO],[],[
262 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])
264 LB_LINUX_CONFIG_IM([CRYPTO_HMAC],[],[
265 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])
267 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],[
268 AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])
273 # LC_CONFIG_RMTCLIENT
276 dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
278 AC_DEFUN([LC_CONFIG_RMTCLIENT],
279 [LB_LINUX_CONFIG_IM([CRYPTO_AES],[],[
280 AC_MSG_WARN([Lustre remote client require that CONFIG_CRYPTO_AES is enabled in your kernel.])
285 # LC_CONFIG_GSS_KEYRING (default enabled, if gss is enabled)
287 AC_DEFUN([LC_CONFIG_GSS_KEYRING],
288 [AC_MSG_CHECKING([whether to enable gss keyring backend])
289 AC_ARG_ENABLE([gss_keyring],
290 [AC_HELP_STRING([--disable-gss-keyring],
291 [disable gss keyring backend])],
292 [],[enable_gss_keyring='yes'])
293 AC_MSG_RESULT([$enable_gss_keyring])
295 if test x$enable_gss_keyring != xno; then
296 LB_LINUX_CONFIG_IM([KEYS],[],
297 [AC_MSG_ERROR([GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.])])
299 AC_CHECK_LIB([keyutils], [keyctl_search], [],
300 [AC_MSG_ERROR([libkeyutils is not found, which is required by gss keyring backend])],)
302 AC_DEFINE([HAVE_GSS_KEYRING], [1],
303 [Define this if you enable gss keyring backend])
307 AC_DEFUN([LC_CONFIG_SUNRPC],
308 [LB_LINUX_CONFIG_IM([SUNRPC],[],
309 [AC_MSG_ERROR([kernel SUNRPC support is required by using GSS.])])
313 # LC_CONFIG_GSS (default disabled)
315 # Build gss and related tools of Lustre. Currently both kernel and user space
316 # parts are depend on linux platform.
318 AC_DEFUN([LC_CONFIG_GSS],
319 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
321 [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
322 [],[enable_gss='no'])
323 AC_MSG_RESULT([$enable_gss])
325 if test x$enable_gss == xyes; then
326 LC_CONFIG_GSS_KEYRING
329 AC_DEFINE([HAVE_GSS], [1], [Define this if you enable gss])
331 LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
332 [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
333 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
334 [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
335 LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
336 [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
337 LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
338 [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
340 AC_CHECK_LIB([gssapi], [gss_export_lucid_sec_context],
341 [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"],
342 [AC_CHECK_LIB([gssglue], [gss_export_lucid_sec_context],
343 [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue"],
344 [AC_MSG_ERROR([libgssapi or libgssglue is not found, which is required by GSS.])])],)
346 AC_SUBST(GSSAPI_LIBS)
354 # ~2.6.12 merge patch from oracle to convert tree_lock from spinlock to rwlock
355 # yet tree_lock is converted from rwlock to spin_lock since v2.6.26
356 AC_DEFUN([LC_RW_TREE_LOCK],
357 [AC_MSG_CHECKING([if kernel has tree_lock as rwlock])
358 tmp_flags="$EXTRA_KCFLAGS"
359 EXTRA_KCFLAGS="-Werror"
360 LB_LINUX_TRY_COMPILE([
361 #include <linux/fs.h>
363 struct address_space a;
365 write_lock(&a.tree_lock);
368 AC_DEFINE(HAVE_RW_TREE_LOCK, 1, [kernel has tree_lock as rw_lock])
372 EXTRA_KCFLAGS="$tmp_flags"
375 #2.6.18 + RHEL5 (fc6)
380 # fiemap.h is added since v2.6.28
381 # RHEL5 2.6.18 has it, while SLES10 2.6.27 does not
383 AC_DEFUN([LC_LINUX_FIEMAP_H],
384 [LB_CHECK_FILE([$LINUX/include/linux/fiemap.h],[
385 AC_MSG_CHECKING([if fiemap.h can be compiled])
386 LB_LINUX_TRY_COMPILE([
387 #include <linux/types.h>
388 #include <linux/fiemap.h>
391 AC_DEFINE(HAVE_LINUX_FIEMAP_H, 1, [Kernel has fiemap.h])
399 # raid5-zerocopy patch
404 # In order to support raid5 zerocopy patch, we have to patch the kernel to make
405 # it support constant page, which means the page won't be modified during the
408 AC_DEFUN([LC_PAGE_CONSTANT],
409 [AC_MSG_CHECKING([if kernel have PageConstant defined])
410 LB_LINUX_TRY_COMPILE([
411 #include <linux/mm.h>
412 #include <linux/page-flags.h>
415 #error "Have no raid5 zcopy patch"
419 AC_DEFINE(HAVE_PAGE_CONSTANT, 1, [kernel have PageConstant supported])
428 # 2.6.19 check for FS_RENAME_DOES_D_MOVE flag
430 AC_DEFUN([LC_FS_RENAME_DOES_D_MOVE],
431 [AC_MSG_CHECKING([if kernel has FS_RENAME_DOES_D_MOVE flag])
432 LB_LINUX_TRY_COMPILE([
433 #include <linux/fs.h>
435 int v __attribute__ ((unused));
436 v = FS_RENAME_DOES_D_MOVE;
439 AC_DEFINE(HAVE_FS_RENAME_DOES_D_MOVE, 1, [kernel has FS_RENAME_DOES_D_MOVE flag])
447 # 2.6.23 have return type 'void' for unregister_blkdev
448 AC_DEFUN([LC_UNREGISTER_BLKDEV_RETURN_INT],
449 [AC_MSG_CHECKING([if unregister_blkdev return int])
450 LB_LINUX_TRY_COMPILE([
451 #include <linux/fs.h>
453 int i __attribute__ ((unused));
454 i = unregister_blkdev(0,NULL);
457 AC_DEFINE(HAVE_UNREGISTER_BLKDEV_RETURN_INT, 1,
458 [unregister_blkdev return int])
464 # 2.6.23 add code to wait other users to complete before removing procfs entry
465 AC_DEFUN([LC_PROCFS_USERS],
466 [AC_MSG_CHECKING([if kernel has pde_users member in procfs entry struct])
467 LB_LINUX_TRY_COMPILE([
468 #include <linux/proc_fs.h>
470 struct proc_dir_entry pde;
475 AC_DEFINE(HAVE_PROCFS_USERS, 1,
476 [kernel has pde_users member in procfs entry struct])
478 LB_LINUX_TRY_COMPILE([
