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='${pkgdatadir}/examples'
30 AC_SUBST(pkgexampledir)
36 # is the target os supported?
38 AC_DEFUN([LC_TARGET_SUPPORTED], [
47 ]) # LC_TARGET_SUPPORTED
50 # LC_CONFIG_OBD_BUFFER_SIZE
52 # the maximum buffer size of lctl ioctls
54 AC_DEFUN([LC_CONFIG_OBD_BUFFER_SIZE], [
55 AC_MSG_CHECKING([for maximum OBD ioctl size])
56 AC_ARG_WITH([obd-buffer-size],
57 AC_HELP_STRING([--with-obd-buffer-size=[size]],
58 [set lctl ioctl maximum bytes (default=8192)]),
59 [OBD_BUFFER_SIZE=$with_obd_buffer_size],
60 [OBD_BUFFER_SIZE=8192])
61 AC_MSG_RESULT([$OBD_BUFFER_SIZE bytes])
62 AC_DEFINE_UNQUOTED(CONFIG_LUSTRE_OBD_MAX_IOCTL_BUFFER, $OBD_BUFFER_SIZE,
64 ]) # LC_CONFIG_OBD_BUFFER_SIZE
67 # LC_GLIBC_SUPPORT_FHANDLES
69 AC_DEFUN([LC_GLIBC_SUPPORT_FHANDLES], [
70 AC_CHECK_FUNCS([name_to_handle_at],
71 [AC_DEFINE(HAVE_FHANDLE_GLIBC_SUPPORT, 1,
72 [file handle and related syscalls are supported])],
73 [AC_MSG_WARN([file handle and related syscalls are not supported])])
74 ]) # LC_GLIBC_SUPPORT_FHANDLES
77 # LC_FUNC_DEV_SET_RDONLY
79 # check whether dev_set_rdonly is exported. This is needed until we
80 # have another mechanism to fence IO from the underlying device.
82 AC_DEFUN([LC_FUNC_DEV_SET_RDONLY], [
83 LB_CHECK_EXPORT([dev_set_rdonly], [block/ll_rw_block.c block/blk-core.c],
84 [AC_DEFINE(HAVE_DEV_SET_RDONLY, 1,
85 [kernel exports dev_set_rdonly])],
86 [AC_MSG_WARN([kernel missing dev_set_rdonly patch for testing])])
87 ]) # LC_FUNC_DEV_SET_RDONLY
92 # Ensure stack size big than 8k in Lustre server (all kernels)
94 AC_DEFUN([LC_STACK_SIZE], [
95 LB_CHECK_COMPILE([if stack size big than 8k],
97 #include <linux/thread_info.h>
99 #if THREAD_SIZE < 8192
100 #error "stack size < 8192"
102 ], [], [AC_MSG_ERROR([
104 Lustre requires that Linux is configured with at least a 8KB stack.
111 # Allow the user to set the MDS thread upper limit
113 AC_DEFUN([LC_MDS_MAX_THREADS], [
114 AC_MSG_CHECKING([for maximum number of MDS threads])
115 AC_ARG_WITH([mds_max_threads],
116 AC_HELP_STRING([--with-mds-max-threads=count],
117 [maximum threads available on the MDS: (default=512)]),
118 [AC_DEFINE_UNQUOTED(MDS_MAX_THREADS, $with_mds_max_threads,
119 [maximum number of MDS threads])])
120 AC_MSG_RESULT([$with_mds_max_threads])
121 ]) # LC_MDS_MAX_THREADS
126 # the pinger is temporary, until we have the recovery node in place
128 AC_DEFUN([LC_CONFIG_PINGER], [
129 AC_MSG_CHECKING([whether to enable Lustre pinger support])
130 AC_ARG_ENABLE([pinger],
131 AC_HELP_STRING([--disable-pinger],
132 [disable recovery pinger support]),
133 [], [enable_pinger="yes"])
134 AC_MSG_RESULT([$enable_pinger])
135 AS_IF([test "x$enable_pinger" != xno],
136 [AC_DEFINE(ENABLE_PINGER, 1,[Use the Pinger])])
137 ]) # LC_CONFIG_PINGER
142 # do checksum of bulk data between client and OST
144 AC_DEFUN([LC_CONFIG_CHECKSUM], [
145 AC_MSG_CHECKING([whether to enable data checksum support])
146 AC_ARG_ENABLE([checksum],
147 AC_HELP_STRING([--disable-checksum],
148 [disable data checksum support]),
149 [], [enable_checksum="yes"])
150 AC_MSG_RESULT([$enable_checksum])
151 AS_IF([test "x$enable_checksum" != xno],
152 [AC_DEFINE(ENABLE_CHECKSUM, 1, [do data checksums])])
153 ]) # LC_CONFIG_CHECKSUM
156 # LC_CONFIG_HEALTH_CHECK_WRITE
158 # Turn off the actual write to the disk
160 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE], [
161 AC_MSG_CHECKING([whether to enable a write with the health check])
162 AC_ARG_ENABLE([health_write],
163 AC_HELP_STRING([--enable-health_write],
164 [enable disk writes when doing health check]),
165 [], [enable_health_write="no"])
166 AC_MSG_RESULT([$enable_health_write])
167 AS_IF([test "x$enable_health_write" != xno],
168 [AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, [Write when Checking Health])])
169 ]) # LC_CONFIG_HEALTH_CHECK_WRITE
172 # LC_CONFIG_LRU_RESIZE
174 AC_DEFUN([LC_CONFIG_LRU_RESIZE], [
175 AC_MSG_CHECKING([whether to enable lru self-adjusting])
176 AC_ARG_ENABLE([lru_resize],
177 AC_HELP_STRING([--enable-lru-resize],
178 [enable lru resize support]),
179 [], [enable_lru_resize="yes"])
180 AC_MSG_RESULT([$enable_lru_resize])
181 AS_IF([test "x$enable_lru_resize" != xno],
182 [AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])])
183 ]) # LC_CONFIG_LRU_RESIZE
188 # Quota support. The kernel must support CONFIG_QUOTA.
190 AC_DEFUN([LC_QUOTA_CONFIG], [
191 LB_CHECK_CONFIG_IM([QUOTA], [],
194 Lustre quota requires that CONFIG_QUOTA is enabled in your kernel.
199 # LC_EXPORT_TRUNCATE_COMPLETE_PAGE
201 # truncate_complete_page() has never been exported from an upstream kernel
202 # remove_from_page_cache() was exported between 2.6.35 and 2.6.38
203 # delete_from_page_cache() is exported from 2.6.39
205 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE_PAGE], [
206 LB_CHECK_EXPORT([truncate_complete_page], [mm/truncate.c],
207 [AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
208 [kernel export truncate_complete_page])])
209 LB_CHECK_EXPORT([remove_from_page_cache], [mm/filemap.c],
210 [AC_DEFINE(HAVE_REMOVE_FROM_PAGE_CACHE, 1,
211 [kernel export remove_from_page_cache])])
212 LB_CHECK_EXPORT([delete_from_page_cache], [mm/filemap.c],
213 [AC_DEFINE(HAVE_DELETE_FROM_PAGE_CACHE, 1,
214 [kernel export delete_from_page_cache])])
215 ]) # LC_EXPORT_TRUNCATE_COMPLETE_PAGE
220 AC_DEFUN([LC_CAPA_CRYPTO], [
221 LB_CHECK_CONFIG_IM([CRYPTO], [],
222 [AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])])
223 LB_CHECK_CONFIG_IM([CRYPTO_HMAC], [],
224 [AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])])
225 LB_CHECK_CONFIG_IM([CRYPTO_SHA1], [],
226 [AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])])
