4 # Wrapper for AC_CONFIG_SUBDIR
6 AC_DEFUN([LC_CONFIG_SRCDIR], [
7 AC_CONFIG_SRCDIR([lustre/obdclass/obdo.c])
15 # lustre specific paths
17 AC_DEFUN([LC_PATH_DEFAULTS], [
18 # ptlrpc kernel build requires this
26 demodir='$(docdir)/demo'
29 pkgexampledir='${pkgdatadir}/examples'
30 AC_SUBST(pkgexampledir)
36 # is the target os supported?
38 AC_DEFUN([LC_TARGET_SUPPORTED], [
47 ]) # LC_TARGET_SUPPORTED
50 # LC_GLIBC_SUPPORT_FHANDLES
52 AC_DEFUN([LC_GLIBC_SUPPORT_FHANDLES], [
53 AC_CHECK_FUNCS([name_to_handle_at],
54 [AC_DEFINE(HAVE_FHANDLE_GLIBC_SUPPORT, 1,
55 [file handle and related syscalls are supported])],
56 [AC_MSG_WARN([file handle and related syscalls are not supported])])
57 ]) # LC_GLIBC_SUPPORT_FHANDLES
62 # Ensure the stack size is at least 8k in Lustre server (all kernels)
64 AC_DEFUN([LC_STACK_SIZE], [
65 LB_CHECK_COMPILE([if stack size is at least 8k],
67 #include <linux/thread_info.h>
69 #if THREAD_SIZE < 8192
70 #error "stack size < 8192"
72 ], [], [AC_MSG_ERROR([
74 Lustre requires that Linux is configured with at least a 8KB stack.
81 # Allow the user to set the MDS thread upper limit
83 AC_DEFUN([LC_MDS_MAX_THREADS], [
84 AC_MSG_CHECKING([for maximum number of MDS threads])
85 AC_ARG_WITH([mds_max_threads],
86 AC_HELP_STRING([--with-mds-max-threads=count],
87 [maximum threads available on the MDS: (default=512)]),
88 [AC_DEFINE_UNQUOTED(MDS_MAX_THREADS, $with_mds_max_threads,
89 [maximum number of MDS threads])])
90 AC_MSG_RESULT([$with_mds_max_threads])
91 ]) # LC_MDS_MAX_THREADS
96 # the pinger is temporary, until we have the recovery node in place
98 AC_DEFUN([LC_CONFIG_PINGER], [
99 AC_MSG_CHECKING([whether to enable Lustre pinger support])
100 AC_ARG_ENABLE([pinger],
101 AC_HELP_STRING([--disable-pinger],
102 [disable recovery pinger support]),
103 [], [enable_pinger="yes"])
104 AC_MSG_RESULT([$enable_pinger])
105 AS_IF([test "x$enable_pinger" != xno],
106 [AC_DEFINE(ENABLE_PINGER, 1,[Use the Pinger])])
107 ]) # LC_CONFIG_PINGER
112 # do checksum of bulk data between client and OST
114 AC_DEFUN([LC_CONFIG_CHECKSUM], [
115 AC_MSG_CHECKING([whether to enable data checksum support])
116 AC_ARG_ENABLE([checksum],
117 AC_HELP_STRING([--disable-checksum],
118 [disable data checksum support]),
119 [], [enable_checksum="yes"])
120 AC_MSG_RESULT([$enable_checksum])
121 AS_IF([test "x$enable_checksum" != xno],
122 [AC_DEFINE(ENABLE_CHECKSUM, 1, [do data checksums])])
123 ]) # LC_CONFIG_CHECKSUM
126 # LC_CONFIG_HEALTH_CHECK_WRITE
128 # Turn off the actual write to the disk
130 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE], [
131 AC_MSG_CHECKING([whether to enable a write with the health check])
132 AC_ARG_ENABLE([health_write],
133 AC_HELP_STRING([--enable-health_write],
134 [enable disk writes when doing health check]),
135 [], [enable_health_write="no"])
136 AC_MSG_RESULT([$enable_health_write])
137 AS_IF([test "x$enable_health_write" != xno],
138 [AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, [Write when Checking Health])])
139 ]) # LC_CONFIG_HEALTH_CHECK_WRITE
142 # LC_CONFIG_LRU_RESIZE
144 AC_DEFUN([LC_CONFIG_LRU_RESIZE], [
145 AC_MSG_CHECKING([whether to enable lru self-adjusting])
146 AC_ARG_ENABLE([lru_resize],
147 AC_HELP_STRING([--enable-lru-resize],
148 [enable lru resize support]),
149 [], [enable_lru_resize="yes"])
150 AC_MSG_RESULT([$enable_lru_resize])
151 AS_IF([test "x$enable_lru_resize" != xno],
152 [AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])])
153 ]) # LC_CONFIG_LRU_RESIZE
158 # Quota support. The kernel must support CONFIG_QUOTA.
160 AC_DEFUN([LC_QUOTA_CONFIG], [
161 LB_CHECK_CONFIG_IM([QUOTA], [],
164 Lustre quota requires that CONFIG_QUOTA is enabled in your kernel.
169 # LC_EXPORT_TRUNCATE_COMPLETE_PAGE
171 # truncate_complete_page() has never been exported from an upstream kernel
172 # remove_from_page_cache() was exported between 2.6.35 and 2.6.38
173 # delete_from_page_cache() is exported from 2.6.39
175 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE_PAGE], [
176 LB_CHECK_EXPORT([truncate_complete_page], [mm/truncate.c],
177 [AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
178 [kernel export truncate_complete_page])])
179 LB_CHECK_EXPORT([remove_from_page_cache], [mm/filemap.c],
180 [AC_DEFINE(HAVE_REMOVE_FROM_PAGE_CACHE, 1,
181 [kernel export remove_from_page_cache])])
182 LB_CHECK_EXPORT([delete_from_page_cache], [mm/filemap.c],
183 [AC_DEFINE(HAVE_DELETE_FROM_PAGE_CACHE, 1,
184 [kernel export delete_from_page_cache])])
185 ]) # LC_EXPORT_TRUNCATE_COMPLETE_PAGE
188 # LC_CONFIG_GSS_KEYRING
190 # default 'auto', tests for dependencies, if found, enables;
191 # only called if gss is enabled
193 AC_DEFUN([LC_CONFIG_GSS_KEYRING], [
194 AC_MSG_CHECKING([whether to enable gss keyring backend])
195 AC_ARG_ENABLE([gss_keyring],
196 [AC_HELP_STRING([--disable-gss-keyring],
197 [disable gss keyring backend])],
198 [], [enable_gss_keyring="auto"])
199 AC_MSG_RESULT([$enable_gss_keyring])
200 AS_IF([test "x$enable_gss_keyring" != xno], [
201 LB_CHECK_CONFIG_IM([KEYS], [], [
202 gss_keyring_conf_test="fail"
203 AC_MSG_WARN([GSS keyring backend requires that CONFIG_KEYS be enabled in your kernel.])])
205 AC_CHECK_LIB([keyutils], [keyctl_search], [], [
206 gss_keyring_conf_test="fail"
207 AC_MSG_WARN([GSS keyring backend requires libkeyutils])])
209 AS_IF([test "x$gss_keyring_conf_test" != xfail], [
210 AC_DEFINE([HAVE_GSS_KEYRING], [1],
211 [Define this if you enable gss keyring backend])
212 enable_gss_keyring="yes"
214 AS_IF([test "x$enable_gss_keyring" = xyes], [
215 AC_MSG_ERROR([Cannot enable gss_keyring. See above for details.])
219 ]) # LC_CONFIG_GSS_KEYRING
222 # LC_HAVE_CRED_TGCRED
224 # rhel7 struct cred has no member tgcred
226 AC_DEFUN([LC_HAVE_CRED_TGCRED], [
227 LB_CHECK_COMPILE([if 'struct cred' has member 'tgcred'],
229 #include <linux/cred.h>
231 ((struct cred *)0)->tgcred = NULL;
233 AC_DEFINE(HAVE_CRED_TGCRED, 1,
234 [struct cred has member tgcred])
236 ]) # LC_HAVE_CRED_TGCRED
239 # LC_KEY_TYPE_INSTANTIATE_2ARGS
241 # rhel7 key_type->instantiate takes 2 args (struct key, struct key_preparsed_payload)
243 AC_DEFUN([LC_KEY_TYPE_INSTANTIATE_2ARGS], [
244 LB_CHECK_COMPILE([if 'key_type->instantiate' has two args],
245 key_type_instantiate_2args, [
246 #include <linux/key-type.h>
248 ((struct key_type *)0)->instantiate(0, NULL);
250 AC_DEFINE(HAVE_KEY_TYPE_INSTANTIATE_2ARGS, 1,
251 [key_type->instantiate has two args])
253 ]) # LC_KEY_TYPE_INSTANTIATE_2ARGS
258 AC_DEFUN([LC_CONFIG_SUNRPC], [
259 LB_CHECK_CONFIG_IM([SUNRPC], [], [
260 AS_IF([test "x$sunrpc_required" = xyes], [
263 kernel SUNRPC support is required by using GSS.
266 ]) # LC_CONFIG_SUNRPC
269 # LC_HAVE_CRYPTO_HASH
271 # 4.6 kernel commit 896545098777564212b9e91af4c973f094649aa7
272 # removed crypto_hash support. Since GSS only works with
273 # crypto_hash it has to be disabled for newer distros.
275 AC_DEFUN([LC_HAVE_CRYPTO_HASH], [
276 LB_CHECK_COMPILE([if crypto_hash API is supported],
278 #include <linux/crypto.h>
280 crypto_hash_digestsize(NULL);
281 ], [], [enable_gss="no"])
283 ]) # LC_HAVE_CRYPTO_HASH
286 # LC_CONFIG_GSS (default 'auto' (tests for dependencies, if found, enables))
288 # Build gss and related tools of Lustre. Currently both kernel and user space
289 # parts are depend on linux platform.
