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
79 # Ensure the stack size is at least 8k in Lustre server (all kernels)
81 AC_DEFUN([LC_STACK_SIZE], [
82 LB_CHECK_COMPILE([if stack size is at least 8k],
84 #include <linux/thread_info.h>
86 #if THREAD_SIZE < 8192
87 #error "stack size < 8192"
89 ], [], [AC_MSG_ERROR([
91 Lustre requires that Linux is configured with at least a 8KB stack.
98 # Allow the user to set the MDS thread upper limit
100 AC_DEFUN([LC_MDS_MAX_THREADS], [
101 AC_MSG_CHECKING([for maximum number of MDS threads])
102 AC_ARG_WITH([mds_max_threads],
103 AC_HELP_STRING([--with-mds-max-threads=count],
104 [maximum threads available on the MDS: (default=512)]),
105 [AC_DEFINE_UNQUOTED(MDS_MAX_THREADS, $with_mds_max_threads,
106 [maximum number of MDS threads])])
107 AC_MSG_RESULT([$with_mds_max_threads])
108 ]) # LC_MDS_MAX_THREADS
113 # the pinger is temporary, until we have the recovery node in place
115 AC_DEFUN([LC_CONFIG_PINGER], [
116 AC_MSG_CHECKING([whether to enable Lustre pinger support])
117 AC_ARG_ENABLE([pinger],
118 AC_HELP_STRING([--disable-pinger],
119 [disable recovery pinger support]),
120 [], [enable_pinger="yes"])
121 AC_MSG_RESULT([$enable_pinger])
122 AS_IF([test "x$enable_pinger" != xno],
123 [AC_DEFINE(ENABLE_PINGER, 1,[Use the Pinger])])
124 ]) # LC_CONFIG_PINGER
129 # do checksum of bulk data between client and OST
131 AC_DEFUN([LC_CONFIG_CHECKSUM], [
132 AC_MSG_CHECKING([whether to enable data checksum support])
133 AC_ARG_ENABLE([checksum],
134 AC_HELP_STRING([--disable-checksum],
135 [disable data checksum support]),
136 [], [enable_checksum="yes"])
137 AC_MSG_RESULT([$enable_checksum])
138 AS_IF([test "x$enable_checksum" != xno],
139 [AC_DEFINE(ENABLE_CHECKSUM, 1, [do data checksums])])
140 ]) # LC_CONFIG_CHECKSUM
143 # LC_CONFIG_HEALTH_CHECK_WRITE
145 # Turn off the actual write to the disk
147 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE], [
148 AC_MSG_CHECKING([whether to enable a write with the health check])
149 AC_ARG_ENABLE([health_write],
150 AC_HELP_STRING([--enable-health_write],
151 [enable disk writes when doing health check]),
152 [], [enable_health_write="no"])
153 AC_MSG_RESULT([$enable_health_write])
154 AS_IF([test "x$enable_health_write" != xno],
155 [AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, [Write when Checking Health])])
156 ]) # LC_CONFIG_HEALTH_CHECK_WRITE
159 # LC_CONFIG_LRU_RESIZE
161 AC_DEFUN([LC_CONFIG_LRU_RESIZE], [
162 AC_MSG_CHECKING([whether to enable lru self-adjusting])
163 AC_ARG_ENABLE([lru_resize],
164 AC_HELP_STRING([--enable-lru-resize],
165 [enable lru resize support]),
166 [], [enable_lru_resize="yes"])
167 AC_MSG_RESULT([$enable_lru_resize])
168 AS_IF([test "x$enable_lru_resize" != xno],
169 [AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])])
170 ]) # LC_CONFIG_LRU_RESIZE
175 # Quota support. The kernel must support CONFIG_QUOTA.
177 AC_DEFUN([LC_QUOTA_CONFIG], [
178 LB_CHECK_CONFIG_IM([QUOTA], [],
181 Lustre quota requires that CONFIG_QUOTA is enabled in your kernel.
186 # LC_EXPORT_TRUNCATE_COMPLETE_PAGE
188 # truncate_complete_page() has never been exported from an upstream kernel
189 # remove_from_page_cache() was exported between 2.6.35 and 2.6.38
190 # delete_from_page_cache() is exported from 2.6.39
192 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE_PAGE], [
193 LB_CHECK_EXPORT([truncate_complete_page], [mm/truncate.c],
194 [AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
195 [kernel export truncate_complete_page])])
196 LB_CHECK_EXPORT([remove_from_page_cache], [mm/filemap.c],
197 [AC_DEFINE(HAVE_REMOVE_FROM_PAGE_CACHE, 1,
198 [kernel export remove_from_page_cache])])
199 LB_CHECK_EXPORT([delete_from_page_cache], [mm/filemap.c],
200 [AC_DEFINE(HAVE_DELETE_FROM_PAGE_CACHE, 1,
201 [kernel export delete_from_page_cache])])
202 ]) # LC_EXPORT_TRUNCATE_COMPLETE_PAGE
205 # LC_CONFIG_GSS_KEYRING
207 # default 'auto', tests for dependencies, if found, enables;
208 # only called if gss is enabled
210 AC_DEFUN([LC_CONFIG_GSS_KEYRING], [
211 AC_MSG_CHECKING([whether to enable gss keyring backend])
212 AC_ARG_ENABLE([gss_keyring],
213 [AC_HELP_STRING([--disable-gss-keyring],
214 [disable gss keyring backend])],
215 [], [enable_gss_keyring="auto"])
216 AC_MSG_RESULT([$enable_gss_keyring])
217 AS_IF([test "x$enable_gss_keyring" != xno], [
218 LB_CHECK_CONFIG_IM([KEYS], [], [
219 gss_keyring_conf_test="fail"
220 AC_MSG_WARN([GSS keyring backend requires that CONFIG_KEYS be enabled in your kernel.])])
222 AC_CHECK_LIB([keyutils], [keyctl_search], [], [
223 gss_keyring_conf_test="fail"
224 AC_MSG_WARN([GSS keyring backend requires libkeyutils])])
226 AS_IF([test "x$gss_keyring_conf_test" != xfail], [
227 AC_DEFINE([HAVE_GSS_KEYRING], [1],
228 [Define this if you enable gss keyring backend])
229 enable_gss_keyring="yes"
231 AS_IF([test "x$enable_gss_keyring" = xyes], [
232 AC_MSG_ERROR([Cannot enable gss_keyring. See above for details.])
236 ]) # LC_CONFIG_GSS_KEYRING
239 # LC_HAVE_CRED_TGCRED
241 # rhel7 struct cred has no member tgcred
243 AC_DEFUN([LC_HAVE_CRED_TGCRED], [
244 LB_CHECK_COMPILE([if 'struct cred' has member 'tgcred'],
246 #include <linux/cred.h>
248 ((struct cred *)0)->tgcred = NULL;
250 AC_DEFINE(HAVE_CRED_TGCRED, 1,
251 [struct cred has member tgcred])
253 ]) # LC_HAVE_CRED_TGCRED
256 # LC_KEY_TYPE_INSTANTIATE_2ARGS
258 # rhel7 key_type->instantiate takes 2 args (struct key, struct key_preparsed_payload)
260 AC_DEFUN([LC_KEY_TYPE_INSTANTIATE_2ARGS], [
261 LB_CHECK_COMPILE([if 'key_type->instantiate' has two args],
262 key_type_instantiate_2args, [
263 #include <linux/key-type.h>
265 ((struct key_type *)0)->instantiate(0, NULL);
267 AC_DEFINE(HAVE_KEY_TYPE_INSTANTIATE_2ARGS, 1,
268 [key_type->instantiate has two args])
270 ]) # LC_KEY_TYPE_INSTANTIATE_2ARGS
275 AC_DEFUN([LC_CONFIG_SUNRPC], [
276 LB_CHECK_CONFIG_IM([SUNRPC], [], [
277 AS_IF([test "x$sunrpc_required" = xyes], [
280 kernel SUNRPC support is required by using GSS.
283 ]) # LC_CONFIG_SUNRPC
286 # LC_HAVE_CRYPTO_HASH
288 # 4.6 kernel commit 896545098777564212b9e91af4c973f094649aa7
289 # removed crypto_hash support. Since GSS only works with
290 # crypto_hash it has to be disabled for newer distros.
292 AC_DEFUN([LC_HAVE_CRYPTO_HASH], [
293 LB_CHECK_COMPILE([if crypto_hash API is supported],
295 #include <linux/crypto.h>
297 crypto_hash_digestsize(NULL);
298 ], [], [enable_gss="no"])
300 ]) # LC_HAVE_CRYPTO_HASH
303 # LC_CONFIG_GSS (default 'auto' (tests for dependencies, if found, enables))
305 # Build gss and related tools of Lustre. Currently both kernel and user space
306 # parts are depend on linux platform.
308 AC_DEFUN([LC_CONFIG_GSS], [
309 AC_MSG_CHECKING([whether to enable gss support])
311 [AC_HELP_STRING([--enable-gss], [enable gss support])],
312 [], [enable_gss="auto"])
313 AC_MSG_RESULT([$enable_gss])
315 AS_IF([test "x$enable_gss" != xno], [
316 LC_CONFIG_GSS_KEYRING
319 LC_KEY_TYPE_INSTANTIATE_2ARGS
320 sunrpc_required=$enable_gss
324 LB_CHECK_CONFIG_IM([CRYPTO_MD5], [],
325 [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
326 LB_CHECK_CONFIG_IM([CRYPTO_SHA1], [],
327 [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
328 LB_CHECK_CONFIG_IM([CRYPTO_SHA256], [],
329 [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
330 LB_CHECK_CONFIG_IM([CRYPTO_SHA512], [],
331 [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
333 require_krb5=$enable_gss
337 AS_IF([test -n "$KRBDIR"], [
338 gss_conf_test="success"
340 gss_conf_test="failure"
343 AS_IF([test "x$gss_conf_test" = xsuccess], [
344 AC_DEFINE([HAVE_GSS], [1], [Define this is if you enable gss])
350 enable_ssk=$enable_gss
356 # OpenSSL 1.0+ return int for HMAC functions but older SLES11 versions do not
357 AC_DEFUN([LC_OPENSSL_SSK], [
358 AC_MSG_CHECKING([whether OpenSSL has functions needed for SSK])
359 AS_IF([test "x$enable_ssk" != xno], [
360 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
361 #include <openssl/hmac.h>
362 #include <openssl/evp.h>
368 rc = HMAC_Init_ex(&ctx, "test", 4, EVP_md_null(), NULL);
370 ])],[AC_DEFINE(HAVE_OPENSSL_SSK, 1,
371 [OpenSSL HMAC functions needed for SSK])],
374 AC_MSG_RESULT([$enable_ssk])
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_XATTR_HANDLER_FLAGS
419 # 2.6.33 added a private flag to xattr_handler
421 AC_DEFUN([LC_HAVE_XATTR_HANDLER_FLAGS], [
422 LB_CHECK_COMPILE([if 'struct xattr_handler' has flags field],
423 xattr_handler_flags, [
424 #include <linux/xattr.h>
426 struct xattr_handler handler;
430 AC_DEFINE(HAVE_XATTR_HANDLER_FLAGS, 1, [flags field exist])
432 ]) # LC_HAVE_XATTR_HANDLER_FLAGS
435 # LC_HAVE_DQUOT_FS_DISK_QUOTA
437 # 2.6.34 has quotactl_ops->[sg]et_dqblk that take struct fs_disk_quota
439 AC_DEFUN([LC_HAVE_DQUOT_FS_DISK_QUOTA], [
440 tmp_flags="$EXTRA_KCFLAGS"
441 EXTRA_KCFLAGS="-Werror"
442 LB_CHECK_COMPILE([if 'quotactl_ops.set_dqblk' takes struct fs_disk_quota],
444 #include <linux/fs.h>
445 #include <linux/quota.h>
447 ((struct quotactl_ops *)0)->set_dqblk(NULL, 0, 0, (struct fs_disk_quota*)0);
449 AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1,
450 [quotactl_ops.set_dqblk takes struct fs_disk_quota])
452 LB_CHECK_COMPILE([if 'quotactl_ops.set_dqblk' takes struct kqid & fs_disk_quota],
453 kqid_fs_disk_quota, [
454 #include <linux/fs.h>
455 #include <linux/quota.h>
457 ((struct quotactl_ops *)0)->set_dqblk((struct super_block*)0, *((struct kqid*)0), (struct fs_disk_quota*)0);
459 AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1,
460 [quotactl_ops.set_dqblk takes struct fs_disk_quota])
461 AC_DEFINE(HAVE_DQUOT_KQID, 1,
462 [quotactl_ops.set_dqblk takes struct kqid])
465 EXTRA_KCFLAGS="$tmp_flags"
466 ]) # LC_HAVE_DQUOT_FS_DISK_QUOTA
469 # LC_HAVE_DQUOT_SUSPEND
471 # 2.6.34 has renamed dquot options to dquot_*, check for dquot_suspend
473 AC_DEFUN([LC_HAVE_DQUOT_SUSPEND], [
474 LB_CHECK_COMPILE([if 'dquot_suspend' is defined],
476 #include <linux/quotaops.h>
478 dquot_suspend(NULL, -1);
480 AC_DEFINE(HAVE_DQUOT_SUSPEND, 1, [dquot_suspend is defined])
482 ]) # LC_HAVE_DQUOT_SUSPEND
487 # Check if kernel has been patched for 64-bit quota limits support.
488 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
489 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
490 # that in the absence of quotaio_v1.h in the kernel headers.