479 #include "$LINUX/fs/proc/internal.h"
481 struct proc_dir_entry_aux pde_aux;
483 pde_aux.pde_users = 0;
486 AC_DEFINE(HAVE_PROCFS_USERS, 1,
487 [kernel has pde_users member in proc_dir_entry_aux])
496 # 2.6.24 has bio_endio with 2 args
497 AC_DEFUN([LC_BIO_ENDIO_2ARG],
498 [AC_MSG_CHECKING([if kernel has bio_endio with 2 args])
499 LB_LINUX_TRY_COMPILE([
500 #include <linux/bio.h>
505 AC_DEFINE(HAVE_BIO_ENDIO_2ARG, 1,
506 [kernel has bio_endio with 2 args])
512 # 2.6.24 removes long aged procfs entry -> deleted member
513 AC_DEFUN([LC_PROCFS_DELETED],
514 [AC_MSG_CHECKING([if kernel has deleted member in procfs entry struct])
515 LB_LINUX_TRY_COMPILE([
516 #include <linux/proc_fs.h>
518 struct proc_dir_entry pde;
520 pde.deleted = sizeof(pde);
523 AC_DEFINE(HAVE_PROCFS_DELETED, 1,
524 [kernel has deleted member in procfs entry struct])
532 # 2.6.26 isn't export set_fs_pwd and change paramter in fs struct
533 AC_DEFUN([LC_FS_STRUCT_USE_PATH],
534 [AC_MSG_CHECKING([fs_struct use path structure])
535 LB_LINUX_TRY_COMPILE([
536 #include <asm/atomic.h>
537 #include <linux/spinlock.h>
538 #include <linux/fs_struct.h>
542 fs.pwd = *((struct path *)sizeof(fs));
545 AC_DEFINE(HAVE_FS_STRUCT_USE_PATH, 1,
546 [fs_struct use path structure])
556 # LC_SECURITY_PLUG # for SLES10 SP2 (2.6.27)
557 # check security plug in sles10 sp2 kernel
558 AC_DEFUN([LC_SECURITY_PLUG],
559 [AC_MSG_CHECKING([If kernel has security plug support])
560 LB_LINUX_TRY_COMPILE([
561 #include <linux/fs.h>
562 #include <linux/stddef.h>
564 notify_change(NULL, NULL, NULL);
567 AC_DEFINE(HAVE_SECURITY_PLUG, 1,
568 [SLES10 SP2 use extra parameter in vfs])
574 AC_DEFUN([LC_INODE_PERMISION_2ARGS],
575 [AC_MSG_CHECKING([inode_operations->permission has two args])
576 LB_LINUX_TRY_COMPILE([
577 #include <linux/fs.h>
579 struct inode *inode __attribute__ ((unused));
582 inode->i_op->permission(NULL, 0);
584 AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
585 [inode_operations->permission has two args])
592 # 2.6.27 use 5th parameter in quota_on for remount.
593 AC_DEFUN([LC_QUOTA_ON_5ARGS],
594 [AC_MSG_CHECKING([quota_on needs 5 parameters])
595 LB_LINUX_TRY_COMPILE([
596 #include <linux/fs.h>
597 #include <linux/quota.h>
599 struct quotactl_ops *qop = NULL;
600 qop->quota_on(NULL, 0, 0, NULL, 0);
602 AC_DEFINE(HAVE_QUOTA_ON_5ARGS, 1,
603 [quota_on needs 5 paramters])
610 # 2.6.27 use 3th parameter in quota_off for remount.
611 AC_DEFUN([LC_QUOTA_OFF_3ARGS],
612 [AC_MSG_CHECKING([quota_off needs 3 parameters])
613 LB_LINUX_TRY_COMPILE([
614 #include <linux/fs.h>
615 #include <linux/quota.h>
617 struct quotactl_ops *qop = NULL;
618 qop->quota_off(NULL, 0, 0);
620 AC_DEFINE(HAVE_QUOTA_OFF_3ARGS, 1,
621 [quota_off needs 3 paramters])
628 # 2.6.34 has quotactl_ops->[sg]et_dqblk that take struct fs_disk_quota
629 AC_DEFUN([LC_HAVE_DQUOT_FS_DISK_QUOTA],
630 tmp_flags="$EXTRA_KCFLAGS"
631 EXTRA_KCFLAGS="-Werror"
632 [AC_MSG_CHECKING([if quotactl_ops.set_dqblk takes struct fs_disk_quota])
633 LB_LINUX_TRY_COMPILE([
634 #include <linux/fs.h>
635 #include <linux/quota.h>
637 struct quotactl_ops qops = {};
638 struct fs_disk_quota fdq;
639 qops.set_dqblk(NULL, 0, 0, &fdq);
641 AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1, [quotactl_ops.set_dqblk takes struct fs_disk_quota])
646 EXTRA_KCFLAGS="$tmp_flags"
649 # 2.6.34 has renamed dquot options to dquot_*, check for dquot_suspend
650 AC_DEFUN([LC_HAVE_DQUOT_SUSPEND],
651 [AC_MSG_CHECKING([if dquot_suspend is defined])
652 LB_LINUX_TRY_COMPILE([
653 #include <linux/quotaops.h>
655 dquot_suspend(NULL, -1);
657 AC_DEFINE(HAVE_DQUOT_SUSPEND, 1, [dquot_suspend is defined])
664 # LC_LOCK_MAP_ACQUIRE
665 # after 2.6.27 lock_map_acquire replaces lock_acquire
666 AC_DEFUN([LC_LOCK_MAP_ACQUIRE],
667 [AC_MSG_CHECKING([if lock_map_acquire is defined])
668 LB_LINUX_TRY_COMPILE([
669 #include <linux/lockdep.h>
671 lock_map_acquire(NULL);
674 AC_DEFINE(HAVE_LOCK_MAP_ACQUIRE, 1,
675 [lock_map_acquire is defined])
683 # 2.6.27 sles11 remove the bi_hw_segments
684 AC_DEFUN([LC_BI_HW_SEGMENTS],
685 [AC_MSG_CHECKING([struct bio has a bi_hw_segments field])
686 LB_LINUX_TRY_COMPILE([
687 #include <linux/bio.h>
690 io.bi_hw_segments = sizeof(io);
692 AC_DEFINE(HAVE_BI_HW_SEGMENTS, 1,
693 [struct bio has a bi_hw_segments field])
701 # 2.6.27 sles11 move the quotaio_v1{2}.h from include/linux to fs
702 # 2.6.32 move the quotaio_v1{2}.h from fs to fs/quota
703 AC_DEFUN([LC_HAVE_QUOTAIO_H],
704 [LB_CHECK_FILE([$LINUX/include/linux/quotaio_v2.h],[
705 AC_DEFINE(HAVE_QUOTAIO_H, 1,
706 [kernel has include/linux/quotaio_v2.h])
707 ],[LB_CHECK_FILE([$LINUX/fs/quotaio_v2.h],[
708 AC_DEFINE(HAVE_FS_QUOTAIO_H, 1,
709 [kernel has fs/quotaio_v1.h])
710 ],[LB_CHECK_FILE([$LINUX/fs/quota/quotaio_v2.h],[
711 AC_DEFINE(HAVE_FS_QUOTA_QUOTAIO_H, 1,
712 [kernel has fs/quota/quotaio_v2.h])
722 # 2.6.32 replaces 2 functions blk_queue_max_phys_segments and blk_queue_max_hw_segments by blk_queue_max_segments
723 AC_DEFUN([LC_BLK_QUEUE_MAX_SEGMENTS],
724 [AC_MSG_CHECKING([if blk_queue_max_segments is defined])
725 LB_LINUX_TRY_COMPILE([
726 #include <linux/blkdev.h>
728 blk_queue_max_segments(NULL, 0);
731 AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
732 [blk_queue_max_segments is defined])
741 # Check if kernel has been patched for 64-bit quota limits support.
