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
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 the stack size is at least 8k in Lustre server (all kernels)
94 AC_DEFUN([LC_STACK_SIZE], [
95 LB_CHECK_COMPILE([if stack size is at least 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
218 # LC_CONFIG_RMTCLIENT
221 dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
223 AC_DEFUN([LC_CONFIG_RMTCLIENT], [
224 LB_CHECK_CONFIG_IM([CRYPTO_AES], [],
227 Lustre remote client require that CONFIG_CRYPTO_AES is enabled in your kernel.
229 ]) # LC_CONFIG_RMTCLIENT
232 # LC_CONFIG_GSS_KEYRING
234 # default 'auto', tests for dependencies, if found, enables;
235 # only called if gss is enabled
237 AC_DEFUN([LC_CONFIG_GSS_KEYRING], [
238 AC_MSG_CHECKING([whether to enable gss keyring backend])
239 AC_ARG_ENABLE([gss_keyring],
240 [AC_HELP_STRING([--disable-gss-keyring],
241 [disable gss keyring backend])],
242 [], [enable_gss_keyring="auto"])
243 AC_MSG_RESULT([$enable_gss_keyring])
244 AS_IF([test "x$enable_gss_keyring" != xno], [
245 LB_CHECK_CONFIG_IM([KEYS], [], [
246 gss_keyring_conf_test="fail"
249 GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.
252 AC_CHECK_LIB([keyutils], [keyctl_search], [], [
253 gss_keyring_conf_test="fail"
256 libkeyutils is not found, which is required by gss keyring backend
259 AS_IF([test "x$gss_keyring_conf_test" != xfail], [
260 AC_DEFINE([HAVE_GSS_KEYRING], [1],
261 [Define this if you enable gss keyring backend])
262 enable_gss_keyring="yes"
264 AS_IF([test "x$enable_gss_keyring" = xyes], [
267 Cannot enable gss_keyring. See above for details.
272 Cannot enable gss keyring. See above for details.
277 ]) # LC_CONFIG_GSS_KEYRING
280 # LC_HAVE_CRED_TGCRED
282 # rhel7 struct cred has no member tgcred
284 AC_DEFUN([LC_HAVE_CRED_TGCRED], [
285 LB_CHECK_COMPILE([if 'struct cred' has member 'tgcred'],
287 #include <linux/cred.h>
289 ((struct cred *)0)->tgcred = NULL;
291 AC_DEFINE(HAVE_CRED_TGCRED, 1,
292 [struct cred has member tgcred])
294 ]) # LC_HAVE_CRED_TGCRED
297 # LC_KEY_TYPE_INSTANTIATE_2ARGS
299 # rhel7 key_type->instantiate takes 2 args (struct key, struct key_preparsed_payload)
301 AC_DEFUN([LC_KEY_TYPE_INSTANTIATE_2ARGS], [
302 LB_CHECK_COMPILE([if 'key_type->instantiate' has two args],
303 key_type_instantiate_2args, [
304 #include <linux/key-type.h>
306 ((struct key_type *)0)->instantiate(0, NULL);
308 AC_DEFINE(HAVE_KEY_TYPE_INSTANTIATE_2ARGS, 1,
309 [key_type->instantiate has two args])
311 ]) # LC_KEY_TYPE_INSTANTIATE_2ARGS
316 AC_DEFUN([LC_CONFIG_SUNRPC], [
317 LB_CHECK_CONFIG_IM([SUNRPC], [], [
318 AS_IF([test "x$sunrpc_required" = xyes], [
321 kernel SUNRPC support is required by using GSS.
324 ]) # LC_CONFIG_SUNRPC
327 # LC_CONFIG_GSS (default 'auto' (tests for dependencies, if found, enables))
329 # Build gss and related tools of Lustre. Currently both kernel and user space
330 # parts are depend on linux platform.
332 AC_DEFUN([LC_CONFIG_GSS], [
333 AC_MSG_CHECKING([whether to enable gss/krb5 support])
335 [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
336 [], [enable_gss="auto"])
337 AC_MSG_RESULT([$enable_gss])
339 AS_IF([test "x$enable_gss" != xno], [
340 LC_CONFIG_GSS_KEYRING
342 LC_KEY_TYPE_INSTANTIATE_2ARGS
343 sunrpc_required=$enable_gss
347 LB_CHECK_CONFIG_IM([CRYPTO_MD5], [],
348 [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
349 LB_CHECK_CONFIG_IM([CRYPTO_SHA1], [],
350 [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
351 LB_CHECK_CONFIG_IM([CRYPTO_SHA256], [],
352 [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
353 LB_CHECK_CONFIG_IM([CRYPTO_SHA512], [],
354 [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
356 require_krb5=$enable_gss
360 AS_IF([test -n "$KRBDIR"], [
361 gss_conf_test="success"
363 AC_MSG_WARN([not found!])
364 gss_conf_test="failure"
367 AS_IF([test "x$gss_conf_test" = xsuccess], [
368 AC_DEFINE([HAVE_GSS], [1], [Define this is if you enable gss])
377 # LC_INODE_PERMISION_2ARGS
379 # up to v2.6.27 had a 3 arg version (inode, mask, nameidata)
380 # v2.6.27->v2.6.37 had a 2 arg version (inode, mask)
381 # v2.6.37->v3.0 had a 3 arg version (inode, mask, nameidata)
382 # v3.1 onward have a 2 arg version (inode, mask)
384 AC_DEFUN([LC_INODE_PERMISION_2ARGS], [
385 LB_CHECK_COMPILE([if 'inode_operations->permission' has two args],
386 inode_ops_permission_2args, [
387 #include <linux/fs.h>
389 struct inode *inode __attribute__ ((unused));
392 inode->i_op->permission(NULL, 0);
394 AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
395 [inode_operations->permission has two args])
397 ]) # LC_INODE_PERMISION_2ARGS
400 # LC_BLK_QUEUE_MAX_SEGMENTS
402 # 2.6.32 replaces 2 functions blk_queue_max_phys_segments and blk_queue_max_hw_segments by blk_queue_max_segments
404 AC_DEFUN([LC_BLK_QUEUE_MAX_SEGMENTS], [
405 LB_CHECK_COMPILE([if 'blk_queue_max_segments' is defined],
406 blk_queue_max_segments, [
407 #include <linux/blkdev.h>
409 blk_queue_max_segments(NULL, 0);
411 AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
412 [blk_queue_max_segments is defined])
414 ]) # LC_BLK_QUEUE_MAX_SEGMENTS
417 # LC_HAVE_DQUOT_FS_DISK_QUOTA
419 # 2.6.34 has quotactl_ops->[sg]et_dqblk that take struct fs_disk_quota
421 AC_DEFUN([LC_HAVE_DQUOT_FS_DISK_QUOTA], [
422 tmp_flags="$EXTRA_KCFLAGS"
423 EXTRA_KCFLAGS="-Werror"
424 LB_CHECK_COMPILE([if 'quotactl_ops.set_dqblk' takes struct fs_disk_quota],
426 #include <linux/fs.h>
427 #include <linux/quota.h>
429 ((struct quotactl_ops *)0)->set_dqblk(NULL, 0, 0, (struct fs_disk_quota*)0);
431 AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1,
432 [quotactl_ops.set_dqblk takes struct fs_disk_quota])
434 LB_CHECK_COMPILE([if 'quotactl_ops.set_dqblk' takes struct kqid & fs_disk_quota],
435 kqid_fs_disk_quota, [
436 #include <linux/fs.h>
437 #include <linux/quota.h>
439 ((struct quotactl_ops *)0)->set_dqblk((struct super_block*)0, *((struct kqid*)0), (struct fs_disk_quota*)0);
441 AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1,
442 [quotactl_ops.set_dqblk takes struct fs_disk_quota])
443 AC_DEFINE(HAVE_DQUOT_KQID, 1,
444 [quotactl_ops.set_dqblk takes struct kqid])
447 EXTRA_KCFLAGS="$tmp_flags"
448 ]) # LC_HAVE_DQUOT_FS_DISK_QUOTA
451 # LC_HAVE_DQUOT_SUSPEND
453 # 2.6.34 has renamed dquot options to dquot_*, check for dquot_suspend
455 AC_DEFUN([LC_HAVE_DQUOT_SUSPEND], [
456 LB_CHECK_COMPILE([if 'dquot_suspend' is defined],
458 #include <linux/quotaops.h>
460 dquot_suspend(NULL, -1);
462 AC_DEFINE(HAVE_DQUOT_SUSPEND, 1, [dquot_suspend is defined])
464 ]) # LC_HAVE_DQUOT_SUSPEND
469 # Check if kernel has been patched for 64-bit quota limits support.
470 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
471 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
472 # that in the absence of quotaio_v1.h in the kernel headers.
474 AC_DEFUN([LC_QUOTA64], [
475 tmp_flags="$EXTRA_KCFLAGS"
476 EXTRA_KCFLAGS="-I$LINUX/fs"
477 LB_CHECK_COMPILE([if kernel has 64-bit quota limits support],
479 #include <linux/kernel.h>
480 #include <linux/fs.h>
481 #if defined(HAVE_FS_QUOTA_QUOTAIO_H)
482 #include <quota/quotaio_v2.h>
483 struct v2r1_disk_dqblk dqblk_r1;
485 #include <linux/quota.h>
486 int ver = QFMT_VFS_V1;
489 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
491 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],
492 [AC_MSG_ERROR([You have got no 64-bit kernel quota support.])])
494 EXTRA_KCFLAGS=$tmp_flags
498 # LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE
500 # 2.6.34 adds __add_wait_queue_exclusive
502 AC_DEFUN([LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE], [
503 LB_CHECK_COMPILE([if '__add_wait_queue_exclusive' exists],
504 __add_wait_queue_exclusive, [
505 #include <linux/wait.h>
507 wait_queue_head_t queue;
509 __add_wait_queue_exclusive(&queue, &wait);
511 AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1,
512 [__add_wait_queue_exclusive exists])
514 ]) # LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE
517 # LC_FS_STRUCT_RWLOCK
519 # 2.6.36 fs_struct.lock use spinlock instead of rwlock.
