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_GLIBC_SUPPORT_FHANDLES
52 AC_DEFUN([LC_GLIBC_SUPPORT_FHANDLES], [
53 AC_CHECK_FUNCS([name_to_handle_at],
54 [AC_DEFINE(HAVE_FHANDLE_GLIBC_SUPPORT, 1,
55 [file handle and related syscalls are supported])],
56 [AC_MSG_WARN([file handle and related syscalls are not supported])])
57 ]) # LC_GLIBC_SUPPORT_FHANDLES
62 # Ensure the stack size is at least 8k in Lustre server (all kernels)
64 AC_DEFUN([LC_STACK_SIZE], [
65 LB_CHECK_COMPILE([if stack size is at least 8k],
67 #include <linux/thread_info.h>
69 #if THREAD_SIZE < 8192
70 #error "stack size < 8192"
72 ], [], [AC_MSG_ERROR([
74 Lustre requires that Linux is configured with at least a 8KB stack.
81 # Allow the user to set the MDS thread upper limit
83 AC_DEFUN([LC_MDS_MAX_THREADS], [
84 AC_MSG_CHECKING([for maximum number of MDS threads])
85 AC_ARG_WITH([mds_max_threads],
86 AC_HELP_STRING([--with-mds-max-threads=count],
87 [maximum threads available on the MDS: (default=512)]),
88 [AC_DEFINE_UNQUOTED(MDS_MAX_THREADS, $with_mds_max_threads,
89 [maximum number of MDS threads])])
90 AC_MSG_RESULT([$with_mds_max_threads])
91 ]) # LC_MDS_MAX_THREADS
96 # the pinger is temporary, until we have the recovery node in place
98 AC_DEFUN([LC_CONFIG_PINGER], [
99 AC_MSG_CHECKING([whether to enable Lustre pinger support])
100 AC_ARG_ENABLE([pinger],
101 AC_HELP_STRING([--disable-pinger],
102 [disable recovery pinger support]),
103 [], [enable_pinger="yes"])
104 AC_MSG_RESULT([$enable_pinger])
105 AS_IF([test "x$enable_pinger" != xno],
106 [AC_DEFINE(ENABLE_PINGER, 1,[Use the Pinger])])
107 ]) # LC_CONFIG_PINGER
112 # do checksum of bulk data between client and OST
114 AC_DEFUN([LC_CONFIG_CHECKSUM], [
115 AC_MSG_CHECKING([whether to enable data checksum support])
116 AC_ARG_ENABLE([checksum],
117 AC_HELP_STRING([--disable-checksum],
118 [disable data checksum support]),
119 [], [enable_checksum="yes"])
120 AC_MSG_RESULT([$enable_checksum])
121 AS_IF([test "x$enable_checksum" != xno],
122 [AC_DEFINE(ENABLE_CHECKSUM, 1, [do data checksums])])
123 ]) # LC_CONFIG_CHECKSUM
126 # LC_CONFIG_HEALTH_CHECK_WRITE
128 # Turn off the actual write to the disk
130 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE], [
131 AC_MSG_CHECKING([whether to enable a write with the health check])
132 AC_ARG_ENABLE([health_write],
133 AC_HELP_STRING([--enable-health_write],
134 [enable disk writes when doing health check]),
135 [], [enable_health_write="no"])
136 AC_MSG_RESULT([$enable_health_write])
137 AS_IF([test "x$enable_health_write" != xno],
138 [AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, [Write when Checking Health])])
139 ]) # LC_CONFIG_HEALTH_CHECK_WRITE
142 # LC_CONFIG_LRU_RESIZE
144 AC_DEFUN([LC_CONFIG_LRU_RESIZE], [
145 AC_MSG_CHECKING([whether to enable lru self-adjusting])
146 AC_ARG_ENABLE([lru_resize],
147 AC_HELP_STRING([--enable-lru-resize],
148 [enable lru resize support]),
149 [], [enable_lru_resize="yes"])
150 AC_MSG_RESULT([$enable_lru_resize])
151 AS_IF([test "x$enable_lru_resize" != xno],
152 [AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])])
153 ]) # LC_CONFIG_LRU_RESIZE
158 # Quota support. The kernel must support CONFIG_QUOTA.
160 AC_DEFUN([LC_QUOTA_CONFIG], [
161 LB_CHECK_CONFIG_IM([QUOTA], [],
164 Lustre quota requires that CONFIG_QUOTA is enabled in your kernel.
169 # LC_EXPORT_TRUNCATE_COMPLETE_PAGE
171 # truncate_complete_page() has never been exported from an upstream kernel
172 # remove_from_page_cache() was exported between 2.6.35 and 2.6.38
173 # delete_from_page_cache() is exported from 2.6.39
175 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE_PAGE], [
176 LB_CHECK_EXPORT([truncate_complete_page], [mm/truncate.c],
177 [AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
178 [kernel export truncate_complete_page])])
179 LB_CHECK_EXPORT([remove_from_page_cache], [mm/filemap.c],
180 [AC_DEFINE(HAVE_REMOVE_FROM_PAGE_CACHE, 1,
181 [kernel export remove_from_page_cache])])
182 LB_CHECK_EXPORT([delete_from_page_cache], [mm/filemap.c],
183 [AC_DEFINE(HAVE_DELETE_FROM_PAGE_CACHE, 1,
184 [kernel export delete_from_page_cache])])
185 ]) # LC_EXPORT_TRUNCATE_COMPLETE_PAGE
188 # LC_CONFIG_GSS_KEYRING
190 # default 'auto', tests for dependencies, if found, enables;
191 # only called if gss is enabled
193 AC_DEFUN([LC_CONFIG_GSS_KEYRING], [
194 AC_MSG_CHECKING([whether to enable gss keyring backend])
195 AC_ARG_ENABLE([gss_keyring],
196 [AC_HELP_STRING([--disable-gss-keyring],
197 [disable gss keyring backend])],
198 [], [enable_gss_keyring="auto"])
199 AC_MSG_RESULT([$enable_gss_keyring])
200 AS_IF([test "x$enable_gss_keyring" != xno], [
201 LB_CHECK_CONFIG_IM([KEYS], [], [
202 gss_keyring_conf_test="fail"
203 AC_MSG_WARN([GSS keyring backend requires that CONFIG_KEYS be enabled in your kernel.])])
205 AC_CHECK_LIB([keyutils], [keyctl_search], [], [
206 gss_keyring_conf_test="fail"
207 AC_MSG_WARN([GSS keyring backend requires libkeyutils])])
209 AS_IF([test "x$gss_keyring_conf_test" != xfail], [
210 AC_DEFINE([HAVE_GSS_KEYRING], [1],
211 [Define this if you enable gss keyring backend])
212 enable_gss_keyring="yes"
214 AS_IF([test "x$enable_gss_keyring" = xyes], [
215 AC_MSG_ERROR([Cannot enable gss_keyring. See above for details.])
219 ]) # LC_CONFIG_GSS_KEYRING
222 # LC_HAVE_CRED_TGCRED
224 # rhel7 struct cred has no member tgcred
226 AC_DEFUN([LC_HAVE_CRED_TGCRED], [
227 LB_CHECK_COMPILE([if 'struct cred' has member 'tgcred'],
229 #include <linux/cred.h>
231 ((struct cred *)0)->tgcred = NULL;
233 AC_DEFINE(HAVE_CRED_TGCRED, 1,
234 [struct cred has member tgcred])
236 ]) # LC_HAVE_CRED_TGCRED
239 # LC_KEY_TYPE_INSTANTIATE_2ARGS
241 # rhel7 key_type->instantiate takes 2 args (struct key, struct key_preparsed_payload)
243 AC_DEFUN([LC_KEY_TYPE_INSTANTIATE_2ARGS], [
244 LB_CHECK_COMPILE([if 'key_type->instantiate' has two args],
245 key_type_instantiate_2args, [
246 #include <linux/key-type.h>
248 ((struct key_type *)0)->instantiate(0, NULL);
250 AC_DEFINE(HAVE_KEY_TYPE_INSTANTIATE_2ARGS, 1,
251 [key_type->instantiate has two args])
253 ]) # LC_KEY_TYPE_INSTANTIATE_2ARGS
258 AC_DEFUN([LC_CONFIG_SUNRPC], [
259 LB_CHECK_CONFIG_IM([SUNRPC], [], [
260 AS_IF([test "x$sunrpc_required" = xyes], [
263 kernel SUNRPC support is required by using GSS.
266 ]) # LC_CONFIG_SUNRPC
269 # LC_HAVE_CRYPTO_HASH
271 # 4.6 kernel commit 896545098777564212b9e91af4c973f094649aa7
272 # removed crypto_hash support. Since GSS only works with
273 # crypto_hash it has to be disabled for newer distros.
275 AC_DEFUN([LC_HAVE_CRYPTO_HASH], [
276 LB_CHECK_COMPILE([if crypto_hash API is supported],
278 #include <linux/crypto.h>
280 crypto_hash_digestsize(NULL);
281 ], [], [enable_gss="no"])
283 ]) # LC_HAVE_CRYPTO_HASH
286 # LC_CONFIG_GSS (default 'auto' (tests for dependencies, if found, enables))
288 # Build gss and related tools of Lustre. Currently both kernel and user space
289 # parts are depend on linux platform.
291 AC_DEFUN([LC_CONFIG_GSS], [
292 AC_MSG_CHECKING([whether to enable gss support])
294 [AC_HELP_STRING([--enable-gss], [enable gss support])],
295 [], [enable_gss="auto"])
296 AC_MSG_RESULT([$enable_gss])
298 AS_IF([test "x$enable_gss" != xno], [
299 LC_CONFIG_GSS_KEYRING
302 LC_KEY_TYPE_INSTANTIATE_2ARGS
303 sunrpc_required=$enable_gss
307 LB_CHECK_CONFIG_IM([CRYPTO_MD5], [],
308 [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
309 LB_CHECK_CONFIG_IM([CRYPTO_SHA1], [],
310 [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
311 LB_CHECK_CONFIG_IM([CRYPTO_SHA256], [],
312 [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
313 LB_CHECK_CONFIG_IM([CRYPTO_SHA512], [],
314 [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
316 require_krb5=$enable_gss
320 AS_IF([test -n "$KRBDIR"], [
321 gss_conf_test="success"
323 gss_conf_test="failure"
326 AS_IF([test "x$gss_conf_test" = xsuccess && test "x$enable_gss" != xno], [
327 AC_DEFINE([HAVE_GSS], [1], [Define this is if you enable gss])
330 enable_gss_keyring="no"
334 enable_ssk=$enable_gss
336 enable_gss_keyring="no"
342 # OpenSSL 1.0+ return int for HMAC functions but older SLES11 versions do not
343 AC_DEFUN([LC_OPENSSL_SSK], [
344 AC_MSG_CHECKING([whether OpenSSL has functions needed for SSK])
345 AS_IF([test "x$enable_ssk" != xno], [
346 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
347 #include <openssl/hmac.h>
348 #include <openssl/evp.h>
354 rc = HMAC_Init_ex(&ctx, "test", 4, EVP_md_null(), NULL);
356 ])],[AC_DEFINE(HAVE_OPENSSL_SSK, 1,
357 [OpenSSL HMAC functions needed for SSK])],
360 AC_MSG_RESULT([$enable_ssk])
363 # LC_INODE_PERMISION_2ARGS
365 # up to v2.6.27 had a 3 arg version (inode, mask, nameidata)
366 # v2.6.27->v2.6.37 had a 2 arg version (inode, mask)
367 # v2.6.37->v3.0 had a 3 arg version (inode, mask, nameidata)
368 # v3.1 onward have a 2 arg version (inode, mask)
370 AC_DEFUN([LC_INODE_PERMISION_2ARGS], [
371 LB_CHECK_COMPILE([if 'inode_operations->permission' has two args],
372 inode_ops_permission_2args, [
373 #include <linux/fs.h>
375 struct inode *inode __attribute__ ((unused));
378 inode->i_op->permission(NULL, 0);
380 AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
381 [inode_operations->permission has two args])
383 ]) # LC_INODE_PERMISION_2ARGS
386 # LC_BLK_QUEUE_MAX_SEGMENTS
388 # 2.6.32 replaces 2 functions blk_queue_max_phys_segments and blk_queue_max_hw_segments by blk_queue_max_segments
390 AC_DEFUN([LC_BLK_QUEUE_MAX_SEGMENTS], [
391 LB_CHECK_COMPILE([if 'blk_queue_max_segments' is defined],
392 blk_queue_max_segments, [
393 #include <linux/blkdev.h>
395 blk_queue_max_segments(NULL, 0);
397 AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
398 [blk_queue_max_segments is defined])
400 ]) # LC_BLK_QUEUE_MAX_SEGMENTS
403 # LC_HAVE_XATTR_HANDLER_FLAGS
405 # 2.6.33 added a private flag to xattr_handler
407 AC_DEFUN([LC_HAVE_XATTR_HANDLER_FLAGS], [
408 LB_CHECK_COMPILE([if 'struct xattr_handler' has flags field],
409 xattr_handler_flags, [
410 #include <linux/xattr.h>
412 struct xattr_handler handler;
416 AC_DEFINE(HAVE_XATTR_HANDLER_FLAGS, 1, [flags field exist])
418 ]) # LC_HAVE_XATTR_HANDLER_FLAGS
421 # LC_HAVE_DQUOT_FS_DISK_QUOTA
423 # 2.6.34 has quotactl_ops->[sg]et_dqblk that take struct fs_disk_quota
425 AC_DEFUN([LC_HAVE_DQUOT_FS_DISK_QUOTA], [
426 tmp_flags="$EXTRA_KCFLAGS"
427 EXTRA_KCFLAGS="-Werror"
428 LB_CHECK_COMPILE([if 'quotactl_ops.set_dqblk' takes struct fs_disk_quota],
430 #include <linux/fs.h>
431 #include <linux/quota.h>
433 ((struct quotactl_ops *)0)->set_dqblk(NULL, 0, 0, (struct fs_disk_quota*)0);
435 AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1,
436 [quotactl_ops.set_dqblk takes struct fs_disk_quota])
438 LB_CHECK_COMPILE([if 'quotactl_ops.set_dqblk' takes struct kqid & fs_disk_quota],
439 kqid_fs_disk_quota, [
440 #include <linux/fs.h>
441 #include <linux/quota.h>
443 ((struct quotactl_ops *)0)->set_dqblk((struct super_block*)0, *((struct kqid*)0), (struct fs_disk_quota*)0);
445 AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1,
446 [quotactl_ops.set_dqblk takes struct fs_disk_quota])
447 AC_DEFINE(HAVE_DQUOT_KQID, 1,
448 [quotactl_ops.set_dqblk takes struct kqid])
451 EXTRA_KCFLAGS="$tmp_flags"
452 ]) # LC_HAVE_DQUOT_FS_DISK_QUOTA
455 # LC_HAVE_DQUOT_SUSPEND
457 # 2.6.34 has renamed dquot options to dquot_*, check for dquot_suspend
459 AC_DEFUN([LC_HAVE_DQUOT_SUSPEND], [
460 LB_CHECK_COMPILE([if 'dquot_suspend' is defined],
462 #include <linux/quotaops.h>
464 dquot_suspend(NULL, -1);
466 AC_DEFINE(HAVE_DQUOT_SUSPEND, 1, [dquot_suspend is defined])
468 ]) # LC_HAVE_DQUOT_SUSPEND
473 # Check if kernel has been patched for 64-bit quota limits support.
