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])
427 # 2.6.22 lost second parameter for invalidate_bdev
428 AC_DEFUN([LC_INVALIDATE_BDEV_2ARG],
429 [AC_MSG_CHECKING([if invalidate_bdev has second argument])
430 LB_LINUX_TRY_COMPILE([
431 #include <linux/buffer_head.h>
433 invalidate_bdev(NULL,0);
436 AC_DEFINE(HAVE_INVALIDATE_BDEV_2ARG, 1,
437 [invalidate_bdev has second argument])
444 # 2.6.19 check for FS_RENAME_DOES_D_MOVE flag
446 AC_DEFUN([LC_FS_RENAME_DOES_D_MOVE],
447 [AC_MSG_CHECKING([if kernel has FS_RENAME_DOES_D_MOVE flag])
448 LB_LINUX_TRY_COMPILE([
449 #include <linux/fs.h>
451 int v __attribute__ ((unused));
452 v = FS_RENAME_DOES_D_MOVE;
455 AC_DEFINE(HAVE_FS_RENAME_DOES_D_MOVE, 1, [kernel has FS_RENAME_DOES_D_MOVE flag])
463 # 2.6.23 have return type 'void' for unregister_blkdev
464 AC_DEFUN([LC_UNREGISTER_BLKDEV_RETURN_INT],
465 [AC_MSG_CHECKING([if unregister_blkdev return int])
466 LB_LINUX_TRY_COMPILE([
467 #include <linux/fs.h>
469 int i __attribute__ ((unused));
470 i = unregister_blkdev(0,NULL);
473 AC_DEFINE(HAVE_UNREGISTER_BLKDEV_RETURN_INT, 1,
474 [unregister_blkdev return int])
480 # 2.6.23 add code to wait other users to complete before removing procfs entry
481 AC_DEFUN([LC_PROCFS_USERS],
482 [AC_MSG_CHECKING([if kernel has pde_users member in procfs entry struct])
483 LB_LINUX_TRY_COMPILE([
484 #include <linux/proc_fs.h>
486 struct proc_dir_entry pde;
491 AC_DEFINE(HAVE_PROCFS_USERS, 1,
492 [kernel has pde_users member in procfs entry struct])
494 LB_LINUX_TRY_COMPILE([
495 #include "$LINUX/fs/proc/internal.h"
497 struct proc_dir_entry_aux pde_aux;
499 pde_aux.pde_users = 0;
502 AC_DEFINE(HAVE_PROCFS_USERS, 1,
503 [kernel has pde_users member in proc_dir_entry_aux])
512 # 2.6.24 has bio_endio with 2 args
513 AC_DEFUN([LC_BIO_ENDIO_2ARG],
514 [AC_MSG_CHECKING([if kernel has bio_endio with 2 args])
515 LB_LINUX_TRY_COMPILE([
516 #include <linux/bio.h>
521 AC_DEFINE(HAVE_BIO_ENDIO_2ARG, 1,
522 [kernel has bio_endio with 2 args])
528 # 2.6.24 removes long aged procfs entry -> deleted member
529 AC_DEFUN([LC_PROCFS_DELETED],
530 [AC_MSG_CHECKING([if kernel has deleted member in procfs entry struct])
531 LB_LINUX_TRY_COMPILE([
532 #include <linux/proc_fs.h>
534 struct proc_dir_entry pde;
536 pde.deleted = sizeof(pde);
539 AC_DEFINE(HAVE_PROCFS_DELETED, 1,
540 [kernel has deleted member in procfs entry struct])
548 # 2.6.26 isn't export set_fs_pwd and change paramter in fs struct
549 AC_DEFUN([LC_FS_STRUCT_USE_PATH],
550 [AC_MSG_CHECKING([fs_struct use path structure])
551 LB_LINUX_TRY_COMPILE([
552 #include <asm/atomic.h>
553 #include <linux/spinlock.h>
554 #include <linux/fs_struct.h>
558 fs.pwd = *((struct path *)sizeof(fs));
561 AC_DEFINE(HAVE_FS_STRUCT_USE_PATH, 1,
562 [fs_struct use path structure])
572 # LC_SECURITY_PLUG # for SLES10 SP2 (2.6.27)
573 # check security plug in sles10 sp2 kernel
574 AC_DEFUN([LC_SECURITY_PLUG],
575 [AC_MSG_CHECKING([If kernel has security plug support])
576 LB_LINUX_TRY_COMPILE([
577 #include <linux/fs.h>
578 #include <linux/stddef.h>
580 notify_change(NULL, NULL, NULL);
583 AC_DEFINE(HAVE_SECURITY_PLUG, 1,
584 [SLES10 SP2 use extra parameter in vfs])
590 AC_DEFUN([LC_INODE_PERMISION_2ARGS],
591 [AC_MSG_CHECKING([inode_operations->permission has two args])
592 LB_LINUX_TRY_COMPILE([
593 #include <linux/fs.h>
595 struct inode *inode __attribute__ ((unused));
598 inode->i_op->permission(NULL, 0);
600 AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
601 [inode_operations->permission has two args])
608 # 2.6.27 use 5th parameter in quota_on for remount.
609 AC_DEFUN([LC_QUOTA_ON_5ARGS],
610 [AC_MSG_CHECKING([quota_on needs 5 parameters])
611 LB_LINUX_TRY_COMPILE([
612 #include <linux/fs.h>
613 #include <linux/quota.h>
615 struct quotactl_ops *qop = NULL;
616 qop->quota_on(NULL, 0, 0, NULL, 0);
618 AC_DEFINE(HAVE_QUOTA_ON_5ARGS, 1,
619 [quota_on needs 5 paramters])
626 # 2.6.27 use 3th parameter in quota_off for remount.