492 AC_DEFUN([LC_QUOTA64], [
493 tmp_flags="$EXTRA_KCFLAGS"
494 EXTRA_KCFLAGS="-I$LINUX/fs"
495 LB_CHECK_COMPILE([if kernel has 64-bit quota limits support],
497 #include <linux/kernel.h>
498 #include <linux/fs.h>
499 #if defined(HAVE_FS_QUOTA_QUOTAIO_H)
500 #include <quota/quotaio_v2.h>
501 struct v2r1_disk_dqblk dqblk_r1;
503 #include <linux/quota.h>
504 int ver = QFMT_VFS_V1;
507 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
509 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],
510 [AC_MSG_ERROR([You have got no 64-bit kernel quota support.])])
512 EXTRA_KCFLAGS=$tmp_flags
516 # LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE
518 # 2.6.34 adds __add_wait_queue_exclusive
520 AC_DEFUN([LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE], [
521 LB_CHECK_COMPILE([if '__add_wait_queue_exclusive' exists],
522 __add_wait_queue_exclusive, [
523 #include <linux/wait.h>
525 wait_queue_head_t queue;
527 __add_wait_queue_exclusive(&queue, &wait);
529 AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1,
530 [__add_wait_queue_exclusive exists])
532 ]) # LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE
535 # LC_FS_STRUCT_RWLOCK
537 # 2.6.36 fs_struct.lock use spinlock instead of rwlock.
539 AC_DEFUN([LC_FS_STRUCT_RWLOCK], [
540 LB_CHECK_COMPILE([if 'fs_struct.lock' use rwlock],
542 #include <asm/atomic.h>
543 #include <linux/spinlock.h>
544 #include <linux/fs_struct.h>
546 ((struct fs_struct *)0)->lock = (rwlock_t){ 0 };
548 AC_DEFINE(HAVE_FS_STRUCT_RWLOCK, 1, [fs_struct.lock use rwlock])
550 ]) # LC_FS_STRUCT_RWLOCK
553 # LC_SBOPS_EVICT_INODE
555 # 2.6.36 super_operations add evict_inode method. it hybird of
556 # delete_inode & clear_inode.
558 AC_DEFUN([LC_SBOPS_EVICT_INODE], [
559 LB_CHECK_COMPILE([if 'super_operations.evict_inode' exist],
560 super_ops_evict_inode, [
561 #include <linux/fs.h>
563 ((struct super_operations *)0)->evict_inode(NULL);
565 AC_DEFINE(HAVE_SBOPS_EVICT_INODE, 1,
566 [super_operations.evict_inode() is exist in kernel])
568 ]) # LC_SBOPS_EVICT_INODE
573 # 2.6.35 file_operations.fsync taken 2 arguments.
574 # 3.0.0 file_operations.fsync takes 4 arguments.
576 AC_DEFUN([LC_FILE_FSYNC], [
577 LB_CHECK_COMPILE([if 'file_operations.fsync' takes 4 arguments],
578 file_ops_fsync_4args, [
579 #include <linux/fs.h>
581 ((struct file_operations *)0)->fsync(NULL, 0, 0, 0);
583 AC_DEFINE(HAVE_FILE_FSYNC_4ARGS, 1,
584 [file_operations.fsync takes 4 arguments])
586 LB_CHECK_COMPILE([if 'file_operations.fsync' takes 2 arguments],
587 file_ops_fsync_2args, [
588 #include <linux/fs.h>
590 ((struct file_operations *)0)->fsync(NULL, 0);
592 AC_DEFINE(HAVE_FILE_FSYNC_2ARGS, 1,
593 [file_operations.fsync takes 2 arguments])
601 # 2.6.37 remove kernel_locked
603 AC_DEFUN([LC_KERNEL_LOCKED], [
604 LB_CHECK_COMPILE([if 'kernel_locked' is defined],
606 #include <linux/smp_lock.h>
610 AC_DEFINE(HAVE_KERNEL_LOCKED, 1, [kernel_locked is defined])
612 ]) # LC_KERNEL_LOCKED
617 # 2.6.38 dentry_operations.d_compare() taken 7 arguments.
619 AC_DEFUN([LC_D_COMPARE_7ARGS], [
620 LB_CHECK_COMPILE([if 'dentry_operations.d_compare()' taken 7 arguments],
621 dentry_ops_d_compare_7arg, [
622 #include <linux/dcache.h>
624 ((struct dentry_operations*)0)->d_compare(NULL,NULL,NULL,NULL,0,NULL,NULL);
626 AC_DEFINE(HAVE_D_COMPARE_7ARGS, 1, [d_compare need 7 arguments])
628 ]) # LC_D_COMPARE_7ARGS
633 # 2.6.38 dentry_operations.d_delete() defined 'const' for 1st parameter.
635 AC_DEFUN([LC_D_DELETE_CONST], [
636 tmp_flags="$EXTRA_KCFLAGS"
637 EXTRA_KCFLAGS="-Werror"
638 LB_CHECK_COMPILE([if 'dentry_operations.d_delete()' has const declare on first parameter],
639 dentry_ops_d_delete_1st_const, [
640 #include <linux/dcache.h>
642 const struct dentry *d = NULL;
643 ((struct dentry_operations*)0)->d_delete(d);
645 AC_DEFINE(HAVE_D_DELETE_CONST, const,
646 [d_delete first parameter declared const])
648 AC_DEFINE(HAVE_D_DELETE_CONST, [],
649 [d_delete first parameter declared is not const])
651 EXTRA_KCFLAGS="$tmp_flags"
652 ]) # LC_D_DELETE_CONST
657 # 2.6.38 dcache_lock removed. rcu-walk committed.
659 AC_DEFUN([LC_DCACHE_LOCK], [
660 LB_CHECK_COMPILE([if 'dcache_lock' is exist],
662 #include <linux/dcache.h>
664 spin_lock(&dcache_lock);
666 AC_DEFINE(HAVE_DCACHE_LOCK, 1,
667 [dcache_lock is exist])
674 # 2.6.38 inode.i_rcu added.
676 AC_DEFUN([LC_INODE_I_RCU], [
677 LB_CHECK_COMPILE([if 'inode.i_rcu' exists],
679 #include <linux/fs.h>
682 struct rcu_head rcu = {};
685 AC_DEFINE(HAVE_INODE_I_RCU, 1,
686 [inode.i_rcu exists])
691 # LC_BLKDEV_GET_BY_DEV
693 # 2.6.38 export blkdev_get_by_dev
695 AC_DEFUN([LC_BLKDEV_GET_BY_DEV], [
696 LB_CHECK_EXPORT([blkdev_get_by_dev], [fs/block_dev.c],
697 [AC_DEFINE(HAVE_BLKDEV_GET_BY_DEV, 1,
698 [blkdev_get_by_dev is exported by the kernel])])
699 ]) # LC_BLKDEV_GET_BY_DEV
702 # LC_EXPORT_SIMPLE_SETATTR
704 # 2.6.38 export simple_setattr
706 AC_DEFUN([LC_EXPORT_SIMPLE_SETATTR], [
707 LB_CHECK_EXPORT([simple_setattr], [fs/libfs.c],
708 [AC_DEFINE(HAVE_SIMPLE_SETATTR, 1,
709 [simple_setattr is exported by the kernel])])
710 ]) # LC_EXPORT_SIMPLE_SETATTR
715 # 2.6.38 add struct blk_plug
717 AC_DEFUN([LC_HAVE_BLK_PLUG], [
718 LB_CHECK_COMPILE([if 'struct blk_plug' exists],
720 #include <linux/blkdev.h>
722 struct blk_plug plug;
724 blk_start_plug(&plug);
725 blk_finish_plug(&plug);
727 AC_DEFINE(HAVE_BLK_PLUG, 1,
728 [blk_plug struct exists])
730 ]) # LC_HAVE_BLK_PLUG
735 # truncate callback removed since 2.6.39
737 AC_DEFUN([LC_IOP_TRUNCATE], [
738 LB_CHECK_COMPILE([if 'inode_operations' has '.truncate' member function],
739 inode_ops_truncate, [
740 #include <linux/fs.h>
742 ((struct inode_operations *)0)->truncate(NULL);
744 AC_DEFINE(HAVE_INODEOPS_TRUNCATE, 1,
745 [inode_operations has .truncate member function])
750 # LC_HAVE_FSTYPE_MOUNT
752 # 2.6.39 replace get_sb with mount in struct file_system_type
754 AC_DEFUN([LC_HAVE_FSTYPE_MOUNT], [
755 LB_CHECK_COMPILE([if 'file_system_type' has 'mount' field],
756 file_system_type_mount, [
757 #include <linux/fs.h>
759 struct file_system_type fst;
760 void *i = (void *) fst.mount;
762 AC_DEFINE(HAVE_FSTYPE_MOUNT, 1,
763 [struct file_system_type has mount field])
765 ]) # LC_HAVE_FSTYPE_MOUNT
768 # LC_HAVE_FHANDLE_SYSCALLS
770 # 2.6.39 The open_by_handle_at() and name_to_handle_at() system calls were
771 # added to Linux kernel 2.6.39.
772 # Check if client supports these functions
774 AC_DEFUN([LC_HAVE_FHANDLE_SYSCALLS], [
775 LB_CHECK_CONFIG_IM([FHANDLE],[
776 AC_DEFINE(HAVE_FHANDLE_SYSCALLS, 1,
777 [kernel supports fhandles and related syscalls])
779 ]) # LC_HAVE_FHANDLE_SYSCALLS
782 # LC_HAVE_INODE_OWNER_OR_CAPABLE
784 # 2.6.39 renames is_owner_or_cap to inode_owner_or_capable
786 AC_DEFUN([LC_HAVE_INODE_OWNER_OR_CAPABLE], [
787 LB_CHECK_COMPILE([if 'inode_owner_or_capable' exist],
788 inode_owner_or_capable, [
789 #include <linux/fs.h>
791 inode_owner_or_capable(NULL);
793 AC_DEFINE(HAVE_INODE_OWNER_OR_CAPABLE, 1,
794 [inode_owner_or_capable exist])
796 ]) # LC_HAVE_INODE_OWNER_OR_CAPABLE
799 # LC_DIRTY_INODE_WITH_FLAG
801 # 3.0 dirty_inode() has a flag parameter
802 # see kernel commit aa38572954ade525817fe88c54faebf85e5a61c0
804 AC_DEFUN([LC_DIRTY_INODE_WITH_FLAG], [
805 LB_CHECK_COMPILE([if 'dirty_inode' super_operation takes flag],
806 dirty_inode_super_operation_flag, [
807 #include <linux/fs.h>
810 inode->i_sb->s_op->dirty_inode(NULL, 0);
812 AC_DEFINE(HAVE_DIRTY_INODE_HAS_FLAG, 1,
813 [dirty_inode super_operation takes flag])
815 ]) # LC_DIRTY_INODE_WITH_FLAG
820 # 3.0 introduced setns
822 AC_DEFUN([LC_SETNS], [
823 AC_CHECK_HEADERS([sched.h], [], [],
826 AC_CHECK_FUNCS([setns])
830 # LC_GENERIC_PERMISSION
832 # 2.6.38 generic_permission taken 4 parameters.
833 # in fact, it means rcu-walk aware permission bring.
835 # 3.1 generic_permission taken 2 parameters.
836 # see kernel commit 2830ba7f34ebb27c4e5b8b6ef408cd6d74860890
838 AC_DEFUN([LC_GENERIC_PERMISSION], [
839 LB_CHECK_COMPILE([if 'generic_permission' take 2 arguments],
840 generic_permission_2args, [
841 #include <linux/fs.h>
843 generic_permission(NULL, 0);
845 AC_DEFINE(HAVE_GENERIC_PERMISSION_2ARGS, 1,
846 [generic_permission taken 2 arguments])
848 LB_CHECK_COMPILE([if 'generic_permission' take 4 arguments],
849 generic_permission_4args, [
850 #include <linux/fs.h>
852 generic_permission(NULL, 0, 0, NULL);
854 AC_DEFINE(HAVE_GENERIC_PERMISSION_4ARGS, 1,
855 [generic_permission taken 4 arguments])
858 ]) # LC_GENERIC_PERMISSION
861 # LC_LM_XXX_LOCK_MANAGER_OPS
863 # 3.1 renames lock-manager ops(lock_manager_operations) from fl_xxx to lm_xxx
864 # see kernel commit 8fb47a4fbf858a164e973b8ea8ef5e83e61f2e50
866 AC_DEFUN([LC_LM_XXX_LOCK_MANAGER_OPS], [
867 LB_CHECK_COMPILE([if 'lock-manager' ops renamed to 'lm_xxx'],
868 lock_manager_ops_lm_xxx, [
869 #include <linux/fs.h>
871 struct lock_manager_operations lm_ops;
872 lm_ops.lm_compare_owner = NULL;
874 AC_DEFINE(HAVE_LM_XXX_LOCK_MANAGER_OPS, 1,
875 [lock-manager ops renamed to lm_xxx])
877 ]) # LC_LM_XXX_LOCK_MANAGER_OPS
882 # 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait
884 # see kernel commit bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3
886 AC_DEFUN([LC_INODE_DIO_WAIT], [
887 LB_CHECK_COMPILE([if 'inode->i_alloc_sem' is killed and use inode_dio_wait],
889 #include <linux/fs.h>
891 inode_dio_wait((struct inode *)0);
893 AC_DEFINE(HAVE_INODE_DIO_WAIT, 1,
894 [inode->i_alloc_sem is killed and use inode_dio_wait])
896 ]) # LC_INODE_DIO_WAIT
901 # 3.1 adds get_acl method to inode_operations to read ACL from disk.