291 AC_DEFUN([LC_CONFIG_GSS], [
292 AC_MSG_CHECKING([whether to enable gss support])
294 [AC_HELP_STRING([--enable-gss], [enable gss support])],
295 [], [enable_gss="auto"])
296 AC_MSG_RESULT([$enable_gss])
298 AS_IF([test "x$enable_gss" != xno], [
299 LC_CONFIG_GSS_KEYRING
302 LC_KEY_TYPE_INSTANTIATE_2ARGS
303 sunrpc_required=$enable_gss
307 LB_CHECK_CONFIG_IM([CRYPTO_MD5], [],
308 [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
309 LB_CHECK_CONFIG_IM([CRYPTO_SHA1], [],
310 [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
311 LB_CHECK_CONFIG_IM([CRYPTO_SHA256], [],
312 [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
313 LB_CHECK_CONFIG_IM([CRYPTO_SHA512], [],
314 [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
316 require_krb5=$enable_gss
320 AS_IF([test -n "$KRBDIR"], [
321 gss_conf_test="success"
323 gss_conf_test="failure"
326 AS_IF([test "x$gss_conf_test" = xsuccess], [
327 AC_DEFINE([HAVE_GSS], [1], [Define this is if you enable gss])
333 enable_ssk=$enable_gss
339 # OpenSSL 1.0+ return int for HMAC functions but older SLES11 versions do not
340 AC_DEFUN([LC_OPENSSL_SSK], [
341 AC_MSG_CHECKING([whether OpenSSL has functions needed for SSK])
342 AS_IF([test "x$enable_ssk" != xno], [
343 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
344 #include <openssl/hmac.h>
345 #include <openssl/evp.h>
351 rc = HMAC_Init_ex(&ctx, "test", 4, EVP_md_null(), NULL);
353 ])],[AC_DEFINE(HAVE_OPENSSL_SSK, 1,
354 [OpenSSL HMAC functions needed for SSK])],
357 AC_MSG_RESULT([$enable_ssk])
360 # LC_INODE_PERMISION_2ARGS
362 # up to v2.6.27 had a 3 arg version (inode, mask, nameidata)
363 # v2.6.27->v2.6.37 had a 2 arg version (inode, mask)
364 # v2.6.37->v3.0 had a 3 arg version (inode, mask, nameidata)
365 # v3.1 onward have a 2 arg version (inode, mask)
367 AC_DEFUN([LC_INODE_PERMISION_2ARGS], [
368 LB_CHECK_COMPILE([if 'inode_operations->permission' has two args],
369 inode_ops_permission_2args, [
370 #include <linux/fs.h>
372 struct inode *inode __attribute__ ((unused));
375 inode->i_op->permission(NULL, 0);
377 AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
378 [inode_operations->permission has two args])
380 ]) # LC_INODE_PERMISION_2ARGS
383 # LC_BLK_QUEUE_MAX_SEGMENTS
385 # 2.6.32 replaces 2 functions blk_queue_max_phys_segments and blk_queue_max_hw_segments by blk_queue_max_segments
387 AC_DEFUN([LC_BLK_QUEUE_MAX_SEGMENTS], [
388 LB_CHECK_COMPILE([if 'blk_queue_max_segments' is defined],
389 blk_queue_max_segments, [
390 #include <linux/blkdev.h>
392 blk_queue_max_segments(NULL, 0);
394 AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
395 [blk_queue_max_segments is defined])
397 ]) # LC_BLK_QUEUE_MAX_SEGMENTS
400 # LC_HAVE_XATTR_HANDLER_FLAGS
402 # 2.6.33 added a private flag to xattr_handler
404 AC_DEFUN([LC_HAVE_XATTR_HANDLER_FLAGS], [
405 LB_CHECK_COMPILE([if 'struct xattr_handler' has flags field],
406 xattr_handler_flags, [
407 #include <linux/xattr.h>
409 struct xattr_handler handler;
413 AC_DEFINE(HAVE_XATTR_HANDLER_FLAGS, 1, [flags field exist])
415 ]) # LC_HAVE_XATTR_HANDLER_FLAGS
418 # LC_HAVE_DQUOT_FS_DISK_QUOTA
420 # 2.6.34 has quotactl_ops->[sg]et_dqblk that take struct fs_disk_quota
422 AC_DEFUN([LC_HAVE_DQUOT_FS_DISK_QUOTA], [
423 tmp_flags="$EXTRA_KCFLAGS"
424 EXTRA_KCFLAGS="-Werror"
425 LB_CHECK_COMPILE([if 'quotactl_ops.set_dqblk' takes struct fs_disk_quota],
427 #include <linux/fs.h>
428 #include <linux/quota.h>
430 ((struct quotactl_ops *)0)->set_dqblk(NULL, 0, 0, (struct fs_disk_quota*)0);
432 AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1,
433 [quotactl_ops.set_dqblk takes struct fs_disk_quota])
435 LB_CHECK_COMPILE([if 'quotactl_ops.set_dqblk' takes struct kqid & fs_disk_quota],
436 kqid_fs_disk_quota, [
437 #include <linux/fs.h>
438 #include <linux/quota.h>
440 ((struct quotactl_ops *)0)->set_dqblk((struct super_block*)0, *((struct kqid*)0), (struct fs_disk_quota*)0);
442 AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1,
443 [quotactl_ops.set_dqblk takes struct fs_disk_quota])
444 AC_DEFINE(HAVE_DQUOT_KQID, 1,
445 [quotactl_ops.set_dqblk takes struct kqid])
448 EXTRA_KCFLAGS="$tmp_flags"
449 ]) # LC_HAVE_DQUOT_FS_DISK_QUOTA
452 # LC_HAVE_DQUOT_SUSPEND
454 # 2.6.34 has renamed dquot options to dquot_*, check for dquot_suspend
456 AC_DEFUN([LC_HAVE_DQUOT_SUSPEND], [
457 LB_CHECK_COMPILE([if 'dquot_suspend' is defined],
459 #include <linux/quotaops.h>
461 dquot_suspend(NULL, -1);
463 AC_DEFINE(HAVE_DQUOT_SUSPEND, 1, [dquot_suspend is defined])
465 ]) # LC_HAVE_DQUOT_SUSPEND
470 # Check if kernel has been patched for 64-bit quota limits support.
471 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
472 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
473 # that in the absence of quotaio_v1.h in the kernel headers.
475 AC_DEFUN([LC_QUOTA64], [
476 tmp_flags="$EXTRA_KCFLAGS"
477 EXTRA_KCFLAGS="-I$LINUX/fs"
478 LB_CHECK_COMPILE([if kernel has 64-bit quota limits support],
480 #include <linux/kernel.h>
481 #include <linux/fs.h>
482 #if defined(HAVE_FS_QUOTA_QUOTAIO_H)
483 #include <quota/quotaio_v2.h>
484 struct v2r1_disk_dqblk dqblk_r1;
486 #include <linux/quota.h>
487 int ver = QFMT_VFS_V1;
490 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
492 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],
493 [AC_MSG_ERROR([You have got no 64-bit kernel quota support.])])
495 EXTRA_KCFLAGS=$tmp_flags
499 # LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE
501 # 2.6.34 adds __add_wait_queue_exclusive
503 AC_DEFUN([LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE], [
504 LB_CHECK_COMPILE([if '__add_wait_queue_exclusive' exists],
505 __add_wait_queue_exclusive, [
506 #include <linux/wait.h>
508 wait_queue_head_t queue;
510 __add_wait_queue_exclusive(&queue, &wait);
512 AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1,
513 [__add_wait_queue_exclusive exists])
515 ]) # LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE
518 # LC_FS_STRUCT_RWLOCK
520 # 2.6.36 fs_struct.lock use spinlock instead of rwlock.
522 AC_DEFUN([LC_FS_STRUCT_RWLOCK], [
523 LB_CHECK_COMPILE([if 'fs_struct.lock' use rwlock],
525 #include <asm/atomic.h>
526 #include <linux/spinlock.h>
527 #include <linux/fs_struct.h>
529 ((struct fs_struct *)0)->lock = (rwlock_t){ 0 };
531 AC_DEFINE(HAVE_FS_STRUCT_RWLOCK, 1, [fs_struct.lock use rwlock])
533 ]) # LC_FS_STRUCT_RWLOCK
536 # LC_SBOPS_EVICT_INODE
538 # 2.6.36 super_operations add evict_inode method. it hybird of
539 # delete_inode & clear_inode.
541 AC_DEFUN([LC_SBOPS_EVICT_INODE], [
542 LB_CHECK_COMPILE([if 'super_operations.evict_inode' exist],
543 super_ops_evict_inode, [
544 #include <linux/fs.h>
546 ((struct super_operations *)0)->evict_inode(NULL);
548 AC_DEFINE(HAVE_SBOPS_EVICT_INODE, 1,
549 [super_operations.evict_inode() is exist in kernel])
551 ]) # LC_SBOPS_EVICT_INODE
556 # 2.6.35 file_operations.fsync taken 2 arguments.
557 # 3.0.0 file_operations.fsync takes 4 arguments.
559 AC_DEFUN([LC_FILE_FSYNC], [
560 LB_CHECK_COMPILE([if 'file_operations.fsync' takes 4 arguments],
561 file_ops_fsync_4args, [
562 #include <linux/fs.h>
564 ((struct file_operations *)0)->fsync(NULL, 0, 0, 0);
566 AC_DEFINE(HAVE_FILE_FSYNC_4ARGS, 1,
567 [file_operations.fsync takes 4 arguments])
569 LB_CHECK_COMPILE([if 'file_operations.fsync' takes 2 arguments],
570 file_ops_fsync_2args, [
571 #include <linux/fs.h>
573 ((struct file_operations *)0)->fsync(NULL, 0);
575 AC_DEFINE(HAVE_FILE_FSYNC_2ARGS, 1,
576 [file_operations.fsync takes 2 arguments])
584 # 2.6.37 remove kernel_locked
586 AC_DEFUN([LC_KERNEL_LOCKED], [
587 LB_CHECK_COMPILE([if 'kernel_locked' is defined],
589 #include <linux/smp_lock.h>
593 AC_DEFINE(HAVE_KERNEL_LOCKED, 1, [kernel_locked is defined])
595 ]) # LC_KERNEL_LOCKED
600 # 2.6.38 dentry_operations.d_compare() taken 7 arguments.
602 AC_DEFUN([LC_D_COMPARE_7ARGS], [
603 LB_CHECK_COMPILE([if 'dentry_operations.d_compare()' taken 7 arguments],
604 dentry_ops_d_compare_7arg, [
605 #include <linux/dcache.h>
607 ((struct dentry_operations*)0)->d_compare(NULL,NULL,NULL,NULL,0,NULL,NULL);
609 AC_DEFINE(HAVE_D_COMPARE_7ARGS, 1, [d_compare need 7 arguments])
611 ]) # LC_D_COMPARE_7ARGS
616 # 2.6.38 dentry_operations.d_delete() defined 'const' for 1st parameter.
618 AC_DEFUN([LC_D_DELETE_CONST], [
619 tmp_flags="$EXTRA_KCFLAGS"
620 EXTRA_KCFLAGS="-Werror"
621 LB_CHECK_COMPILE([if 'dentry_operations.d_delete()' has const declare on first parameter],
622 dentry_ops_d_delete_1st_const, [
623 #include <linux/dcache.h>
625 const struct dentry *d = NULL;
626 ((struct dentry_operations*)0)->d_delete(d);
628 AC_DEFINE(HAVE_D_DELETE_CONST, const,
629 [d_delete first parameter declared const])
631 AC_DEFINE(HAVE_D_DELETE_CONST, [],
632 [d_delete first parameter declared is not const])
634 EXTRA_KCFLAGS="$tmp_flags"
635 ]) # LC_D_DELETE_CONST
640 # 2.6.38 dcache_lock removed. rcu-walk committed.
642 AC_DEFUN([LC_DCACHE_LOCK], [
643 LB_CHECK_COMPILE([if 'dcache_lock' is exist],
645 #include <linux/dcache.h>
647 spin_lock(&dcache_lock);
649 AC_DEFINE(HAVE_DCACHE_LOCK, 1,
650 [dcache_lock is exist])
657 # 2.6.38 inode.i_rcu added.