230 # LC_CONFIG_RMTCLIENT
233 dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
235 AC_DEFUN([LC_CONFIG_RMTCLIENT], [
236 LB_CHECK_CONFIG_IM([CRYPTO_AES], [],
239 Lustre remote client require that CONFIG_CRYPTO_AES is enabled in your kernel.
241 ]) # LC_CONFIG_RMTCLIENT
244 # LC_CONFIG_GSS_KEYRING
246 # default 'auto', tests for dependencies, if found, enables;
247 # only called if gss is enabled
249 AC_DEFUN([LC_CONFIG_GSS_KEYRING], [
250 AC_MSG_CHECKING([whether to enable gss keyring backend])
251 AC_ARG_ENABLE([gss_keyring],
252 [AC_HELP_STRING([--disable-gss-keyring],
253 [disable gss keyring backend])],
254 [], [enable_gss_keyring="auto"])
255 AC_MSG_RESULT([$enable_gss_keyring])
256 AS_IF([test "x$enable_gss_keyring" != xno], [
257 LB_CHECK_CONFIG_IM([KEYS], [], [
258 gss_keyring_conf_test="fail"
261 GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.
264 AC_CHECK_LIB([keyutils], [keyctl_search], [], [
265 gss_keyring_conf_test="fail"
268 libkeyutils is not found, which is required by gss keyring backend
271 AS_IF([test "x$gss_keyring_conf_test" != xfail], [
272 AC_DEFINE([HAVE_GSS_KEYRING], [1],
273 [Define this if you enable gss keyring backend])
274 enable_gss_keyring="yes"
276 AS_IF([test "x$enable_gss_keyring" = xyes], [
279 Cannot enable gss_keyring. See above for details.
284 Cannot enable gss keyring. See above for details.
289 ]) # LC_CONFIG_GSS_KEYRING
294 AC_DEFUN([LC_CONFIG_SUNRPC], [
295 LB_CHECK_CONFIG_IM([SUNRPC], [], [
296 AS_IF([test "x$sunrpc_required" = xyes], [
299 kernel SUNRPC support is required by using GSS.
302 ]) # LC_CONFIG_SUNRPC
305 # LC_CONFIG_GSS (default 'auto' (tests for dependencies, if found, enables))
307 # Build gss and related tools of Lustre. Currently both kernel and user space
308 # parts are depend on linux platform.
310 AC_DEFUN([LC_CONFIG_GSS], [
311 AC_MSG_CHECKING([whether to enable gss/krb5 support])
313 [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
314 [], [enable_gss="auto"])
315 AC_MSG_RESULT([$enable_gss])
317 AS_IF([test "x$enable_gss" != xno], [
318 LC_CONFIG_GSS_KEYRING
319 sunrpc_required=$enable_gss
323 LB_CHECK_CONFIG_IM([CRYPTO_MD5], [],
324 [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
325 LB_CHECK_CONFIG_IM([CRYPTO_SHA1], [],
326 [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
327 LB_CHECK_CONFIG_IM([CRYPTO_SHA256], [],
328 [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
329 LB_CHECK_CONFIG_IM([CRYPTO_SHA512], [],
330 [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
332 require_krb5=$enable_gss
336 AS_IF([test -n "$KRBDIR"], [
337 AC_CHECK_LIB([gssapi], [gss_export_lucid_sec_context], [
338 GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"
339 gss_conf_test="success"
341 AC_CHECK_LIB([gssglue], [gss_export_lucid_sec_context], [
342 GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue"
343 gss_conf_test="success"
345 AS_IF([test "x$enable_gss" = xyes], [
348 libgssapi or libgssglue is not found, which is required by GSS.
353 libgssapi or libgssglue is not found, which is required by GSS.
358 AC_SUBST(GSSAPI_LIBS)
361 AS_IF([test "x$gss_conf_test" = xsuccess], [
362 AC_DEFINE([HAVE_GSS], [1], [Define this is if you enable gss])
369 # LC_INODE_PERMISION_2ARGS
371 # up to v2.6.27 had a 3 arg version (inode, mask, nameidata)
372 # v2.6.27->v2.6.37 had a 2 arg version (inode, mask)
373 # v2.6.37->v3.0 had a 3 arg version (inode, mask, nameidata)
374 # v3.1 onward have a 2 arg version (inode, mask)
376 AC_DEFUN([LC_INODE_PERMISION_2ARGS], [
377 LB_CHECK_COMPILE([if 'inode_operations->permission' has two args],
378 inode_ops_permission_2args, [
379 #include <linux/fs.h>
381 struct inode *inode __attribute__ ((unused));
384 inode->i_op->permission(NULL, 0);
386 AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
387 [inode_operations->permission has two args])
389 ]) # LC_INODE_PERMISION_2ARGS
392 # LC_BLK_QUEUE_MAX_SEGMENTS
394 # 2.6.32 replaces 2 functions blk_queue_max_phys_segments and blk_queue_max_hw_segments by blk_queue_max_segments
396 AC_DEFUN([LC_BLK_QUEUE_MAX_SEGMENTS], [
397 LB_CHECK_COMPILE([if 'blk_queue_max_segments' is defined],
398 blk_queue_max_segments, [
399 #include <linux/blkdev.h>
401 blk_queue_max_segments(NULL, 0);
403 AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
404 [blk_queue_max_segments is defined])
406 ]) # LC_BLK_QUEUE_MAX_SEGMENTS
409 # LC_HAVE_DQUOT_FS_DISK_QUOTA
411 # 2.6.34 has quotactl_ops->[sg]et_dqblk that take struct fs_disk_quota
413 AC_DEFUN([LC_HAVE_DQUOT_FS_DISK_QUOTA], [
414 tmp_flags="$EXTRA_KCFLAGS"
415 EXTRA_KCFLAGS="-Werror"
416 LB_CHECK_COMPILE([if 'quotactl_ops.set_dqblk' takes struct fs_disk_quota],
418 #include <linux/fs.h>
419 #include <linux/quota.h>
421 ((struct quotactl_ops *)0)->set_dqblk(NULL, 0, 0, (struct fs_disk_quota*)0);
423 AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1,
424 [quotactl_ops.set_dqblk takes struct fs_disk_quota])
426 LB_CHECK_COMPILE([if 'quotactl_ops.set_dqblk' takes struct kqid & fs_disk_quota],
427 kqid_fs_disk_quota, [
428 #include <linux/fs.h>
429 #include <linux/quota.h>
431 ((struct quotactl_ops *)0)->set_dqblk((struct super_block*)0, *((struct kqid*)0), (struct fs_disk_quota*)0);
433 AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1,
434 [quotactl_ops.set_dqblk takes struct fs_disk_quota])
435 AC_DEFINE(HAVE_DQUOT_KQID, 1,
436 [quotactl_ops.set_dqblk takes struct kqid])
439 EXTRA_KCFLAGS="$tmp_flags"
440 ]) # LC_HAVE_DQUOT_FS_DISK_QUOTA
443 # LC_HAVE_DQUOT_SUSPEND
445 # 2.6.34 has renamed dquot options to dquot_*, check for dquot_suspend
447 AC_DEFUN([LC_HAVE_DQUOT_SUSPEND], [
448 LB_CHECK_COMPILE([if 'dquot_suspend' is defined],
450 #include <linux/quotaops.h>
452 dquot_suspend(NULL, -1);
454 AC_DEFINE(HAVE_DQUOT_SUSPEND, 1, [dquot_suspend is defined])
456 ]) # LC_HAVE_DQUOT_SUSPEND
461 # Check if kernel has been patched for 64-bit quota limits support.
462 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
463 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
464 # that in the absence of quotaio_v1.h in the kernel headers.
466 AC_DEFUN([LC_QUOTA64], [
467 tmp_flags="$EXTRA_KCFLAGS"
468 EXTRA_KCFLAGS="-I$LINUX/fs"
469 LB_CHECK_COMPILE([if kernel has 64-bit quota limits support],
471 #include <linux/kernel.h>
472 #include <linux/fs.h>
473 #if defined(HAVE_FS_QUOTA_QUOTAIO_H)
474 #include <quota/quotaio_v2.h>
475 struct v2r1_disk_dqblk dqblk_r1;
477 #include <linux/quota.h>
478 int ver = QFMT_VFS_V1;
481 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
483 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],
484 [AC_MSG_ERROR([You have got no 64-bit kernel quota support.])])
486 EXTRA_KCFLAGS=$tmp_flags
490 # LC_FS_STRUCT_RWLOCK
492 # 2.6.36 fs_struct.lock use spinlock instead of rwlock.