474 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
475 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
476 # that in the absence of quotaio_v1.h in the kernel headers.
478 AC_DEFUN([LC_QUOTA64], [
479 tmp_flags="$EXTRA_KCFLAGS"
480 EXTRA_KCFLAGS="-I$LINUX/fs"
481 LB_CHECK_COMPILE([if kernel has 64-bit quota limits support],
483 #include <linux/kernel.h>
484 #include <linux/fs.h>
485 #if defined(HAVE_FS_QUOTA_QUOTAIO_H)
486 #include <quota/quotaio_v2.h>
487 struct v2r1_disk_dqblk dqblk_r1;
489 #include <linux/quota.h>
490 int ver = QFMT_VFS_V1;
493 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
495 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],
496 [AC_MSG_ERROR([You have got no 64-bit kernel quota support.])])
498 EXTRA_KCFLAGS=$tmp_flags
502 # LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE
504 # 2.6.34 adds __add_wait_queue_exclusive
506 AC_DEFUN([LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE], [
507 LB_CHECK_COMPILE([if '__add_wait_queue_exclusive' exists],
508 __add_wait_queue_exclusive, [
509 #include <linux/wait.h>
511 wait_queue_head_t queue;
514 __add_wait_queue_exclusive(&queue, &wait);
516 AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1,
517 [__add_wait_queue_exclusive exists])
519 ]) # LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE
522 # LC_FS_STRUCT_RWLOCK
524 # 2.6.36 fs_struct.lock use spinlock instead of rwlock.
526 AC_DEFUN([LC_FS_STRUCT_RWLOCK], [
527 LB_CHECK_COMPILE([if 'fs_struct.lock' use rwlock],
529 #include <asm/atomic.h>
530 #include <linux/spinlock.h>
531 #include <linux/fs_struct.h>
533 ((struct fs_struct *)0)->lock = (rwlock_t){ 0 };
535 AC_DEFINE(HAVE_FS_STRUCT_RWLOCK, 1, [fs_struct.lock use rwlock])
537 ]) # LC_FS_STRUCT_RWLOCK
540 # LC_SBOPS_EVICT_INODE
542 # 2.6.36 super_operations add evict_inode method. it hybird of
543 # delete_inode & clear_inode.
545 AC_DEFUN([LC_SBOPS_EVICT_INODE], [
546 LB_CHECK_COMPILE([if 'super_operations.evict_inode' exist],
547 super_ops_evict_inode, [
548 #include <linux/fs.h>
550 ((struct super_operations *)0)->evict_inode(NULL);
552 AC_DEFINE(HAVE_SBOPS_EVICT_INODE, 1,
553 [super_operations.evict_inode() is exist in kernel])
555 ]) # LC_SBOPS_EVICT_INODE
560 # 2.6.35 file_operations.fsync taken 2 arguments.
561 # 3.0.0 file_operations.fsync takes 4 arguments.
563 AC_DEFUN([LC_FILE_FSYNC], [
564 LB_CHECK_COMPILE([if 'file_operations.fsync' takes 4 arguments],
565 file_ops_fsync_4args, [
566 #include <linux/fs.h>
568 ((struct file_operations *)0)->fsync(NULL, 0, 0, 0);
570 AC_DEFINE(HAVE_FILE_FSYNC_4ARGS, 1,
571 [file_operations.fsync takes 4 arguments])
573 LB_CHECK_COMPILE([if 'file_operations.fsync' takes 2 arguments],
574 file_ops_fsync_2args, [
575 #include <linux/fs.h>
577 ((struct file_operations *)0)->fsync(NULL, 0);
579 AC_DEFINE(HAVE_FILE_FSYNC_2ARGS, 1,
580 [file_operations.fsync takes 2 arguments])
588 # 2.6.37 remove kernel_locked
590 AC_DEFUN([LC_KERNEL_LOCKED], [
591 LB_CHECK_COMPILE([if 'kernel_locked' is defined],
593 #include <linux/smp_lock.h>
597 AC_DEFINE(HAVE_KERNEL_LOCKED, 1, [kernel_locked is defined])
599 ]) # LC_KERNEL_LOCKED
602 # LC_FS_STRUCT_SEQCOUNT
604 # 2.6.37 uses seqlock in fs_struct
606 AC_DEFUN([LC_FS_STRUCT_SEQCOUNT], [
607 LB_CHECK_COMPILE([if fs_struct use seqcount],
608 fs_struct_seqcount, [
609 #include <linux/fs_struct.h>
611 ((struct fs_struct *)0)->seq = (struct seqcount){ 0 };
613 AC_DEFINE(HAVE_FS_STRUCT_SEQCOUNT, 1, [fs_struct use seqcount])
615 ]) # LC_FS_STRUCT_SEQCOUNT
620 # 2.6.38 dentry_operations.d_compare() taken 7 arguments.
622 AC_DEFUN([LC_D_COMPARE_7ARGS], [
623 LB_CHECK_COMPILE([if 'dentry_operations.d_compare()' taken 7 arguments],
624 dentry_ops_d_compare_7arg, [
625 #include <linux/dcache.h>
627 ((struct dentry_operations*)0)->d_compare(NULL,NULL,NULL,NULL,0,NULL,NULL);
629 AC_DEFINE(HAVE_D_COMPARE_7ARGS, 1, [d_compare need 7 arguments])
631 ]) # LC_D_COMPARE_7ARGS
636 # 2.6.38 dentry_operations.d_delete() defined 'const' for 1st parameter.
638 AC_DEFUN([LC_D_DELETE_CONST], [
639 tmp_flags="$EXTRA_KCFLAGS"
640 EXTRA_KCFLAGS="-Werror"
641 LB_CHECK_COMPILE([if 'dentry_operations.d_delete()' has const declare on first parameter],
642 dentry_ops_d_delete_1st_const, [
643 #include <linux/dcache.h>
645 const struct dentry *d = NULL;
646 ((struct dentry_operations*)0)->d_delete(d);
648 AC_DEFINE(HAVE_D_DELETE_CONST, const,
649 [d_delete first parameter declared const])
651 AC_DEFINE(HAVE_D_DELETE_CONST, [],
652 [d_delete first parameter declared is not const])
654 EXTRA_KCFLAGS="$tmp_flags"
655 ]) # LC_D_DELETE_CONST
660 # 2.6.38 dcache_lock removed. rcu-walk committed.
662 AC_DEFUN([LC_DCACHE_LOCK], [
663 LB_CHECK_COMPILE([if 'dcache_lock' is exist],
665 #include <linux/dcache.h>
667 spin_lock(&dcache_lock);
669 AC_DEFINE(HAVE_DCACHE_LOCK, 1,
670 [dcache_lock is exist])
677 # 2.6.38 inode.i_rcu added.
679 AC_DEFUN([LC_INODE_I_RCU], [
680 LB_CHECK_COMPILE([if 'inode.i_rcu' exists],
682 #include <linux/fs.h>
685 struct rcu_head rcu = {};
688 AC_DEFINE(HAVE_INODE_I_RCU, 1,
689 [inode.i_rcu exists])
694 # LC_BLKDEV_GET_BY_DEV
696 # 2.6.38 export blkdev_get_by_dev
698 AC_DEFUN([LC_BLKDEV_GET_BY_DEV], [
699 LB_CHECK_EXPORT([blkdev_get_by_dev], [fs/block_dev.c],
700 [AC_DEFINE(HAVE_BLKDEV_GET_BY_DEV, 1,
701 [blkdev_get_by_dev is exported by the kernel])])
702 ]) # LC_BLKDEV_GET_BY_DEV
705 # LC_EXPORT_SIMPLE_SETATTR
707 # 2.6.38 export simple_setattr
709 AC_DEFUN([LC_EXPORT_SIMPLE_SETATTR], [
710 LB_CHECK_EXPORT([simple_setattr], [fs/libfs.c],
711 [AC_DEFINE(HAVE_SIMPLE_SETATTR, 1,
712 [simple_setattr is exported by the kernel])])
713 ]) # LC_EXPORT_SIMPLE_SETATTR
718 # 2.6.38 add struct blk_plug
720 AC_DEFUN([LC_HAVE_BLK_PLUG], [
721 LB_CHECK_COMPILE([if 'struct blk_plug' exists],
723 #include <linux/blkdev.h>
725 struct blk_plug plug;
727 blk_start_plug(&plug);
728 blk_finish_plug(&plug);
730 AC_DEFINE(HAVE_BLK_PLUG, 1,
731 [blk_plug struct exists])
733 ]) # LC_HAVE_BLK_PLUG
738 # truncate callback removed since 2.6.39
740 AC_DEFUN([LC_IOP_TRUNCATE], [
741 LB_CHECK_COMPILE([if 'inode_operations' has '.truncate' member function],
742 inode_ops_truncate, [
743 #include <linux/fs.h>
745 ((struct inode_operations *)0)->truncate(NULL);
747 AC_DEFINE(HAVE_INODEOPS_TRUNCATE, 1,
748 [inode_operations has .truncate member function])
753 # LC_HAVE_FSTYPE_MOUNT
755 # 2.6.39 replace get_sb with mount in struct file_system_type
757 AC_DEFUN([LC_HAVE_FSTYPE_MOUNT], [
758 LB_CHECK_COMPILE([if 'file_system_type' has 'mount' field],
759 file_system_type_mount, [
760 #include <linux/fs.h>
762 struct file_system_type fst;
763 void *i = (void *) fst.mount;
765 AC_DEFINE(HAVE_FSTYPE_MOUNT, 1,
766 [struct file_system_type has mount field])
768 ]) # LC_HAVE_FSTYPE_MOUNT
771 # LC_HAVE_FHANDLE_SYSCALLS
773 # 2.6.39 The open_by_handle_at() and name_to_handle_at() system calls were
774 # added to Linux kernel 2.6.39.
775 # Check if client supports these functions
777 AC_DEFUN([LC_HAVE_FHANDLE_SYSCALLS], [
778 LB_CHECK_CONFIG_IM([FHANDLE],[
779 AC_DEFINE(HAVE_FHANDLE_SYSCALLS, 1,
780 [kernel supports fhandles and related syscalls])
782 ]) # LC_HAVE_FHANDLE_SYSCALLS
785 # LC_HAVE_INODE_OWNER_OR_CAPABLE
787 # 2.6.39 renames is_owner_or_cap to inode_owner_or_capable
789 AC_DEFUN([LC_HAVE_INODE_OWNER_OR_CAPABLE], [
790 LB_CHECK_COMPILE([if 'inode_owner_or_capable' exist],
791 inode_owner_or_capable, [
792 #include <linux/fs.h>
794 inode_owner_or_capable(NULL);
796 AC_DEFINE(HAVE_INODE_OWNER_OR_CAPABLE, 1,
797 [inode_owner_or_capable exist])
799 ]) # LC_HAVE_INODE_OWNER_OR_CAPABLE
802 # LC_DIRTY_INODE_WITH_FLAG
804 # 3.0 dirty_inode() has a flag parameter
805 # see kernel commit aa38572954ade525817fe88c54faebf85e5a61c0
807 AC_DEFUN([LC_DIRTY_INODE_WITH_FLAG], [
808 LB_CHECK_COMPILE([if 'dirty_inode' super_operation takes flag],
809 dirty_inode_super_operation_flag, [
810 #include <linux/fs.h>
813 inode->i_sb->s_op->dirty_inode(NULL, 0);
815 AC_DEFINE(HAVE_DIRTY_INODE_HAS_FLAG, 1,
816 [dirty_inode super_operation takes flag])
818 ]) # LC_DIRTY_INODE_WITH_FLAG
823 # 3.0 introduced setns
825 AC_DEFUN([LC_SETNS], [
826 AC_CHECK_HEADERS([sched.h], [], [],
829 AC_CHECK_FUNCS([setns])
833 # LC_GENERIC_PERMISSION
835 # 2.6.38 generic_permission taken 4 parameters.
836 # in fact, it means rcu-walk aware permission bring.
838 # 3.1 generic_permission taken 2 parameters.
839 # see kernel commit 2830ba7f34ebb27c4e5b8b6ef408cd6d74860890
841 AC_DEFUN([LC_GENERIC_PERMISSION], [
842 LB_CHECK_COMPILE([if 'generic_permission' take 2 arguments],
843 generic_permission_2args, [
844 #include <linux/fs.h>
846 generic_permission(NULL, 0);
848 AC_DEFINE(HAVE_GENERIC_PERMISSION_2ARGS, 1,
849 [generic_permission taken 2 arguments])
851 LB_CHECK_COMPILE([if 'generic_permission' take 4 arguments],
852 generic_permission_4args, [
853 #include <linux/fs.h>
855 generic_permission(NULL, 0, 0, NULL);
857 AC_DEFINE(HAVE_GENERIC_PERMISSION_4ARGS, 1,
858 [generic_permission taken 4 arguments])
861 ]) # LC_GENERIC_PERMISSION
864 # LC_LM_XXX_LOCK_MANAGER_OPS
866 # 3.1 renames lock-manager ops(lock_manager_operations) from fl_xxx to lm_xxx
867 # see kernel commit 8fb47a4fbf858a164e973b8ea8ef5e83e61f2e50
869 AC_DEFUN([LC_LM_XXX_LOCK_MANAGER_OPS], [
870 LB_CHECK_COMPILE([if 'lock-manager' ops renamed to 'lm_xxx'],
871 lock_manager_ops_lm_xxx, [
872 #include <linux/fs.h>
874 struct lock_manager_operations lm_ops;
875 lm_ops.lm_compare_owner = NULL;
877 AC_DEFINE(HAVE_LM_XXX_LOCK_MANAGER_OPS, 1,
878 [lock-manager ops renamed to lm_xxx])
880 ]) # LC_LM_XXX_LOCK_MANAGER_OPS
885 # 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait
887 # see kernel commit bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3
889 AC_DEFUN([LC_INODE_DIO_WAIT], [
890 LB_CHECK_COMPILE([if 'inode->i_alloc_sem' is killed and use inode_dio_wait],
892 #include <linux/fs.h>
894 inode_dio_wait((struct inode *)0);
896 AC_DEFINE(HAVE_INODE_DIO_WAIT, 1,
897 [inode->i_alloc_sem is killed and use inode_dio_wait])
899 ]) # LC_INODE_DIO_WAIT
904 # 3.1 adds get_acl method to inode_operations to read ACL from disk.