902 # see kernel commit 4e34e719e457f2e031297175410fc0bd4016a085
904 AC_DEFUN([LC_IOP_GET_ACL], [
905 LB_CHECK_COMPILE([if 'inode_operations' has '.get_acl' member function],
907 #include <linux/fs.h>
909 struct inode_operations iop;
912 AC_DEFINE(HAVE_IOP_GET_ACL, 1,
913 [inode_operations has .get_acl member function])
918 # LC_FILE_LLSEEK_SIZE
920 # 3.1 introduced generic_file_llseek_size()
922 AC_DEFUN([LC_FILE_LLSEEK_SIZE], [
923 LB_CHECK_EXPORT([generic_file_llseek_size], [fs/read_write.c],
924 [AC_DEFINE(HAVE_FILE_LLSEEK_SIZE, 1,
925 [generic_file_llseek_size is exported by the kernel])])
926 ]) # LC_FILE_LLSEEK_SIZE
929 # LC_RADIX_EXCEPTION_ENTRY
930 # 3.1 adds radix_tree_exception_entry.
932 AC_DEFUN([LC_RADIX_EXCEPTION_ENTRY], [
933 LB_CHECK_COMPILE([radix_tree_exceptional_entry exist],
934 radix_tree_exceptional_entry, [
935 #include <linux/radix-tree.h>
937 radix_tree_exceptional_entry(NULL);
939 AC_DEFINE(HAVE_RADIX_EXCEPTION_ENTRY, 1,
940 [radix_tree_exceptional_entry exist])
942 ]) # LC_RADIX_EXCEPTION_ENTRY
945 # LC_HAVE_PROTECT_I_NLINK
947 # 3.2 protects inode->i_nlink from direct modification
948 # see kernel commit a78ef704a8dd430225955f0709b22d4a6ba21deb
949 # at the same time adds set_nlink(), so checks set_nlink() for it.
951 AC_DEFUN([LC_HAVE_PROTECT_I_NLINK], [
952 LB_CHECK_COMPILE([if 'inode->i_nlink' is protected from direct modification],
953 inode_i_nlink_protected, [
954 #include <linux/fs.h>
959 AC_DEFINE(HAVE_PROTECT_I_NLINK, 1,
960 [inode->i_nlink is protected from direct modification])
962 ]) # LC_HAVE_PROTECT_I_NLINK
965 # 2.6.39 security_inode_init_security takes a 'struct qstr' parameter
967 # 3.2 security_inode_init_security takes a callback to set xattrs
969 AC_DEFUN([LC_HAVE_SECURITY_IINITSEC], [
970 LB_CHECK_COMPILE([if security_inode_init_security takes a callback],
971 security_inode_init_security_callback, [
972 #include <linux/security.h>
974 security_inode_init_security(NULL, NULL, NULL, (const initxattrs)NULL, NULL);
976 AC_DEFINE(HAVE_SECURITY_IINITSEC_CALLBACK, 1,
977 [security_inode_init_security takes a callback to set xattrs])
979 LB_CHECK_COMPILE([if security_inode_init_security takes a 'struct qstr' parameter],
980 security_inode_init_security_qstr, [
981 #include <linux/security.h>
983 security_inode_init_security(NULL, NULL, (struct qstr *)NULL, NULL, NULL, NULL);
985 AC_DEFINE(HAVE_SECURITY_IINITSEC_QSTR, 1,
986 [security_inode_init_security takes a 'struct qstr' parameter])
989 ]) # LC_HAVE_SECURITY_IINITSEC
992 # LC_HAVE_MIGRATE_HEADER
994 # 3.3 introduces migrate_mode.h and migratepage has 4 args
996 AC_DEFUN([LC_HAVE_MIGRATE_HEADER], [
997 LB_CHECK_FILE([$LINUX/include/linux/migrate.h], [
998 AC_DEFINE(HAVE_MIGRATE_H, 1,
999 [kernel has include/linux/migrate.h])
1001 LB_CHECK_FILE([$LINUX/include/linux/migrate_mode.h], [
1002 AC_DEFINE(HAVE_MIGRATE_MODE_H, 1,
1003 [kernel has include/linux/migrate_mode.h])
1006 ]) # LC_HAVE_MIGRATE_HEADER
1009 # LC_MIGRATEPAGE_4ARGS
1011 AC_DEFUN([LC_MIGRATEPAGE_4ARGS], [
1012 LB_CHECK_COMPILE([if 'address_space_operations.migratepage' has 4 args],
1013 address_space_ops_migratepage_4args, [
1014 #include <linux/fs.h>
1015 #ifdef HAVE_MIGRATE_H
1016 #include <linux/migrate.h>
1017 #elif defined(HAVE_MIGRATE_MODE_H)
1018 #include <linux/migrate_mode.h>
1021 struct address_space_operations aops;
1022 aops.migratepage(NULL, NULL, NULL, MIGRATE_ASYNC);
1024 AC_DEFINE(HAVE_MIGRATEPAGE_4ARGS, 1,
1025 [address_space_operations.migratepage has 4 args])
1027 ]) # LC_MIGRATEPAGE_4ARGS
1030 # LC_SUPEROPS_USE_DENTRY
1032 # 3.3 switchs super_operations to use dentry as parameter (but not vfsmount)
1033 # see kernel commit 34c80b1d93e6e20ca9dea0baf583a5b5510d92d4
1035 AC_DEFUN([LC_SUPEROPS_USE_DENTRY], [
1036 tmp_flags="$EXTRA_KCFLAGS"
1037 EXTRA_KCFLAGS="-Werror"
1038 LB_CHECK_COMPILE([if 'super_operations' use 'dentry' as parameter],
1040 #include <linux/fs.h>
1041 int show_options(struct seq_file *seq, struct dentry *root) {
1045 struct super_operations ops;
1046 ops.show_options = show_options;
1048 AC_DEFINE(HAVE_SUPEROPS_USE_DENTRY, 1,
1049 [super_operations use dentry as parameter])
1051 EXTRA_KCFLAGS="$tmp_flags"
1052 ]) # LC_SUPEROPS_USE_DENTRY
1055 # LC_INODEOPS_USE_UMODE_T
1057 # 3.3 switchs inode_operations to use umode_t as parameter (but not int)
1058 # see kernel commit 1a67aafb5f72a436ca044293309fa7e6351d6a35
1060 AC_DEFUN([LC_INODEOPS_USE_UMODE_T], [
1061 tmp_flags="$EXTRA_KCFLAGS"
1062 EXTRA_KCFLAGS="-Werror"
1063 LB_CHECK_COMPILE([if 'inode_operations' use 'umode_t' as parameter],
1064 inode_ops_umode_t, [
1065 #include <linux/fs.h>
1066 #include <linux/types.h>
1067 int my_mknod(struct inode *dir, struct dentry *dchild,
1068 umode_t mode, dev_t dev)
1073 struct inode_operations ops;
1074 ops.mknod = my_mknod;
1076 AC_DEFINE(HAVE_INODEOPS_USE_UMODE_T, 1,
1077 [inode_operations use umode_t as parameter])
1079 EXTRA_KCFLAGS="$tmp_flags"
1080 ]) # LC_INODEOPS_USE_UMODE_T
1083 # LC_KMAP_ATOMIC_HAS_1ARG
1085 # 3.4 kmap_atomic removes second argument
1086 # see kernel commit 1ec9c5ddc17aa398f05646abfcbaf315b544e62f
1088 AC_DEFUN([LC_KMAP_ATOMIC_HAS_1ARG], [
1089 LB_CHECK_COMPILE([if 'kmap_atomic' has only 1 argument],
1091 #include <linux/highmem.h>
1095 AC_DEFINE(HAVE_KMAP_ATOMIC_HAS_1ARG, 1,
1096 [have kmap_atomic has only 1 argument])
1098 ]) # LC_KMAP_ATOMIC_HAS_1ARG
1101 # LC_HAVE_D_MAKE_ROOT
1103 # 3.4 converts d_alloc_root to d_make_root
1104 # see kernel commit 32991ab305ace7017c62f8eecbe5eb36dc32e13b
1106 AC_DEFUN([LC_HAVE_D_MAKE_ROOT], [
1107 LB_CHECK_COMPILE([if have 'd_make_root'],
1109 #include <linux/fs.h>
1111 d_make_root((struct inode *)NULL);
1113 AC_DEFINE(HAVE_D_MAKE_ROOT, 1,
1116 ]) # LC_HAVE_D_MAKE_ROOT
1119 # LC_HAVE_CACHE_REGISTER
1121 # 3.4 cache_register/cache_unregister are removed
1122 # see kernel commit 2c5f846747526e2b83c5f1b8e69016be0e2e87c0
1123 # Note, since 2.6.37 cache_register_net/cache_unregister_net
1124 # are defined, but not exported.
1125 # 3.3 cache_register_net/cache_unregister_net are
1126 # exported and replacing cache_register/cache_unregister in 3.4
1128 AC_DEFUN([LC_HAVE_CACHE_REGISTER], [
1129 LB_CHECK_COMPILE([if have 'cache_register'],
1131 #include <linux/sunrpc/cache.h>
1133 cache_register(NULL);
1135 AC_DEFINE(HAVE_CACHE_REGISTER, 1,
1136 [have cache_register])
1138 ]) # LC_HAVE_CACHE_REGISTER
1141 # LC_HAVE_CLEAR_INODE
1143 # 3.5 renames end_writeback() back to clear_inode()...
1144 # see kernel commit dbd5768f87ff6fb0a4fe09c4d7b6c4a24de99430
1146 AC_DEFUN([LC_HAVE_CLEAR_INODE], [
1147 LB_CHECK_COMPILE([if have 'clear_inode'],
1149 #include <linux/fs.h>
1151 clear_inode((struct inode *)NULL);
1153 AC_DEFINE(HAVE_CLEAR_INODE, 1,
1156 ]) # LC_HAVE_CLEAR_INODE
1159 # LC_HAVE_ENCODE_FH_PARENT
1161 # 3.5 encode_fh has parent inode passed in directly
1162 # see kernel commit b0b0382b
1164 AC_DEFUN([LC_HAVE_ENCODE_FH_PARENT], [
1165 tmp_flags="$EXTRA_KCFLAGS"
1166 EXTRA_KCFLAGS="-Werror"
1167 LB_CHECK_COMPILE([if 'encode_fh' have parent inode as parameter],
1168 encode_fh_parent_inode, [
1169 #include <linux/exportfs.h>
1170 #include <linux/fs.h>
1171 #include <linux/types.h>
1172 int ll_encode_fh(struct inode *i, __u32 *a, int *b, struct inode *p)
1177 struct export_operations exp_op;
1178 exp_op.encode_fh = ll_encode_fh;
1180 AC_DEFINE(HAVE_ENCODE_FH_PARENT, 1,
1181 [have parent inode as parameter])
1183 EXTRA_KCFLAGS="$tmp_flags"
1184 ]) # LC_HAVE_ENCODE_FH_PARENT
1187 # LC_FILE_LLSEEK_SIZE_5ARG
1189 # 3.5 has generic_file_llseek_size with 5 args
1191 AC_DEFUN([LC_FILE_LLSEEK_SIZE_5ARG], [
1192 LB_CHECK_COMPILE([if Linux kernel has 'generic_file_llseek_size' with 5 args],
1193 generic_file_llseek_size_5args, [
1194 #include <linux/fs.h>
1196 generic_file_llseek_size(NULL, 0, 0, 0, 0);
1198 AC_DEFINE(HAVE_FILE_LLSEEK_SIZE_5ARGS, 1,
1199 [kernel has generic_file_llseek_size with 5 args])
1201 ]) # LC_FILE_LLSEEK_SIZE_5ARG
1204 # LC_LLITE_DATA_IS_LIST
1206 # 3.6 switch i_dentry/d_alias from list to hlist
1208 # In the upstream kernels d_alias first changes
1209 # to a hlist and then in later version, 3.11, gets
1210 # moved to the union d_u. Due to some distros having
1211 # d_alias in the d_u union as a struct list, which
1212 # has never existed upstream stream, we can't test
1213 # if d_alias is a list or hlist directly. If ever
1214 # i_dentry and d_alias even up different combos then
1215 # the build will fail. In that case then we will need
1216 # to separate out the i_dentry and d_alias test below.