659 AC_DEFUN([LC_INODE_I_RCU], [
660 LB_CHECK_COMPILE([if 'inode.i_rcu' exists],
662 #include <linux/fs.h>
665 struct rcu_head rcu = {};
668 AC_DEFINE(HAVE_INODE_I_RCU, 1,
669 [inode.i_rcu exists])
674 # LC_BLKDEV_GET_BY_DEV
676 # 2.6.38 export blkdev_get_by_dev
678 AC_DEFUN([LC_BLKDEV_GET_BY_DEV], [
679 LB_CHECK_EXPORT([blkdev_get_by_dev], [fs/block_dev.c],
680 [AC_DEFINE(HAVE_BLKDEV_GET_BY_DEV, 1,
681 [blkdev_get_by_dev is exported by the kernel])])
682 ]) # LC_BLKDEV_GET_BY_DEV
685 # LC_EXPORT_SIMPLE_SETATTR
687 # 2.6.38 export simple_setattr
689 AC_DEFUN([LC_EXPORT_SIMPLE_SETATTR], [
690 LB_CHECK_EXPORT([simple_setattr], [fs/libfs.c],
691 [AC_DEFINE(HAVE_SIMPLE_SETATTR, 1,
692 [simple_setattr is exported by the kernel])])
693 ]) # LC_EXPORT_SIMPLE_SETATTR
698 # 2.6.38 add struct blk_plug
700 AC_DEFUN([LC_HAVE_BLK_PLUG], [
701 LB_CHECK_COMPILE([if 'struct blk_plug' exists],
703 #include <linux/blkdev.h>
705 struct blk_plug plug;
707 blk_start_plug(&plug);
708 blk_finish_plug(&plug);
710 AC_DEFINE(HAVE_BLK_PLUG, 1,
711 [blk_plug struct exists])
713 ]) # LC_HAVE_BLK_PLUG
718 # truncate callback removed since 2.6.39
720 AC_DEFUN([LC_IOP_TRUNCATE], [
721 LB_CHECK_COMPILE([if 'inode_operations' has '.truncate' member function],
722 inode_ops_truncate, [
723 #include <linux/fs.h>
725 ((struct inode_operations *)0)->truncate(NULL);
727 AC_DEFINE(HAVE_INODEOPS_TRUNCATE, 1,
728 [inode_operations has .truncate member function])
733 # LC_HAVE_FSTYPE_MOUNT
735 # 2.6.39 replace get_sb with mount in struct file_system_type
737 AC_DEFUN([LC_HAVE_FSTYPE_MOUNT], [
738 LB_CHECK_COMPILE([if 'file_system_type' has 'mount' field],
739 file_system_type_mount, [
740 #include <linux/fs.h>
742 struct file_system_type fst;
743 void *i = (void *) fst.mount;
745 AC_DEFINE(HAVE_FSTYPE_MOUNT, 1,
746 [struct file_system_type has mount field])
748 ]) # LC_HAVE_FSTYPE_MOUNT
751 # LC_HAVE_FHANDLE_SYSCALLS
753 # 2.6.39 The open_by_handle_at() and name_to_handle_at() system calls were
754 # added to Linux kernel 2.6.39.
755 # Check if client supports these functions
757 AC_DEFUN([LC_HAVE_FHANDLE_SYSCALLS], [
758 LB_CHECK_CONFIG_IM([FHANDLE],[
759 AC_DEFINE(HAVE_FHANDLE_SYSCALLS, 1,
760 [kernel supports fhandles and related syscalls])
762 ]) # LC_HAVE_FHANDLE_SYSCALLS
765 # LC_HAVE_INODE_OWNER_OR_CAPABLE
767 # 2.6.39 renames is_owner_or_cap to inode_owner_or_capable
769 AC_DEFUN([LC_HAVE_INODE_OWNER_OR_CAPABLE], [
770 LB_CHECK_COMPILE([if 'inode_owner_or_capable' exist],
771 inode_owner_or_capable, [
772 #include <linux/fs.h>
774 inode_owner_or_capable(NULL);
776 AC_DEFINE(HAVE_INODE_OWNER_OR_CAPABLE, 1,
777 [inode_owner_or_capable exist])
779 ]) # LC_HAVE_INODE_OWNER_OR_CAPABLE
782 # LC_DIRTY_INODE_WITH_FLAG
784 # 3.0 dirty_inode() has a flag parameter
785 # see kernel commit aa38572954ade525817fe88c54faebf85e5a61c0
787 AC_DEFUN([LC_DIRTY_INODE_WITH_FLAG], [
788 LB_CHECK_COMPILE([if 'dirty_inode' super_operation takes flag],
789 dirty_inode_super_operation_flag, [
790 #include <linux/fs.h>
793 inode->i_sb->s_op->dirty_inode(NULL, 0);
795 AC_DEFINE(HAVE_DIRTY_INODE_HAS_FLAG, 1,
796 [dirty_inode super_operation takes flag])
798 ]) # LC_DIRTY_INODE_WITH_FLAG
803 # 3.0 introduced setns
805 AC_DEFUN([LC_SETNS], [
806 AC_CHECK_HEADERS([sched.h], [], [],
809 AC_CHECK_FUNCS([setns])
813 # LC_GENERIC_PERMISSION
815 # 2.6.38 generic_permission taken 4 parameters.
816 # in fact, it means rcu-walk aware permission bring.
818 # 3.1 generic_permission taken 2 parameters.
819 # see kernel commit 2830ba7f34ebb27c4e5b8b6ef408cd6d74860890
821 AC_DEFUN([LC_GENERIC_PERMISSION], [
822 LB_CHECK_COMPILE([if 'generic_permission' take 2 arguments],
823 generic_permission_2args, [
824 #include <linux/fs.h>
826 generic_permission(NULL, 0);
828 AC_DEFINE(HAVE_GENERIC_PERMISSION_2ARGS, 1,
829 [generic_permission taken 2 arguments])
831 LB_CHECK_COMPILE([if 'generic_permission' take 4 arguments],
832 generic_permission_4args, [
833 #include <linux/fs.h>
835 generic_permission(NULL, 0, 0, NULL);
837 AC_DEFINE(HAVE_GENERIC_PERMISSION_4ARGS, 1,
838 [generic_permission taken 4 arguments])
841 ]) # LC_GENERIC_PERMISSION
844 # LC_LM_XXX_LOCK_MANAGER_OPS
846 # 3.1 renames lock-manager ops(lock_manager_operations) from fl_xxx to lm_xxx
847 # see kernel commit 8fb47a4fbf858a164e973b8ea8ef5e83e61f2e50
849 AC_DEFUN([LC_LM_XXX_LOCK_MANAGER_OPS], [
850 LB_CHECK_COMPILE([if 'lock-manager' ops renamed to 'lm_xxx'],
851 lock_manager_ops_lm_xxx, [
852 #include <linux/fs.h>
854 struct lock_manager_operations lm_ops;
855 lm_ops.lm_compare_owner = NULL;
857 AC_DEFINE(HAVE_LM_XXX_LOCK_MANAGER_OPS, 1,
858 [lock-manager ops renamed to lm_xxx])
860 ]) # LC_LM_XXX_LOCK_MANAGER_OPS
865 # 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait
867 # see kernel commit bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3
869 AC_DEFUN([LC_INODE_DIO_WAIT], [
870 LB_CHECK_COMPILE([if 'inode->i_alloc_sem' is killed and use inode_dio_wait],
872 #include <linux/fs.h>
874 inode_dio_wait((struct inode *)0);
876 AC_DEFINE(HAVE_INODE_DIO_WAIT, 1,
877 [inode->i_alloc_sem is killed and use inode_dio_wait])
879 ]) # LC_INODE_DIO_WAIT
884 # 3.1 adds get_acl method to inode_operations to read ACL from disk.
885 # see kernel commit 4e34e719e457f2e031297175410fc0bd4016a085
887 AC_DEFUN([LC_IOP_GET_ACL], [
888 LB_CHECK_COMPILE([if 'inode_operations' has '.get_acl' member function],
890 #include <linux/fs.h>
892 struct inode_operations iop;
895 AC_DEFINE(HAVE_IOP_GET_ACL, 1,
896 [inode_operations has .get_acl member function])
901 # LC_FILE_LLSEEK_SIZE
903 # 3.1 introduced generic_file_llseek_size()
905 AC_DEFUN([LC_FILE_LLSEEK_SIZE], [
906 LB_CHECK_EXPORT([generic_file_llseek_size], [fs/read_write.c],
907 [AC_DEFINE(HAVE_FILE_LLSEEK_SIZE, 1,
908 [generic_file_llseek_size is exported by the kernel])])
909 ]) # LC_FILE_LLSEEK_SIZE
912 # LC_RADIX_EXCEPTION_ENTRY
913 # 3.1 adds radix_tree_exception_entry.
915 AC_DEFUN([LC_RADIX_EXCEPTION_ENTRY], [
916 LB_CHECK_COMPILE([radix_tree_exceptional_entry exist],
917 radix_tree_exceptional_entry, [
918 #include <linux/radix-tree.h>
920 radix_tree_exceptional_entry(NULL);
922 AC_DEFINE(HAVE_RADIX_EXCEPTION_ENTRY, 1,
923 [radix_tree_exceptional_entry exist])
925 ]) # LC_RADIX_EXCEPTION_ENTRY
928 # LC_HAVE_PROTECT_I_NLINK
930 # 3.2 protects inode->i_nlink from direct modification
931 # see kernel commit a78ef704a8dd430225955f0709b22d4a6ba21deb
932 # at the same time adds set_nlink(), so checks set_nlink() for it.
934 AC_DEFUN([LC_HAVE_PROTECT_I_NLINK], [
935 LB_CHECK_COMPILE([if 'inode->i_nlink' is protected from direct modification],
936 inode_i_nlink_protected, [
937 #include <linux/fs.h>
942 AC_DEFINE(HAVE_PROTECT_I_NLINK, 1,
943 [inode->i_nlink is protected from direct modification])
945 ]) # LC_HAVE_PROTECT_I_NLINK
948 # 2.6.39 security_inode_init_security takes a 'struct qstr' parameter
950 # 3.2 security_inode_init_security takes a callback to set xattrs
952 AC_DEFUN([LC_HAVE_SECURITY_IINITSEC], [
953 LB_CHECK_COMPILE([if security_inode_init_security takes a callback],
954 security_inode_init_security_callback, [
955 #include <linux/security.h>
957 security_inode_init_security(NULL, NULL, NULL, (const initxattrs)NULL, NULL);
959 AC_DEFINE(HAVE_SECURITY_IINITSEC_CALLBACK, 1,
960 [security_inode_init_security takes a callback to set xattrs])
962 LB_CHECK_COMPILE([if security_inode_init_security takes a 'struct qstr' parameter],
963 security_inode_init_security_qstr, [
964 #include <linux/security.h>
966 security_inode_init_security(NULL, NULL, (struct qstr *)NULL, NULL, NULL, NULL);
968 AC_DEFINE(HAVE_SECURITY_IINITSEC_QSTR, 1,
969 [security_inode_init_security takes a 'struct qstr' parameter])
972 ]) # LC_HAVE_SECURITY_IINITSEC
975 # LC_HAVE_MIGRATE_HEADER
977 # 3.3 introduces migrate_mode.h and migratepage has 4 args
979 AC_DEFUN([LC_HAVE_MIGRATE_HEADER], [
980 LB_CHECK_FILE([$LINUX/include/linux/migrate.h], [
981 AC_DEFINE(HAVE_MIGRATE_H, 1,
982 [kernel has include/linux/migrate.h])
984 LB_CHECK_FILE([$LINUX/include/linux/migrate_mode.h], [
985 AC_DEFINE(HAVE_MIGRATE_MODE_H, 1,
986 [kernel has include/linux/migrate_mode.h])
989 ]) # LC_HAVE_MIGRATE_HEADER
992 # LC_MIGRATEPAGE_4ARGS
994 AC_DEFUN([LC_MIGRATEPAGE_4ARGS], [
995 LB_CHECK_COMPILE([if 'address_space_operations.migratepage' has 4 args],
996 address_space_ops_migratepage_4args, [
997 #include <linux/fs.h>
998 #ifdef HAVE_MIGRATE_H
999 #include <linux/migrate.h>
1000 #elif defined(HAVE_MIGRATE_MODE_H)
1001 #include <linux/migrate_mode.h>
1004 struct address_space_operations aops;
1005 aops.migratepage(NULL, NULL, NULL, MIGRATE_ASYNC);
1007 AC_DEFINE(HAVE_MIGRATEPAGE_4ARGS, 1,
1008 [address_space_operations.migratepage has 4 args])
1010 ]) # LC_MIGRATEPAGE_4ARGS
1013 # LC_SUPEROPS_USE_DENTRY
1015 # 3.3 switchs super_operations to use dentry as parameter (but not vfsmount)
1016 # see kernel commit 34c80b1d93e6e20ca9dea0baf583a5b5510d92d4
1018 AC_DEFUN([LC_SUPEROPS_USE_DENTRY], [
1019 tmp_flags="$EXTRA_KCFLAGS"
1020 EXTRA_KCFLAGS="-Werror"
1021 LB_CHECK_COMPILE([if 'super_operations' use 'dentry' as parameter],
1023 #include <linux/fs.h>
1024 int show_options(struct seq_file *seq, struct dentry *root) {
1028 struct super_operations ops;
1029 ops.show_options = show_options;
1031 AC_DEFINE(HAVE_SUPEROPS_USE_DENTRY, 1,
1032 [super_operations use dentry as parameter])
1034 EXTRA_KCFLAGS="$tmp_flags"
1035 ]) # LC_SUPEROPS_USE_DENTRY
1038 # LC_INODEOPS_USE_UMODE_T
1040 # 3.3 switchs inode_operations to use umode_t as parameter (but not int)
1041 # see kernel commit 1a67aafb5f72a436ca044293309fa7e6351d6a35
1043 AC_DEFUN([LC_INODEOPS_USE_UMODE_T], [
1044 tmp_flags="$EXTRA_KCFLAGS"
1045 EXTRA_KCFLAGS="-Werror"
1046 LB_CHECK_COMPILE([if 'inode_operations' use 'umode_t' as parameter],
1047 inode_ops_umode_t, [
1048 #include <linux/fs.h>
1049 #include <linux/types.h>
1050 int my_mknod(struct inode *dir, struct dentry *dchild,
1051 umode_t mode, dev_t dev)
1056 struct inode_operations ops;
1057 ops.mknod = my_mknod;
1059 AC_DEFINE(HAVE_INODEOPS_USE_UMODE_T, 1,
1060 [inode_operations use umode_t as parameter])
1062 EXTRA_KCFLAGS="$tmp_flags"
1063 ]) # LC_INODEOPS_USE_UMODE_T
1066 # LC_KMAP_ATOMIC_HAS_1ARG
1068 # 3.4 kmap_atomic removes second argument
1069 # see kernel commit 1ec9c5ddc17aa398f05646abfcbaf315b544e62f
1071 AC_DEFUN([LC_KMAP_ATOMIC_HAS_1ARG], [
1072 LB_CHECK_COMPILE([if 'kmap_atomic' has only 1 argument],
1074 #include <linux/highmem.h>
1078 AC_DEFINE(HAVE_KMAP_ATOMIC_HAS_1ARG, 1,
1079 [have kmap_atomic has only 1 argument])
1081 ]) # LC_KMAP_ATOMIC_HAS_1ARG
1084 # LC_HAVE_D_MAKE_ROOT
1086 # 3.4 converts d_alloc_root to d_make_root
1087 # see kernel commit 32991ab305ace7017c62f8eecbe5eb36dc32e13b
1089 AC_DEFUN([LC_HAVE_D_MAKE_ROOT], [
1090 LB_CHECK_COMPILE([if have 'd_make_root'],
1092 #include <linux/fs.h>
1094 d_make_root((struct inode *)NULL);
1096 AC_DEFINE(HAVE_D_MAKE_ROOT, 1,
1099 ]) # LC_HAVE_D_MAKE_ROOT
1102 # LC_HAVE_CACHE_REGISTER
1104 # 3.4 cache_register/cache_unregister are removed
1105 # see kernel commit 2c5f846747526e2b83c5f1b8e69016be0e2e87c0
1106 # Note, since 2.6.37 cache_register_net/cache_unregister_net
1107 # are defined, but not exported.