521 AC_DEFUN([LC_FS_STRUCT_RWLOCK], [
522 LB_CHECK_COMPILE([if 'fs_struct.lock' use rwlock],
524 #include <asm/atomic.h>
525 #include <linux/spinlock.h>
526 #include <linux/fs_struct.h>
528 ((struct fs_struct *)0)->lock = (rwlock_t){ 0 };
530 AC_DEFINE(HAVE_FS_STRUCT_RWLOCK, 1, [fs_struct.lock use rwlock])
532 ]) # LC_FS_STRUCT_RWLOCK
535 # LC_SBOPS_EVICT_INODE
537 # 2.6.36 super_operations add evict_inode method. it hybird of
538 # delete_inode & clear_inode.
540 AC_DEFUN([LC_SBOPS_EVICT_INODE], [
541 LB_CHECK_COMPILE([if 'super_operations.evict_inode' exist],
542 super_ops_evict_inode, [
543 #include <linux/fs.h>
545 ((struct super_operations *)0)->evict_inode(NULL);
547 AC_DEFINE(HAVE_SBOPS_EVICT_INODE, 1,
548 [super_operations.evict_inode() is exist in kernel])
550 ]) # LC_SBOPS_EVICT_INODE
555 # 2.6.35 file_operations.fsync taken 2 arguments.
556 # 3.0.0 file_operations.fsync takes 4 arguments.
558 AC_DEFUN([LC_FILE_FSYNC], [
559 LB_CHECK_COMPILE([if 'file_operations.fsync' takes 4 arguments],
560 file_ops_fsync_4args, [
561 #include <linux/fs.h>
563 ((struct file_operations *)0)->fsync(NULL, 0, 0, 0);
565 AC_DEFINE(HAVE_FILE_FSYNC_4ARGS, 1,
566 [file_operations.fsync takes 4 arguments])
568 LB_CHECK_COMPILE([if 'file_operations.fsync' takes 2 arguments],
569 file_ops_fsync_2args, [
570 #include <linux/fs.h>
572 ((struct file_operations *)0)->fsync(NULL, 0);
574 AC_DEFINE(HAVE_FILE_FSYNC_2ARGS, 1,
575 [file_operations.fsync takes 2 arguments])
583 # 2.6.37 remove kernel_locked
585 AC_DEFUN([LC_KERNEL_LOCKED], [
586 LB_CHECK_COMPILE([if 'kernel_locked' is defined],
588 #include <linux/smp_lock.h>
592 AC_DEFINE(HAVE_KERNEL_LOCKED, 1, [kernel_locked is defined])
594 ]) # LC_KERNEL_LOCKED
599 # 2.6.38 dentry_operations.d_compare() taken 7 arguments.
601 AC_DEFUN([LC_D_COMPARE_7ARGS], [
602 LB_CHECK_COMPILE([if 'dentry_operations.d_compare()' taken 7 arguments],
603 dentry_ops_d_compare_7arg, [
604 #include <linux/dcache.h>
606 ((struct dentry_operations*)0)->d_compare(NULL,NULL,NULL,NULL,0,NULL,NULL);
608 AC_DEFINE(HAVE_D_COMPARE_7ARGS, 1, [d_compare need 7 arguments])
610 ]) # LC_D_COMPARE_7ARGS
615 # 2.6.38 dentry_operations.d_delete() defined 'const' for 1st parameter.
617 AC_DEFUN([LC_D_DELETE_CONST], [
618 tmp_flags="$EXTRA_KCFLAGS"
619 EXTRA_KCFLAGS="-Werror"
620 LB_CHECK_COMPILE([if 'dentry_operations.d_delete()' has const declare on first parameter],
621 dentry_ops_d_delete_1st_const, [
622 #include <linux/dcache.h>
624 const struct dentry *d = NULL;
625 ((struct dentry_operations*)0)->d_delete(d);
627 AC_DEFINE(HAVE_D_DELETE_CONST, const,
628 [d_delete first parameter declared const])
630 AC_DEFINE(HAVE_D_DELETE_CONST, [],
631 [d_delete first parameter declared is not const])
633 EXTRA_KCFLAGS="$tmp_flags"
634 ]) # LC_D_DELETE_CONST
639 # 2.6.38 dcache_lock removed. rcu-walk committed.
641 AC_DEFUN([LC_DCACHE_LOCK], [
642 LB_CHECK_COMPILE([if 'dcache_lock' is exist],
644 #include <linux/dcache.h>
646 spin_lock(&dcache_lock);
648 AC_DEFINE(HAVE_DCACHE_LOCK, 1,
649 [dcache_lock is exist])
656 # 2.6.38 inode.i_rcu added.
658 AC_DEFUN([LC_INODE_I_RCU], [
659 LB_CHECK_COMPILE([if 'inode.i_rcu' exists],
661 #include <linux/fs.h>
664 struct rcu_head rcu = {};
667 AC_DEFINE(HAVE_INODE_I_RCU, 1,
668 [inode.i_rcu exists])
673 # LC_BLKDEV_GET_BY_DEV
675 # 2.6.38 export blkdev_get_by_dev
677 AC_DEFUN([LC_BLKDEV_GET_BY_DEV], [
678 LB_CHECK_EXPORT([blkdev_get_by_dev], [fs/block_dev.c],
679 [AC_DEFINE(HAVE_BLKDEV_GET_BY_DEV, 1,
680 [blkdev_get_by_dev is exported by the kernel])])
681 ]) # LC_BLKDEV_GET_BY_DEV
684 # LC_EXPORT_SIMPLE_SETATTR
686 # 2.6.38 export simple_setattr
688 AC_DEFUN([LC_EXPORT_SIMPLE_SETATTR], [
689 LB_CHECK_EXPORT([simple_setattr], [fs/libfs.c],
690 [AC_DEFINE(HAVE_SIMPLE_SETATTR, 1,
691 [simple_setattr is exported by the kernel])])
692 ]) # LC_EXPORT_SIMPLE_SETATTR
697 # truncate callback removed since 2.6.39
699 AC_DEFUN([LC_IOP_TRUNCATE], [
700 LB_CHECK_COMPILE([if 'inode_operations' has '.truncate' member function],
701 inode_ops_truncate, [
702 #include <linux/fs.h>
704 ((struct inode_operations *)0)->truncate(NULL);
706 AC_DEFINE(HAVE_INODEOPS_TRUNCATE, 1,
707 [inode_operations has .truncate member function])
712 # LC_REQUEST_QUEUE_UNPLUG_FN
714 # 2.6.39 remove unplug_fn from request_queue.
716 AC_DEFUN([LC_REQUEST_QUEUE_UNPLUG_FN], [
717 LB_CHECK_COMPILE([if 'request_queue' has 'unplug_fn' field],
718 request_queue_unplug_fn, [
719 #include <linux/blkdev.h>
721 do {} while(sizeof(((struct request_queue *)0)->unplug_fn));
723 AC_DEFINE(HAVE_REQUEST_QUEUE_UNPLUG_FN, 1,
724 [request_queue has unplug_fn field])
726 ]) # LC_REQUEST_QUEUE_UNPLUG_FN
729 # LC_HAVE_FSTYPE_MOUNT
731 # 2.6.39 replace get_sb with mount in struct file_system_type
733 AC_DEFUN([LC_HAVE_FSTYPE_MOUNT], [
734 LB_CHECK_COMPILE([if 'file_system_type' has 'mount' field],
735 file_system_type_mount, [
736 #include <linux/fs.h>
738 struct file_system_type fst;
739 void *i = (void *) fst.mount;
741 AC_DEFINE(HAVE_FSTYPE_MOUNT, 1,
742 [struct file_system_type has mount field])
744 ]) # LC_HAVE_FSTYPE_MOUNT
747 # LC_HAVE_FHANDLE_SYSCALLS
749 # 2.6.39 The open_by_handle_at() and name_to_handle_at() system calls were
750 # added to Linux kernel 2.6.39.
751 # Check if client supports these functions
753 AC_DEFUN([LC_HAVE_FHANDLE_SYSCALLS], [
754 LB_CHECK_CONFIG_IM([FHANDLE],[
755 AC_DEFINE(HAVE_FHANDLE_SYSCALLS, 1,
756 [kernel supports fhandles and related syscalls])
758 ]) # LC_HAVE_FHANDLE_SYSCALLS
761 # LC_HAVE_INODE_OWNER_OR_CAPABLE
763 # 2.6.39 renames is_owner_or_cap to inode_owner_or_capable
765 AC_DEFUN([LC_HAVE_INODE_OWNER_OR_CAPABLE], [
766 LB_CHECK_COMPILE([if 'inode_owner_or_capable' exist],
767 inode_owner_or_capable, [
768 #include <linux/fs.h>
770 inode_owner_or_capable(NULL);
772 AC_DEFINE(HAVE_INODE_OWNER_OR_CAPABLE, 1,
773 [inode_owner_or_capable exist])
775 ]) # LC_HAVE_INODE_OWNER_OR_CAPABLE
778 # LC_DIRTY_INODE_WITH_FLAG
780 # 3.0 dirty_inode() has a flag parameter
781 # see kernel commit aa38572954ade525817fe88c54faebf85e5a61c0
783 AC_DEFUN([LC_DIRTY_INODE_WITH_FLAG], [
784 LB_CHECK_COMPILE([if 'dirty_inode' super_operation takes flag],
785 dirty_inode_super_operation_flag, [
786 #include <linux/fs.h>
789 inode->i_sb->s_op->dirty_inode(NULL, 0);
791 AC_DEFINE(HAVE_DIRTY_INODE_HAS_FLAG, 1,
792 [dirty_inode super_operation takes flag])
794 ]) # LC_DIRTY_INODE_WITH_FLAG
797 # LC_GENERIC_PERMISSION
799 # 2.6.38 generic_permission taken 4 parameters.
800 # in fact, it means rcu-walk aware permission bring.
802 # 3.1 generic_permission taken 2 parameters.
