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_REQUEST_QUEUE_UNPLUG_FN
752 # 2.6.39 remove unplug_fn from request_queue.
754 AC_DEFUN([LC_REQUEST_QUEUE_UNPLUG_FN], [
755 LB_CHECK_COMPILE([if 'request_queue' has 'unplug_fn' field],
756 request_queue_unplug_fn, [
757 #include <linux/blkdev.h>
759 do {} while(sizeof(((struct request_queue *)0)->unplug_fn));
761 AC_DEFINE(HAVE_REQUEST_QUEUE_UNPLUG_FN, 1,
762 [request_queue has unplug_fn field])
764 ]) # LC_REQUEST_QUEUE_UNPLUG_FN
767 # LC_HAVE_FSTYPE_MOUNT
769 # 2.6.39 replace get_sb with mount in struct file_system_type
771 AC_DEFUN([LC_HAVE_FSTYPE_MOUNT], [
772 LB_CHECK_COMPILE([if 'file_system_type' has 'mount' field],
773 file_system_type_mount, [
774 #include <linux/fs.h>
776 struct file_system_type fst;
777 void *i = (void *) fst.mount;
779 AC_DEFINE(HAVE_FSTYPE_MOUNT, 1,
780 [struct file_system_type has mount field])
782 ]) # LC_HAVE_FSTYPE_MOUNT
785 # LC_HAVE_FHANDLE_SYSCALLS
787 # 2.6.39 The open_by_handle_at() and name_to_handle_at() system calls were
788 # added to Linux kernel 2.6.39.
789 # Check if client supports these functions
791 AC_DEFUN([LC_HAVE_FHANDLE_SYSCALLS], [
792 LB_CHECK_CONFIG_IM([FHANDLE],[
793 AC_DEFINE(HAVE_FHANDLE_SYSCALLS, 1,
794 [kernel supports fhandles and related syscalls])
796 ]) # LC_HAVE_FHANDLE_SYSCALLS
799 # LC_HAVE_INODE_OWNER_OR_CAPABLE
801 # 2.6.39 renames is_owner_or_cap to inode_owner_or_capable
803 AC_DEFUN([LC_HAVE_INODE_OWNER_OR_CAPABLE], [
804 LB_CHECK_COMPILE([if 'inode_owner_or_capable' exist],
805 inode_owner_or_capable, [
806 #include <linux/fs.h>
808 inode_owner_or_capable(NULL);
810 AC_DEFINE(HAVE_INODE_OWNER_OR_CAPABLE, 1,
811 [inode_owner_or_capable exist])
813 ]) # LC_HAVE_INODE_OWNER_OR_CAPABLE
816 # LC_DIRTY_INODE_WITH_FLAG
818 # 3.0 dirty_inode() has a flag parameter
819 # see kernel commit aa38572954ade525817fe88c54faebf85e5a61c0
821 AC_DEFUN([LC_DIRTY_INODE_WITH_FLAG], [
822 LB_CHECK_COMPILE([if 'dirty_inode' super_operation takes flag],
823 dirty_inode_super_operation_flag, [
824 #include <linux/fs.h>
827 inode->i_sb->s_op->dirty_inode(NULL, 0);
829 AC_DEFINE(HAVE_DIRTY_INODE_HAS_FLAG, 1,
830 [dirty_inode super_operation takes flag])
832 ]) # LC_DIRTY_INODE_WITH_FLAG
837 # 3.0 introduced setns
839 AC_DEFUN([LC_SETNS], [
840 AC_CHECK_HEADERS([sched.h], [], [],
843 AC_CHECK_FUNCS([setns])
847 # LC_GENERIC_PERMISSION
849 # 2.6.38 generic_permission taken 4 parameters.
850 # in fact, it means rcu-walk aware permission bring.
852 # 3.1 generic_permission taken 2 parameters.
853 # see kernel commit 2830ba7f34ebb27c4e5b8b6ef408cd6d74860890
855 AC_DEFUN([LC_GENERIC_PERMISSION], [
856 LB_CHECK_COMPILE([if 'generic_permission' take 2 arguments],
857 generic_permission_2args, [
858 #include <linux/fs.h>
860 generic_permission(NULL, 0);
862 AC_DEFINE(HAVE_GENERIC_PERMISSION_2ARGS, 1,
863 [generic_permission taken 2 arguments])
865 LB_CHECK_COMPILE([if 'generic_permission' take 4 arguments],
866 generic_permission_4args, [
867 #include <linux/fs.h>
869 generic_permission(NULL, 0, 0, NULL);
871 AC_DEFINE(HAVE_GENERIC_PERMISSION_4ARGS, 1,
872 [generic_permission taken 4 arguments])
875 ]) # LC_GENERIC_PERMISSION
878 # LC_LM_XXX_LOCK_MANAGER_OPS
880 # 3.1 renames lock-manager ops(lock_manager_operations) from fl_xxx to lm_xxx
881 # see kernel commit 8fb47a4fbf858a164e973b8ea8ef5e83e61f2e50
883 AC_DEFUN([LC_LM_XXX_LOCK_MANAGER_OPS], [
884 LB_CHECK_COMPILE([if 'lock-manager' ops renamed to 'lm_xxx'],
885 lock_manager_ops_lm_xxx, [
886 #include <linux/fs.h>
888 struct lock_manager_operations lm_ops;
889 lm_ops.lm_compare_owner = NULL;
891 AC_DEFINE(HAVE_LM_XXX_LOCK_MANAGER_OPS, 1,
892 [lock-manager ops renamed to lm_xxx])
894 ]) # LC_LM_XXX_LOCK_MANAGER_OPS
899 # 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait
901 # see kernel commit bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3
903 AC_DEFUN([LC_INODE_DIO_WAIT], [
904 LB_CHECK_COMPILE([if 'inode->i_alloc_sem' is killed and use inode_dio_wait],
906 #include <linux/fs.h>
908 inode_dio_wait((struct inode *)0);
910 AC_DEFINE(HAVE_INODE_DIO_WAIT, 1,
911 [inode->i_alloc_sem is killed and use inode_dio_wait])
913 ]) # LC_INODE_DIO_WAIT
918 # 3.1 adds get_acl method to inode_operations to read ACL from disk.
919 # see kernel commit 4e34e719e457f2e031297175410fc0bd4016a085
921 AC_DEFUN([LC_IOP_GET_ACL], [
922 LB_CHECK_COMPILE([if 'inode_operations' has '.get_acl' member function],
924 #include <linux/fs.h>
926 struct inode_operations iop;
929 AC_DEFINE(HAVE_IOP_GET_ACL, 1,
930 [inode_operations has .get_acl member function])
935 # LC_FILE_LLSEEK_SIZE
937 # 3.1 introduced generic_file_llseek_size()
939 AC_DEFUN([LC_FILE_LLSEEK_SIZE], [
940 LB_CHECK_EXPORT([generic_file_llseek_size], [fs/read_write.c],
941 [AC_DEFINE(HAVE_FILE_LLSEEK_SIZE, 1,
942 [generic_file_llseek_size is exported by the kernel])])
943 ]) # LC_FILE_LLSEEK_SIZE
946 # LC_RADIX_EXCEPTION_ENTRY
947 # 3.1 adds radix_tree_exception_entry.
949 AC_DEFUN([LC_RADIX_EXCEPTION_ENTRY], [
950 LB_CHECK_COMPILE([radix_tree_exceptional_entry exist],
951 radix_tree_exceptional_entry, [
952 #include <linux/radix-tree.h>
954 radix_tree_exceptional_entry(NULL);
956 AC_DEFINE(HAVE_RADIX_EXCEPTION_ENTRY, 1,
957 [radix_tree_exceptional_entry exist])
959 ]) # LC_RADIX_EXCEPTION_ENTRY
962 # LC_HAVE_VOID_MAKE_REQUEST_FN
964 # 3.2 request_queue.make_request_fn defined as function returns with void
965 # see kernel commit 5a7bbad27a410350e64a2d7f5ec18fc73836c14f
967 AC_DEFUN([LC_HAVE_VOID_MAKE_REQUEST_FN], [
968 LB_CHECK_COMPILE([if 'request_queue.make_request_fn' returns void but not int],
969 make_request_fn_void, [
970 #include <linux/blkdev.h>
973 make_request_fn *mrf;
974 ret = mrf(NULL, NULL);
976 AC_DEFINE(HAVE_VOID_MAKE_REQUEST_FN, 1,
977 [request_queue.make_request_fn returns void but not int])
979 ]) # LC_HAVE_VOID_MAKE_REQUEST_FN
982 # LC_HAVE_PROTECT_I_NLINK
984 # 3.2 protects inode->i_nlink from direct modification
985 # see kernel commit a78ef704a8dd430225955f0709b22d4a6ba21deb
986 # at the same time adds set_nlink(), so checks set_nlink() for it.