905 # see kernel commit 4e34e719e457f2e031297175410fc0bd4016a085
907 AC_DEFUN([LC_IOP_GET_ACL], [
908 LB_CHECK_COMPILE([if 'inode_operations' has '.get_acl' member function],
910 #include <linux/fs.h>
912 struct inode_operations iop;
915 AC_DEFINE(HAVE_IOP_GET_ACL, 1,
916 [inode_operations has .get_acl member function])
921 # LC_FILE_LLSEEK_SIZE
923 # 3.1 introduced generic_file_llseek_size()
925 AC_DEFUN([LC_FILE_LLSEEK_SIZE], [
926 LB_CHECK_EXPORT([generic_file_llseek_size], [fs/read_write.c],
927 [AC_DEFINE(HAVE_FILE_LLSEEK_SIZE, 1,
928 [generic_file_llseek_size is exported by the kernel])])
929 ]) # LC_FILE_LLSEEK_SIZE
932 # LC_RADIX_EXCEPTION_ENTRY
933 # 3.1 adds radix_tree_exception_entry.
935 AC_DEFUN([LC_RADIX_EXCEPTION_ENTRY], [
936 LB_CHECK_COMPILE([radix_tree_exceptional_entry exist],
937 radix_tree_exceptional_entry, [
938 #include <linux/radix-tree.h>
940 radix_tree_exceptional_entry(NULL);
942 AC_DEFINE(HAVE_RADIX_EXCEPTION_ENTRY, 1,
943 [radix_tree_exceptional_entry exist])
945 ]) # LC_RADIX_EXCEPTION_ENTRY
948 # LC_HAVE_PROTECT_I_NLINK
950 # 3.2 protects inode->i_nlink from direct modification
951 # see kernel commit a78ef704a8dd430225955f0709b22d4a6ba21deb
952 # at the same time adds set_nlink(), so checks set_nlink() for it.
954 AC_DEFUN([LC_HAVE_PROTECT_I_NLINK], [
955 LB_CHECK_COMPILE([if 'inode->i_nlink' is protected from direct modification],
956 inode_i_nlink_protected, [
957 #include <linux/fs.h>
962 AC_DEFINE(HAVE_PROTECT_I_NLINK, 1,
963 [inode->i_nlink is protected from direct modification])
965 ]) # LC_HAVE_PROTECT_I_NLINK
968 # 2.6.39 security_inode_init_security takes a 'struct qstr' parameter
970 # 3.2 security_inode_init_security takes a callback to set xattrs
972 AC_DEFUN([LC_HAVE_SECURITY_IINITSEC], [
973 LB_CHECK_COMPILE([if security_inode_init_security takes a callback],
974 security_inode_init_security_callback, [
975 #include <linux/security.h>
977 security_inode_init_security(NULL, NULL, NULL, (const initxattrs)NULL, NULL);
979 AC_DEFINE(HAVE_SECURITY_IINITSEC_CALLBACK, 1,
980 [security_inode_init_security takes a callback to set xattrs])
982 LB_CHECK_COMPILE([if security_inode_init_security takes a 'struct qstr' parameter],
983 security_inode_init_security_qstr, [
984 #include <linux/security.h>
986 security_inode_init_security(NULL, NULL, (struct qstr *)NULL, NULL, NULL, NULL);
988 AC_DEFINE(HAVE_SECURITY_IINITSEC_QSTR, 1,
989 [security_inode_init_security takes a 'struct qstr' parameter])
992 ]) # LC_HAVE_SECURITY_IINITSEC
995 # LC_HAVE_MIGRATE_HEADER
997 # 3.3 introduces migrate_mode.h and migratepage has 4 args
999 AC_DEFUN([LC_HAVE_MIGRATE_HEADER], [
1000 LB_CHECK_FILE([$LINUX/include/linux/migrate.h], [
1001 AC_DEFINE(HAVE_MIGRATE_H, 1,
1002 [kernel has include/linux/migrate.h])
1004 LB_CHECK_FILE([$LINUX/include/linux/migrate_mode.h], [
1005 AC_DEFINE(HAVE_MIGRATE_MODE_H, 1,
1006 [kernel has include/linux/migrate_mode.h])
1009 ]) # LC_HAVE_MIGRATE_HEADER
1012 # LC_MIGRATEPAGE_4ARGS
1014 AC_DEFUN([LC_MIGRATEPAGE_4ARGS], [
1015 LB_CHECK_COMPILE([if 'address_space_operations.migratepage' has 4 args],
1016 address_space_ops_migratepage_4args, [
1017 #include <linux/fs.h>
1018 #ifdef HAVE_MIGRATE_H
1019 #include <linux/migrate.h>
1020 #elif defined(HAVE_MIGRATE_MODE_H)
1021 #include <linux/migrate_mode.h>
1024 struct address_space_operations aops;
1025 aops.migratepage(NULL, NULL, NULL, MIGRATE_ASYNC);
1027 AC_DEFINE(HAVE_MIGRATEPAGE_4ARGS, 1,
1028 [address_space_operations.migratepage has 4 args])
1030 ]) # LC_MIGRATEPAGE_4ARGS
1033 # LC_SUPEROPS_USE_DENTRY
1035 # 3.3 switchs super_operations to use dentry as parameter (but not vfsmount)
1036 # see kernel commit 34c80b1d93e6e20ca9dea0baf583a5b5510d92d4
1038 AC_DEFUN([LC_SUPEROPS_USE_DENTRY], [
1039 tmp_flags="$EXTRA_KCFLAGS"
1040 EXTRA_KCFLAGS="-Werror"
1041 LB_CHECK_COMPILE([if 'super_operations' use 'dentry' as parameter],
1043 #include <linux/fs.h>
1044 int show_options(struct seq_file *seq, struct dentry *root) {
1048 struct super_operations ops;
1049 ops.show_options = show_options;
1051 AC_DEFINE(HAVE_SUPEROPS_USE_DENTRY, 1,
1052 [super_operations use dentry as parameter])
1054 EXTRA_KCFLAGS="$tmp_flags"
1055 ]) # LC_SUPEROPS_USE_DENTRY
1058 # LC_INODEOPS_USE_UMODE_T
1060 # 3.3 switchs inode_operations to use umode_t as parameter (but not int)
1061 # see kernel commit 1a67aafb5f72a436ca044293309fa7e6351d6a35
1063 AC_DEFUN([LC_INODEOPS_USE_UMODE_T], [
1064 tmp_flags="$EXTRA_KCFLAGS"
1065 EXTRA_KCFLAGS="-Werror"
1066 LB_CHECK_COMPILE([if 'inode_operations' use 'umode_t' as parameter],
1067 inode_ops_umode_t, [
1068 #include <linux/fs.h>
1069 #include <linux/types.h>
1070 int my_mknod(struct inode *dir, struct dentry *dchild,
1071 umode_t mode, dev_t dev)
1076 struct inode_operations ops;
1077 ops.mknod = my_mknod;
1079 AC_DEFINE(HAVE_INODEOPS_USE_UMODE_T, 1,
1080 [inode_operations use umode_t as parameter])
1082 EXTRA_KCFLAGS="$tmp_flags"
1083 ]) # LC_INODEOPS_USE_UMODE_T
1086 # LC_KMAP_ATOMIC_HAS_1ARG
1088 # 3.4 kmap_atomic removes second argument
1089 # see kernel commit 1ec9c5ddc17aa398f05646abfcbaf315b544e62f
1091 AC_DEFUN([LC_KMAP_ATOMIC_HAS_1ARG], [
1092 LB_CHECK_COMPILE([if 'kmap_atomic' has only 1 argument],
1094 #include <linux/highmem.h>
1098 AC_DEFINE(HAVE_KMAP_ATOMIC_HAS_1ARG, 1,
1099 [have kmap_atomic has only 1 argument])
1101 ]) # LC_KMAP_ATOMIC_HAS_1ARG
1104 # LC_HAVE_D_MAKE_ROOT
1106 # 3.4 converts d_alloc_root to d_make_root
1107 # see kernel commit 32991ab305ace7017c62f8eecbe5eb36dc32e13b
1109 AC_DEFUN([LC_HAVE_D_MAKE_ROOT], [
1110 LB_CHECK_COMPILE([if have 'd_make_root'],
1112 #include <linux/fs.h>
1114 d_make_root((struct inode *)NULL);
1116 AC_DEFINE(HAVE_D_MAKE_ROOT, 1,
1119 ]) # LC_HAVE_D_MAKE_ROOT
1122 # LC_HAVE_CACHE_REGISTER
1124 # 3.4 cache_register/cache_unregister are removed
1125 # see kernel commit 2c5f846747526e2b83c5f1b8e69016be0e2e87c0
1126 # Note, since 2.6.37 cache_register_net/cache_unregister_net
1127 # are defined, but not exported.
1128 # 3.3 cache_register_net/cache_unregister_net are
1129 # exported and replacing cache_register/cache_unregister in 3.4
1131 AC_DEFUN([LC_HAVE_CACHE_REGISTER], [
1132 LB_CHECK_COMPILE([if have 'cache_register'],
1134 #include <linux/sunrpc/cache.h>
1136 cache_register(NULL);
1138 AC_DEFINE(HAVE_CACHE_REGISTER, 1,
1139 [have cache_register])
1141 ]) # LC_HAVE_CACHE_REGISTER
1144 # LC_HAVE_CLEAR_INODE
1146 # 3.5 renames end_writeback() back to clear_inode()...
1147 # see kernel commit dbd5768f87ff6fb0a4fe09c4d7b6c4a24de99430
1149 AC_DEFUN([LC_HAVE_CLEAR_INODE], [
1150 LB_CHECK_COMPILE([if have 'clear_inode'],
1152 #include <linux/fs.h>
1154 clear_inode((struct inode *)NULL);
1156 AC_DEFINE(HAVE_CLEAR_INODE, 1,
1159 ]) # LC_HAVE_CLEAR_INODE
1162 # LC_HAVE_ENCODE_FH_PARENT
1164 # 3.5 encode_fh has parent inode passed in directly
1165 # see kernel commit b0b0382b
1167 AC_DEFUN([LC_HAVE_ENCODE_FH_PARENT], [
1168 tmp_flags="$EXTRA_KCFLAGS"
1169 EXTRA_KCFLAGS="-Werror"
1170 LB_CHECK_COMPILE([if 'encode_fh' have parent inode as parameter],
1171 encode_fh_parent_inode, [
1172 #include <linux/exportfs.h>
1173 #include <linux/fs.h>
1174 #include <linux/types.h>
1175 int ll_encode_fh(struct inode *i, __u32 *a, int *b, struct inode *p)
1180 struct export_operations exp_op;
1181 exp_op.encode_fh = ll_encode_fh;
1183 AC_DEFINE(HAVE_ENCODE_FH_PARENT, 1,
1184 [have parent inode as parameter])
1186 EXTRA_KCFLAGS="$tmp_flags"
1187 ]) # LC_HAVE_ENCODE_FH_PARENT
1190 # LC_FILE_LLSEEK_SIZE_5ARG
1192 # 3.5 has generic_file_llseek_size with 5 args
1194 AC_DEFUN([LC_FILE_LLSEEK_SIZE_5ARG], [
1195 LB_CHECK_COMPILE([if Linux kernel has 'generic_file_llseek_size' with 5 args],
1196 generic_file_llseek_size_5args, [
1197 #include <linux/fs.h>
1199 generic_file_llseek_size(NULL, 0, 0, 0, 0);
1201 AC_DEFINE(HAVE_FILE_LLSEEK_SIZE_5ARGS, 1,
1202 [kernel has generic_file_llseek_size with 5 args])
1204 ]) # LC_FILE_LLSEEK_SIZE_5ARG
1207 # LC_LLITE_DATA_IS_LIST
1209 # 3.6 switch i_dentry/d_alias from list to hlist
1211 # In the upstream kernels d_alias first changes
1212 # to a hlist and then in later version, 3.11, gets
1213 # moved to the union d_u. Due to some distros having
1214 # d_alias in the d_u union as a struct list, which
1215 # has never existed upstream stream, we can't test
1216 # if d_alias is a list or hlist directly. If ever
1217 # i_dentry and d_alias even up different combos then
1218 # the build will fail. In that case then we will need
1219 # to separate out the i_dentry and d_alias test below.