627 AC_DEFUN([LC_QUOTA_OFF_3ARGS],
628 [AC_MSG_CHECKING([quota_off needs 3 parameters])
629 LB_LINUX_TRY_COMPILE([
630 #include <linux/fs.h>
631 #include <linux/quota.h>
633 struct quotactl_ops *qop = NULL;
634 qop->quota_off(NULL, 0, 0);
636 AC_DEFINE(HAVE_QUOTA_OFF_3ARGS, 1,
637 [quota_off needs 3 paramters])
644 # 2.6.34 has quotactl_ops->[sg]et_dqblk that take struct fs_disk_quota
645 AC_DEFUN([LC_HAVE_DQUOT_FS_DISK_QUOTA],
646 tmp_flags="$EXTRA_KCFLAGS"
647 EXTRA_KCFLAGS="-Werror"
648 [AC_MSG_CHECKING([if quotactl_ops.set_dqblk takes struct fs_disk_quota])
649 LB_LINUX_TRY_COMPILE([
650 #include <linux/fs.h>
651 #include <linux/quota.h>
653 struct quotactl_ops qops = {};
654 struct fs_disk_quota fdq;
655 qops.set_dqblk(NULL, 0, 0, &fdq);
657 AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1, [quotactl_ops.set_dqblk takes struct fs_disk_quota])
662 EXTRA_KCFLAGS="$tmp_flags"
665 # 2.6.34 has renamed dquot options to dquot_*, check for dquot_suspend
666 AC_DEFUN([LC_HAVE_DQUOT_SUSPEND],
667 [AC_MSG_CHECKING([if dquot_suspend is defined])
668 LB_LINUX_TRY_COMPILE([
669 #include <linux/quotaops.h>
671 dquot_suspend(NULL, -1);
673 AC_DEFINE(HAVE_DQUOT_SUSPEND, 1, [dquot_suspend is defined])
680 # LC_LOCK_MAP_ACQUIRE
681 # after 2.6.27 lock_map_acquire replaces lock_acquire
682 AC_DEFUN([LC_LOCK_MAP_ACQUIRE],
683 [AC_MSG_CHECKING([if lock_map_acquire is defined])
684 LB_LINUX_TRY_COMPILE([
685 #include <linux/lockdep.h>
687 lock_map_acquire(NULL);
690 AC_DEFINE(HAVE_LOCK_MAP_ACQUIRE, 1,
691 [lock_map_acquire is defined])
699 # 2.6.27 sles11 remove the bi_hw_segments
700 AC_DEFUN([LC_BI_HW_SEGMENTS],
701 [AC_MSG_CHECKING([struct bio has a bi_hw_segments field])
702 LB_LINUX_TRY_COMPILE([
703 #include <linux/bio.h>
706 io.bi_hw_segments = sizeof(io);
708 AC_DEFINE(HAVE_BI_HW_SEGMENTS, 1,
709 [struct bio has a bi_hw_segments field])
717 # 2.6.27 sles11 move the quotaio_v1{2}.h from include/linux to fs
718 # 2.6.32 move the quotaio_v1{2}.h from fs to fs/quota
719 AC_DEFUN([LC_HAVE_QUOTAIO_H],
720 [LB_CHECK_FILE([$LINUX/include/linux/quotaio_v2.h],[
721 AC_DEFINE(HAVE_QUOTAIO_H, 1,
722 [kernel has include/linux/quotaio_v2.h])
723 ],[LB_CHECK_FILE([$LINUX/fs/quotaio_v2.h],[
724 AC_DEFINE(HAVE_FS_QUOTAIO_H, 1,
725 [kernel has fs/quotaio_v1.h])
726 ],[LB_CHECK_FILE([$LINUX/fs/quota/quotaio_v2.h],[
727 AC_DEFINE(HAVE_FS_QUOTA_QUOTAIO_H, 1,
728 [kernel has fs/quota/quotaio_v2.h])
738 # 2.6.32 replaces 2 functions blk_queue_max_phys_segments and blk_queue_max_hw_segments by blk_queue_max_segments
739 AC_DEFUN([LC_BLK_QUEUE_MAX_SEGMENTS],
740 [AC_MSG_CHECKING([if blk_queue_max_segments is defined])
741 LB_LINUX_TRY_COMPILE([
742 #include <linux/blkdev.h>
744 blk_queue_max_segments(NULL, 0);
747 AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
748 [blk_queue_max_segments is defined])
757 # Check if kernel has been patched for 64-bit quota limits support.
758 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
759 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
760 # that in the absence of quotaio_v1.h in the kernel headers.
762 AC_DEFUN([LC_QUOTA64],[
763 AC_MSG_CHECKING([if kernel has 64-bit quota limits support])
764 tmp_flags="$EXTRA_KCFLAGS"
765 EXTRA_KCFLAGS="-I$LINUX/fs"
766 LB_LINUX_TRY_COMPILE([
767 #include <linux/kernel.h>
768 #include <linux/fs.h>
769 #if defined(HAVE_FS_QUOTA_QUOTAIO_H)
770 # include <quota/quotaio_v2.h>
771 struct v2r1_disk_dqblk dqblk_r1;
773 #include <linux/quota.h>
774 int ver = QFMT_VFS_V1;
777 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
780 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
781 AC_MSG_ERROR([You have got no 64-bit kernel quota support.])
785 EXTRA_KCFLAGS=$tmp_flags
788 # 2.6.32 set_cpus_allowed is no more defined if CONFIG_CPUMASK_OFFSTACK=yes
789 AC_DEFUN([LC_SET_CPUS_ALLOWED],
790 [AC_MSG_CHECKING([if kernel defines set_cpus_allowed])
791 LB_LINUX_TRY_COMPILE(
792 [#include <linux/sched.h>],
793 [struct task_struct *p = NULL;
794 cpumask_t mask = { { 0 } };
795 (void) set_cpus_allowed(p, mask);],
796 [AC_MSG_RESULT([yes])
797 AC_DEFINE(HAVE_SET_CPUS_ALLOWED, 1,
798 [set_cpus_allowed is exported by the kernel])],
799 [AC_MSG_RESULT([no])] )])
802 # 2.6.36 fs_struct.lock use spinlock instead of rwlock.
804 AC_DEFUN([LC_FS_STRUCT_RWLOCK],
805 [AC_MSG_CHECKING([if fs_struct.lock use rwlock])
806 LB_LINUX_TRY_COMPILE([
807 #include <asm/atomic.h>
808 #include <linux/spinlock.h>
809 #include <linux/fs_struct.h>
811 ((struct fs_struct *)0)->lock = (rwlock_t){ 0 };
813 AC_DEFINE(HAVE_FS_STRUCT_RWLOCK, 1,
814 [fs_struct.lock use rwlock])
822 # 2.6.36 super_operations add evict_inode method. it hybird of
823 # delete_inode & clear_inode.
825 AC_DEFUN([LC_SBOPS_EVICT_INODE],
826 [AC_MSG_CHECKING([if super_operations.evict_inode exist])
827 LB_LINUX_TRY_COMPILE([
828 #include <linux/fs.h>
830 ((struct super_operations *)0)->evict_inode(NULL);
832 AC_DEFINE(HAVE_SBOPS_EVICT_INODE, 1,
833 [super_operations.evict_inode() is exist in kernel])
841 # 2.6.35 file_operations.fsync taken 2 arguments.
842 # 3.0.0 file_operations.fsync takes 4 arguments.