988 AC_DEFUN([LC_HAVE_PROTECT_I_NLINK], [
989 LB_CHECK_COMPILE([if 'inode->i_nlink' is protected from direct modification],
990 inode_i_nlink_protected, [
991 #include <linux/fs.h>
996 AC_DEFINE(HAVE_PROTECT_I_NLINK, 1,
997 [inode->i_nlink is protected from direct modification])
999 ]) # LC_HAVE_PROTECT_I_NLINK
1002 # 2.6.39 security_inode_init_security takes a 'struct qstr' parameter
1004 # 3.2 security_inode_init_security takes a callback to set xattrs
1006 AC_DEFUN([LC_HAVE_SECURITY_IINITSEC], [
1007 LB_CHECK_COMPILE([if security_inode_init_security takes a callback],
1008 security_inode_init_security_callback, [
1009 #include <linux/security.h>
1011 security_inode_init_security(NULL, NULL, NULL, (const initxattrs)NULL, NULL);
1013 AC_DEFINE(HAVE_SECURITY_IINITSEC_CALLBACK, 1,
1014 [security_inode_init_security takes a callback to set xattrs])
1016 LB_CHECK_COMPILE([if security_inode_init_security takes a 'struct qstr' parameter],
1017 security_inode_init_security_qstr, [
1018 #include <linux/security.h>
1020 security_inode_init_security(NULL, NULL, (struct qstr *)NULL, NULL, NULL, NULL);
1022 AC_DEFINE(HAVE_SECURITY_IINITSEC_QSTR, 1,
1023 [security_inode_init_security takes a 'struct qstr' parameter])
1026 ]) # LC_HAVE_SECURITY_IINITSEC
1029 # LC_HAVE_MIGRATE_HEADER
1031 # 3.3 introduces migrate_mode.h and migratepage has 4 args
1033 AC_DEFUN([LC_HAVE_MIGRATE_HEADER], [
1034 LB_CHECK_FILE([$LINUX/include/linux/migrate.h], [
1035 AC_DEFINE(HAVE_MIGRATE_H, 1,
1036 [kernel has include/linux/migrate.h])
1038 LB_CHECK_FILE([$LINUX/include/linux/migrate_mode.h], [
1039 AC_DEFINE(HAVE_MIGRATE_MODE_H, 1,
1040 [kernel has include/linux/migrate_mode.h])
1043 ]) # LC_HAVE_MIGRATE_HEADER
1046 # LC_MIGRATEPAGE_4ARGS
1048 AC_DEFUN([LC_MIGRATEPAGE_4ARGS], [
1049 LB_CHECK_COMPILE([if 'address_space_operations.migratepage' has 4 args],
1050 address_space_ops_migratepage_4args, [
1051 #include <linux/fs.h>
1052 #ifdef HAVE_MIGRATE_H
1053 #include <linux/migrate.h>
1054 #elif defined(HAVE_MIGRATE_MODE_H)
1055 #include <linux/migrate_mode.h>
1058 struct address_space_operations aops;
1059 aops.migratepage(NULL, NULL, NULL, MIGRATE_ASYNC);
1061 AC_DEFINE(HAVE_MIGRATEPAGE_4ARGS, 1,
1062 [address_space_operations.migratepage has 4 args])
1064 ]) # LC_MIGRATEPAGE_4ARGS
1067 # LC_SUPEROPS_USE_DENTRY
1069 # 3.3 switchs super_operations to use dentry as parameter (but not vfsmount)
1070 # see kernel commit 34c80b1d93e6e20ca9dea0baf583a5b5510d92d4
1072 AC_DEFUN([LC_SUPEROPS_USE_DENTRY], [
1073 tmp_flags="$EXTRA_KCFLAGS"
1074 EXTRA_KCFLAGS="-Werror"
1075 LB_CHECK_COMPILE([if 'super_operations' use 'dentry' as parameter],
1077 #include <linux/fs.h>
1078 int show_options(struct seq_file *seq, struct dentry *root) {
1082 struct super_operations ops;
1083 ops.show_options = show_options;
1085 AC_DEFINE(HAVE_SUPEROPS_USE_DENTRY, 1,
1086 [super_operations use dentry as parameter])
1088 EXTRA_KCFLAGS="$tmp_flags"
1089 ]) # LC_SUPEROPS_USE_DENTRY
1092 # LC_INODEOPS_USE_UMODE_T
1094 # 3.3 switchs inode_operations to use umode_t as parameter (but not int)
1095 # see kernel commit 1a67aafb5f72a436ca044293309fa7e6351d6a35
1097 AC_DEFUN([LC_INODEOPS_USE_UMODE_T], [
1098 tmp_flags="$EXTRA_KCFLAGS"
1099 EXTRA_KCFLAGS="-Werror"
1100 LB_CHECK_COMPILE([if 'inode_operations' use 'umode_t' as parameter],
1101 inode_ops_umode_t, [
1102 #include <linux/fs.h>
1103 #include <linux/types.h>
1104 int my_mknod(struct inode *dir, struct dentry *dchild,
1105 umode_t mode, dev_t dev)
1110 struct inode_operations ops;
1111 ops.mknod = my_mknod;
1113 AC_DEFINE(HAVE_INODEOPS_USE_UMODE_T, 1,
1114 [inode_operations use umode_t as parameter])
1116 EXTRA_KCFLAGS="$tmp_flags"
1117 ]) # LC_INODEOPS_USE_UMODE_T
1120 # LC_KMAP_ATOMIC_HAS_1ARG
1122 # 3.4 kmap_atomic removes second argument
1123 # see kernel commit 1ec9c5ddc17aa398f05646abfcbaf315b544e62f
1125 AC_DEFUN([LC_KMAP_ATOMIC_HAS_1ARG], [
1126 LB_CHECK_COMPILE([if 'kmap_atomic' has only 1 argument],
1128 #include <linux/highmem.h>
1132 AC_DEFINE(HAVE_KMAP_ATOMIC_HAS_1ARG, 1,
1133 [have kmap_atomic has only 1 argument])
1135 ]) # LC_KMAP_ATOMIC_HAS_1ARG
1138 # LC_HAVE_D_MAKE_ROOT
1140 # 3.4 converts d_alloc_root to d_make_root
1141 # see kernel commit 32991ab305ace7017c62f8eecbe5eb36dc32e13b
1143 AC_DEFUN([LC_HAVE_D_MAKE_ROOT], [
1144 LB_CHECK_COMPILE([if have 'd_make_root'],
1146 #include <linux/fs.h>
1148 d_make_root((struct inode *)NULL);
1150 AC_DEFINE(HAVE_D_MAKE_ROOT, 1,
1153 ]) # LC_HAVE_D_MAKE_ROOT
1156 # LC_HAVE_CACHE_REGISTER
1158 # 3.4 cache_register/cache_unregister are removed
1159 # see kernel commit 2c5f846747526e2b83c5f1b8e69016be0e2e87c0
1160 # Note, since 2.6.37 cache_register_net/cache_unregister_net
1161 # are defined, but not exported.
1162 # 3.3 cache_register_net/cache_unregister_net are
1163 # exported and replacing cache_register/cache_unregister in 3.4
1165 AC_DEFUN([LC_HAVE_CACHE_REGISTER], [
1166 LB_CHECK_COMPILE([if have 'cache_register'],
1168 #include <linux/sunrpc/cache.h>
1170 cache_register(NULL);
1172 AC_DEFINE(HAVE_CACHE_REGISTER, 1,
1173 [have cache_register])
1175 ]) # LC_HAVE_CACHE_REGISTER
1178 # LC_HAVE_CLEAR_INODE
1180 # 3.5 renames end_writeback() back to clear_inode()...
1181 # see kernel commit dbd5768f87ff6fb0a4fe09c4d7b6c4a24de99430
1183 AC_DEFUN([LC_HAVE_CLEAR_INODE], [
1184 LB_CHECK_COMPILE([if have 'clear_inode'],
1186 #include <linux/fs.h>
1188 clear_inode((struct inode *)NULL);
1190 AC_DEFINE(HAVE_CLEAR_INODE, 1,
1193 ]) # LC_HAVE_CLEAR_INODE
1196 # LC_HAVE_ENCODE_FH_PARENT
1198 # 3.5 encode_fh has parent inode passed in directly
1199 # see kernel commit b0b0382b
1201 AC_DEFUN([LC_HAVE_ENCODE_FH_PARENT], [
1202 tmp_flags="$EXTRA_KCFLAGS"
1203 EXTRA_KCFLAGS="-Werror"
1204 LB_CHECK_COMPILE([if 'encode_fh' have parent inode as parameter],
1205 encode_fh_parent_inode, [
1206 #include <linux/exportfs.h>
1207 #include <linux/fs.h>
1208 #include <linux/types.h>
1209 int ll_encode_fh(struct inode *i, __u32 *a, int *b, struct inode *p)
1214 struct export_operations exp_op;
1215 exp_op.encode_fh = ll_encode_fh;
1217 AC_DEFINE(HAVE_ENCODE_FH_PARENT, 1,
1218 [have parent inode as parameter])
1220 EXTRA_KCFLAGS="$tmp_flags"
1221 ]) # LC_HAVE_ENCODE_FH_PARENT
1224 # LC_FILE_LLSEEK_SIZE_5ARG
1226 # 3.5 has generic_file_llseek_size with 5 args
1228 AC_DEFUN([LC_FILE_LLSEEK_SIZE_5ARG], [
1229 LB_CHECK_COMPILE([if Linux kernel has 'generic_file_llseek_size' with 5 args],
1230 generic_file_llseek_size_5args, [
1231 #include <linux/fs.h>
1233 generic_file_llseek_size(NULL, 0, 0, 0, 0);
1235 AC_DEFINE(HAVE_FILE_LLSEEK_SIZE_5ARGS, 1,
1236 [kernel has generic_file_llseek_size with 5 args])
1238 ]) # LC_FILE_LLSEEK_SIZE_5ARG
1241 # LC_LLITE_DATA_IS_LIST
1243 # 3.6 switch i_dentry/d_alias from list to hlist
1245 # In the upstream kernels d_alias first changes
1246 # to a hlist and then in later version, 3.11, gets
1247 # moved to the union d_u. Due to some distros having
1248 # d_alias in the d_u union as a struct list, which
1249 # has never existed upstream stream, we can't test
1250 # if d_alias is a list or hlist directly. If ever
1251 # i_dentry and d_alias even up different combos then
1252 # the build will fail. In that case then we will need
1253 # to separate out the i_dentry and d_alias test below.