494 AC_DEFUN([LC_FS_STRUCT_RWLOCK], [
495 LB_CHECK_COMPILE([if 'fs_struct.lock' use rwlock],
497 #include <asm/atomic.h>
498 #include <linux/spinlock.h>
499 #include <linux/fs_struct.h>
501 ((struct fs_struct *)0)->lock = (rwlock_t){ 0 };
503 AC_DEFINE(HAVE_FS_STRUCT_RWLOCK, 1, [fs_struct.lock use rwlock])
505 ]) # LC_FS_STRUCT_RWLOCK
508 # LC_SBOPS_EVICT_INODE
510 # 2.6.36 super_operations add evict_inode method. it hybird of
511 # delete_inode & clear_inode.
513 AC_DEFUN([LC_SBOPS_EVICT_INODE], [
514 LB_CHECK_COMPILE([if 'super_operations.evict_inode' exist],
515 super_ops_evict_inode, [
516 #include <linux/fs.h>
518 ((struct super_operations *)0)->evict_inode(NULL);
520 AC_DEFINE(HAVE_SBOPS_EVICT_INODE, 1,
521 [super_operations.evict_inode() is exist in kernel])
523 ]) # LC_SBOPS_EVICT_INODE
528 # 2.6.35 file_operations.fsync taken 2 arguments.
529 # 3.0.0 file_operations.fsync takes 4 arguments.
531 AC_DEFUN([LC_FILE_FSYNC], [
532 LB_CHECK_COMPILE([if 'file_operations.fsync' takes 4 arguments],
533 file_ops_fsync_4args, [
534 #include <linux/fs.h>
536 ((struct file_operations *)0)->fsync(NULL, 0, 0, 0);
538 AC_DEFINE(HAVE_FILE_FSYNC_4ARGS, 1,
539 [file_operations.fsync takes 4 arguments])
541 LB_CHECK_COMPILE([if 'file_operations.fsync' takes 2 arguments],
542 file_ops_fsync_2args, [
543 #include <linux/fs.h>
545 ((struct file_operations *)0)->fsync(NULL, 0);
547 AC_DEFINE(HAVE_FILE_FSYNC_2ARGS, 1,
548 [file_operations.fsync takes 2 arguments])
556 # 2.6.37 remove kernel_locked
558 AC_DEFUN([LC_KERNEL_LOCKED], [
559 LB_CHECK_COMPILE([if 'kernel_locked' is defined],
561 #include <linux/smp_lock.h>
565 AC_DEFINE(HAVE_KERNEL_LOCKED, 1, [kernel_locked is defined])
567 ]) # LC_KERNEL_LOCKED
572 # 2.6.38 dentry_operations.d_compare() taken 7 arguments.
574 AC_DEFUN([LC_D_COMPARE_7ARGS], [
575 LB_CHECK_COMPILE([if 'dentry_operations.d_compare()' taken 7 arguments],
576 dentry_ops_d_compare_7arg, [
577 #include <linux/dcache.h>
579 ((struct dentry_operations*)0)->d_compare(NULL,NULL,NULL,NULL,0,NULL,NULL);
581 AC_DEFINE(HAVE_D_COMPARE_7ARGS, 1, [d_compare need 7 arguments])
583 ]) # LC_D_COMPARE_7ARGS
588 # 2.6.38 dentry_operations.d_delete() defined 'const' for 1st parameter.
590 AC_DEFUN([LC_D_DELETE_CONST], [
591 tmp_flags="$EXTRA_KCFLAGS"
592 EXTRA_KCFLAGS="-Werror"
593 LB_CHECK_COMPILE([if 'dentry_operations.d_delete()' has const declare on first parameter],
594 dentry_ops_d_delete_1st_const, [
595 #include <linux/dcache.h>
597 const struct dentry *d = NULL;
598 ((struct dentry_operations*)0)->d_delete(d);
600 AC_DEFINE(HAVE_D_DELETE_CONST, const,
601 [d_delete first parameter declared const])
603 AC_DEFINE(HAVE_D_DELETE_CONST, [],
604 [d_delete first parameter declared is not const])
606 EXTRA_KCFLAGS="$tmp_flags"
607 ]) # LC_D_DELETE_CONST
612 # 2.6.38 dcache_lock removed. rcu-walk commited.
614 AC_DEFUN([LC_DCACHE_LOCK], [
615 LB_CHECK_COMPILE([if 'dcache_lock' is exist],
617 #include <linux/dcache.h>
619 spin_lock(&dcache_lock);
621 AC_DEFINE(HAVE_DCACHE_LOCK, 1,
622 [dcache_lock is exist])
629 # 2.6.38 inode.i_rcu added.
631 AC_DEFUN([LC_INODE_I_RCU], [
632 LB_CHECK_COMPILE([if 'inode.i_rcu' exists],
634 #include <linux/fs.h>
637 struct rcu_head rcu = {};
640 AC_DEFINE(HAVE_INODE_I_RCU, 1,
641 [inode.i_rcu exists])
646 # LC_BLKDEV_GET_BY_DEV
648 # 2.6.38 export blkdev_get_by_dev
650 AC_DEFUN([LC_BLKDEV_GET_BY_DEV], [
651 LB_CHECK_EXPORT([blkdev_get_by_dev], [fs/block_dev.c],
652 [AC_DEFINE(HAVE_BLKDEV_GET_BY_DEV, 1,
653 [blkdev_get_by_dev is exported by the kernel])])
654 ]) # LC_BLKDEV_GET_BY_DEV
657 # LC_EXPORT_SIMPLE_SETATTR
659 # 2.6.38 export simple_setattr
661 AC_DEFUN([LC_EXPORT_SIMPLE_SETATTR], [
662 LB_CHECK_EXPORT([simple_setattr], [fs/libfs.c],
663 [AC_DEFINE(HAVE_SIMPLE_SETATTR, 1,
664 [simple_setattr is exported by the kernel])])
665 ]) # LC_EXPORT_SIMPLE_SETATTR
670 # truncate callback removed since 2.6.39
672 AC_DEFUN([LC_IOP_TRUNCATE], [
673 LB_CHECK_COMPILE([if 'inode_operations' has '.truncate' member function],
674 inode_ops_truncate, [
675 #include <linux/fs.h>
677 ((struct inode_operations *)0)->truncate(NULL);
679 AC_DEFINE(HAVE_INODEOPS_TRUNCATE, 1,
680 [inode_operations has .truncate member function])
685 # LC_REQUEST_QUEUE_UNPLUG_FN
687 # 2.6.39 remove unplug_fn from request_queue.
689 AC_DEFUN([LC_REQUEST_QUEUE_UNPLUG_FN], [
690 LB_CHECK_COMPILE([if 'request_queue' has 'unplug_fn' field],
691 request_queue_unplug_fn, [
692 #include <linux/blkdev.h>
694 do {} while(sizeof(((struct request_queue *)0)->unplug_fn));
696 AC_DEFINE(HAVE_REQUEST_QUEUE_UNPLUG_FN, 1,
697 [request_queue has unplug_fn field])
699 ]) # LC_REQUEST_QUEUE_UNPLUG_FN
702 # LC_HAVE_FSTYPE_MOUNT
704 # 2.6.39 replace get_sb with mount in struct file_system_type
706 AC_DEFUN([LC_HAVE_FSTYPE_MOUNT], [
707 LB_CHECK_COMPILE([if 'file_system_type' has 'mount' field],
708 file_system_type_mount, [
709 #include <linux/fs.h>
711 struct file_system_type fst;
712 void *i = (void *) fst.mount;
714 AC_DEFINE(HAVE_FSTYPE_MOUNT, 1,
715 [struct file_system_type has mount field])
717 ]) # LC_HAVE_FSTYPE_MOUNT
720 # LC_HAVE_FHANDLE_SYSCALLS
722 # 2.6.39 The open_by_handle_at() and name_to_handle_at() system calls were
723 # added to Linux kernel 2.6.39.