1108 # 3.3 cache_register_net/cache_unregister_net are
1109 # exported and replacing cache_register/cache_unregister in 3.4
1111 AC_DEFUN([LC_HAVE_CACHE_REGISTER], [
1112 LB_CHECK_COMPILE([if have 'cache_register'],
1114 #include <linux/sunrpc/cache.h>
1116 cache_register(NULL);
1118 AC_DEFINE(HAVE_CACHE_REGISTER, 1,
1119 [have cache_register])
1121 ]) # LC_HAVE_CACHE_REGISTER
1124 # LC_HAVE_CLEAR_INODE
1126 # 3.5 renames end_writeback() back to clear_inode()...
1127 # see kernel commit dbd5768f87ff6fb0a4fe09c4d7b6c4a24de99430
1129 AC_DEFUN([LC_HAVE_CLEAR_INODE], [
1130 LB_CHECK_COMPILE([if have 'clear_inode'],
1132 #include <linux/fs.h>
1134 clear_inode((struct inode *)NULL);
1136 AC_DEFINE(HAVE_CLEAR_INODE, 1,
1139 ]) # LC_HAVE_CLEAR_INODE
1142 # LC_HAVE_ENCODE_FH_PARENT
1144 # 3.5 encode_fh has parent inode passed in directly
1145 # see kernel commit b0b0382b
1147 AC_DEFUN([LC_HAVE_ENCODE_FH_PARENT], [
1148 tmp_flags="$EXTRA_KCFLAGS"
1149 EXTRA_KCFLAGS="-Werror"
1150 LB_CHECK_COMPILE([if 'encode_fh' have parent inode as parameter],
1151 encode_fh_parent_inode, [
1152 #include <linux/exportfs.h>
1153 #include <linux/fs.h>
1154 #include <linux/types.h>
1155 int ll_encode_fh(struct inode *i, __u32 *a, int *b, struct inode *p)
1160 struct export_operations exp_op;
1161 exp_op.encode_fh = ll_encode_fh;
1163 AC_DEFINE(HAVE_ENCODE_FH_PARENT, 1,
1164 [have parent inode as parameter])
1166 EXTRA_KCFLAGS="$tmp_flags"
1167 ]) # LC_HAVE_ENCODE_FH_PARENT
1170 # LC_FILE_LLSEEK_SIZE_5ARG
1172 # 3.5 has generic_file_llseek_size with 5 args
1174 AC_DEFUN([LC_FILE_LLSEEK_SIZE_5ARG], [
1175 LB_CHECK_COMPILE([if Linux kernel has 'generic_file_llseek_size' with 5 args],
1176 generic_file_llseek_size_5args, [
1177 #include <linux/fs.h>
1179 generic_file_llseek_size(NULL, 0, 0, 0, 0);
1181 AC_DEFINE(HAVE_FILE_LLSEEK_SIZE_5ARGS, 1,
1182 [kernel has generic_file_llseek_size with 5 args])
1184 ]) # LC_FILE_LLSEEK_SIZE_5ARG
1187 # LC_LLITE_DATA_IS_LIST
1189 # 3.6 switch i_dentry/d_alias from list to hlist
1191 # In the upstream kernels d_alias first changes
1192 # to a hlist and then in later version, 3.11, gets
1193 # moved to the union d_u. Due to some distros having
1194 # d_alias in the d_u union as a struct list, which
1195 # has never existed upstream stream, we can't test
1196 # if d_alias is a list or hlist directly. If ever
1197 # i_dentry and d_alias even up different combos then
1198 # the build will fail. In that case then we will need
1199 # to separate out the i_dentry and d_alias test below.
1201 AC_DEFUN([LC_DATA_FOR_LLITE_IS_LIST], [
1202 tmp_flags="$EXTRA_KCFLAGS"
1203 EXTRA_KCFLAGS="-Werror"
1204 LB_CHECK_COMPILE([if 'i_dentry/d_alias' uses 'list'],
1205 i_dentry_d_alias_list, [
1206 #include <linux/fs.h>
1209 INIT_LIST_HEAD(&inode.i_dentry);
1211 AC_DEFINE(DATA_FOR_LLITE_IS_LIST, 1,
1212 [both i_dentry/d_alias uses list])
1214 EXTRA_KCFLAGS="$tmp_flags"
1215 ]) # LC_DATA_FOR_LLITE_IS_LIST
1218 # LC_DENTRY_OPEN_USE_PATH
1220 # 3.6 dentry_open uses struct path as first argument
1221 # see kernel commit 765927b2
1223 AC_DEFUN([LC_DENTRY_OPEN_USE_PATH], [
1224 tmp_flags="$EXTRA_KCFLAGS"
1225 EXTRA_KCFLAGS="-Werror"
1226 LB_CHECK_COMPILE([if 'dentry_open' uses 'struct path' as first argument],
1228 #include <linux/fs.h>
1229 #include <linux/path.h>
1232 dentry_open(&path, 0, NULL);
1234 AC_DEFINE(HAVE_DENTRY_OPEN_USE_PATH, 1,
1235 [dentry_open uses struct path as first argument])
1237 EXTRA_KCFLAGS="$tmp_flags"
1238 ]) # LC_DENTRY_OPEN_USE_PATH
1241 # LC_HAVE_IOP_ATOMIC_OPEN
1243 # 3.6 vfs adds iop->atomic_open
1245 AC_DEFUN([LC_HAVE_IOP_ATOMIC_OPEN], [
1246 LB_CHECK_COMPILE([if 'iop' has 'atomic_open'],
1247 inode_ops_atomic_open, [
1248 #include <linux/fs.h>
1250 struct inode_operations iop;
1251 iop.atomic_open = NULL;
1253 AC_DEFINE(HAVE_IOP_ATOMIC_OPEN, 1,
1254 [have iop atomic_open])
1256 ]) # LC_HAVE_IOP_ATOMIC_OPEN
1259 # LC_HAVE_SB_START_WRITE
1261 # RHEL6 2.6.32, 3.6 or newer support wrapped FS freeze functions
1263 AC_DEFUN([LC_HAVE_SB_START_WRITE], [
1264 LB_CHECK_COMPILE([if kernel supports wrapped FS freeze functions],
1266 #include <linux/fs.h>
1268 sb_start_write(NULL);
1270 AC_DEFINE(HAVE_SB_START_WRITE, 1,
1271 [kernel supports wrapped FS freeze functions])
1273 ]) # LC_HAVE_SB_START_WRITE
1276 # LC_HAVE_POSIXACL_USER_NS
1278 # 3.7 posix_acl_{to,from}_xattr take struct user_namespace
1280 AC_DEFUN([LC_HAVE_POSIXACL_USER_NS], [
1281 LB_CHECK_COMPILE([if 'posix_acl_to_xattr' takes 'struct user_namespace'],
1282 posix_acl_to_xattr_user_namespace, [
1283 #include <linux/fs.h>
1284 #include <linux/posix_acl_xattr.h>
1286 posix_acl_to_xattr((struct user_namespace *)NULL, NULL, NULL, 0);
1288 AC_DEFINE(HAVE_POSIXACL_USER_NS, 1,
1289 [posix_acl_to_xattr takes struct user_namespace])
1291 ]) # LC_HAVE_POSIXACL_USER_NS
1294 # LC_HAVE_FILE_F_INODE
1296 # 3.8 struct file has new member f_inode
1298 AC_DEFUN([LC_HAVE_FILE_F_INODE], [
1299 LB_CHECK_COMPILE([if 'struct file' has member 'f_inode'],
1301 #include <linux/fs.h>
1303 ((struct file *)0)->f_inode = NULL;
1305 AC_DEFINE(HAVE_FILE_F_INODE, 1,
1306 [struct file has member f_inode])
1308 ]) # LC_HAVE_FILE_F_INODE
1311 # LC_HAVE_FILE_INODE
1313 # 3.8 has introduced inline function file_inode
1315 AC_DEFUN([LC_HAVE_FILE_INODE], [
1316 LB_CHECK_COMPILE([if file_inode() exists],
1318 #include <linux/fs.h>
1322 AC_DEFINE(HAVE_FILE_INODE, 1,
1323 [file_inode() has been defined])
1325 ]) # LC_HAVE_FILE_INODE
1328 # LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
1330 AC_DEFUN([LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS], [
1331 LB_CHECK_COMPILE([if 'sunrpc_cache_pipe_upcall' takes 3 args],
1332 sunrpc_cache_pipe_upcall_3args, [
1333 #include <linux/sunrpc/cache.h>
1335 sunrpc_cache_pipe_upcall(NULL, NULL, NULL);
1337 AC_DEFINE(HAVE_SUNRPC_UPCALL_HAS_3ARGS, 1,
1338 [sunrpc_cache_pipe_upcall takes 3 args])
1340 ]) # LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
1343 # LC_HAVE_HLIST_FOR_EACH_3ARG
1345 # 3.9 uses hlist_for_each_entry with 3 args
1346 # b67bfe0d42cac56c512dd5da4b1b347a23f4b70a
1348 AC_DEFUN([LC_HAVE_HLIST_FOR_EACH_3ARG], [
1349 LB_CHECK_COMPILE([if 'hlist_for_each_entry' has 3 args],
1350 hlist_for_each_entry_3args, [
1351 #include <linux/list.h>
1352 #include <linux/fs.h>
1354 struct hlist_head *head = NULL;
1355 struct inode *inode;
1357 hlist_for_each_entry(inode, head, i_hash) {
1361 AC_DEFINE(HAVE_HLIST_FOR_EACH_3ARG, 1,
1362 [hlist_for_each_entry has 3 args])
1364 ]) # LC_HAVE_HLIST_FOR_EACH_3ARG
1367 # LC_HAVE_BIO_END_SECTOR
1369 # 3.9 introduces bio_end_sector macro
1370 # f73a1c7d117d07a96d89475066188a2b79e53c48
1372 AC_DEFUN([LC_HAVE_BIO_END_SECTOR], [