1255 AC_DEFUN([LC_DATA_FOR_LLITE_IS_LIST], [
1256 tmp_flags="$EXTRA_KCFLAGS"
1257 EXTRA_KCFLAGS="-Werror"
1258 LB_CHECK_COMPILE([if 'i_dentry/d_alias' uses 'list'],
1259 i_dentry_d_alias_list, [
1260 #include <linux/fs.h>
1263 INIT_LIST_HEAD(&inode.i_dentry);
1265 AC_DEFINE(DATA_FOR_LLITE_IS_LIST, 1,
1266 [both i_dentry/d_alias uses list])
1268 EXTRA_KCFLAGS="$tmp_flags"
1269 ]) # LC_DATA_FOR_LLITE_IS_LIST
1272 # LC_DENTRY_OPEN_USE_PATH
1274 # 3.6 dentry_open uses struct path as first argument
1275 # see kernel commit 765927b2
1277 AC_DEFUN([LC_DENTRY_OPEN_USE_PATH], [
1278 tmp_flags="$EXTRA_KCFLAGS"
1279 EXTRA_KCFLAGS="-Werror"
1280 LB_CHECK_COMPILE([if 'dentry_open' uses 'struct path' as first argument],
1282 #include <linux/fs.h>
1283 #include <linux/path.h>
1286 dentry_open(&path, 0, NULL);
1288 AC_DEFINE(HAVE_DENTRY_OPEN_USE_PATH, 1,
1289 [dentry_open uses struct path as first argument])
1291 EXTRA_KCFLAGS="$tmp_flags"
1292 ]) # LC_DENTRY_OPEN_USE_PATH
1295 # LC_HAVE_IOP_ATOMIC_OPEN
1297 # 3.6 vfs adds iop->atomic_open
1299 AC_DEFUN([LC_HAVE_IOP_ATOMIC_OPEN], [
1300 LB_CHECK_COMPILE([if 'iop' has 'atomic_open'],
1301 inode_ops_atomic_open, [
1302 #include <linux/fs.h>
1304 struct inode_operations iop;
1305 iop.atomic_open = NULL;
1307 AC_DEFINE(HAVE_IOP_ATOMIC_OPEN, 1,
1308 [have iop atomic_open])
1310 ]) # LC_HAVE_IOP_ATOMIC_OPEN
1313 # LC_HAVE_SB_START_WRITE
1315 # RHEL6 2.6.32, 3.6 or newer support wrapped FS freeze functions
1317 AC_DEFUN([LC_HAVE_SB_START_WRITE], [
1318 LB_CHECK_COMPILE([if kernel supports wrapped FS freeze functions],
1320 #include <linux/fs.h>
1322 sb_start_write(NULL);
1324 AC_DEFINE(HAVE_SB_START_WRITE, 1,
1325 [kernel supports wrapped FS freeze functions])
1327 ]) # LC_HAVE_SB_START_WRITE
1330 # LC_HAVE_POSIXACL_USER_NS
1332 # 3.7 posix_acl_{to,from}_xattr take struct user_namespace
1334 AC_DEFUN([LC_HAVE_POSIXACL_USER_NS], [
1335 LB_CHECK_COMPILE([if 'posix_acl_to_xattr' takes 'struct user_namespace'],
1336 posix_acl_to_xattr_user_namespace, [
1337 #include <linux/fs.h>
1338 #include <linux/posix_acl_xattr.h>
1340 posix_acl_to_xattr((struct user_namespace *)NULL, NULL, NULL, 0);
1342 AC_DEFINE(HAVE_POSIXACL_USER_NS, 1,
1343 [posix_acl_to_xattr takes struct user_namespace])
1345 ]) # LC_HAVE_POSIXACL_USER_NS
1348 # LC_HAVE_FILE_F_INODE
1350 # 3.8 struct file has new member f_inode
1352 AC_DEFUN([LC_HAVE_FILE_F_INODE], [
1353 LB_CHECK_COMPILE([if 'struct file' has member 'f_inode'],
1355 #include <linux/fs.h>
1357 ((struct file *)0)->f_inode = NULL;
1359 AC_DEFINE(HAVE_FILE_F_INODE, 1,
1360 [struct file has member f_inode])
1362 ]) # LC_HAVE_FILE_F_INODE
1365 # LC_HAVE_FILE_INODE
1367 # 3.8 has introduced inline function file_inode
1369 AC_DEFUN([LC_HAVE_FILE_INODE], [
1370 LB_CHECK_COMPILE([if file_inode() exists],
1372 #include <linux/fs.h>
1376 AC_DEFINE(HAVE_FILE_INODE, 1,
1377 [file_inode() has been defined])
1379 ]) # LC_HAVE_FILE_INODE
1382 # LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
1384 AC_DEFUN([LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS], [
1385 LB_CHECK_COMPILE([if 'sunrpc_cache_pipe_upcall' takes 3 args],
1386 sunrpc_cache_pipe_upcall_3args, [
1387 #include <linux/sunrpc/cache.h>
1389 sunrpc_cache_pipe_upcall(NULL, NULL, NULL);
1391 AC_DEFINE(HAVE_SUNRPC_UPCALL_HAS_3ARGS, 1,
1392 [sunrpc_cache_pipe_upcall takes 3 args])
1394 ]) # LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
1397 # LC_HAVE_HLIST_FOR_EACH_3ARG
1399 # 3.9 uses hlist_for_each_entry with 3 args
1400 # b67bfe0d42cac56c512dd5da4b1b347a23f4b70a
1402 AC_DEFUN([LC_HAVE_HLIST_FOR_EACH_3ARG], [
1403 LB_CHECK_COMPILE([if 'hlist_for_each_entry' has 3 args],
1404 hlist_for_each_entry_3args, [
1405 #include <linux/list.h>
1406 #include <linux/fs.h>
1408 struct hlist_head *head = NULL;
1409 struct inode *inode;
1411 hlist_for_each_entry(inode, head, i_hash) {
1415 AC_DEFINE(HAVE_HLIST_FOR_EACH_3ARG, 1,
1416 [hlist_for_each_entry has 3 args])
1418 ]) # LC_HAVE_HLIST_FOR_EACH_3ARG
1421 # LC_HAVE_BIO_END_SECTOR
1423 # 3.9 introduces bio_end_sector macro
1424 # f73a1c7d117d07a96d89475066188a2b79e53c48
1426 AC_DEFUN([LC_HAVE_BIO_END_SECTOR], [
1427 LB_CHECK_COMPILE([if 'bio_end_sector' is defined],
1429 #include <linux/bio.h>
1433 bio_end_sector(&bio);
1435 AC_DEFINE(HAVE_BIO_END_SECTOR, 1,
1436 [bio_end_sector is defined])
1438 ]) # LC_HAVE_BIO_END_SECTOR
1441 # 3.9 created is_sxid
1443 AC_DEFUN([LC_HAVE_IS_SXID], [
1444 LB_CHECK_COMPILE([if 'is_sxid' is defined],
1446 #include <linux/fs.h>
1450 is_sxid(inode.i_mode);
1452 AC_DEFINE(HAVE_IS_SXID, 1, [is_sxid is defined])
1454 ]) # LC_HAVE_IS_SXID
1457 # LC_HAVE_REMOVE_PROC_SUBTREE
1459 # 3.10 introduced remove_proc_subtree
1461 AC_DEFUN([LC_HAVE_REMOVE_PROC_SUBTREE], [
1462 LB_CHECK_COMPILE([if 'remove_proc_subtree' is defined],
1463 remove_proc_subtree, [
1464 #include <linux/proc_fs.h>
1466 remove_proc_subtree(NULL, NULL);
1468 AC_DEFINE(HAVE_REMOVE_PROC_SUBTREE, 1,
1469 [remove_proc_subtree is defined])
1471 ]) # LC_HAVE_REMOVE_PROC_SUBTREE
1474 # LC_HAVE_PROC_REMOVE
1476 # 3.10 introduced proc_remove
1478 AC_DEFUN([LC_HAVE_PROC_REMOVE], [
1479 LB_CHECK_COMPILE([if 'proc_remove' is defined],
1481 #include <linux/proc_fs.h>
1485 AC_DEFINE(HAVE_PROC_REMOVE, 1,
1486 [proc_remove is defined])
1488 ]) # LC_HAVE_PROC_REMOVE
1491 # LC_BLKDEV_RELEASE_RETURN_INT
1493 # 3.10 release for block device doesn't return int
1495 AC_DEFUN([LC_BLKDEV_RELEASE_RETURN_INT], [
1496 LB_CHECK_COMPILE([if 'block_device_operations' release returns 'int'],
1497 block_device_ops_release_return_int, [
1498 #include <linux/blkdev.h>
1500 struct block_device_operations fops;
1501 int i __attribute__ ((unused));
1503 i = fops.release(NULL, 0);
1505 AC_DEFINE(HAVE_BLKDEV_RELEASE_RETURN_INT, 1,
1506 [block device release returns int])
1508 ]) # LC_BLKDEV_RELEASE_RETURN_INT
1510 AC_DEFUN([LC_HAVE_PROJECT_QUOTA], [
1511 LB_CHECK_COMPILE([if get_projid exists],
1513 #include <linux/quota.h>
1515 struct dquot_operations ops;
1517 ops.get_projid(NULL, NULL);
1519 AC_DEFINE(HAVE_PROJECT_QUOTA, 1,
1520 [get_projid function exists])
1522 ]) # LC_HAVE_PROJECT_QUOTA
1526 # LC_HAVE_SECURITY_DENTRY_INIT_SECURITY
1528 # 3.10 introduced security_dentry_init_security()
1530 AC_DEFUN([LC_HAVE_SECURITY_DENTRY_INIT_SECURITY], [
1531 LB_CHECK_COMPILE([if 'security_dentry_init_security' is defined],
1532 security_dentry_init_security, [
1533 #include <linux/security.h>
1535 security_dentry_init_security(NULL, 0, NULL, NULL, NULL);
1537 AC_DEFINE(HAVE_SECURITY_DENTRY_INIT_SECURITY, 1,
1538 [security_dentry_init_security' is defined])
1540 ]) # LC_HAVE_SECURITY_DENTRY_INIT_SECURITY
1543 # LC_INVALIDATE_RANGE
1545 # 3.11 invalidatepage requires the length of the range to invalidate
1547 AC_DEFUN([LC_INVALIDATE_RANGE], [
1548 LB_CHECK_COMPILE([if 'address_space_operations.invalidatepage' requires 3 arguments],
1549 address_space_ops_invalidatepage_3args, [
1550 #include <linux/fs.h>
1552 struct address_space_operations a_ops;
1553 a_ops.invalidatepage(NULL, 0, 0);
1555 AC_DEFINE(HAVE_INVALIDATE_RANGE, 1,
1556 [address_space_operations.invalidatepage needs 3 arguments])
1558 ]) # LC_INVALIDATE_RANGE
1561 # LC_HAVE_DIR_CONTEXT
1563 # 3.11 readdir now takes the new struct dir_context
1565 AC_DEFUN([LC_HAVE_DIR_CONTEXT], [
1566 LB_CHECK_COMPILE([if 'dir_context' exist],
1568 #include <linux/fs.h>
1570 struct dir_context ctx;
1573 AC_DEFINE(HAVE_DIR_CONTEXT, 1,
1574 [dir_context exist])
1576 ]) # LC_HAVE_DIR_CONTEXT
1579 # LC_D_COMPARE_5ARGS
1581 # 3.11 dentry_operations.d_compare() taken 5 arguments.