724 # Check if client supports these functions
726 AC_DEFUN([LC_HAVE_FHANDLE_SYSCALLS], [
727 LB_CHECK_CONFIG_IM([FHANDLE],[
728 AC_DEFINE(HAVE_FHANDLE_SYSCALLS, 1,
729 [kernel supports fhandles and related syscalls])
731 ]) # LC_HAVE_FHANDLE_SYSCALLS
734 # LC_HAVE_INODE_OWNER_OR_CAPABLE
736 # 2.6.39 renames is_owner_or_cap to inode_owner_or_capable
738 AC_DEFUN([LC_HAVE_INODE_OWNER_OR_CAPABLE], [
739 LB_CHECK_COMPILE([if 'inode_owner_or_capable' exist],
740 inode_owner_or_capable, [
741 #include <linux/fs.h>
743 inode_owner_or_capable(NULL);
745 AC_DEFINE(HAVE_INODE_OWNER_OR_CAPABLE, 1,
746 [inode_owner_or_capable exist])
748 ]) # LC_HAVE_INODE_OWNER_OR_CAPABLE
751 # LC_DIRTY_INODE_WITH_FLAG
753 # 3.0 dirty_inode() has a flag parameter
754 # see kernel commit aa38572954ade525817fe88c54faebf85e5a61c0
756 AC_DEFUN([LC_DIRTY_INODE_WITH_FLAG], [
757 LB_CHECK_COMPILE([if 'dirty_inode' super_operation takes flag],
758 dirty_inode_super_operation_flag, [
759 #include <linux/fs.h>
762 inode->i_sb->s_op->dirty_inode(NULL, 0);
764 AC_DEFINE(HAVE_DIRTY_INODE_HAS_FLAG, 1,
765 [dirty_inode super_operation takes flag])
767 ]) # LC_DIRTY_INODE_WITH_FLAG
770 # LC_GENERIC_PERMISSION
772 # 2.6.38 generic_permission taken 4 parameters.
773 # in fact, it means rcu-walk aware permission bring.
775 # 3.1 generic_permission taken 2 parameters.
776 # see kernel commit 2830ba7f34ebb27c4e5b8b6ef408cd6d74860890
778 AC_DEFUN([LC_GENERIC_PERMISSION], [
779 LB_CHECK_COMPILE([if 'generic_permission' take 2 arguments],
780 generic_permission_2args, [
781 #include <linux/fs.h>
783 generic_permission(NULL, 0);
785 AC_DEFINE(HAVE_GENERIC_PERMISSION_2ARGS, 1,
786 [generic_permission taken 2 arguments])
788 LB_CHECK_COMPILE([if 'generic_permission' take 4 arguments],
789 generic_permission_4args, [
790 #include <linux/fs.h>
792 generic_permission(NULL, 0, 0, NULL);
794 AC_DEFINE(HAVE_GENERIC_PERMISSION_4ARGS, 1,
795 [generic_permission taken 4 arguments])
798 ]) # LC_GENERIC_PERMISSION
801 # LC_LM_XXX_LOCK_MANAGER_OPS
803 # 3.1 renames lock-manager ops(lock_manager_operations) from fl_xxx to lm_xxx
804 # see kernel commit 8fb47a4fbf858a164e973b8ea8ef5e83e61f2e50
806 AC_DEFUN([LC_LM_XXX_LOCK_MANAGER_OPS], [
807 LB_CHECK_COMPILE([if 'lock-manager' ops renamed to 'lm_xxx'],
808 lock_manager_ops_lm_xxx, [
809 #include <linux/fs.h>
811 struct lock_manager_operations lm_ops;
812 lm_ops.lm_compare_owner = NULL;
814 AC_DEFINE(HAVE_LM_XXX_LOCK_MANAGER_OPS, 1,
815 [lock-manager ops renamed to lm_xxx])
817 ]) # LC_LM_XXX_LOCK_MANAGER_OPS
822 # 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait/
823 # inode_dio_done instead.
824 # see kernel commit bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3
826 AC_DEFUN([LC_INODE_DIO_WAIT], [
827 LB_CHECK_COMPILE([if 'inode->i_alloc_sem' is killed and use inode_dio_wait/done],
829 #include <linux/fs.h>
831 inode_dio_wait((struct inode *)0);
832 inode_dio_done((struct inode *)0);
834 AC_DEFINE(HAVE_INODE_DIO_WAIT, 1,
835 [inode->i_alloc_sem is killed and use inode_dio_wait/done])
837 ]) # LC_INODE_DIO_WAIT
842 # 3.1 adds get_acl method to inode_operations to read ACL from disk.
843 # see kernel commit 4e34e719e457f2e031297175410fc0bd4016a085
845 AC_DEFUN([LC_IOP_GET_ACL], [
846 LB_CHECK_COMPILE([if 'inode_operations' has '.get_acl' member function],
848 #include <linux/fs.h>
850 struct inode_operations iop;
853 AC_DEFINE(HAVE_IOP_GET_ACL, 1,
854 [inode_operations has .get_acl member function])
859 # LC_FILE_LLSEEK_SIZE
861 # 3.1 introduced generic_file_llseek_size()
863 AC_DEFUN([LC_FILE_LLSEEK_SIZE], [
864 LB_CHECK_EXPORT([generic_file_llseek_size], [fs/read_write.c],
865 [AC_DEFINE(HAVE_FILE_LLSEEK_SIZE, 1,
866 [generic_file_llseek_size is exported by the kernel])])
867 ]) # LC_FILE_LLSEEK_SIZE
870 # LC_HAVE_VOID_MAKE_REQUEST_FN
872 # 3.2 request_queue.make_request_fn defined as function returns with void
873 # see kernel commit 5a7bbad27a410350e64a2d7f5ec18fc73836c14f
875 AC_DEFUN([LC_HAVE_VOID_MAKE_REQUEST_FN], [
876 LB_CHECK_COMPILE([if 'request_queue.make_request_fn' returns void but not int],
877 make_request_fn_void, [
878 #include <linux/blkdev.h>
881 make_request_fn *mrf;
882 ret = mrf(NULL, NULL);
884 AC_DEFINE(HAVE_VOID_MAKE_REQUEST_FN, 1,
885 [request_queue.make_request_fn returns void but not int])
887 ]) # LC_HAVE_VOID_MAKE_REQUEST_FN
890 # LC_HAVE_PROTECT_I_NLINK
892 # 3.2 protects inode->i_nlink from direct modification
893 # see kernel commit a78ef704a8dd430225955f0709b22d4a6ba21deb
894 # at the same time adds set_nlink(), so checks set_nlink() for it.