1373 LB_CHECK_COMPILE([if 'bio_end_sector' is defined],
1375 #include <linux/bio.h>
1379 bio_end_sector(&bio);
1381 AC_DEFINE(HAVE_BIO_END_SECTOR, 1,
1382 [bio_end_sector is defined])
1384 ]) # LC_HAVE_BIO_END_SECTOR
1387 # 3.9 created is_sxid
1389 AC_DEFUN([LC_HAVE_IS_SXID], [
1390 LB_CHECK_COMPILE([if 'is_sxid' is defined],
1392 #include <linux/fs.h>
1396 is_sxid(inode.i_mode);
1398 AC_DEFINE(HAVE_IS_SXID, 1, [is_sxid is defined])
1400 ]) # LC_HAVE_IS_SXID
1403 # LC_HAVE_REMOVE_PROC_SUBTREE
1405 # 3.10 introduced remove_proc_subtree
1407 AC_DEFUN([LC_HAVE_REMOVE_PROC_SUBTREE], [
1408 LB_CHECK_COMPILE([if 'remove_proc_subtree' is defined],
1409 remove_proc_subtree, [
1410 #include <linux/proc_fs.h>
1412 remove_proc_subtree(NULL, NULL);
1414 AC_DEFINE(HAVE_REMOVE_PROC_SUBTREE, 1,
1415 [remove_proc_subtree is defined])
1417 ]) # LC_HAVE_REMOVE_PROC_SUBTREE
1420 # LC_HAVE_PROC_REMOVE
1422 # 3.10 introduced proc_remove
1424 AC_DEFUN([LC_HAVE_PROC_REMOVE], [
1425 LB_CHECK_COMPILE([if 'proc_remove' is defined],
1427 #include <linux/proc_fs.h>
1431 AC_DEFINE(HAVE_PROC_REMOVE, 1,
1432 [proc_remove is defined])
1434 ]) # LC_HAVE_PROC_REMOVE
1436 AC_DEFUN([LC_HAVE_PROJECT_QUOTA], [
1437 LB_CHECK_COMPILE([if get_projid exists],
1439 #include <linux/quota.h>
1441 struct dquot_operations ops;
1443 ops.get_projid(NULL, NULL);
1445 AC_DEFINE(HAVE_PROJECT_QUOTA, 1,
1446 [get_projid function exists])
1448 ]) # LC_HAVE_PROJECT_QUOTA
1452 # LC_HAVE_SECURITY_DENTRY_INIT_SECURITY
1454 # 3.10 introduced security_dentry_init_security()
1456 AC_DEFUN([LC_HAVE_SECURITY_DENTRY_INIT_SECURITY], [
1457 LB_CHECK_COMPILE([if 'security_dentry_init_security' is defined],
1458 security_dentry_init_security, [
1459 #include <linux/security.h>
1461 security_dentry_init_security(NULL, 0, NULL, NULL, NULL);
1463 AC_DEFINE(HAVE_SECURITY_DENTRY_INIT_SECURITY, 1,
1464 [security_dentry_init_security' is defined])
1466 ]) # LC_HAVE_SECURITY_DENTRY_INIT_SECURITY
1469 # LC_INVALIDATE_RANGE
1471 # 3.11 invalidatepage requires the length of the range to invalidate
1473 AC_DEFUN([LC_INVALIDATE_RANGE], [
1474 LB_CHECK_COMPILE([if 'address_space_operations.invalidatepage' requires 3 arguments],
1475 address_space_ops_invalidatepage_3args, [
1476 #include <linux/fs.h>
1478 struct address_space_operations a_ops;
1479 a_ops.invalidatepage(NULL, 0, 0);
1481 AC_DEFINE(HAVE_INVALIDATE_RANGE, 1,
1482 [address_space_operations.invalidatepage needs 3 arguments])
1484 ]) # LC_INVALIDATE_RANGE
1487 # LC_HAVE_DIR_CONTEXT
1489 # 3.11 readdir now takes the new struct dir_context
1491 AC_DEFUN([LC_HAVE_DIR_CONTEXT], [
1492 LB_CHECK_COMPILE([if 'dir_context' exist],
1494 #include <linux/fs.h>
1496 struct dir_context ctx;
1499 AC_DEFINE(HAVE_DIR_CONTEXT, 1,
1500 [dir_context exist])
1502 ]) # LC_HAVE_DIR_CONTEXT
1505 # LC_D_COMPARE_5ARGS
1507 # 3.11 dentry_operations.d_compare() taken 5 arguments.
1509 AC_DEFUN([LC_D_COMPARE_5ARGS], [
1510 LB_CHECK_COMPILE([if 'd_compare' taken 5 arguments],
1512 #include <linux/dcache.h>
1514 ((struct dentry_operations*)0)->d_compare(NULL,NULL,0,NULL,NULL);
1516 AC_DEFINE(HAVE_D_COMPARE_5ARGS, 1,
1517 [d_compare need 5 arguments])
1519 ]) # LC_D_COMPARE_5ARGS
1524 # 3.11 need to access d_count to get dentry reference count
1526 AC_DEFUN([LC_HAVE_DCOUNT], [
1527 LB_CHECK_COMPILE([if 'd_count' exist],
1529 #include <linux/dcache.h>
1534 AC_DEFINE(HAVE_D_COUNT, 1,
1540 # LC_PID_NS_FOR_CHILDREN
1542 # 3.11 replaces pid_ns by pid_ns_for_children in struct nsproxy
1544 AC_DEFUN([LC_PID_NS_FOR_CHILDREN], [
1545 LB_CHECK_COMPILE([if 'struct nsproxy' has 'pid_ns_for_children'],
1546 pid_ns_for_children, [
1547 #include <linux/nsproxy.h>
1550 ns.pid_ns_for_children = NULL;
1552 AC_DEFINE(HAVE_PID_NS_FOR_CHILDREN, 1,
1553 ['struct nsproxy' has 'pid_ns_for_children'])
1555 ]) # LC_PID_NS_FOR_CHILDREN
1558 # LC_OLDSIZE_TRUNCATE_PAGECACHE
1560 # 3.12 truncate_pagecache without oldsize parameter
1562 AC_DEFUN([LC_OLDSIZE_TRUNCATE_PAGECACHE], [
1563 LB_CHECK_COMPILE([if 'truncate_pagecache' with 'old_size' parameter],
1564 truncate_pagecache_old_size, [
1565 #include <linux/mm.h>
1567 truncate_pagecache(NULL, 0, 0);
1569 AC_DEFINE(HAVE_OLDSIZE_TRUNCATE_PAGECACHE, 1,
1572 ]) # LC_OLDSIZE_TRUNCATE_PAGECACHE
1575 # LC_HAVE_DENTRY_D_U_D_ALIAS
1577 # 3.11 kernel moved d_alias to the union d_u in struct dentry
1579 # Some distros move d_alias to d_u but it is still a struct list
1581 AC_DEFUN([LC_HAVE_DENTRY_D_U_D_ALIAS], [
1582 AS_IF([test "x$lb_cv_compile_i_dentry_d_alias_list" = xyes], [
1583 LB_CHECK_COMPILE([if list 'dentry.d_u.d_alias' exist],
1585 #include <linux/list.h>
1586 #include <linux/dcache.h>
1589 INIT_LIST_HEAD(&de.d_u.d_alias);
1591 AC_DEFINE(HAVE_DENTRY_D_U_D_ALIAS, 1,
1592 [list dentry.d_u.d_alias exist])
1595 LB_CHECK_COMPILE([if hlist 'dentry.d_u.d_alias' exist],
1597 #include <linux/list.h>
1598 #include <linux/dcache.h>
1601 INIT_HLIST_NODE(&de.d_u.d_alias);
1603 AC_DEFINE(HAVE_DENTRY_D_U_D_ALIAS, 1,
1604 [hlist dentry.d_u.d_alias exist])
1607 ]) # LC_HAVE_DENTRY_D_U_D_ALIAS
1610 # LC_HAVE_DENTRY_D_CHILD
1612 # 3.11 kernel d_child has been moved out of the union d_u
1615 AC_DEFUN([LC_HAVE_DENTRY_D_CHILD], [
1616 LB_CHECK_COMPILE([if 'dentry.d_child' exist],
1618 #include <linux/list.h>
1619 #include <linux/dcache.h>
1622 INIT_LIST_HEAD(&de.d_child);
1624 AC_DEFINE(HAVE_DENTRY_D_CHILD, 1,
1625 [dentry.d_child exist])
1627 ]) # LC_HAVE_DENTRY_D_CHILD
1632 # 3.12 ki_left removed from struct kiocb
1634 AC_DEFUN([LC_KIOCB_KI_LEFT], [
1635 LB_CHECK_COMPILE([if 'struct kiocb' with 'ki_left' member],
1637 #include <linux/aio.h>
1639 ((struct kiocb*)0)->ki_left = 0;
1641 AC_DEFINE(HAVE_KIOCB_KI_LEFT, 1,
1644 ]) # LC_KIOCB_KI_LEFT
1647 # LC_VFS_RENAME_5ARGS
1649 # 3.13 has vfs_rename with 5 args
1651 AC_DEFUN([LC_VFS_RENAME_5ARGS], [
1652 LB_CHECK_COMPILE([if Linux kernel has 'vfs_rename' with 5 args],
1654 #include <linux/fs.h>
1656 vfs_rename(NULL, NULL, NULL, NULL, NULL);
1658 AC_DEFINE(HAVE_VFS_RENAME_5ARGS, 1,
1659 [kernel has vfs_rename with 5 args])
1661 ]) # LC_VFS_RENAME_5ARGS
1664 # LC_VFS_UNLINK_3ARGS
1666 # 3.13 has vfs_unlink with 3 args
1668 AC_DEFUN([LC_VFS_UNLINK_3ARGS], [
1669 LB_CHECK_COMPILE([if Linux kernel has 'vfs_unlink' with 3 args],
1671 #include <linux/fs.h>
1673 vfs_unlink(NULL, NULL, NULL);
1675 AC_DEFINE(HAVE_VFS_UNLINK_3ARGS, 1,
1676 [kernel has vfs_unlink with 3 args])
1678 ]) # LC_VFS_UNLINK_3ARGS
1683 # 3.14 move some of its data in struct bio into the new
1686 AC_DEFUN([LC_HAVE_BVEC_ITER], [
1687 LB_CHECK_COMPILE([if Linux kernel has struct bvec_iter],
1689 #include <linux/bio.h>
1691 struct bvec_iter iter;
1692 iter.bi_bvec_done = 0;
1694 AC_DEFINE(HAVE_BVEC_ITER, 1,
