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])
402 # 2.6.19 replaced writev with aio_write
403 AC_DEFUN([LC_FILE_WRITEV],
404 [AC_MSG_CHECKING([writev in fops])
405 LB_LINUX_TRY_COMPILE([
406 #include <linux/fs.h>
408 struct file_operations *fops = NULL;
412 AC_DEFINE(HAVE_FILE_WRITEV, 1,
420 # 2.6.19 replaced readv with aio_read
421 AC_DEFUN([LC_FILE_READV],
422 [AC_MSG_CHECKING([readv in fops])
423 LB_LINUX_TRY_COMPILE([
424 #include <linux/fs.h>
426 struct file_operations *fops = NULL;
430 AC_DEFINE(HAVE_FILE_READV, 1,
437 # raid5-zerocopy patch
442 # In order to support raid5 zerocopy patch, we have to patch the kernel to make
443 # it support constant page, which means the page won't be modified during the
446 AC_DEFUN([LC_PAGE_CONSTANT],
447 [AC_MSG_CHECKING([if kernel have PageConstant defined])
448 LB_LINUX_TRY_COMPILE([
449 #include <linux/mm.h>
450 #include <linux/page-flags.h>
453 #error "Have no raid5 zcopy patch"
457 AC_DEFINE(HAVE_PAGE_CONSTANT, 1, [kernel have PageConstant supported])
465 # 2.6.22 lost second parameter for invalidate_bdev
466 AC_DEFUN([LC_INVALIDATE_BDEV_2ARG],
467 [AC_MSG_CHECKING([if invalidate_bdev has second argument])
468 LB_LINUX_TRY_COMPILE([
469 #include <linux/buffer_head.h>
471 invalidate_bdev(NULL,0);
474 AC_DEFINE(HAVE_INVALIDATE_BDEV_2ARG, 1,
475 [invalidate_bdev has second argument])
482 # 2.6.19 check for FS_RENAME_DOES_D_MOVE flag
484 AC_DEFUN([LC_FS_RENAME_DOES_D_MOVE],
485 [AC_MSG_CHECKING([if kernel has FS_RENAME_DOES_D_MOVE flag])
486 LB_LINUX_TRY_COMPILE([
487 #include <linux/fs.h>
489 int v __attribute__ ((unused));
490 v = FS_RENAME_DOES_D_MOVE;
493 AC_DEFINE(HAVE_FS_RENAME_DOES_D_MOVE, 1, [kernel has FS_RENAME_DOES_D_MOVE flag])
501 # 2.6.23 have return type 'void' for unregister_blkdev
502 AC_DEFUN([LC_UNREGISTER_BLKDEV_RETURN_INT],
503 [AC_MSG_CHECKING([if unregister_blkdev return int])
504 LB_LINUX_TRY_COMPILE([
505 #include <linux/fs.h>
507 int i __attribute__ ((unused));
508 i = unregister_blkdev(0,NULL);
511 AC_DEFINE(HAVE_UNREGISTER_BLKDEV_RETURN_INT, 1,
512 [unregister_blkdev return int])
518 # 2.6.23 add code to wait other users to complete before removing procfs entry
519 AC_DEFUN([LC_PROCFS_USERS],
520 [AC_MSG_CHECKING([if kernel has pde_users member in procfs entry struct])
521 LB_LINUX_TRY_COMPILE([
522 #include <linux/proc_fs.h>
524 struct proc_dir_entry pde;
529 AC_DEFINE(HAVE_PROCFS_USERS, 1,
530 [kernel has pde_users member in procfs entry struct])
532 LB_LINUX_TRY_COMPILE([
533 #include "$LINUX/fs/proc/internal.h"
535 struct proc_dir_entry_aux pde_aux;
537 pde_aux.pde_users = 0;
540 AC_DEFINE(HAVE_PROCFS_USERS, 1,
541 [kernel has pde_users member in proc_dir_entry_aux])
550 # 2.6.24 has bio_endio with 2 args
551 AC_DEFUN([LC_BIO_ENDIO_2ARG],
552 [AC_MSG_CHECKING([if kernel has bio_endio with 2 args])
553 LB_LINUX_TRY_COMPILE([
554 #include <linux/bio.h>
559 AC_DEFINE(HAVE_BIO_ENDIO_2ARG, 1,
560 [kernel has bio_endio with 2 args])
566 # 2.6.24 removes long aged procfs entry -> deleted member
567 AC_DEFUN([LC_PROCFS_DELETED],
568 [AC_MSG_CHECKING([if kernel has deleted member in procfs entry struct])
569 LB_LINUX_TRY_COMPILE([
570 #include <linux/proc_fs.h>
572 struct proc_dir_entry pde;
574 pde.deleted = sizeof(pde);
577 AC_DEFINE(HAVE_PROCFS_DELETED, 1,
578 [kernel has deleted member in procfs entry struct])
586 # 2.6.26 isn't export set_fs_pwd and change paramter in fs struct
587 AC_DEFUN([LC_FS_STRUCT_USE_PATH],
588 [AC_MSG_CHECKING([fs_struct use path structure])
589 LB_LINUX_TRY_COMPILE([
590 #include <asm/atomic.h>
591 #include <linux/spinlock.h>
592 #include <linux/fs_struct.h>
596 fs.pwd = *((struct path *)sizeof(fs));
599 AC_DEFINE(HAVE_FS_STRUCT_USE_PATH, 1,
600 [fs_struct use path structure])
610 # LC_SECURITY_PLUG # for SLES10 SP2 (2.6.27)
611 # check security plug in sles10 sp2 kernel
612 AC_DEFUN([LC_SECURITY_PLUG],
613 [AC_MSG_CHECKING([If kernel has security plug support])
614 LB_LINUX_TRY_COMPILE([
615 #include <linux/fs.h>
616 #include <linux/stddef.h>
618 notify_change(NULL, NULL, NULL);
621 AC_DEFINE(HAVE_SECURITY_PLUG, 1,
622 [SLES10 SP2 use extra parameter in vfs])
628 AC_DEFUN([LC_INODE_PERMISION_2ARGS],
629 [AC_MSG_CHECKING([inode_operations->permission has two args])
630 LB_LINUX_TRY_COMPILE([
631 #include <linux/fs.h>
633 struct inode *inode __attribute__ ((unused));
636 inode->i_op->permission(NULL, 0);
638 AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
639 [inode_operations->permission has two args])
646 # 2.6.27 use 5th parameter in quota_on for remount.