1221 AC_DEFUN([LC_DATA_FOR_LLITE_IS_LIST], [
1222 tmp_flags="$EXTRA_KCFLAGS"
1223 EXTRA_KCFLAGS="-Werror"
1224 LB_CHECK_COMPILE([if 'i_dentry/d_alias' uses 'list'],
1225 i_dentry_d_alias_list, [
1226 #include <linux/fs.h>
1229 INIT_LIST_HEAD(&inode.i_dentry);
1231 AC_DEFINE(DATA_FOR_LLITE_IS_LIST, 1,
1232 [both i_dentry/d_alias uses list])
1234 EXTRA_KCFLAGS="$tmp_flags"
1235 ]) # LC_DATA_FOR_LLITE_IS_LIST
1238 # LC_DENTRY_OPEN_USE_PATH
1240 # 3.6 dentry_open uses struct path as first argument
1241 # see kernel commit 765927b2
1243 AC_DEFUN([LC_DENTRY_OPEN_USE_PATH], [
1244 tmp_flags="$EXTRA_KCFLAGS"
1245 EXTRA_KCFLAGS="-Werror"
1246 LB_CHECK_COMPILE([if 'dentry_open' uses 'struct path' as first argument],
1248 #include <linux/fs.h>
1249 #include <linux/path.h>
1252 dentry_open(&path, 0, NULL);
1254 AC_DEFINE(HAVE_DENTRY_OPEN_USE_PATH, 1,
1255 [dentry_open uses struct path as first argument])
1257 EXTRA_KCFLAGS="$tmp_flags"
1258 ]) # LC_DENTRY_OPEN_USE_PATH
1261 # LC_HAVE_IOP_ATOMIC_OPEN
1263 # 3.6 vfs adds iop->atomic_open
1265 AC_DEFUN([LC_HAVE_IOP_ATOMIC_OPEN], [
1266 LB_CHECK_COMPILE([if 'iop' has 'atomic_open'],
1267 inode_ops_atomic_open, [
1268 #include <linux/fs.h>
1270 struct inode_operations iop;
1271 iop.atomic_open = NULL;
1273 AC_DEFINE(HAVE_IOP_ATOMIC_OPEN, 1,
1274 [have iop atomic_open])
1276 ]) # LC_HAVE_IOP_ATOMIC_OPEN
1279 # LC_HAVE_SB_START_WRITE
1281 # RHEL6 2.6.32, 3.6 or newer support wrapped FS freeze functions
1283 AC_DEFUN([LC_HAVE_SB_START_WRITE], [
1284 LB_CHECK_COMPILE([if kernel supports wrapped FS freeze functions],
1286 #include <linux/fs.h>
1288 sb_start_write(NULL);
1290 AC_DEFINE(HAVE_SB_START_WRITE, 1,
1291 [kernel supports wrapped FS freeze functions])
1293 ]) # LC_HAVE_SB_START_WRITE
1296 # LC_HAVE_POSIXACL_USER_NS
1298 # 3.7 posix_acl_{to,from}_xattr take struct user_namespace
1300 AC_DEFUN([LC_HAVE_POSIXACL_USER_NS], [
1301 LB_CHECK_COMPILE([if 'posix_acl_to_xattr' takes 'struct user_namespace'],
1302 posix_acl_to_xattr_user_namespace, [
1303 #include <linux/fs.h>
1304 #include <linux/posix_acl_xattr.h>
1306 posix_acl_to_xattr((struct user_namespace *)NULL, NULL, NULL, 0);
1308 AC_DEFINE(HAVE_POSIXACL_USER_NS, 1,
1309 [posix_acl_to_xattr takes struct user_namespace])
1311 ]) # LC_HAVE_POSIXACL_USER_NS
1314 # LC_HAVE_FILE_F_INODE
1316 # 3.8 struct file has new member f_inode
1318 AC_DEFUN([LC_HAVE_FILE_F_INODE], [
1319 LB_CHECK_COMPILE([if 'struct file' has member 'f_inode'],
1321 #include <linux/fs.h>
1323 ((struct file *)0)->f_inode = NULL;
1325 AC_DEFINE(HAVE_FILE_F_INODE, 1,
1326 [struct file has member f_inode])
1328 ]) # LC_HAVE_FILE_F_INODE
1331 # LC_HAVE_FILE_INODE
1333 # 3.8 has introduced inline function file_inode
1335 AC_DEFUN([LC_HAVE_FILE_INODE], [
1336 LB_CHECK_COMPILE([if file_inode() exists],
1338 #include <linux/fs.h>
1342 AC_DEFINE(HAVE_FILE_INODE, 1,
1343 [file_inode() has been defined])
1345 ]) # LC_HAVE_FILE_INODE
1348 # LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
1350 AC_DEFUN([LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS], [
1351 LB_CHECK_COMPILE([if 'sunrpc_cache_pipe_upcall' takes 3 args],
1352 sunrpc_cache_pipe_upcall_3args, [
1353 #include <linux/sunrpc/cache.h>
1355 sunrpc_cache_pipe_upcall(NULL, NULL, NULL);
1357 AC_DEFINE(HAVE_SUNRPC_UPCALL_HAS_3ARGS, 1,
1358 [sunrpc_cache_pipe_upcall takes 3 args])
1360 ]) # LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
1363 # LC_HAVE_HLIST_FOR_EACH_3ARG
1365 # 3.9 uses hlist_for_each_entry with 3 args
1366 # b67bfe0d42cac56c512dd5da4b1b347a23f4b70a
1368 AC_DEFUN([LC_HAVE_HLIST_FOR_EACH_3ARG], [
1369 LB_CHECK_COMPILE([if 'hlist_for_each_entry' has 3 args],
1370 hlist_for_each_entry_3args, [
1371 #include <linux/list.h>
1372 #include <linux/fs.h>
1374 struct hlist_head *head = NULL;
1375 struct inode *inode;
1377 hlist_for_each_entry(inode, head, i_hash) {
1381 AC_DEFINE(HAVE_HLIST_FOR_EACH_3ARG, 1,
1382 [hlist_for_each_entry has 3 args])
1384 ]) # LC_HAVE_HLIST_FOR_EACH_3ARG
1387 # LC_HAVE_BIO_END_SECTOR
1389 # 3.9 introduces bio_end_sector macro
1390 # f73a1c7d117d07a96d89475066188a2b79e53c48
1392 AC_DEFUN([LC_HAVE_BIO_END_SECTOR], [
1393 LB_CHECK_COMPILE([if 'bio_end_sector' is defined],
1395 #include <linux/bio.h>
1399 bio_end_sector(&bio);
1401 AC_DEFINE(HAVE_BIO_END_SECTOR, 1,
1402 [bio_end_sector is defined])
1404 ]) # LC_HAVE_BIO_END_SECTOR
1407 # 3.9 created is_sxid
1409 AC_DEFUN([LC_HAVE_IS_SXID], [
1410 LB_CHECK_COMPILE([if 'is_sxid' is defined],
1412 #include <linux/fs.h>
1416 is_sxid(inode.i_mode);
1418 AC_DEFINE(HAVE_IS_SXID, 1, [is_sxid is defined])
1420 ]) # LC_HAVE_IS_SXID
1423 # LC_HAVE_REMOVE_PROC_SUBTREE
1425 # 3.10 introduced remove_proc_subtree
1427 AC_DEFUN([LC_HAVE_REMOVE_PROC_SUBTREE], [
1428 LB_CHECK_COMPILE([if 'remove_proc_subtree' is defined],
1429 remove_proc_subtree, [
1430 #include <linux/proc_fs.h>
1432 remove_proc_subtree(NULL, NULL);
1434 AC_DEFINE(HAVE_REMOVE_PROC_SUBTREE, 1,
1435 [remove_proc_subtree is defined])
1437 ]) # LC_HAVE_REMOVE_PROC_SUBTREE
1440 # LC_HAVE_PROC_REMOVE
1442 # 3.10 introduced proc_remove
1444 AC_DEFUN([LC_HAVE_PROC_REMOVE], [
1445 LB_CHECK_COMPILE([if 'proc_remove' is defined],
1447 #include <linux/proc_fs.h>
1451 AC_DEFINE(HAVE_PROC_REMOVE, 1,
1452 [proc_remove is defined])
1454 ]) # LC_HAVE_PROC_REMOVE
1456 AC_DEFUN([LC_HAVE_PROJECT_QUOTA], [
1457 LB_CHECK_COMPILE([if get_projid exists],
1459 #include <linux/quota.h>
1461 struct dquot_operations ops;
1463 ops.get_projid(NULL, NULL);
1465 AC_DEFINE(HAVE_PROJECT_QUOTA, 1,
1466 [get_projid function exists])
1468 ]) # LC_HAVE_PROJECT_QUOTA
1472 # LC_HAVE_SECURITY_DENTRY_INIT_SECURITY
1474 # 3.10 introduced security_dentry_init_security()
1476 AC_DEFUN([LC_HAVE_SECURITY_DENTRY_INIT_SECURITY], [
1477 LB_CHECK_COMPILE([if 'security_dentry_init_security' is defined],
1478 security_dentry_init_security, [
1479 #include <linux/security.h>
1481 security_dentry_init_security(NULL, 0, NULL, NULL, NULL);
1483 AC_DEFINE(HAVE_SECURITY_DENTRY_INIT_SECURITY, 1,
1484 [security_dentry_init_security' is defined])
1486 ]) # LC_HAVE_SECURITY_DENTRY_INIT_SECURITY
1489 # LC_INVALIDATE_RANGE
1491 # 3.11 invalidatepage requires the length of the range to invalidate
1493 AC_DEFUN([LC_INVALIDATE_RANGE], [
1494 LB_CHECK_COMPILE([if 'address_space_operations.invalidatepage' requires 3 arguments],
1495 address_space_ops_invalidatepage_3args, [
1496 #include <linux/fs.h>
1498 struct address_space_operations a_ops;
1499 a_ops.invalidatepage(NULL, 0, 0);
1501 AC_DEFINE(HAVE_INVALIDATE_RANGE, 1,
1502 [address_space_operations.invalidatepage needs 3 arguments])
1504 ]) # LC_INVALIDATE_RANGE
1507 # LC_HAVE_DIR_CONTEXT
1509 # 3.11 readdir now takes the new struct dir_context
1511 AC_DEFUN([LC_HAVE_DIR_CONTEXT], [
1512 LB_CHECK_COMPILE([if 'dir_context' exist],
1514 #include <linux/fs.h>
1516 #ifdef FMODE_KABI_ITERATE
1517 #error "back to use readdir in kabi_extand mode"
1519 struct dir_context ctx;
1523 AC_DEFINE(HAVE_DIR_CONTEXT, 1,
1524 [dir_context exist])
1526 ]) # LC_HAVE_DIR_CONTEXT
1529 # LC_D_COMPARE_5ARGS
1531 # 3.11 dentry_operations.d_compare() taken 5 arguments.
1533 AC_DEFUN([LC_D_COMPARE_5ARGS], [
1534 LB_CHECK_COMPILE([if 'd_compare' taken 5 arguments],
1536 #include <linux/dcache.h>
1538 ((struct dentry_operations*)0)->d_compare(NULL,NULL,0,NULL,NULL);
1540 AC_DEFINE(HAVE_D_COMPARE_5ARGS, 1,
1541 [d_compare need 5 arguments])
1543 ]) # LC_D_COMPARE_5ARGS
1548 # 3.11 need to access d_count to get dentry reference count
1550 AC_DEFUN([LC_HAVE_DCOUNT], [
1551 LB_CHECK_COMPILE([if 'd_count' exist],
1553 #include <linux/dcache.h>
1558 AC_DEFINE(HAVE_D_COUNT, 1,
1564 # LC_PID_NS_FOR_CHILDREN
1566 # 3.11 replaces pid_ns by pid_ns_for_children in struct nsproxy
1568 AC_DEFUN([LC_PID_NS_FOR_CHILDREN], [
1569 LB_CHECK_COMPILE([if 'struct nsproxy' has 'pid_ns_for_children'],
1570 pid_ns_for_children, [
1571 #include <linux/nsproxy.h>
1574 ns.pid_ns_for_children = NULL;
1576 AC_DEFINE(HAVE_PID_NS_FOR_CHILDREN, 1,
1577 ['struct nsproxy' has 'pid_ns_for_children'])
1579 ]) # LC_PID_NS_FOR_CHILDREN
1582 # LC_OLDSIZE_TRUNCATE_PAGECACHE
1584 # 3.12 truncate_pagecache without oldsize parameter
1586 AC_DEFUN([LC_OLDSIZE_TRUNCATE_PAGECACHE], [
1587 LB_CHECK_COMPILE([if 'truncate_pagecache' with 'old_size' parameter],
1588 truncate_pagecache_old_size, [
1589 #include <linux/mm.h>
1591 truncate_pagecache(NULL, 0, 0);
1593 AC_DEFINE(HAVE_OLDSIZE_TRUNCATE_PAGECACHE, 1,
1596 ]) # LC_OLDSIZE_TRUNCATE_PAGECACHE
1599 # LC_PTR_ERR_OR_ZERO
1601 # For some reason SLES11SP4 is missing the PTR_ERR_OR_ZERO macro
1602 # It was added to linux kernel 3.12
1604 AC_DEFUN([LC_PTR_ERR_OR_ZERO_MISSING], [
1605 LB_CHECK_COMPILE([if 'PTR_ERR_OR_ZERO' is missing],
1607 #include <linux/err.h>
1609 if (PTR_ERR_OR_ZERO(NULL)) return 0;
1611 AC_DEFINE(HAVE_PTR_ERR_OR_ZERO, 1,
1612 ['PTR_ERR_OR_ZERO' exist])
1614 ]) # LC_PTR_ERR_OR_ZERO_MISSING
1617 # LC_HAVE_DENTRY_D_U_D_ALIAS
1619 # 3.11 kernel moved d_alias to the union d_u in struct dentry