803 # see kernel commit 2830ba7f34ebb27c4e5b8b6ef408cd6d74860890
805 AC_DEFUN([LC_GENERIC_PERMISSION], [
806 LB_CHECK_COMPILE([if 'generic_permission' take 2 arguments],
807 generic_permission_2args, [
808 #include <linux/fs.h>
810 generic_permission(NULL, 0);
812 AC_DEFINE(HAVE_GENERIC_PERMISSION_2ARGS, 1,
813 [generic_permission taken 2 arguments])
815 LB_CHECK_COMPILE([if 'generic_permission' take 4 arguments],
816 generic_permission_4args, [
817 #include <linux/fs.h>
819 generic_permission(NULL, 0, 0, NULL);
821 AC_DEFINE(HAVE_GENERIC_PERMISSION_4ARGS, 1,
822 [generic_permission taken 4 arguments])
825 ]) # LC_GENERIC_PERMISSION
828 # LC_LM_XXX_LOCK_MANAGER_OPS
830 # 3.1 renames lock-manager ops(lock_manager_operations) from fl_xxx to lm_xxx
831 # see kernel commit 8fb47a4fbf858a164e973b8ea8ef5e83e61f2e50
833 AC_DEFUN([LC_LM_XXX_LOCK_MANAGER_OPS], [
834 LB_CHECK_COMPILE([if 'lock-manager' ops renamed to 'lm_xxx'],
835 lock_manager_ops_lm_xxx, [
836 #include <linux/fs.h>
838 struct lock_manager_operations lm_ops;
839 lm_ops.lm_compare_owner = NULL;
841 AC_DEFINE(HAVE_LM_XXX_LOCK_MANAGER_OPS, 1,
842 [lock-manager ops renamed to lm_xxx])
844 ]) # LC_LM_XXX_LOCK_MANAGER_OPS
849 # 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait
851 # see kernel commit bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3
853 AC_DEFUN([LC_INODE_DIO_WAIT], [
854 LB_CHECK_COMPILE([if 'inode->i_alloc_sem' is killed and use inode_dio_wait],
856 #include <linux/fs.h>
858 inode_dio_wait((struct inode *)0);
860 AC_DEFINE(HAVE_INODE_DIO_WAIT, 1,
861 [inode->i_alloc_sem is killed and use inode_dio_wait])
863 ]) # LC_INODE_DIO_WAIT
868 # 3.1 adds get_acl method to inode_operations to read ACL from disk.
869 # see kernel commit 4e34e719e457f2e031297175410fc0bd4016a085
871 AC_DEFUN([LC_IOP_GET_ACL], [
872 LB_CHECK_COMPILE([if 'inode_operations' has '.get_acl' member function],
874 #include <linux/fs.h>
876 struct inode_operations iop;
879 AC_DEFINE(HAVE_IOP_GET_ACL, 1,
880 [inode_operations has .get_acl member function])
885 # LC_FILE_LLSEEK_SIZE
887 # 3.1 introduced generic_file_llseek_size()
889 AC_DEFUN([LC_FILE_LLSEEK_SIZE], [
890 LB_CHECK_EXPORT([generic_file_llseek_size], [fs/read_write.c],
891 [AC_DEFINE(HAVE_FILE_LLSEEK_SIZE, 1,
892 [generic_file_llseek_size is exported by the kernel])])
893 ]) # LC_FILE_LLSEEK_SIZE
896 # LC_RADIX_EXCEPTION_ENTRY
897 # 3.1 adds radix_tree_exception_entry.
899 AC_DEFUN([LC_RADIX_EXCEPTION_ENTRY], [
900 LB_CHECK_COMPILE([radix_tree_exceptional_entry exist],
901 radix_tree_exceptional_entry, [
902 #include <linux/radix-tree.h>
904 radix_tree_exceptional_entry(NULL);
906 AC_DEFINE(HAVE_RADIX_EXCEPTION_ENTRY, 1,
907 [radix_tree_exceptional_entry exist])
909 ]) # LC_RADIX_EXCEPTION_ENTRY
912 # LC_HAVE_VOID_MAKE_REQUEST_FN
914 # 3.2 request_queue.make_request_fn defined as function returns with void
915 # see kernel commit 5a7bbad27a410350e64a2d7f5ec18fc73836c14f
917 AC_DEFUN([LC_HAVE_VOID_MAKE_REQUEST_FN], [
918 LB_CHECK_COMPILE([if 'request_queue.make_request_fn' returns void but not int],
919 make_request_fn_void, [
920 #include <linux/blkdev.h>
923 make_request_fn *mrf;
924 ret = mrf(NULL, NULL);
926 AC_DEFINE(HAVE_VOID_MAKE_REQUEST_FN, 1,
927 [request_queue.make_request_fn returns void but not int])
929 ]) # LC_HAVE_VOID_MAKE_REQUEST_FN
932 # LC_HAVE_PROTECT_I_NLINK
934 # 3.2 protects inode->i_nlink from direct modification
935 # see kernel commit a78ef704a8dd430225955f0709b22d4a6ba21deb
936 # at the same time adds set_nlink(), so checks set_nlink() for it.
938 AC_DEFUN([LC_HAVE_PROTECT_I_NLINK], [
939 LB_CHECK_COMPILE([if 'inode->i_nlink' is protected from direct modification],
940 inode_i_nlink_protected, [
941 #include <linux/fs.h>
946 AC_DEFINE(HAVE_PROTECT_I_NLINK, 1,
947 [inode->i_nlink is protected from direct modification])
949 ]) # LC_HAVE_PROTECT_I_NLINK
952 # 2.6.39 security_inode_init_security takes a 'struct qstr' parameter
954 # 3.2 security_inode_init_security takes a callback to set xattrs
956 AC_DEFUN([LC_HAVE_SECURITY_IINITSEC], [
957 LB_CHECK_COMPILE([if security_inode_init_security takes a callback],
958 security_inode_init_security_callback, [
959 #include <linux/security.h>
961 security_inode_init_security(NULL, NULL, NULL, (const initxattrs)NULL, NULL);
963 AC_DEFINE(HAVE_SECURITY_IINITSEC_CALLBACK, 1,
964 [security_inode_init_security takes a callback to set xattrs])
966 LB_CHECK_COMPILE([if security_inode_init_security takes a 'struct qstr' parameter],
967 security_inode_init_security_qstr, [
968 #include <linux/security.h>
970 security_inode_init_security(NULL, NULL, (struct qstr *)NULL, NULL, NULL, NULL);
972 AC_DEFINE(HAVE_SECURITY_IINITSEC_QSTR, 1,
973 [security_inode_init_security takes a 'struct qstr' parameter])
976 ]) # LC_HAVE_SECURITY_IINITSEC
979 # LC_HAVE_MIGRATE_HEADER
981 # 3.3 introduces migrate_mode.h and migratepage has 4 args
983 AC_DEFUN([LC_HAVE_MIGRATE_HEADER], [
984 LB_CHECK_FILE([$LINUX/include/linux/migrate.h], [
985 AC_DEFINE(HAVE_MIGRATE_H, 1,
986 [kernel has include/linux/migrate.h])
988 LB_CHECK_FILE([$LINUX/include/linux/migrate_mode.h], [
989 AC_DEFINE(HAVE_MIGRATE_MODE_H, 1,
990 [kernel has include/linux/migrate_mode.h])
993 ]) # LC_HAVE_MIGRATE_HEADER
996 # LC_MIGRATEPAGE_4ARGS
998 AC_DEFUN([LC_MIGRATEPAGE_4ARGS], [
999 LB_CHECK_COMPILE([if 'address_space_operations.migratepage' has 4 args],
1000 address_space_ops_migratepage_4args, [
1001 #include <linux/fs.h>
1002 #ifdef HAVE_MIGRATE_H
1003 #include <linux/migrate.h>
1004 #elif defined(HAVE_MIGRATE_MODE_H)
1005 #include <linux/migrate_mode.h>
1008 struct address_space_operations aops;
1009 aops.migratepage(NULL, NULL, NULL, MIGRATE_ASYNC);
1011 AC_DEFINE(HAVE_MIGRATEPAGE_4ARGS, 1,
1012 [address_space_operations.migratepage has 4 args])
1014 ]) # LC_MIGRATEPAGE_4ARGS
1017 # LC_SUPEROPS_USE_DENTRY
1019 # 3.3 switchs super_operations to use dentry as parameter (but not vfsmount)
1020 # see kernel commit 34c80b1d93e6e20ca9dea0baf583a5b5510d92d4
1022 AC_DEFUN([LC_SUPEROPS_USE_DENTRY], [
1023 tmp_flags="$EXTRA_KCFLAGS"
1024 EXTRA_KCFLAGS="-Werror"
1025 LB_CHECK_COMPILE([if 'super_operations' use 'dentry' as parameter],
1027 #include <linux/fs.h>
1028 int show_options(struct seq_file *seq, struct dentry *root) {
1032 struct super_operations ops;
1033 ops.show_options = show_options;
1035 AC_DEFINE(HAVE_SUPEROPS_USE_DENTRY, 1,
1036 [super_operations use dentry as parameter])
1038 EXTRA_KCFLAGS="$tmp_flags"
1039 ]) # LC_SUPEROPS_USE_DENTRY
1042 # LC_INODEOPS_USE_UMODE_T
1044 # 3.3 switchs inode_operations to use umode_t as parameter (but not int)
1045 # see kernel commit 1a67aafb5f72a436ca044293309fa7e6351d6a35
1047 AC_DEFUN([LC_INODEOPS_USE_UMODE_T], [
1048 tmp_flags="$EXTRA_KCFLAGS"
1049 EXTRA_KCFLAGS="-Werror"
1050 LB_CHECK_COMPILE([if 'inode_operations' use 'umode_t' as parameter],
1051 inode_ops_umode_t, [
1052 #include <linux/fs.h>
1053 #include <linux/types.h>
1054 int my_mknod(struct inode *dir, struct dentry *dchild,
1055 umode_t mode, dev_t dev)
1060 struct inode_operations ops;
1061 ops.mknod = my_mknod;
1063 AC_DEFINE(HAVE_INODEOPS_USE_UMODE_T, 1,
1064 [inode_operations use umode_t as parameter])
1066 EXTRA_KCFLAGS="$tmp_flags"
1067 ]) # LC_INODEOPS_USE_UMODE_T
1070 # LC_KMAP_ATOMIC_HAS_1ARG
1072 # 3.4 kmap_atomic removes second argument
1073 # see kernel commit 1ec9c5ddc17aa398f05646abfcbaf315b544e62f
1075 AC_DEFUN([LC_KMAP_ATOMIC_HAS_1ARG], [
1076 LB_CHECK_COMPILE([if 'kmap_atomic' has only 1 argument],
1078 #include <linux/highmem.h>
1082 AC_DEFINE(HAVE_KMAP_ATOMIC_HAS_1ARG, 1,
1083 [have kmap_atomic has only 1 argument])
1085 ]) # LC_KMAP_ATOMIC_HAS_1ARG
1088 # LC_HAVE_D_MAKE_ROOT
1090 # 3.4 converts d_alloc_root to d_make_root
1091 # see kernel commit 32991ab305ace7017c62f8eecbe5eb36dc32e13b
1093 AC_DEFUN([LC_HAVE_D_MAKE_ROOT], [
1094 LB_CHECK_COMPILE([if have 'd_make_root'],
1096 #include <linux/fs.h>
1098 d_make_root((struct inode *)NULL);
1100 AC_DEFINE(HAVE_D_MAKE_ROOT, 1,
1103 ]) # LC_HAVE_D_MAKE_ROOT
1106 # LC_HAVE_CACHE_REGISTER
1108 # 3.4 cache_register/cache_unregister are removed
1109 # see kernel commit 2c5f846747526e2b83c5f1b8e69016be0e2e87c0
1110 # Note, since 2.6.37 cache_register_net/cache_unregister_net
1111 # are defined, but not exported.