1583 AC_DEFUN([LC_D_COMPARE_5ARGS], [
1584 LB_CHECK_COMPILE([if 'd_compare' taken 5 arguments],
1586 #include <linux/dcache.h>
1588 ((struct dentry_operations*)0)->d_compare(NULL,NULL,0,NULL,NULL);
1590 AC_DEFINE(HAVE_D_COMPARE_5ARGS, 1,
1591 [d_compare need 5 arguments])
1593 ]) # LC_D_COMPARE_5ARGS
1598 # 3.11 need to access d_count to get dentry reference count
1600 AC_DEFUN([LC_HAVE_DCOUNT], [
1601 LB_CHECK_COMPILE([if 'd_count' exist],
1603 #include <linux/dcache.h>
1608 AC_DEFINE(HAVE_D_COUNT, 1,
1614 # LC_PID_NS_FOR_CHILDREN
1616 # 3.11 replaces pid_ns by pid_ns_for_children in struct nsproxy
1618 AC_DEFUN([LC_PID_NS_FOR_CHILDREN], [
1619 LB_CHECK_COMPILE([if 'struct nsproxy' has 'pid_ns_for_children'],
1620 pid_ns_for_children, [
1621 #include <linux/nsproxy.h>
1624 ns.pid_ns_for_children = NULL;
1626 AC_DEFINE(HAVE_PID_NS_FOR_CHILDREN, 1,
1627 ['struct nsproxy' has 'pid_ns_for_children'])
1629 ]) # LC_PID_NS_FOR_CHILDREN
1632 # LC_OLDSIZE_TRUNCATE_PAGECACHE
1634 # 3.12 truncate_pagecache without oldsize parameter
1636 AC_DEFUN([LC_OLDSIZE_TRUNCATE_PAGECACHE], [
1637 LB_CHECK_COMPILE([if 'truncate_pagecache' with 'old_size' parameter],
1638 truncate_pagecache_old_size, [
1639 #include <linux/mm.h>
1641 truncate_pagecache(NULL, 0, 0);
1643 AC_DEFINE(HAVE_OLDSIZE_TRUNCATE_PAGECACHE, 1,
1646 ]) # LC_OLDSIZE_TRUNCATE_PAGECACHE
1649 # LC_HAVE_DENTRY_D_U_D_ALIAS
1651 # 3.11 kernel moved d_alias to the union d_u in struct dentry
1653 # Some distros move d_alias to d_u but it is still a struct list
1655 AC_DEFUN([LC_HAVE_DENTRY_D_U_D_ALIAS], [
1656 AS_IF([test "x$lb_cv_compile_i_dentry_d_alias_list" = xyes], [
1657 LB_CHECK_COMPILE([if list 'dentry.d_u.d_alias' exist],
1659 #include <linux/list.h>
1660 #include <linux/dcache.h>
1663 INIT_LIST_HEAD(&de.d_u.d_alias);
1665 AC_DEFINE(HAVE_DENTRY_D_U_D_ALIAS, 1,
1666 [list dentry.d_u.d_alias exist])
1669 LB_CHECK_COMPILE([if hlist 'dentry.d_u.d_alias' exist],
1671 #include <linux/list.h>
1672 #include <linux/dcache.h>
1675 INIT_HLIST_NODE(&de.d_u.d_alias);
1677 AC_DEFINE(HAVE_DENTRY_D_U_D_ALIAS, 1,
1678 [hlist dentry.d_u.d_alias exist])
1681 ]) # LC_HAVE_DENTRY_D_U_D_ALIAS
1684 # LC_HAVE_DENTRY_D_CHILD
1686 # 3.11 kernel d_child has been moved out of the union d_u
1689 AC_DEFUN([LC_HAVE_DENTRY_D_CHILD], [
1690 LB_CHECK_COMPILE([if 'dentry.d_child' exist],
1692 #include <linux/list.h>
1693 #include <linux/dcache.h>
1696 INIT_LIST_HEAD(&de.d_child);
1698 AC_DEFINE(HAVE_DENTRY_D_CHILD, 1,
1699 [dentry.d_child exist])
1701 ]) # LC_HAVE_DENTRY_D_CHILD
1706 # 3.12 ki_left removed from struct kiocb
1708 AC_DEFUN([LC_KIOCB_KI_LEFT], [
1709 LB_CHECK_COMPILE([if 'struct kiocb' with 'ki_left' member],
1711 #include <linux/aio.h>
1713 ((struct kiocb*)0)->ki_left = 0;
1715 AC_DEFINE(HAVE_KIOCB_KI_LEFT, 1,
1718 ]) # LC_KIOCB_KI_LEFT
1721 # LC_VFS_RENAME_5ARGS
1723 # 3.13 has vfs_rename with 5 args
1725 AC_DEFUN([LC_VFS_RENAME_5ARGS], [
1726 LB_CHECK_COMPILE([if Linux kernel has 'vfs_rename' with 5 args],
1728 #include <linux/fs.h>
1730 vfs_rename(NULL, NULL, NULL, NULL, NULL);
1732 AC_DEFINE(HAVE_VFS_RENAME_5ARGS, 1,
1733 [kernel has vfs_rename with 5 args])
1735 ]) # LC_VFS_RENAME_5ARGS
1738 # LC_VFS_UNLINK_3ARGS
1740 # 3.13 has vfs_unlink with 3 args
1742 AC_DEFUN([LC_VFS_UNLINK_3ARGS], [
1743 LB_CHECK_COMPILE([if Linux kernel has 'vfs_unlink' with 3 args],
1745 #include <linux/fs.h>
1747 vfs_unlink(NULL, NULL, NULL);
1749 AC_DEFINE(HAVE_VFS_UNLINK_3ARGS, 1,
1750 [kernel has vfs_unlink with 3 args])
1752 ]) # LC_VFS_UNLINK_3ARGS
1757 # 3.14 move some of its data in struct bio into the new
1760 AC_DEFUN([LC_HAVE_BVEC_ITER], [
1761 LB_CHECK_COMPILE([if Linux kernel has struct bvec_iter],
1763 #include <linux/bio.h>
1765 struct bvec_iter iter;
1766 iter.bi_bvec_done = 0;
1768 AC_DEFINE(HAVE_BVEC_ITER, 1,
1769 [kernel has struct bvec_iter])
1771 ]) # LC_HAVE_BVEC_ITER
1776 # 3.14 adds set_acl method to inode_operations
1777 # see kernel commit 893d46e443346370cd4ea81d9d35f72952c62a37
1779 AC_DEFUN([LC_IOP_SET_ACL], [
1780 LB_CHECK_COMPILE([if 'inode_operations' has '.set_acl' member function],
1781 inode_ops_set_acl, [
1782 #include <linux/fs.h>
1784 struct inode_operations iop;
1787 AC_DEFINE(HAVE_IOP_SET_ACL, 1,
1788 [inode_operations has .set_acl member function])
1795 # 4.4 redefined bi_cnt as __bi_cnt
1797 AC_DEFUN([LC_HAVE_BI_CNT], [
1798 LB_CHECK_COMPILE([if Linux kernel has bi_cnt in struct bio],
1800 #include <asm/atomic.h>
1801 #include <linux/bio.h>
1805 cnt = atomic_read(&bio.bi_cnt);
1807 AC_DEFINE(HAVE_BI_CNT, 1,
1808 [struct bio has bi_cnt])
1813 # LC_HAVE_TRUNCATE_IPAGE_FINAL
1815 # 3.14 bring truncate_inode_pages_final for evict_inode
1817 AC_DEFUN([LC_HAVE_TRUNCATE_IPAGES_FINAL], [
1818 LB_CHECK_COMPILE([if Linux kernel has truncate_inode_pages_final],
1819 truncate_ipages_final, [
1820 #include <linux/mm.h>
1822 truncate_inode_pages_final(NULL);
1824 AC_DEFINE(HAVE_TRUNCATE_INODE_PAGES_FINAL, 1,
1825 [kernel has truncate_inode_pages_final])
1827 ]) # LC_HAVE_TRUNCATE_IPAGES_FINAL
1830 # LC_IOPS_RENAME_WITH_FLAGS
1832 # 3.14 has inode_operations->rename with 5 args
1833 # commit 520c8b16505236fc82daa352e6c5e73cd9870cff
1835 AC_DEFUN([LC_IOPS_RENAME_WITH_FLAGS], [
1836 LB_CHECK_COMPILE([if 'inode_operations->rename' taken flags as argument],
1837 iops_rename_with_flags, [
1838 #include <linux/fs.h>
1840 struct inode *i1 = NULL, *i2 = NULL;
1841 struct dentry *d1 = NULL, *d2 = NULL;
1843 rc = ((struct inode_operations *)0)->rename(i1, d1, i2, d2, 0);
1845 AC_DEFINE(HAVE_IOPS_RENAME_WITH_FLAGS, 1,
1846 [inode_operations->rename need flags as argument])
1848 ]) # LC_IOPS_RENAME_WITH_FLAGS
1851 # LC_VFS_RENAME_6ARGS
1853 # 3.15 has vfs_rename with 6 args
1855 AC_DEFUN([LC_VFS_RENAME_6ARGS], [
1856 LB_CHECK_COMPILE([if Linux kernel has 'vfs_rename' with 6 args],
1858 #include <linux/fs.h>
1860 vfs_rename(NULL, NULL, NULL, NULL, NULL, NULL);
1862 AC_DEFINE(HAVE_VFS_RENAME_6ARGS, 1,
1863 [kernel has vfs_rename with 6 args])
1865 ]) # LC_VFS_RENAME_6ARGS
1868 # LC_DIRECTIO_USE_ITER
1870 # 3.16 kernel changes direct IO to use iov_iter
1872 AC_DEFUN([LC_DIRECTIO_USE_ITER], [
1873 LB_CHECK_COMPILE([if direct IO uses iov_iter],
1875 #include <linux/fs.h>
1877 struct address_space_operations ops;
1878 struct iov_iter *iter = NULL;
1881 ops.direct_IO(0, NULL, iter, offset);
1883 AC_DEFINE(HAVE_DIRECTIO_ITER, 1,
1884 [direct IO uses iov_iter])
1886 ]) # LC_DIRECTIO_USE_ITER
1889 # LC_HAVE_IOV_ITER_INIT_DIRECTION
1892 # 3.16 linux commit 71d8e532b1549a478e6a6a8a44f309d050294d00
1893 # changed iov_iter_init api to start accepting a tag
1894 # that defines if its a read or write operation
1896 AC_DEFUN([LC_HAVE_IOV_ITER_INIT_DIRECTION], [
1897 tmp_flags="$EXTRA_KCFLAGS"
1898 EXTRA_KCFLAGS="-Werror"
1899 LB_CHECK_COMPILE([if 'iov_iter_init' takes a tag],
1901 #include <linux/uio.h>
1902 #include <linux/fs.h>
1904 const struct iovec *iov = NULL;
1906 iov_iter_init(NULL, READ, iov, 1, 0);
1908 AC_DEFINE(HAVE_IOV_ITER_INIT_DIRECTION, 1,
1909 [iov_iter_init handles directional tag])
1911 EXTRA_KCFLAGS="$tmp_flags"
1912 ]) # LC_HAVE_IOV_ITER_INIT_DIRECTION
1915 # LC_HAVE_IOV_ITER_TRUNCATE
1918 # 3.16 introduces a new API iov_iter_truncate()
1920 AC_DEFUN([LC_HAVE_IOV_ITER_TRUNCATE], [
1921 tmp_flags="$EXTRA_KCFLAGS"
1922 EXTRA_KCFLAGS="-Werror"
1923 LB_CHECK_COMPILE([if 'iov_iter_truncate' exists ],
1925 #include <linux/uio.h>
1926 #include <linux/fs.h>
1928 struct iov_iter *i = NULL;
1930 iov_iter_truncate(i, 0);
1932 AC_DEFINE(HAVE_IOV_ITER_TRUNCATE, 1, [iov_iter_truncate exists])
1934 EXTRA_KCFLAGS="$tmp_flags"
1935 ]) # LC_HAVE_IOV_ITER_TRUNCATE
1938 # LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
1940 # 3.16 introduces [read|write]_iter to struct file_operations
1942 AC_DEFUN([LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER], [
1943 LB_CHECK_COMPILE([if 'file_operations.[read|write]_iter' exist],
1944 file_function_iter, [
1945 #include <linux/fs.h>
1947 ((struct file_operations *)NULL)->read_iter(NULL, NULL);
1948 ((struct file_operations *)NULL)->write_iter(NULL, NULL);
1950 AC_DEFINE(HAVE_FILE_OPERATIONS_READ_WRITE_ITER, 1,
1951 [file_operations.[read|write]_iter functions exist])
1953 ]) # LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
1958 # 3.17 replaces key_type::match with match_preparse
1959 # and has new struct key_match_data
1961 AC_DEFUN([LC_KEY_MATCH_DATA], [
1962 LB_CHECK_COMPILE([if struct key_match field exist],
1964 #include <linux/key-type.h>
1966 struct key_match_data data;
1968 AC_DEFINE(HAVE_KEY_MATCH_DATA, 1,
1969 [struct key_match_data exist])
1971 ]) # LC_KEY_MATCH_DATA
1974 # LC_NFS_FILLDIR_USE_CTX
1976 # 3.18 kernel moved from void cookie to struct dir_context
1978 AC_DEFUN([LC_NFS_FILLDIR_USE_CTX], [
1979 tmp_flags="$EXTRA_KCFLAGS"
1980 EXTRA_KCFLAGS="-Werror"
1981 LB_CHECK_COMPILE([if filldir_t uses struct dir_context],
1983 #include <linux/fs.h>
1985 int filldir(struct dir_context *ctx, const char* name,
1986 int i, loff_t off, u64 tmp, unsigned temp)
1991 struct dir_context ctx = {
1995 ctx.actor(NULL, "test", 0, (loff_t) 0, 0, 0);
1997 AC_DEFINE(HAVE_FILLDIR_USE_CTX, 1,
1998 [filldir_t needs struct dir_context as argument])
2000 EXTRA_KCFLAGS="$tmp_flags"
2001 ]) # LC_NFS_FILLDIR_USE_CTX
2004 # LC_PERCPU_COUNTER_INIT
2006 # 3.18 For kernels 3.18 and after percpu_counter_init starts
2007 # to pass a GFP_* memory allocation flag for internal
2008 # memory allocation purposes.