1695 [kernel has struct bvec_iter])
1697 ]) # LC_HAVE_BVEC_ITER
1702 # 3.14 adds set_acl method to inode_operations
1703 # see kernel commit 893d46e443346370cd4ea81d9d35f72952c62a37
1705 AC_DEFUN([LC_IOP_SET_ACL], [
1706 LB_CHECK_COMPILE([if 'inode_operations' has '.set_acl' member function],
1707 inode_ops_set_acl, [
1708 #include <linux/fs.h>
1710 struct inode_operations iop;
1713 AC_DEFINE(HAVE_IOP_SET_ACL, 1,
1714 [inode_operations has .set_acl member function])
1721 # 4.4 redefined bi_cnt as __bi_cnt
1723 AC_DEFUN([LC_HAVE_BI_CNT], [
1724 LB_CHECK_COMPILE([if Linux kernel has bi_cnt in struct bio],
1726 #include <asm/atomic.h>
1727 #include <linux/bio.h>
1731 cnt = atomic_read(&bio.bi_cnt);
1733 AC_DEFINE(HAVE_BI_CNT, 1,
1734 [struct bio has bi_cnt])
1741 # 4.4 redefined bi_rw as bi_opf
1743 AC_DEFUN([LC_HAVE_BI_RW], [
1744 LB_CHECK_COMPILE([if Linux kernel has bi_rw in struct bio],
1746 #include <linux/bio.h>
1751 AC_DEFINE(HAVE_BI_RW, 1,
1752 [struct bio has bi_rw])
1757 # LC_HAVE_SUBMIT_BIO_2ARGS
1759 # 4.4 removed an argument from submit_bio
1761 AC_DEFUN([LC_HAVE_SUBMIT_BIO_2ARGS], [
1762 LB_CHECK_COMPILE([if submit_bio takes two arguments],
1763 have_submit_bio_2args, [
1764 #include <linux/bio.h>
1767 submit_bio(READ, &bio);
1769 AC_DEFINE(HAVE_SUBMIT_BIO_2ARGS, 1,
1770 [submit_bio takes two arguments])
1772 ]) # LC_HAVE_SUBMIT_BIO_2_ARGS
1775 # LC_HAVE_CLEAN_BDEV_ALIASES
1777 # 4.4 unmap_underlying_metadata was replaced by clean_bdev_aliases
1779 AC_DEFUN([LC_HAVE_CLEAN_BDEV_ALIASES], [
1780 LB_CHECK_COMPILE([if kernel has clean_bdev_aliases],
1781 have_clean_bdev_aliases, [
1782 #include <linux/buffer_head.h>
1784 struct block_device bdev;
1785 clean_bdev_aliases(&bdev,1,1);
1787 AC_DEFINE(HAVE_CLEAN_BDEV_ALIASES, 1,
1788 [kernel has clean_bdev_aliases])
1790 ]) # LC_HAVE_CLEAN_BDEV_ALIASES
1793 # LC_HAVE_TRUNCATE_IPAGE_FINAL
1795 # 3.14 bring truncate_inode_pages_final for evict_inode
1797 AC_DEFUN([LC_HAVE_TRUNCATE_IPAGES_FINAL], [
1798 LB_CHECK_COMPILE([if Linux kernel has truncate_inode_pages_final],
1799 truncate_ipages_final, [
1800 #include <linux/mm.h>
1802 truncate_inode_pages_final(NULL);
1804 AC_DEFINE(HAVE_TRUNCATE_INODE_PAGES_FINAL, 1,
1805 [kernel has truncate_inode_pages_final])
1807 ]) # LC_HAVE_TRUNCATE_IPAGES_FINAL
1810 # LC_IOPS_RENAME_WITH_FLAGS
1812 # 3.14 has inode_operations->rename with 5 args
1813 # commit 520c8b16505236fc82daa352e6c5e73cd9870cff
1815 AC_DEFUN([LC_IOPS_RENAME_WITH_FLAGS], [
1816 LB_CHECK_COMPILE([if 'inode_operations->rename' taken flags as argument],
1817 iops_rename_with_flags, [
1818 #include <linux/fs.h>
1820 struct inode *i1 = NULL, *i2 = NULL;
1821 struct dentry *d1 = NULL, *d2 = NULL;
1823 rc = ((struct inode_operations *)0)->rename(i1, d1, i2, d2, 0);
1825 AC_DEFINE(HAVE_IOPS_RENAME_WITH_FLAGS, 1,
1826 [inode_operations->rename need flags as argument])
1828 ]) # LC_IOPS_RENAME_WITH_FLAGS
1831 # LC_VFS_RENAME_6ARGS
1833 # 3.15 has vfs_rename with 6 args
1835 AC_DEFUN([LC_VFS_RENAME_6ARGS], [
1836 LB_CHECK_COMPILE([if Linux kernel has 'vfs_rename' with 6 args],
1838 #include <linux/fs.h>
1840 vfs_rename(NULL, NULL, NULL, NULL, NULL, NULL);
1842 AC_DEFINE(HAVE_VFS_RENAME_6ARGS, 1,
1843 [kernel has vfs_rename with 6 args])
1845 ]) # LC_VFS_RENAME_6ARGS
1848 # LC_DIRECTIO_USE_ITER
1850 # 3.16 kernel changes direct IO to use iov_iter
1852 AC_DEFUN([LC_DIRECTIO_USE_ITER], [
1853 LB_CHECK_COMPILE([if direct IO uses iov_iter],
1855 #include <linux/fs.h>
1857 struct address_space_operations ops;
1858 struct iov_iter *iter = NULL;
1861 ops.direct_IO(0, NULL, iter, offset);
1863 AC_DEFINE(HAVE_DIRECTIO_ITER, 1,
1864 [direct IO uses iov_iter])
1866 ]) # LC_DIRECTIO_USE_ITER
1869 # LC_HAVE_IOV_ITER_INIT_DIRECTION
1872 # 3.16 linux commit 71d8e532b1549a478e6a6a8a44f309d050294d00
1873 # changed iov_iter_init api to start accepting a tag
1874 # that defines if its a read or write operation
1876 AC_DEFUN([LC_HAVE_IOV_ITER_INIT_DIRECTION], [
1877 tmp_flags="$EXTRA_KCFLAGS"
1878 EXTRA_KCFLAGS="-Werror"
1879 LB_CHECK_COMPILE([if 'iov_iter_init' takes a tag],
1881 #include <linux/uio.h>
1882 #include <linux/fs.h>
1884 const struct iovec *iov = NULL;
1886 iov_iter_init(NULL, READ, iov, 1, 0);
1888 AC_DEFINE(HAVE_IOV_ITER_INIT_DIRECTION, 1,
1889 [iov_iter_init handles directional tag])
1891 EXTRA_KCFLAGS="$tmp_flags"
1892 ]) # LC_HAVE_IOV_ITER_INIT_DIRECTION
1895 # LC_HAVE_IOV_ITER_TRUNCATE
1898 # 3.16 introduces a new API iov_iter_truncate()
1900 AC_DEFUN([LC_HAVE_IOV_ITER_TRUNCATE], [
1901 tmp_flags="$EXTRA_KCFLAGS"
1902 EXTRA_KCFLAGS="-Werror"
1903 LB_CHECK_COMPILE([if 'iov_iter_truncate' exists ],
1905 #include <linux/uio.h>
1906 #include <linux/fs.h>
1908 struct iov_iter *i = NULL;
1910 iov_iter_truncate(i, 0);
1912 AC_DEFINE(HAVE_IOV_ITER_TRUNCATE, 1, [iov_iter_truncate exists])
1914 EXTRA_KCFLAGS="$tmp_flags"
1915 ]) # LC_HAVE_IOV_ITER_TRUNCATE
1918 # LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
1920 # 3.16 introduces [read|write]_iter to struct file_operations
1922 AC_DEFUN([LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER], [
1923 LB_CHECK_COMPILE([if 'file_operations.[read|write]_iter' exist],
1924 file_function_iter, [
1925 #include <linux/fs.h>
1927 ((struct file_operations *)NULL)->read_iter(NULL, NULL);
1928 ((struct file_operations *)NULL)->write_iter(NULL, NULL);
1930 AC_DEFINE(HAVE_FILE_OPERATIONS_READ_WRITE_ITER, 1,
1931 [file_operations.[read|write]_iter functions exist])
1933 ]) # LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
1938 # 3.17 replaces key_type::match with match_preparse
1939 # and has new struct key_match_data
1941 AC_DEFUN([LC_KEY_MATCH_DATA], [
1942 LB_CHECK_COMPILE([if struct key_match field exist],
1944 #include <linux/key-type.h>
1946 struct key_match_data data;
1948 AC_DEFINE(HAVE_KEY_MATCH_DATA, 1,
1949 [struct key_match_data exist])
1951 ]) # LC_KEY_MATCH_DATA
1954 # LC_NFS_FILLDIR_USE_CTX
1956 # 3.18 kernel moved from void cookie to struct dir_context
1958 AC_DEFUN([LC_NFS_FILLDIR_USE_CTX], [
1959 tmp_flags="$EXTRA_KCFLAGS"
1960 EXTRA_KCFLAGS="-Werror"
1961 LB_CHECK_COMPILE([if filldir_t uses struct dir_context],
1963 #include <linux/fs.h>
1965 int filldir(struct dir_context *ctx, const char* name,
1966 int i, loff_t off, u64 tmp, unsigned temp)
1971 struct dir_context ctx = {
1975 ctx.actor(NULL, "test", 0, (loff_t) 0, 0, 0);
1977 AC_DEFINE(HAVE_FILLDIR_USE_CTX, 1,
1978 [filldir_t needs struct dir_context as argument])
1980 EXTRA_KCFLAGS="$tmp_flags"
1981 ]) # LC_NFS_FILLDIR_USE_CTX
1984 # LC_PERCPU_COUNTER_INIT
1986 # 3.18 For kernels 3.18 and after percpu_counter_init starts
1987 # to pass a GFP_* memory allocation flag for internal
1988 # memory allocation purposes.