1218 AC_DEFUN([LC_DATA_FOR_LLITE_IS_LIST], [
1219 tmp_flags="$EXTRA_KCFLAGS"
1220 EXTRA_KCFLAGS="-Werror"
1221 LB_CHECK_COMPILE([if 'i_dentry/d_alias' uses 'list'],
1222 i_dentry_d_alias_list, [
1223 #include <linux/fs.h>
1226 INIT_LIST_HEAD(&inode.i_dentry);
1228 AC_DEFINE(DATA_FOR_LLITE_IS_LIST, 1,
1229 [both i_dentry/d_alias uses list])
1231 EXTRA_KCFLAGS="$tmp_flags"
1232 ]) # LC_DATA_FOR_LLITE_IS_LIST
1235 # LC_DENTRY_OPEN_USE_PATH
1237 # 3.6 dentry_open uses struct path as first argument
1238 # see kernel commit 765927b2
1240 AC_DEFUN([LC_DENTRY_OPEN_USE_PATH], [
1241 tmp_flags="$EXTRA_KCFLAGS"
1242 EXTRA_KCFLAGS="-Werror"
1243 LB_CHECK_COMPILE([if 'dentry_open' uses 'struct path' as first argument],
1245 #include <linux/fs.h>
1246 #include <linux/path.h>
1249 dentry_open(&path, 0, NULL);
1251 AC_DEFINE(HAVE_DENTRY_OPEN_USE_PATH, 1,
1252 [dentry_open uses struct path as first argument])
1254 EXTRA_KCFLAGS="$tmp_flags"
1255 ]) # LC_DENTRY_OPEN_USE_PATH
1258 # LC_HAVE_IOP_ATOMIC_OPEN
1260 # 3.6 vfs adds iop->atomic_open
1262 AC_DEFUN([LC_HAVE_IOP_ATOMIC_OPEN], [
1263 LB_CHECK_COMPILE([if 'iop' has 'atomic_open'],
1264 inode_ops_atomic_open, [
1265 #include <linux/fs.h>
1267 struct inode_operations iop;
1268 iop.atomic_open = NULL;
1270 AC_DEFINE(HAVE_IOP_ATOMIC_OPEN, 1,
1271 [have iop atomic_open])
1273 ]) # LC_HAVE_IOP_ATOMIC_OPEN
1276 # LC_HAVE_SB_START_WRITE
1278 # RHEL6 2.6.32, 3.6 or newer support wrapped FS freeze functions
1280 AC_DEFUN([LC_HAVE_SB_START_WRITE], [
1281 LB_CHECK_COMPILE([if kernel supports wrapped FS freeze functions],
1283 #include <linux/fs.h>
1285 sb_start_write(NULL);
1287 AC_DEFINE(HAVE_SB_START_WRITE, 1,
1288 [kernel supports wrapped FS freeze functions])
1290 ]) # LC_HAVE_SB_START_WRITE
1293 # LC_HAVE_POSIXACL_USER_NS
1295 # 3.7 posix_acl_{to,from}_xattr take struct user_namespace
1297 AC_DEFUN([LC_HAVE_POSIXACL_USER_NS], [
1298 LB_CHECK_COMPILE([if 'posix_acl_to_xattr' takes 'struct user_namespace'],
1299 posix_acl_to_xattr_user_namespace, [
1300 #include <linux/fs.h>
1301 #include <linux/posix_acl_xattr.h>
1303 posix_acl_to_xattr((struct user_namespace *)NULL, NULL, NULL, 0);
1305 AC_DEFINE(HAVE_POSIXACL_USER_NS, 1,
1306 [posix_acl_to_xattr takes struct user_namespace])
1308 ]) # LC_HAVE_POSIXACL_USER_NS
1311 # LC_HAVE_FILE_F_INODE
1313 # 3.8 struct file has new member f_inode
1315 AC_DEFUN([LC_HAVE_FILE_F_INODE], [
1316 LB_CHECK_COMPILE([if 'struct file' has member 'f_inode'],
1318 #include <linux/fs.h>
1320 ((struct file *)0)->f_inode = NULL;
1322 AC_DEFINE(HAVE_FILE_F_INODE, 1,
1323 [struct file has member f_inode])
1325 ]) # LC_HAVE_FILE_F_INODE
1328 # LC_HAVE_FILE_INODE
1330 # 3.8 has introduced inline function file_inode
1332 AC_DEFUN([LC_HAVE_FILE_INODE], [
1333 LB_CHECK_COMPILE([if file_inode() exists],
1335 #include <linux/fs.h>
1339 AC_DEFINE(HAVE_FILE_INODE, 1,
1340 [file_inode() has been defined])
1342 ]) # LC_HAVE_FILE_INODE
1345 # LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
1347 AC_DEFUN([LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS], [
1348 LB_CHECK_COMPILE([if 'sunrpc_cache_pipe_upcall' takes 3 args],
1349 sunrpc_cache_pipe_upcall_3args, [
1350 #include <linux/sunrpc/cache.h>
1352 sunrpc_cache_pipe_upcall(NULL, NULL, NULL);
1354 AC_DEFINE(HAVE_SUNRPC_UPCALL_HAS_3ARGS, 1,
1355 [sunrpc_cache_pipe_upcall takes 3 args])
1357 ]) # LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
1360 # LC_HAVE_HLIST_FOR_EACH_3ARG
1362 # 3.9 uses hlist_for_each_entry with 3 args
1363 # b67bfe0d42cac56c512dd5da4b1b347a23f4b70a
1365 AC_DEFUN([LC_HAVE_HLIST_FOR_EACH_3ARG], [
1366 LB_CHECK_COMPILE([if 'hlist_for_each_entry' has 3 args],
1367 hlist_for_each_entry_3args, [
1368 #include <linux/list.h>
1369 #include <linux/fs.h>
1371 struct hlist_head *head = NULL;
1372 struct inode *inode;
1374 hlist_for_each_entry(inode, head, i_hash) {
1378 AC_DEFINE(HAVE_HLIST_FOR_EACH_3ARG, 1,
1379 [hlist_for_each_entry has 3 args])
1381 ]) # LC_HAVE_HLIST_FOR_EACH_3ARG
1384 # LC_HAVE_BIO_END_SECTOR
1386 # 3.9 introduces bio_end_sector macro
1387 # f73a1c7d117d07a96d89475066188a2b79e53c48
1389 AC_DEFUN([LC_HAVE_BIO_END_SECTOR], [
1390 LB_CHECK_COMPILE([if 'bio_end_sector' is defined],
1392 #include <linux/bio.h>
1396 bio_end_sector(&bio);
1398 AC_DEFINE(HAVE_BIO_END_SECTOR, 1,
1399 [bio_end_sector is defined])
1401 ]) # LC_HAVE_BIO_END_SECTOR
1404 # 3.9 created is_sxid
1406 AC_DEFUN([LC_HAVE_IS_SXID], [
1407 LB_CHECK_COMPILE([if 'is_sxid' is defined],
1409 #include <linux/fs.h>
1413 is_sxid(inode.i_mode);
1415 AC_DEFINE(HAVE_IS_SXID, 1, [is_sxid is defined])
1417 ]) # LC_HAVE_IS_SXID
1420 # LC_HAVE_REMOVE_PROC_SUBTREE
1422 # 3.10 introduced remove_proc_subtree
1424 AC_DEFUN([LC_HAVE_REMOVE_PROC_SUBTREE], [
1425 LB_CHECK_COMPILE([if 'remove_proc_subtree' is defined],
1426 remove_proc_subtree, [
1427 #include <linux/proc_fs.h>
1429 remove_proc_subtree(NULL, NULL);
1431 AC_DEFINE(HAVE_REMOVE_PROC_SUBTREE, 1,
1432 [remove_proc_subtree is defined])
1434 ]) # LC_HAVE_REMOVE_PROC_SUBTREE
1437 # LC_HAVE_PROC_REMOVE
1439 # 3.10 introduced proc_remove
1441 AC_DEFUN([LC_HAVE_PROC_REMOVE], [
1442 LB_CHECK_COMPILE([if 'proc_remove' is defined],
1444 #include <linux/proc_fs.h>
1448 AC_DEFINE(HAVE_PROC_REMOVE, 1,
1449 [proc_remove is defined])
1451 ]) # LC_HAVE_PROC_REMOVE
1453 AC_DEFUN([LC_HAVE_PROJECT_QUOTA], [
1454 LB_CHECK_COMPILE([if get_projid exists],
1456 #include <linux/quota.h>
1458 struct dquot_operations ops;
1460 ops.get_projid(NULL, NULL);
1462 AC_DEFINE(HAVE_PROJECT_QUOTA, 1,
1463 [get_projid function exists])
1465 ]) # LC_HAVE_PROJECT_QUOTA
1469 # LC_HAVE_SECURITY_DENTRY_INIT_SECURITY
1471 # 3.10 introduced security_dentry_init_security()
1473 AC_DEFUN([LC_HAVE_SECURITY_DENTRY_INIT_SECURITY], [
1474 LB_CHECK_COMPILE([if 'security_dentry_init_security' is defined],
1475 security_dentry_init_security, [
1476 #include <linux/security.h>
1478 security_dentry_init_security(NULL, 0, NULL, NULL, NULL);
1480 AC_DEFINE(HAVE_SECURITY_DENTRY_INIT_SECURITY, 1,
1481 [security_dentry_init_security' is defined])
1483 ]) # LC_HAVE_SECURITY_DENTRY_INIT_SECURITY
1486 # LC_INVALIDATE_RANGE
1488 # 3.11 invalidatepage requires the length of the range to invalidate
1490 AC_DEFUN([LC_INVALIDATE_RANGE], [
1491 LB_CHECK_COMPILE([if 'address_space_operations.invalidatepage' requires 3 arguments],
1492 address_space_ops_invalidatepage_3args, [
1493 #include <linux/fs.h>
1495 struct address_space_operations a_ops;
1496 a_ops.invalidatepage(NULL, 0, 0);
1498 AC_DEFINE(HAVE_INVALIDATE_RANGE, 1,
1499 [address_space_operations.invalidatepage needs 3 arguments])
1501 ]) # LC_INVALIDATE_RANGE
1504 # LC_HAVE_DIR_CONTEXT
1506 # 3.11 readdir now takes the new struct dir_context
1508 AC_DEFUN([LC_HAVE_DIR_CONTEXT], [
1509 LB_CHECK_COMPILE([if 'dir_context' exist],
1511 #include <linux/fs.h>
1513 struct dir_context ctx;
1516 AC_DEFINE(HAVE_DIR_CONTEXT, 1,
1517 [dir_context exist])
1519 ]) # LC_HAVE_DIR_CONTEXT
1522 # LC_D_COMPARE_5ARGS
1524 # 3.11 dentry_operations.d_compare() taken 5 arguments.