647 AC_DEFUN([LC_QUOTA_ON_5ARGS],
648 [AC_MSG_CHECKING([quota_on needs 5 parameters])
649 LB_LINUX_TRY_COMPILE([
650 #include <linux/fs.h>
651 #include <linux/quota.h>
653 struct quotactl_ops *qop = NULL;
654 qop->quota_on(NULL, 0, 0, NULL, 0);
656 AC_DEFINE(HAVE_QUOTA_ON_5ARGS, 1,
657 [quota_on needs 5 paramters])
664 # 2.6.27 use 3th parameter in quota_off for remount.
665 AC_DEFUN([LC_QUOTA_OFF_3ARGS],
666 [AC_MSG_CHECKING([quota_off needs 3 parameters])
667 LB_LINUX_TRY_COMPILE([
668 #include <linux/fs.h>
669 #include <linux/quota.h>
671 struct quotactl_ops *qop = NULL;
672 qop->quota_off(NULL, 0, 0);
674 AC_DEFINE(HAVE_QUOTA_OFF_3ARGS, 1,
675 [quota_off needs 3 paramters])
682 # 2.6.34 has quotactl_ops->[sg]et_dqblk that take struct fs_disk_quota
683 AC_DEFUN([LC_HAVE_DQUOT_FS_DISK_QUOTA],
684 tmp_flags="$EXTRA_KCFLAGS"
685 EXTRA_KCFLAGS="-Werror"
686 [AC_MSG_CHECKING([if quotactl_ops.set_dqblk takes struct fs_disk_quota])
687 LB_LINUX_TRY_COMPILE([
688 #include <linux/fs.h>
689 #include <linux/quota.h>
691 struct quotactl_ops qops = {};
692 struct fs_disk_quota fdq;
693 qops.set_dqblk(NULL, 0, 0, &fdq);
695 AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1, [quotactl_ops.set_dqblk takes struct fs_disk_quota])
700 EXTRA_KCFLAGS="$tmp_flags"
703 # 2.6.34 has renamed dquot options to dquot_*, check for dquot_suspend
704 AC_DEFUN([LC_HAVE_DQUOT_SUSPEND],
705 [AC_MSG_CHECKING([if dquot_suspend is defined])
706 LB_LINUX_TRY_COMPILE([
707 #include <linux/quotaops.h>
709 dquot_suspend(NULL, -1);
711 AC_DEFINE(HAVE_DQUOT_SUSPEND, 1, [dquot_suspend is defined])
718 # LC_LOCK_MAP_ACQUIRE
719 # after 2.6.27 lock_map_acquire replaces lock_acquire
720 AC_DEFUN([LC_LOCK_MAP_ACQUIRE],
721 [AC_MSG_CHECKING([if lock_map_acquire is defined])
722 LB_LINUX_TRY_COMPILE([
723 #include <linux/lockdep.h>
725 lock_map_acquire(NULL);
728 AC_DEFINE(HAVE_LOCK_MAP_ACQUIRE, 1,
729 [lock_map_acquire is defined])
737 # 2.6.27 sles11 remove the bi_hw_segments
738 AC_DEFUN([LC_BI_HW_SEGMENTS],
739 [AC_MSG_CHECKING([struct bio has a bi_hw_segments field])
740 LB_LINUX_TRY_COMPILE([
741 #include <linux/bio.h>
744 io.bi_hw_segments = sizeof(io);
746 AC_DEFINE(HAVE_BI_HW_SEGMENTS, 1,
747 [struct bio has a bi_hw_segments field])
755 # 2.6.27 sles11 move the quotaio_v1{2}.h from include/linux to fs
756 # 2.6.32 move the quotaio_v1{2}.h from fs to fs/quota
757 AC_DEFUN([LC_HAVE_QUOTAIO_H],
758 [LB_CHECK_FILE([$LINUX/include/linux/quotaio_v2.h],[
759 AC_DEFINE(HAVE_QUOTAIO_H, 1,
760 [kernel has include/linux/quotaio_v2.h])
761 ],[LB_CHECK_FILE([$LINUX/fs/quotaio_v2.h],[
762 AC_DEFINE(HAVE_FS_QUOTAIO_H, 1,
763 [kernel has fs/quotaio_v1.h])
764 ],[LB_CHECK_FILE([$LINUX/fs/quota/quotaio_v2.h],[
765 AC_DEFINE(HAVE_FS_QUOTA_QUOTAIO_H, 1,
766 [kernel has fs/quota/quotaio_v2.h])
776 # 2.6.32 replaces 2 functions blk_queue_max_phys_segments and blk_queue_max_hw_segments by blk_queue_max_segments
777 AC_DEFUN([LC_BLK_QUEUE_MAX_SEGMENTS],
778 [AC_MSG_CHECKING([if blk_queue_max_segments is defined])
779 LB_LINUX_TRY_COMPILE([
780 #include <linux/blkdev.h>
782 blk_queue_max_segments(NULL, 0);
785 AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
786 [blk_queue_max_segments is defined])
795 # Check if kernel has been patched for 64-bit quota limits support.
796 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
797 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
798 # that in the absence of quotaio_v1.h in the kernel headers.
800 AC_DEFUN([LC_QUOTA64],[
801 AC_MSG_CHECKING([if kernel has 64-bit quota limits support])
802 tmp_flags="$EXTRA_KCFLAGS"
803 EXTRA_KCFLAGS="-I$LINUX/fs"
804 LB_LINUX_TRY_COMPILE([
805 #include <linux/kernel.h>
806 #include <linux/fs.h>
807 #if defined(HAVE_FS_QUOTA_QUOTAIO_H)
808 # include <quota/quotaio_v2.h>
809 struct v2r1_disk_dqblk dqblk_r1;
811 #include <linux/quota.h>
812 int ver = QFMT_VFS_V1;
815 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
818 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
819 AC_MSG_ERROR([You have got no 64-bit kernel quota support.])
823 EXTRA_KCFLAGS=$tmp_flags
826 # 2.6.32 set_cpus_allowed is no more defined if CONFIG_CPUMASK_OFFSTACK=yes
827 AC_DEFUN([LC_SET_CPUS_ALLOWED],
828 [AC_MSG_CHECKING([if kernel defines set_cpus_allowed])
829 LB_LINUX_TRY_COMPILE(
830 [#include <linux/sched.h>],
831 [struct task_struct *p = NULL;
832 cpumask_t mask = { { 0 } };
833 (void) set_cpus_allowed(p, mask);],
834 [AC_MSG_RESULT([yes])
835 AC_DEFINE(HAVE_SET_CPUS_ALLOWED, 1,
836 [set_cpus_allowed is exported by the kernel])],
837 [AC_MSG_RESULT([no])] )])
840 # 2.6.36 fs_struct.lock use spinlock instead of rwlock.