1112 # 3.3 cache_register_net/cache_unregister_net are
1113 # exported and replacing cache_register/cache_unregister in 3.4
1115 AC_DEFUN([LC_HAVE_CACHE_REGISTER], [
1116 LB_CHECK_COMPILE([if have 'cache_register'],
1118 #include <linux/sunrpc/cache.h>
1120 cache_register(NULL);
1122 AC_DEFINE(HAVE_CACHE_REGISTER, 1,
1123 [have cache_register])
1125 ]) # LC_HAVE_CACHE_REGISTER
1128 # LC_HAVE_CLEAR_INODE
1130 # 3.5 renames end_writeback() back to clear_inode()...
1131 # see kernel commit dbd5768f87ff6fb0a4fe09c4d7b6c4a24de99430
1133 AC_DEFUN([LC_HAVE_CLEAR_INODE], [
1134 LB_CHECK_COMPILE([if have 'clear_inode'],
1136 #include <linux/fs.h>
1138 clear_inode((struct inode *)NULL);
1140 AC_DEFINE(HAVE_CLEAR_INODE, 1,
1143 ]) # LC_HAVE_CLEAR_INODE
1146 # LC_HAVE_ENCODE_FH_PARENT
1148 # 3.5 encode_fh has parent inode passed in directly
1149 # see kernel commit b0b0382b
1151 AC_DEFUN([LC_HAVE_ENCODE_FH_PARENT], [
1152 tmp_flags="$EXTRA_KCFLAGS"
1153 EXTRA_KCFLAGS="-Werror"
1154 LB_CHECK_COMPILE([if 'encode_fh' have parent inode as parameter],
1155 encode_fh_parent_inode, [
1156 #include <linux/exportfs.h>
1157 #include <linux/fs.h>
1158 #include <linux/types.h>
1159 int ll_encode_fh(struct inode *i, __u32 *a, int *b, struct inode *p)
1164 struct export_operations exp_op;
1165 exp_op.encode_fh = ll_encode_fh;
1167 AC_DEFINE(HAVE_ENCODE_FH_PARENT, 1,
1168 [have parent inode as parameter])
1170 EXTRA_KCFLAGS="$tmp_flags"
1171 ]) # LC_HAVE_ENCODE_FH_PARENT
1174 # LC_FILE_LLSEEK_SIZE_5ARG
1176 # 3.5 has generic_file_llseek_size with 5 args
1178 AC_DEFUN([LC_FILE_LLSEEK_SIZE_5ARG], [
1179 LB_CHECK_COMPILE([if Linux kernel has 'generic_file_llseek_size' with 5 args],
1180 generic_file_llseek_size_5args, [
1181 #include <linux/fs.h>
1183 generic_file_llseek_size(NULL, 0, 0, 0, 0);
1185 AC_DEFINE(HAVE_FILE_LLSEEK_SIZE_5ARGS, 1,
1186 [kernel has generic_file_llseek_size with 5 args])
1188 ]) # LC_FILE_LLSEEK_SIZE_5ARG
1191 # LC_LLITE_DATA_IS_LIST
1193 # 3.6 switch i_dentry/d_alias from list to hlist
1195 # In the upstream kernels d_alias first changes
1196 # to a hlist and then in later version, 3.11, gets
1197 # moved to the union d_u. Due to some distros having
1198 # d_alias in the d_u union as a struct list, which
1199 # has never existed upstream stream, we can't test
1200 # if d_alias is a list or hlist directly. If ever
1201 # i_dentry and d_alias even up different combos then
1202 # the build will fail. In that case then we will need
1203 # to separate out the i_dentry and d_alias test below.
1205 AC_DEFUN([LC_DATA_FOR_LLITE_IS_LIST], [
1206 tmp_flags="$EXTRA_KCFLAGS"
1207 EXTRA_KCFLAGS="-Werror"
1208 LB_CHECK_COMPILE([if 'i_dentry/d_alias' uses 'list'],
1209 i_dentry_d_alias_list, [
1210 #include <linux/fs.h>
1213 INIT_LIST_HEAD(&inode.i_dentry);
1215 AC_DEFINE(DATA_FOR_LLITE_IS_LIST, 1,
1216 [both i_dentry/d_alias uses list])
1218 EXTRA_KCFLAGS="$tmp_flags"
1219 ]) # LC_DATA_FOR_LLITE_IS_LIST
1222 # LC_DENTRY_OPEN_USE_PATH
1224 # 3.6 dentry_open uses struct path as first argument
1225 # see kernel commit 765927b2
1227 AC_DEFUN([LC_DENTRY_OPEN_USE_PATH], [
1228 tmp_flags="$EXTRA_KCFLAGS"
1229 EXTRA_KCFLAGS="-Werror"
1230 LB_CHECK_COMPILE([if 'dentry_open' uses 'struct path' as first argument],
1232 #include <linux/fs.h>
1233 #include <linux/path.h>
1236 dentry_open(&path, 0, NULL);
1238 AC_DEFINE(HAVE_DENTRY_OPEN_USE_PATH, 1,
1239 [dentry_open uses struct path as first argument])
1241 EXTRA_KCFLAGS="$tmp_flags"
1242 ]) # LC_DENTRY_OPEN_USE_PATH
1245 # LC_HAVE_IOP_ATOMIC_OPEN
1247 # 3.6 vfs adds iop->atomic_open
1249 AC_DEFUN([LC_HAVE_IOP_ATOMIC_OPEN], [
1250 LB_CHECK_COMPILE([if 'iop' has 'atomic_open'],
1251 inode_ops_atomic_open, [
1252 #include <linux/fs.h>
1254 struct inode_operations iop;
1255 iop.atomic_open = NULL;
1257 AC_DEFINE(HAVE_IOP_ATOMIC_OPEN, 1,
1258 [have iop atomic_open])
1260 ]) # LC_HAVE_IOP_ATOMIC_OPEN
1263 # LC_HAVE_SB_START_WRITE
1265 # RHEL6 2.6.32, 3.6 or newer support wrapped FS freeze functions
1267 AC_DEFUN([LC_HAVE_SB_START_WRITE], [
1268 LB_CHECK_COMPILE([if kernel supports wrapped FS freeze functions],
1270 #include <linux/fs.h>
1272 sb_start_write(NULL);
1274 AC_DEFINE(HAVE_SB_START_WRITE, 1,
1275 [kernel supports wrapped FS freeze functions])
1277 ]) # LC_HAVE_SB_START_WRITE
1280 # LC_HAVE_POSIXACL_USER_NS
1282 # 3.7 posix_acl_{to,from}_xattr take struct user_namespace
1284 AC_DEFUN([LC_HAVE_POSIXACL_USER_NS], [
1285 LB_CHECK_COMPILE([if 'posix_acl_to_xattr' takes 'struct user_namespace'],
1286 posix_acl_to_xattr_user_namespace, [
1287 #include <linux/fs.h>
1288 #include <linux/posix_acl_xattr.h>
1290 posix_acl_to_xattr((struct user_namespace *)NULL, NULL, NULL, 0);
1292 AC_DEFINE(HAVE_POSIXACL_USER_NS, 1,
1293 [posix_acl_to_xattr takes struct user_namespace])
1295 ]) # LC_HAVE_POSIXACL_USER_NS
1298 # LC_HAVE_FILE_F_INODE
1300 # 3.8 struct file has new member f_inode
1302 AC_DEFUN([LC_HAVE_FILE_F_INODE], [
1303 LB_CHECK_COMPILE([if 'struct file' has member 'f_inode'],
1305 #include <linux/fs.h>
1307 ((struct file *)0)->f_inode = NULL;
1309 AC_DEFINE(HAVE_FILE_F_INODE, 1,
1310 [struct file has member f_inode])
1312 ]) # LC_HAVE_FILE_F_INODE
1315 # LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
1317 AC_DEFUN([LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS], [
1318 LB_CHECK_COMPILE([if 'sunrpc_cache_pipe_upcall' takes 3 args],
1319 sunrpc_cache_pipe_upcall_3args, [
1320 #include <linux/sunrpc/cache.h>
1322 sunrpc_cache_pipe_upcall(NULL, NULL, NULL);
1324 AC_DEFINE(HAVE_SUNRPC_UPCALL_HAS_3ARGS, 1,
1325 [sunrpc_cache_pipe_upcall takes 3 args])
1327 ]) # LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
1330 # LC_HAVE_HLIST_FOR_EACH_3ARG
1332 # 3.9 uses hlist_for_each_entry with 3 args
1333 # b67bfe0d42cac56c512dd5da4b1b347a23f4b70a
1335 AC_DEFUN([LC_HAVE_HLIST_FOR_EACH_3ARG], [
1336 LB_CHECK_COMPILE([if 'hlist_for_each_entry' has 3 args],
1337 hlist_for_each_entry_3args, [
1338 #include <linux/list.h>
1339 #include <linux/fs.h>
1341 struct hlist_head *head = NULL;
1342 struct inode *inode;
1344 hlist_for_each_entry(inode, head, i_hash) {
1348 AC_DEFINE(HAVE_HLIST_FOR_EACH_3ARG, 1,
1349 [hlist_for_each_entry has 3 args])
1351 ]) # LC_HAVE_HLIST_FOR_EACH_3ARG
1354 # LC_HAVE_BIO_END_SECTOR
1356 # 3.9 introduces bio_end_sector macro
1357 # f73a1c7d117d07a96d89475066188a2b79e53c48
1359 AC_DEFUN([LC_HAVE_BIO_END_SECTOR], [
1360 LB_CHECK_COMPILE([if 'bio_end_sector' is defined],
1362 #include <linux/bio.h>
1366 bio_end_sector(&bio);
1368 AC_DEFINE(HAVE_BIO_END_SECTOR, 1,
1369 [bio_end_sector is defined])
1371 ]) # LC_HAVE_BIO_END_SECTOR
1374 # LC_HAVE_REMOVE_PROC_SUBTREE
1376 # 3.10 introduced remove_proc_subtree
1378 AC_DEFUN([LC_HAVE_REMOVE_PROC_SUBTREE], [
1379 LB_CHECK_COMPILE([if 'remove_proc_subtree' is defined],
1380 remove_proc_subtree, [
1381 #include <linux/proc_fs.h>