742 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
743 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
744 # that in the absence of quotaio_v1.h in the kernel headers.
746 AC_DEFUN([LC_QUOTA64],[
747 AC_MSG_CHECKING([if kernel has 64-bit quota limits support])
748 tmp_flags="$EXTRA_KCFLAGS"
749 EXTRA_KCFLAGS="-I$LINUX/fs"
750 LB_LINUX_TRY_COMPILE([
751 #include <linux/kernel.h>
752 #include <linux/fs.h>
753 #if defined(HAVE_FS_QUOTA_QUOTAIO_H)
754 # include <quota/quotaio_v2.h>
755 struct v2r1_disk_dqblk dqblk_r1;
757 #include <linux/quota.h>
758 int ver = QFMT_VFS_V1;
761 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
764 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
765 AC_MSG_ERROR([You have got no 64-bit kernel quota support.])
769 EXTRA_KCFLAGS=$tmp_flags
773 # 2.6.36 fs_struct.lock use spinlock instead of rwlock.
775 AC_DEFUN([LC_FS_STRUCT_RWLOCK],
776 [AC_MSG_CHECKING([if fs_struct.lock use rwlock])
777 LB_LINUX_TRY_COMPILE([
778 #include <asm/atomic.h>
779 #include <linux/spinlock.h>
780 #include <linux/fs_struct.h>
782 ((struct fs_struct *)0)->lock = (rwlock_t){ 0 };
784 AC_DEFINE(HAVE_FS_STRUCT_RWLOCK, 1,
785 [fs_struct.lock use rwlock])
793 # 2.6.36 super_operations add evict_inode method. it hybird of
794 # delete_inode & clear_inode.
796 AC_DEFUN([LC_SBOPS_EVICT_INODE],
797 [AC_MSG_CHECKING([if super_operations.evict_inode exist])
798 LB_LINUX_TRY_COMPILE([
799 #include <linux/fs.h>
801 ((struct super_operations *)0)->evict_inode(NULL);
803 AC_DEFINE(HAVE_SBOPS_EVICT_INODE, 1,
804 [super_operations.evict_inode() is exist in kernel])
812 # 2.6.35 file_operations.fsync taken 2 arguments.
813 # 3.0.0 file_operations.fsync takes 4 arguments.
815 AC_DEFUN([LC_FILE_FSYNC],
816 [AC_MSG_CHECKING([if file_operations.fsync takes 4 or 2 arguments])
817 LB_LINUX_TRY_COMPILE([
818 #include <linux/fs.h>
820 ((struct file_operations *)0)->fsync(NULL, 0, 0, 0);
822 AC_DEFINE(HAVE_FILE_FSYNC_4ARGS, 1,
823 [file_operations.fsync takes 4 arguments])
824 AC_MSG_RESULT([yes, 4 args])
826 LB_LINUX_TRY_COMPILE([
827 #include <linux/fs.h>
829 ((struct file_operations *)0)->fsync(NULL, 0);
831 AC_DEFINE(HAVE_FILE_FSYNC_2ARGS, 1,
832 [file_operations.fsync takes 2 arguments])
833 AC_MSG_RESULT([yes, 2 args])
841 # 2.6.37 remove kernel_locked
843 AC_DEFUN([LC_KERNEL_LOCKED],
844 [AC_MSG_CHECKING([if kernel_locked is defined])
845 LB_LINUX_TRY_COMPILE([
846 #include <linux/smp_lock.h>
851 AC_DEFINE(HAVE_KERNEL_LOCKED, 1,
852 [kernel_locked is defined])
859 # 2.6.38 dentry_operations.d_compare() taken 7 arguments.
861 AC_DEFUN([LC_D_COMPARE_7ARGS],
862 [AC_MSG_CHECKING([if d_compare taken 7 arguments])
863 LB_LINUX_TRY_COMPILE([
864 #include <linux/dcache.h>
866 ((struct dentry_operations*)0)->d_compare(NULL,NULL,NULL,NULL,0,NULL,NULL);
868 AC_DEFINE(HAVE_D_COMPARE_7ARGS, 1,
869 [d_compare need 7 arguments])
877 # 2.6.38 dentry_operations.d_delete() defined 'const' for 1st parameter.
879 AC_DEFUN([LC_D_DELETE_CONST],
880 [AC_MSG_CHECKING([if d_delete has const declare on first parameter])
881 tmp_flags="$EXTRA_KCFLAGS"
882 EXTRA_KCFLAGS="-Werror"
883 LB_LINUX_TRY_COMPILE([
884 #include <linux/dcache.h>
886 const struct dentry *d = NULL;
887 ((struct dentry_operations*)0)->d_delete(d);
889 AC_DEFINE(HAVE_D_DELETE_CONST, const,
890 [d_delete first parameter declared const])
893 AC_DEFINE(HAVE_D_DELETE_CONST, , [])
896 EXTRA_KCFLAGS="$tmp_flags"
900 # 2.6.38 dcache_lock removed. rcu-walk commited.
902 AC_DEFUN([LC_DCACHE_LOCK],
903 [AC_MSG_CHECKING([if dcache_lock is exist])
904 LB_LINUX_TRY_COMPILE([
905 #include <linux/dcache.h>
907 spin_lock(&dcache_lock);
909 AC_DEFINE(HAVE_DCACHE_LOCK, 1,
910 [dcache_lock is exist])
918 # 2.6.38 inode.i_rcu added.
920 AC_DEFUN([LC_INODE_I_RCU],
921 [AC_MSG_CHECKING([if inode.i_rcu exists])
922 LB_LINUX_TRY_COMPILE([
923 #include <linux/fs.h>
926 struct rcu_head rcu = {};
929 AC_DEFINE(HAVE_INODE_I_RCU, 1,
930 [inode.i_rcu exists])
938 # 2.6.38 export blkdev_get_by_dev
940 AC_DEFUN([LC_BLKDEV_GET_BY_DEV],
941 [LB_CHECK_SYMBOL_EXPORT([blkdev_get_by_dev],
943 AC_DEFINE(HAVE_BLKDEV_GET_BY_DEV, 1,
944 [blkdev_get_by_dev is exported by the kernel])
950 # 2.6.38 use path as 4th parameter in quota_on.