842 AC_DEFUN([LC_FS_STRUCT_RWLOCK],
843 [AC_MSG_CHECKING([if fs_struct.lock use rwlock])
844 LB_LINUX_TRY_COMPILE([
845 #include <asm/atomic.h>
846 #include <linux/spinlock.h>
847 #include <linux/fs_struct.h>
849 ((struct fs_struct *)0)->lock = (rwlock_t){ 0 };
851 AC_DEFINE(HAVE_FS_STRUCT_RWLOCK, 1,
852 [fs_struct.lock use rwlock])
860 # 2.6.36 super_operations add evict_inode method. it hybird of
861 # delete_inode & clear_inode.
863 AC_DEFUN([LC_SBOPS_EVICT_INODE],
864 [AC_MSG_CHECKING([if super_operations.evict_inode exist])
865 LB_LINUX_TRY_COMPILE([
866 #include <linux/fs.h>
868 ((struct super_operations *)0)->evict_inode(NULL);
870 AC_DEFINE(HAVE_SBOPS_EVICT_INODE, 1,
871 [super_operations.evict_inode() is exist in kernel])
879 # 2.6.35 file_operations.fsync taken 2 arguments.
880 # 3.0.0 file_operations.fsync takes 4 arguments.
882 AC_DEFUN([LC_FILE_FSYNC],
883 [AC_MSG_CHECKING([if file_operations.fsync takes 4 or 2 arguments])
884 LB_LINUX_TRY_COMPILE([
885 #include <linux/fs.h>
887 ((struct file_operations *)0)->fsync(NULL, 0, 0, 0);
889 AC_DEFINE(HAVE_FILE_FSYNC_4ARGS, 1,
890 [file_operations.fsync takes 4 arguments])
891 AC_MSG_RESULT([yes, 4 args])
893 LB_LINUX_TRY_COMPILE([
894 #include <linux/fs.h>
896 ((struct file_operations *)0)->fsync(NULL, 0);
898 AC_DEFINE(HAVE_FILE_FSYNC_2ARGS, 1,
899 [file_operations.fsync takes 2 arguments])
900 AC_MSG_RESULT([yes, 2 args])
908 # 2.6.37 remove kernel_locked
910 AC_DEFUN([LC_KERNEL_LOCKED],
911 [AC_MSG_CHECKING([if kernel_locked is defined])
912 LB_LINUX_TRY_COMPILE([
913 #include <linux/smp_lock.h>
918 AC_DEFINE(HAVE_KERNEL_LOCKED, 1,
919 [kernel_locked is defined])
926 # 2.6.38 dentry_operations.d_compare() taken 7 arguments.
928 AC_DEFUN([LC_D_COMPARE_7ARGS],
929 [AC_MSG_CHECKING([if d_compare taken 7 arguments])
930 LB_LINUX_TRY_COMPILE([
931 #include <linux/dcache.h>
933 ((struct dentry_operations*)0)->d_compare(NULL,NULL,NULL,NULL,0,NULL,NULL);
935 AC_DEFINE(HAVE_D_COMPARE_7ARGS, 1,
936 [d_compare need 7 arguments])
944 # 2.6.38 dentry_operations.d_delete() defined 'const' for 1st parameter.
946 AC_DEFUN([LC_D_DELETE_CONST],
947 [AC_MSG_CHECKING([if d_delete has const declare on first parameter])
948 tmp_flags="$EXTRA_KCFLAGS"
949 EXTRA_KCFLAGS="-Werror"
950 LB_LINUX_TRY_COMPILE([
951 #include <linux/dcache.h>
953 const struct dentry *d = NULL;
954 ((struct dentry_operations*)0)->d_delete(d);
956 AC_DEFINE(HAVE_D_DELETE_CONST, const,
957 [d_delete first parameter declared const])
960 AC_DEFINE(HAVE_D_DELETE_CONST, , [])
963 EXTRA_KCFLAGS="$tmp_flags"
967 # 2.6.38 dcache_lock removed. rcu-walk commited.
969 AC_DEFUN([LC_DCACHE_LOCK],
970 [AC_MSG_CHECKING([if dcache_lock is exist])
971 LB_LINUX_TRY_COMPILE([
972 #include <linux/dcache.h>
974 spin_lock(&dcache_lock);
976 AC_DEFINE(HAVE_DCACHE_LOCK, 1,
977 [dcache_lock is exist])
985 # 2.6.38 inode.i_rcu added.
987 AC_DEFUN([LC_INODE_I_RCU],
988 [AC_MSG_CHECKING([if inode.i_rcu exists])
989 LB_LINUX_TRY_COMPILE([
990 #include <linux/fs.h>
993 struct rcu_head rcu = {};
996 AC_DEFINE(HAVE_INODE_I_RCU, 1,
997 [inode.i_rcu exists])
1005 # 2.6.38 export blkdev_get_by_dev
1007 AC_DEFUN([LC_BLKDEV_GET_BY_DEV],
1008 [LB_CHECK_SYMBOL_EXPORT([blkdev_get_by_dev],
1010 AC_DEFINE(HAVE_BLKDEV_GET_BY_DEV, 1,
1011 [blkdev_get_by_dev is exported by the kernel])
1017 # 2.6.38 use path as 4th parameter in quota_on.
1019 AC_DEFUN([LC_QUOTA_ON_USE_PATH],
1020 [AC_MSG_CHECKING([quota_on use path as parameter])
1021 tmp_flags="$EXTRA_KCFLAGS"
1022 EXTRA_KCFLAGS="-Werror"
1023 LB_LINUX_TRY_COMPILE([
1024 #include <linux/fs.h>
1025 #include <linux/quota.h>
1027 ((struct quotactl_ops *)0)->quota_on(NULL, 0, 0, ((struct path*)0));
1029 AC_DEFINE(HAVE_QUOTA_ON_USE_PATH, 1,
1030 [quota_on use path as 4th paramter])
1031 AC_MSG_RESULT([yes])
1035 EXTRA_KCFLAGS="$tmp_flags"
1039 # 2.6.38 export simple_setattr
1041 AC_DEFUN([LC_EXPORT_SIMPLE_SETATTR],
1042 [LB_CHECK_SYMBOL_EXPORT([simple_setattr],
1044 AC_DEFINE(HAVE_SIMPLE_SETATTR, 1,
1045 [simple_setattr is exported by the kernel])
1051 # 2.6.39 remove unplug_fn from request_queue.