1383 remove_proc_subtree(NULL, NULL);
1385 AC_DEFINE(HAVE_REMOVE_PROC_SUBTREE, 1,
1386 [remove_proc_subtree is defined])
1388 ]) # LC_HAVE_REMOVE_PROC_SUBTREE
1391 # LC_HAVE_PROC_REMOVE
1393 # 3.10 introduced proc_remove
1395 AC_DEFUN([LC_HAVE_PROC_REMOVE], [
1396 LB_CHECK_COMPILE([if 'proc_remove' is defined],
1398 #include <linux/proc_fs.h>
1402 AC_DEFINE(HAVE_PROC_REMOVE, 1,
1403 [proc_remove is defined])
1405 ]) # LC_HAVE_PROC_REMOVE
1408 # LC_BLKDEV_RELEASE_RETURN_INT
1410 # 3.10 release for block device doesn't return int
1412 AC_DEFUN([LC_BLKDEV_RELEASE_RETURN_INT], [
1413 LB_CHECK_COMPILE([if 'block_device_operations' release returns 'int'],
1414 block_device_ops_release_return_int, [
1415 #include <linux/blkdev.h>
1417 struct block_device_operations fops;
1418 int i __attribute__ ((unused));
1420 i = fops.release(NULL, 0);
1422 AC_DEFINE(HAVE_BLKDEV_RELEASE_RETURN_INT, 1,
1423 [block device release returns int])
1425 ]) # LC_BLKDEV_RELEASE_RETURN_INT
1428 # LC_INVALIDATE_RANGE
1430 # 3.11 invalidatepage requires the length of the range to invalidate
1432 AC_DEFUN([LC_INVALIDATE_RANGE], [
1433 LB_CHECK_COMPILE([if 'address_space_operations.invalidatepage' requires 3 arguments],
1434 address_space_ops_invalidatepage_3args, [
1435 #include <linux/fs.h>
1437 struct address_space_operations a_ops;
1438 a_ops.invalidatepage(NULL, 0, 0);
1440 AC_DEFINE(HAVE_INVALIDATE_RANGE, 1,
1441 [address_space_operations.invalidatepage needs 3 arguments])
1443 ]) # LC_INVALIDATE_RANGE
1446 # LC_HAVE_DIR_CONTEXT
1448 # 3.11 readdir now takes the new struct dir_context
1450 AC_DEFUN([LC_HAVE_DIR_CONTEXT], [
1451 LB_CHECK_COMPILE([if 'dir_context' exist],
1453 #include <linux/fs.h>
1455 struct dir_context ctx;
1458 AC_DEFINE(HAVE_DIR_CONTEXT, 1,
1459 [dir_context exist])
1461 ]) # LC_HAVE_DIR_CONTEXT
1464 # LC_D_COMPARE_5ARGS
1466 # 3.11 dentry_operations.d_compare() taken 5 arguments.
1468 AC_DEFUN([LC_D_COMPARE_5ARGS], [
1469 LB_CHECK_COMPILE([if 'd_compare' taken 5 arguments],
1471 #include <linux/dcache.h>
1473 ((struct dentry_operations*)0)->d_compare(NULL,NULL,0,NULL,NULL);
1475 AC_DEFINE(HAVE_D_COMPARE_5ARGS, 1,
1476 [d_compare need 5 arguments])
1478 ]) # LC_D_COMPARE_5ARGS
1483 # 3.11 need to access d_count to get dentry reference count
1485 AC_DEFUN([LC_HAVE_DCOUNT], [
1486 LB_CHECK_COMPILE([if 'd_count' exist],
1488 #include <linux/dcache.h>
1493 AC_DEFINE(HAVE_D_COUNT, 1,
1499 # LC_OLDSIZE_TRUNCATE_PAGECACHE
1501 # 3.12 truncate_pagecache without oldsize parameter
1503 AC_DEFUN([LC_OLDSIZE_TRUNCATE_PAGECACHE], [
1504 LB_CHECK_COMPILE([if 'truncate_pagecache' with 'old_size' parameter],
1505 truncate_pagecache_old_size, [
1506 #include <linux/mm.h>
1508 truncate_pagecache(NULL, 0, 0);
1510 AC_DEFINE(HAVE_OLDSIZE_TRUNCATE_PAGECACHE, 1,
1513 ]) # LC_OLDSIZE_TRUNCATE_PAGECACHE
1516 # LC_HAVE_DENTRY_D_U_D_ALIAS
1518 # 3.11 kernel moved d_alias to the union d_u in struct dentry
1520 # Some distros move d_alias to d_u but it is still a struct list
1522 AC_DEFUN([LC_HAVE_DENTRY_D_U_D_ALIAS], [
1523 AS_IF([test "x$lb_cv_compile_i_dentry_d_alias_list" = xyes], [
1524 LB_CHECK_COMPILE([if list 'dentry.d_u.d_alias' exist],
1526 #include <linux/list.h>
1527 #include <linux/dcache.h>
1530 INIT_LIST_HEAD(&de.d_u.d_alias);
1532 AC_DEFINE(HAVE_DENTRY_D_U_D_ALIAS, 1,
1533 [list dentry.d_u.d_alias exist])
1536 LB_CHECK_COMPILE([if hlist 'dentry.d_u.d_alias' exist],
1538 #include <linux/list.h>
1539 #include <linux/dcache.h>
1542 INIT_HLIST_NODE(&de.d_u.d_alias);
1544 AC_DEFINE(HAVE_DENTRY_D_U_D_ALIAS, 1,
1545 [hlist dentry.d_u.d_alias exist])
1548 ]) # LC_HAVE_DENTRY_D_U_D_ALIAS
1551 # LC_HAVE_DENTRY_D_CHILD
1553 # 3.11 kernel d_child has been moved out of the union d_u
1556 AC_DEFUN([LC_HAVE_DENTRY_D_CHILD], [
1557 LB_CHECK_COMPILE([if 'dentry.d_child' exist],
1559 #include <linux/list.h>
1560 #include <linux/dcache.h>
1563 INIT_LIST_HEAD(&de.d_child);
1565 AC_DEFINE(HAVE_DENTRY_D_CHILD, 1,
1566 [dentry.d_child exist])
1568 ]) # LC_HAVE_DENTRY_D_CHILD
1573 # 3.12 ki_left removed from struct kiocb
1575 AC_DEFUN([LC_KIOCB_KI_LEFT], [
1576 LB_CHECK_COMPILE([if 'struct kiocb' with 'ki_left' member],
1578 #include <linux/aio.h>
1580 ((struct kiocb*)0)->ki_left = 0;
1582 AC_DEFINE(HAVE_KIOCB_KI_LEFT, 1,
1585 ]) # LC_KIOCB_KI_LEFT
1588 # LC_VFS_RENAME_5ARGS
1590 # 3.13 has vfs_rename with 5 args
1592 AC_DEFUN([LC_VFS_RENAME_5ARGS], [
1593 LB_CHECK_COMPILE([if Linux kernel has 'vfs_rename' with 5 args],
1595 #include <linux/fs.h>
1597 vfs_rename(NULL, NULL, NULL, NULL, NULL);
1599 AC_DEFINE(HAVE_VFS_RENAME_5ARGS, 1,
1600 [kernel has vfs_rename with 5 args])
1602 ]) # LC_VFS_RENAME_5ARGS
1605 # LC_VFS_UNLINK_3ARGS
1607 # 3.13 has vfs_unlink with 3 args
1609 AC_DEFUN([LC_VFS_UNLINK_3ARGS], [
1610 LB_CHECK_COMPILE([if Linux kernel has 'vfs_unlink' with 3 args],
1612 #include <linux/fs.h>
1614 vfs_unlink(NULL, NULL, NULL);
1616 AC_DEFINE(HAVE_VFS_UNLINK_3ARGS, 1,
1617 [kernel has vfs_unlink with 3 args])
1619 ]) # LC_VFS_UNLINK_3ARGS
1624 # 3.14 move some of its data in struct bio into the new
1627 AC_DEFUN([LC_HAVE_BVEC_ITER], [
1628 LB_CHECK_COMPILE([if Linux kernel has struct bvec_iter],
1630 #include <linux/bio.h>
1632 struct bvec_iter iter;
1633 iter.bi_bvec_done = 0;
1635 AC_DEFINE(HAVE_BVEC_ITER, 1,
1636 [kernel has struct bvec_iter])
1638 ]) # LC_HAVE_BVEC_ITER
1641 # LC_HAVE_TRUNCATE_IPAGE_FINAL
1643 # 3.14 bring truncate_inode_pages_final for evict_inode
1645 AC_DEFUN([LC_HAVE_TRUNCATE_IPAGES_FINAL], [
1646 LB_CHECK_COMPILE([if Linux kernel has truncate_inode_pages_final],
1647 truncate_ipages_final, [
1648 #include <linux/mm.h>
1650 truncate_inode_pages_final(NULL);
1652 AC_DEFINE(HAVE_TRUNCATE_INODE_PAGES_FINAL, 1,
1653 [kernel has truncate_inode_pages_final])
1655 ]) # LC_HAVE_TRUNCATE_IPAGES_FINAL
1658 # LC_VFS_RENAME_6ARGS
1660 # 3.15 has vfs_rename with 6 args
1662 AC_DEFUN([LC_VFS_RENAME_6ARGS], [
1663 LB_CHECK_COMPILE([if Linux kernel has 'vfs_rename' with 6 args],
1665 #include <linux/fs.h>
1667 vfs_rename(NULL, NULL, NULL, NULL, NULL, NULL);
1669 AC_DEFINE(HAVE_VFS_RENAME_6ARGS, 1,
1670 [kernel has vfs_rename with 6 args])
1672 ]) # LC_VFS_RENAME_6ARGS
1675 # LC_DIRECTIO_USE_ITER
1677 # 3.16 kernel changes direct IO to use iov_iter
1679 AC_DEFUN([LC_DIRECTIO_USE_ITER], [
1680 LB_CHECK_COMPILE([if direct IO uses iov_iter],
1682 #include <linux/fs.h>
1684 struct address_space_operations ops;
1685 struct iov_iter *iter = NULL;
1688 ops.direct_IO(0, NULL, iter, offset);
1690 AC_DEFINE(HAVE_DIRECTIO_ITER, 1,
1691 [direct IO uses iov_iter])
1693 ]) # LC_DIRECTIO_USE_ITER
1696 # LC_HAVE_IOV_ITER_INIT_DIRECTION
1699 # 3.16 linux commit 71d8e532b1549a478e6a6a8a44f309d050294d00
1700 # changed iov_iter_init api to start accepting a tag
1701 # that defines if its a read or write operation
1703 AC_DEFUN([LC_HAVE_IOV_ITER_INIT_DIRECTION], [