952 AC_DEFUN([LC_QUOTA_ON_USE_PATH],
953 [AC_MSG_CHECKING([quota_on use path as parameter])
954 tmp_flags="$EXTRA_KCFLAGS"
955 EXTRA_KCFLAGS="-Werror"
956 LB_LINUX_TRY_COMPILE([
957 #include <linux/fs.h>
958 #include <linux/quota.h>
960 ((struct quotactl_ops *)0)->quota_on(NULL, 0, 0, ((struct path*)0));
962 AC_DEFINE(HAVE_QUOTA_ON_USE_PATH, 1,
963 [quota_on use path as 4th paramter])
968 EXTRA_KCFLAGS="$tmp_flags"
972 # 2.6.38 export simple_setattr
974 AC_DEFUN([LC_EXPORT_SIMPLE_SETATTR],
975 [LB_CHECK_SYMBOL_EXPORT([simple_setattr],
977 AC_DEFINE(HAVE_SIMPLE_SETATTR, 1,
978 [simple_setattr is exported by the kernel])
984 # 2.6.39 remove unplug_fn from request_queue.
986 AC_DEFUN([LC_REQUEST_QUEUE_UNPLUG_FN],
987 [AC_MSG_CHECKING([if request_queue has unplug_fn field])
988 LB_LINUX_TRY_COMPILE([
989 #include <linux/blkdev.h>
991 do{ }while(sizeof(((struct request_queue *)0)->unplug_fn));
993 AC_DEFINE(HAVE_REQUEST_QUEUE_UNPLUG_FN, 1,
994 [request_queue has unplug_fn field])
1002 # 2.6.39 replace get_sb with mount in struct file_system_type
1004 AC_DEFUN([LC_HAVE_FSTYPE_MOUNT],
1005 [AC_MSG_CHECKING([if file_system_type has mount field])
1006 LB_LINUX_TRY_COMPILE([
1007 #include <linux/fs.h>
1009 struct file_system_type fst;
1010 void *i = (void *) fst.mount;
1012 AC_DEFINE(HAVE_FSTYPE_MOUNT, 1,
1013 [struct file_system_type has mount field])
1014 AC_MSG_RESULT([yes])
1021 # 3.0 dirty_inode() has a flag parameter
1022 # see kernel commit aa38572954ade525817fe88c54faebf85e5a61c0
1024 AC_DEFUN([LC_DIRTY_INODE_WITH_FLAG],
1025 [AC_MSG_CHECKING([if dirty_inode super_operation takes flag])
1026 LB_LINUX_TRY_COMPILE([
1027 #include <linux/fs.h>
1029 struct inode *inode;
1030 inode->i_sb->s_op->dirty_inode(NULL, 0);
1032 AC_DEFINE(HAVE_DIRTY_INODE_HAS_FLAG, 1,
1033 [dirty_inode super_operation takes flag])
1034 AC_MSG_RESULT([yes])
1041 # 2.6.38 generic_permission taken 4 parameters.
1042 # in fact, it means rcu-walk aware permission bring.
1044 # 3.1 generic_permission taken 2 parameters.
1045 # see kernel commit 2830ba7f34ebb27c4e5b8b6ef408cd6d74860890
1047 AC_DEFUN([LC_GENERIC_PERMISSION],
1048 [AC_MSG_CHECKING([if generic_permission take 2 or 4 arguments])
1049 LB_LINUX_TRY_COMPILE([
1050 #include <linux/fs.h>
1052 generic_permission(NULL, 0);
1054 AC_DEFINE(HAVE_GENERIC_PERMISSION_2ARGS, 1,
1055 [generic_permission taken 2 arguments])
1056 AC_MSG_RESULT([yes, 2 args])
1058 LB_LINUX_TRY_COMPILE([
1059 #include <linux/fs.h>
1061 generic_permission(NULL, 0, 0, NULL);
1063 AC_DEFINE(HAVE_GENERIC_PERMISSION_4ARGS, 1,
1064 [generic_permission taken 4 arguments])
1065 AC_MSG_RESULT([yes, 4 args])
1073 # 3.1 renames lock-manager ops(lock_manager_operations) from fl_xxx to lm_xxx
1074 # see kernel commit 8fb47a4fbf858a164e973b8ea8ef5e83e61f2e50
1076 AC_DEFUN([LC_LM_XXX_LOCK_MANAGER_OPS],
1077 [AC_MSG_CHECKING([if lock-manager ops renamed to lm_xxx])
1078 LB_LINUX_TRY_COMPILE([
1079 #include <linux/fs.h>
1081 struct lock_manager_operations lm_ops;
1082 lm_ops.lm_compare_owner = NULL;
1084 AC_DEFINE(HAVE_LM_XXX_LOCK_MANAGER_OPS, 1,
1085 [lock-manager ops renamed to lm_xxx])
1086 AC_MSG_RESULT([yes])
1093 # 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait/
1094 # inode_dio_done instead.
1095 # see kernel commit bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3
1097 AC_DEFUN([LC_INODE_DIO_WAIT],
1098 [AC_MSG_CHECKING([if inode->i_alloc_sem is killed and use inode_dio_wait/done.])
1099 LB_LINUX_TRY_COMPILE([
1100 #include <linux/fs.h>
1102 inode_dio_wait((struct inode *)0);
1103 inode_dio_done((struct inode *)0);
1105 AC_DEFINE(HAVE_INODE_DIO_WAIT, 1,
1106 [inode->i_alloc_sem is killed and use inode_dio_wait/done])
1107 AC_MSG_RESULT([yes])
1114 # 3.1 adds get_acl method to inode_operations to read ACL from disk.
1115 # see kernel commit 4e34e719e457f2e031297175410fc0bd4016a085
1117 AC_DEFUN([LC_IOP_GET_ACL],
1118 [AC_MSG_CHECKING([inode_operations has .get_acl member function])
1119 LB_LINUX_TRY_COMPILE([
1120 #include <linux/fs.h>
1122 struct inode_operations iop;
1125 AC_DEFINE(HAVE_IOP_GET_ACL, 1,
1126 [inode_operations has .get_acl member function])
1127 AC_MSG_RESULT([yes])
1134 # 3.1.1 has ext4_blocks_for_truncate
1136 AC_DEFUN([LC_BLOCKS_FOR_TRUNCATE],
1137 [AC_MSG_CHECKING([if kernel has ext4_blocks_for_truncate])
1138 LB_LINUX_TRY_COMPILE([
1139 #include <linux/fs.h>
1140 #include "$LINUX/fs/ext4/ext4_jbd2.h"
1141 #include "$LINUX/fs/ext4/truncate.h"
1143 ext4_blocks_for_truncate(NULL);
1145 AC_MSG_RESULT([yes])
1146 AC_DEFINE(HAVE_BLOCKS_FOR_TRUNCATE, 1,
1147 [kernel has ext4_blocks_for_truncate])
1154 # 3.1 introduced generic_file_llseek_size()
1156 AC_DEFUN([LC_FILE_LLSEEK_SIZE],
1157 [LB_CHECK_SYMBOL_EXPORT([generic_file_llseek_size],
1159 [AC_DEFINE(HAVE_FILE_LLSEEK_SIZE, 1,
1160 [generic_file_llseek_size is exported by the kernel])])
1164 # 3.2 request_queue.make_request_fn defined as function returns with void
1165 # see kernel commit 5a7bbad27a410350e64a2d7f5ec18fc73836c14f
1167 AC_DEFUN([LC_HAVE_VOID_MAKE_REQUEST_FN],
1168 [AC_MSG_CHECKING([if request_queue.make_request_fn returns void but not int])
1169 LB_LINUX_TRY_COMPILE([
1170 #include <linux/blkdev.h>
1173 make_request_fn *mrf;
1174 ret = mrf(NULL, NULL);
1178 AC_DEFINE(HAVE_VOID_MAKE_REQUEST_FN, 1,
1179 [request_queue.make_request_fn returns void but not int])
1180 AC_MSG_RESULT([yes])
1185 # 3.2 protects inode->i_nlink from direct modification
1186 # see kernel commit a78ef704a8dd430225955f0709b22d4a6ba21deb
1187 # at the same time adds set_nlink(), so checks set_nlink() for it.