1053 AC_DEFUN([LC_REQUEST_QUEUE_UNPLUG_FN],
1054 [AC_MSG_CHECKING([if request_queue has unplug_fn field])
1055 LB_LINUX_TRY_COMPILE([
1056 #include <linux/blkdev.h>
1058 do{ }while(sizeof(((struct request_queue *)0)->unplug_fn));
1060 AC_DEFINE(HAVE_REQUEST_QUEUE_UNPLUG_FN, 1,
1061 [request_queue has unplug_fn field])
1062 AC_MSG_RESULT([yes])
1069 # 2.6.39 replace get_sb with mount in struct file_system_type
1071 AC_DEFUN([LC_HAVE_FSTYPE_MOUNT],
1072 [AC_MSG_CHECKING([if file_system_type has mount field])
1073 LB_LINUX_TRY_COMPILE([
1074 #include <linux/fs.h>
1076 struct file_system_type fst;
1077 void *i = (void *) fst.mount;
1079 AC_DEFINE(HAVE_FSTYPE_MOUNT, 1,
1080 [struct file_system_type has mount field])
1081 AC_MSG_RESULT([yes])
1088 # 3.0 dirty_inode() has a flag parameter
1089 # see kernel commit aa38572954ade525817fe88c54faebf85e5a61c0
1091 AC_DEFUN([LC_DIRTY_INODE_WITH_FLAG],
1092 [AC_MSG_CHECKING([if dirty_inode super_operation takes flag])
1093 LB_LINUX_TRY_COMPILE([
1094 #include <linux/fs.h>
1096 struct inode *inode;
1097 inode->i_sb->s_op->dirty_inode(NULL, 0);
1099 AC_DEFINE(HAVE_DIRTY_INODE_HAS_FLAG, 1,
1100 [dirty_inode super_operation takes flag])
1101 AC_MSG_RESULT([yes])
1108 # 2.6.38 generic_permission taken 4 parameters.
1109 # in fact, it means rcu-walk aware permission bring.
1111 # 3.1 generic_permission taken 2 parameters.
1112 # see kernel commit 2830ba7f34ebb27c4e5b8b6ef408cd6d74860890
1114 AC_DEFUN([LC_GENERIC_PERMISSION],
1115 [AC_MSG_CHECKING([if generic_permission take 2 or 4 arguments])
1116 LB_LINUX_TRY_COMPILE([
1117 #include <linux/fs.h>
1119 generic_permission(NULL, 0);
1121 AC_DEFINE(HAVE_GENERIC_PERMISSION_2ARGS, 1,
1122 [generic_permission taken 2 arguments])
1123 AC_MSG_RESULT([yes, 2 args])
1125 LB_LINUX_TRY_COMPILE([
1126 #include <linux/fs.h>
1128 generic_permission(NULL, 0, 0, NULL);
1130 AC_DEFINE(HAVE_GENERIC_PERMISSION_4ARGS, 1,
1131 [generic_permission taken 4 arguments])
1132 AC_MSG_RESULT([yes, 4 args])
1140 # 3.1 renames lock-manager ops(lock_manager_operations) from fl_xxx to lm_xxx
1141 # see kernel commit 8fb47a4fbf858a164e973b8ea8ef5e83e61f2e50
1143 AC_DEFUN([LC_LM_XXX_LOCK_MANAGER_OPS],
1144 [AC_MSG_CHECKING([if lock-manager ops renamed to lm_xxx])
1145 LB_LINUX_TRY_COMPILE([
1146 #include <linux/fs.h>
1148 struct lock_manager_operations lm_ops;
1149 lm_ops.lm_compare_owner = NULL;
1151 AC_DEFINE(HAVE_LM_XXX_LOCK_MANAGER_OPS, 1,
1152 [lock-manager ops renamed to lm_xxx])
1153 AC_MSG_RESULT([yes])
1160 # 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait/
1161 # inode_dio_done instead.
1162 # see kernel commit bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3
1164 AC_DEFUN([LC_INODE_DIO_WAIT],
1165 [AC_MSG_CHECKING([if inode->i_alloc_sem is killed and use inode_dio_wait/done.])
1166 LB_LINUX_TRY_COMPILE([
1167 #include <linux/fs.h>
1169 inode_dio_wait((struct inode *)0);
1170 inode_dio_done((struct inode *)0);
1172 AC_DEFINE(HAVE_INODE_DIO_WAIT, 1,
1173 [inode->i_alloc_sem is killed and use inode_dio_wait/done])
1174 AC_MSG_RESULT([yes])
1181 # 3.1 adds get_acl method to inode_operations to read ACL from disk.
1182 # see kernel commit 4e34e719e457f2e031297175410fc0bd4016a085
1184 AC_DEFUN([LC_IOP_GET_ACL],
1185 [AC_MSG_CHECKING([inode_operations has .get_acl member function])
1186 LB_LINUX_TRY_COMPILE([
1187 #include <linux/fs.h>
1189 struct inode_operations iop;
1192 AC_DEFINE(HAVE_IOP_GET_ACL, 1,
1193 [inode_operations has .get_acl member function])
1194 AC_MSG_RESULT([yes])
1201 # 3.1.1 has ext4_blocks_for_truncate
1203 AC_DEFUN([LC_BLOCKS_FOR_TRUNCATE],
1204 [AC_MSG_CHECKING([if kernel has ext4_blocks_for_truncate])
1205 LB_LINUX_TRY_COMPILE([
1206 #include <linux/fs.h>
1207 #include "$LINUX/fs/ext4/ext4_jbd2.h"
1208 #include "$LINUX/fs/ext4/truncate.h"
1210 ext4_blocks_for_truncate(NULL);
1212 AC_MSG_RESULT([yes])
1213 AC_DEFINE(HAVE_BLOCKS_FOR_TRUNCATE, 1,
1214 [kernel has ext4_blocks_for_truncate])
1221 # 3.1 introduced generic_file_llseek_size()
1223 AC_DEFUN([LC_FILE_LLSEEK_SIZE],
1224 [LB_CHECK_SYMBOL_EXPORT([generic_file_llseek_size],
1226 [AC_DEFINE(HAVE_FILE_LLSEEK_SIZE, 1,
1227 [generic_file_llseek_size is exported by the kernel])])
1231 # 3.2 request_queue.make_request_fn defined as function returns with void
1232 # see kernel commit 5a7bbad27a410350e64a2d7f5ec18fc73836c14f
1234 AC_DEFUN([LC_HAVE_VOID_MAKE_REQUEST_FN],
1235 [AC_MSG_CHECKING([if request_queue.make_request_fn returns void but not int])
1236 LB_LINUX_TRY_COMPILE([
1237 #include <linux/blkdev.h>
1240 make_request_fn *mrf;
1241 ret = mrf(NULL, NULL);
1245 AC_DEFINE(HAVE_VOID_MAKE_REQUEST_FN, 1,
1246 [request_queue.make_request_fn returns void but not int])
1247 AC_MSG_RESULT([yes])
1252 # 3.2 protects inode->i_nlink from direct modification
1253 # see kernel commit a78ef704a8dd430225955f0709b22d4a6ba21deb
1254 # at the same time adds set_nlink(), so checks set_nlink() for it.