896 AC_DEFUN([LC_HAVE_PROTECT_I_NLINK], [
897 LB_CHECK_COMPILE([if 'inode->i_nlink' is protected from direct modification],
898 inode_i_nlink_protected, [
899 #include <linux/fs.h>
904 AC_DEFINE(HAVE_PROTECT_I_NLINK, 1,
905 [inode->i_nlink is protected from direct modification])
907 ]) # LC_HAVE_PROTECT_I_NLINK
910 # LC_HAVE_MIGRATE_HEADER
912 # 3.3 introduces migrate_mode.h and migratepage has 4 args
914 AC_DEFUN([LC_HAVE_MIGRATE_HEADER], [
915 LB_CHECK_FILE([$LINUX/include/linux/migrate.h], [
916 AC_DEFINE(HAVE_MIGRATE_H, 1,
917 [kernel has include/linux/migrate.h])
919 LB_CHECK_FILE([$LINUX/include/linux/migrate_mode.h], [
920 AC_DEFINE(HAVE_MIGRATE_MODE_H, 1,
921 [kernel has include/linux/migrate_mode.h])
924 ]) # LC_HAVE_MIGRATE_HEADER
927 # LC_MIGRATEPAGE_4ARGS
929 AC_DEFUN([LC_MIGRATEPAGE_4ARGS], [
930 LB_CHECK_COMPILE([if 'address_space_operations.migratepage' has 4 args],
931 address_space_ops_migratepage_4args, [
932 #include <linux/fs.h>
933 #ifdef HAVE_MIGRATE_H
934 #include <linux/migrate.h>
935 #elif defined(HAVE_MIGRATE_MODE_H)
936 #include <linux/migrate_mode.h>
939 struct address_space_operations aops;
940 aops.migratepage(NULL, NULL, NULL, MIGRATE_ASYNC);
942 AC_DEFINE(HAVE_MIGRATEPAGE_4ARGS, 1,
943 [address_space_operations.migratepage has 4 args])
945 ]) # LC_MIGRATEPAGE_4ARGS
948 # LC_SUPEROPS_USE_DENTRY
950 # 3.3 switchs super_operations to use dentry as parameter (but not vfsmount)
951 # see kernel commit 34c80b1d93e6e20ca9dea0baf583a5b5510d92d4
953 AC_DEFUN([LC_SUPEROPS_USE_DENTRY], [
954 tmp_flags="$EXTRA_KCFLAGS"
955 EXTRA_KCFLAGS="-Werror"
956 LB_CHECK_COMPILE([if 'super_operations' use 'dentry' as parameter],
958 #include <linux/fs.h>
959 int show_options(struct seq_file *seq, struct dentry *root) {
963 struct super_operations ops;
964 ops.show_options = show_options;
966 AC_DEFINE(HAVE_SUPEROPS_USE_DENTRY, 1,
967 [super_operations use dentry as parameter])
969 EXTRA_KCFLAGS="$tmp_flags"
970 ]) # LC_SUPEROPS_USE_DENTRY
973 # LC_INODEOPS_USE_UMODE_T
975 # 3.3 switchs inode_operations to use umode_t as parameter (but not int)
976 # see kernel commit 1a67aafb5f72a436ca044293309fa7e6351d6a35
978 AC_DEFUN([LC_INODEOPS_USE_UMODE_T], [
979 tmp_flags="$EXTRA_KCFLAGS"
980 EXTRA_KCFLAGS="-Werror"
981 LB_CHECK_COMPILE([if 'inode_operations' use 'umode_t' as parameter],
983 #include <linux/fs.h>
984 #include <linux/types.h>
985 int my_mknod(struct inode *dir, struct dentry *dchild,
986 umode_t mode, dev_t dev)
991 struct inode_operations ops;
992 ops.mknod = my_mknod;
994 AC_DEFINE(HAVE_INODEOPS_USE_UMODE_T, 1,
995 [inode_operations use umode_t as parameter])
997 EXTRA_KCFLAGS="$tmp_flags"
998 ]) # LC_INODEOPS_USE_UMODE_T
1001 # LC_KMAP_ATOMIC_HAS_1ARG
1003 # 3.4 kmap_atomic removes second argument
1004 # see kernel commit 1ec9c5ddc17aa398f05646abfcbaf315b544e62f
1006 AC_DEFUN([LC_KMAP_ATOMIC_HAS_1ARG], [
1007 LB_CHECK_COMPILE([if 'kmap_atomic' has only 1 argument],
1009 #include <linux/highmem.h>
1013 AC_DEFINE(HAVE_KMAP_ATOMIC_HAS_1ARG, 1,
1014 [have kmap_atomic has only 1 argument])
1016 ]) # LC_KMAP_ATOMIC_HAS_1ARG
1019 # LC_HAVE_D_MAKE_ROOT
1021 # 3.4 converts d_alloc_root to d_make_root
1022 # see kernel commit 32991ab305ace7017c62f8eecbe5eb36dc32e13b
1024 AC_DEFUN([LC_HAVE_D_MAKE_ROOT], [
1025 LB_CHECK_COMPILE([if have 'd_make_root'],
1027 #include <linux/fs.h>
1029 d_make_root((struct inode *)NULL);
1031 AC_DEFINE(HAVE_D_MAKE_ROOT, 1,
1034 ]) # LC_HAVE_D_MAKE_ROOT
1037 # LC_HAVE_CACHE_REGISTER
1039 # 3.4 cache_register/cache_unregister are removed
1040 # see kernel commit 2c5f846747526e2b83c5f1b8e69016be0e2e87c0
1041 # Note, since 2.6.37 cache_register_net/cache_unregister_net
1042 # are defined, but not exported.
1043 # 3.3 cache_register_net/cache_unregister_net are
1044 # exported and replacing cache_register/cache_unregister in 3.4
1046 AC_DEFUN([LC_HAVE_CACHE_REGISTER], [
1047 LB_CHECK_COMPILE([if have 'cache_register'],
1049 #include <linux/sunrpc/cache.h>
1051 cache_register(NULL);
1053 AC_DEFINE(HAVE_CACHE_REGISTER, 1,
1054 [have cache_register])
1056 ]) # LC_HAVE_CACHE_REGISTER
1059 # LC_HAVE_CLEAR_INODE
1061 # 3.5 renames end_writeback() back to clear_inode()...
1062 # see kernel commit dbd5768f87ff6fb0a4fe09c4d7b6c4a24de99430
1064 AC_DEFUN([LC_HAVE_CLEAR_INODE], [
1065 LB_CHECK_COMPILE([if have 'clear_inode'],
1067 #include <linux/fs.h>
1069 clear_inode((struct inode *)NULL);
1071 AC_DEFINE(HAVE_CLEAR_INODE, 1,
1074 ]) # LC_HAVE_CLEAR_INODE
1077 # LC_HAVE_ENCODE_FH_PARENT
1079 # 3.5 encode_fh has parent inode passed in directly
1080 # see kernel commit b0b0382b
1082 AC_DEFUN([LC_HAVE_ENCODE_FH_PARENT], [
1083 tmp_flags="$EXTRA_KCFLAGS"
1084 EXTRA_KCFLAGS="-Werror"
1085 LB_CHECK_COMPILE([if 'encode_fh' have parent inode as parameter],
1086 encode_fh_parent_inode, [
1087 #include <linux/exportfs.h>
1088 #include <linux/fs.h>
1089 #include <linux/types.h>
1090 int ll_encode_fh(struct inode *i, __u32 *a, int *b, struct inode *p)
1095 struct export_operations exp_op;
1096 exp_op.encode_fh = ll_encode_fh;
1098 AC_DEFINE(HAVE_ENCODE_FH_PARENT, 1,
1099 [have parent inode as parameter])
1101 EXTRA_KCFLAGS="$tmp_flags"
1102 ]) # LC_HAVE_ENCODE_FH_PARENT
1105 # LC_FILE_LLSEEK_SIZE_5ARG
1107 # 3.5 has generic_file_llseek_size with 5 args
1109 AC_DEFUN([LC_FILE_LLSEEK_SIZE_5ARG], [
1110 LB_CHECK_COMPILE([if Linux kernel has 'generic_file_llseek_size' with 5 args],
1111 generic_file_llseek_size_5args, [
1112 #include <linux/fs.h>
1114 generic_file_llseek_size(NULL, 0, 0, 0, 0);
1116 AC_DEFINE(HAVE_FILE_LLSEEK_SIZE_5ARGS, 1,