1189 AC_DEFUN([LC_HAVE_PROTECT_I_NLINK],
1190 [AC_MSG_CHECKING([if inode->i_nlink is protected from direct modification])
1191 LB_LINUX_TRY_COMPILE([
1192 #include <linux/fs.h>
1197 AC_DEFINE(HAVE_PROTECT_I_NLINK, 1,
1198 [inode->i_nlink is protected from direct modification])
1199 AC_MSG_RESULT([yes])
1206 # 3.3 introduces migrate_mode.h and migratepage has 4 args
1208 AC_DEFUN([LC_HAVE_MIGRATE_HEADER],
1209 [LB_CHECK_FILE([$LINUX/include/linux/migrate.h],[
1210 AC_DEFINE(HAVE_MIGRATE_H, 1,
1211 [kernel has include/linux/migrate.h])
1212 ],[LB_CHECK_FILE([$LINUX/include/linux/migrate_mode.h],[
1213 AC_DEFINE(HAVE_MIGRATE_MODE_H, 1,
1214 [kernel has include/linux/migrate_mode.h])
1221 AC_DEFUN([LC_MIGRATEPAGE_4ARGS],
1222 [AC_MSG_CHECKING([if address_space_operations.migratepage has 4 args])
1223 LB_LINUX_TRY_COMPILE([
1224 #include <linux/fs.h>
1225 #ifdef HAVE_MIGRATE_H
1226 #include <linux/migrate.h>
1227 #elif defined(HAVE_MIGRATE_MODE_H)
1228 #include <linux/migrate_mode.h>
1231 struct address_space_operations aops;
1233 aops.migratepage(NULL, NULL, NULL, MIGRATE_ASYNC);
1235 AC_DEFINE(HAVE_MIGRATEPAGE_4ARGS, 1,
1236 [address_space_operations.migratepage has 4 args])
1237 AC_MSG_RESULT([yes])
1244 # 3.3 switchs super_operations to use dentry as parameter (but not vfsmount)
1245 # see kernel commit 34c80b1d93e6e20ca9dea0baf583a5b5510d92d4
1247 AC_DEFUN([LC_SUPEROPS_USE_DENTRY],
1248 [AC_MSG_CHECKING([if super_operations use dentry as parameter])
1249 tmp_flags="$EXTRA_KCFLAGS"
1250 EXTRA_KCFLAGS="-Werror"
1251 LB_LINUX_TRY_COMPILE([
1252 #include <linux/fs.h>
1253 int show_options(struct seq_file *seq, struct dentry *root){
1257 struct super_operations ops;
1258 ops.show_options = show_options;
1260 AC_DEFINE(HAVE_SUPEROPS_USE_DENTRY, 1,
1261 [super_operations use dentry as parameter])
1262 AC_MSG_RESULT([yes])
1266 EXTRA_KCFLAGS="$tmp_flags"
1270 # 3.3 switchs inode_operations to use umode_t as parameter (but not int)
1271 # see kernel commit 1a67aafb5f72a436ca044293309fa7e6351d6a35
1273 AC_DEFUN([LC_INODEOPS_USE_UMODE_T],
1274 [AC_MSG_CHECKING([if inode_operations use umode_t as parameter])
1275 tmp_flags="$EXTRA_KCFLAGS"
1276 EXTRA_KCFLAGS="-Werror"
1277 LB_LINUX_TRY_COMPILE([
1278 #include <linux/fs.h>
1279 #include <linux/types.h>
1280 int my_mknod(struct inode *dir, struct dentry *dchild,
1281 umode_t mode, dev_t dev)
1286 struct inode_operations ops;
1287 ops.mknod = my_mknod;
1289 AC_DEFINE(HAVE_INODEOPS_USE_UMODE_T, 1,
1290 [inode_operations use umode_t as parameter])
1291 AC_MSG_RESULT([yes])
1295 EXTRA_KCFLAGS="$tmp_flags"
1298 # 3.4 kmap_atomic removes second argument
1299 # see kernel commit 1ec9c5ddc17aa398f05646abfcbaf315b544e62f
1301 AC_DEFUN([LC_KMAP_ATOMIC_HAS_1ARG],
1302 [AC_MSG_CHECKING([if kmap_atomic has only 1 argument])
1303 LB_LINUX_TRY_COMPILE([
1304 #include <linux/highmem.h>
1308 AC_DEFINE(HAVE_KMAP_ATOMIC_HAS_1ARG, 1,
1309 [have kmap_atomic has only 1 argument])
1310 AC_MSG_RESULT([yes])
1317 # 3.4 switchs touch_atime to struct path
1318 # see kernel commit 68ac1234fb949b66941d94dce4157742799fc581
1320 AC_DEFUN([LC_TOUCH_ATIME_1ARG],
1321 [AC_MSG_CHECKING([if touch_atime use one argument])
1322 LB_LINUX_TRY_COMPILE([
1323 #include <linux/fs.h>
1325 touch_atime((struct path *)NULL);
1327 AC_DEFINE(HAVE_TOUCH_ATIME_1ARG, 1,
1328 [touch_atime use one argument])
1329 AC_MSG_RESULT([yes])
1336 # 3.4 converts d_alloc_root to d_make_root
1337 # see kernel commit 32991ab305ace7017c62f8eecbe5eb36dc32e13b
1339 AC_DEFUN([LC_HAVE_D_MAKE_ROOT],
1340 [AC_MSG_CHECKING([if have d_make_root])
1341 LB_LINUX_TRY_COMPILE([
1342 #include <linux/fs.h>
1344 d_make_root((struct inode *)NULL);
1346 AC_DEFINE(HAVE_D_MAKE_ROOT, 1,
1348 AC_MSG_RESULT([yes])
1355 # 3.5 renames end_writeback() back to clear_inode()...