844 AC_DEFUN([LC_FILE_FSYNC],
845 [AC_MSG_CHECKING([if file_operations.fsync takes 4 or 2 arguments])
846 LB_LINUX_TRY_COMPILE([
847 #include <linux/fs.h>
849 ((struct file_operations *)0)->fsync(NULL, 0, 0, 0);
851 AC_DEFINE(HAVE_FILE_FSYNC_4ARGS, 1,
852 [file_operations.fsync takes 4 arguments])
853 AC_MSG_RESULT([yes, 4 args])
855 LB_LINUX_TRY_COMPILE([
856 #include <linux/fs.h>
858 ((struct file_operations *)0)->fsync(NULL, 0);
860 AC_DEFINE(HAVE_FILE_FSYNC_2ARGS, 1,
861 [file_operations.fsync takes 2 arguments])
862 AC_MSG_RESULT([yes, 2 args])
870 # 2.6.37 remove kernel_locked
872 AC_DEFUN([LC_KERNEL_LOCKED],
873 [AC_MSG_CHECKING([if kernel_locked is defined])
874 LB_LINUX_TRY_COMPILE([
875 #include <linux/smp_lock.h>
880 AC_DEFINE(HAVE_KERNEL_LOCKED, 1,
881 [kernel_locked is defined])
888 # 2.6.38 dentry_operations.d_compare() taken 7 arguments.
890 AC_DEFUN([LC_D_COMPARE_7ARGS],
891 [AC_MSG_CHECKING([if d_compare taken 7 arguments])
892 LB_LINUX_TRY_COMPILE([
893 #include <linux/dcache.h>
895 ((struct dentry_operations*)0)->d_compare(NULL,NULL,NULL,NULL,0,NULL,NULL);
897 AC_DEFINE(HAVE_D_COMPARE_7ARGS, 1,
898 [d_compare need 7 arguments])
906 # 2.6.38 dentry_operations.d_delete() defined 'const' for 1st parameter.
908 AC_DEFUN([LC_D_DELETE_CONST],
909 [AC_MSG_CHECKING([if d_delete has const declare on first parameter])
910 tmp_flags="$EXTRA_KCFLAGS"
911 EXTRA_KCFLAGS="-Werror"
912 LB_LINUX_TRY_COMPILE([
913 #include <linux/dcache.h>
915 const struct dentry *d = NULL;
916 ((struct dentry_operations*)0)->d_delete(d);
918 AC_DEFINE(HAVE_D_DELETE_CONST, const,
919 [d_delete first parameter declared const])
922 AC_DEFINE(HAVE_D_DELETE_CONST, , [])
925 EXTRA_KCFLAGS="$tmp_flags"
929 # 2.6.38 dcache_lock removed. rcu-walk commited.
931 AC_DEFUN([LC_DCACHE_LOCK],
932 [AC_MSG_CHECKING([if dcache_lock is exist])
933 LB_LINUX_TRY_COMPILE([
934 #include <linux/dcache.h>
936 spin_lock(&dcache_lock);
938 AC_DEFINE(HAVE_DCACHE_LOCK, 1,
939 [dcache_lock is exist])
947 # 2.6.38 inode.i_rcu added.
949 AC_DEFUN([LC_INODE_I_RCU],
950 [AC_MSG_CHECKING([if inode.i_rcu exists])
951 LB_LINUX_TRY_COMPILE([
952 #include <linux/fs.h>
955 struct rcu_head rcu = {};
958 AC_DEFINE(HAVE_INODE_I_RCU, 1,
959 [inode.i_rcu exists])
967 # 2.6.38 export blkdev_get_by_dev
969 AC_DEFUN([LC_BLKDEV_GET_BY_DEV],
970 [LB_CHECK_SYMBOL_EXPORT([blkdev_get_by_dev],
972 AC_DEFINE(HAVE_BLKDEV_GET_BY_DEV, 1,
973 [blkdev_get_by_dev is exported by the kernel])
979 # 2.6.38 use path as 4th parameter in quota_on.
981 AC_DEFUN([LC_QUOTA_ON_USE_PATH],
982 [AC_MSG_CHECKING([quota_on use path as parameter])
983 tmp_flags="$EXTRA_KCFLAGS"
984 EXTRA_KCFLAGS="-Werror"
985 LB_LINUX_TRY_COMPILE([
986 #include <linux/fs.h>
987 #include <linux/quota.h>
989 ((struct quotactl_ops *)0)->quota_on(NULL, 0, 0, ((struct path*)0));
991 AC_DEFINE(HAVE_QUOTA_ON_USE_PATH, 1,
992 [quota_on use path as 4th paramter])
997 EXTRA_KCFLAGS="$tmp_flags"
1001 # 2.6.38 export simple_setattr
1003 AC_DEFUN([LC_EXPORT_SIMPLE_SETATTR],
1004 [LB_CHECK_SYMBOL_EXPORT([simple_setattr],
1006 AC_DEFINE(HAVE_SIMPLE_SETATTR, 1,
1007 [simple_setattr is exported by the kernel])
1013 # 2.6.39 remove unplug_fn from request_queue.
1015 AC_DEFUN([LC_REQUEST_QUEUE_UNPLUG_FN],
1016 [AC_MSG_CHECKING([if request_queue has unplug_fn field])
1017 LB_LINUX_TRY_COMPILE([
1018 #include <linux/blkdev.h>
1020 do{ }while(sizeof(((struct request_queue *)0)->unplug_fn));
1022 AC_DEFINE(HAVE_REQUEST_QUEUE_UNPLUG_FN, 1,
1023 [request_queue has unplug_fn field])
1024 AC_MSG_RESULT([yes])
1031 # 2.6.39 replace get_sb with mount in struct file_system_type
1033 AC_DEFUN([LC_HAVE_FSTYPE_MOUNT],
1034 [AC_MSG_CHECKING([if file_system_type has mount field])
1035 LB_LINUX_TRY_COMPILE([
1036 #include <linux/fs.h>
1038 struct file_system_type fst;
1039 void *i = (void *) fst.mount;
1041 AC_DEFINE(HAVE_FSTYPE_MOUNT, 1,
1042 [struct file_system_type has mount field])
1043 AC_MSG_RESULT([yes])
1050 # 3.0 dirty_inode() has a flag parameter
1051 # see kernel commit aa38572954ade525817fe88c54faebf85e5a61c0
1053 AC_DEFUN([LC_DIRTY_INODE_WITH_FLAG],
1054 [AC_MSG_CHECKING([if dirty_inode super_operation takes flag])
1055 LB_LINUX_TRY_COMPILE([
1056 #include <linux/fs.h>
1058 struct inode *inode;
1059 inode->i_sb->s_op->dirty_inode(NULL, 0);
1061 AC_DEFINE(HAVE_DIRTY_INODE_HAS_FLAG, 1,
1062 [dirty_inode super_operation takes flag])
1063 AC_MSG_RESULT([yes])
1070 # 2.6.38 generic_permission taken 4 parameters.