1256 AC_DEFUN([LC_HAVE_PROTECT_I_NLINK],
1257 [AC_MSG_CHECKING([if inode->i_nlink is protected from direct modification])
1258 LB_LINUX_TRY_COMPILE([
1259 #include <linux/fs.h>
1264 AC_DEFINE(HAVE_PROTECT_I_NLINK, 1,
1265 [inode->i_nlink is protected from direct modification])
1266 AC_MSG_RESULT([yes])
1273 # 3.3 introduces migrate_mode.h and migratepage has 4 args
1275 AC_DEFUN([LC_HAVE_MIGRATE_HEADER],
1276 [LB_CHECK_FILE([$LINUX/include/linux/migrate.h],[
1277 AC_DEFINE(HAVE_MIGRATE_H, 1,
1278 [kernel has include/linux/migrate.h])
1279 ],[LB_CHECK_FILE([$LINUX/include/linux/migrate_mode.h],[
1280 AC_DEFINE(HAVE_MIGRATE_MODE_H, 1,
1281 [kernel has include/linux/migrate_mode.h])
1288 AC_DEFUN([LC_MIGRATEPAGE_4ARGS],
1289 [AC_MSG_CHECKING([if address_space_operations.migratepage has 4 args])
1290 LB_LINUX_TRY_COMPILE([
1291 #include <linux/fs.h>
1292 #ifdef HAVE_MIGRATE_H
1293 #include <linux/migrate.h>
1294 #elif defined(HAVE_MIGRATE_MODE_H)
1295 #include <linux/migrate_mode.h>
1298 struct address_space_operations aops;
1300 aops.migratepage(NULL, NULL, NULL, MIGRATE_ASYNC);
1302 AC_DEFINE(HAVE_MIGRATEPAGE_4ARGS, 1,
1303 [address_space_operations.migratepage has 4 args])
1304 AC_MSG_RESULT([yes])
1311 # 3.3 switchs super_operations to use dentry as parameter (but not vfsmount)
1312 # see kernel commit 34c80b1d93e6e20ca9dea0baf583a5b5510d92d4
1314 AC_DEFUN([LC_SUPEROPS_USE_DENTRY],
1315 [AC_MSG_CHECKING([if super_operations use dentry as parameter])
1316 tmp_flags="$EXTRA_KCFLAGS"
1317 EXTRA_KCFLAGS="-Werror"
1318 LB_LINUX_TRY_COMPILE([
1319 #include <linux/fs.h>
1320 int show_options(struct seq_file *seq, struct dentry *root){
1324 struct super_operations ops;
1325 ops.show_options = show_options;
1327 AC_DEFINE(HAVE_SUPEROPS_USE_DENTRY, 1,
1328 [super_operations use dentry as parameter])
1329 AC_MSG_RESULT([yes])
1333 EXTRA_KCFLAGS="$tmp_flags"
1337 # 3.3 switchs inode_operations to use umode_t as parameter (but not int)
1338 # see kernel commit 1a67aafb5f72a436ca044293309fa7e6351d6a35
1340 AC_DEFUN([LC_INODEOPS_USE_UMODE_T],
1341 [AC_MSG_CHECKING([if inode_operations use umode_t as parameter])
1342 tmp_flags="$EXTRA_KCFLAGS"
1343 EXTRA_KCFLAGS="-Werror"
1344 LB_LINUX_TRY_COMPILE([
1345 #include <linux/fs.h>
1346 #include <linux/types.h>
1347 int my_mknod(struct inode *dir, struct dentry *dchild,
1348 umode_t mode, dev_t dev)
1353 struct inode_operations ops;
1354 ops.mknod = my_mknod;
1356 AC_DEFINE(HAVE_INODEOPS_USE_UMODE_T, 1,
1357 [inode_operations use umode_t as parameter])
1358 AC_MSG_RESULT([yes])
1362 EXTRA_KCFLAGS="$tmp_flags"
1365 # 3.4 kmap_atomic removes second argument
1366 # see kernel commit 1ec9c5ddc17aa398f05646abfcbaf315b544e62f
1368 AC_DEFUN([LC_KMAP_ATOMIC_HAS_1ARG],
1369 [AC_MSG_CHECKING([if kmap_atomic has only 1 argument])
1370 LB_LINUX_TRY_COMPILE([
1371 #include <linux/highmem.h>
1375 AC_DEFINE(HAVE_KMAP_ATOMIC_HAS_1ARG, 1,
1376 [have kmap_atomic has only 1 argument])
1377 AC_MSG_RESULT([yes])
1384 # 3.4 switchs touch_atime to struct path
1385 # see kernel commit 68ac1234fb949b66941d94dce4157742799fc581
1387 AC_DEFUN([LC_TOUCH_ATIME_1ARG],
1388 [AC_MSG_CHECKING([if touch_atime use one argument])
1389 LB_LINUX_TRY_COMPILE([
1390 #include <linux/fs.h>
1392 touch_atime((struct path *)NULL);
1394 AC_DEFINE(HAVE_TOUCH_ATIME_1ARG, 1,
1395 [touch_atime use one argument])
1396 AC_MSG_RESULT([yes])
1403 # 3.4 converts d_alloc_root to d_make_root
1404 # see kernel commit 32991ab305ace7017c62f8eecbe5eb36dc32e13b
1406 AC_DEFUN([LC_HAVE_D_MAKE_ROOT],
1407 [AC_MSG_CHECKING([if have d_make_root])
1408 LB_LINUX_TRY_COMPILE([
1409 #include <linux/fs.h>
1411 d_make_root((struct inode *)NULL);
1413 AC_DEFINE(HAVE_D_MAKE_ROOT, 1,
1415 AC_MSG_RESULT([yes])
1422 # 3.5 renames end_writeback() back to clear_inode()...