1704 tmp_flags="$EXTRA_KCFLAGS"
1705 EXTRA_KCFLAGS="-Werror"
1706 LB_CHECK_COMPILE([if 'iov_iter_init' takes a tag],
1708 #include <linux/uio.h>
1709 #include <linux/fs.h>
1711 const struct iovec *iov = NULL;
1713 iov_iter_init(NULL, READ, iov, 1, 0);
1715 AC_DEFINE(HAVE_IOV_ITER_INIT_DIRECTION, 1,
1716 [iov_iter_init handles directional tag])
1718 EXTRA_KCFLAGS="$tmp_flags"
1719 ]) # LC_HAVE_IOV_ITER_INIT_DIRECTION
1722 # LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
1724 # 3.16 introduces [read|write]_iter to struct file_operations
1726 AC_DEFUN([LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER], [
1727 LB_CHECK_COMPILE([if 'file_operations.[read|write]_iter' exist],
1728 file_function_iter, [
1729 #include <linux/fs.h>
1731 ((struct file_operations *)NULL)->read_iter(NULL, NULL);
1732 ((struct file_operations *)NULL)->write_iter(NULL, NULL);
1734 AC_DEFINE(HAVE_FILE_OPERATIONS_READ_WRITE_ITER, 1,
1735 [file_operations.[read|write]_iter functions exist])
1737 ]) # LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
1742 # 3.17 replaces key_type::match with match_preparse
1743 # and has new struct key_match_data
1745 AC_DEFUN([LC_KEY_MATCH_DATA], [
1746 LB_CHECK_COMPILE([if struct key_match field exist],
1748 #include <linux/key-type.h>
1750 struct key_match_data data;
1752 AC_DEFINE(HAVE_KEY_MATCH_DATA, 1,
1753 [struct key_match_data exist])
1755 ]) # LC_KEY_MATCH_DATA
1758 # LC_NFS_FILLDIR_USE_CTX
1760 # 3.18 kernel moved from void cookie to struct dir_context
1762 AC_DEFUN([LC_NFS_FILLDIR_USE_CTX], [
1763 tmp_flags="$EXTRA_KCFLAGS"
1764 EXTRA_KCFLAGS="-Werror"
1765 LB_CHECK_COMPILE([if filldir_t uses struct dir_context],
1767 #include <linux/fs.h>
1769 int filldir(struct dir_context *ctx, const char* name,
1770 int i, loff_t off, u64 tmp, unsigned temp)
1775 struct dir_context ctx = {
1779 ctx.actor(NULL, "test", 0, (loff_t) 0, 0, 0);
1781 AC_DEFINE(HAVE_FILLDIR_USE_CTX, 1,
1782 [filldir_t needs struct dir_context as argument])
1784 EXTRA_KCFLAGS="$tmp_flags"
1785 ]) # LC_NFS_FILLDIR_USE_CTX
1788 # LC_PERCPU_COUNTER_INIT
1790 # 3.18 For kernels 3.18 and after percpu_counter_init starts
1791 # to pass a GFP_* memory allocation flag for internal
1792 # memory allocation purposes.
1794 AC_DEFUN([LC_PERCPU_COUNTER_INIT], [
1795 LB_CHECK_COMPILE([if percpu_counter_init uses GFP_* flag as argument],
1796 percpu_counter_init, [
1797 #include <linux/percpu_counter.h>
1799 percpu_counter_init(NULL, 0, GFP_KERNEL);
1801 AC_DEFINE(HAVE_PERCPU_COUNTER_INIT_GFP_FLAG, 1,
1802 [percpu_counter_init uses GFP_* flag])
1804 ]) # LC_PERCPU_COUNTER_INIT
1807 # LC_KIOCB_HAS_NBYTES
1809 # 3.19 kernel removed ki_nbytes from struct kiocb
1811 AC_DEFUN([LC_KIOCB_HAS_NBYTES], [
1812 LB_CHECK_COMPILE([if struct kiocb has ki_nbytes field],
1814 #include <linux/fs.h>
1820 AC_DEFINE(HAVE_KI_NBYTES, 1, [ki_nbytes field exist])
1822 ]) # LC_KIOCB_HAS_NBYTES
1825 # LC_BACKING_DEV_INFO_REMOVAL
1827 # 3.20 kernel removed backing_dev_info from address_space
1829 AC_DEFUN([LC_BACKING_DEV_INFO_REMOVAL], [
1830 LB_CHECK_COMPILE([if struct address_space has backing_dev_info],
1832 #include <linux/fs.h>
1834 struct address_space mapping;
1836 mapping.backing_dev_info = NULL;
1838 AC_DEFINE(HAVE_BACKING_DEV_INFO, 1, [backing_dev_info exist])
1840 ]) # LC_BACKING_DEV_INFO_REMOVAL
1843 # LC_HAVE_BDI_CAP_MAP_COPY
1845 # 3.20 removed mmap handling for backing devices since
1846 # it breaks on non-MMU systems. See kernel commit
1847 # b4caecd48005fbed3949dde6c1cb233142fd69e9
1849 AC_DEFUN([LC_HAVE_BDI_CAP_MAP_COPY], [
1850 LB_CHECK_COMPILE([if have 'BDI_CAP_MAP_COPY'],
1852 #include <linux/backing-dev.h>
1854 struct backing_dev_info info;
1856 info.capabilities = BDI_CAP_MAP_COPY;
1858 AC_DEFINE(HAVE_BDI_CAP_MAP_COPY, 1,
1859 [BDI_CAP_MAP_COPY exist])
1861 ]) # LC_HAVE_BDI_CAP_MAP_COPY
1864 # LC_CANCEL_DIRTY_PAGE
1866 # 4.0.0 kernel removed cancel_dirty_page
1868 AC_DEFUN([LC_CANCEL_DIRTY_PAGE], [
1869 LB_CHECK_COMPILE([if cancel_dirty_page still exist],
1870 cancel_dirty_page, [
1871 #include <linux/mm.h>
1873 cancel_dirty_page(NULL, PAGE_SIZE);
1875 AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
1876 [cancel_dirty_page is still available])
1878 ]) # LC_CANCEL_DIRTY_PAGE
1883 # 4.1 kernel has iov_iter_rw
1885 AC_DEFUN([LC_IOV_ITER_RW], [
1886 LB_CHECK_COMPILE([if iov_iter_rw exist],
1888 #include <linux/fs.h>
1889 #include <linux/uio.h>
1891 struct iov_iter *iter = NULL;
1895 AC_DEFINE(HAVE_IOV_ITER_RW, 1,
1896 [iov_iter_rw exist])
1901 # LC_HAVE_SYNC_READ_WRITE
1903 # 4.1 new_sync_[read|write] no longer exported
1905 AC_DEFUN([LC_HAVE_SYNC_READ_WRITE], [
1906 LB_CHECK_EXPORT([new_sync_read], [fs/read_write.c],
1907 [AC_DEFINE(HAVE_SYNC_READ_WRITE, 1,
1908 [new_sync_[read|write] is exported by the kernel])])
1909 ]) # LC_HAVE_SYNC_READ_WRITE
1912 # LC_NEW_CANCEL_DIRTY_PAGE
1914 # 4.2 kernel has new cancel_dirty_page
1916 AC_DEFUN([LC_NEW_CANCEL_DIRTY_PAGE], [
1917 LB_CHECK_COMPILE([if cancel_dirty_page with one argument exist],
1918 new_cancel_dirty_page, [
1919 #include <linux/mm.h>
1921 cancel_dirty_page(NULL);
1923 AC_DEFINE(HAVE_NEW_CANCEL_DIRTY_PAGE, 1,
1924 [cancel_dirty_page with one arguement is available])
1926 ]) # LC_NEW_CANCEL_DIRTY_PAGE
1929 # LC_SYMLINK_OPS_USE_NAMEIDATA
1931 # For the 4.2+ kernels the file system internal symlink api no
1932 # longer uses struct nameidata as a argument
1934 AC_DEFUN([LC_SYMLINK_OPS_USE_NAMEIDATA], [
1935 LB_CHECK_COMPILE([if symlink inode operations have struct nameidata argument],
1936 symlink_use_nameidata, [
1937 #include <linux/namei.h>
1938 #include <linux/fs.h>
1940 struct nameidata *nd = NULL;
1942 ((struct inode_operations *)0)->follow_link(NULL, nd);
1943 ((struct inode_operations *)0)->put_link(NULL, nd, NULL);
1945 AC_DEFINE(HAVE_SYMLINK_OPS_USE_NAMEIDATA, 1,
1946 [symlink inode operations need struct nameidata argument])
1948 ]) # LC_SYMLINK_OPS_USE_NAMEIDATA
1951 # LC_BIO_ENDIO_USES_ONE_ARG
1953 # 4.2 kernel bio_endio now only takes one argument
1955 AC_DEFUN([LC_BIO_ENDIO_USES_ONE_ARG], [
1956 LB_CHECK_COMPILE([if 'bio_endio' with one argument exist],
1958 #include <linux/bio.h>
1962 AC_DEFINE(HAVE_BIO_ENDIO_USES_ONE_ARG, 1,
1963 [bio_endio takes only one argument])
1965 ]) # LC_BIO_ENDIO_USES_ONE_ARG
1968 # LC_HAVE_LOOP_CTL_GET_FREE
1970 # 4.x kernel have moved userspace APIs to
1971 # the separate directory and all of them
1972 # support LOOP_CTL_GET_FREE
1974 AC_DEFUN([LC_HAVE_LOOP_CTL_GET_FREE], [
1975 LB_CHECK_FILE([$LINUX/include/linux/loop.h], [
1976 LB_CHECK_COMPILE([if have 'HAVE_LOOP_CTL_GET_FREE'],
1977 LOOP_CTL_GET_FREE, [
1978 #include <linux/loop.h>
1982 i = LOOP_CTL_GET_FREE;
1984 AC_DEFINE(HAVE_LOOP_CTL_GET_FREE, 1,
1985 [LOOP_CTL_GET_FREE exist])
1988 AC_DEFINE(HAVE_LOOP_CTL_GET_FREE, 1,
1989 [kernel has LOOP_CTL_GET_FREE])
1991 ]) # LC_HAVE_LOOP_CTL_GET_FREE