1356 # see kernel commit dbd5768f87ff6fb0a4fe09c4d7b6c4a24de99430
1358 AC_DEFUN([LC_HAVE_CLEAR_INODE],
1359 [AC_MSG_CHECKING([if have clear_inode])
1360 LB_LINUX_TRY_COMPILE([
1361 #include <linux/fs.h>
1363 clear_inode((struct inode *)NULL);
1365 AC_DEFINE(HAVE_CLEAR_INODE, 1,
1367 AC_MSG_RESULT([yes])
1374 # 3.5 encode_fh has parent inode passed in directly
1375 # see kernel commit b0b0382b
1377 AC_DEFUN([LC_HAVE_ENCODE_FH_PARENT],
1378 [AC_MSG_CHECKING([if encode_fh have parent inode as parameter])
1379 tmp_flags="$EXTRA_KCFLAGS"
1380 EXTRA_KCFLAGS="-Werror"
1381 LB_LINUX_TRY_COMPILE([
1382 #include <linux/exportfs.h>
1383 #include <linux/fs.h>
1384 #include <linux/types.h>
1385 int ll_encode_fh(struct inode *i, __u32 *a, int *b, struct inode *p)
1390 struct export_operations exp_op;
1391 exp_op.encode_fh = ll_encode_fh;
1393 AC_DEFINE(HAVE_ENCODE_FH_PARENT, 1,
1394 [have parent inode as parameter])
1395 AC_MSG_RESULT([yes])
1399 EXTRA_KCFLAGS="$tmp_flags"
1402 # 3.5 has generic_file_llseek_size with 5 args
1403 AC_DEFUN([LC_FILE_LLSEEK_SIZE_5ARG],
1404 [AC_MSG_CHECKING([if kernel has generic_file_llseek_size with 5 args])
1405 LB_LINUX_TRY_COMPILE([
1406 #include <linux/fs.h>
1408 generic_file_llseek_size(NULL, 0, 0, 0, 0);
1410 AC_MSG_RESULT([yes])
1411 AC_DEFINE(HAVE_FILE_LLSEEK_SIZE_5ARGS, 1,
1412 [kernel has generic_file_llseek_size with 5 args])
1419 # 3.6 switch i_dentry/d_alias from list to hlist
1421 AC_DEFUN([LC_HAVE_DENTRY_D_ALIAS_HLIST],
1422 [AC_MSG_CHECKING([if i_dentry/d_alias uses hlist])
1423 tmp_flags="$EXTRA_KCFLAGS"
1424 EXTRA_KCFLAGS="-Werror"
1425 LB_LINUX_TRY_COMPILE([
1426 #include <linux/fs.h>
1427 #include <linux/list.h>
1430 struct dentry dentry;
1431 struct hlist_head head;
1432 struct hlist_node node;
1433 inode.i_dentry = head;
1434 dentry.d_alias = node;
1436 AC_DEFINE(HAVE_DENTRY_D_ALIAS_HLIST, 1,
1437 [have i_dentry/d_alias uses hlist])
1438 AC_MSG_RESULT([yes])
1442 EXTRA_KCFLAGS="$tmp_flags"
1446 # 3.6 dentry_open uses struct path as first argument
1447 # see kernel commit 765927b2
1449 AC_DEFUN([LC_DENTRY_OPEN_USE_PATH],
1450 [AC_MSG_CHECKING([if dentry_open uses struct path as first argument])
1451 tmp_flags="$EXTRA_KCFLAGS"
1452 EXTRA_KCFLAGS="-Werror"
1453 LB_LINUX_TRY_COMPILE([
1454 #include <linux/fs.h>
1455 #include <linux/path.h>
1458 dentry_open(&path, 0, NULL);
1460 AC_DEFINE(HAVE_DENTRY_OPEN_USE_PATH, 1,
1461 [dentry_open uses struct path as first argument])
1462 AC_MSG_RESULT([yes])
1466 EXTRA_KCFLAGS="$tmp_flags"
1470 # 3.6 vfs adds iop->atomic_open
1472 AC_DEFUN([LC_HAVE_IOP_ATOMIC_OPEN],
1473 [AC_MSG_CHECKING([if iop has atomic_open])
1474 LB_LINUX_TRY_COMPILE([
1475 #include <linux/fs.h>
1477 struct inode_operations iop;
1478 iop.atomic_open = NULL;
1480 AC_DEFINE(HAVE_IOP_ATOMIC_OPEN, 1,
1481 [have iop atomic_open])
1482 AC_MSG_RESULT([yes])
1489 # 3.7 posix_acl_{to,from}_xattr take struct user_namespace
1491 AC_DEFUN([LC_HAVE_POSIXACL_USER_NS],
1492 [AC_MSG_CHECKING([if posix_acl_to_xattr takes struct user_namespace])
1493 LB_LINUX_TRY_COMPILE([
1494 #include <linux/fs.h>
1495 #include <linux/posix_acl_xattr.h>
1497 posix_acl_to_xattr((struct user_namespace *)NULL, NULL, NULL, 0);
1499 AC_DEFINE(HAVE_POSIXACL_USER_NS, 1,
1500 [posix_acl_to_xattr takes struct user_namespace])
1501 AC_MSG_RESULT([yes])
1508 # 3.9 uses hlist_for_each_entry with 3 args
1509 # b67bfe0d42cac56c512dd5da4b1b347a23f4b70a
1511 AC_DEFUN([LC_HAVE_HLIST_FOR_EACH_3ARG],
1512 [AC_MSG_CHECKING([if hlist_for_each_entry has 3 args])
1513 LB_LINUX_TRY_COMPILE([
1514 #include <linux/list.h>
1515 #include <linux/fs.h>
1517 struct inode *inode;
1518 struct dentry *dentry;
1519 hlist_for_each_entry(dentry, &inode->i_dentry, d_alias) {
1523 AC_DEFINE(HAVE_HLIST_FOR_EACH_3ARG, 1, [3 args])
1524 AC_MSG_RESULT([yes])
1531 # 3.9 killed f_vfsmnt by
1532 # 182be684784334598eee1d90274e7f7aa0063616
1533 # replacement is f_path.mnt
1535 AC_DEFUN([LC_HAVE_F_PATH_MNT],
1536 [AC_MSG_CHECKING([if struct file has f_path.mnt])
1537 LB_LINUX_TRY_COMPILE([
1538 #include <linux/fs.h>
1540 struct file *fp = NULL;
1543 path.mnt = fp->f_path.mnt;
1545 AC_DEFINE(HAVE_F_PATH_MNT,1,[yes])
1546 AC_MSG_RESULT([yes])
1555 # Lustre linux kernel checks
1557 AC_DEFUN([LC_PROG_LINUX],
1561 LC_CONFIG_LIBLUSTRE_RECOVERY
1562 LC_CONFIG_HEALTH_CHECK_WRITE
1563 LC_CONFIG_LRU_RESIZE
1564 LC_LLITE_LLOOP_MODULE
1567 LC_EXPORT_TRUNCATE_COMPLETE
1578 #2.6.18 + RHEL5 (fc6)
1581 # raid5-zerocopy patch
1585 LC_FS_RENAME_DOES_D_MOVE
1588 LC_UNREGISTER_BLKDEV_RETURN_INT
1596 LC_FS_STRUCT_USE_PATH
1599 LC_SECURITY_PLUG # for SLES10 SP2
1600 LC_INODE_PERMISION_2ARGS
1605 # 2.6.27.15-2 sles11
1610 LC_BLK_QUEUE_MAX_SEGMENTS
1613 LC_HAVE_DQUOT_FS_DISK_QUOTA
1614 LC_HAVE_DQUOT_SUSPEND
1618 LC_EXPORT_SIMPLE_SETATTR
1622 LC_SBOPS_EVICT_INODE
1628 LC_BLKDEV_GET_BY_DEV
1629 LC_GENERIC_PERMISSION
1630 LC_QUOTA_ON_USE_PATH
1637 LC_REQUEST_QUEUE_UNPLUG_FN
1638 LC_HAVE_FSTYPE_MOUNT
1641 LC_DIRTY_INODE_WITH_FLAG
1644 LC_LM_XXX_LOCK_MANAGER_OPS
1650 LC_BLOCKS_FOR_TRUNCATE
1653 LC_HAVE_VOID_MAKE_REQUEST_FN
1654 LC_HAVE_PROTECT_I_NLINK
1657 LC_HAVE_MIGRATE_HEADER
1658 LC_MIGRATEPAGE_4ARGS
1659 LC_SUPEROPS_USE_DENTRY
1660 LC_INODEOPS_USE_UMODE_T
1665 LC_KMAP_ATOMIC_HAS_1ARG
1669 LC_HAVE_ENCODE_FH_PARENT
1670 LC_FILE_LLSEEK_SIZE_5ARG