2010 AC_DEFUN([LC_PERCPU_COUNTER_INIT], [
2011 LB_CHECK_COMPILE([if percpu_counter_init uses GFP_* flag as argument],
2012 percpu_counter_init, [
2013 #include <linux/percpu_counter.h>
2015 percpu_counter_init(NULL, 0, GFP_KERNEL);
2017 AC_DEFINE(HAVE_PERCPU_COUNTER_INIT_GFP_FLAG, 1,
2018 [percpu_counter_init uses GFP_* flag])
2020 ]) # LC_PERCPU_COUNTER_INIT
2023 # LC_KIOCB_HAS_NBYTES
2025 # 3.19 kernel removed ki_nbytes from struct kiocb
2027 AC_DEFUN([LC_KIOCB_HAS_NBYTES], [
2028 LB_CHECK_COMPILE([if struct kiocb has ki_nbytes field],
2030 #include <linux/fs.h>
2036 AC_DEFINE(HAVE_KI_NBYTES, 1, [ki_nbytes field exist])
2038 ]) # LC_KIOCB_HAS_NBYTES
2041 # LC_HAVE_DQUOT_QC_DQBLK
2043 # 3.19 has quotactl_ops->[sg]et_dqblk that take struct kqid and qc_dqblk
2044 # Added in commit 14bf61ffe
2046 AC_DEFUN([LC_HAVE_DQUOT_QC_DQBLK], [
2047 tmp_flags="$EXTRA_KCFLAGS"
2048 EXTRA_KCFLAGS="-Werror"
2049 LB_CHECK_COMPILE([if 'quotactl_ops.set_dqblk' takes struct qc_dqblk],
2051 #include <linux/fs.h>
2052 #include <linux/quota.h>
2054 ((struct quotactl_ops *)0)->set_dqblk(NULL, *((struct kqid*)0), (struct qc_dqblk*)0);
2056 AC_DEFINE(HAVE_DQUOT_QC_DQBLK, 1,
2057 [quotactl_ops.set_dqblk takes struct qc_dqblk])
2058 AC_DEFINE(HAVE_DQUOT_KQID, 1,
2059 [quotactl_ops.set_dqblk takes struct kqid])
2061 EXTRA_KCFLAGS="$tmp_flags"
2062 ]) # LC_HAVE_DQUOT_QC_DQBLK
2065 # LC_BACKING_DEV_INFO_REMOVAL
2067 # 3.20 kernel removed backing_dev_info from address_space
2069 AC_DEFUN([LC_BACKING_DEV_INFO_REMOVAL], [
2070 LB_CHECK_COMPILE([if struct address_space has backing_dev_info],
2072 #include <linux/fs.h>
2074 struct address_space mapping;
2076 mapping.backing_dev_info = NULL;
2078 AC_DEFINE(HAVE_BACKING_DEV_INFO, 1, [backing_dev_info exist])
2080 ]) # LC_BACKING_DEV_INFO_REMOVAL
2083 # LC_HAVE_BDI_CAP_MAP_COPY
2085 # 3.20 removed mmap handling for backing devices since
2086 # it breaks on non-MMU systems. See kernel commit
2087 # b4caecd48005fbed3949dde6c1cb233142fd69e9
2089 AC_DEFUN([LC_HAVE_BDI_CAP_MAP_COPY], [
2090 LB_CHECK_COMPILE([if have 'BDI_CAP_MAP_COPY'],
2092 #include <linux/backing-dev.h>
2094 struct backing_dev_info info;
2096 info.capabilities = BDI_CAP_MAP_COPY;
2098 AC_DEFINE(HAVE_BDI_CAP_MAP_COPY, 1,
2099 [BDI_CAP_MAP_COPY exist])
2101 ]) # LC_HAVE_BDI_CAP_MAP_COPY
2104 # LC_CANCEL_DIRTY_PAGE
2106 # 4.0.0 kernel removed cancel_dirty_page
2108 AC_DEFUN([LC_CANCEL_DIRTY_PAGE], [
2109 LB_CHECK_COMPILE([if cancel_dirty_page still exist],
2110 cancel_dirty_page, [
2111 #include <linux/mm.h>
2113 cancel_dirty_page(NULL, PAGE_SIZE);
2115 AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
2116 [cancel_dirty_page is still available])
2118 ]) # LC_CANCEL_DIRTY_PAGE
2123 # 4.1 kernel has iov_iter_rw
2125 AC_DEFUN([LC_IOV_ITER_RW], [
2126 LB_CHECK_COMPILE([if iov_iter_rw exist],
2128 #include <linux/fs.h>
2129 #include <linux/uio.h>
2131 struct iov_iter *iter = NULL;
2135 AC_DEFINE(HAVE_IOV_ITER_RW, 1,
2136 [iov_iter_rw exist])
2141 # LC_HAVE_SYNC_READ_WRITE
2143 # 4.1 new_sync_[read|write] no longer exported
2145 AC_DEFUN([LC_HAVE_SYNC_READ_WRITE], [
2146 LB_CHECK_EXPORT([new_sync_read], [fs/read_write.c],
2147 [AC_DEFINE(HAVE_SYNC_READ_WRITE, 1,
2148 [new_sync_[read|write] is exported by the kernel])])
2149 ]) # LC_HAVE_SYNC_READ_WRITE
2152 # LC_NEW_CANCEL_DIRTY_PAGE
2154 # 4.2 kernel has new cancel_dirty_page
2156 AC_DEFUN([LC_NEW_CANCEL_DIRTY_PAGE], [
2157 LB_CHECK_COMPILE([if cancel_dirty_page with one argument exist],
2158 new_cancel_dirty_page, [
2159 #include <linux/mm.h>
2161 cancel_dirty_page(NULL);
2163 AC_DEFINE(HAVE_NEW_CANCEL_DIRTY_PAGE, 1,
2164 [cancel_dirty_page with one arguement is available])
2166 ]) # LC_NEW_CANCEL_DIRTY_PAGE
2169 # LC_SYMLINK_OPS_USE_NAMEIDATA
2171 # For the 4.2+ kernels the file system internal symlink api no
2172 # longer uses struct nameidata as a argument
2174 AC_DEFUN([LC_SYMLINK_OPS_USE_NAMEIDATA], [
2175 LB_CHECK_COMPILE([if symlink inode operations have struct nameidata argument],
2176 symlink_use_nameidata, [
2177 #include <linux/namei.h>
2178 #include <linux/fs.h>
2180 struct nameidata *nd = NULL;
2182 ((struct inode_operations *)0)->follow_link(NULL, nd);
2183 ((struct inode_operations *)0)->put_link(NULL, nd, NULL);
2185 AC_DEFINE(HAVE_SYMLINK_OPS_USE_NAMEIDATA, 1,
2186 [symlink inode operations need struct nameidata argument])
2188 ]) # LC_SYMLINK_OPS_USE_NAMEIDATA
2191 # LC_BIO_ENDIO_USES_ONE_ARG
2193 # 4.2 kernel bio_endio now only takes one argument
2195 AC_DEFUN([LC_BIO_ENDIO_USES_ONE_ARG], [
2196 LB_CHECK_COMPILE([if 'bio_endio' with one argument exist],
2198 #include <linux/bio.h>
2202 AC_DEFINE(HAVE_BIO_ENDIO_USES_ONE_ARG, 1,
2203 [bio_endio takes only one argument])
2205 ]) # LC_BIO_ENDIO_USES_ONE_ARG
2208 # LC_HAVE_LOOP_CTL_GET_FREE
2210 # 4.x kernel have moved userspace APIs to
2211 # the separate directory and all of them
2212 # support LOOP_CTL_GET_FREE
2214 AC_DEFUN([LC_HAVE_LOOP_CTL_GET_FREE], [
2215 LB_CHECK_FILE([$LINUX/include/linux/loop.h], [
2216 LB_CHECK_COMPILE([if have 'HAVE_LOOP_CTL_GET_FREE'],
2217 LOOP_CTL_GET_FREE, [
2218 #include <linux/loop.h>
2222 i = LOOP_CTL_GET_FREE;
2224 AC_DEFINE(HAVE_LOOP_CTL_GET_FREE, 1,
2225 [LOOP_CTL_GET_FREE exist])
2228 AC_DEFINE(HAVE_LOOP_CTL_GET_FREE, 1,
2229 [kernel has LOOP_CTL_GET_FREE])
2231 ]) # LC_HAVE_LOOP_CTL_GET_FREE
2234 # LC_HAVE_CACHE_HEAD_HLIST
2236 # 4.3 kernel swiched to hlist for cache_head
2238 AC_DEFUN([LC_HAVE_CACHE_HEAD_HLIST], [
2239 LB_CHECK_COMPILE([if 'struct cache_head' has 'cache_list' field],
2240 cache_head_has_hlist, [
2241 #include <linux/sunrpc/cache.h>
2243 do {} while(sizeof(((struct cache_head *)0)->cache_list));
2245 AC_DEFINE(HAVE_CACHE_HEAD_HLIST, 1,
2246 [cache_head has hlist cache_list])
2248 ]) # LC_HAVE_CACHE_HEAD_HLIST
2251 # LC_HAVE_XATTR_HANDLER_SIMPLIFIED
2253 # Kernel version 4.3 commit e409de992e3ea3674393465f07cc71c948edd87a
2254 # simplified xattr_handler handling by passing in the handler pointer
2256 AC_DEFUN([LC_HAVE_XATTR_HANDLER_SIMPLIFIED], [
2257 tmp_flags="$EXTRA_KCFLAGS"
2258 EXTRA_KCFLAGS="-Werror"
2259 LB_CHECK_COMPILE([if 'struct xattr_handler' functions pass in handler pointer],
2260 xattr_handler_simplified, [
2261 #include <linux/xattr.h>
2263 struct xattr_handler handler;
2265 ((struct xattr_handler *)0)->get(&handler, NULL, NULL, NULL, 0);
2266 ((struct xattr_handler *)0)->set(&handler, NULL, NULL, NULL, 0, 0);
2268 AC_DEFINE(HAVE_XATTR_HANDLER_SIMPLIFIED, 1, [handler pointer is parameter])
2270 EXTRA_KCFLAGS="$tmp_flags"
2271 ]) # LC_HAVE_XATTR_HANDLER_SIMPLIFIED
2274 # LC_HAVE_LOCKS_LOCK_FILE_WAIT
2276 # 4.4 kernel have moved locks API users to
2277 # locks_lock_inode_wait()
2279 AC_DEFUN([LC_HAVE_LOCKS_LOCK_FILE_WAIT], [
2280 LB_CHECK_COMPILE([if 'locks_lock_file_wait' exists],
2281 locks_lock_file_wait, [
2282 #include <linux/fs.h>
2284 locks_lock_file_wait(NULL, NULL);
2286 AC_DEFINE(HAVE_LOCKS_LOCK_FILE_WAIT, 1,
2287 [kernel has locks_lock_file_wait])
2289 ]) # LC_HAVE_LOCKS_LOCK_FILE_WAIT
2292 # LC_HAVE_QC_MAKE_REQUEST_FN
2294 # 4.4 request_queue.make_request_fn defined as function returns with blk_qc_t
2295 # see kernel commit dece16353ef47d8d33f5302bc158072a9d65e26f