1117 [kernel has generic_file_llseek_size with 5 args])
1119 ]) # LC_FILE_LLSEEK_SIZE_5ARG
1122 # LC_HAVE_DENTRY_D_ALIAS_HLIST
1124 # 3.6 switch i_dentry/d_alias from list to hlist
1126 AC_DEFUN([LC_HAVE_DENTRY_D_ALIAS_HLIST], [
1127 tmp_flags="$EXTRA_KCFLAGS"
1128 EXTRA_KCFLAGS="-Werror"
1129 LB_CHECK_COMPILE([if 'i_dentry/d_alias' uses 'hlist'],
1130 i_dentry_d_alias_hlist, [
1131 #include <linux/fs.h>
1132 #include <linux/list.h>
1135 struct dentry dentry;
1136 struct hlist_head head;
1137 struct hlist_node node;
1138 inode.i_dentry = head;
1139 dentry.d_alias = node;
1141 AC_DEFINE(HAVE_DENTRY_D_ALIAS_HLIST, 1,
1142 [have i_dentry/d_alias uses hlist])
1144 EXTRA_KCFLAGS="$tmp_flags"
1145 ]) # LC_HAVE_DENTRY_D_ALIAS_HLIST
1148 # LC_DENTRY_OPEN_USE_PATH
1150 # 3.6 dentry_open uses struct path as first argument
1151 # see kernel commit 765927b2
1153 AC_DEFUN([LC_DENTRY_OPEN_USE_PATH], [
1154 tmp_flags="$EXTRA_KCFLAGS"
1155 EXTRA_KCFLAGS="-Werror"
1156 LB_CHECK_COMPILE([if 'dentry_open' uses 'struct path' as first argument],
1158 #include <linux/fs.h>
1159 #include <linux/path.h>
1162 dentry_open(&path, 0, NULL);
1164 AC_DEFINE(HAVE_DENTRY_OPEN_USE_PATH, 1,
1165 [dentry_open uses struct path as first argument])
1167 EXTRA_KCFLAGS="$tmp_flags"
1168 ]) # LC_DENTRY_OPEN_USE_PATH
1171 # LC_HAVE_IOP_ATOMIC_OPEN
1173 # 3.6 vfs adds iop->atomic_open
1175 AC_DEFUN([LC_HAVE_IOP_ATOMIC_OPEN], [
1176 LB_CHECK_COMPILE([if 'iop' has 'atomic_open'],
1177 inode_ops_atomic_open, [
1178 #include <linux/fs.h>
1180 struct inode_operations iop;
1181 iop.atomic_open = NULL;
1183 AC_DEFINE(HAVE_IOP_ATOMIC_OPEN, 1,
1184 [have iop atomic_open])
1186 ]) # LC_HAVE_IOP_ATOMIC_OPEN
1189 # LC_HAVE_POSIXACL_USER_NS
1191 # 3.7 posix_acl_{to,from}_xattr take struct user_namespace
1193 AC_DEFUN([LC_HAVE_POSIXACL_USER_NS], [
1194 LB_CHECK_COMPILE([if 'posix_acl_to_xattr' takes 'struct user_namespace'],
1195 posix_acl_to_xattr_user_namespace, [
1196 #include <linux/fs.h>
1197 #include <linux/posix_acl_xattr.h>
1199 posix_acl_to_xattr((struct user_namespace *)NULL, NULL, NULL, 0);
1201 AC_DEFINE(HAVE_POSIXACL_USER_NS, 1,
1202 [posix_acl_to_xattr takes struct user_namespace])
1204 ]) # LC_HAVE_POSIXACL_USER_NS
1207 # LC_HAVE_FILE_F_INODE
1209 # 3.8 struct file has new member f_inode
1211 AC_DEFUN([LC_HAVE_FILE_F_INODE], [
1212 LB_CHECK_COMPILE([if 'struct file' has memeber 'f_inode'],
1214 #include <linux/fs.h>
1216 ((struct file *)0)->f_inode = NULL;
1218 AC_DEFINE(HAVE_FILE_F_INODE, 1,
1219 [struct file has memeber f_inode])
1221 ]) # LC_HAVE_FILE_F_INODE
1224 # LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
1226 AC_DEFUN([LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS], [
1227 LB_CHECK_COMPILE([if 'sunrpc_cache_pipe_upcall' takes 3 args],
1228 sunrpc_cache_pipe_upcall_3args, [
1229 #include <linux/sunrpc/cache.h>
1231 sunrpc_cache_pipe_upcall(NULL, NULL, NULL);
1233 AC_DEFINE(HAVE_SUNRPC_UPCALL_HAS_3ARGS, 1,
1234 [sunrpc_cache_pipe_upcall takes 3 args])
1236 ]) # LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
1239 # LC_HAVE_HLIST_FOR_EACH_3ARG
1241 # 3.9 uses hlist_for_each_entry with 3 args
1242 # b67bfe0d42cac56c512dd5da4b1b347a23f4b70a
1244 AC_DEFUN([LC_HAVE_HLIST_FOR_EACH_3ARG], [
1245 LB_CHECK_COMPILE([if 'hlist_for_each_entry' has 3 args],
1246 hlist_for_each_entry_3args, [
1247 #include <linux/list.h>
1248 #include <linux/fs.h>
1250 struct inode *inode;
1251 struct dentry *dentry;
1252 hlist_for_each_entry(dentry, &inode->i_dentry, d_alias) {
1256 AC_DEFINE(HAVE_HLIST_FOR_EACH_3ARG, 1,
1257 [hlist_for_each_entry has 3 args])
1259 ]) # LC_HAVE_HLIST_FOR_EACH_3ARG
1262 # LC_HAVE_ONLY_PROCFS_SEQ
1264 # 3.10+ only supports procfs seq_files handling
1266 AC_DEFUN([LC_HAVE_ONLY_PROCFS_SEQ], [
1267 LB_CHECK_COMPILE([if procfs only supports using 'seq_files'],
1268 only_procfs_seq_files, [
1269 #include <linux/proc_fs.h>
1271 ((struct proc_dir_entry *)0)->write_proc(NULL, NULL, 0, NULL);
1273 AC_DEFINE(HAVE_ONLY_PROCFS_SEQ, 1,
1274 [only seq_files supported])
1276 ]) # LC_HAVE_ONLY_PROCFS_SEQ
1279 # LC_BLKDEV_RELEASE_RETURN_INT
1281 # 3.10 release for block device doesn't return int
1283 AC_DEFUN([LC_BLKDEV_RELEASE_RETURN_INT], [
1284 LB_CHECK_COMPILE([if 'block_device_operations' release returns 'int'],
1285 block_device_ops_release_return_int, [
1286 #include <linux/blkdev.h>
1288 struct block_device_operations fops;
1289 int i __attribute__ ((unused));
1291 i = fops.release(NULL, 0);
1293 AC_DEFINE(HAVE_BLKDEV_RELEASE_RETURN_INT, 1,
1294 [block device release returns int])
1296 ]) # LC_BLKDEV_RELEASE_RETURN_INT
1299 # LC_INVALIDATE_RANGE
1301 # 3.11 invalidatepage requires the length of the range to invalidate
1303 AC_DEFUN([LC_INVALIDATE_RANGE], [
1304 LB_CHECK_COMPILE([if 'address_space_operations.invalidatepage' requires 3 arguments],
1305 address_space_ops_invalidatepage_3args, [
1306 #include <linux/fs.h>
1308 struct address_space_operations a_ops;
1309 a_ops.invalidatepage(NULL, 0, 0);
1311 AC_DEFINE(HAVE_INVALIDATE_RANGE, 1,
1312 [address_space_operations.invalidatepage needs 3 arguments])
1314 ]) # LC_INVALIDATE_RANGE
1317 # LC_HAVE_DIR_CONTEXT
1319 # 3.11 readdir now takes the new struct dir_context
1321 AC_DEFUN([LC_HAVE_DIR_CONTEXT], [
1322 LB_CHECK_COMPILE([if 'dir_context' exist],
1324 #include <linux/fs.h>
1326 struct dir_context ctx;
1329 AC_DEFINE(HAVE_DIR_CONTEXT, 1,
1330 [dir_context exist])
1332 ]) # LC_HAVE_DIR_CONTEXT
1335 # LC_D_COMPARE_5ARGS
1337 # 3.11 dentry_operations.d_compare() taken 5 arguments.