1621 # Some distros move d_alias to d_u but it is still a struct list
1623 AC_DEFUN([LC_HAVE_DENTRY_D_U_D_ALIAS], [
1624 AS_IF([test "x$lb_cv_compile_i_dentry_d_alias_list" = xyes], [
1625 LB_CHECK_COMPILE([if list 'dentry.d_u.d_alias' exist],
1627 #include <linux/list.h>
1628 #include <linux/dcache.h>
1631 INIT_LIST_HEAD(&de.d_u.d_alias);
1633 AC_DEFINE(HAVE_DENTRY_D_U_D_ALIAS, 1,
1634 [list dentry.d_u.d_alias exist])
1637 LB_CHECK_COMPILE([if hlist 'dentry.d_u.d_alias' exist],
1639 #include <linux/list.h>
1640 #include <linux/dcache.h>
1643 INIT_HLIST_NODE(&de.d_u.d_alias);
1645 AC_DEFINE(HAVE_DENTRY_D_U_D_ALIAS, 1,
1646 [hlist dentry.d_u.d_alias exist])
1649 ]) # LC_HAVE_DENTRY_D_U_D_ALIAS
1652 # LC_HAVE_DENTRY_D_CHILD
1654 # 3.11 kernel d_child has been moved out of the union d_u
1657 AC_DEFUN([LC_HAVE_DENTRY_D_CHILD], [
1658 LB_CHECK_COMPILE([if 'dentry.d_child' exist],
1660 #include <linux/list.h>
1661 #include <linux/dcache.h>
1664 INIT_LIST_HEAD(&de.d_child);
1666 AC_DEFINE(HAVE_DENTRY_D_CHILD, 1,
1667 [dentry.d_child exist])
1669 ]) # LC_HAVE_DENTRY_D_CHILD
1674 # 3.12 ki_left removed from struct kiocb
1676 AC_DEFUN([LC_KIOCB_KI_LEFT], [
1677 LB_CHECK_COMPILE([if 'struct kiocb' with 'ki_left' member],
1679 #include <linux/aio.h>
1681 ((struct kiocb*)0)->ki_left = 0;
1683 AC_DEFINE(HAVE_KIOCB_KI_LEFT, 1,
1686 ]) # LC_KIOCB_KI_LEFT
1689 # LC_VFS_RENAME_5ARGS
1691 # 3.13 has vfs_rename with 5 args
1693 AC_DEFUN([LC_VFS_RENAME_5ARGS], [
1694 LB_CHECK_COMPILE([if Linux kernel has 'vfs_rename' with 5 args],
1696 #include <linux/fs.h>
1698 vfs_rename(NULL, NULL, NULL, NULL, NULL);
1700 AC_DEFINE(HAVE_VFS_RENAME_5ARGS, 1,
1701 [kernel has vfs_rename with 5 args])
1703 ]) # LC_VFS_RENAME_5ARGS
1706 # LC_VFS_UNLINK_3ARGS
1708 # 3.13 has vfs_unlink with 3 args
1710 AC_DEFUN([LC_VFS_UNLINK_3ARGS], [
1711 LB_CHECK_COMPILE([if Linux kernel has 'vfs_unlink' with 3 args],
1713 #include <linux/fs.h>
1715 vfs_unlink(NULL, NULL, NULL);
1717 AC_DEFINE(HAVE_VFS_UNLINK_3ARGS, 1,
1718 [kernel has vfs_unlink with 3 args])
1720 ]) # LC_VFS_UNLINK_3ARGS
1725 # 3.14 move some of its data in struct bio into the new
1728 AC_DEFUN([LC_HAVE_BVEC_ITER], [
1729 LB_CHECK_COMPILE([if Linux kernel has struct bvec_iter],
1731 #include <linux/bio.h>
1733 struct bvec_iter iter;
1734 iter.bi_bvec_done = 0;
1736 AC_DEFINE(HAVE_BVEC_ITER, 1,
1737 [kernel has struct bvec_iter])
1739 ]) # LC_HAVE_BVEC_ITER
1744 # 3.14 adds set_acl method to inode_operations
1745 # see kernel commit 893d46e443346370cd4ea81d9d35f72952c62a37
1747 AC_DEFUN([LC_IOP_SET_ACL], [
1748 LB_CHECK_COMPILE([if 'inode_operations' has '.set_acl' member function],
1749 inode_ops_set_acl, [
1750 #include <linux/fs.h>
1752 struct inode_operations iop;
1755 AC_DEFINE(HAVE_IOP_SET_ACL, 1,
1756 [inode_operations has .set_acl member function])
1763 # 4.4 redefined bi_cnt as __bi_cnt
1765 AC_DEFUN([LC_HAVE_BI_CNT], [
1766 LB_CHECK_COMPILE([if Linux kernel has bi_cnt in struct bio],
1768 #include <asm/atomic.h>
1769 #include <linux/bio.h>
1773 cnt = atomic_read(&bio.bi_cnt);
1775 AC_DEFINE(HAVE_BI_CNT, 1,
1776 [struct bio has bi_cnt])
1783 # 4.4 redefined bi_rw as bi_opf
1785 AC_DEFUN([LC_HAVE_BI_RW], [
1786 LB_CHECK_COMPILE([if Linux kernel has bi_rw in struct bio],
1788 #include <linux/bio.h>
1793 AC_DEFINE(HAVE_BI_RW, 1,
1794 [struct bio has bi_rw])
1799 # LC_HAVE_SUBMIT_BIO_2ARGS
1801 # 4.4 removed an argument from submit_bio
1803 AC_DEFUN([LC_HAVE_SUBMIT_BIO_2ARGS], [
1804 LB_CHECK_COMPILE([if submit_bio takes two arguments],
1805 have_submit_bio_2args, [
1806 #include <linux/bio.h>
1809 submit_bio(READ, &bio);
1811 AC_DEFINE(HAVE_SUBMIT_BIO_2ARGS, 1,
1812 [submit_bio takes two arguments])
1814 ]) # LC_HAVE_SUBMIT_BIO_2_ARGS
1817 # LC_HAVE_CLEAN_BDEV_ALIASES
1819 # 4.4 unmap_underlying_metadata was replaced by clean_bdev_aliases
1821 AC_DEFUN([LC_HAVE_CLEAN_BDEV_ALIASES], [
1822 LB_CHECK_COMPILE([if kernel has clean_bdev_aliases],
1823 have_clean_bdev_aliases, [
1824 #include <linux/buffer_head.h>
1826 struct block_device bdev;
1827 clean_bdev_aliases(&bdev,1,1);
1829 AC_DEFINE(HAVE_CLEAN_BDEV_ALIASES, 1,
1830 [kernel has clean_bdev_aliases])
1832 ]) # LC_HAVE_CLEAN_BDEV_ALIASES
1835 # LC_HAVE_TRUNCATE_IPAGE_FINAL
1837 # 3.14 bring truncate_inode_pages_final for evict_inode
1839 AC_DEFUN([LC_HAVE_TRUNCATE_IPAGES_FINAL], [
1840 LB_CHECK_COMPILE([if Linux kernel has truncate_inode_pages_final],
1841 truncate_ipages_final, [
1842 #include <linux/mm.h>
1844 truncate_inode_pages_final(NULL);
1846 AC_DEFINE(HAVE_TRUNCATE_INODE_PAGES_FINAL, 1,
1847 [kernel has truncate_inode_pages_final])
1849 ]) # LC_HAVE_TRUNCATE_IPAGES_FINAL
1852 # LC_IOPS_RENAME_WITH_FLAGS
1854 # 3.14 has inode_operations->rename with 5 args
1855 # commit 520c8b16505236fc82daa352e6c5e73cd9870cff
1857 AC_DEFUN([LC_IOPS_RENAME_WITH_FLAGS], [
1858 LB_CHECK_COMPILE([if 'inode_operations->rename' taken flags as argument],
1859 iops_rename_with_flags, [
1860 #include <linux/fs.h>
1862 struct inode *i1 = NULL, *i2 = NULL;
1863 struct dentry *d1 = NULL, *d2 = NULL;
1865 rc = ((struct inode_operations *)0)->rename(i1, d1, i2, d2, 0);
1867 AC_DEFINE(HAVE_IOPS_RENAME_WITH_FLAGS, 1,
1868 [inode_operations->rename need flags as argument])
1870 ]) # LC_IOPS_RENAME_WITH_FLAGS
1873 # LC_VFS_RENAME_6ARGS
1875 # 3.15 has vfs_rename with 6 args
1877 AC_DEFUN([LC_VFS_RENAME_6ARGS], [
1878 LB_CHECK_COMPILE([if Linux kernel has 'vfs_rename' with 6 args],
1880 #include <linux/fs.h>
1882 vfs_rename(NULL, NULL, NULL, NULL, NULL, NULL);
1884 AC_DEFINE(HAVE_VFS_RENAME_6ARGS, 1,
1885 [kernel has vfs_rename with 6 args])
1887 ]) # LC_VFS_RENAME_6ARGS
1890 # LC_DIRECTIO_USE_ITER
1892 # 3.16 kernel changes direct IO to use iov_iter
1894 AC_DEFUN([LC_DIRECTIO_USE_ITER], [
1895 LB_CHECK_COMPILE([if direct IO uses iov_iter],
1897 #include <linux/fs.h>
1899 struct address_space_operations ops;
1900 struct iov_iter *iter = NULL;
1903 ops.direct_IO(0, NULL, iter, offset);
1905 AC_DEFINE(HAVE_DIRECTIO_ITER, 1,
1906 [direct IO uses iov_iter])
1908 ]) # LC_DIRECTIO_USE_ITER
1911 # LC_HAVE_IOV_ITER_INIT_DIRECTION
1914 # 3.16 linux commit 71d8e532b1549a478e6a6a8a44f309d050294d00
1915 # changed iov_iter_init api to start accepting a tag
1916 # that defines if its a read or write operation
1918 AC_DEFUN([LC_HAVE_IOV_ITER_INIT_DIRECTION], [
1919 tmp_flags="$EXTRA_KCFLAGS"
1920 EXTRA_KCFLAGS="-Werror"
1921 LB_CHECK_COMPILE([if 'iov_iter_init' takes a tag],
1923 #include <linux/uio.h>
1924 #include <linux/fs.h>
1926 const struct iovec *iov = NULL;
1928 iov_iter_init(NULL, READ, iov, 1, 0);
1930 AC_DEFINE(HAVE_IOV_ITER_INIT_DIRECTION, 1,
1931 [iov_iter_init handles directional tag])
1933 EXTRA_KCFLAGS="$tmp_flags"
1934 ]) # LC_HAVE_IOV_ITER_INIT_DIRECTION
1937 # LC_HAVE_IOV_ITER_TRUNCATE
1940 # 3.16 introduces a new API iov_iter_truncate()
1942 AC_DEFUN([LC_HAVE_IOV_ITER_TRUNCATE], [
1943 tmp_flags="$EXTRA_KCFLAGS"
1944 EXTRA_KCFLAGS="-Werror"
1945 LB_CHECK_COMPILE([if 'iov_iter_truncate' exists ],
1947 #include <linux/uio.h>
1948 #include <linux/fs.h>
1950 struct iov_iter *i = NULL;
1952 iov_iter_truncate(i, 0);
1954 AC_DEFINE(HAVE_IOV_ITER_TRUNCATE, 1, [iov_iter_truncate exists])
1956 EXTRA_KCFLAGS="$tmp_flags"
1957 ]) # LC_HAVE_IOV_ITER_TRUNCATE
1960 # LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
1962 # 3.16 introduces [read|write]_iter to struct file_operations
1964 AC_DEFUN([LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER], [
1965 LB_CHECK_COMPILE([if 'file_operations.[read|write]_iter' exist],
1966 file_function_iter, [
1967 #include <linux/fs.h>
1969 ((struct file_operations *)NULL)->read_iter(NULL, NULL);
1970 ((struct file_operations *)NULL)->write_iter(NULL, NULL);
1972 AC_DEFINE(HAVE_FILE_OPERATIONS_READ_WRITE_ITER, 1,
1973 [file_operations.[read|write]_iter functions exist])
1975 ]) # LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
1980 # 3.17 replaces key_type::match with match_preparse
1981 # and has new struct key_match_data
1983 AC_DEFUN([LC_KEY_MATCH_DATA], [
1984 LB_CHECK_COMPILE([if struct key_match field exist],
1986 #include <linux/key-type.h>
1988 struct key_match_data data;
1990 AC_DEFINE(HAVE_KEY_MATCH_DATA, 1,
1991 [struct key_match_data exist])
1993 ]) # LC_KEY_MATCH_DATA
1996 # LC_NFS_FILLDIR_USE_CTX
1998 # 3.18 kernel moved from void cookie to struct dir_context
2000 AC_DEFUN([LC_NFS_FILLDIR_USE_CTX], [
2001 tmp_flags="$EXTRA_KCFLAGS"
2002 EXTRA_KCFLAGS="-Werror"
2003 LB_CHECK_COMPILE([if filldir_t uses struct dir_context],
2005 #include <linux/fs.h>
2007 int filldir(struct dir_context *ctx, const char* name,
2008 int i, loff_t off, u64 tmp, unsigned temp)
2013 struct dir_context ctx = {
2017 ctx.actor(NULL, "test", 0, (loff_t) 0, 0, 0);
2019 AC_DEFINE(HAVE_FILLDIR_USE_CTX, 1,
2020 [filldir_t needs struct dir_context as argument])
2022 EXTRA_KCFLAGS="$tmp_flags"
2023 ]) # LC_NFS_FILLDIR_USE_CTX
2026 # LC_PERCPU_COUNTER_INIT
2028 # 3.18 For kernels 3.18 and after percpu_counter_init starts
2029 # to pass a GFP_* memory allocation flag for internal
2030 # memory allocation purposes.