2297 AC_DEFUN([LC_HAVE_QC_MAKE_REQUEST_FN], [
2298 LB_CHECK_COMPILE([if 'request_queue.make_request_fn' returns blk_qc_t],
2299 make_request_fn_blk_qc_t, [
2300 #include <linux/blkdev.h>
2303 make_request_fn *mrf;
2304 ret = mrf(NULL, NULL);
2306 AC_DEFINE(HAVE_QC_MAKE_REQUEST_FN, 1,
2307 [request_queue.make_request_fn returns blk_qc_t])
2309 ]) # LC_HAVE_QC_MAKE_REQUEST_FN
2312 # LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
2314 # 4.4 kernel merged type-specific data with the payload data for keys
2316 AC_DEFUN([LC_HAVE_KEY_PAYLOAD_DATA_ARRAY], [
2317 LB_CHECK_COMPILE([if 'struct key' has 'payload.data' as an array],
2318 key_payload_data_array, [
2319 #include <linux/key.h>
2321 ((struct key *)0)->payload.data[0] = NULL;
2323 AC_DEFINE(HAVE_KEY_PAYLOAD_DATA_ARRAY, 1, [payload.data is an array])
2325 ]) #LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
2328 # LC_HAVE_FILE_DENTRY
2330 # 4.5 adds wrapper file_dentry
2332 AC_DEFUN([LC_HAVE_FILE_DENTRY], [
2333 LB_CHECK_COMPILE([if Linux kernel has 'file_dentry'],
2335 #include <linux/fs.h>
2339 AC_DEFINE(HAVE_FILE_DENTRY, 1,
2340 [kernel has file_dentry])
2342 ]) # LC_HAVE_FILE_DENTRY
2345 # LC_HAVE_INODE_LOCK
2347 # 4.5 introduced inode_lock
2349 AC_DEFUN([LC_HAVE_INODE_LOCK], [
2350 LB_CHECK_COMPILE([if 'inode_lock' is defined],
2352 #include <linux/fs.h>
2356 AC_DEFINE(HAVE_INODE_LOCK, 1,
2357 [inode_lock is defined])
2359 ]) # LC_HAVE_INODE_LOCK
2362 # LC_HAVE_IOP_GET_LINK
2364 # 4.5 vfs replaced iop->follow_link with
2367 AC_DEFUN([LC_HAVE_IOP_GET_LINK], [
2368 LB_CHECK_COMPILE([if 'iop' has 'get_link'],
2369 inode_ops_get_link, [
2370 #include <linux/fs.h>
2372 struct inode_operations iop;
2373 iop.get_link = NULL;
2375 AC_DEFINE(HAVE_IOP_GET_LINK, 1,
2376 [have iop get_link])
2378 ]) # LC_HAVE_IOP_GET_LINK
2381 # LC_HAVE_IN_COMPAT_SYSCALL
2383 # 4.6 renamed is_compat_task to in_compat_syscall
2385 AC_DEFUN([LC_HAVE_IN_COMPAT_SYSCALL], [
2386 LB_CHECK_COMPILE([if 'in_compat_syscall' is defined],
2387 in_compat_syscall, [
2388 #include <linux/compat.h>
2390 in_compat_syscall();
2392 AC_DEFINE(HAVE_IN_COMPAT_SYSCALL, 1,
2393 [have in_compat_syscall])
2395 ]) # LC_HAVE_IN_COMPAT_SYSCALL
2398 # LC_HAVE_XATTR_HANDLER_INODE_PARAM
2400 # Kernel version 4.6 commit b296821a7c42fa58baa17513b2b7b30ae66f3336
2401 # and commit 5930122683dff58f0846b0f0405b4bd598a3ba6a added inode parameter
2402 # to xattr_handler functions
2404 AC_DEFUN([LC_HAVE_XATTR_HANDLER_INODE_PARAM], [
2405 tmp_flags="$EXTRA_KCFLAGS"
2406 EXTRA_KCFLAGS="-Werror"
2407 LB_CHECK_COMPILE([if 'struct xattr_handler' functions have inode parameter],
2408 xattr_handler_inode_param, [
2409 #include <linux/xattr.h>
2411 const struct xattr_handler handler;
2413 ((struct xattr_handler *)0)->get(&handler, NULL, NULL, NULL, NULL, 0);
2414 ((struct xattr_handler *)0)->set(&handler, NULL, NULL, NULL, NULL, 0, 0);
2416 AC_DEFINE(HAVE_XATTR_HANDLER_INODE_PARAM, 1, [needs inode parameter])
2418 EXTRA_KCFLAGS="$tmp_flags"
2419 ]) # LC_HAVE_XATTR_HANDLER_INODE_PARAM
2424 # Kernel version 4.7 commit c8b8e32d700fe943a935e435ae251364d016c497
2425 # direct-io: eliminate the offset argument to ->direct_IO
2427 AC_DEFUN([LC_DIRECTIO_2ARGS], [
2428 LB_CHECK_COMPILE([if '->direct_IO()' taken 2 arguments],
2430 #include <linux/fs.h>
2432 struct address_space_operations ops;
2433 struct iov_iter *iter = NULL;
2434 struct kiocb *iocb = NULL;
2436 rc = ops.direct_IO(iocb, iter);
2438 AC_DEFINE(HAVE_DIRECTIO_2ARGS, 1,
2439 [direct_IO need 2 arguments])
2441 ]) # LC_DIRECTIO_2ARGS
2444 # LC_GENERIC_WRITE_SYNC_2ARGS
2446 # Kernel version 4.7 commit c8b8e32d700fe943a935e435ae251364d016c497
2447 # direct-io: eliminate the offset argument to ->direct_IO
2449 AC_DEFUN([LC_GENERIC_WRITE_SYNC_2ARGS], [
2450 LB_CHECK_COMPILE([if 'generic_write_sync()' taken 2 arguments],
2451 generic_write_sync_2args, [
2452 #include <linux/fs.h>
2454 struct kiocb *iocb = NULL;
2456 rc = generic_write_sync(iocb, 0);
2458 AC_DEFINE(HAVE_GENERIC_WRITE_SYNC_2ARGS, 1,
2459 [generic_write_sync need 2 arguments])
2461 ]) # LC_GENERIC_WRITE_SYNC_2ARGS
2464 # LC_HAVE_POSIX_ACL_VALID_USER_NS
2466 # 4.8 posix_acl_valid takes struct user_namespace
2468 AC_DEFUN([LC_HAVE_POSIX_ACL_VALID_USER_NS], [
2469 LB_CHECK_COMPILE([if 'posix_acl_valid' takes 'struct user_namespace'],
2471 #include <linux/fs.h>
2472 #include <linux/posix_acl.h>
2474 posix_acl_valid((struct user_namespace*)NULL, (const struct posix_acl*)NULL);
2476 AC_DEFINE(HAVE_POSIX_ACL_VALID_USER_NS, 1,
2477 [posix_acl_valid takes struct user_namespace])
2479 ]) # LC_HAVE_POSIX_ACL_VALID_USER_NS
2482 # LC_D_COMPARE_4ARGS
2484 # Kernel version 4.8 commit 6fa67e707559303e086303aeecc9e8b91ef497d5
2485 # get rid of 'parent' argument of ->d_compare()
2487 AC_DEFUN([LC_D_COMPARE_4ARGS], [
2488 LB_CHECK_COMPILE([if 'd_compare' taken 4 arguments],
2490 #include <linux/dcache.h>
2492 ((struct dentry_operations*)0)->d_compare(NULL,0,NULL,NULL);
2494 AC_DEFINE(HAVE_D_COMPARE_4ARGS, 1,
2495 [d_compare need 4 arguments])
2497 ]) # LC_D_COMPARE_4ARGS
2500 # LC_FULL_NAME_HASH_3ARGS
2502 # Kernel version 4.8 commit 8387ff2577eb9ed245df9a39947f66976c6bcd02
2503 # vfs: make the string hashes salt the hash
2505 AC_DEFUN([LC_FULL_NAME_HASH_3ARGS], [
2506 LB_CHECK_COMPILE([if 'full_name_hash' taken 3 arguments],
2507 full_name_hash_3args, [
2508 #include <linux/stringhash.h>
2511 hash = full_name_hash(NULL,NULL,0);
2513 AC_DEFINE(HAVE_FULL_NAME_HASH_3ARGS, 1,
2514 [full_name_hash need 3 arguments])
2516 ]) # LC_FULL_NAME_HASH_3ARGS
2519 # LC_STRUCT_POSIX_ACL_XATTR
2521 # Kernel version 4.8 commit 2211d5ba5c6c4e972ba6dbc912b2897425ea6621
2522 # posix_acl: xattr representation cleanups
2524 AC_DEFUN([LC_STRUCT_POSIX_ACL_XATTR], [
2525 LB_CHECK_COMPILE([if 'struct posix_acl_xattr_{header,entry}' defined],
2526 struct_posix_acl_xattr, [
2527 #include <linux/fs.h>
2528 #include <linux/posix_acl_xattr.h>
2530 struct posix_acl_xattr_header *h = NULL;
2531 struct posix_acl_xattr_entry *e;
2532 e = (void *)(h + 1);
2534 AC_DEFINE(HAVE_STRUCT_POSIX_ACL_XATTR, 1,
2535 [struct posix_acl_xattr_{header,entry} defined])
2537 ]) # LC_STRUCT_POSIX_ACL_XATTR
2542 # Kernel version 4.8 commit fd50ecaddf8372a1d96e0daeaac0f93cf04e4d42
2543 # removed {get,set,remove}xattr inode operations
2545 AC_DEFUN([LC_IOP_XATTR], [
2546 LB_CHECK_COMPILE([if 'inode_operations' has {get,set,remove}xattr members],
2548 #include <linux/fs.h>
2550 struct inode_operations iop;
2551 iop.setxattr = NULL;
2552 iop.getxattr = NULL;
2553 iop.removexattr = NULL;
2555 AC_DEFINE(HAVE_IOP_XATTR, 1,
2556 [inode_operations has {get,set,remove}xattr members])
2563 # Kernel version 4.9 commit 81243eacfa400f5f7b89f4c2323d0de9982bb0fb
2564 # cred: simpler, 1D supplementary groups
2566 AC_DEFUN([LC_GROUP_INFO_GID], [
2567 LB_CHECK_COMPILE([if 'struct group_info' has member 'gid'],
2569 #include <linux/cred.h>
2572 p = ((struct group_info *)0)->gid;
2574 AC_DEFINE(HAVE_GROUP_INFO_GID, 1,
2575 [struct group_info has member gid])
2577 ]) # LC_GROUP_INFO_GID
2582 # Kernel version 4.9 commit 5d6c31910bc0713e37628dc0ce677dcb13c8ccf4
2583 # added __vfs_{get,set,remove}xattr helpers
2585 AC_DEFUN([LC_VFS_SETXATTR], [