1673 LC_HAVE_DENTRY_D_ALIAS_HLIST
1674 LC_DENTRY_OPEN_USE_PATH
1675 LC_HAVE_IOP_ATOMIC_OPEN
1678 LC_HAVE_POSIXACL_USER_NS
1681 LC_HAVE_HLIST_FOR_EACH_3ARG
1685 if test x$enable_server = xyes ; then
1686 AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
1687 LC_FUNC_DEV_SET_RDONLY
1695 # LC_CONFIG_CLIENT_SERVER
1697 # Build client/server sides of Lustre
1699 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
1700 [AC_MSG_CHECKING([whether to build Lustre server support])
1701 AC_ARG_ENABLE([server],
1702 AC_HELP_STRING([--disable-server],
1703 [disable Lustre server support]),
1704 [],[enable_server='yes'])
1705 AC_MSG_RESULT([$enable_server])
1707 AC_MSG_CHECKING([whether to build Lustre client support])
1708 AC_ARG_ENABLE([client],
1709 AC_HELP_STRING([--disable-client],
1710 [disable Lustre client support]),
1711 [],[enable_client='yes'])
1712 AC_MSG_RESULT([$enable_client])])
1715 # LC_CONFIG_LIBLUSTRE
1717 # whether to build liblustre
1719 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
1720 [AC_MSG_CHECKING([whether to build Lustre library])
1721 AC_ARG_ENABLE([liblustre],
1722 AC_HELP_STRING([--disable-liblustre],
1723 [disable building of Lustre library]),
1724 [],[enable_liblustre=$with_sysio])
1725 AC_MSG_RESULT([$enable_liblustre])
1726 # only build sysio if liblustre is built
1727 with_sysio="$enable_liblustre"
1729 AC_MSG_CHECKING([whether to build liblustre tests])
1730 AC_ARG_ENABLE([liblustre-tests],
1731 AC_HELP_STRING([--enable-liblustre-tests],
1732 [enable liblustre tests, if --disable-tests is used]),
1733 [],[enable_liblustre_tests=$enable_tests])
1734 if test x$enable_liblustre != xyes ; then
1735 enable_liblustre_tests='no'
1737 AC_MSG_RESULT([$enable_liblustre_tests])
1739 AC_MSG_CHECKING([whether to enable liblustre acl])
1740 AC_ARG_ENABLE([liblustre-acl],
1741 AC_HELP_STRING([--disable-liblustre-acl],
1742 [disable ACL support for liblustre]),
1743 [],[enable_liblustre_acl=yes])
1744 AC_MSG_RESULT([$enable_liblustre_acl])
1745 if test x$enable_liblustre_acl = xyes ; then
1746 AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
1752 AC_ARG_ENABLE(mpitests,
1753 AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
1754 [include mpi tests]),
1765 MPICC_WRAPPER=$enableval
1775 if test x$enable_mpitests != xno; then
1776 AC_MSG_CHECKING([whether mpitests can be built])
1784 MPI_Initialized(&flag);
1787 AC_MSG_RESULT([yes])
1794 AC_SUBST(MPICC_WRAPPER)
1796 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
1797 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
1800 LC_CONFIG_LIBLUSTRE_RECOVERY
1806 # whether to enable quota support global control
1808 AC_DEFUN([LC_CONFIG_QUOTA],
1809 [AC_ARG_ENABLE([quota],
1810 AC_HELP_STRING([--enable-quota],
1811 [enable quota support]),
1812 [],[enable_quota='yes'])
1815 AC_DEFUN([LC_QUOTA],
1819 AC_CHECK_HEADER(sys/quota.h,
1820 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
1821 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
1827 # whether to enable split support
1829 AC_DEFUN([LC_CONFIG_SPLIT],
1830 [AC_MSG_CHECKING([whether to enable split support])
1831 AC_ARG_ENABLE([split],
1832 AC_HELP_STRING([--enable-split],
1833 [enable split support]),
1834 [],[enable_split='no'])
1835 AC_MSG_RESULT([$enable_split])
1836 if test x$enable_split != xno; then
1837 AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
1842 # LC_LLITE_LLOOP_MODULE
1843 # lloop_llite.ko does not currently work with page sizes
1846 AC_DEFUN([LC_LLITE_LLOOP_MODULE],
1847 [AC_MSG_CHECKING([whether to enable llite_lloop module])
1848 LB_LINUX_TRY_COMPILE([
1849 #include <asm/page.h>
1851 #if PAGE_SIZE >= 65536
1852 #error "PAGE_SIZE >= 65536"
1855 enable_llite_lloop_module='yes'
1856 AC_MSG_RESULT([yes])
1858 enable_llite_lloop_module='no'
1866 # configure support for optional OSD implementation
1868 AC_DEFUN([LC_OSD_ADDON],
1869 [AC_MSG_CHECKING([for osd])
1871 AC_HELP_STRING([--with-osd=path],
1872 [set path to optional osd]),
1875 no) ENABLEOSDADDON=0
1877 *) OSDADDON="${with_osd}"
1884 if test $ENABLEOSDADDON -eq 0; then
1888 OSDMODNAME=`basename $OSDADDON`
1889 if test -e $LUSTRE/$OSDMODNAME; then
1890 AC_MSG_RESULT([can't link])
1892 elif ln -s $OSDADDON $LUSTRE/$OSDMODNAME; then
1893 AC_MSG_RESULT([$OSDMODNAME])
1894 OSDADDON="subdir-m += $OSDMODNAME"
1896 AC_MSG_RESULT([can't link])
1906 # other configure checks
1908 AC_DEFUN([LC_CONFIGURE],
1909 [LC_CONFIG_OBD_BUFFER_SIZE
1911 if test $target_cpu == "i686" -o $target_cpu == "x86_64"; then
1912 CFLAGS="$CFLAGS -Werror"
1915 # maximum MDS thread count
1918 # include/liblustre.h
1919 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
1921 # liblustre/llite_lib.h
1922 AC_CHECK_HEADERS([xtio.h file.h])
1925 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
1928 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
1929 AC_CHECK_FUNCS([inet_ntoa])
1931 # libsysio/src/readlink.c
1934 # lvfs/prng.c - depends on linux/types.h from liblustre/dir.c
1935 AC_CHECK_HEADERS([linux/random.h], [], [],
1936 [#ifdef HAVE_LINUX_TYPES_H
1937 # include <linux/types.h>
1942 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
1944 # check for -lz support
1948 [AC_CHECK_HEADERS([zlib.h],
1950 AC_DEFINE([HAVE_ADLER], 1,
1951 [support alder32 checksum type])],