1990 AC_DEFUN([LC_PERCPU_COUNTER_INIT], [
1991 LB_CHECK_COMPILE([if percpu_counter_init uses GFP_* flag as argument],
1992 percpu_counter_init, [
1993 #include <linux/percpu_counter.h>
1995 percpu_counter_init(NULL, 0, GFP_KERNEL);
1997 AC_DEFINE(HAVE_PERCPU_COUNTER_INIT_GFP_FLAG, 1,
1998 [percpu_counter_init uses GFP_* flag])
2000 ]) # LC_PERCPU_COUNTER_INIT
2003 # LC_KIOCB_HAS_NBYTES
2005 # 3.19 kernel removed ki_nbytes from struct kiocb
2007 AC_DEFUN([LC_KIOCB_HAS_NBYTES], [
2008 LB_CHECK_COMPILE([if struct kiocb has ki_nbytes field],
2010 #include <linux/fs.h>
2016 AC_DEFINE(HAVE_KI_NBYTES, 1, [ki_nbytes field exist])
2018 ]) # LC_KIOCB_HAS_NBYTES
2021 # LC_HAVE_DQUOT_QC_DQBLK
2023 # 3.19 has quotactl_ops->[sg]et_dqblk that take struct kqid and qc_dqblk
2024 # Added in commit 14bf61ffe
2026 AC_DEFUN([LC_HAVE_DQUOT_QC_DQBLK], [
2027 tmp_flags="$EXTRA_KCFLAGS"
2028 EXTRA_KCFLAGS="-Werror"
2029 LB_CHECK_COMPILE([if 'quotactl_ops.set_dqblk' takes struct qc_dqblk],
2031 #include <linux/fs.h>
2032 #include <linux/quota.h>
2034 ((struct quotactl_ops *)0)->set_dqblk(NULL, *((struct kqid*)0), (struct qc_dqblk*)0);
2036 AC_DEFINE(HAVE_DQUOT_QC_DQBLK, 1,
2037 [quotactl_ops.set_dqblk takes struct qc_dqblk])
2038 AC_DEFINE(HAVE_DQUOT_KQID, 1,
2039 [quotactl_ops.set_dqblk takes struct kqid])
2041 EXTRA_KCFLAGS="$tmp_flags"
2042 ]) # LC_HAVE_DQUOT_QC_DQBLK
2045 # LC_BACKING_DEV_INFO_REMOVAL
2047 # 3.20 kernel removed backing_dev_info from address_space
2049 AC_DEFUN([LC_BACKING_DEV_INFO_REMOVAL], [
2050 LB_CHECK_COMPILE([if struct address_space has backing_dev_info],
2052 #include <linux/fs.h>
2054 struct address_space mapping;
2056 mapping.backing_dev_info = NULL;
2058 AC_DEFINE(HAVE_BACKING_DEV_INFO, 1, [backing_dev_info exist])
2060 ]) # LC_BACKING_DEV_INFO_REMOVAL
2063 # LC_HAVE_BDI_CAP_MAP_COPY
2065 # 3.20 removed mmap handling for backing devices since
2066 # it breaks on non-MMU systems. See kernel commit
2067 # b4caecd48005fbed3949dde6c1cb233142fd69e9
2069 AC_DEFUN([LC_HAVE_BDI_CAP_MAP_COPY], [
2070 LB_CHECK_COMPILE([if have 'BDI_CAP_MAP_COPY'],
2072 #include <linux/backing-dev.h>
2074 struct backing_dev_info info;
2076 info.capabilities = BDI_CAP_MAP_COPY;
2078 AC_DEFINE(HAVE_BDI_CAP_MAP_COPY, 1,
2079 [BDI_CAP_MAP_COPY exist])
2081 ]) # LC_HAVE_BDI_CAP_MAP_COPY
2084 # LC_CANCEL_DIRTY_PAGE
2086 # 4.0.0 kernel removed cancel_dirty_page
2088 AC_DEFUN([LC_CANCEL_DIRTY_PAGE], [
2089 LB_CHECK_COMPILE([if cancel_dirty_page still exist],
2090 cancel_dirty_page, [
2091 #include <linux/mm.h>
2093 cancel_dirty_page(NULL, PAGE_SIZE);
2095 AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
2096 [cancel_dirty_page is still available])
2098 ]) # LC_CANCEL_DIRTY_PAGE
2103 # 4.1 kernel has iov_iter_rw
2105 AC_DEFUN([LC_IOV_ITER_RW], [
2106 LB_CHECK_COMPILE([if iov_iter_rw exist],
2108 #include <linux/fs.h>
2109 #include <linux/uio.h>
2111 struct iov_iter *iter = NULL;
2115 AC_DEFINE(HAVE_IOV_ITER_RW, 1,
2116 [iov_iter_rw exist])
2121 # LC_HAVE_SYNC_READ_WRITE
2123 # 4.1 new_sync_[read|write] no longer exported
2125 AC_DEFUN([LC_HAVE_SYNC_READ_WRITE], [
2126 LB_CHECK_EXPORT([new_sync_read], [fs/read_write.c],
2127 [AC_DEFINE(HAVE_SYNC_READ_WRITE, 1,
2128 [new_sync_[read|write] is exported by the kernel])])
2129 ]) # LC_HAVE_SYNC_READ_WRITE
2132 # LC_NEW_CANCEL_DIRTY_PAGE
2134 # 4.2 kernel has new cancel_dirty_page
2136 AC_DEFUN([LC_NEW_CANCEL_DIRTY_PAGE], [
2137 LB_CHECK_COMPILE([if cancel_dirty_page with one argument exist],
2138 new_cancel_dirty_page, [
2139 #include <linux/mm.h>
2141 cancel_dirty_page(NULL);
2143 AC_DEFINE(HAVE_NEW_CANCEL_DIRTY_PAGE, 1,
2144 [cancel_dirty_page with one arguement is available])
2146 ]) # LC_NEW_CANCEL_DIRTY_PAGE
2149 # LC_SYMLINK_OPS_USE_NAMEIDATA
2151 # For the 4.2+ kernels the file system internal symlink api no
2152 # longer uses struct nameidata as a argument
2154 AC_DEFUN([LC_SYMLINK_OPS_USE_NAMEIDATA], [
2155 LB_CHECK_COMPILE([if symlink inode operations have struct nameidata argument],
2156 symlink_use_nameidata, [
2157 #include <linux/namei.h>
2158 #include <linux/fs.h>
2160 struct nameidata *nd = NULL;
2162 ((struct inode_operations *)0)->follow_link(NULL, nd);
2163 ((struct inode_operations *)0)->put_link(NULL, nd, NULL);
2165 AC_DEFINE(HAVE_SYMLINK_OPS_USE_NAMEIDATA, 1,
2166 [symlink inode operations need struct nameidata argument])
2168 ]) # LC_SYMLINK_OPS_USE_NAMEIDATA
2171 # LC_BIO_ENDIO_USES_ONE_ARG
2173 # 4.2 kernel bio_endio now only takes one argument
2175 AC_DEFUN([LC_BIO_ENDIO_USES_ONE_ARG], [
2176 LB_CHECK_COMPILE([if 'bio_endio' with one argument exist],
2178 #include <linux/bio.h>
2182 AC_DEFINE(HAVE_BIO_ENDIO_USES_ONE_ARG, 1,
2183 [bio_endio takes only one argument])
2185 ]) # LC_BIO_ENDIO_USES_ONE_ARG
2188 # LC_HAVE_LOOP_CTL_GET_FREE
2190 # 4.x kernel have moved userspace APIs to
2191 # the separate directory and all of them
2192 # support LOOP_CTL_GET_FREE
2194 AC_DEFUN([LC_HAVE_LOOP_CTL_GET_FREE], [
2195 LB_CHECK_FILE([$LINUX/include/linux/loop.h], [
2196 LB_CHECK_COMPILE([if have 'HAVE_LOOP_CTL_GET_FREE'],
2197 LOOP_CTL_GET_FREE, [
2198 #include <linux/loop.h>
2202 i = LOOP_CTL_GET_FREE;
2204 AC_DEFINE(HAVE_LOOP_CTL_GET_FREE, 1,
2205 [LOOP_CTL_GET_FREE exist])
2208 AC_DEFINE(HAVE_LOOP_CTL_GET_FREE, 1,
2209 [kernel has LOOP_CTL_GET_FREE])
2211 ]) # LC_HAVE_LOOP_CTL_GET_FREE
2214 # LC_HAVE_CACHE_HEAD_HLIST
2216 # 4.3 kernel swiched to hlist for cache_head
2218 AC_DEFUN([LC_HAVE_CACHE_HEAD_HLIST], [
2219 LB_CHECK_COMPILE([if 'struct cache_head' has 'cache_list' field],
2220 cache_head_has_hlist, [
2221 #include <linux/sunrpc/cache.h>
2223 do {} while(sizeof(((struct cache_head *)0)->cache_list));
2225 AC_DEFINE(HAVE_CACHE_HEAD_HLIST, 1,
2226 [cache_head has hlist cache_list])
2228 ]) # LC_HAVE_CACHE_HEAD_HLIST
2231 # LC_HAVE_XATTR_HANDLER_SIMPLIFIED
2233 # Kernel version 4.3 commit e409de992e3ea3674393465f07cc71c948edd87a
2234 # simplified xattr_handler handling by passing in the handler pointer
2236 AC_DEFUN([LC_HAVE_XATTR_HANDLER_SIMPLIFIED], [
2237 tmp_flags="$EXTRA_KCFLAGS"
2238 EXTRA_KCFLAGS="-Werror"
2239 LB_CHECK_COMPILE([if 'struct xattr_handler' functions pass in handler pointer],
2240 xattr_handler_simplified, [
2241 #include <linux/xattr.h>
2243 struct xattr_handler handler;
2245 ((struct xattr_handler *)0)->get(&handler, NULL, NULL, NULL, 0);
2246 ((struct xattr_handler *)0)->set(&handler, NULL, NULL, NULL, 0, 0);
2248 AC_DEFINE(HAVE_XATTR_HANDLER_SIMPLIFIED, 1, [handler pointer is parameter])
2250 EXTRA_KCFLAGS="$tmp_flags"
2251 ]) # LC_HAVE_XATTR_HANDLER_SIMPLIFIED
2254 # LC_HAVE_LOCKS_LOCK_FILE_WAIT
2256 # 4.4 kernel have moved locks API users to
2257 # locks_lock_inode_wait()
2259 AC_DEFUN([LC_HAVE_LOCKS_LOCK_FILE_WAIT], [
2260 LB_CHECK_COMPILE([if 'locks_lock_file_wait' exists],
2261 locks_lock_file_wait, [
2262 #include <linux/fs.h>
2264 locks_lock_file_wait(NULL, NULL);
2266 AC_DEFINE(HAVE_LOCKS_LOCK_FILE_WAIT, 1,
2267 [kernel has locks_lock_file_wait])
2269 ]) # LC_HAVE_LOCKS_LOCK_FILE_WAIT
2272 # LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
2274 # 4.4 kernel merged type-specific data with the payload data for keys
2276 AC_DEFUN([LC_HAVE_KEY_PAYLOAD_DATA_ARRAY], [
2277 LB_CHECK_COMPILE([if 'struct key' has 'payload.data' as an array],
2278 key_payload_data_array, [
2279 #include <linux/key.h>
2281 ((struct key *)0)->payload.data[0] = NULL;
2283 AC_DEFINE(HAVE_KEY_PAYLOAD_DATA_ARRAY, 1, [payload.data is an array])
2285 ]) #LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
2288 # LC_HAVE_FILE_DENTRY
2290 # 4.5 adds wrapper file_dentry
2292 AC_DEFUN([LC_HAVE_FILE_DENTRY], [
2293 LB_CHECK_COMPILE([if Linux kernel has 'file_dentry'],
2295 #include <linux/fs.h>
2299 AC_DEFINE(HAVE_FILE_DENTRY, 1,
2300 [kernel has file_dentry])
2302 ]) # LC_HAVE_FILE_DENTRY
2305 # LC_HAVE_INODE_LOCK
2307 # 4.5 introduced inode_lock
2309 AC_DEFUN([LC_HAVE_INODE_LOCK], [
2310 LB_CHECK_COMPILE([if 'inode_lock' is defined],
2312 #include <linux/fs.h>
2316 AC_DEFINE(HAVE_INODE_LOCK, 1,
2317 [inode_lock is defined])
2319 ]) # LC_HAVE_INODE_LOCK
2322 # LC_HAVE_IOP_GET_LINK
2324 # 4.5 vfs replaced iop->follow_link with
2327 AC_DEFUN([LC_HAVE_IOP_GET_LINK], [
2328 LB_CHECK_COMPILE([if 'iop' has 'get_link'],
2329 inode_ops_get_link, [
2330 #include <linux/fs.h>
2332 struct inode_operations iop;
2333 iop.get_link = NULL;
2335 AC_DEFINE(HAVE_IOP_GET_LINK, 1,
2336 [have iop get_link])
2338 ]) # LC_HAVE_IOP_GET_LINK