2032 AC_DEFUN([LC_PERCPU_COUNTER_INIT], [
2033 LB_CHECK_COMPILE([if percpu_counter_init uses GFP_* flag as argument],
2034 percpu_counter_init, [
2035 #include <linux/percpu_counter.h>
2037 percpu_counter_init(NULL, 0, GFP_KERNEL);
2039 AC_DEFINE(HAVE_PERCPU_COUNTER_INIT_GFP_FLAG, 1,
2040 [percpu_counter_init uses GFP_* flag])
2042 ]) # LC_PERCPU_COUNTER_INIT
2045 # LC_KIOCB_HAS_NBYTES
2047 # 3.19 kernel removed ki_nbytes from struct kiocb
2049 AC_DEFUN([LC_KIOCB_HAS_NBYTES], [
2050 LB_CHECK_COMPILE([if struct kiocb has ki_nbytes field],
2052 #include <linux/fs.h>
2058 AC_DEFINE(HAVE_KI_NBYTES, 1, [ki_nbytes field exist])
2060 ]) # LC_KIOCB_HAS_NBYTES
2063 # LC_HAVE_DQUOT_QC_DQBLK
2065 # 3.19 has quotactl_ops->[sg]et_dqblk that take struct kqid and qc_dqblk
2066 # Added in commit 14bf61ffe
2068 AC_DEFUN([LC_HAVE_DQUOT_QC_DQBLK], [
2069 tmp_flags="$EXTRA_KCFLAGS"
2070 EXTRA_KCFLAGS="-Werror"
2071 LB_CHECK_COMPILE([if 'quotactl_ops.set_dqblk' takes struct qc_dqblk],
2073 #include <linux/fs.h>
2074 #include <linux/quota.h>
2076 ((struct quotactl_ops *)0)->set_dqblk(NULL, *((struct kqid*)0), (struct qc_dqblk*)0);
2078 AC_DEFINE(HAVE_DQUOT_QC_DQBLK, 1,
2079 [quotactl_ops.set_dqblk takes struct qc_dqblk])
2080 AC_DEFINE(HAVE_DQUOT_KQID, 1,
2081 [quotactl_ops.set_dqblk takes struct kqid])
2083 EXTRA_KCFLAGS="$tmp_flags"
2084 ]) # LC_HAVE_DQUOT_QC_DQBLK
2087 # LC_BACKING_DEV_INFO_REMOVAL
2089 # 3.20 kernel removed backing_dev_info from address_space
2091 AC_DEFUN([LC_BACKING_DEV_INFO_REMOVAL], [
2092 LB_CHECK_COMPILE([if struct address_space has backing_dev_info],
2094 #include <linux/fs.h>
2096 struct address_space mapping;
2098 mapping.backing_dev_info = NULL;
2100 AC_DEFINE(HAVE_BACKING_DEV_INFO, 1, [backing_dev_info exist])
2102 ]) # LC_BACKING_DEV_INFO_REMOVAL
2105 # LC_HAVE_BDI_CAP_MAP_COPY
2107 # 3.20 removed mmap handling for backing devices since
2108 # it breaks on non-MMU systems. See kernel commit
2109 # b4caecd48005fbed3949dde6c1cb233142fd69e9
2111 AC_DEFUN([LC_HAVE_BDI_CAP_MAP_COPY], [
2112 LB_CHECK_COMPILE([if have 'BDI_CAP_MAP_COPY'],
2114 #include <linux/backing-dev.h>
2116 struct backing_dev_info info;
2118 info.capabilities = BDI_CAP_MAP_COPY;
2120 AC_DEFINE(HAVE_BDI_CAP_MAP_COPY, 1,
2121 [BDI_CAP_MAP_COPY exist])
2123 ]) # LC_HAVE_BDI_CAP_MAP_COPY
2126 # LC_CANCEL_DIRTY_PAGE
2128 # 4.0.0 kernel removed cancel_dirty_page
2130 AC_DEFUN([LC_CANCEL_DIRTY_PAGE], [
2131 LB_CHECK_COMPILE([if cancel_dirty_page still exist],
2132 cancel_dirty_page, [
2133 #include <linux/mm.h>
2135 cancel_dirty_page(NULL, PAGE_SIZE);
2137 AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
2138 [cancel_dirty_page is still available])
2140 ]) # LC_CANCEL_DIRTY_PAGE
2145 # 4.1 kernel has iov_iter_rw
2147 AC_DEFUN([LC_IOV_ITER_RW], [
2148 LB_CHECK_COMPILE([if iov_iter_rw exist],
2150 #include <linux/fs.h>
2151 #include <linux/uio.h>
2153 struct iov_iter *iter = NULL;
2157 AC_DEFINE(HAVE_IOV_ITER_RW, 1,
2158 [iov_iter_rw exist])
2163 # LC_HAVE_SYNC_READ_WRITE
2165 # 4.1 new_sync_[read|write] no longer exported
2167 AC_DEFUN([LC_HAVE_SYNC_READ_WRITE], [
2168 LB_CHECK_EXPORT([new_sync_read], [fs/read_write.c],
2169 [AC_DEFINE(HAVE_SYNC_READ_WRITE, 1,
2170 [new_sync_[read|write] is exported by the kernel])])
2171 ]) # LC_HAVE_SYNC_READ_WRITE
2174 # LC_NEW_CANCEL_DIRTY_PAGE
2176 # 4.2 kernel has new cancel_dirty_page
2178 AC_DEFUN([LC_NEW_CANCEL_DIRTY_PAGE], [
2179 LB_CHECK_COMPILE([if cancel_dirty_page with one argument exist],
2180 new_cancel_dirty_page, [
2181 #include <linux/mm.h>
2183 cancel_dirty_page(NULL);
2185 AC_DEFINE(HAVE_NEW_CANCEL_DIRTY_PAGE, 1,
2186 [cancel_dirty_page with one arguement is available])
2188 ]) # LC_NEW_CANCEL_DIRTY_PAGE
2191 # LC_SYMLINK_OPS_USE_NAMEIDATA
2193 # For the 4.2+ kernels the file system internal symlink api no
2194 # longer uses struct nameidata as a argument
2196 AC_DEFUN([LC_SYMLINK_OPS_USE_NAMEIDATA], [
2197 LB_CHECK_COMPILE([if symlink inode operations have struct nameidata argument],
2198 symlink_use_nameidata, [
2199 #include <linux/namei.h>
2200 #include <linux/fs.h>
2202 struct nameidata *nd = NULL;
2204 ((struct inode_operations *)0)->follow_link(NULL, nd);
2205 ((struct inode_operations *)0)->put_link(NULL, nd, NULL);
2207 AC_DEFINE(HAVE_SYMLINK_OPS_USE_NAMEIDATA, 1,
2208 [symlink inode operations need struct nameidata argument])
2210 ]) # LC_SYMLINK_OPS_USE_NAMEIDATA
2213 # LC_BIO_ENDIO_USES_ONE_ARG
2215 # 4.2 kernel bio_endio now only takes one argument
2217 AC_DEFUN([LC_BIO_ENDIO_USES_ONE_ARG], [
2218 LB_CHECK_COMPILE([if 'bio_endio' with one argument exist],
2220 #include <linux/bio.h>
2224 AC_DEFINE(HAVE_BIO_ENDIO_USES_ONE_ARG, 1,
2225 [bio_endio takes only one argument])
2227 ]) # LC_BIO_ENDIO_USES_ONE_ARG
2230 # LC_HAVE_LOOP_CTL_GET_FREE
2232 # 4.x kernel have moved userspace APIs to
2233 # the separate directory and all of them
2234 # support LOOP_CTL_GET_FREE
2236 AC_DEFUN([LC_HAVE_LOOP_CTL_GET_FREE], [
2237 LB_CHECK_FILE([$LINUX/include/linux/loop.h], [
2238 LB_CHECK_COMPILE([if have 'HAVE_LOOP_CTL_GET_FREE'],
2239 LOOP_CTL_GET_FREE, [
2240 #include <linux/loop.h>
2244 i = LOOP_CTL_GET_FREE;
2246 AC_DEFINE(HAVE_LOOP_CTL_GET_FREE, 1,
2247 [LOOP_CTL_GET_FREE exist])
2250 AC_DEFINE(HAVE_LOOP_CTL_GET_FREE, 1,
2251 [kernel has LOOP_CTL_GET_FREE])
2253 ]) # LC_HAVE_LOOP_CTL_GET_FREE
2256 # LC_HAVE_CACHE_HEAD_HLIST
2258 # 4.3 kernel swiched to hlist for cache_head
2260 AC_DEFUN([LC_HAVE_CACHE_HEAD_HLIST], [
2261 LB_CHECK_COMPILE([if 'struct cache_head' has 'cache_list' field],
2262 cache_head_has_hlist, [
2263 #include <linux/sunrpc/cache.h>
2265 do {} while(sizeof(((struct cache_head *)0)->cache_list));
2267 AC_DEFINE(HAVE_CACHE_HEAD_HLIST, 1,
2268 [cache_head has hlist cache_list])
2270 ]) # LC_HAVE_CACHE_HEAD_HLIST
2273 # LC_HAVE_XATTR_HANDLER_SIMPLIFIED
2275 # Kernel version 4.3 commit e409de992e3ea3674393465f07cc71c948edd87a
2276 # simplified xattr_handler handling by passing in the handler pointer
2278 AC_DEFUN([LC_HAVE_XATTR_HANDLER_SIMPLIFIED], [
2279 tmp_flags="$EXTRA_KCFLAGS"
2280 EXTRA_KCFLAGS="-Werror"
2281 LB_CHECK_COMPILE([if 'struct xattr_handler' functions pass in handler pointer],
2282 xattr_handler_simplified, [
2283 #include <linux/xattr.h>
2285 struct xattr_handler handler;
2287 ((struct xattr_handler *)0)->get(&handler, NULL, NULL, NULL, 0);
2288 ((struct xattr_handler *)0)->set(&handler, NULL, NULL, NULL, 0, 0);
2290 AC_DEFINE(HAVE_XATTR_HANDLER_SIMPLIFIED, 1, [handler pointer is parameter])
2292 EXTRA_KCFLAGS="$tmp_flags"
2293 ]) # LC_HAVE_XATTR_HANDLER_SIMPLIFIED
2296 # LC_HAVE_LOCKS_LOCK_FILE_WAIT
2298 # 4.4 kernel have moved locks API users to
2299 # locks_lock_inode_wait()
2301 AC_DEFUN([LC_HAVE_LOCKS_LOCK_FILE_WAIT], [
2302 LB_CHECK_COMPILE([if 'locks_lock_file_wait' exists],
2303 locks_lock_file_wait, [
2304 #include <linux/fs.h>
2306 locks_lock_file_wait(NULL, NULL);
2308 AC_DEFINE(HAVE_LOCKS_LOCK_FILE_WAIT, 1,
2309 [kernel has locks_lock_file_wait])
2311 ]) # LC_HAVE_LOCKS_LOCK_FILE_WAIT
2314 # LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
2316 # 4.4 kernel merged type-specific data with the payload data for keys
2318 AC_DEFUN([LC_HAVE_KEY_PAYLOAD_DATA_ARRAY], [
2319 LB_CHECK_COMPILE([if 'struct key' has 'payload.data' as an array],
2320 key_payload_data_array, [
2321 #include <linux/key.h>
2323 ((struct key *)0)->payload.data[0] = NULL;
2325 AC_DEFINE(HAVE_KEY_PAYLOAD_DATA_ARRAY, 1, [payload.data is an array])
2327 ]) #LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
2330 # LC_HAVE_FILE_DENTRY
2332 # 4.5 adds wrapper file_dentry
2334 AC_DEFUN([LC_HAVE_FILE_DENTRY], [
2335 LB_CHECK_COMPILE([if Linux kernel has 'file_dentry'],
2337 #include <linux/fs.h>
2341 AC_DEFINE(HAVE_FILE_DENTRY, 1,
2342 [kernel has file_dentry])
2344 ]) # LC_HAVE_FILE_DENTRY
2347 # LC_HAVE_INODE_LOCK
2349 # 4.5 introduced inode_lock
2351 AC_DEFUN([LC_HAVE_INODE_LOCK], [
2352 LB_CHECK_COMPILE([if 'inode_lock' is defined],
2354 #include <linux/fs.h>
2358 AC_DEFINE(HAVE_INODE_LOCK, 1,
2359 [inode_lock is defined])
2361 ]) # LC_HAVE_INODE_LOCK
2364 # LC_HAVE_IOP_GET_LINK
2366 # 4.5 vfs replaced iop->follow_link with
2369 AC_DEFUN([LC_HAVE_IOP_GET_LINK], [
2370 LB_CHECK_COMPILE([if 'iop' has 'get_link'],
2371 inode_ops_get_link, [
2372 #include <linux/fs.h>
2374 struct inode_operations iop;
2375 iop.get_link = NULL;
2377 AC_DEFINE(HAVE_IOP_GET_LINK, 1,
2378 [have iop get_link])
2380 ]) # LC_HAVE_IOP_GET_LINK
2383 # LC_HAVE_IN_COMPAT_SYSCALL
2385 # 4.6 renamed is_compat_task to in_compat_syscall
2387 AC_DEFUN([LC_HAVE_IN_COMPAT_SYSCALL], [
2388 LB_CHECK_COMPILE([if 'in_compat_syscall' is defined],
2389 in_compat_syscall, [
2390 #include <linux/compat.h>
2392 in_compat_syscall();
2394 AC_DEFINE(HAVE_IN_COMPAT_SYSCALL, 1,
2395 [have in_compat_syscall])
2397 ]) # LC_HAVE_IN_COMPAT_SYSCALL
2400 # LC_HAVE_XATTR_HANDLER_INODE_PARAM
2402 # Kernel version 4.6 commit b296821a7c42fa58baa17513b2b7b30ae66f3336
2403 # and commit 5930122683dff58f0846b0f0405b4bd598a3ba6a added inode parameter
2404 # to xattr_handler functions
2406 AC_DEFUN([LC_HAVE_XATTR_HANDLER_INODE_PARAM], [
2407 tmp_flags="$EXTRA_KCFLAGS"
2408 EXTRA_KCFLAGS="-Werror"
2409 LB_CHECK_COMPILE([if 'struct xattr_handler' functions have inode parameter],
2410 xattr_handler_inode_param, [
2411 #include <linux/xattr.h>
2413 const struct xattr_handler handler;
2415 ((struct xattr_handler *)0)->get(&handler, NULL, NULL, NULL, NULL, 0);
2416 ((struct xattr_handler *)0)->set(&handler, NULL, NULL, NULL, NULL, 0, 0);
2418 AC_DEFINE(HAVE_XATTR_HANDLER_INODE_PARAM, 1, [needs inode parameter])
2420 EXTRA_KCFLAGS="$tmp_flags"
2421 ]) # LC_HAVE_XATTR_HANDLER_INODE_PARAM
2426 # Kernel version 4.7 commit c8b8e32d700fe943a935e435ae251364d016c497
2427 # direct-io: eliminate the offset argument to ->direct_IO
2429 AC_DEFUN([LC_DIRECTIO_2ARGS], [
2430 LB_CHECK_COMPILE([if '->direct_IO()' taken 2 arguments],
2432 #include <linux/fs.h>
2434 struct address_space_operations ops;
2435 struct iov_iter *iter = NULL;
2436 struct kiocb *iocb = NULL;
2438 rc = ops.direct_IO(iocb, iter);
2440 AC_DEFINE(HAVE_DIRECTIO_2ARGS, 1,
2441 [direct_IO need 2 arguments])
2443 ]) # LC_DIRECTIO_2ARGS
2446 # LC_GENERIC_WRITE_SYNC_2ARGS
2448 # Kernel version 4.7 commit c8b8e32d700fe943a935e435ae251364d016c497
2449 # direct-io: eliminate the offset argument to ->direct_IO
2451 AC_DEFUN([LC_GENERIC_WRITE_SYNC_2ARGS], [
2452 LB_CHECK_COMPILE([if 'generic_write_sync()' taken 2 arguments],