1071 # in fact, it means rcu-walk aware permission bring.
1073 # 3.1 generic_permission taken 2 parameters.
1074 # see kernel commit 2830ba7f34ebb27c4e5b8b6ef408cd6d74860890
1076 AC_DEFUN([LC_GENERIC_PERMISSION],
1077 [AC_MSG_CHECKING([if generic_permission take 2 or 4 arguments])
1078 LB_LINUX_TRY_COMPILE([
1079 #include <linux/fs.h>
1081 generic_permission(NULL, 0);
1083 AC_DEFINE(HAVE_GENERIC_PERMISSION_2ARGS, 1,
1084 [generic_permission taken 2 arguments])
1085 AC_MSG_RESULT([yes, 2 args])
1087 LB_LINUX_TRY_COMPILE([
1088 #include <linux/fs.h>
1090 generic_permission(NULL, 0, 0, NULL);
1092 AC_DEFINE(HAVE_GENERIC_PERMISSION_4ARGS, 1,
1093 [generic_permission taken 4 arguments])
1094 AC_MSG_RESULT([yes, 4 args])
1102 # 3.1 renames lock-manager ops(lock_manager_operations) from fl_xxx to lm_xxx
1103 # see kernel commit 8fb47a4fbf858a164e973b8ea8ef5e83e61f2e50
1105 AC_DEFUN([LC_LM_XXX_LOCK_MANAGER_OPS],
1106 [AC_MSG_CHECKING([if lock-manager ops renamed to lm_xxx])
1107 LB_LINUX_TRY_COMPILE([
1108 #include <linux/fs.h>
1110 struct lock_manager_operations lm_ops;
1111 lm_ops.lm_compare_owner = NULL;
1113 AC_DEFINE(HAVE_LM_XXX_LOCK_MANAGER_OPS, 1,
1114 [lock-manager ops renamed to lm_xxx])
1115 AC_MSG_RESULT([yes])
1122 # 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait/
1123 # inode_dio_done instead.
1124 # see kernel commit bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3
1126 AC_DEFUN([LC_INODE_DIO_WAIT],
1127 [AC_MSG_CHECKING([if inode->i_alloc_sem is killed and use inode_dio_wait/done.])
1128 LB_LINUX_TRY_COMPILE([
1129 #include <linux/fs.h>
1131 inode_dio_wait((struct inode *)0);
1132 inode_dio_done((struct inode *)0);
1134 AC_DEFINE(HAVE_INODE_DIO_WAIT, 1,
1135 [inode->i_alloc_sem is killed and use inode_dio_wait/done])
1136 AC_MSG_RESULT([yes])
1143 # 3.1 adds get_acl method to inode_operations to read ACL from disk.
1144 # see kernel commit 4e34e719e457f2e031297175410fc0bd4016a085
1146 AC_DEFUN([LC_IOP_GET_ACL],
1147 [AC_MSG_CHECKING([inode_operations has .get_acl member function])
1148 LB_LINUX_TRY_COMPILE([
1149 #include <linux/fs.h>
1151 struct inode_operations iop;
1154 AC_DEFINE(HAVE_IOP_GET_ACL, 1,
1155 [inode_operations has .get_acl member function])
1156 AC_MSG_RESULT([yes])
1163 # 3.1.1 has ext4_blocks_for_truncate
1165 AC_DEFUN([LC_BLOCKS_FOR_TRUNCATE],
1166 [AC_MSG_CHECKING([if kernel has ext4_blocks_for_truncate])
1167 LB_LINUX_TRY_COMPILE([
1168 #include <linux/fs.h>
1169 #include "$LINUX/fs/ext4/ext4_jbd2.h"
1170 #include "$LINUX/fs/ext4/truncate.h"
1172 ext4_blocks_for_truncate(NULL);
1174 AC_MSG_RESULT([yes])
1175 AC_DEFINE(HAVE_BLOCKS_FOR_TRUNCATE, 1,
1176 [kernel has ext4_blocks_for_truncate])
1183 # 3.1 introduced generic_file_llseek_size()
1185 AC_DEFUN([LC_FILE_LLSEEK_SIZE],
1186 [LB_CHECK_SYMBOL_EXPORT([generic_file_llseek_size],
1188 [AC_DEFINE(HAVE_FILE_LLSEEK_SIZE, 1,
1189 [generic_file_llseek_size is exported by the kernel])])
1193 # 3.2 request_queue.make_request_fn defined as function returns with void
1194 # see kernel commit 5a7bbad27a410350e64a2d7f5ec18fc73836c14f
1196 AC_DEFUN([LC_HAVE_VOID_MAKE_REQUEST_FN],
1197 [AC_MSG_CHECKING([if request_queue.make_request_fn returns void but not int])
1198 LB_LINUX_TRY_COMPILE([
1199 #include <linux/blkdev.h>
1202 make_request_fn *mrf;
1203 ret = mrf(NULL, NULL);
1207 AC_DEFINE(HAVE_VOID_MAKE_REQUEST_FN, 1,
1208 [request_queue.make_request_fn returns void but not int])
1209 AC_MSG_RESULT([yes])
1214 # 3.2 protects inode->i_nlink from direct modification
1215 # see kernel commit a78ef704a8dd430225955f0709b22d4a6ba21deb
1216 # at the same time adds set_nlink(), so checks set_nlink() for it.