1952 [AC_MSG_WARN([No zlib-devel package found,
1953 unable to use adler32 checksum])])],
1954 [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
1959 AC_CHECK_LIB([selinux],
1960 [is_selinux_enabled],
1961 [AC_CHECK_HEADERS([selinux.h],
1962 [SELINUX="-lselinux"
1963 AC_DEFINE([HAVE_SELINUX], 1,
1964 [support for selinux ])],
1965 [AC_MSG_WARN([No selinux-devel package found,
1966 unable to build selinux enabled
1968 [AC_MSG_WARN([No selinux package found, unable to build selinux
1974 AC_ARG_ENABLE([mindf],
1975 AC_HELP_STRING([--enable-mindf],
1976 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
1978 if test "$enable_mindf" = "yes" ; then
1979 AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
1982 AC_ARG_ENABLE([fail_alloc],
1983 AC_HELP_STRING([--disable-fail-alloc],
1984 [disable randomly alloc failure]),
1985 [],[enable_fail_alloc=yes])
1986 AC_MSG_CHECKING([whether to randomly failing memory alloc])
1987 AC_MSG_RESULT([$enable_fail_alloc])
1988 if test x$enable_fail_alloc != xno ; then
1989 AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
1992 AC_ARG_ENABLE([invariants],
1993 AC_HELP_STRING([--enable-invariants],
1994 [enable invariant checking (cpu intensive)]),
1996 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
1997 AC_MSG_RESULT([$enable_invariants])
1998 if test x$enable_invariants = xyes ; then
1999 AC_DEFINE([CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK], 1, [enable invariant checking])
2002 AC_ARG_ENABLE([lu_ref],
2003 AC_HELP_STRING([--enable-lu_ref],
2004 [enable lu_ref reference tracking code]),
2006 AC_MSG_CHECKING([whether to track references with lu_ref])
2007 AC_MSG_RESULT([$enable_lu_ref])
2008 if test x$enable_lu_ref = xyes ; then
2009 AC_DEFINE([USE_LU_REF], 1, [enable lu_ref reference tracking code])
2012 AC_ARG_ENABLE([pgstate-track],
2013 AC_HELP_STRING([--enable-pgstate-track],
2014 [enable page state tracking]),
2015 [enable_pgstat_track='yes'],[])
2016 AC_MSG_CHECKING([whether to enable page state tracking])
2017 AC_MSG_RESULT([$enable_pgstat_track])
2018 if test x$enable_pgstat_track = xyes ; then
2019 AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
2020 [enable page state tracking code])
2027 # AM_CONDITIONALS for lustre
2029 AC_DEFUN([LC_CONDITIONALS],
2030 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
2031 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
2032 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
2033 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
2034 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
2035 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
2036 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
2037 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
2038 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
2039 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
2040 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
2041 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
2042 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
2043 AM_CONDITIONAL(LLITE_LLOOP, test x$enable_llite_lloop_module = xyes)
2049 # files that should be generated with AC_OUTPUT
2051 AC_DEFUN([LC_CONFIG_FILES],
2055 lustre/autoconf/Makefile
2056 lustre/conf/Makefile
2057 lustre/contrib/Makefile
2059 lustre/include/Makefile
2060 lustre/include/lustre_ver.h
2061 lustre/include/linux/Makefile
2062 lustre/include/darwin/Makefile
2063 lustre/include/lustre/Makefile
2064 lustre/kernel_patches/targets/2.6-rhel6.target
2065 lustre/kernel_patches/targets/2.6-rhel5.target
2066 lustre/kernel_patches/targets/2.6-sles11.target
2067 lustre/kernel_patches/targets/3.0-sles11.target
2068 lustre/kernel_patches/targets/2.6-fc11.target
2069 lustre/kernel_patches/targets/2.6-fc12.target
2070 lustre/kernel_patches/targets/2.6-fc15.target
2071 lustre/kernel_patches/targets/3.x-fc18.target
2072 lustre/ldlm/Makefile
2074 lustre/fid/autoMakefile
2075 lustre/liblustre/Makefile
2076 lustre/liblustre/tests/Makefile
2077 lustre/liblustre/tests/mpi/Makefile
2078 lustre/llite/Makefile
2079 lustre/llite/autoMakefile
2080 lustre/lclient/Makefile
2082 lustre/lov/autoMakefile
2083 lustre/lvfs/Makefile
2084 lustre/lvfs/autoMakefile
2086 lustre/mdc/autoMakefile
2088 lustre/lmv/autoMakefile
2089 lustre/lfsck/Makefile
2090 lustre/lfsck/autoMakefile
2092 lustre/mdt/autoMakefile
2094 lustre/mdd/autoMakefile
2096 lustre/fld/autoMakefile
2097 lustre/obdclass/Makefile
2098 lustre/obdclass/autoMakefile
2099 lustre/obdclass/linux/Makefile
2100 lustre/obdecho/Makefile
2101 lustre/obdecho/autoMakefile
2103 lustre/ofd/autoMakefile
2105 lustre/osc/autoMakefile
2107 lustre/ost/autoMakefile
2108 lustre/osd-ldiskfs/Makefile
2109 lustre/osd-ldiskfs/autoMakefile
2110 lustre/osd-zfs/Makefile
2111 lustre/osd-zfs/autoMakefile
2113 lustre/mgc/autoMakefile
2115 lustre/mgs/autoMakefile
2116 lustre/target/Makefile
2117 lustre/ptlrpc/Makefile
2118 lustre/ptlrpc/autoMakefile
2119 lustre/ptlrpc/gss/Makefile
2120 lustre/ptlrpc/gss/autoMakefile
2121 lustre/quota/Makefile
2122 lustre/quota/autoMakefile
2123 lustre/scripts/Makefile
2124 lustre/tests/Makefile
2125 lustre/tests/mpi/Makefile
2126 lustre/utils/Makefile
2127 lustre/utils/gss/Makefile
2129 lustre/osp/autoMakefile
2131 lustre/lod/autoMakefile
2132 lustre/obdclass/darwin/Makefile