2453 generic_write_sync_2args, [
2454 #include <linux/fs.h>
2456 struct kiocb *iocb = NULL;
2458 rc = generic_write_sync(iocb, 0);
2460 AC_DEFINE(HAVE_GENERIC_WRITE_SYNC_2ARGS, 1,
2461 [generic_write_sync need 2 arguments])
2463 ]) # LC_GENERIC_WRITE_SYNC_2ARGS
2466 # LC_HAVE_POSIX_ACL_VALID_USER_NS
2468 # 4.8 posix_acl_valid takes struct user_namespace
2470 AC_DEFUN([LC_HAVE_POSIX_ACL_VALID_USER_NS], [
2471 LB_CHECK_COMPILE([if 'posix_acl_valid' takes 'struct user_namespace'],
2473 #include <linux/fs.h>
2474 #include <linux/posix_acl.h>
2476 posix_acl_valid((struct user_namespace*)NULL, (const struct posix_acl*)NULL);
2478 AC_DEFINE(HAVE_POSIX_ACL_VALID_USER_NS, 1,
2479 [posix_acl_valid takes struct user_namespace])
2481 ]) # LC_HAVE_POSIX_ACL_VALID_USER_NS
2484 # LC_D_COMPARE_4ARGS
2486 # Kernel version 4.8 commit 6fa67e707559303e086303aeecc9e8b91ef497d5
2487 # get rid of 'parent' argument of ->d_compare()
2489 AC_DEFUN([LC_D_COMPARE_4ARGS], [
2490 LB_CHECK_COMPILE([if 'd_compare' taken 4 arguments],
2492 #include <linux/dcache.h>
2494 ((struct dentry_operations*)0)->d_compare(NULL,0,NULL,NULL);
2496 AC_DEFINE(HAVE_D_COMPARE_4ARGS, 1,
2497 [d_compare need 4 arguments])
2499 ]) # LC_D_COMPARE_4ARGS
2502 # LC_FULL_NAME_HASH_3ARGS
2504 # Kernel version 4.8 commit 8387ff2577eb9ed245df9a39947f66976c6bcd02
2505 # vfs: make the string hashes salt the hash
2507 AC_DEFUN([LC_FULL_NAME_HASH_3ARGS], [
2508 LB_CHECK_COMPILE([if 'full_name_hash' taken 3 arguments],
2509 full_name_hash_3args, [
2510 #include <linux/stringhash.h>
2513 hash = full_name_hash(NULL,NULL,0);
2515 AC_DEFINE(HAVE_FULL_NAME_HASH_3ARGS, 1,
2516 [full_name_hash need 3 arguments])
2518 ]) # LC_FULL_NAME_HASH_3ARGS
2521 # LC_STRUCT_POSIX_ACL_XATTR
2523 # Kernel version 4.8 commit 2211d5ba5c6c4e972ba6dbc912b2897425ea6621
2524 # posix_acl: xattr representation cleanups
2526 AC_DEFUN([LC_STRUCT_POSIX_ACL_XATTR], [
2527 LB_CHECK_COMPILE([if 'struct posix_acl_xattr_{header,entry}' defined],
2528 struct_posix_acl_xattr, [
2529 #include <linux/fs.h>
2530 #include <linux/posix_acl_xattr.h>
2532 struct posix_acl_xattr_header *h = NULL;
2533 struct posix_acl_xattr_entry *e;
2534 e = (void *)(h + 1);
2536 AC_DEFINE(HAVE_STRUCT_POSIX_ACL_XATTR, 1,
2537 [struct posix_acl_xattr_{header,entry} defined])
2539 ]) # LC_STRUCT_POSIX_ACL_XATTR
2544 # Kernel version 4.8 commit fd50ecaddf8372a1d96e0daeaac0f93cf04e4d42
2545 # removed {get,set,remove}xattr inode operations
2547 AC_DEFUN([LC_IOP_XATTR], [
2548 LB_CHECK_COMPILE([if 'inode_operations' has {get,set,remove}xattr members],
2550 #include <linux/fs.h>
2552 struct inode_operations iop;
2553 iop.setxattr = NULL;
2554 iop.getxattr = NULL;
2555 iop.removexattr = NULL;
2557 AC_DEFINE(HAVE_IOP_XATTR, 1,
2558 [inode_operations has {get,set,remove}xattr members])
2565 # Kernel version 4.9 commit 81243eacfa400f5f7b89f4c2323d0de9982bb0fb
2566 # cred: simpler, 1D supplementary groups
2568 AC_DEFUN([LC_GROUP_INFO_GID], [
2569 LB_CHECK_COMPILE([if 'struct group_info' has member 'gid'],
2571 #include <linux/cred.h>
2574 p = ((struct group_info *)0)->gid;
2576 AC_DEFINE(HAVE_GROUP_INFO_GID, 1,
2577 [struct group_info has member gid])
2579 ]) # LC_GROUP_INFO_GID
2584 # Kernel version 4.9 commit 5d6c31910bc0713e37628dc0ce677dcb13c8ccf4
2585 # added __vfs_{get,set,remove}xattr helpers
2587 AC_DEFUN([LC_VFS_SETXATTR], [
2588 LB_CHECK_COMPILE([if '__vfs_setxattr' helper is available],
2590 #include <linux/xattr.h>
2592 __vfs_setxattr(NULL, NULL, NULL, NULL, 0, 0);
2594 AC_DEFINE(HAVE_VFS_SETXATTR, 1,
2595 ['__vfs_setxattr is available])
2597 ]) # LC_VFS_SETXATTR
2600 # LC_POSIX_ACL_UPDATE_MODE
2602 # Kernel version 4.9 commit 073931017b49d9458aa351605b43a7e34598caef
2603 # posix_acl: Clear SGID bit when setting file permissions
2605 AC_DEFUN([LC_POSIX_ACL_UPDATE_MODE], [
2606 LB_CHECK_COMPILE([if 'posix_acl_update_mode' exists],
2607 posix_acl_update_mode, [
2608 #include <linux/fs.h>
2609 #include <linux/posix_acl.h>
2611 posix_acl_update_mode(NULL, NULL, NULL);
2613 AC_DEFINE(HAVE_POSIX_ACL_UPDATE_MODE, 1,
2614 ['posix_acl_update_mode' is available])
2616 ]) # LC_POSIX_ACL_UPDATE_MODE
2619 # LC_IOP_GENERIC_READLINK
2621 # Kernel version 4.10 commit dfeef68862edd7d4bafe68ef7aeb5f658ef24bb5
2622 # removed generic_readlink from individual file systems
2624 AC_DEFUN([LC_IOP_GENERIC_READLINK], [
2625 LB_CHECK_COMPILE([if 'generic_readlink' still exist],
2626 inode_ops_readlink, [
2627 #include <linux/fs.h>
2629 struct inode_operations iop;
2630 iop.readlink = generic_readlink;
2632 AC_DEFINE(HAVE_IOP_GENERIC_READLINK, 1,
2633 [generic_readlink has been removed])
2635 ]) # LC_IOP_GENERIC_READLINK
2638 # LC_HAVE_VM_FAULT_ADDRESS
2640 # Kernel version 4.10 commit 1a29d85eb0f19b7d8271923d8917d7b4f5540b3e
2641 # removed virtual_address field. Need to use address field instead
2643 AC_DEFUN([LC_HAVE_VM_FAULT_ADDRESS], [
2644 LB_CHECK_COMPILE([if 'struct vm_fault' replaced virtual_address with address field],
2646 #include <linux/mm.h>
2648 struct vm_fault vmf;
2651 AC_DEFINE(HAVE_VM_FAULT_ADDRESS, 1,
2652 [virtual_address has been replaced by address field])
2654 ]) # LC_HAVE_VM_FAULT_ADDRESS
2657 # LC_INODEOPS_ENHANCED_GETATTR
2659 # Kernel version 4.11 commit a528d35e8bfcc521d7cb70aaf03e1bd296c8493f
2660 # expanded getattr to be able to get more stat information.
2662 AC_DEFUN([LC_INODEOPS_ENHANCED_GETATTR], [
2663 LB_CHECK_COMPILE([if 'inode_operations' getattr member can gather advance stats],
2665 #include <linux/fs.h>
2669 ((struct inode_operations *)1)->getattr(&path, NULL, 0, 0);
2671 AC_DEFINE(HAVE_INODEOPS_ENHANCED_GETATTR, 1,
2672 [inode_operations .getattr member function can gather advance stats])
2674 ]) # LC_INODEOPS_ENHANCED_GETATTR
2677 # LC_VM_OPERATIONS_REMOVE_VMF_ARG
2679 # Kernel version 4.11 commit 11bac80004499ea59f361ef2a5516c84b6eab675
2680 # removed struct vm_area_struct as an argument for vm_operations since
2681 # in the same kernel version struct vma_area_struct was folded into
2684 AC_DEFUN([LC_VM_OPERATIONS_REMOVE_VMF_ARG], [
2685 LB_CHECK_COMPILE([if 'struct vm_operations' removed struct vm_area_struct],
2686 vm_operations_no_vm_area_struct, [
2687 #include <linux/mm.h>
2689 struct vm_fault vmf;
2691 ((struct vm_operations_struct *)0)->fault(&vmf);
2692 ((struct vm_operations_struct *)0)->page_mkwrite(&vmf);
2694 AC_DEFINE(HAVE_VM_OPS_USE_VM_FAULT_ONLY, 1,
2695 ['struct vm_operations' remove struct vm_area_struct argument])
2697 ]) # LC_VM_OPERATIONS_REMOVE_VMF_ARG
2700 # Kernel version 4.12 commit 47f38c539e9a42344ff5a664942075bd4df93876
2701 # CURRENT_TIME is not 64 bit time safe so it was replaced with
2704 AC_DEFUN([LC_CURRENT_TIME], [
2705 LB_CHECK_COMPILE([if CURRENT_TIME has been replaced with current_time],
2707 #include <linux/fs.h>
2709 struct timespec ts = current_time(NULL);
2711 AC_DEFINE(HAVE_CURRENT_TIME, 1,
2712 [current_time() has replaced CURRENT_TIME])
2714 ]) # LIBCFS_CURRENT_TIME
2717 # LC_SUPER_SETUP_BDI_NAME
2719 # Kernel version 4.12 commit 9594caf216dc0fe3e318b34af0127276db661241
2720 # unified bdi handling
2722 AC_DEFUN([LC_SUPER_SETUP_BDI_NAME], [
2723 LB_CHECK_COMPILE([if 'super_setup_bdi_name' exist],
2724 super_setup_bdi_name, [
2725 #include <linux/fs.h>
2727 super_setup_bdi_name(NULL, "lustre");
2729 AC_DEFINE(HAVE_SUPER_SETUP_BDI_NAME, 1,
2730 ['super_setup_bdi_name' is available])
2732 ]) # LC_SUPER_SETUP_BDI_NAME
2737 # Lustre linux kernel checks
2739 AC_DEFUN([LC_PROG_LINUX], [
2740 AC_MSG_NOTICE([Lustre kernel checks
2741 ==============================================================================])
2745 LC_CONFIG_HEALTH_CHECK_WRITE
2746 LC_CONFIG_LRU_RESIZE
2748 LC_GLIBC_SUPPORT_FHANDLES
2753 LC_BLK_QUEUE_MAX_SEGMENTS
2756 LC_HAVE_XATTR_HANDLER_FLAGS
2759 LC_HAVE_DQUOT_FS_DISK_QUOTA
2760 LC_HAVE_DQUOT_SUSPEND
2761 LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE
2765 LC_EXPORT_SIMPLE_SETATTR
2766 LC_EXPORT_TRUNCATE_COMPLETE_PAGE
2770 LC_SBOPS_EVICT_INODE
2774 LC_FS_STRUCT_SEQCOUNT
2777 LC_BLKDEV_GET_BY_DEV
2778 LC_GENERIC_PERMISSION
2786 LC_HAVE_FHANDLE_SYSCALLS
2787 LC_HAVE_FSTYPE_MOUNT
2789 LC_HAVE_INODE_OWNER_OR_CAPABLE
2790 LC_HAVE_SECURITY_IINITSEC
2793 LC_DIRTY_INODE_WITH_FLAG
2797 LC_LM_XXX_LOCK_MANAGER_OPS
2801 LC_INODE_PERMISION_2ARGS
2802 LC_RADIX_EXCEPTION_ENTRY
2803 LC_HAVE_LOOP_CTL_GET_FREE
2806 LC_HAVE_PROTECT_I_NLINK
2809 LC_HAVE_MIGRATE_HEADER
2810 LC_MIGRATEPAGE_4ARGS
2811 LC_SUPEROPS_USE_DENTRY
2812 LC_INODEOPS_USE_UMODE_T
2813 LC_HAVE_CACHE_REGISTER
2817 LC_KMAP_ATOMIC_HAS_1ARG
2821 LC_HAVE_ENCODE_FH_PARENT
2822 LC_FILE_LLSEEK_SIZE_5ARG
2825 LC_DATA_FOR_LLITE_IS_LIST
2826 LC_DENTRY_OPEN_USE_PATH
2827 LC_HAVE_IOP_ATOMIC_OPEN
2828 LC_HAVE_SB_START_WRITE
2831 LC_HAVE_POSIXACL_USER_NS
2834 LC_HAVE_FILE_F_INODE
2836 LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
2839 LC_HAVE_HLIST_FOR_EACH_3ARG
2840 LC_HAVE_BIO_END_SECTOR
2844 LC_HAVE_REMOVE_PROC_SUBTREE
2846 LC_HAVE_PROJECT_QUOTA
2847 LC_HAVE_SECURITY_DENTRY_INIT_SECURITY
2854 LC_HAVE_DENTRY_D_U_D_ALIAS
2855 LC_HAVE_DENTRY_D_CHILD
2856 LC_PID_NS_FOR_CHILDREN
2859 LC_OLDSIZE_TRUNCATE_PAGECACHE
2860 LC_PTR_ERR_OR_ZERO_MISSING
2869 LC_HAVE_TRUNCATE_IPAGES_FINAL
2870 LC_IOPS_RENAME_WITH_FLAGS
2877 LC_DIRECTIO_USE_ITER
2878 LC_HAVE_IOV_ITER_INIT_DIRECTION
2879 LC_HAVE_IOV_ITER_TRUNCATE
2880 LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
2886 LC_PERCPU_COUNTER_INIT
2887 LC_NFS_FILLDIR_USE_CTX
2891 LC_HAVE_DQUOT_QC_DQBLK
2894 LC_BACKING_DEV_INFO_REMOVAL
2895 LC_HAVE_BDI_CAP_MAP_COPY
2898 LC_CANCEL_DIRTY_PAGE
2902 LC_HAVE_SYNC_READ_WRITE
2905 LC_NEW_CANCEL_DIRTY_PAGE
2906 LC_BIO_ENDIO_USES_ONE_ARG
2907 LC_SYMLINK_OPS_USE_NAMEIDATA
2910 LC_HAVE_CACHE_HEAD_HLIST
2911 LC_HAVE_XATTR_HANDLER_SIMPLIFIED
2914 LC_HAVE_LOCKS_LOCK_FILE_WAIT
2915 LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
2918 LC_HAVE_SUBMIT_BIO_2ARGS
2919 LC_HAVE_CLEAN_BDEV_ALIASES
2926 LC_HAVE_IOP_GET_LINK
2929 LC_HAVE_IN_COMPAT_SYSCALL
2930 LC_HAVE_XATTR_HANDLER_INODE_PARAM
2934 LC_GENERIC_WRITE_SYNC_2ARGS
2937 LC_HAVE_POSIX_ACL_VALID_USER_NS
2939 LC_FULL_NAME_HASH_3ARGS
2940 LC_STRUCT_POSIX_ACL_XATTR
2946 LC_POSIX_ACL_UPDATE_MODE
2949 LC_IOP_GENERIC_READLINK
2950 LC_HAVE_VM_FAULT_ADDRESS
2953 LC_INODEOPS_ENHANCED_GETATTR
2954 LC_VM_OPERATIONS_REMOVE_VMF_ARG
2958 LC_SUPER_SETUP_BDI_NAME
2961 AS_IF([test "x$enable_server" != xno], [
2971 # Check whether to build the client side of Lustre
2973 AC_DEFUN([LC_CONFIG_CLIENT], [