1423 # see kernel commit dbd5768f87ff6fb0a4fe09c4d7b6c4a24de99430
1425 AC_DEFUN([LC_HAVE_CLEAR_INODE],
1426 [AC_MSG_CHECKING([if have clear_inode])
1427 LB_LINUX_TRY_COMPILE([
1428 #include <linux/fs.h>
1430 clear_inode((struct inode *)NULL);
1432 AC_DEFINE(HAVE_CLEAR_INODE, 1,
1434 AC_MSG_RESULT([yes])
1441 # 3.5 encode_fh has parent inode passed in directly
1442 # see kernel commit b0b0382b
1444 AC_DEFUN([LC_HAVE_ENCODE_FH_PARENT],
1445 [AC_MSG_CHECKING([if encode_fh have parent inode as parameter])
1446 tmp_flags="$EXTRA_KCFLAGS"
1447 EXTRA_KCFLAGS="-Werror"
1448 LB_LINUX_TRY_COMPILE([
1449 #include <linux/exportfs.h>
1450 #include <linux/fs.h>
1451 #include <linux/types.h>
1452 int ll_encode_fh(struct inode *i, __u32 *a, int *b, struct inode *p)
1457 struct export_operations exp_op;
1458 exp_op.encode_fh = ll_encode_fh;
1460 AC_DEFINE(HAVE_ENCODE_FH_PARENT, 1,
1461 [have parent inode as parameter])
1462 AC_MSG_RESULT([yes])
1466 EXTRA_KCFLAGS="$tmp_flags"
1469 # 3.5 has generic_file_llseek_size with 5 args
1470 AC_DEFUN([LC_FILE_LLSEEK_SIZE_5ARG],
1471 [AC_MSG_CHECKING([if kernel has generic_file_llseek_size with 5 args])
1472 LB_LINUX_TRY_COMPILE([
1473 #include <linux/fs.h>
1475 generic_file_llseek_size(NULL, 0, 0, 0, 0);
1477 AC_MSG_RESULT([yes])
1478 AC_DEFINE(HAVE_FILE_LLSEEK_SIZE_5ARGS, 1,
1479 [kernel has generic_file_llseek_size with 5 args])
1486 # 3.6 switch i_dentry/d_alias from list to hlist
1488 AC_DEFUN([LC_HAVE_DENTRY_D_ALIAS_HLIST],
1489 [AC_MSG_CHECKING([if i_dentry/d_alias uses hlist])
1490 tmp_flags="$EXTRA_KCFLAGS"
1491 EXTRA_KCFLAGS="-Werror"
1492 LB_LINUX_TRY_COMPILE([
1493 #include <linux/fs.h>
1494 #include <linux/list.h>
1497 struct dentry dentry;
1498 struct hlist_head head;
1499 struct hlist_node node;
1500 inode.i_dentry = head;
1501 dentry.d_alias = node;
1503 AC_DEFINE(HAVE_DENTRY_D_ALIAS_HLIST, 1,
1504 [have i_dentry/d_alias uses hlist])
1505 AC_MSG_RESULT([yes])
1509 EXTRA_KCFLAGS="$tmp_flags"
1513 # 3.6 dentry_open uses struct path as first argument
1514 # see kernel commit 765927b2
1516 AC_DEFUN([LC_DENTRY_OPEN_USE_PATH],
1517 [AC_MSG_CHECKING([if dentry_open uses struct path as first argument])
1518 tmp_flags="$EXTRA_KCFLAGS"
1519 EXTRA_KCFLAGS="-Werror"
1520 LB_LINUX_TRY_COMPILE([
1521 #include <linux/fs.h>
1522 #include <linux/path.h>
1525 dentry_open(&path, 0, NULL);
1527 AC_DEFINE(HAVE_DENTRY_OPEN_USE_PATH, 1,
1528 [dentry_open uses struct path as first argument])
1529 AC_MSG_RESULT([yes])
1533 EXTRA_KCFLAGS="$tmp_flags"
1537 # 3.6 vfs adds iop->atomic_open
1539 AC_DEFUN([LC_HAVE_IOP_ATOMIC_OPEN],
1540 [AC_MSG_CHECKING([if iop has atomic_open])
1541 LB_LINUX_TRY_COMPILE([
1542 #include <linux/fs.h>
1544 struct inode_operations iop;
1545 iop.atomic_open = NULL;
1547 AC_DEFINE(HAVE_IOP_ATOMIC_OPEN, 1,
1548 [have iop atomic_open])
1549 AC_MSG_RESULT([yes])
1556 # 3.7 posix_acl_{to,from}_xattr take struct user_namespace
1558 AC_DEFUN([LC_HAVE_POSIXACL_USER_NS],
1559 [AC_MSG_CHECKING([if posix_acl_to_xattr takes struct user_namespace])
1560 LB_LINUX_TRY_COMPILE([
1561 #include <linux/fs.h>
1562 #include <linux/posix_acl_xattr.h>
1564 posix_acl_to_xattr((struct user_namespace *)NULL, NULL, NULL, 0);
1566 AC_DEFINE(HAVE_POSIXACL_USER_NS, 1,
1567 [posix_acl_to_xattr takes struct user_namespace])
1568 AC_MSG_RESULT([yes])
1577 # Lustre linux kernel checks
1579 AC_DEFUN([LC_PROG_LINUX],
1583 LC_CONFIG_LIBLUSTRE_RECOVERY
1584 LC_CONFIG_HEALTH_CHECK_WRITE
1585 LC_CONFIG_LRU_RESIZE
1586 LC_LLITE_LLOOP_MODULE
1589 LC_EXPORT_TRUNCATE_COMPLETE
1600 #2.6.18 + RHEL5 (fc6)
1607 # raid5-zerocopy patch
1611 LC_INVALIDATE_BDEV_2ARG
1612 LC_FS_RENAME_DOES_D_MOVE
1615 LC_UNREGISTER_BLKDEV_RETURN_INT
1623 LC_FS_STRUCT_USE_PATH
1626 LC_SECURITY_PLUG # for SLES10 SP2
1627 LC_INODE_PERMISION_2ARGS
1632 # 2.6.27.15-2 sles11
1637 LC_BLK_QUEUE_MAX_SEGMENTS
1641 LC_HAVE_DQUOT_FS_DISK_QUOTA
1642 LC_HAVE_DQUOT_SUSPEND
1646 LC_EXPORT_SIMPLE_SETATTR
1650 LC_SBOPS_EVICT_INODE
1656 LC_BLKDEV_GET_BY_DEV
1657 LC_GENERIC_PERMISSION
1658 LC_QUOTA_ON_USE_PATH
1665 LC_REQUEST_QUEUE_UNPLUG_FN
1666 LC_HAVE_FSTYPE_MOUNT
1669 LC_DIRTY_INODE_WITH_FLAG
1672 LC_LM_XXX_LOCK_MANAGER_OPS
1678 LC_BLOCKS_FOR_TRUNCATE
1681 LC_HAVE_VOID_MAKE_REQUEST_FN
1682 LC_HAVE_PROTECT_I_NLINK
1685 LC_HAVE_MIGRATE_HEADER
1686 LC_MIGRATEPAGE_4ARGS
1687 LC_SUPEROPS_USE_DENTRY
1688 LC_INODEOPS_USE_UMODE_T
1693 LC_KMAP_ATOMIC_HAS_1ARG
1697 LC_HAVE_ENCODE_FH_PARENT
1698 LC_FILE_LLSEEK_SIZE_5ARG
1701 LC_HAVE_DENTRY_D_ALIAS_HLIST
1702 LC_DENTRY_OPEN_USE_PATH
1703 LC_HAVE_IOP_ATOMIC_OPEN
1706 LC_HAVE_POSIXACL_USER_NS
1708 if test x$enable_server = xyes ; then
1709 AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
1710 LC_FUNC_DEV_SET_RDONLY
1718 # LC_CONFIG_CLIENT_SERVER
1720 # Build client/server sides of Lustre
1722 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
1723 [AC_MSG_CHECKING([whether to build Lustre server support])
1724 AC_ARG_ENABLE([server],
1725 AC_HELP_STRING([--disable-server],
1726 [disable Lustre server support]),
1727 [],[enable_server='yes'])
1728 AC_MSG_RESULT([$enable_server])