1526 AC_DEFUN([LC_D_COMPARE_5ARGS], [
1527 LB_CHECK_COMPILE([if 'd_compare' taken 5 arguments],
1529 #include <linux/dcache.h>
1531 ((struct dentry_operations*)0)->d_compare(NULL,NULL,0,NULL,NULL);
1533 AC_DEFINE(HAVE_D_COMPARE_5ARGS, 1,
1534 [d_compare need 5 arguments])
1536 ]) # LC_D_COMPARE_5ARGS
1541 # 3.11 need to access d_count to get dentry reference count
1543 AC_DEFUN([LC_HAVE_DCOUNT], [
1544 LB_CHECK_COMPILE([if 'd_count' exist],
1546 #include <linux/dcache.h>
1551 AC_DEFINE(HAVE_D_COUNT, 1,
1557 # LC_PID_NS_FOR_CHILDREN
1559 # 3.11 replaces pid_ns by pid_ns_for_children in struct nsproxy
1561 AC_DEFUN([LC_PID_NS_FOR_CHILDREN], [
1562 LB_CHECK_COMPILE([if 'struct nsproxy' has 'pid_ns_for_children'],
1563 pid_ns_for_children, [
1564 #include <linux/nsproxy.h>
1567 ns.pid_ns_for_children = NULL;
1569 AC_DEFINE(HAVE_PID_NS_FOR_CHILDREN, 1,
1570 ['struct nsproxy' has 'pid_ns_for_children'])
1572 ]) # LC_PID_NS_FOR_CHILDREN
1575 # LC_OLDSIZE_TRUNCATE_PAGECACHE
1577 # 3.12 truncate_pagecache without oldsize parameter
1579 AC_DEFUN([LC_OLDSIZE_TRUNCATE_PAGECACHE], [
1580 LB_CHECK_COMPILE([if 'truncate_pagecache' with 'old_size' parameter],
1581 truncate_pagecache_old_size, [
1582 #include <linux/mm.h>
1584 truncate_pagecache(NULL, 0, 0);
1586 AC_DEFINE(HAVE_OLDSIZE_TRUNCATE_PAGECACHE, 1,
1589 ]) # LC_OLDSIZE_TRUNCATE_PAGECACHE
1592 # LC_HAVE_DENTRY_D_U_D_ALIAS
1594 # 3.11 kernel moved d_alias to the union d_u in struct dentry
1596 # Some distros move d_alias to d_u but it is still a struct list
1598 AC_DEFUN([LC_HAVE_DENTRY_D_U_D_ALIAS], [
1599 AS_IF([test "x$lb_cv_compile_i_dentry_d_alias_list" = xyes], [
1600 LB_CHECK_COMPILE([if list 'dentry.d_u.d_alias' exist],
1602 #include <linux/list.h>
1603 #include <linux/dcache.h>
1606 INIT_LIST_HEAD(&de.d_u.d_alias);
1608 AC_DEFINE(HAVE_DENTRY_D_U_D_ALIAS, 1,
1609 [list dentry.d_u.d_alias exist])
1612 LB_CHECK_COMPILE([if hlist 'dentry.d_u.d_alias' exist],
1614 #include <linux/list.h>
1615 #include <linux/dcache.h>
1618 INIT_HLIST_NODE(&de.d_u.d_alias);
1620 AC_DEFINE(HAVE_DENTRY_D_U_D_ALIAS, 1,
1621 [hlist dentry.d_u.d_alias exist])
1624 ]) # LC_HAVE_DENTRY_D_U_D_ALIAS
1627 # LC_HAVE_DENTRY_D_CHILD
1629 # 3.11 kernel d_child has been moved out of the union d_u
1632 AC_DEFUN([LC_HAVE_DENTRY_D_CHILD], [
1633 LB_CHECK_COMPILE([if 'dentry.d_child' exist],
1635 #include <linux/list.h>
1636 #include <linux/dcache.h>
1639 INIT_LIST_HEAD(&de.d_child);
1641 AC_DEFINE(HAVE_DENTRY_D_CHILD, 1,
1642 [dentry.d_child exist])
1644 ]) # LC_HAVE_DENTRY_D_CHILD
1649 # 3.12 ki_left removed from struct kiocb
1651 AC_DEFUN([LC_KIOCB_KI_LEFT], [
1652 LB_CHECK_COMPILE([if 'struct kiocb' with 'ki_left' member],
1654 #include <linux/aio.h>
1656 ((struct kiocb*)0)->ki_left = 0;
1658 AC_DEFINE(HAVE_KIOCB_KI_LEFT, 1,
1661 ]) # LC_KIOCB_KI_LEFT
1664 # LC_VFS_RENAME_5ARGS
1666 # 3.13 has vfs_rename with 5 args
1668 AC_DEFUN([LC_VFS_RENAME_5ARGS], [
1669 LB_CHECK_COMPILE([if Linux kernel has 'vfs_rename' with 5 args],
1671 #include <linux/fs.h>
1673 vfs_rename(NULL, NULL, NULL, NULL, NULL);
1675 AC_DEFINE(HAVE_VFS_RENAME_5ARGS, 1,
1676 [kernel has vfs_rename with 5 args])
1678 ]) # LC_VFS_RENAME_5ARGS
1681 # LC_VFS_UNLINK_3ARGS
1683 # 3.13 has vfs_unlink with 3 args
1685 AC_DEFUN([LC_VFS_UNLINK_3ARGS], [
1686 LB_CHECK_COMPILE([if Linux kernel has 'vfs_unlink' with 3 args],
1688 #include <linux/fs.h>
1690 vfs_unlink(NULL, NULL, NULL);
1692 AC_DEFINE(HAVE_VFS_UNLINK_3ARGS, 1,
1693 [kernel has vfs_unlink with 3 args])
1695 ]) # LC_VFS_UNLINK_3ARGS
1700 # 3.14 move some of its data in struct bio into the new
1703 AC_DEFUN([LC_HAVE_BVEC_ITER], [
1704 LB_CHECK_COMPILE([if Linux kernel has struct bvec_iter],
1706 #include <linux/bio.h>
1708 struct bvec_iter iter;
1709 iter.bi_bvec_done = 0;
1711 AC_DEFINE(HAVE_BVEC_ITER, 1,
1712 [kernel has struct bvec_iter])
1714 ]) # LC_HAVE_BVEC_ITER
1719 # 3.14 adds set_acl method to inode_operations
1720 # see kernel commit 893d46e443346370cd4ea81d9d35f72952c62a37
1722 AC_DEFUN([LC_IOP_SET_ACL], [
1723 LB_CHECK_COMPILE([if 'inode_operations' has '.set_acl' member function],
1724 inode_ops_set_acl, [
1725 #include <linux/fs.h>
1727 struct inode_operations iop;
1730 AC_DEFINE(HAVE_IOP_SET_ACL, 1,
1731 [inode_operations has .set_acl member function])
1738 # 4.4 redefined bi_cnt as __bi_cnt
1740 AC_DEFUN([LC_HAVE_BI_CNT], [
1741 LB_CHECK_COMPILE([if Linux kernel has bi_cnt in struct bio],
1743 #include <asm/atomic.h>
1744 #include <linux/bio.h>
1748 cnt = atomic_read(&bio.bi_cnt);
1750 AC_DEFINE(HAVE_BI_CNT, 1,
1751 [struct bio has bi_cnt])
1756 # LC_HAVE_TRUNCATE_IPAGE_FINAL
1758 # 3.14 bring truncate_inode_pages_final for evict_inode
1760 AC_DEFUN([LC_HAVE_TRUNCATE_IPAGES_FINAL], [
1761 LB_CHECK_COMPILE([if Linux kernel has truncate_inode_pages_final],
1762 truncate_ipages_final, [
1763 #include <linux/mm.h>
1765 truncate_inode_pages_final(NULL);
1767 AC_DEFINE(HAVE_TRUNCATE_INODE_PAGES_FINAL, 1,
1768 [kernel has truncate_inode_pages_final])
1770 ]) # LC_HAVE_TRUNCATE_IPAGES_FINAL
1773 # LC_IOPS_RENAME_WITH_FLAGS
1775 # 3.14 has inode_operations->rename with 5 args
1776 # commit 520c8b16505236fc82daa352e6c5e73cd9870cff
1778 AC_DEFUN([LC_IOPS_RENAME_WITH_FLAGS], [
1779 LB_CHECK_COMPILE([if 'inode_operations->rename' taken flags as argument],
1780 iops_rename_with_flags, [
1781 #include <linux/fs.h>
1783 struct inode *i1 = NULL, *i2 = NULL;
1784 struct dentry *d1 = NULL, *d2 = NULL;
1786 rc = ((struct inode_operations *)0)->rename(i1, d1, i2, d2, 0);
1788 AC_DEFINE(HAVE_IOPS_RENAME_WITH_FLAGS, 1,
1789 [inode_operations->rename need flags as argument])
1791 ]) # LC_IOPS_RENAME_WITH_FLAGS
1794 # LC_VFS_RENAME_6ARGS
1796 # 3.15 has vfs_rename with 6 args
1798 AC_DEFUN([LC_VFS_RENAME_6ARGS], [
1799 LB_CHECK_COMPILE([if Linux kernel has 'vfs_rename' with 6 args],
1801 #include <linux/fs.h>
1803 vfs_rename(NULL, NULL, NULL, NULL, NULL, NULL);
1805 AC_DEFINE(HAVE_VFS_RENAME_6ARGS, 1,
1806 [kernel has vfs_rename with 6 args])
1808 ]) # LC_VFS_RENAME_6ARGS
1811 # LC_DIRECTIO_USE_ITER
1813 # 3.16 kernel changes direct IO to use iov_iter
1815 AC_DEFUN([LC_DIRECTIO_USE_ITER], [
1816 LB_CHECK_COMPILE([if direct IO uses iov_iter],
1818 #include <linux/fs.h>
1820 struct address_space_operations ops;
1821 struct iov_iter *iter = NULL;
1824 ops.direct_IO(0, NULL, iter, offset);
1826 AC_DEFINE(HAVE_DIRECTIO_ITER, 1,
1827 [direct IO uses iov_iter])
1829 ]) # LC_DIRECTIO_USE_ITER
1832 # LC_HAVE_IOV_ITER_INIT_DIRECTION
1835 # 3.16 linux commit 71d8e532b1549a478e6a6a8a44f309d050294d00
1836 # changed iov_iter_init api to start accepting a tag
1837 # that defines if its a read or write operation
1839 AC_DEFUN([LC_HAVE_IOV_ITER_INIT_DIRECTION], [
1840 tmp_flags="$EXTRA_KCFLAGS"
1841 EXTRA_KCFLAGS="-Werror"
1842 LB_CHECK_COMPILE([if 'iov_iter_init' takes a tag],
1844 #include <linux/uio.h>
1845 #include <linux/fs.h>
1847 const struct iovec *iov = NULL;
1849 iov_iter_init(NULL, READ, iov, 1, 0);
1851 AC_DEFINE(HAVE_IOV_ITER_INIT_DIRECTION, 1,
1852 [iov_iter_init handles directional tag])
1854 EXTRA_KCFLAGS="$tmp_flags"
1855 ]) # LC_HAVE_IOV_ITER_INIT_DIRECTION
1858 # LC_HAVE_IOV_ITER_TRUNCATE
1861 # 3.16 introduces a new API iov_iter_truncate()
1863 AC_DEFUN([LC_HAVE_IOV_ITER_TRUNCATE], [
1864 tmp_flags="$EXTRA_KCFLAGS"
1865 EXTRA_KCFLAGS="-Werror"
1866 LB_CHECK_COMPILE([if 'iov_iter_truncate' exists ],
1868 #include <linux/uio.h>
1869 #include <linux/fs.h>
1871 struct iov_iter *i = NULL;
1873 iov_iter_truncate(i, 0);
1875 AC_DEFINE(HAVE_IOV_ITER_TRUNCATE, 1, [iov_iter_truncate exists])
1877 EXTRA_KCFLAGS="$tmp_flags"
1878 ]) # LC_HAVE_IOV_ITER_TRUNCATE
1881 # LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
1883 # 3.16 introduces [read|write]_iter to struct file_operations
1885 AC_DEFUN([LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER], [
1886 LB_CHECK_COMPILE([if 'file_operations.[read|write]_iter' exist],
1887 file_function_iter, [
1888 #include <linux/fs.h>
1890 ((struct file_operations *)NULL)->read_iter(NULL, NULL);
1891 ((struct file_operations *)NULL)->write_iter(NULL, NULL);
1893 AC_DEFINE(HAVE_FILE_OPERATIONS_READ_WRITE_ITER, 1,
1894 [file_operations.[read|write]_iter functions exist])
1896 ]) # LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
1901 # 3.17 replaces key_type::match with match_preparse
1902 # and has new struct key_match_data
1904 AC_DEFUN([LC_KEY_MATCH_DATA], [
1905 LB_CHECK_COMPILE([if struct key_match field exist],
1907 #include <linux/key-type.h>
1909 struct key_match_data data;
1911 AC_DEFINE(HAVE_KEY_MATCH_DATA, 1,
1912 [struct key_match_data exist])
1914 ]) # LC_KEY_MATCH_DATA
1917 # LC_NFS_FILLDIR_USE_CTX
1919 # 3.18 kernel moved from void cookie to struct dir_context
1921 AC_DEFUN([LC_NFS_FILLDIR_USE_CTX], [
1922 tmp_flags="$EXTRA_KCFLAGS"
1923 EXTRA_KCFLAGS="-Werror"
1924 LB_CHECK_COMPILE([if filldir_t uses struct dir_context],
1926 #include <linux/fs.h>
1928 int filldir(struct dir_context *ctx, const char* name,
1929 int i, loff_t off, u64 tmp, unsigned temp)
1934 struct dir_context ctx = {
1938 ctx.actor(NULL, "test", 0, (loff_t) 0, 0, 0);
1940 AC_DEFINE(HAVE_FILLDIR_USE_CTX, 1,
1941 [filldir_t needs struct dir_context as argument])
1943 EXTRA_KCFLAGS="$tmp_flags"
1944 ]) # LC_NFS_FILLDIR_USE_CTX
1947 # LC_PERCPU_COUNTER_INIT
1949 # 3.18 For kernels 3.18 and after percpu_counter_init starts
1950 # to pass a GFP_* memory allocation flag for internal
1951 # memory allocation purposes.