2974 AC_MSG_CHECKING([whether to build Lustre client support])
2975 AC_ARG_ENABLE([client],
2976 AC_HELP_STRING([--disable-client],
2977 [disable Lustre client support]),
2978 [], [enable_client="yes"])
2979 AC_MSG_RESULT([$enable_client])
2980 ]) # LC_CONFIG_CLIENT
2985 AC_DEFUN([LB_CONFIG_MPITESTS], [
2986 AC_ARG_ENABLE([mpitests],
2987 AC_HELP_STRING([--enable-mpitests=<yes|no|mpicc wrapper>],
2988 [include mpi tests]), [
2989 enable_mpitests="yes"
2992 MPICC_WRAPPER="mpicc"
2995 enable_mpitests="no"
2998 MPICC_WRAPPER=$enableval
3002 enable_mpitests="yes"
3003 MPICC_WRAPPER="mpicc"
3006 if test "x$enable_mpitests" != "xno"; then
3009 AC_CACHE_CHECK([whether mpitests can be built],
3010 lb_cv_mpi_tests, [AC_COMPILE_IFELSE([AC_LANG_SOURCE([
3014 MPI_Initialized(&flag);
3017 ])], [lb_cv_mpi_tests="yes"], [lb_cv_mpi_tests="no"])
3019 enable_mpitests=$lb_cv_mpi_tests
3022 AC_SUBST(MPICC_WRAPPER)
3023 ]) # LB_CONFIG_MPITESTS
3028 # whether to enable quota support global control
3030 AC_DEFUN([LC_CONFIG_QUOTA], [
3031 AC_MSG_CHECKING([whether to enable quota support global control])
3032 AC_ARG_ENABLE([quota],
3033 AC_HELP_STRING([--enable-quota],
3034 [enable quota support]),
3035 [], [enable_quota="yes"])
3036 AS_IF([test "x$enable_quota" = xyes],
3037 [AC_MSG_RESULT([yes])],
3038 [AC_MSG_RESULT([no])])
3039 ]) # LC_CONFIG_QUOTA
3044 AC_DEFUN([LC_QUOTA], [
3048 AS_IF([test "x$enable_quota" != xno -a "x$enable_utils" != xno], [
3049 AC_CHECK_HEADER([sys/quota.h],
3050 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1,
3051 [Define to 1 if you have <sys/quota.h>.])],
3052 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
3057 # LC_CONFIG_NODEMAP_PROC_DEBUG
3059 # enable nodemap proc file debugging
3061 AC_DEFUN([LC_NODEMAP_PROC_DEBUG], [
3062 AC_MSG_CHECKING([whether to enable nodemap proc debug])
3063 AC_ARG_ENABLE([nodemap_proc_debug],
3064 AC_HELP_STRING([--enable-nodemap-proc-debug],
3065 [enable nodemap proc debug]),
3066 [], [enable_nodemap_proc_debug="no"])
3067 AC_MSG_RESULT([$enable_nodemap_proc_debug])
3068 AS_IF([test "x$enable_nodemap_proc_debug" != xno],
3069 [AC_DEFINE(NODEMAP_PROC_DEBUG, 1,
3070 [enable nodemap proc debug support])])
3071 ]) # LC_NODEMAP_PROC_DEBUG
3076 # configure support for optional OSD implementation
3078 AC_DEFUN([LC_OSD_ADDON], [
3079 AC_MSG_CHECKING([whether to use OSD addon])
3081 AC_HELP_STRING([--with-osd=path],
3082 [set path to optional osd]),
3089 OSDADDON="$with_osd"
3096 AS_IF([test $ENABLEOSDADDON -eq 0], [
3100 OSDMODNAME=$(basename $OSDADDON)
3101 AS_IF([test -e $LUSTRE/$OSDMODNAME], [
3102 AC_MSG_RESULT([can't link])
3104 ], [ln -s $OSDADDON $LUSTRE/$OSDMODNAME], [
3105 AC_MSG_RESULT([$OSDMODNAME])
3106 OSDADDON="subdir-m += $OSDMODNAME"
3108 AC_MSG_RESULT([can't link])
3118 # other configure checks
3120 AC_DEFUN([LC_CONFIGURE], [
3121 AC_MSG_NOTICE([Lustre core checks
3122 ==============================================================================])
3124 AS_IF([test $target_cpu == "i686" -o $target_cpu == "x86_64"],
3125 [CFLAGS="$CFLAGS -Wall -Werror"])
3127 # maximum MDS thread count
3130 # lustre/utils/gss/gss_util.c
3131 # lustre/utils/gss/gssd_proc.c
3132 # lustre/utils/gss/krb5_util.c
3133 # lustre/utils/llog_reader.c
3134 # lustre/utils/create_iam.c
3135 # lustre/utils/libiam.c
3136 AC_CHECK_HEADERS([netdb.h endian.h])
3137 AC_CHECK_FUNCS([gethostbyname])
3139 # lustre/utils/llverdev.c
3140 AC_CHECK_HEADERS([blkid/blkid.h])
3142 # lustre/utils/llverfs.c
3143 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
3145 # lustre/utils/lfs.c
3146 AC_CHECK_LIB([z], [crc32], [
3147 AC_CHECK_HEADER([zlib.h], [], [
3148 AC_MSG_ERROR([zlib.h not found.])])
3151 zlib library not found. Please install zlib development package.])
3155 AC_CHECK_LIB([selinux], [is_selinux_enabled],
3156 [AC_CHECK_HEADERS([selinux/selinux.h],
3157 [SELINUX="-lselinux"
3158 AC_DEFINE([HAVE_SELINUX], 1,
3159 [support for selinux ])],
3162 No libselinux-devel package found, unable to build selinux enabled tools
3167 No selinux package found, unable to build selinux enabled tools
3173 AC_MSG_CHECKING([whether to report minimum OST free space])
3174 AC_ARG_ENABLE([mindf],
3175 AC_HELP_STRING([--enable-mindf],
3176 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
3177 [], [enable_mindf="no"])
3178 AC_MSG_RESULT([$enable_mindf])
3179 AS_IF([test "$enable_mindf" = "yes"],
3180 [AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])])
3182 AC_MSG_CHECKING([whether to randomly failing memory alloc])
3183 AC_ARG_ENABLE([fail_alloc],
3184 AC_HELP_STRING([--disable-fail-alloc],
3185 [disable randomly alloc failure]),
3186 [], [enable_fail_alloc="yes"])
3187 AC_MSG_RESULT([$enable_fail_alloc])
3188 AS_IF([test "x$enable_fail_alloc" != xno],
3189 [AC_DEFINE([RANDOM_FAIL_ALLOC], 1,
3190 [enable randomly alloc failure])])
3192 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
3193 AC_ARG_ENABLE([invariants],
3194 AC_HELP_STRING([--enable-invariants],
3195 [enable invariant checking (cpu intensive)]),
3196 [], [enable_invariants="no"])
3197 AC_MSG_RESULT([$enable_invariants])
3198 AS_IF([test "x$enable_invariants" = xyes],
3199 [AC_DEFINE([CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK], 1,
3200 [enable invariant checking])])
3202 AC_MSG_CHECKING([whether to track references with lu_ref])
3203 AC_ARG_ENABLE([lu_ref],
3204 AC_HELP_STRING([--enable-lu_ref],
3205 [enable lu_ref reference tracking code]),
3206 [], [enable_lu_ref="no"])
3207 AC_MSG_RESULT([$enable_lu_ref])
3208 AS_IF([test "x$enable_lu_ref" = xyes],
3209 [AC_DEFINE([USE_LU_REF], 1,
3210 [enable lu_ref reference tracking code])])
3212 AC_MSG_CHECKING([whether to enable page state tracking])
3213 AC_ARG_ENABLE([pgstate-track],
3214 AC_HELP_STRING([--enable-pgstate-track],
3215 [enable page state tracking]),
3216 [], [enable_pgstat_track="no"])
3217 AC_MSG_RESULT([$enable_pgstat_track])
3218 AS_IF([test "x$enable_pgstat_track" = xyes],
3219 [AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
3220 [enable page state tracking code])])
3223 AC_MSG_CHECKING([systemd unit file directory])
3224 AC_ARG_WITH([systemdsystemunitdir],
3225 [AS_HELP_STRING([--with-systemdsystemunitdir=DIR],
3226 [Directory for systemd service files])],
3227 [], [with_systemdsystemunitdir=auto])
3228 AS_IF([test "x$with_systemdsystemunitdir" = "xyes" -o "x$with_systemdsystemunitdir" = "xauto"],
3229 [def_systemdsystemunitdir=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)
3230 AS_IF([test "x$def_systemdsystemunitdir" = "x"],
3231 [AS_IF([test "x$with_systemdsystemunitdir" = "xyes"],
3232 [AC_MSG_ERROR([systemd support requested but pkg-config unable to query systemd package])])
3233 with_systemdsystemunitdir=no],
3234 [with_systemdsystemunitdir="$def_systemdsystemunitdir"])])
3235 AS_IF([test "x$with_systemdsystemunitdir" != "xno"],
3236 [AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])])
3237 AC_MSG_RESULT([$with_systemdsystemunitdir])
3243 # AM_CONDITIONALS for lustre
3245 AC_DEFUN([LC_CONDITIONALS], [
3246 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
3247 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
3248 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
3249 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
3250 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
3251 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
3252 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
3253 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
3254 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
3255 AM_CONDITIONAL(GSS_SSK, test x$enable_ssk = xyes)
3256 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
3257 AM_CONDITIONAL(HAVE_SYSTEMD, test "x$with_systemdsystemunitdir" != "xno")
3258 AM_CONDITIONAL(XATTR_HANDLER, test "x$lb_cv_compile_xattr_handler_flags" = xyes)
3259 ]) # LC_CONDITIONALS
3264 # files that should be generated with AC_OUTPUT
3266 AC_DEFUN([LC_CONFIG_FILES],
3270 lustre/autoconf/Makefile
3271 lustre/conf/Makefile
3272 lustre/contrib/Makefile
3274 lustre/include/Makefile
3275 lustre/include/lustre/Makefile
3276 lustre/include/uapi/linux/lustre/Makefile
3277 lustre/kernel_patches/targets/3.10-rhel7.target
3278 lustre/kernel_patches/targets/2.6-rhel6.9.target
3279 lustre/kernel_patches/targets/2.6-rhel6.8.target
3280 lustre/kernel_patches/targets/2.6-rhel6.7.target
3281 lustre/kernel_patches/targets/2.6-rhel6.6.target
3282 lustre/kernel_patches/targets/2.6-rhel6.target
3283 lustre/kernel_patches/targets/2.6-rhel5.target
3284 lustre/kernel_patches/targets/2.6-sles11.target
3285 lustre/kernel_patches/targets/3.0-sles11.target
3286 lustre/kernel_patches/targets/3.0-sles11sp3.target
3287 lustre/kernel_patches/targets/3.0-sles11sp4.target
3288 lustre/kernel_patches/targets/3.12-sles12.target
3289 lustre/kernel_patches/targets/4.4-sles12.target
3290 lustre/kernel_patches/targets/4.4-sles12sp3.target
3291 lustre/kernel_patches/targets/2.6-fc11.target
3292 lustre/kernel_patches/targets/2.6-fc12.target
3293 lustre/kernel_patches/targets/2.6-fc15.target
3294 lustre/kernel_patches/targets/3.x-fc18.target
3295 lustre/ldlm/Makefile
3297 lustre/fid/autoMakefile
3298 lustre/llite/Makefile
3299 lustre/llite/autoMakefile
3301 lustre/lov/autoMakefile
3303 lustre/mdc/autoMakefile
3305 lustre/lmv/autoMakefile
3306 lustre/lfsck/Makefile
3307 lustre/lfsck/autoMakefile
3309 lustre/mdt/autoMakefile
3311 lustre/mdd/autoMakefile
3313 lustre/fld/autoMakefile
3314 lustre/obdclass/Makefile
3315 lustre/obdclass/autoMakefile
3316 lustre/obdclass/linux/Makefile
3317 lustre/obdecho/Makefile
3318 lustre/obdecho/autoMakefile
3320 lustre/ofd/autoMakefile
3322 lustre/osc/autoMakefile
3324 lustre/ost/autoMakefile
3325 lustre/osd-ldiskfs/Makefile
3326 lustre/osd-ldiskfs/autoMakefile
3327 lustre/osd-zfs/Makefile
3328 lustre/osd-zfs/autoMakefile
3330 lustre/mgc/autoMakefile
3332 lustre/mgs/autoMakefile
3333 lustre/target/Makefile
3334 lustre/ptlrpc/Makefile
3335 lustre/ptlrpc/autoMakefile
3336 lustre/ptlrpc/gss/Makefile
3337 lustre/ptlrpc/gss/autoMakefile
3338 lustre/quota/Makefile
3339 lustre/quota/autoMakefile
3340 lustre/scripts/Makefile
3341 lustre/scripts/systemd/Makefile
3342 lustre/tests/Makefile
3343 lustre/tests/mpi/Makefile
3344 lustre/tests/kernel/Makefile
3345 lustre/tests/kernel/autoMakefile
3346 lustre/utils/Makefile
3347 lustre/utils/gss/Makefile
3349 lustre/osp/autoMakefile
3351 lustre/lod/autoMakefile
3353 ]) # LC_CONFIG_FILES