1994 # LC_HAVE_CACHE_HEAD_HLIST
1996 # 4.3 kernel swiched to hlist for cache_head
1998 AC_DEFUN([LC_HAVE_CACHE_HEAD_HLIST], [
1999 LB_CHECK_COMPILE([if 'struct cache_head' has 'cache_list' field],
2000 cache_head_has_hlist, [
2001 #include <linux/sunrpc/cache.h>
2003 do {} while(sizeof(((struct cache_head *)0)->cache_list));
2005 AC_DEFINE(HAVE_CACHE_HEAD_HLIST, 1,
2006 [cache_head has hlist cache_list])
2008 ]) # LC_HAVE_CACHE_HEAD_HLIST
2011 # LC_HAVE_LOCKS_LOCK_FILE_WAIT
2013 # 4.4 kernel have moved locks API users to
2014 # locks_lock_inode_wait()
2016 AC_DEFUN([LC_HAVE_LOCKS_LOCK_FILE_WAIT], [
2017 LB_CHECK_COMPILE([if 'locks_lock_file_wait' exists],
2018 locks_lock_file_wait, [
2019 #include <linux/fs.h>
2021 locks_lock_file_wait(NULL, NULL);
2023 AC_DEFINE(HAVE_LOCKS_LOCK_FILE_WAIT, 1,
2024 [kernel has locks_lock_file_wait])
2026 ]) # LC_HAVE_LOCKS_LOCK_FILE_WAIT
2029 # LC_HAVE_QC_MAKE_REQUEST_FN
2031 # 4.4 request_queue.make_request_fn defined as function returns with blk_qc_t
2032 # see kernel commit dece16353ef47d8d33f5302bc158072a9d65e26f
2034 AC_DEFUN([LC_HAVE_QC_MAKE_REQUEST_FN], [
2035 LB_CHECK_COMPILE([if 'request_queue.make_request_fn' returns blk_qc_t],
2036 make_request_fn_blk_qc_t, [
2037 #include <linux/blkdev.h>
2040 make_request_fn *mrf;
2041 ret = mrf(NULL, NULL);
2043 AC_DEFINE(HAVE_QC_MAKE_REQUEST_FN, 1,
2044 [request_queue.make_request_fn returns blk_qc_t])
2046 ]) # LC_HAVE_QC_MAKE_REQUEST_FN
2049 # LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
2051 # 4.4 kernel merged type-specific data with the payload data for keys
2053 AC_DEFUN([LC_HAVE_KEY_PAYLOAD_DATA_ARRAY], [
2054 LB_CHECK_COMPILE([if 'struct key' has 'payload.data' as an array],
2055 key_payload_data_array, [
2056 #include <linux/key.h>
2058 ((struct key *)0)->payload.data[0] = NULL;
2060 AC_DEFINE(HAVE_KEY_PAYLOAD_DATA_ARRAY, 1, [payload.data is an array])
2062 ]) #LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
2067 # Lustre linux kernel checks
2069 AC_DEFUN([LC_PROG_LINUX], [
2070 AC_MSG_NOTICE([Lustre kernel checks
2071 ==============================================================================])
2075 LC_CONFIG_HEALTH_CHECK_WRITE
2076 LC_CONFIG_LRU_RESIZE
2077 LC_LLITE_LLOOP_MODULE
2079 LC_GLIBC_SUPPORT_FHANDLES
2084 LC_BLK_QUEUE_MAX_SEGMENTS
2087 LC_HAVE_DQUOT_FS_DISK_QUOTA
2088 LC_HAVE_DQUOT_SUSPEND
2089 LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE
2093 LC_EXPORT_SIMPLE_SETATTR
2094 LC_EXPORT_TRUNCATE_COMPLETE_PAGE
2098 LC_SBOPS_EVICT_INODE
2104 LC_BLKDEV_GET_BY_DEV
2105 LC_GENERIC_PERMISSION
2112 LC_REQUEST_QUEUE_UNPLUG_FN
2113 LC_HAVE_FHANDLE_SYSCALLS
2114 LC_HAVE_FSTYPE_MOUNT
2116 LC_HAVE_INODE_OWNER_OR_CAPABLE
2117 LC_HAVE_SECURITY_IINITSEC
2120 LC_DIRTY_INODE_WITH_FLAG
2123 LC_LM_XXX_LOCK_MANAGER_OPS
2127 LC_INODE_PERMISION_2ARGS
2128 LC_RADIX_EXCEPTION_ENTRY
2129 LC_HAVE_LOOP_CTL_GET_FREE
2132 LC_HAVE_VOID_MAKE_REQUEST_FN
2133 LC_HAVE_PROTECT_I_NLINK
2136 LC_HAVE_MIGRATE_HEADER
2137 LC_MIGRATEPAGE_4ARGS
2138 LC_SUPEROPS_USE_DENTRY
2139 LC_INODEOPS_USE_UMODE_T
2140 LC_HAVE_CACHE_REGISTER
2144 LC_KMAP_ATOMIC_HAS_1ARG
2148 LC_HAVE_ENCODE_FH_PARENT
2149 LC_FILE_LLSEEK_SIZE_5ARG
2152 LC_DATA_FOR_LLITE_IS_LIST
2153 LC_DENTRY_OPEN_USE_PATH
2154 LC_HAVE_IOP_ATOMIC_OPEN
2155 LC_HAVE_SB_START_WRITE
2158 LC_HAVE_POSIXACL_USER_NS
2161 LC_HAVE_FILE_F_INODE
2162 LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
2165 LC_HAVE_HLIST_FOR_EACH_3ARG
2166 LC_HAVE_BIO_END_SECTOR
2169 LC_BLKDEV_RELEASE_RETURN_INT
2170 LC_HAVE_REMOVE_PROC_SUBTREE
2178 LC_HAVE_DENTRY_D_U_D_ALIAS
2179 LC_HAVE_DENTRY_D_CHILD
2182 LC_OLDSIZE_TRUNCATE_PAGECACHE
2191 LC_HAVE_TRUNCATE_IPAGES_FINAL
2197 LC_DIRECTIO_USE_ITER
2198 LC_HAVE_IOV_ITER_INIT_DIRECTION
2199 LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
2205 LC_PERCPU_COUNTER_INIT
2206 LC_NFS_FILLDIR_USE_CTX
2212 LC_BACKING_DEV_INFO_REMOVAL
2213 LC_HAVE_BDI_CAP_MAP_COPY
2216 LC_CANCEL_DIRTY_PAGE
2220 LC_HAVE_SYNC_READ_WRITE
2223 LC_NEW_CANCEL_DIRTY_PAGE
2224 LC_BIO_ENDIO_USES_ONE_ARG
2225 LC_SYMLINK_OPS_USE_NAMEIDATA
2228 LC_HAVE_CACHE_HEAD_HLIST
2231 LC_HAVE_LOCKS_LOCK_FILE_WAIT
2232 LC_HAVE_QC_MAKE_REQUEST_FN
2233 LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
2236 AS_IF([test "x$enable_server" != xno], [
2237 LC_FUNC_DEV_SET_RDONLY
2247 # Check whether to build the client side of Lustre
2249 AC_DEFUN([LC_CONFIG_CLIENT], [
2250 AC_MSG_CHECKING([whether to build Lustre client support])
2251 AC_ARG_ENABLE([client],
2252 AC_HELP_STRING([--disable-client],
2253 [disable Lustre client support]),
2254 [], [enable_client="yes"])
2255 AC_MSG_RESULT([$enable_client])
2256 ]) # LC_CONFIG_CLIENT
2261 AC_DEFUN([LB_CONFIG_MPITESTS], [
2262 AC_ARG_ENABLE([mpitests],
2263 AC_HELP_STRING([--enable-mpitests=<yes|no|mpicc wrapper>],
2264 [include mpi tests]), [
2265 enable_mpitests="yes"
2268 MPICC_WRAPPER="mpicc"
2271 enable_mpitests="no"
2274 MPICC_WRAPPER=$enableval
2278 enable_mpitests="yes"
2279 MPICC_WRAPPER="mpicc"
2282 if test "x$enable_mpitests" != "xno"; then
2285 AC_CACHE_CHECK([whether mpitests can be built],
2286 lb_cv_mpi_tests, [AC_COMPILE_IFELSE([AC_LANG_SOURCE([
2290 MPI_Initialized(&flag);
2293 ])], [lb_cv_mpi_tests="yes"], [lb_cv_mpi_tests="no"])
2295 enable_mpitests=$lb_cv_mpi_tests
2298 AC_SUBST(MPICC_WRAPPER)
2299 ]) # LB_CONFIG_MPITESTS
2304 # whether to enable quota support global control
2306 AC_DEFUN([LC_CONFIG_QUOTA], [
2307 AC_MSG_CHECKING([whether to enable quota support global control])
2308 AC_ARG_ENABLE([quota],
2309 AC_HELP_STRING([--enable-quota],
2310 [enable quota support]),
2311 [], [enable_quota="yes"])
2312 AS_IF([test "x$enable_quota" = xyes],
2313 [AC_MSG_RESULT([yes])],
2314 [AC_MSG_RESULT([no])])
2315 ]) # LC_CONFIG_QUOTA
2320 AC_DEFUN([LC_QUOTA], [
2324 AS_IF([test "x$enable_quota" != xno -a "x$enable_utils" != xno], [
2325 AC_CHECK_HEADER([sys/quota.h],
2326 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1,
2327 [Define to 1 if you have <sys/quota.h>.])],
2328 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
2333 # LC_CONFIG_NODEMAP_PROC_DEBUG
2335 # enable nodemap proc file debugging
2337 AC_DEFUN([LC_NODEMAP_PROC_DEBUG], [
2338 AC_MSG_CHECKING([whether to enable nodemap proc debug])
2339 AC_ARG_ENABLE([nodemap_proc_debug],
2340 AC_HELP_STRING([--enable-nodemap-proc-debug],
2341 [enable nodemap proc debug]),
2342 [], [enable_nodemap_proc_debug="no"])
2343 AC_MSG_RESULT([$enable_nodemap_proc_debug])
2344 AS_IF([test "x$enable_nodemap_proc_debug" != xno],
2345 [AC_DEFINE(NODEMAP_PROC_DEBUG, 1,
2346 [enable nodemap proc debug support])])
2347 ]) # LC_NODEMAP_PROC_DEBUG
2350 # LC_LLITE_LLOOP_MODULE
2352 # lloop_llite.ko does not currently work with page sizes
2355 AC_DEFUN([LC_LLITE_LLOOP_MODULE], [
2356 LB_CHECK_COMPILE([whether to enable 'llite_lloop' module],
2357 enable_llite_lloop_module, [
2358 #include <asm/page.h>