1218 AC_DEFUN([LC_HAVE_PROTECT_I_NLINK],
1219 [AC_MSG_CHECKING([if inode->i_nlink is protected from direct modification])
1220 LB_LINUX_TRY_COMPILE([
1221 #include <linux/fs.h>
1226 AC_DEFINE(HAVE_PROTECT_I_NLINK, 1,
1227 [inode->i_nlink is protected from direct modification])
1228 AC_MSG_RESULT([yes])
1235 # 3.3 introduces migrate_mode.h and migratepage has 4 args
1237 AC_DEFUN([LC_HAVE_MIGRATE_HEADER],
1238 [LB_CHECK_FILE([$LINUX/include/linux/migrate.h],[
1239 AC_DEFINE(HAVE_MIGRATE_H, 1,
1240 [kernel has include/linux/migrate.h])
1241 ],[LB_CHECK_FILE([$LINUX/include/linux/migrate_mode.h],[
1242 AC_DEFINE(HAVE_MIGRATE_MODE_H, 1,
1243 [kernel has include/linux/migrate_mode.h])
1250 AC_DEFUN([LC_MIGRATEPAGE_4ARGS],
1251 [AC_MSG_CHECKING([if address_space_operations.migratepage has 4 args])
1252 LB_LINUX_TRY_COMPILE([
1253 #include <linux/fs.h>
1254 #ifdef HAVE_MIGRATE_H
1255 #include <linux/migrate.h>
1256 #elif defined(HAVE_MIGRATE_MODE_H)
1257 #include <linux/migrate_mode.h>
1260 struct address_space_operations aops;
1262 aops.migratepage(NULL, NULL, NULL, MIGRATE_ASYNC);
1264 AC_DEFINE(HAVE_MIGRATEPAGE_4ARGS, 1,
1265 [address_space_operations.migratepage has 4 args])
1266 AC_MSG_RESULT([yes])
1273 # 3.3 switchs super_operations to use dentry as parameter (but not vfsmount)
1274 # see kernel commit 34c80b1d93e6e20ca9dea0baf583a5b5510d92d4
1276 AC_DEFUN([LC_SUPEROPS_USE_DENTRY],
1277 [AC_MSG_CHECKING([if super_operations use dentry as parameter])
1278 tmp_flags="$EXTRA_KCFLAGS"
1279 EXTRA_KCFLAGS="-Werror"
1280 LB_LINUX_TRY_COMPILE([
1281 #include <linux/fs.h>
1282 int show_options(struct seq_file *seq, struct dentry *root){
1286 struct super_operations ops;
1287 ops.show_options = show_options;
1289 AC_DEFINE(HAVE_SUPEROPS_USE_DENTRY, 1,
1290 [super_operations use dentry as parameter])
1291 AC_MSG_RESULT([yes])
1295 EXTRA_KCFLAGS="$tmp_flags"
1299 # 3.3 switchs inode_operations to use umode_t as parameter (but not int)
1300 # see kernel commit 1a67aafb5f72a436ca044293309fa7e6351d6a35
1302 AC_DEFUN([LC_INODEOPS_USE_UMODE_T],
1303 [AC_MSG_CHECKING([if inode_operations use umode_t as parameter])
1304 tmp_flags="$EXTRA_KCFLAGS"
1305 EXTRA_KCFLAGS="-Werror"
1306 LB_LINUX_TRY_COMPILE([
1307 #include <linux/fs.h>
1308 #include <linux/types.h>
1309 int my_mknod(struct inode *dir, struct dentry *dchild,
1310 umode_t mode, dev_t dev)
1315 struct inode_operations ops;
1316 ops.mknod = my_mknod;
1318 AC_DEFINE(HAVE_INODEOPS_USE_UMODE_T, 1,
1319 [inode_operations use umode_t as parameter])
1320 AC_MSG_RESULT([yes])
1324 EXTRA_KCFLAGS="$tmp_flags"
1327 # 3.4 kmap_atomic removes second argument
1328 # see kernel commit 1ec9c5ddc17aa398f05646abfcbaf315b544e62f
1330 AC_DEFUN([LC_KMAP_ATOMIC_HAS_1ARG],
1331 [AC_MSG_CHECKING([if kmap_atomic has only 1 argument])
1332 LB_LINUX_TRY_COMPILE([
1333 #include <linux/highmem.h>
1337 AC_DEFINE(HAVE_KMAP_ATOMIC_HAS_1ARG, 1,
1338 [have kmap_atomic has only 1 argument])
1339 AC_MSG_RESULT([yes])
1346 # 3.4 switchs touch_atime to struct path
1347 # see kernel commit 68ac1234fb949b66941d94dce4157742799fc581
1349 AC_DEFUN([LC_TOUCH_ATIME_1ARG],
1350 [AC_MSG_CHECKING([if touch_atime use one argument])
1351 LB_LINUX_TRY_COMPILE([
1352 #include <linux/fs.h>
1354 touch_atime((struct path *)NULL);
1356 AC_DEFINE(HAVE_TOUCH_ATIME_1ARG, 1,
1357 [touch_atime use one argument])
1358 AC_MSG_RESULT([yes])
1365 # 3.4 converts d_alloc_root to d_make_root
1366 # see kernel commit 32991ab305ace7017c62f8eecbe5eb36dc32e13b
1368 AC_DEFUN([LC_HAVE_D_MAKE_ROOT],
1369 [AC_MSG_CHECKING([if have d_make_root])
1370 LB_LINUX_TRY_COMPILE([
1371 #include <linux/fs.h>
1373 d_make_root((struct inode *)NULL);
1375 AC_DEFINE(HAVE_D_MAKE_ROOT, 1,
1377 AC_MSG_RESULT([yes])
1384 # 3.5 renames end_writeback() back to clear_inode()...