1730 AC_MSG_CHECKING([whether to build Lustre client support])
1731 AC_ARG_ENABLE([client],
1732 AC_HELP_STRING([--disable-client],
1733 [disable Lustre client support]),
1734 [],[enable_client='yes'])
1735 AC_MSG_RESULT([$enable_client])])
1738 # LC_CONFIG_LIBLUSTRE
1740 # whether to build liblustre
1742 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
1743 [AC_MSG_CHECKING([whether to build Lustre library])
1744 AC_ARG_ENABLE([liblustre],
1745 AC_HELP_STRING([--disable-liblustre],
1746 [disable building of Lustre library]),
1747 [],[enable_liblustre=$with_sysio])
1748 AC_MSG_RESULT([$enable_liblustre])
1749 # only build sysio if liblustre is built
1750 with_sysio="$enable_liblustre"
1752 AC_MSG_CHECKING([whether to build liblustre tests])
1753 AC_ARG_ENABLE([liblustre-tests],
1754 AC_HELP_STRING([--enable-liblustre-tests],
1755 [enable liblustre tests, if --disable-tests is used]),
1756 [],[enable_liblustre_tests=$enable_tests])
1757 if test x$enable_liblustre != xyes ; then
1758 enable_liblustre_tests='no'
1760 AC_MSG_RESULT([$enable_liblustre_tests])
1762 AC_MSG_CHECKING([whether to enable liblustre acl])
1763 AC_ARG_ENABLE([liblustre-acl],
1764 AC_HELP_STRING([--disable-liblustre-acl],
1765 [disable ACL support for liblustre]),
1766 [],[enable_liblustre_acl=yes])
1767 AC_MSG_RESULT([$enable_liblustre_acl])
1768 if test x$enable_liblustre_acl = xyes ; then
1769 AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
1772 # 2.6.29 blkdev_put has 2 arguments
1773 AC_DEFUN([LC_BLKDEV_PUT_2ARGS],
1774 [AC_MSG_CHECKING([blkdev_put needs 2 parameters])
1775 LB_LINUX_TRY_COMPILE([
1776 #include <linux/fs.h>
1778 blkdev_put(NULL, 0);
1780 AC_DEFINE(HAVE_BLKDEV_PUT_2ARGS, 1,
1781 [blkdev_put needs 2 paramters])
1782 AC_MSG_RESULT([yes])
1791 AC_ARG_ENABLE(mpitests,
1792 AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
1793 [include mpi tests]),
1804 MPICC_WRAPPER=$enableval
1814 if test x$enable_mpitests != xno; then
1815 AC_MSG_CHECKING([whether mpitests can be built])
1823 MPI_Initialized(&flag);
1826 AC_MSG_RESULT([yes])
1833 AC_SUBST(MPICC_WRAPPER)
1835 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
1836 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
1839 LC_CONFIG_LIBLUSTRE_RECOVERY
1845 # whether to enable quota support global control
1847 AC_DEFUN([LC_CONFIG_QUOTA],
1848 [AC_ARG_ENABLE([quota],
1849 AC_HELP_STRING([--enable-quota],
1850 [enable quota support]),
1851 [],[enable_quota='yes'])
1854 AC_DEFUN([LC_QUOTA],
1858 AC_CHECK_HEADER(sys/quota.h,
1859 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
1860 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
1866 # whether to enable split support
1868 AC_DEFUN([LC_CONFIG_SPLIT],
1869 [AC_MSG_CHECKING([whether to enable split support])
1870 AC_ARG_ENABLE([split],
1871 AC_HELP_STRING([--enable-split],
1872 [enable split support]),
1873 [],[enable_split='no'])
1874 AC_MSG_RESULT([$enable_split])
1875 if test x$enable_split != xno; then
1876 AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
1881 # LC_LLITE_LLOOP_MODULE
1882 # lloop_llite.ko does not currently work with page sizes
1885 AC_DEFUN([LC_LLITE_LLOOP_MODULE],
1886 [AC_MSG_CHECKING([whether to enable llite_lloop module])
1887 LB_LINUX_TRY_COMPILE([
1888 #include <asm/page.h>
1890 #if PAGE_SIZE >= 65536
1891 #error "PAGE_SIZE >= 65536"
1894 enable_llite_lloop_module='yes'
1895 AC_MSG_RESULT([yes])
1897 enable_llite_lloop_module='no'
1905 # configure support for optional OSD implementation
1907 AC_DEFUN([LC_OSD_ADDON],
1908 [AC_MSG_CHECKING([for osd])
1910 AC_HELP_STRING([--with-osd=path],
1911 [set path to optional osd]),
1914 no) ENABLEOSDADDON=0
1916 *) OSDADDON="${with_osd}"
1923 if test $ENABLEOSDADDON -eq 0; then
1927 OSDMODNAME=`basename $OSDADDON`
1928 if test -e $LUSTRE/$OSDMODNAME; then
1929 AC_MSG_RESULT([can't link])
1931 elif ln -s $OSDADDON $LUSTRE/$OSDMODNAME; then
1932 AC_MSG_RESULT([$OSDMODNAME])
1933 OSDADDON="subdir-m += $OSDMODNAME"
1935 AC_MSG_RESULT([can't link])
1945 # other configure checks
1947 AC_DEFUN([LC_CONFIGURE],
1948 [LC_CONFIG_OBD_BUFFER_SIZE
1950 if test $target_cpu == "i686" -o $target_cpu == "x86_64"; then
1951 CFLAGS="$CFLAGS -Werror"
1954 # maximum MDS thread count
1957 # include/liblustre.h
1958 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
1960 # liblustre/llite_lib.h
1961 AC_CHECK_HEADERS([xtio.h file.h])
1964 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
1967 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
1968 AC_CHECK_FUNCS([inet_ntoa])
1970 # libsysio/src/readlink.c
1973 # lvfs/prng.c - depends on linux/types.h from liblustre/dir.c
1974 AC_CHECK_HEADERS([linux/random.h], [], [],
1975 [#ifdef HAVE_LINUX_TYPES_H
1976 # include <linux/types.h>
1981 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
1983 # check for -lz support
1987 [AC_CHECK_HEADERS([zlib.h],
1989 AC_DEFINE([HAVE_ADLER], 1,
1990 [support alder32 checksum type])],
1991 [AC_MSG_WARN([No zlib-devel package found,
1992 unable to use adler32 checksum])])],
1993 [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
1998 AC_CHECK_LIB([selinux],
1999 [is_selinux_enabled],