1953 AC_DEFUN([LC_PERCPU_COUNTER_INIT], [
1954 LB_CHECK_COMPILE([if percpu_counter_init uses GFP_* flag as argument],
1955 percpu_counter_init, [
1956 #include <linux/percpu_counter.h>
1958 percpu_counter_init(NULL, 0, GFP_KERNEL);
1960 AC_DEFINE(HAVE_PERCPU_COUNTER_INIT_GFP_FLAG, 1,
1961 [percpu_counter_init uses GFP_* flag])
1963 ]) # LC_PERCPU_COUNTER_INIT
1966 # LC_KIOCB_HAS_NBYTES
1968 # 3.19 kernel removed ki_nbytes from struct kiocb
1970 AC_DEFUN([LC_KIOCB_HAS_NBYTES], [
1971 LB_CHECK_COMPILE([if struct kiocb has ki_nbytes field],
1973 #include <linux/fs.h>
1979 AC_DEFINE(HAVE_KI_NBYTES, 1, [ki_nbytes field exist])
1981 ]) # LC_KIOCB_HAS_NBYTES
1984 # LC_HAVE_DQUOT_QC_DQBLK
1986 # 3.19 has quotactl_ops->[sg]et_dqblk that take struct kqid and qc_dqblk
1987 # Added in commit 14bf61ffe
1989 AC_DEFUN([LC_HAVE_DQUOT_QC_DQBLK], [
1990 tmp_flags="$EXTRA_KCFLAGS"
1991 EXTRA_KCFLAGS="-Werror"
1992 LB_CHECK_COMPILE([if 'quotactl_ops.set_dqblk' takes struct qc_dqblk],
1994 #include <linux/fs.h>
1995 #include <linux/quota.h>
1997 ((struct quotactl_ops *)0)->set_dqblk(NULL, *((struct kqid*)0), (struct qc_dqblk*)0);
1999 AC_DEFINE(HAVE_DQUOT_QC_DQBLK, 1,
2000 [quotactl_ops.set_dqblk takes struct qc_dqblk])
2001 AC_DEFINE(HAVE_DQUOT_KQID, 1,
2002 [quotactl_ops.set_dqblk takes struct kqid])
2004 EXTRA_KCFLAGS="$tmp_flags"
2005 ]) # LC_HAVE_DQUOT_QC_DQBLK
2008 # LC_BACKING_DEV_INFO_REMOVAL
2010 # 3.20 kernel removed backing_dev_info from address_space
2012 AC_DEFUN([LC_BACKING_DEV_INFO_REMOVAL], [
2013 LB_CHECK_COMPILE([if struct address_space has backing_dev_info],
2015 #include <linux/fs.h>
2017 struct address_space mapping;
2019 mapping.backing_dev_info = NULL;
2021 AC_DEFINE(HAVE_BACKING_DEV_INFO, 1, [backing_dev_info exist])
2023 ]) # LC_BACKING_DEV_INFO_REMOVAL
2026 # LC_HAVE_BDI_CAP_MAP_COPY
2028 # 3.20 removed mmap handling for backing devices since
2029 # it breaks on non-MMU systems. See kernel commit
2030 # b4caecd48005fbed3949dde6c1cb233142fd69e9
2032 AC_DEFUN([LC_HAVE_BDI_CAP_MAP_COPY], [
2033 LB_CHECK_COMPILE([if have 'BDI_CAP_MAP_COPY'],
2035 #include <linux/backing-dev.h>
2037 struct backing_dev_info info;
2039 info.capabilities = BDI_CAP_MAP_COPY;
2041 AC_DEFINE(HAVE_BDI_CAP_MAP_COPY, 1,
2042 [BDI_CAP_MAP_COPY exist])
2044 ]) # LC_HAVE_BDI_CAP_MAP_COPY
2047 # LC_CANCEL_DIRTY_PAGE
2049 # 4.0.0 kernel removed cancel_dirty_page
2051 AC_DEFUN([LC_CANCEL_DIRTY_PAGE], [
2052 LB_CHECK_COMPILE([if cancel_dirty_page still exist],
2053 cancel_dirty_page, [
2054 #include <linux/mm.h>
2056 cancel_dirty_page(NULL, PAGE_SIZE);
2058 AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
2059 [cancel_dirty_page is still available])
2061 ]) # LC_CANCEL_DIRTY_PAGE
2066 # 4.1 kernel has iov_iter_rw
2068 AC_DEFUN([LC_IOV_ITER_RW], [
2069 LB_CHECK_COMPILE([if iov_iter_rw exist],
2071 #include <linux/fs.h>
2072 #include <linux/uio.h>
2074 struct iov_iter *iter = NULL;
2078 AC_DEFINE(HAVE_IOV_ITER_RW, 1,
2079 [iov_iter_rw exist])
2084 # LC_HAVE_SYNC_READ_WRITE
2086 # 4.1 new_sync_[read|write] no longer exported
2088 AC_DEFUN([LC_HAVE_SYNC_READ_WRITE], [
2089 LB_CHECK_EXPORT([new_sync_read], [fs/read_write.c],
2090 [AC_DEFINE(HAVE_SYNC_READ_WRITE, 1,
2091 [new_sync_[read|write] is exported by the kernel])])
2092 ]) # LC_HAVE_SYNC_READ_WRITE
2095 # LC_NEW_CANCEL_DIRTY_PAGE
2097 # 4.2 kernel has new cancel_dirty_page
2099 AC_DEFUN([LC_NEW_CANCEL_DIRTY_PAGE], [
2100 LB_CHECK_COMPILE([if cancel_dirty_page with one argument exist],
2101 new_cancel_dirty_page, [
2102 #include <linux/mm.h>
2104 cancel_dirty_page(NULL);
2106 AC_DEFINE(HAVE_NEW_CANCEL_DIRTY_PAGE, 1,
2107 [cancel_dirty_page with one arguement is available])
2109 ]) # LC_NEW_CANCEL_DIRTY_PAGE
2112 # LC_SYMLINK_OPS_USE_NAMEIDATA
2114 # For the 4.2+ kernels the file system internal symlink api no
2115 # longer uses struct nameidata as a argument
2117 AC_DEFUN([LC_SYMLINK_OPS_USE_NAMEIDATA], [
2118 LB_CHECK_COMPILE([if symlink inode operations have struct nameidata argument],
2119 symlink_use_nameidata, [
2120 #include <linux/namei.h>
2121 #include <linux/fs.h>
2123 struct nameidata *nd = NULL;
2125 ((struct inode_operations *)0)->follow_link(NULL, nd);
2126 ((struct inode_operations *)0)->put_link(NULL, nd, NULL);
2128 AC_DEFINE(HAVE_SYMLINK_OPS_USE_NAMEIDATA, 1,
2129 [symlink inode operations need struct nameidata argument])
2131 ]) # LC_SYMLINK_OPS_USE_NAMEIDATA
2134 # LC_BIO_ENDIO_USES_ONE_ARG
2136 # 4.2 kernel bio_endio now only takes one argument
2138 AC_DEFUN([LC_BIO_ENDIO_USES_ONE_ARG], [
2139 LB_CHECK_COMPILE([if 'bio_endio' with one argument exist],
2141 #include <linux/bio.h>
2145 AC_DEFINE(HAVE_BIO_ENDIO_USES_ONE_ARG, 1,
2146 [bio_endio takes only one argument])
2148 ]) # LC_BIO_ENDIO_USES_ONE_ARG
2151 # LC_HAVE_LOOP_CTL_GET_FREE
2153 # 4.x kernel have moved userspace APIs to
2154 # the separate directory and all of them
2155 # support LOOP_CTL_GET_FREE
2157 AC_DEFUN([LC_HAVE_LOOP_CTL_GET_FREE], [
2158 LB_CHECK_FILE([$LINUX/include/linux/loop.h], [
2159 LB_CHECK_COMPILE([if have 'HAVE_LOOP_CTL_GET_FREE'],
2160 LOOP_CTL_GET_FREE, [
2161 #include <linux/loop.h>
2165 i = LOOP_CTL_GET_FREE;
2167 AC_DEFINE(HAVE_LOOP_CTL_GET_FREE, 1,
2168 [LOOP_CTL_GET_FREE exist])
2171 AC_DEFINE(HAVE_LOOP_CTL_GET_FREE, 1,
2172 [kernel has LOOP_CTL_GET_FREE])
2174 ]) # LC_HAVE_LOOP_CTL_GET_FREE
2177 # LC_HAVE_CACHE_HEAD_HLIST
2179 # 4.3 kernel swiched to hlist for cache_head
2181 AC_DEFUN([LC_HAVE_CACHE_HEAD_HLIST], [
2182 LB_CHECK_COMPILE([if 'struct cache_head' has 'cache_list' field],
2183 cache_head_has_hlist, [
2184 #include <linux/sunrpc/cache.h>
2186 do {} while(sizeof(((struct cache_head *)0)->cache_list));
2188 AC_DEFINE(HAVE_CACHE_HEAD_HLIST, 1,
2189 [cache_head has hlist cache_list])
2191 ]) # LC_HAVE_CACHE_HEAD_HLIST
2194 # LC_HAVE_XATTR_HANDLER_SIMPLIFIED
2196 # Kernel version 4.3 commit e409de992e3ea3674393465f07cc71c948edd87a
2197 # simplified xattr_handler handling by passing in the handler pointer
2199 AC_DEFUN([LC_HAVE_XATTR_HANDLER_SIMPLIFIED], [
2200 tmp_flags="$EXTRA_KCFLAGS"
2201 EXTRA_KCFLAGS="-Werror"
2202 LB_CHECK_COMPILE([if 'struct xattr_handler' functions pass in handler pointer],
2203 xattr_handler_simplified, [
2204 #include <linux/xattr.h>
2206 struct xattr_handler handler;
2208 ((struct xattr_handler *)0)->get(&handler, NULL, NULL, NULL, 0);
2209 ((struct xattr_handler *)0)->set(&handler, NULL, NULL, NULL, 0, 0);
2211 AC_DEFINE(HAVE_XATTR_HANDLER_SIMPLIFIED, 1, [handler pointer is parameter])
2213 EXTRA_KCFLAGS="$tmp_flags"
2214 ]) # LC_HAVE_XATTR_HANDLER_SIMPLIFIED
2217 # LC_HAVE_LOCKS_LOCK_FILE_WAIT
2219 # 4.4 kernel have moved locks API users to
2220 # locks_lock_inode_wait()
2222 AC_DEFUN([LC_HAVE_LOCKS_LOCK_FILE_WAIT], [
2223 LB_CHECK_COMPILE([if 'locks_lock_file_wait' exists],
2224 locks_lock_file_wait, [
2225 #include <linux/fs.h>
2227 locks_lock_file_wait(NULL, NULL);
2229 AC_DEFINE(HAVE_LOCKS_LOCK_FILE_WAIT, 1,
2230 [kernel has locks_lock_file_wait])
2232 ]) # LC_HAVE_LOCKS_LOCK_FILE_WAIT
2235 # LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
2237 # 4.4 kernel merged type-specific data with the payload data for keys
2239 AC_DEFUN([LC_HAVE_KEY_PAYLOAD_DATA_ARRAY], [
2240 LB_CHECK_COMPILE([if 'struct key' has 'payload.data' as an array],
2241 key_payload_data_array, [
2242 #include <linux/key.h>
2244 ((struct key *)0)->payload.data[0] = NULL;
2246 AC_DEFINE(HAVE_KEY_PAYLOAD_DATA_ARRAY, 1, [payload.data is an array])
2248 ]) #LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
2251 # LC_HAVE_FILE_DENTRY
2253 # 4.5 adds wrapper file_dentry
2255 AC_DEFUN([LC_HAVE_FILE_DENTRY], [
2256 LB_CHECK_COMPILE([if Linux kernel has 'file_dentry'],
2258 #include <linux/fs.h>
2262 AC_DEFINE(HAVE_FILE_DENTRY, 1,
2263 [kernel has file_dentry])
2265 ]) # LC_HAVE_FILE_DENTRY
2268 # LC_HAVE_INODE_LOCK
2270 # 4.5 introduced inode_lock
2272 AC_DEFUN([LC_HAVE_INODE_LOCK], [
2273 LB_CHECK_COMPILE([if 'inode_lock' is defined],
2275 #include <linux/fs.h>
2279 AC_DEFINE(HAVE_INODE_LOCK, 1,
2280 [inode_lock is defined])
2282 ]) # LC_HAVE_INODE_LOCK
2285 # LC_HAVE_IOP_GET_LINK
2287 # 4.5 vfs replaced iop->follow_link with
2290 AC_DEFUN([LC_HAVE_IOP_GET_LINK], [
2291 LB_CHECK_COMPILE([if 'iop' has 'get_link'],
2292 inode_ops_get_link, [
2293 #include <linux/fs.h>
2295 struct inode_operations iop;
2296 iop.get_link = NULL;
2298 AC_DEFINE(HAVE_IOP_GET_LINK, 1,
2299 [have iop get_link])
2301 ]) # LC_HAVE_IOP_GET_LINK
2304 # LC_HAVE_IN_COMPAT_SYSCALL
2306 # 4.6 renamed is_compat_task to in_compat_syscall
2308 AC_DEFUN([LC_HAVE_IN_COMPAT_SYSCALL], [
2309 LB_CHECK_COMPILE([if 'in_compat_syscall' is defined],
2310 in_compat_syscall, [
2311 #include <linux/compat.h>
2313 in_compat_syscall();
2315 AC_DEFINE(HAVE_IN_COMPAT_SYSCALL, 1,
2316 [have in_compat_syscall])
2318 ]) # LC_HAVE_IN_COMPAT_SYSCALL
2321 # LC_HAVE_XATTR_HANDLER_INODE_PARAM
2323 # Kernel version 4.6 commit b296821a7c42fa58baa17513b2b7b30ae66f3336
2324 # and commit 5930122683dff58f0846b0f0405b4bd598a3ba6a added inode parameter
2325 # to xattr_handler functions
2327 AC_DEFUN([LC_HAVE_XATTR_HANDLER_INODE_PARAM], [
2328 tmp_flags="$EXTRA_KCFLAGS"
2329 EXTRA_KCFLAGS="-Werror"
2330 LB_CHECK_COMPILE([if 'struct xattr_handler' functions have inode parameter],
2331 xattr_handler_inode_param, [
2332 #include <linux/xattr.h>
2334 const struct xattr_handler handler;
2336 ((struct xattr_handler *)0)->get(&handler, NULL, NULL, NULL, NULL, 0);
2337 ((struct xattr_handler *)0)->set(&handler, NULL, NULL, NULL, NULL, 0, 0);
2339 AC_DEFINE(HAVE_XATTR_HANDLER_INODE_PARAM, 1, [needs inode parameter])
2341 EXTRA_KCFLAGS="$tmp_flags"
2342 ]) # LC_HAVE_XATTR_HANDLER_INODE_PARAM
2347 # Kernel version 4.7 commit c8b8e32d700fe943a935e435ae251364d016c497
2348 # direct-io: eliminate the offset argument to ->direct_IO
2350 AC_DEFUN([LC_DIRECTIO_2ARGS], [
2351 LB_CHECK_COMPILE([if '->direct_IO()' taken 2 arguments],
2353 #include <linux/fs.h>
2355 struct address_space_operations ops;