2360 #if PAGE_SIZE >= 65536
2361 #error "PAGE_SIZE >= 65536"
2364 [enable_llite_lloop_module="yes"],
2365 [enable_llite_lloop_module="no"])
2366 ]) # LC_LLITE_LLOOP_MODULE
2371 # configure support for optional OSD implementation
2373 AC_DEFUN([LC_OSD_ADDON], [
2374 AC_MSG_CHECKING([whether to use OSD addon])
2376 AC_HELP_STRING([--with-osd=path],
2377 [set path to optional osd]),
2384 OSDADDON="$with_osd"
2391 AS_IF([test $ENABLEOSDADDON -eq 0], [
2395 OSDMODNAME=$(basename $OSDADDON)
2396 AS_IF([test -e $LUSTRE/$OSDMODNAME], [
2397 AC_MSG_RESULT([can't link])
2399 ], [ln -s $OSDADDON $LUSTRE/$OSDMODNAME], [
2400 AC_MSG_RESULT([$OSDMODNAME])
2401 OSDADDON="subdir-m += $OSDMODNAME"
2403 AC_MSG_RESULT([can't link])
2413 # other configure checks
2415 AC_DEFUN([LC_CONFIGURE], [
2416 AC_MSG_NOTICE([Lustre core checks
2417 ==============================================================================])
2419 LC_CONFIG_OBD_BUFFER_SIZE
2421 AS_IF([test $target_cpu == "i686" -o $target_cpu == "x86_64"],
2422 [CFLAGS="$CFLAGS -Wall -Werror"])
2424 # maximum MDS thread count
2427 # lustre/utils/gss/gss_util.c
2428 # lustre/utils/gss/gssd_proc.c
2429 # lustre/utils/gss/krb5_util.c
2430 # lustre/utils/llog_reader.c
2431 # lustre/utils/create_iam.c
2432 # lustre/utils/libiam.c
2433 AC_CHECK_HEADERS([netdb.h endian.h])
2434 AC_CHECK_FUNCS([gethostbyname])
2436 # lustre/utils/llverdev.c
2437 AC_CHECK_HEADERS([blkid/blkid.h])
2439 # lustre/utils/llverfs.c
2440 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
2443 AC_CHECK_LIB([selinux], [is_selinux_enabled],
2444 [AC_CHECK_HEADERS([selinux/selinux.h],
2445 [SELINUX="-lselinux"
2446 AC_DEFINE([HAVE_SELINUX], 1,
2447 [support for selinux ])],
2450 No libselinux-devel package found, unable to build selinux enabled tools
2455 No selinux package found, unable to build selinux enabled tools
2461 AC_MSG_CHECKING([whether to report minimum OST free space])
2462 AC_ARG_ENABLE([mindf],
2463 AC_HELP_STRING([--enable-mindf],
2464 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
2465 [], [enable_mindf="no"])
2466 AC_MSG_RESULT([$enable_mindf])
2467 AS_IF([test "$enable_mindf" = "yes"],
2468 [AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])])
2470 AC_MSG_CHECKING([whether to randomly failing memory alloc])
2471 AC_ARG_ENABLE([fail_alloc],
2472 AC_HELP_STRING([--disable-fail-alloc],
2473 [disable randomly alloc failure]),
2474 [], [enable_fail_alloc="yes"])
2475 AC_MSG_RESULT([$enable_fail_alloc])
2476 AS_IF([test "x$enable_fail_alloc" != xno],
2477 [AC_DEFINE([RANDOM_FAIL_ALLOC], 1,
2478 [enable randomly alloc failure])])
2480 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
2481 AC_ARG_ENABLE([invariants],
2482 AC_HELP_STRING([--enable-invariants],
2483 [enable invariant checking (cpu intensive)]),
2484 [], [enable_invariants="no"])
2485 AC_MSG_RESULT([$enable_invariants])
2486 AS_IF([test "x$enable_invariants" = xyes],
2487 [AC_DEFINE([CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK], 1,
2488 [enable invariant checking])])
2490 AC_MSG_CHECKING([whether to track references with lu_ref])
2491 AC_ARG_ENABLE([lu_ref],
2492 AC_HELP_STRING([--enable-lu_ref],
2493 [enable lu_ref reference tracking code]),
2494 [], [enable_lu_ref="no"])
2495 AC_MSG_RESULT([$enable_lu_ref])
2496 AS_IF([test "x$enable_lu_ref" = xyes],
2497 [AC_DEFINE([USE_LU_REF], 1,
2498 [enable lu_ref reference tracking code])])
2500 AC_MSG_CHECKING([whether to enable page state tracking])
2501 AC_ARG_ENABLE([pgstate-track],
2502 AC_HELP_STRING([--enable-pgstate-track],
2503 [enable page state tracking]),
2504 [], [enable_pgstat_track="no"])
2505 AC_MSG_RESULT([$enable_pgstat_track])
2506 AS_IF([test "x$enable_pgstat_track" = xyes],
2507 [AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
2508 [enable page state tracking code])])
2514 # AM_CONDITIONALS for lustre
2516 AC_DEFUN([LC_CONDITIONALS], [
2517 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
2518 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
2519 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
2520 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
2521 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
2522 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
2523 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
2524 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
2525 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
2526 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
2527 AM_CONDITIONAL(LLITE_LLOOP, test x$enable_llite_lloop_module = xyes)
2528 ]) # LC_CONDITIONALS
2533 # files that should be generated with AC_OUTPUT
2535 AC_DEFUN([LC_CONFIG_FILES],
2539 lustre/autoconf/Makefile
2540 lustre/conf/Makefile
2541 lustre/contrib/Makefile
2543 lustre/include/Makefile
2544 lustre/include/lustre/Makefile
2545 lustre/kernel_patches/targets/3.10-rhel7.target
2546 lustre/kernel_patches/targets/2.6-rhel6.8.target
2547 lustre/kernel_patches/targets/2.6-rhel6.7.target
2548 lustre/kernel_patches/targets/2.6-rhel6.6.target
2549 lustre/kernel_patches/targets/2.6-rhel6.target
2550 lustre/kernel_patches/targets/2.6-rhel5.target
2551 lustre/kernel_patches/targets/2.6-sles11.target
2552 lustre/kernel_patches/targets/3.0-sles11.target
2553 lustre/kernel_patches/targets/3.0-sles11sp3.target
2554 lustre/kernel_patches/targets/3.0-sles11sp4.target
2555 lustre/kernel_patches/targets/3.12-sles12.target
2556 lustre/kernel_patches/targets/2.6-fc11.target
2557 lustre/kernel_patches/targets/2.6-fc12.target
2558 lustre/kernel_patches/targets/2.6-fc15.target
2559 lustre/kernel_patches/targets/3.x-fc18.target
2560 lustre/ldlm/Makefile
2562 lustre/fid/autoMakefile
2563 lustre/llite/Makefile
2564 lustre/llite/autoMakefile
2566 lustre/lov/autoMakefile
2568 lustre/mdc/autoMakefile
2570 lustre/lmv/autoMakefile
2571 lustre/lfsck/Makefile
2572 lustre/lfsck/autoMakefile
2574 lustre/mdt/autoMakefile
2576 lustre/mdd/autoMakefile
2578 lustre/fld/autoMakefile
2579 lustre/obdclass/Makefile
2580 lustre/obdclass/autoMakefile
2581 lustre/obdclass/linux/Makefile
2582 lustre/obdecho/Makefile
2583 lustre/obdecho/autoMakefile
2585 lustre/ofd/autoMakefile
2587 lustre/osc/autoMakefile
2589 lustre/ost/autoMakefile
2590 lustre/osd-ldiskfs/Makefile
2591 lustre/osd-ldiskfs/autoMakefile
2592 lustre/osd-zfs/Makefile
2593 lustre/osd-zfs/autoMakefile
2595 lustre/mgc/autoMakefile
2597 lustre/mgs/autoMakefile
2598 lustre/target/Makefile
2599 lustre/ptlrpc/Makefile
2600 lustre/ptlrpc/autoMakefile
2601 lustre/ptlrpc/gss/Makefile
2602 lustre/ptlrpc/gss/autoMakefile
2603 lustre/quota/Makefile
2604 lustre/quota/autoMakefile
2605 lustre/scripts/Makefile
2606 lustre/tests/Makefile
2607 lustre/tests/mpi/Makefile
2608 lustre/utils/Makefile
2609 lustre/utils/gss/Makefile
2611 lustre/osp/autoMakefile
2613 lustre/lod/autoMakefile
2615 ]) # LC_CONFIG_FILES