2586 LB_CHECK_COMPILE([if '__vfs_setxattr' helper is available],
2588 #include <linux/xattr.h>
2590 __vfs_setxattr(NULL, NULL, NULL, NULL, 0, 0);
2592 AC_DEFINE(HAVE_VFS_SETXATTR, 1,
2593 ['__vfs_setxattr is available])
2595 ]) # LC_VFS_SETXATTR
2598 # LC_IOP_GENERIC_READLINK
2600 # Kernel version 4.10 commit dfeef68862edd7d4bafe68ef7aeb5f658ef24bb5
2601 # removed generic_readlink from individual file systems
2603 AC_DEFUN([LC_IOP_GENERIC_READLINK], [
2604 LB_CHECK_COMPILE([if 'generic_readlink' still exist],
2605 inode_ops_readlink, [
2606 #include <linux/fs.h>
2608 struct inode_operations iop;
2609 iop.readlink = generic_readlink;
2611 AC_DEFINE(HAVE_IOP_GENERIC_READLINK, 1,
2612 [generic_readlink has been removed])
2614 ]) # LC_IOP_GENERIC_READLINK
2617 # LC_HAVE_VM_FAULT_ADDRESS
2619 # Kernel version 4.10 commit 1a29d85eb0f19b7d8271923d8917d7b4f5540b3e
2620 # removed virtual_address field. Need to use address field instead
2622 AC_DEFUN([LC_HAVE_VM_FAULT_ADDRESS], [
2623 LB_CHECK_COMPILE([if 'struct vm_fault' replaced virtual_address with address field],
2625 #include <linux/mm.h>
2627 struct vm_fault vmf;
2630 AC_DEFINE(HAVE_VM_FAULT_ADDRESS, 1,
2631 [virtual_address has been replaced by address field])
2633 ]) # LC_HAVE_VM_FAULT_ADDRESS
2638 # Lustre linux kernel checks
2640 AC_DEFUN([LC_PROG_LINUX], [
2641 AC_MSG_NOTICE([Lustre kernel checks
2642 ==============================================================================])
2646 LC_CONFIG_HEALTH_CHECK_WRITE
2647 LC_CONFIG_LRU_RESIZE
2649 LC_GLIBC_SUPPORT_FHANDLES
2654 LC_BLK_QUEUE_MAX_SEGMENTS
2657 LC_HAVE_XATTR_HANDLER_FLAGS
2660 LC_HAVE_DQUOT_FS_DISK_QUOTA
2661 LC_HAVE_DQUOT_SUSPEND
2662 LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE
2666 LC_EXPORT_SIMPLE_SETATTR
2667 LC_EXPORT_TRUNCATE_COMPLETE_PAGE
2671 LC_SBOPS_EVICT_INODE
2677 LC_BLKDEV_GET_BY_DEV
2678 LC_GENERIC_PERMISSION
2686 LC_REQUEST_QUEUE_UNPLUG_FN
2687 LC_HAVE_FHANDLE_SYSCALLS
2688 LC_HAVE_FSTYPE_MOUNT
2690 LC_HAVE_INODE_OWNER_OR_CAPABLE
2691 LC_HAVE_SECURITY_IINITSEC
2694 LC_DIRTY_INODE_WITH_FLAG
2698 LC_LM_XXX_LOCK_MANAGER_OPS
2702 LC_INODE_PERMISION_2ARGS
2703 LC_RADIX_EXCEPTION_ENTRY
2704 LC_HAVE_LOOP_CTL_GET_FREE
2707 LC_HAVE_VOID_MAKE_REQUEST_FN
2708 LC_HAVE_PROTECT_I_NLINK
2711 LC_HAVE_MIGRATE_HEADER
2712 LC_MIGRATEPAGE_4ARGS
2713 LC_SUPEROPS_USE_DENTRY
2714 LC_INODEOPS_USE_UMODE_T
2715 LC_HAVE_CACHE_REGISTER
2719 LC_KMAP_ATOMIC_HAS_1ARG
2723 LC_HAVE_ENCODE_FH_PARENT
2724 LC_FILE_LLSEEK_SIZE_5ARG
2727 LC_DATA_FOR_LLITE_IS_LIST
2728 LC_DENTRY_OPEN_USE_PATH
2729 LC_HAVE_IOP_ATOMIC_OPEN
2730 LC_HAVE_SB_START_WRITE
2733 LC_HAVE_POSIXACL_USER_NS
2736 LC_HAVE_FILE_F_INODE
2738 LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
2741 LC_HAVE_HLIST_FOR_EACH_3ARG
2742 LC_HAVE_BIO_END_SECTOR
2746 LC_BLKDEV_RELEASE_RETURN_INT
2747 LC_HAVE_REMOVE_PROC_SUBTREE
2749 LC_HAVE_PROJECT_QUOTA
2750 LC_HAVE_SECURITY_DENTRY_INIT_SECURITY
2757 LC_HAVE_DENTRY_D_U_D_ALIAS
2758 LC_HAVE_DENTRY_D_CHILD
2759 LC_PID_NS_FOR_CHILDREN
2762 LC_OLDSIZE_TRUNCATE_PAGECACHE
2771 LC_HAVE_TRUNCATE_IPAGES_FINAL
2772 LC_IOPS_RENAME_WITH_FLAGS
2779 LC_DIRECTIO_USE_ITER
2780 LC_HAVE_IOV_ITER_INIT_DIRECTION
2781 LC_HAVE_IOV_ITER_TRUNCATE
2782 LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
2788 LC_PERCPU_COUNTER_INIT
2789 LC_NFS_FILLDIR_USE_CTX
2793 LC_HAVE_DQUOT_QC_DQBLK
2796 LC_BACKING_DEV_INFO_REMOVAL
2797 LC_HAVE_BDI_CAP_MAP_COPY
2800 LC_CANCEL_DIRTY_PAGE
2804 LC_HAVE_SYNC_READ_WRITE
2807 LC_NEW_CANCEL_DIRTY_PAGE
2808 LC_BIO_ENDIO_USES_ONE_ARG
2809 LC_SYMLINK_OPS_USE_NAMEIDATA
2812 LC_HAVE_CACHE_HEAD_HLIST
2813 LC_HAVE_XATTR_HANDLER_SIMPLIFIED
2816 LC_HAVE_LOCKS_LOCK_FILE_WAIT
2817 LC_HAVE_QC_MAKE_REQUEST_FN
2818 LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
2826 LC_HAVE_IOP_GET_LINK
2829 LC_HAVE_IN_COMPAT_SYSCALL
2830 LC_HAVE_XATTR_HANDLER_INODE_PARAM
2834 LC_GENERIC_WRITE_SYNC_2ARGS
2837 LC_HAVE_POSIX_ACL_VALID_USER_NS
2839 LC_FULL_NAME_HASH_3ARGS
2840 LC_STRUCT_POSIX_ACL_XATTR
2848 LC_IOP_GENERIC_READLINK
2849 LC_HAVE_VM_FAULT_ADDRESS
2852 AS_IF([test "x$enable_server" != xno], [
2862 # Check whether to build the client side of Lustre
2864 AC_DEFUN([LC_CONFIG_CLIENT], [
2865 AC_MSG_CHECKING([whether to build Lustre client support])
2866 AC_ARG_ENABLE([client],
2867 AC_HELP_STRING([--disable-client],
2868 [disable Lustre client support]),
2869 [], [enable_client="yes"])
2870 AC_MSG_RESULT([$enable_client])
2871 ]) # LC_CONFIG_CLIENT
2876 AC_DEFUN([LB_CONFIG_MPITESTS], [
2877 AC_ARG_ENABLE([mpitests],
2878 AC_HELP_STRING([--enable-mpitests=<yes|no|mpicc wrapper>],
2879 [include mpi tests]), [
2880 enable_mpitests="yes"
2883 MPICC_WRAPPER="mpicc"
2886 enable_mpitests="no"
2889 MPICC_WRAPPER=$enableval
2893 enable_mpitests="yes"
2894 MPICC_WRAPPER="mpicc"
2897 if test "x$enable_mpitests" != "xno"; then
2900 AC_CACHE_CHECK([whether mpitests can be built],
2901 lb_cv_mpi_tests, [AC_COMPILE_IFELSE([AC_LANG_SOURCE([
2905 MPI_Initialized(&flag);
2908 ])], [lb_cv_mpi_tests="yes"], [lb_cv_mpi_tests="no"])
2910 enable_mpitests=$lb_cv_mpi_tests
2913 AC_SUBST(MPICC_WRAPPER)
2914 ]) # LB_CONFIG_MPITESTS
2919 # whether to enable quota support global control
2921 AC_DEFUN([LC_CONFIG_QUOTA], [
2922 AC_MSG_CHECKING([whether to enable quota support global control])
2923 AC_ARG_ENABLE([quota],
2924 AC_HELP_STRING([--enable-quota],
2925 [enable quota support]),
2926 [], [enable_quota="yes"])
2927 AS_IF([test "x$enable_quota" = xyes],
2928 [AC_MSG_RESULT([yes])],
2929 [AC_MSG_RESULT([no])])
2930 ]) # LC_CONFIG_QUOTA
2935 AC_DEFUN([LC_QUOTA], [
2939 AS_IF([test "x$enable_quota" != xno -a "x$enable_utils" != xno], [
2940 AC_CHECK_HEADER([sys/quota.h],
2941 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1,
2942 [Define to 1 if you have <sys/quota.h>.])],
2943 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
2948 # LC_CONFIG_NODEMAP_PROC_DEBUG
2950 # enable nodemap proc file debugging
2952 AC_DEFUN([LC_NODEMAP_PROC_DEBUG], [
2953 AC_MSG_CHECKING([whether to enable nodemap proc debug])
2954 AC_ARG_ENABLE([nodemap_proc_debug],
2955 AC_HELP_STRING([--enable-nodemap-proc-debug],
2956 [enable nodemap proc debug]),
2957 [], [enable_nodemap_proc_debug="no"])
2958 AC_MSG_RESULT([$enable_nodemap_proc_debug])
2959 AS_IF([test "x$enable_nodemap_proc_debug" != xno],
2960 [AC_DEFINE(NODEMAP_PROC_DEBUG, 1,
2961 [enable nodemap proc debug support])])
2962 ]) # LC_NODEMAP_PROC_DEBUG
2967 # configure support for optional OSD implementation
2969 AC_DEFUN([LC_OSD_ADDON], [
2970 AC_MSG_CHECKING([whether to use OSD addon])
2972 AC_HELP_STRING([--with-osd=path],
2973 [set path to optional osd]),
2980 OSDADDON="$with_osd"
2987 AS_IF([test $ENABLEOSDADDON -eq 0], [
2991 OSDMODNAME=$(basename $OSDADDON)
2992 AS_IF([test -e $LUSTRE/$OSDMODNAME], [
2993 AC_MSG_RESULT([can't link])
2995 ], [ln -s $OSDADDON $LUSTRE/$OSDMODNAME], [
2996 AC_MSG_RESULT([$OSDMODNAME])
2997 OSDADDON="subdir-m += $OSDMODNAME"
2999 AC_MSG_RESULT([can't link])
3009 # other configure checks
3011 AC_DEFUN([LC_CONFIGURE], [
3012 AC_MSG_NOTICE([Lustre core checks
3013 ==============================================================================])
3015 LC_CONFIG_OBD_BUFFER_SIZE