2356 struct iov_iter *iter = NULL;
2357 struct kiocb *iocb = NULL;
2359 rc = ops.direct_IO(iocb, iter);
2361 AC_DEFINE(HAVE_DIRECTIO_2ARGS, 1,
2362 [direct_IO need 2 arguments])
2364 ]) # LC_DIRECTIO_2ARGS
2367 # LC_GENERIC_WRITE_SYNC_2ARGS
2369 # Kernel version 4.7 commit c8b8e32d700fe943a935e435ae251364d016c497
2370 # direct-io: eliminate the offset argument to ->direct_IO
2372 AC_DEFUN([LC_GENERIC_WRITE_SYNC_2ARGS], [
2373 LB_CHECK_COMPILE([if 'generic_write_sync()' taken 2 arguments],
2374 generic_write_sync_2args, [
2375 #include <linux/fs.h>
2377 struct kiocb *iocb = NULL;
2379 rc = generic_write_sync(iocb, 0);
2381 AC_DEFINE(HAVE_GENERIC_WRITE_SYNC_2ARGS, 1,
2382 [generic_write_sync need 2 arguments])
2384 ]) # LC_GENERIC_WRITE_SYNC_2ARGS
2387 # LC_HAVE_POSIX_ACL_VALID_USER_NS
2389 # 4.8 posix_acl_valid takes struct user_namespace
2391 AC_DEFUN([LC_HAVE_POSIX_ACL_VALID_USER_NS], [
2392 LB_CHECK_COMPILE([if 'posix_acl_valid' takes 'struct user_namespace'],
2394 #include <linux/fs.h>
2395 #include <linux/posix_acl.h>
2397 posix_acl_valid((struct user_namespace*)NULL, (const struct posix_acl*)NULL);
2399 AC_DEFINE(HAVE_POSIX_ACL_VALID_USER_NS, 1,
2400 [posix_acl_valid takes struct user_namespace])
2402 ]) # LC_HAVE_POSIX_ACL_VALID_USER_NS
2405 # LC_D_COMPARE_4ARGS
2407 # Kernel version 4.8 commit 6fa67e707559303e086303aeecc9e8b91ef497d5
2408 # get rid of 'parent' argument of ->d_compare()
2410 AC_DEFUN([LC_D_COMPARE_4ARGS], [
2411 LB_CHECK_COMPILE([if 'd_compare' taken 4 arguments],
2413 #include <linux/dcache.h>
2415 ((struct dentry_operations*)0)->d_compare(NULL,0,NULL,NULL);
2417 AC_DEFINE(HAVE_D_COMPARE_4ARGS, 1,
2418 [d_compare need 4 arguments])
2420 ]) # LC_D_COMPARE_4ARGS
2423 # LC_FULL_NAME_HASH_3ARGS
2425 # Kernel version 4.8 commit 8387ff2577eb9ed245df9a39947f66976c6bcd02
2426 # vfs: make the string hashes salt the hash
2428 AC_DEFUN([LC_FULL_NAME_HASH_3ARGS], [
2429 LB_CHECK_COMPILE([if 'full_name_hash' taken 3 arguments],
2430 full_name_hash_3args, [
2431 #include <linux/stringhash.h>
2434 hash = full_name_hash(NULL,NULL,0);
2436 AC_DEFINE(HAVE_FULL_NAME_HASH_3ARGS, 1,
2437 [full_name_hash need 3 arguments])
2439 ]) # LC_FULL_NAME_HASH_3ARGS
2442 # LC_STRUCT_POSIX_ACL_XATTR
2444 # Kernel version 4.8 commit 2211d5ba5c6c4e972ba6dbc912b2897425ea6621
2445 # posix_acl: xattr representation cleanups
2447 AC_DEFUN([LC_STRUCT_POSIX_ACL_XATTR], [
2448 LB_CHECK_COMPILE([if 'struct posix_acl_xattr_{header,entry}' defined],
2449 struct_posix_acl_xattr, [
2450 #include <linux/fs.h>
2451 #include <linux/posix_acl_xattr.h>
2453 struct posix_acl_xattr_header *h = NULL;
2454 struct posix_acl_xattr_entry *e;
2455 e = (void *)(h + 1);
2457 AC_DEFINE(HAVE_STRUCT_POSIX_ACL_XATTR, 1,
2458 [struct posix_acl_xattr_{header,entry} defined])
2460 ]) # LC_STRUCT_POSIX_ACL_XATTR
2465 # Kernel version 4.8 commit fd50ecaddf8372a1d96e0daeaac0f93cf04e4d42
2466 # removed {get,set,remove}xattr inode operations
2468 AC_DEFUN([LC_IOP_XATTR], [
2469 LB_CHECK_COMPILE([if 'inode_operations' has {get,set,remove}xattr members],
2471 #include <linux/fs.h>
2473 struct inode_operations iop;
2474 iop.setxattr = NULL;
2475 iop.getxattr = NULL;
2476 iop.removexattr = NULL;
2478 AC_DEFINE(HAVE_IOP_XATTR, 1,
2479 [inode_operations has {get,set,remove}xattr members])
2486 # Kernel version 4.9 commit 81243eacfa400f5f7b89f4c2323d0de9982bb0fb
2487 # cred: simpler, 1D supplementary groups
2489 AC_DEFUN([LC_GROUP_INFO_GID], [
2490 LB_CHECK_COMPILE([if 'struct group_info' has member 'gid'],
2492 #include <linux/cred.h>
2495 p = ((struct group_info *)0)->gid;
2497 AC_DEFINE(HAVE_GROUP_INFO_GID, 1,
2498 [struct group_info has member gid])
2500 ]) # LC_GROUP_INFO_GID
2505 # Kernel version 4.9 commit 5d6c31910bc0713e37628dc0ce677dcb13c8ccf4
2506 # added __vfs_{get,set,remove}xattr helpers
2508 AC_DEFUN([LC_VFS_SETXATTR], [
2509 LB_CHECK_COMPILE([if '__vfs_setxattr' helper is available],
2511 #include <linux/xattr.h>
2513 __vfs_setxattr(NULL, NULL, NULL, NULL, 0, 0);
2515 AC_DEFINE(HAVE_VFS_SETXATTR, 1,
2516 ['__vfs_setxattr is available])
2518 ]) # LC_VFS_SETXATTR
2521 # LC_IOP_GENERIC_READLINK
2523 # Kernel version 4.10 commit dfeef68862edd7d4bafe68ef7aeb5f658ef24bb5
2524 # removed generic_readlink from individual file systems
2526 AC_DEFUN([LC_IOP_GENERIC_READLINK], [
2527 LB_CHECK_COMPILE([if 'generic_readlink' still exist],
2528 inode_ops_readlink, [
2529 #include <linux/fs.h>
2531 struct inode_operations iop;
2532 iop.readlink = generic_readlink;
2534 AC_DEFINE(HAVE_IOP_GENERIC_READLINK, 1,
2535 [generic_readlink has been removed])
2537 ]) # LC_IOP_GENERIC_READLINK
2540 # LC_HAVE_VM_FAULT_ADDRESS
2542 # Kernel version 4.10 commit 1a29d85eb0f19b7d8271923d8917d7b4f5540b3e
2543 # removed virtual_address field. Need to use address field instead
2545 AC_DEFUN([LC_HAVE_VM_FAULT_ADDRESS], [
2546 LB_CHECK_COMPILE([if 'struct vm_fault' replaced virtual_address with address field],
2548 #include <linux/mm.h>
2550 struct vm_fault vmf;
2553 AC_DEFINE(HAVE_VM_FAULT_ADDRESS, 1,
2554 [virtual_address has been replaced by address field])
2556 ]) # LC_HAVE_VM_FAULT_ADDRESS
2559 # LC_INODEOPS_ENHANCED_GETATTR
2561 # Kernel version 4.11 commit a528d35e8bfcc521d7cb70aaf03e1bd296c8493f
2562 # expanded getattr to be able to get more stat information.
2564 AC_DEFUN([LC_INODEOPS_ENHANCED_GETATTR], [
2565 LB_CHECK_COMPILE([if 'inode_operations' getattr member can gather advance stats],
2567 #include <linux/fs.h>
2571 ((struct inode_operations *)1)->getattr(&path, NULL, 0, 0);
2573 AC_DEFINE(HAVE_INODEOPS_ENHANCED_GETATTR, 1,
2574 [inode_operations .getattr member function can gather advance stats])
2576 ]) # LC_INODEOPS_ENHANCED_GETATTR
2579 # LC_VM_OPERATIONS_REMOVE_VMF_ARG
2581 # Kernel version 4.11 commit 11bac80004499ea59f361ef2a5516c84b6eab675
2582 # removed struct vm_area_struct as an argument for vm_operations since
2583 # in the same kernel version struct vma_area_struct was folded into
2586 AC_DEFUN([LC_VM_OPERATIONS_REMOVE_VMF_ARG], [
2587 LB_CHECK_COMPILE([if 'struct vm_operations' removed struct vm_area_struct],
2588 vm_operations_no_vm_area_struct, [
2589 #include <linux/mm.h>
2591 struct vm_fault vmf;
2593 ((struct vm_operations_struct *)0)->fault(&vmf);
2594 ((struct vm_operations_struct *)0)->page_mkwrite(&vmf);
2596 AC_DEFINE(HAVE_VM_OPS_USE_VM_FAULT_ONLY, 1,
2597 ['struct vm_operations' remove struct vm_area_struct argument])
2599 ]) # LC_VM_OPERATIONS_REMOVE_VMF_ARG
2602 # Kernel version 4.12 commit 47f38c539e9a42344ff5a664942075bd4df93876
2603 # CURRENT_TIME is not 64 bit time safe so it was replaced with
2606 AC_DEFUN([LC_CURRENT_TIME], [
2607 LB_CHECK_COMPILE([if CURRENT_TIME has been replaced with current_time],
2609 #include <linux/fs.h>
2611 struct timespec ts = current_time(NULL);
2613 AC_DEFINE(HAVE_CURRENT_TIME, 1,
2614 [current_time() has replaced CURRENT_TIME])
2616 ]) # LIBCFS_CURRENT_TIME
2621 # Lustre linux kernel checks
2623 AC_DEFUN([LC_PROG_LINUX], [
2624 AC_MSG_NOTICE([Lustre kernel checks
2625 ==============================================================================])
2629 LC_CONFIG_HEALTH_CHECK_WRITE
2630 LC_CONFIG_LRU_RESIZE
2632 LC_GLIBC_SUPPORT_FHANDLES
2637 LC_BLK_QUEUE_MAX_SEGMENTS
2640 LC_HAVE_XATTR_HANDLER_FLAGS
2643 LC_HAVE_DQUOT_FS_DISK_QUOTA
2644 LC_HAVE_DQUOT_SUSPEND
2645 LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE
2649 LC_EXPORT_SIMPLE_SETATTR
2650 LC_EXPORT_TRUNCATE_COMPLETE_PAGE
2654 LC_SBOPS_EVICT_INODE
2660 LC_BLKDEV_GET_BY_DEV
2661 LC_GENERIC_PERMISSION
2669 LC_HAVE_FHANDLE_SYSCALLS
2670 LC_HAVE_FSTYPE_MOUNT
2672 LC_HAVE_INODE_OWNER_OR_CAPABLE
2673 LC_HAVE_SECURITY_IINITSEC
2676 LC_DIRTY_INODE_WITH_FLAG
2680 LC_LM_XXX_LOCK_MANAGER_OPS
2684 LC_INODE_PERMISION_2ARGS
2685 LC_RADIX_EXCEPTION_ENTRY
2686 LC_HAVE_LOOP_CTL_GET_FREE
2689 LC_HAVE_PROTECT_I_NLINK
2692 LC_HAVE_MIGRATE_HEADER
2693 LC_MIGRATEPAGE_4ARGS
2694 LC_SUPEROPS_USE_DENTRY
2695 LC_INODEOPS_USE_UMODE_T
2696 LC_HAVE_CACHE_REGISTER
2700 LC_KMAP_ATOMIC_HAS_1ARG
2704 LC_HAVE_ENCODE_FH_PARENT
2705 LC_FILE_LLSEEK_SIZE_5ARG
2708 LC_DATA_FOR_LLITE_IS_LIST
2709 LC_DENTRY_OPEN_USE_PATH
2710 LC_HAVE_IOP_ATOMIC_OPEN
2711 LC_HAVE_SB_START_WRITE
2714 LC_HAVE_POSIXACL_USER_NS
2717 LC_HAVE_FILE_F_INODE
2719 LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
2722 LC_HAVE_HLIST_FOR_EACH_3ARG
2723 LC_HAVE_BIO_END_SECTOR
2727 LC_HAVE_REMOVE_PROC_SUBTREE
2729 LC_HAVE_PROJECT_QUOTA
2730 LC_HAVE_SECURITY_DENTRY_INIT_SECURITY
2737 LC_HAVE_DENTRY_D_U_D_ALIAS
2738 LC_HAVE_DENTRY_D_CHILD
2739 LC_PID_NS_FOR_CHILDREN
2742 LC_OLDSIZE_TRUNCATE_PAGECACHE
2751 LC_HAVE_TRUNCATE_IPAGES_FINAL
2752 LC_IOPS_RENAME_WITH_FLAGS
2759 LC_DIRECTIO_USE_ITER
2760 LC_HAVE_IOV_ITER_INIT_DIRECTION
2761 LC_HAVE_IOV_ITER_TRUNCATE
2762 LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
2768 LC_PERCPU_COUNTER_INIT
2769 LC_NFS_FILLDIR_USE_CTX
2773 LC_HAVE_DQUOT_QC_DQBLK
2776 LC_BACKING_DEV_INFO_REMOVAL
2777 LC_HAVE_BDI_CAP_MAP_COPY
2780 LC_CANCEL_DIRTY_PAGE
2784 LC_HAVE_SYNC_READ_WRITE
2787 LC_NEW_CANCEL_DIRTY_PAGE
2788 LC_BIO_ENDIO_USES_ONE_ARG
2789 LC_SYMLINK_OPS_USE_NAMEIDATA
2792 LC_HAVE_CACHE_HEAD_HLIST
2793 LC_HAVE_XATTR_HANDLER_SIMPLIFIED
2796 LC_HAVE_LOCKS_LOCK_FILE_WAIT
2797 LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
2805 LC_HAVE_IOP_GET_LINK
2808 LC_HAVE_IN_COMPAT_SYSCALL
2809 LC_HAVE_XATTR_HANDLER_INODE_PARAM
2813 LC_GENERIC_WRITE_SYNC_2ARGS
2816 LC_HAVE_POSIX_ACL_VALID_USER_NS
2818 LC_FULL_NAME_HASH_3ARGS
2819 LC_STRUCT_POSIX_ACL_XATTR
2827 LC_IOP_GENERIC_READLINK
2828 LC_HAVE_VM_FAULT_ADDRESS
2831 LC_INODEOPS_ENHANCED_GETATTR
2832 LC_VM_OPERATIONS_REMOVE_VMF_ARG
2838 AS_IF([test "x$enable_server" != xno], [
2848 # Check whether to build the client side of Lustre
2850 AC_DEFUN([LC_CONFIG_CLIENT], [
2851 AC_MSG_CHECKING([whether to build Lustre client support])
2852 AC_ARG_ENABLE([client],
2853 AC_HELP_STRING([--disable-client],
2854 [disable Lustre client support]),
2855 [], [enable_client="yes"])
2856 AC_MSG_RESULT([$enable_client])