1339 AC_DEFUN([LC_D_COMPARE_5ARGS], [
1340 LB_CHECK_COMPILE([if 'd_compare' taken 5 arguments],
1342 #include <linux/dcache.h>
1344 ((struct dentry_operations*)0)->d_compare(NULL,NULL,0,NULL,NULL);
1346 AC_DEFINE(HAVE_D_COMPARE_5ARGS, 1,
1347 [d_compare need 5 arguments])
1349 ]) # LC_D_COMPARE_5ARGS
1354 # 3.11 need to access d_count to get dentry reference count
1356 AC_DEFUN([LC_HAVE_DCOUNT], [
1357 LB_CHECK_COMPILE([if 'd_count' exist],
1359 #include <linux/dcache.h>
1364 AC_DEFINE(HAVE_D_COUNT, 1,
1370 # LC_OLDSIZE_TRUNCATE_PAGECACHE
1372 # 3.12 truncate_pagecache without oldsize parameter
1374 AC_DEFUN([LC_OLDSIZE_TRUNCATE_PAGECACHE], [
1375 LB_CHECK_COMPILE([if 'truncate_pagecache' with 'old_size' parameter],
1376 truncate_pagecache_old_size, [
1377 #include <linux/mm.h>
1379 truncate_pagecache(NULL, 0, 0);
1381 AC_DEFINE(HAVE_OLDSIZE_TRUNCATE_PAGECACHE, 1,
1384 ]) # LC_OLDSIZE_TRUNCATE_PAGECACHE
1389 # 3.12 ki_left removed from struct kiocb
1391 AC_DEFUN([LC_KIOCB_KI_LEFT], [
1392 LB_CHECK_COMPILE([if 'struct kiocb' with 'ki_left' member],
1394 #include <linux/aio.h>
1396 ((struct kiocb*)0)->ki_left = 0;
1398 AC_DEFINE(HAVE_KIOCB_KI_LEFT, 1,
1401 ]) # LC_KIOCB_KI_LEFT
1404 # LC_VFS_RENAME_5ARGS
1406 # 3.13 has vfs_renane with 5 args
1408 AC_DEFUN([LC_VFS_RENAME_5ARGS], [
1409 LB_CHECK_COMPILE([if Linux kernel has 'vfs_rename' with 5 args],
1411 #include <linux/fs.h>
1413 vfs_rename(NULL, NULL, NULL, NULL, NULL);
1415 AC_DEFINE(HAVE_VFS_RENAME_5ARGS, 1,
1416 [kernel has vfs_rename with 5 args])
1418 ]) # LC_VFS_RENAME_5ARGS
1421 # LC_VFS_UNLINK_3ARGS
1423 # 3.13 has vfs_renane with 3 args
1425 AC_DEFUN([LC_VFS_UNLINK_3ARGS], [
1426 LB_CHECK_COMPILE([if Linux kernel has 'vfs_unlink' with 3 args],
1428 #include <linux/fs.h>
1430 vfs_unlink(NULL, NULL, NULL);
1432 AC_DEFINE(HAVE_VFS_UNLINK_3ARGS, 1,
1433 [kernel has vfs_unlink with 3 args])
1435 ]) # LC_VFS_UNLINK_3ARGS
1440 # Lustre linux kernel checks
1442 AC_DEFUN([LC_PROG_LINUX], [
1443 AC_MSG_NOTICE([Lustre kernel checks
1444 ==============================================================================])
1448 LC_CONFIG_HEALTH_CHECK_WRITE
1449 LC_CONFIG_LRU_RESIZE
1450 LC_LLITE_LLOOP_MODULE
1452 LC_GLIBC_SUPPORT_FHANDLES
1458 LC_BLK_QUEUE_MAX_SEGMENTS
1461 LC_HAVE_DQUOT_FS_DISK_QUOTA
1462 LC_HAVE_DQUOT_SUSPEND
1466 LC_EXPORT_SIMPLE_SETATTR
1467 LC_EXPORT_TRUNCATE_COMPLETE_PAGE
1471 LC_SBOPS_EVICT_INODE
1477 LC_BLKDEV_GET_BY_DEV
1478 LC_GENERIC_PERMISSION
1485 LC_REQUEST_QUEUE_UNPLUG_FN
1486 LC_HAVE_FHANDLE_SYSCALLS
1487 LC_HAVE_FSTYPE_MOUNT
1489 LC_HAVE_INODE_OWNER_OR_CAPABLE
1492 LC_DIRTY_INODE_WITH_FLAG
1495 LC_LM_XXX_LOCK_MANAGER_OPS
1499 LC_INODE_PERMISION_2ARGS
1502 LC_HAVE_VOID_MAKE_REQUEST_FN
1503 LC_HAVE_PROTECT_I_NLINK
1506 LC_HAVE_MIGRATE_HEADER
1507 LC_MIGRATEPAGE_4ARGS
1508 LC_SUPEROPS_USE_DENTRY
1509 LC_INODEOPS_USE_UMODE_T
1510 LC_HAVE_CACHE_REGISTER
1514 LC_KMAP_ATOMIC_HAS_1ARG
1518 LC_HAVE_ENCODE_FH_PARENT
1519 LC_FILE_LLSEEK_SIZE_5ARG
1522 LC_HAVE_DENTRY_D_ALIAS_HLIST
1523 LC_DENTRY_OPEN_USE_PATH
1524 LC_HAVE_IOP_ATOMIC_OPEN
1527 LC_HAVE_POSIXACL_USER_NS
1530 LC_HAVE_FILE_F_INODE
1531 LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
1534 LC_HAVE_HLIST_FOR_EACH_3ARG
1537 LC_HAVE_ONLY_PROCFS_SEQ
1538 LC_BLKDEV_RELEASE_RETURN_INT
1547 LC_OLDSIZE_TRUNCATE_PAGECACHE
1555 AS_IF([test "x$enable_server" != xno], [
1556 LC_FUNC_DEV_SET_RDONLY
1566 # Check whether to build the client side of Lustre
1568 AC_DEFUN([LC_CONFIG_CLIENT], [
1569 AC_MSG_CHECKING([whether to build Lustre client support])
1570 AC_ARG_ENABLE([client],
1571 AC_HELP_STRING([--disable-client],
1572 [disable Lustre client support]),
1573 [], [enable_client="yes"])
1574 AC_MSG_RESULT([$enable_client])
1575 ]) # LC_CONFIG_CLIENT
1580 # whether to enable quota support global control
1582 AC_DEFUN([LC_CONFIG_QUOTA], [
1583 AC_MSG_CHECKING([whether to enable quota support global control])
1584 AC_ARG_ENABLE([quota],
1585 AC_HELP_STRING([--enable-quota],
1586 [enable quota support]),
1587 [], [enable_quota="yes"])
1588 AS_IF([test "x$enable_quota" = xyes],
1589 [AC_MSG_RESULT([yes])],
1590 [AC_MSG_RESULT([no])])
1591 ]) # LC_CONFIG_QUOTA
1596 AC_DEFUN([LC_QUOTA], [
1600 AS_IF([test "x$enable_quota" != xno -a "x$enable_utils" != xno], [
1601 AC_CHECK_HEADER([sys/quota.h],
1602 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1,
1603 [Define to 1 if you have <sys/quota.h>.])],
1604 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
1611 # whether to enable split support
1613 AC_DEFUN([LC_CONFIG_SPLIT], [
1614 AC_MSG_CHECKING([whether to enable split support])
1615 AC_ARG_ENABLE([split],
1616 AC_HELP_STRING([--enable-split],
1617 [enable split support]),
1618 [], [enable_split='no'])
1619 AC_MSG_RESULT([$enable_split])
1620 AS_IF([test "x$enable_split" != xno],
1621 [AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])])
1622 ]) # LC_CONFIG_SPLIT
1625 # LC_CONFIG_NODEMAP_PROC_DEBUG
1627 # enable nodemap proc file debugging
1629 AC_DEFUN([LC_NODEMAP_PROC_DEBUG], [
1630 AC_MSG_CHECKING([whether to enable nodemap proc debug])
1631 AC_ARG_ENABLE([nodemap_proc_debug],
1632 AC_HELP_STRING([--enable-nodemap-proc-debug],
1633 [enable nodemap proc debug]),
1634 [], [enable_nodemap_proc_debug="no"])
1635 AC_MSG_RESULT([$enable_nodemap_proc_debug])
1636 AS_IF([test "x$enable_nodemap_proc_debug" != xno],
1637 [AC_DEFINE(NODEMAP_PROC_DEBUG, 1,
1638 [enable nodemap proc debug support])])
1639 ]) # LC_NODEMAP_PROC_DEBUG
1642 # LC_LLITE_LLOOP_MODULE
1644 # lloop_llite.ko does not currently work with page sizes
1647 AC_DEFUN([LC_LLITE_LLOOP_MODULE], [
1648 LB_CHECK_COMPILE([whether to enable 'llite_lloop' module],
1649 enable_llite_lloop_module, [
1650 #include <asm/page.h>
1652 #if PAGE_SIZE >= 65536
1653 #error "PAGE_SIZE >= 65536"
1656 [enable_llite_lloop_module="yes"],
1657 [enable_llite_lloop_module="no"])
1658 ]) # LC_LLITE_LLOOP_MODULE
1663 # configure support for optional OSD implementation
1665 AC_DEFUN([LC_OSD_ADDON], [
1666 AC_MSG_CHECKING([whether to use OSD addon])
1668 AC_HELP_STRING([--with-osd=path],
1669 [set path to optional osd]),
1676 OSDADDON="$with_osd"
1683 AS_IF([test $ENABLEOSDADDON -eq 0], [
1687 OSDMODNAME=$(basename $OSDADDON)
1688 AS_IF([test -e $LUSTRE/$OSDMODNAME], [
1689 AC_MSG_RESULT([can't link])
1691 ], [ln -s $OSDADDON $LUSTRE/$OSDMODNAME], [
1692 AC_MSG_RESULT([$OSDMODNAME])
1693 OSDADDON="subdir-m += $OSDMODNAME"
1695 AC_MSG_RESULT([can't link])
1705 # other configure checks
1707 AC_DEFUN([LC_CONFIGURE], [
1708 AC_MSG_NOTICE([Lustre core checks
1709 ==============================================================================])
1711 LC_CONFIG_OBD_BUFFER_SIZE
1713 AS_IF([test $target_cpu == "i686" -o $target_cpu == "x86_64"],
1714 [CFLAGS="$CFLAGS -Werror"])
1716 # maximum MDS thread count
1719 # libcfs/include/libcfs/posix/libcfs.h
1720 # lustre/utils/llverdev.c
1721 AC_CHECK_HEADERS([sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
1723 # libcfs/include/libcfs/linux/linux-prim.h, ...