1385 # see kernel commit dbd5768f87ff6fb0a4fe09c4d7b6c4a24de99430
1387 AC_DEFUN([LC_HAVE_CLEAR_INODE],
1388 [AC_MSG_CHECKING([if have clear_inode])
1389 LB_LINUX_TRY_COMPILE([
1390 #include <linux/fs.h>
1392 clear_inode((struct inode *)NULL);
1394 AC_DEFINE(HAVE_CLEAR_INODE, 1,
1396 AC_MSG_RESULT([yes])
1403 # 3.5 encode_fh has parent inode passed in directly
1404 # see kernel commit b0b0382b
1406 AC_DEFUN([LC_HAVE_ENCODE_FH_PARENT],
1407 [AC_MSG_CHECKING([if encode_fh have parent inode as parameter])
1408 tmp_flags="$EXTRA_KCFLAGS"
1409 EXTRA_KCFLAGS="-Werror"
1410 LB_LINUX_TRY_COMPILE([
1411 #include <linux/exportfs.h>
1412 #include <linux/fs.h>
1413 #include <linux/types.h>
1414 int ll_encode_fh(struct inode *i, __u32 *a, int *b, struct inode *p)
1419 struct export_operations exp_op;
1420 exp_op.encode_fh = ll_encode_fh;
1422 AC_DEFINE(HAVE_ENCODE_FH_PARENT, 1,
1423 [have parent inode as parameter])
1424 AC_MSG_RESULT([yes])
1428 EXTRA_KCFLAGS="$tmp_flags"
1431 # 3.5 has generic_file_llseek_size with 5 args
1432 AC_DEFUN([LC_FILE_LLSEEK_SIZE_5ARG],
1433 [AC_MSG_CHECKING([if kernel has generic_file_llseek_size with 5 args])
1434 LB_LINUX_TRY_COMPILE([
1435 #include <linux/fs.h>
1437 generic_file_llseek_size(NULL, 0, 0, 0, 0);
1439 AC_MSG_RESULT([yes])
1440 AC_DEFINE(HAVE_FILE_LLSEEK_SIZE_5ARGS, 1,
1441 [kernel has generic_file_llseek_size with 5 args])
1448 # 3.6 switch i_dentry/d_alias from list to hlist
1450 AC_DEFUN([LC_HAVE_DENTRY_D_ALIAS_HLIST],
1451 [AC_MSG_CHECKING([if i_dentry/d_alias uses hlist])
1452 tmp_flags="$EXTRA_KCFLAGS"
1453 EXTRA_KCFLAGS="-Werror"
1454 LB_LINUX_TRY_COMPILE([
1455 #include <linux/fs.h>
1456 #include <linux/list.h>
1459 struct dentry dentry;
1460 struct hlist_head head;
1461 struct hlist_node node;
1462 inode.i_dentry = head;
1463 dentry.d_alias = node;
1465 AC_DEFINE(HAVE_DENTRY_D_ALIAS_HLIST, 1,
1466 [have i_dentry/d_alias uses hlist])
1467 AC_MSG_RESULT([yes])
1471 EXTRA_KCFLAGS="$tmp_flags"
1475 # 3.6 dentry_open uses struct path as first argument
1476 # see kernel commit 765927b2
1478 AC_DEFUN([LC_DENTRY_OPEN_USE_PATH],
1479 [AC_MSG_CHECKING([if dentry_open uses struct path as first argument])
1480 tmp_flags="$EXTRA_KCFLAGS"
1481 EXTRA_KCFLAGS="-Werror"
1482 LB_LINUX_TRY_COMPILE([
1483 #include <linux/fs.h>
1484 #include <linux/path.h>
1487 dentry_open(&path, 0, NULL);
1489 AC_DEFINE(HAVE_DENTRY_OPEN_USE_PATH, 1,
1490 [dentry_open uses struct path as first argument])
1491 AC_MSG_RESULT([yes])
1495 EXTRA_KCFLAGS="$tmp_flags"
1499 # 3.6 vfs adds iop->atomic_open
1501 AC_DEFUN([LC_HAVE_IOP_ATOMIC_OPEN],
1502 [AC_MSG_CHECKING([if iop has atomic_open])
1503 LB_LINUX_TRY_COMPILE([
1504 #include <linux/fs.h>
1506 struct inode_operations iop;
1507 iop.atomic_open = NULL;
1509 AC_DEFINE(HAVE_IOP_ATOMIC_OPEN, 1,
1510 [have iop atomic_open])
1511 AC_MSG_RESULT([yes])
1518 # 3.7 posix_acl_{to,from}_xattr take struct user_namespace
1520 AC_DEFUN([LC_HAVE_POSIXACL_USER_NS],
1521 [AC_MSG_CHECKING([if posix_acl_to_xattr takes struct user_namespace])
1522 LB_LINUX_TRY_COMPILE([
1523 #include <linux/fs.h>
1524 #include <linux/posix_acl_xattr.h>
1526 posix_acl_to_xattr((struct user_namespace *)NULL, NULL, NULL, 0);
1528 AC_DEFINE(HAVE_POSIXACL_USER_NS, 1,
1529 [posix_acl_to_xattr takes struct user_namespace])
1530 AC_MSG_RESULT([yes])
1537 # 3.9 uses hlist_for_each_entry with 3 args
1538 # b67bfe0d42cac56c512dd5da4b1b347a23f4b70a
1540 AC_DEFUN([LC_HAVE_HLIST_FOR_EACH_3ARG],
1541 [AC_MSG_CHECKING([if hlist_for_each_entry has 3 args])
1542 LB_LINUX_TRY_COMPILE([
1543 #include <linux/list.h>
1544 #include <linux/fs.h>
1546 struct inode *inode;
1547 struct dentry *dentry;
1548 hlist_for_each_entry(dentry, &inode->i_dentry, d_alias) {
1552 AC_DEFINE(HAVE_HLIST_FOR_EACH_3ARG, 1, [3 args])
1553 AC_MSG_RESULT([yes])
1562 # Lustre linux kernel checks
1564 AC_DEFUN([LC_PROG_LINUX],
1568 LC_CONFIG_LIBLUSTRE_RECOVERY
1569 LC_CONFIG_HEALTH_CHECK_WRITE
1570 LC_CONFIG_LRU_RESIZE
1571 LC_LLITE_LLOOP_MODULE
1574 LC_EXPORT_TRUNCATE_COMPLETE
1585 #2.6.18 + RHEL5 (fc6)
1588 # raid5-zerocopy patch
1592 LC_INVALIDATE_BDEV_2ARG
1593 LC_FS_RENAME_DOES_D_MOVE
1596 LC_UNREGISTER_BLKDEV_RETURN_INT
1604 LC_FS_STRUCT_USE_PATH
1607 LC_SECURITY_PLUG # for SLES10 SP2
1608 LC_INODE_PERMISION_2ARGS
1613 # 2.6.27.15-2 sles11
1618 LC_BLK_QUEUE_MAX_SEGMENTS
1622 LC_HAVE_DQUOT_FS_DISK_QUOTA
1623 LC_HAVE_DQUOT_SUSPEND
1627 LC_EXPORT_SIMPLE_SETATTR
1631 LC_SBOPS_EVICT_INODE
1637 LC_BLKDEV_GET_BY_DEV
1638 LC_GENERIC_PERMISSION
1639 LC_QUOTA_ON_USE_PATH
1646 LC_REQUEST_QUEUE_UNPLUG_FN
1647 LC_HAVE_FSTYPE_MOUNT
1650 LC_DIRTY_INODE_WITH_FLAG
1653 LC_LM_XXX_LOCK_MANAGER_OPS
1659 LC_BLOCKS_FOR_TRUNCATE
1662 LC_HAVE_VOID_MAKE_REQUEST_FN
1663 LC_HAVE_PROTECT_I_NLINK
1666 LC_HAVE_MIGRATE_HEADER
1667 LC_MIGRATEPAGE_4ARGS
1668 LC_SUPEROPS_USE_DENTRY
1669 LC_INODEOPS_USE_UMODE_T
1674 LC_KMAP_ATOMIC_HAS_1ARG
1678 LC_HAVE_ENCODE_FH_PARENT
1679 LC_FILE_LLSEEK_SIZE_5ARG
1682 LC_HAVE_DENTRY_D_ALIAS_HLIST
1683 LC_DENTRY_OPEN_USE_PATH
1684 LC_HAVE_IOP_ATOMIC_OPEN
1687 LC_HAVE_POSIXACL_USER_NS
1690 LC_HAVE_HLIST_FOR_EACH_3ARG
1693 if test x$enable_server = xyes ; then
1694 AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
1695 LC_FUNC_DEV_SET_RDONLY
1703 # LC_CONFIG_CLIENT_SERVER
1705 # Build client/server sides of Lustre