2857 ]) # LC_CONFIG_CLIENT
2862 AC_DEFUN([LB_CONFIG_MPITESTS], [
2863 AC_ARG_ENABLE([mpitests],
2864 AC_HELP_STRING([--enable-mpitests=<yes|no|mpicc wrapper>],
2865 [include mpi tests]), [
2866 enable_mpitests="yes"
2869 MPICC_WRAPPER="mpicc"
2872 enable_mpitests="no"
2875 MPICC_WRAPPER=$enableval
2879 enable_mpitests="yes"
2880 MPICC_WRAPPER="mpicc"
2883 if test "x$enable_mpitests" != "xno"; then
2886 AC_CACHE_CHECK([whether mpitests can be built],
2887 lb_cv_mpi_tests, [AC_COMPILE_IFELSE([AC_LANG_SOURCE([
2891 MPI_Initialized(&flag);
2894 ])], [lb_cv_mpi_tests="yes"], [lb_cv_mpi_tests="no"])
2896 enable_mpitests=$lb_cv_mpi_tests
2899 AC_SUBST(MPICC_WRAPPER)
2900 ]) # LB_CONFIG_MPITESTS
2905 # whether to enable quota support global control
2907 AC_DEFUN([LC_CONFIG_QUOTA], [
2908 AC_MSG_CHECKING([whether to enable quota support global control])
2909 AC_ARG_ENABLE([quota],
2910 AC_HELP_STRING([--enable-quota],
2911 [enable quota support]),
2912 [], [enable_quota="yes"])
2913 AS_IF([test "x$enable_quota" = xyes],
2914 [AC_MSG_RESULT([yes])],
2915 [AC_MSG_RESULT([no])])
2916 ]) # LC_CONFIG_QUOTA
2921 AC_DEFUN([LC_QUOTA], [
2925 AS_IF([test "x$enable_quota" != xno -a "x$enable_utils" != xno], [
2926 AC_CHECK_HEADER([sys/quota.h],
2927 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1,
2928 [Define to 1 if you have <sys/quota.h>.])],
2929 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
2934 # LC_CONFIG_NODEMAP_PROC_DEBUG
2936 # enable nodemap proc file debugging
2938 AC_DEFUN([LC_NODEMAP_PROC_DEBUG], [
2939 AC_MSG_CHECKING([whether to enable nodemap proc debug])
2940 AC_ARG_ENABLE([nodemap_proc_debug],
2941 AC_HELP_STRING([--enable-nodemap-proc-debug],
2942 [enable nodemap proc debug]),
2943 [], [enable_nodemap_proc_debug="no"])
2944 AC_MSG_RESULT([$enable_nodemap_proc_debug])
2945 AS_IF([test "x$enable_nodemap_proc_debug" != xno],
2946 [AC_DEFINE(NODEMAP_PROC_DEBUG, 1,
2947 [enable nodemap proc debug support])])
2948 ]) # LC_NODEMAP_PROC_DEBUG
2953 # configure support for optional OSD implementation
2955 AC_DEFUN([LC_OSD_ADDON], [
2956 AC_MSG_CHECKING([whether to use OSD addon])
2958 AC_HELP_STRING([--with-osd=path],
2959 [set path to optional osd]),
2966 OSDADDON="$with_osd"
2973 AS_IF([test $ENABLEOSDADDON -eq 0], [
2977 OSDMODNAME=$(basename $OSDADDON)
2978 AS_IF([test -e $LUSTRE/$OSDMODNAME], [
2979 AC_MSG_RESULT([can't link])
2981 ], [ln -s $OSDADDON $LUSTRE/$OSDMODNAME], [
2982 AC_MSG_RESULT([$OSDMODNAME])
2983 OSDADDON="subdir-m += $OSDMODNAME"
2985 AC_MSG_RESULT([can't link])
2995 # other configure checks
2997 AC_DEFUN([LC_CONFIGURE], [
2998 AC_MSG_NOTICE([Lustre core checks
2999 ==============================================================================])
3001 LC_CONFIG_OBD_BUFFER_SIZE
3003 AS_IF([test $target_cpu == "i686" -o $target_cpu == "x86_64"],
3004 [CFLAGS="$CFLAGS -Wall -Werror"])
3006 # maximum MDS thread count
3009 # lustre/utils/gss/gss_util.c
3010 # lustre/utils/gss/gssd_proc.c
3011 # lustre/utils/gss/krb5_util.c
3012 # lustre/utils/llog_reader.c
3013 # lustre/utils/create_iam.c
3014 # lustre/utils/libiam.c
3015 AC_CHECK_HEADERS([netdb.h endian.h])
3016 AC_CHECK_FUNCS([gethostbyname])
3018 # lustre/utils/llverdev.c
3019 AC_CHECK_HEADERS([blkid/blkid.h])
3021 # lustre/utils/llverfs.c
3022 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
3025 AC_CHECK_LIB([selinux], [is_selinux_enabled],
3026 [AC_CHECK_HEADERS([selinux/selinux.h],
3027 [SELINUX="-lselinux"
3028 AC_DEFINE([HAVE_SELINUX], 1,
3029 [support for selinux ])],
3032 No libselinux-devel package found, unable to build selinux enabled tools
3037 No selinux package found, unable to build selinux enabled tools
3043 AC_MSG_CHECKING([whether to report minimum OST free space])
3044 AC_ARG_ENABLE([mindf],
3045 AC_HELP_STRING([--enable-mindf],
3046 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
3047 [], [enable_mindf="no"])
3048 AC_MSG_RESULT([$enable_mindf])
3049 AS_IF([test "$enable_mindf" = "yes"],
3050 [AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])])
3052 AC_MSG_CHECKING([whether to randomly failing memory alloc])
3053 AC_ARG_ENABLE([fail_alloc],
3054 AC_HELP_STRING([--disable-fail-alloc],
3055 [disable randomly alloc failure]),
3056 [], [enable_fail_alloc="yes"])
3057 AC_MSG_RESULT([$enable_fail_alloc])
3058 AS_IF([test "x$enable_fail_alloc" != xno],
3059 [AC_DEFINE([RANDOM_FAIL_ALLOC], 1,
3060 [enable randomly alloc failure])])
3062 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
3063 AC_ARG_ENABLE([invariants],
3064 AC_HELP_STRING([--enable-invariants],
3065 [enable invariant checking (cpu intensive)]),
3066 [], [enable_invariants="no"])
3067 AC_MSG_RESULT([$enable_invariants])
3068 AS_IF([test "x$enable_invariants" = xyes],
3069 [AC_DEFINE([CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK], 1,
3070 [enable invariant checking])])
3072 AC_MSG_CHECKING([whether to track references with lu_ref])
3073 AC_ARG_ENABLE([lu_ref],
3074 AC_HELP_STRING([--enable-lu_ref],
3075 [enable lu_ref reference tracking code]),
3076 [], [enable_lu_ref="no"])
3077 AC_MSG_RESULT([$enable_lu_ref])
3078 AS_IF([test "x$enable_lu_ref" = xyes],
3079 [AC_DEFINE([USE_LU_REF], 1,
3080 [enable lu_ref reference tracking code])])
3082 AC_MSG_CHECKING([whether to enable page state tracking])
3083 AC_ARG_ENABLE([pgstate-track],
3084 AC_HELP_STRING([--enable-pgstate-track],
3085 [enable page state tracking]),
3086 [], [enable_pgstat_track="no"])
3087 AC_MSG_RESULT([$enable_pgstat_track])
3088 AS_IF([test "x$enable_pgstat_track" = xyes],
3089 [AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
3090 [enable page state tracking code])])
3093 AC_MSG_CHECKING([systemd unit file directory])
3094 AC_ARG_WITH([systemdsystemunitdir],
3095 [AS_HELP_STRING([--with-systemdsystemunitdir=DIR],
3096 [Directory for systemd service files])],
3097 [], [with_systemdsystemunitdir=auto])
3098 AS_IF([test "x$with_systemdsystemunitdir" = "xyes" -o "x$with_systemdsystemunitdir" = "xauto"],
3099 [def_systemdsystemunitdir=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)
3100 AS_IF([test "x$def_systemdsystemunitdir" = "x"],
3101 [AS_IF([test "x$with_systemdsystemunitdir" = "xyes"],
3102 [AC_MSG_ERROR([systemd support requested but pkg-config unable to query systemd package])])
3103 with_systemdsystemunitdir=no],
3104 [with_systemdsystemunitdir="$def_systemdsystemunitdir"])])
3105 AS_IF([test "x$with_systemdsystemunitdir" != "xno"],
3106 [AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])])
3107 AC_MSG_RESULT([$with_systemdsystemunitdir])
3113 # AM_CONDITIONALS for lustre
3115 AC_DEFUN([LC_CONDITIONALS], [
3116 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
3117 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
3118 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
3119 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
3120 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
3121 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
3122 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
3123 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
3124 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
3125 AM_CONDITIONAL(GSS_SSK, test x$enable_ssk = xyes)
3126 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
3127 AM_CONDITIONAL(HAVE_SYSTEMD, test "x$with_systemdsystemunitdir" != "xno")
3128 AM_CONDITIONAL(XATTR_HANDLER, test "x$lb_cv_compile_xattr_handler_flags" = xyes)
3129 ]) # LC_CONDITIONALS
3134 # files that should be generated with AC_OUTPUT
3136 AC_DEFUN([LC_CONFIG_FILES],
3140 lustre/autoconf/Makefile
3141 lustre/conf/Makefile
3142 lustre/contrib/Makefile
3144 lustre/include/Makefile
3145 lustre/include/lustre/Makefile
3146 lustre/include/uapi/linux/Makefile
3147 lustre/kernel_patches/targets/3.10-rhel7.target
3148 lustre/kernel_patches/targets/2.6-rhel6.9.target
3149 lustre/kernel_patches/targets/2.6-rhel6.8.target
3150 lustre/kernel_patches/targets/2.6-rhel6.7.target
3151 lustre/kernel_patches/targets/2.6-rhel6.6.target
3152 lustre/kernel_patches/targets/2.6-rhel6.target
3153 lustre/kernel_patches/targets/2.6-rhel5.target
3154 lustre/kernel_patches/targets/2.6-sles11.target
3155 lustre/kernel_patches/targets/3.0-sles11.target
3156 lustre/kernel_patches/targets/3.0-sles11sp3.target
3157 lustre/kernel_patches/targets/3.0-sles11sp4.target
3158 lustre/kernel_patches/targets/3.12-sles12.target
3159 lustre/kernel_patches/targets/4.4-sles12.target
3160 lustre/kernel_patches/targets/2.6-fc11.target
3161 lustre/kernel_patches/targets/2.6-fc12.target
3162 lustre/kernel_patches/targets/2.6-fc15.target
3163 lustre/kernel_patches/targets/3.x-fc18.target
3164 lustre/ldlm/Makefile
3166 lustre/fid/autoMakefile
3167 lustre/llite/Makefile
3168 lustre/llite/autoMakefile
3170 lustre/lov/autoMakefile
3172 lustre/mdc/autoMakefile
3174 lustre/lmv/autoMakefile
3175 lustre/lfsck/Makefile
3176 lustre/lfsck/autoMakefile
3178 lustre/mdt/autoMakefile
3180 lustre/mdd/autoMakefile
3182 lustre/fld/autoMakefile
3183 lustre/obdclass/Makefile
3184 lustre/obdclass/autoMakefile
3185 lustre/obdclass/linux/Makefile
3186 lustre/obdecho/Makefile
3187 lustre/obdecho/autoMakefile
3189 lustre/ofd/autoMakefile
3191 lustre/osc/autoMakefile
3193 lustre/ost/autoMakefile
3194 lustre/osd-ldiskfs/Makefile
3195 lustre/osd-ldiskfs/autoMakefile
3196 lustre/osd-zfs/Makefile
3197 lustre/osd-zfs/autoMakefile
3199 lustre/mgc/autoMakefile
3201 lustre/mgs/autoMakefile
3202 lustre/target/Makefile
3203 lustre/ptlrpc/Makefile
3204 lustre/ptlrpc/autoMakefile
3205 lustre/ptlrpc/gss/Makefile
3206 lustre/ptlrpc/gss/autoMakefile
3207 lustre/quota/Makefile
3208 lustre/quota/autoMakefile
3209 lustre/scripts/Makefile
3210 lustre/scripts/systemd/Makefile
3211 lustre/tests/Makefile
3212 lustre/tests/mpi/Makefile
3213 lustre/tests/kernel/Makefile
3214 lustre/tests/kernel/autoMakefile
3215 lustre/utils/Makefile
3216 lustre/utils/gss/Makefile
3218 lustre/osp/autoMakefile
3220 lustre/lod/autoMakefile
3222 ]) # LC_CONFIG_FILES