1724 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
1726 # libcfs/libcfs/user-tcpip.c
1727 AC_CHECK_HEADERS([netinet/in.h])
1728 AC_CHECK_FUNCS([inet_ntoa])
1730 # libcfs/include/libcfs/linux/linux-prim.h
1731 AC_CHECK_HEADERS([linux/random.h], [], [],
1732 [#ifdef HAVE_LINUX_TYPES_H
1733 #include <linux/types.h>
1738 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
1740 # check for -lz support
1742 AC_CHECK_LIB([z], [adler32],
1743 [AC_CHECK_HEADERS([zlib.h], [
1745 AC_DEFINE([HAVE_ADLER], 1,
1746 [support alder32 checksum type])
1750 No zlib-devel package found, unable to use adler32 checksum
1755 No zlib package found, unable to use adler32 checksum
1761 AC_CHECK_LIB([selinux], [is_selinux_enabled],
1762 [AC_CHECK_HEADERS([selinux.h],
1763 [SELINUX="-lselinux"
1764 AC_DEFINE([HAVE_SELINUX], 1,
1765 [support for selinux ])],
1768 No selinux-devel package found, unable to build selinux enabled tools
1773 No selinux package found, unable to build selinux enabled tools
1779 AC_MSG_CHECKING([whether to report minimum OST free space])
1780 AC_ARG_ENABLE([mindf],
1781 AC_HELP_STRING([--enable-mindf],
1782 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
1783 [], [enable_mindf="no"])
1784 AC_MSG_RESULT([$enable_mindf])
1785 AS_IF([test "$enable_mindf" = "yes"],
1786 [AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])])
1788 AC_MSG_CHECKING([whether to randomly failing memory alloc])
1789 AC_ARG_ENABLE([fail_alloc],
1790 AC_HELP_STRING([--disable-fail-alloc],
1791 [disable randomly alloc failure]),
1792 [], [enable_fail_alloc="yes"])
1793 AC_MSG_RESULT([$enable_fail_alloc])
1794 AS_IF([test "x$enable_fail_alloc" != xno],
1795 [AC_DEFINE([RANDOM_FAIL_ALLOC], 1,
1796 [enable randomly alloc failure])])
1798 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
1799 AC_ARG_ENABLE([invariants],
1800 AC_HELP_STRING([--enable-invariants],
1801 [enable invariant checking (cpu intensive)]),
1802 [], [enable_invariants="no"])
1803 AC_MSG_RESULT([$enable_invariants])
1804 AS_IF([test "x$enable_invariants" = xyes],
1805 [AC_DEFINE([CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK], 1,
1806 [enable invariant checking])])
1808 AC_MSG_CHECKING([whether to track references with lu_ref])
1809 AC_ARG_ENABLE([lu_ref],
1810 AC_HELP_STRING([--enable-lu_ref],
1811 [enable lu_ref reference tracking code]),
1812 [], [enable_lu_ref="no"])
1813 AC_MSG_RESULT([$enable_lu_ref])
1814 AS_IF([test "x$enable_lu_ref" = xyes],
1815 [AC_DEFINE([USE_LU_REF], 1,
1816 [enable lu_ref reference tracking code])])
1818 AC_MSG_CHECKING([whether to enable page state tracking])
1819 AC_ARG_ENABLE([pgstate-track],
1820 AC_HELP_STRING([--enable-pgstate-track],
1821 [enable page state tracking]),
1822 [], [enable_pgstat_track="no"])
1823 AC_MSG_RESULT([$enable_pgstat_track])
1824 AS_IF([test "x$enable_pgstat_track" = xyes],
1825 [AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
1826 [enable page state tracking code])])
1832 # AM_CONDITIONALS for lustre
1834 AC_DEFUN([LC_CONDITIONALS], [
1835 AM_CONDITIONAL(LIBLUSTRE, false)
1836 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
1837 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
1838 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
1839 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
1840 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
1841 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
1842 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
1843 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
1844 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
1845 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
1846 AM_CONDITIONAL(LLITE_LLOOP, test x$enable_llite_lloop_module = xyes)
1847 ]) # LC_CONDITIONALS
1852 # files that should be generated with AC_OUTPUT
1854 AC_DEFUN([LC_CONFIG_FILES],
1858 lustre/autoconf/Makefile
1859 lustre/conf/Makefile
1860 lustre/contrib/Makefile
1862 lustre/include/Makefile
1863 lustre/include/lustre_ver.h
1864 lustre/include/linux/Makefile
1865 lustre/include/darwin/Makefile
1866 lustre/include/lustre/Makefile
1867 lustre/kernel_patches/targets/2.6-rhel6.target
1868 lustre/kernel_patches/targets/2.6-rhel5.target
1869 lustre/kernel_patches/targets/2.6-sles11.target
1870 lustre/kernel_patches/targets/3.0-sles11.target
1871 lustre/kernel_patches/targets/3.0-sles11sp3.target
1872 lustre/kernel_patches/targets/2.6-fc11.target
1873 lustre/kernel_patches/targets/2.6-fc12.target
1874 lustre/kernel_patches/targets/2.6-fc15.target
1875 lustre/kernel_patches/targets/3.x-fc18.target
1876 lustre/ldlm/Makefile
1878 lustre/fid/autoMakefile
1879 lustre/llite/Makefile
1880 lustre/llite/autoMakefile
1881 lustre/lclient/Makefile
1883 lustre/lov/autoMakefile
1885 lustre/mdc/autoMakefile
1887 lustre/lmv/autoMakefile
1888 lustre/lfsck/Makefile
1889 lustre/lfsck/autoMakefile
1891 lustre/mdt/autoMakefile
1892 lustre/nodemap/Makefile
1893 lustre/nodemap/autoMakefile
1895 lustre/mdd/autoMakefile
1897 lustre/fld/autoMakefile
1898 lustre/obdclass/Makefile
1899 lustre/obdclass/autoMakefile
1900 lustre/obdclass/linux/Makefile
1901 lustre/obdecho/Makefile
1902 lustre/obdecho/autoMakefile
1904 lustre/ofd/autoMakefile
1906 lustre/osc/autoMakefile
1908 lustre/ost/autoMakefile
1909 lustre/osd-ldiskfs/Makefile
1910 lustre/osd-ldiskfs/autoMakefile
1911 lustre/osd-zfs/Makefile
1912 lustre/osd-zfs/autoMakefile
1914 lustre/mgc/autoMakefile
1916 lustre/mgs/autoMakefile
1917 lustre/target/Makefile
1918 lustre/ptlrpc/Makefile
1919 lustre/ptlrpc/autoMakefile
1920 lustre/ptlrpc/gss/Makefile
1921 lustre/ptlrpc/gss/autoMakefile
1922 lustre/quota/Makefile
1923 lustre/quota/autoMakefile
1924 lustre/scripts/Makefile
1925 lustre/tests/Makefile
1926 lustre/tests/mpi/Makefile
1927 lustre/utils/Makefile
1928 lustre/utils/gss/Makefile
1930 lustre/osp/autoMakefile
1932 lustre/lod/autoMakefile
1933 lustre/obdclass/darwin/Makefile
1935 ]) # LC_CONFIG_FILES