1707 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
1708 [AC_MSG_CHECKING([whether to build Lustre server support])
1709 AC_ARG_ENABLE([server],
1710 AC_HELP_STRING([--disable-server],
1711 [disable Lustre server support]),
1712 [],[enable_server='yes'])
1713 AC_MSG_RESULT([$enable_server])
1715 AC_MSG_CHECKING([whether to build Lustre client support])
1716 AC_ARG_ENABLE([client],
1717 AC_HELP_STRING([--disable-client],
1718 [disable Lustre client support]),
1719 [],[enable_client='yes'])
1720 AC_MSG_RESULT([$enable_client])])
1723 # LC_CONFIG_LIBLUSTRE
1725 # whether to build liblustre
1727 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
1728 [AC_MSG_CHECKING([whether to build Lustre library])
1729 AC_ARG_ENABLE([liblustre],
1730 AC_HELP_STRING([--disable-liblustre],
1731 [disable building of Lustre library]),
1732 [],[enable_liblustre=$with_sysio])
1733 AC_MSG_RESULT([$enable_liblustre])
1734 # only build sysio if liblustre is built
1735 with_sysio="$enable_liblustre"
1737 AC_MSG_CHECKING([whether to build liblustre tests])
1738 AC_ARG_ENABLE([liblustre-tests],
1739 AC_HELP_STRING([--enable-liblustre-tests],
1740 [enable liblustre tests, if --disable-tests is used]),
1741 [],[enable_liblustre_tests=$enable_tests])
1742 if test x$enable_liblustre != xyes ; then
1743 enable_liblustre_tests='no'
1745 AC_MSG_RESULT([$enable_liblustre_tests])
1747 AC_MSG_CHECKING([whether to enable liblustre acl])
1748 AC_ARG_ENABLE([liblustre-acl],
1749 AC_HELP_STRING([--disable-liblustre-acl],
1750 [disable ACL support for liblustre]),
1751 [],[enable_liblustre_acl=yes])
1752 AC_MSG_RESULT([$enable_liblustre_acl])
1753 if test x$enable_liblustre_acl = xyes ; then
1754 AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
1757 # 2.6.29 blkdev_put has 2 arguments
1758 AC_DEFUN([LC_BLKDEV_PUT_2ARGS],
1759 [AC_MSG_CHECKING([blkdev_put needs 2 parameters])
1760 LB_LINUX_TRY_COMPILE([
1761 #include <linux/fs.h>
1763 blkdev_put(NULL, 0);
1765 AC_DEFINE(HAVE_BLKDEV_PUT_2ARGS, 1,
1766 [blkdev_put needs 2 paramters])
1767 AC_MSG_RESULT([yes])
1776 AC_ARG_ENABLE(mpitests,
1777 AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
1778 [include mpi tests]),
1789 MPICC_WRAPPER=$enableval
1799 if test x$enable_mpitests != xno; then
1800 AC_MSG_CHECKING([whether mpitests can be built])
1808 MPI_Initialized(&flag);
1811 AC_MSG_RESULT([yes])
1818 AC_SUBST(MPICC_WRAPPER)
1820 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
1821 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
1824 LC_CONFIG_LIBLUSTRE_RECOVERY
1830 # whether to enable quota support global control
1832 AC_DEFUN([LC_CONFIG_QUOTA],
1833 [AC_ARG_ENABLE([quota],
1834 AC_HELP_STRING([--enable-quota],
1835 [enable quota support]),
1836 [],[enable_quota='yes'])
1839 AC_DEFUN([LC_QUOTA],
1843 AC_CHECK_HEADER(sys/quota.h,
1844 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
1845 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
1851 # whether to enable split support
1853 AC_DEFUN([LC_CONFIG_SPLIT],
1854 [AC_MSG_CHECKING([whether to enable split support])
1855 AC_ARG_ENABLE([split],
1856 AC_HELP_STRING([--enable-split],
1857 [enable split support]),
1858 [],[enable_split='no'])
1859 AC_MSG_RESULT([$enable_split])
1860 if test x$enable_split != xno; then
1861 AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
1866 # LC_LLITE_LLOOP_MODULE
1867 # lloop_llite.ko does not currently work with page sizes
1870 AC_DEFUN([LC_LLITE_LLOOP_MODULE],
1871 [AC_MSG_CHECKING([whether to enable llite_lloop module])
1872 LB_LINUX_TRY_COMPILE([
1873 #include <asm/page.h>
1875 #if PAGE_SIZE >= 65536
1876 #error "PAGE_SIZE >= 65536"
1879 enable_llite_lloop_module='yes'
1880 AC_MSG_RESULT([yes])
1882 enable_llite_lloop_module='no'
1890 # configure support for optional OSD implementation
1892 AC_DEFUN([LC_OSD_ADDON],
1893 [AC_MSG_CHECKING([for osd])
1895 AC_HELP_STRING([--with-osd=path],
1896 [set path to optional osd]),
1899 no) ENABLEOSDADDON=0
1901 *) OSDADDON="${with_osd}"
1908 if test $ENABLEOSDADDON -eq 0; then
1912 OSDMODNAME=`basename $OSDADDON`
1913 if test -e $LUSTRE/$OSDMODNAME; then
1914 AC_MSG_RESULT([can't link])
1916 elif ln -s $OSDADDON $LUSTRE/$OSDMODNAME; then
1917 AC_MSG_RESULT([$OSDMODNAME])
1918 OSDADDON="subdir-m += $OSDMODNAME"
1920 AC_MSG_RESULT([can't link])
1930 # other configure checks
1932 AC_DEFUN([LC_CONFIGURE],
1933 [LC_CONFIG_OBD_BUFFER_SIZE
1935 if test $target_cpu == "i686" -o $target_cpu == "x86_64"; then
1936 CFLAGS="$CFLAGS -Werror"
1939 # maximum MDS thread count
1942 # include/liblustre.h
1943 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
1945 # liblustre/llite_lib.h
1946 AC_CHECK_HEADERS([xtio.h file.h])
1949 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
1952 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
1953 AC_CHECK_FUNCS([inet_ntoa])
1955 # libsysio/src/readlink.c
1958 # lvfs/prng.c - depends on linux/types.h from liblustre/dir.c
1959 AC_CHECK_HEADERS([linux/random.h], [], [],
1960 [#ifdef HAVE_LINUX_TYPES_H
1961 # include <linux/types.h>
1966 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
1968 # check for -lz support
1972 [AC_CHECK_HEADERS([zlib.h],
1974 AC_DEFINE([HAVE_ADLER], 1,
1975 [support alder32 checksum type])],
1976 [AC_MSG_WARN([No zlib-devel package found,