2000 [AC_CHECK_HEADERS([selinux.h],
2001 [SELINUX="-lselinux"
2002 AC_DEFINE([HAVE_SELINUX], 1,
2003 [support for selinux ])],
2004 [AC_MSG_WARN([No selinux-devel package found,
2005 unable to build selinux enabled
2007 [AC_MSG_WARN([No selinux package found, unable to build selinux
2013 AC_ARG_ENABLE([mindf],
2014 AC_HELP_STRING([--enable-mindf],
2015 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
2017 if test "$enable_mindf" = "yes" ; then
2018 AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
2021 AC_ARG_ENABLE([fail_alloc],
2022 AC_HELP_STRING([--disable-fail-alloc],
2023 [disable randomly alloc failure]),
2024 [],[enable_fail_alloc=yes])
2025 AC_MSG_CHECKING([whether to randomly failing memory alloc])
2026 AC_MSG_RESULT([$enable_fail_alloc])
2027 if test x$enable_fail_alloc != xno ; then
2028 AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
2031 AC_ARG_ENABLE([invariants],
2032 AC_HELP_STRING([--enable-invariants],
2033 [enable invariant checking (cpu intensive)]),
2035 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
2036 AC_MSG_RESULT([$enable_invariants])
2037 if test x$enable_invariants = xyes ; then
2038 AC_DEFINE([CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK], 1, [enable invariant checking])
2041 AC_ARG_ENABLE([lu_ref],
2042 AC_HELP_STRING([--enable-lu_ref],
2043 [enable lu_ref reference tracking code]),
2045 AC_MSG_CHECKING([whether to track references with lu_ref])
2046 AC_MSG_RESULT([$enable_lu_ref])
2047 if test x$enable_lu_ref = xyes ; then
2048 AC_DEFINE([USE_LU_REF], 1, [enable lu_ref reference tracking code])
2051 AC_ARG_ENABLE([pgstate-track],
2052 AC_HELP_STRING([--enable-pgstate-track],
2053 [enable page state tracking]),
2054 [enable_pgstat_track='yes'],[])
2055 AC_MSG_CHECKING([whether to enable page state tracking])
2056 AC_MSG_RESULT([$enable_pgstat_track])
2057 if test x$enable_pgstat_track = xyes ; then
2058 AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
2059 [enable page state tracking code])
2070 # AM_CONDITIONALS for lustre
2072 AC_DEFUN([LC_CONDITIONALS],
2073 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
2074 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
2075 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
2076 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
2077 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
2078 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
2079 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
2080 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
2081 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
2082 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
2083 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
2084 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
2085 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
2086 AM_CONDITIONAL(LLITE_LLOOP, test x$enable_llite_lloop_module = xyes)
2092 # files that should be generated with AC_OUTPUT
2094 AC_DEFUN([LC_CONFIG_FILES],
2098 lustre/autoconf/Makefile
2099 lustre/conf/Makefile
2100 lustre/contrib/Makefile
2102 lustre/include/Makefile
2103 lustre/include/lustre_ver.h
2104 lustre/include/linux/Makefile
2105 lustre/include/darwin/Makefile
2106 lustre/include/lustre/Makefile
2107 lustre/kernel_patches/targets/2.6-rhel6.target
2108 lustre/kernel_patches/targets/2.6-rhel5.target
2109 lustre/kernel_patches/targets/2.6-sles11.target
2110 lustre/kernel_patches/targets/3.0-sles11.target
2111 lustre/kernel_patches/targets/2.6-fc11.target
2112 lustre/kernel_patches/targets/2.6-fc12.target
2113 lustre/kernel_patches/targets/2.6-fc15.target
2114 lustre/kernel_patches/targets/3.x-fc18.target
2115 lustre/ldlm/Makefile
2117 lustre/fid/autoMakefile
2118 lustre/liblustre/Makefile
2119 lustre/liblustre/tests/Makefile
2120 lustre/liblustre/tests/mpi/Makefile
2121 lustre/llite/Makefile
2122 lustre/llite/autoMakefile
2123 lustre/lclient/Makefile
2125 lustre/lov/autoMakefile
2126 lustre/lvfs/Makefile
2127 lustre/lvfs/autoMakefile
2129 lustre/mdc/autoMakefile
2131 lustre/lmv/autoMakefile
2132 lustre/lfsck/Makefile
2133 lustre/lfsck/autoMakefile
2135 lustre/mdt/autoMakefile
2137 lustre/mdd/autoMakefile
2139 lustre/fld/autoMakefile
2140 lustre/obdclass/Makefile
2141 lustre/obdclass/autoMakefile
2142 lustre/obdclass/linux/Makefile
2143 lustre/obdecho/Makefile
2144 lustre/obdecho/autoMakefile
2146 lustre/ofd/autoMakefile
2148 lustre/osc/autoMakefile
2150 lustre/ost/autoMakefile
2151 lustre/osd-ldiskfs/Makefile
2152 lustre/osd-ldiskfs/autoMakefile
2153 lustre/osd-zfs/Makefile
2154 lustre/osd-zfs/autoMakefile
2156 lustre/mgc/autoMakefile
2158 lustre/mgs/autoMakefile
2159 lustre/target/Makefile
2160 lustre/ptlrpc/Makefile
2161 lustre/ptlrpc/autoMakefile
2162 lustre/ptlrpc/gss/Makefile
2163 lustre/ptlrpc/gss/autoMakefile
2164 lustre/quota/Makefile
2165 lustre/quota/autoMakefile
2166 lustre/scripts/Makefile
2167 lustre/tests/Makefile
2168 lustre/tests/mpi/Makefile
2169 lustre/utils/Makefile
2170 lustre/utils/gss/Makefile
2172 lustre/osp/autoMakefile
2174 lustre/lod/autoMakefile
2175 lustre/obdclass/darwin/Makefile