3017 AS_IF([test $target_cpu == "i686" -o $target_cpu == "x86_64"],
3018 [CFLAGS="$CFLAGS -Wall -Werror"])
3020 # maximum MDS thread count
3023 # lustre/utils/gss/gss_util.c
3024 # lustre/utils/gss/gssd_proc.c
3025 # lustre/utils/gss/krb5_util.c
3026 # lustre/utils/llog_reader.c
3027 # lustre/utils/create_iam.c
3028 # lustre/utils/libiam.c
3029 AC_CHECK_HEADERS([netdb.h endian.h])
3030 AC_CHECK_FUNCS([gethostbyname])
3032 # lustre/utils/llverdev.c
3033 AC_CHECK_HEADERS([blkid/blkid.h])
3035 # lustre/utils/llverfs.c
3036 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
3039 AC_CHECK_LIB([selinux], [is_selinux_enabled],
3040 [AC_CHECK_HEADERS([selinux/selinux.h],
3041 [SELINUX="-lselinux"
3042 AC_DEFINE([HAVE_SELINUX], 1,
3043 [support for selinux ])],
3046 No libselinux-devel package found, unable to build selinux enabled tools
3051 No selinux package found, unable to build selinux enabled tools
3057 AC_MSG_CHECKING([whether to report minimum OST free space])
3058 AC_ARG_ENABLE([mindf],
3059 AC_HELP_STRING([--enable-mindf],
3060 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
3061 [], [enable_mindf="no"])
3062 AC_MSG_RESULT([$enable_mindf])
3063 AS_IF([test "$enable_mindf" = "yes"],
3064 [AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])])
3066 AC_MSG_CHECKING([whether to randomly failing memory alloc])
3067 AC_ARG_ENABLE([fail_alloc],
3068 AC_HELP_STRING([--disable-fail-alloc],
3069 [disable randomly alloc failure]),
3070 [], [enable_fail_alloc="yes"])
3071 AC_MSG_RESULT([$enable_fail_alloc])
3072 AS_IF([test "x$enable_fail_alloc" != xno],
3073 [AC_DEFINE([RANDOM_FAIL_ALLOC], 1,
3074 [enable randomly alloc failure])])
3076 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
3077 AC_ARG_ENABLE([invariants],
3078 AC_HELP_STRING([--enable-invariants],
3079 [enable invariant checking (cpu intensive)]),
3080 [], [enable_invariants="no"])
3081 AC_MSG_RESULT([$enable_invariants])
3082 AS_IF([test "x$enable_invariants" = xyes],
3083 [AC_DEFINE([CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK], 1,
3084 [enable invariant checking])])
3086 AC_MSG_CHECKING([whether to track references with lu_ref])
3087 AC_ARG_ENABLE([lu_ref],
3088 AC_HELP_STRING([--enable-lu_ref],
3089 [enable lu_ref reference tracking code]),
3090 [], [enable_lu_ref="no"])
3091 AC_MSG_RESULT([$enable_lu_ref])
3092 AS_IF([test "x$enable_lu_ref" = xyes],
3093 [AC_DEFINE([USE_LU_REF], 1,
3094 [enable lu_ref reference tracking code])])
3096 AC_MSG_CHECKING([whether to enable page state tracking])
3097 AC_ARG_ENABLE([pgstate-track],
3098 AC_HELP_STRING([--enable-pgstate-track],
3099 [enable page state tracking]),
3100 [], [enable_pgstat_track="no"])
3101 AC_MSG_RESULT([$enable_pgstat_track])
3102 AS_IF([test "x$enable_pgstat_track" = xyes],
3103 [AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
3104 [enable page state tracking code])])
3107 AC_MSG_CHECKING([systemd unit file directory])
3108 AC_ARG_WITH([systemdsystemunitdir],
3109 [AS_HELP_STRING([--with-systemdsystemunitdir=DIR],
3110 [Directory for systemd service files])],
3111 [], [with_systemdsystemunitdir=auto])
3112 AS_IF([test "x$with_systemdsystemunitdir" = "xyes" -o "x$with_systemdsystemunitdir" = "xauto"],
3113 [def_systemdsystemunitdir=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)
3114 AS_IF([test "x$def_systemdsystemunitdir" = "x"],
3115 [AS_IF([test "x$with_systemdsystemunitdir" = "xyes"],
3116 [AC_MSG_ERROR([systemd support requested but pkg-config unable to query systemd package])])
3117 with_systemdsystemunitdir=no],
3118 [with_systemdsystemunitdir="$def_systemdsystemunitdir"])])
3119 AS_IF([test "x$with_systemdsystemunitdir" != "xno"],
3120 [AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])])
3121 AC_MSG_RESULT([$with_systemdsystemunitdir])
3127 # AM_CONDITIONALS for lustre
3129 AC_DEFUN([LC_CONDITIONALS], [
3130 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
3131 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
3132 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
3133 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
3134 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
3135 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
3136 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
3137 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
3138 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
3139 AM_CONDITIONAL(GSS_SSK, test x$enable_ssk = xyes)
3140 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
3141 AM_CONDITIONAL(HAVE_SYSTEMD, test "x$with_systemdsystemunitdir" != "xno")
3142 AM_CONDITIONAL(XATTR_HANDLER, test "x$lb_cv_compile_xattr_handler_flags" = xyes)
3143 ]) # LC_CONDITIONALS
3148 # files that should be generated with AC_OUTPUT
3150 AC_DEFUN([LC_CONFIG_FILES],
3154 lustre/autoconf/Makefile
3155 lustre/conf/Makefile
3156 lustre/contrib/Makefile
3158 lustre/include/Makefile
3159 lustre/include/lustre/Makefile
3160 lustre/include/uapi/linux/Makefile
3161 lustre/kernel_patches/targets/3.10-rhel7.target
3162 lustre/kernel_patches/targets/2.6-rhel6.9.target
3163 lustre/kernel_patches/targets/2.6-rhel6.8.target
3164 lustre/kernel_patches/targets/2.6-rhel6.7.target
3165 lustre/kernel_patches/targets/2.6-rhel6.6.target
3166 lustre/kernel_patches/targets/2.6-rhel6.target
3167 lustre/kernel_patches/targets/2.6-rhel5.target
3168 lustre/kernel_patches/targets/2.6-sles11.target
3169 lustre/kernel_patches/targets/3.0-sles11.target
3170 lustre/kernel_patches/targets/3.0-sles11sp3.target
3171 lustre/kernel_patches/targets/3.0-sles11sp4.target
3172 lustre/kernel_patches/targets/3.12-sles12.target
3173 lustre/kernel_patches/targets/4.4-sles12.target
3174 lustre/kernel_patches/targets/2.6-fc11.target
3175 lustre/kernel_patches/targets/2.6-fc12.target
3176 lustre/kernel_patches/targets/2.6-fc15.target
3177 lustre/kernel_patches/targets/3.x-fc18.target
3178 lustre/ldlm/Makefile
3180 lustre/fid/autoMakefile
3181 lustre/llite/Makefile
3182 lustre/llite/autoMakefile
3184 lustre/lov/autoMakefile
3186 lustre/mdc/autoMakefile
3188 lustre/lmv/autoMakefile
3189 lustre/lfsck/Makefile
3190 lustre/lfsck/autoMakefile
3192 lustre/mdt/autoMakefile
3194 lustre/mdd/autoMakefile
3196 lustre/fld/autoMakefile
3197 lustre/obdclass/Makefile
3198 lustre/obdclass/autoMakefile
3199 lustre/obdclass/linux/Makefile
3200 lustre/obdecho/Makefile
3201 lustre/obdecho/autoMakefile
3203 lustre/ofd/autoMakefile
3205 lustre/osc/autoMakefile
3207 lustre/ost/autoMakefile
3208 lustre/osd-ldiskfs/Makefile
3209 lustre/osd-ldiskfs/autoMakefile
3210 lustre/osd-zfs/Makefile
3211 lustre/osd-zfs/autoMakefile
3213 lustre/mgc/autoMakefile
3215 lustre/mgs/autoMakefile
3216 lustre/target/Makefile
3217 lustre/ptlrpc/Makefile
3218 lustre/ptlrpc/autoMakefile
3219 lustre/ptlrpc/gss/Makefile
3220 lustre/ptlrpc/gss/autoMakefile
3221 lustre/quota/Makefile
3222 lustre/quota/autoMakefile
3223 lustre/scripts/Makefile
3224 lustre/scripts/systemd/Makefile
3225 lustre/tests/Makefile
3226 lustre/tests/mpi/Makefile
3227 lustre/tests/kernel/Makefile
3228 lustre/tests/kernel/autoMakefile
3229 lustre/utils/Makefile
3230 lustre/utils/gss/Makefile
3232 lustre/osp/autoMakefile
3234 lustre/lod/autoMakefile
3236 ]) # LC_CONFIG_FILES