1977 unable to use adler32 checksum])])],
1978 [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
1983 AC_CHECK_LIB([selinux],
1984 [is_selinux_enabled],
1985 [AC_CHECK_HEADERS([selinux.h],
1986 [SELINUX="-lselinux"
1987 AC_DEFINE([HAVE_SELINUX], 1,
1988 [support for selinux ])],
1989 [AC_MSG_WARN([No selinux-devel package found,
1990 unable to build selinux enabled
1992 [AC_MSG_WARN([No selinux package found, unable to build selinux
1998 AC_ARG_ENABLE([mindf],
1999 AC_HELP_STRING([--enable-mindf],
2000 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
2002 if test "$enable_mindf" = "yes" ; then
2003 AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
2006 AC_ARG_ENABLE([fail_alloc],
2007 AC_HELP_STRING([--disable-fail-alloc],
2008 [disable randomly alloc failure]),
2009 [],[enable_fail_alloc=yes])
2010 AC_MSG_CHECKING([whether to randomly failing memory alloc])
2011 AC_MSG_RESULT([$enable_fail_alloc])
2012 if test x$enable_fail_alloc != xno ; then
2013 AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
2016 AC_ARG_ENABLE([invariants],
2017 AC_HELP_STRING([--enable-invariants],
2018 [enable invariant checking (cpu intensive)]),
2020 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
2021 AC_MSG_RESULT([$enable_invariants])
2022 if test x$enable_invariants = xyes ; then
2023 AC_DEFINE([CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK], 1, [enable invariant checking])
2026 AC_ARG_ENABLE([lu_ref],
2027 AC_HELP_STRING([--enable-lu_ref],
2028 [enable lu_ref reference tracking code]),
2030 AC_MSG_CHECKING([whether to track references with lu_ref])
2031 AC_MSG_RESULT([$enable_lu_ref])
2032 if test x$enable_lu_ref = xyes ; then
2033 AC_DEFINE([USE_LU_REF], 1, [enable lu_ref reference tracking code])
2036 AC_ARG_ENABLE([pgstate-track],
2037 AC_HELP_STRING([--enable-pgstate-track],
2038 [enable page state tracking]),
2039 [enable_pgstat_track='yes'],[])
2040 AC_MSG_CHECKING([whether to enable page state tracking])
2041 AC_MSG_RESULT([$enable_pgstat_track])
2042 if test x$enable_pgstat_track = xyes ; then
2043 AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
2044 [enable page state tracking code])
2055 # AM_CONDITIONALS for lustre
2057 AC_DEFUN([LC_CONDITIONALS],
2058 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
2059 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
2060 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
2061 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
2062 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
2063 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
2064 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
2065 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
2066 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
2067 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
2068 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
2069 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
2070 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
2071 AM_CONDITIONAL(LLITE_LLOOP, test x$enable_llite_lloop_module = xyes)
2077 # files that should be generated with AC_OUTPUT
2079 AC_DEFUN([LC_CONFIG_FILES],
2083 lustre/autoconf/Makefile
2084 lustre/conf/Makefile
2085 lustre/contrib/Makefile
2087 lustre/include/Makefile
2088 lustre/include/lustre_ver.h
2089 lustre/include/linux/Makefile
2090 lustre/include/darwin/Makefile
2091 lustre/include/lustre/Makefile
2092 lustre/kernel_patches/targets/2.6-rhel6.target
2093 lustre/kernel_patches/targets/2.6-rhel5.target
2094 lustre/kernel_patches/targets/2.6-sles11.target
2095 lustre/kernel_patches/targets/3.0-sles11.target
2096 lustre/kernel_patches/targets/2.6-fc11.target
2097 lustre/kernel_patches/targets/2.6-fc12.target
2098 lustre/kernel_patches/targets/2.6-fc15.target
2099 lustre/kernel_patches/targets/3.x-fc18.target
2100 lustre/ldlm/Makefile
2102 lustre/fid/autoMakefile
2103 lustre/liblustre/Makefile
2104 lustre/liblustre/tests/Makefile
2105 lustre/liblustre/tests/mpi/Makefile
2106 lustre/llite/Makefile
2107 lustre/llite/autoMakefile
2108 lustre/lclient/Makefile
2110 lustre/lov/autoMakefile
2111 lustre/lvfs/Makefile
2112 lustre/lvfs/autoMakefile
2114 lustre/mdc/autoMakefile
2116 lustre/lmv/autoMakefile
2117 lustre/lfsck/Makefile
2118 lustre/lfsck/autoMakefile
2120 lustre/mdt/autoMakefile
2122 lustre/mdd/autoMakefile
2124 lustre/fld/autoMakefile
2125 lustre/obdclass/Makefile
2126 lustre/obdclass/autoMakefile
2127 lustre/obdclass/linux/Makefile
2128 lustre/obdecho/Makefile
2129 lustre/obdecho/autoMakefile
2131 lustre/ofd/autoMakefile
2133 lustre/osc/autoMakefile
2135 lustre/ost/autoMakefile
2136 lustre/osd-ldiskfs/Makefile
2137 lustre/osd-ldiskfs/autoMakefile
2138 lustre/osd-zfs/Makefile
2139 lustre/osd-zfs/autoMakefile
2141 lustre/mgc/autoMakefile
2143 lustre/mgs/autoMakefile
2144 lustre/target/Makefile
2145 lustre/ptlrpc/Makefile
2146 lustre/ptlrpc/autoMakefile
2147 lustre/ptlrpc/gss/Makefile
2148 lustre/ptlrpc/gss/autoMakefile
2149 lustre/quota/Makefile
2150 lustre/quota/autoMakefile
2151 lustre/scripts/Makefile
2152 lustre/tests/Makefile
2153 lustre/tests/mpi/Makefile
2154 lustre/utils/Makefile
2155 lustre/utils/gss/Makefile
2157 lustre/osp/autoMakefile
2159 lustre/lod/autoMakefile
2160 lustre/obdclass/darwin/Makefile