2341 # LC_HAVE_IN_COMPAT_SYSCALL
2343 # 4.6 renamed is_compat_task to in_compat_syscall
2345 AC_DEFUN([LC_HAVE_IN_COMPAT_SYSCALL], [
2346 LB_CHECK_COMPILE([if 'in_compat_syscall' is defined],
2347 in_compat_syscall, [
2348 #include <linux/compat.h>
2350 in_compat_syscall();
2352 AC_DEFINE(HAVE_IN_COMPAT_SYSCALL, 1,
2353 [have in_compat_syscall])
2355 ]) # LC_HAVE_IN_COMPAT_SYSCALL
2358 # LC_HAVE_XATTR_HANDLER_INODE_PARAM
2360 # Kernel version 4.6 commit b296821a7c42fa58baa17513b2b7b30ae66f3336
2361 # and commit 5930122683dff58f0846b0f0405b4bd598a3ba6a added inode parameter
2362 # to xattr_handler functions
2364 AC_DEFUN([LC_HAVE_XATTR_HANDLER_INODE_PARAM], [
2365 tmp_flags="$EXTRA_KCFLAGS"
2366 EXTRA_KCFLAGS="-Werror"
2367 LB_CHECK_COMPILE([if 'struct xattr_handler' functions have inode parameter],
2368 xattr_handler_inode_param, [
2369 #include <linux/xattr.h>
2371 const struct xattr_handler handler;
2373 ((struct xattr_handler *)0)->get(&handler, NULL, NULL, NULL, NULL, 0);
2374 ((struct xattr_handler *)0)->set(&handler, NULL, NULL, NULL, NULL, 0, 0);
2376 AC_DEFINE(HAVE_XATTR_HANDLER_INODE_PARAM, 1, [needs inode parameter])
2378 EXTRA_KCFLAGS="$tmp_flags"
2379 ]) # LC_HAVE_XATTR_HANDLER_INODE_PARAM
2384 # Kernel version 4.7 commit c8b8e32d700fe943a935e435ae251364d016c497
2385 # direct-io: eliminate the offset argument to ->direct_IO
2387 AC_DEFUN([LC_DIRECTIO_2ARGS], [
2388 LB_CHECK_COMPILE([if '->direct_IO()' taken 2 arguments],
2390 #include <linux/fs.h>
2392 struct address_space_operations ops;
2393 struct iov_iter *iter = NULL;
2394 struct kiocb *iocb = NULL;
2396 rc = ops.direct_IO(iocb, iter);
2398 AC_DEFINE(HAVE_DIRECTIO_2ARGS, 1,
2399 [direct_IO need 2 arguments])
2401 ]) # LC_DIRECTIO_2ARGS
2404 # LC_GENERIC_WRITE_SYNC_2ARGS
2406 # Kernel version 4.7 commit c8b8e32d700fe943a935e435ae251364d016c497
2407 # direct-io: eliminate the offset argument to ->direct_IO
2409 AC_DEFUN([LC_GENERIC_WRITE_SYNC_2ARGS], [
2410 LB_CHECK_COMPILE([if 'generic_write_sync()' taken 2 arguments],
2411 generic_write_sync_2args, [
2412 #include <linux/fs.h>
2414 struct kiocb *iocb = NULL;
2416 rc = generic_write_sync(iocb, 0);
2418 AC_DEFINE(HAVE_GENERIC_WRITE_SYNC_2ARGS, 1,
2419 [generic_write_sync need 2 arguments])
2421 ]) # LC_GENERIC_WRITE_SYNC_2ARGS
2424 # LC_HAVE_POSIX_ACL_VALID_USER_NS
2426 # 4.8 posix_acl_valid takes struct user_namespace
2428 AC_DEFUN([LC_HAVE_POSIX_ACL_VALID_USER_NS], [
2429 LB_CHECK_COMPILE([if 'posix_acl_valid' takes 'struct user_namespace'],
2431 #include <linux/fs.h>
2432 #include <linux/posix_acl.h>
2434 posix_acl_valid((struct user_namespace*)NULL, (const struct posix_acl*)NULL);
2436 AC_DEFINE(HAVE_POSIX_ACL_VALID_USER_NS, 1,
2437 [posix_acl_valid takes struct user_namespace])
2439 ]) # LC_HAVE_POSIX_ACL_VALID_USER_NS
2442 # LC_D_COMPARE_4ARGS
2444 # Kernel version 4.8 commit 6fa67e707559303e086303aeecc9e8b91ef497d5
2445 # get rid of 'parent' argument of ->d_compare()
2447 AC_DEFUN([LC_D_COMPARE_4ARGS], [
2448 LB_CHECK_COMPILE([if 'd_compare' taken 4 arguments],
2450 #include <linux/dcache.h>
2452 ((struct dentry_operations*)0)->d_compare(NULL,0,NULL,NULL);
2454 AC_DEFINE(HAVE_D_COMPARE_4ARGS, 1,
2455 [d_compare need 4 arguments])
2457 ]) # LC_D_COMPARE_4ARGS
2460 # LC_FULL_NAME_HASH_3ARGS
2462 # Kernel version 4.8 commit 8387ff2577eb9ed245df9a39947f66976c6bcd02
2463 # vfs: make the string hashes salt the hash
2465 AC_DEFUN([LC_FULL_NAME_HASH_3ARGS], [
2466 LB_CHECK_COMPILE([if 'full_name_hash' taken 3 arguments],
2467 full_name_hash_3args, [
2468 #include <linux/stringhash.h>
2471 hash = full_name_hash(NULL,NULL,0);
2473 AC_DEFINE(HAVE_FULL_NAME_HASH_3ARGS, 1,
2474 [full_name_hash need 3 arguments])
2476 ]) # LC_FULL_NAME_HASH_3ARGS
2479 # LC_STRUCT_POSIX_ACL_XATTR
2481 # Kernel version 4.8 commit 2211d5ba5c6c4e972ba6dbc912b2897425ea6621
2482 # posix_acl: xattr representation cleanups
2484 AC_DEFUN([LC_STRUCT_POSIX_ACL_XATTR], [
2485 LB_CHECK_COMPILE([if 'struct posix_acl_xattr_{header,entry}' defined],
2486 struct_posix_acl_xattr, [
2487 #include <linux/fs.h>
2488 #include <linux/posix_acl_xattr.h>
2490 struct posix_acl_xattr_header *h = NULL;
2491 struct posix_acl_xattr_entry *e;
2492 e = (void *)(h + 1);
2494 AC_DEFINE(HAVE_STRUCT_POSIX_ACL_XATTR, 1,
2495 [struct posix_acl_xattr_{header,entry} defined])
2497 ]) # LC_STRUCT_POSIX_ACL_XATTR
2502 # Kernel version 4.8 commit fd50ecaddf8372a1d96e0daeaac0f93cf04e4d42
2503 # removed {get,set,remove}xattr inode operations
2505 AC_DEFUN([LC_IOP_XATTR], [
2506 LB_CHECK_COMPILE([if 'inode_operations' has {get,set,remove}xattr members],
2508 #include <linux/fs.h>
2510 struct inode_operations iop;
2511 iop.setxattr = NULL;
2512 iop.getxattr = NULL;
2513 iop.removexattr = NULL;
2515 AC_DEFINE(HAVE_IOP_XATTR, 1,
2516 [inode_operations has {get,set,remove}xattr members])
2523 # Kernel version 4.9 commit 81243eacfa400f5f7b89f4c2323d0de9982bb0fb
2524 # cred: simpler, 1D supplementary groups
2526 AC_DEFUN([LC_GROUP_INFO_GID], [
2527 LB_CHECK_COMPILE([if 'struct group_info' has member 'gid'],
2529 #include <linux/cred.h>
2532 p = ((struct group_info *)0)->gid;
2534 AC_DEFINE(HAVE_GROUP_INFO_GID, 1,
2535 [struct group_info has member gid])
2537 ]) # LC_GROUP_INFO_GID
2542 # Kernel version 4.9 commit 5d6c31910bc0713e37628dc0ce677dcb13c8ccf4
2543 # added __vfs_{get,set,remove}xattr helpers
2545 AC_DEFUN([LC_VFS_SETXATTR], [
2546 LB_CHECK_COMPILE([if '__vfs_setxattr' helper is available],
2548 #include <linux/xattr.h>
2550 __vfs_setxattr(NULL, NULL, NULL, NULL, 0, 0);
2552 AC_DEFINE(HAVE_VFS_SETXATTR, 1,
2553 ['__vfs_setxattr is available])
2555 ]) # LC_VFS_SETXATTR
2558 # LC_IOP_GENERIC_READLINK
2560 # Kernel version 4.10 commit dfeef68862edd7d4bafe68ef7aeb5f658ef24bb5
2561 # removed generic_readlink from individual file systems
2563 AC_DEFUN([LC_IOP_GENERIC_READLINK], [
2564 LB_CHECK_COMPILE([if 'generic_readlink' still exist],
2565 inode_ops_readlink, [
2566 #include <linux/fs.h>
2568 struct inode_operations iop;
2569 iop.readlink = generic_readlink;
2571 AC_DEFINE(HAVE_IOP_GENERIC_READLINK, 1,
2572 [generic_readlink has been removed])
2574 ]) # LC_IOP_GENERIC_READLINK
2577 # LC_HAVE_VM_FAULT_ADDRESS
2579 # Kernel version 4.10 commit 1a29d85eb0f19b7d8271923d8917d7b4f5540b3e
2580 # removed virtual_address field. Need to use address field instead
2582 AC_DEFUN([LC_HAVE_VM_FAULT_ADDRESS], [
2583 LB_CHECK_COMPILE([if 'struct vm_fault' replaced virtual_address with address field],
2585 #include <linux/mm.h>
2587 struct vm_fault vmf;
2590 AC_DEFINE(HAVE_VM_FAULT_ADDRESS, 1,
2591 [virtual_address has been replaced by address field])
2593 ]) # LC_HAVE_VM_FAULT_ADDRESS
2596 # LC_INODEOPS_ENHANCED_GETATTR
2598 # Kernel version 4.11 commit a528d35e8bfcc521d7cb70aaf03e1bd296c8493f
2599 # expanded getattr to be able to get more stat information.
2601 AC_DEFUN([LC_INODEOPS_ENHANCED_GETATTR], [
2602 LB_CHECK_COMPILE([if 'inode_operations' getattr member can gather advance stats],
2604 #include <linux/fs.h>
2608 ((struct inode_operations *)1)->getattr(&path, NULL, 0, 0);
2610 AC_DEFINE(HAVE_INODEOPS_ENHANCED_GETATTR, 1,
2611 [inode_operations .getattr member function can gather advance stats])
2613 ]) # LC_INODEOPS_ENHANCED_GETATTR
2616 # LC_VM_OPERATIONS_REMOVE_VMF_ARG
2618 # Kernel version 4.11 commit 11bac80004499ea59f361ef2a5516c84b6eab675
2619 # removed struct vm_area_struct as an argument for vm_operations since
2620 # in the same kernel version struct vma_area_struct was folded into
2623 AC_DEFUN([LC_VM_OPERATIONS_REMOVE_VMF_ARG], [
2624 LB_CHECK_COMPILE([if 'struct vm_operations' removed struct vm_area_struct],
2625 vm_operations_no_vm_area_struct, [
2626 #include <linux/mm.h>
2628 struct vm_fault vmf;
2630 ((struct vm_operations_struct *)0)->fault(&vmf);
2631 ((struct vm_operations_struct *)0)->page_mkwrite(&vmf);
2633 AC_DEFINE(HAVE_VM_OPS_USE_VM_FAULT_ONLY, 1,
2634 ['struct vm_operations' remove struct vm_area_struct argument])
2636 ]) # LC_VM_OPERATIONS_REMOVE_VMF_ARG
2639 # Kernel version 4.12 commit 47f38c539e9a42344ff5a664942075bd4df93876
2640 # CURRENT_TIME is not 64 bit time safe so it was replaced with
2643 AC_DEFUN([LC_CURRENT_TIME], [
2644 LB_CHECK_COMPILE([if CURRENT_TIME has been replaced with current_time],
2646 #include <linux/fs.h>
2648 struct timespec ts = current_time(NULL);
2650 AC_DEFINE(HAVE_CURRENT_TIME, 1,
2651 [current_time() has replaced CURRENT_TIME])
2653 ]) # LIBCFS_CURRENT_TIME
2656 # LC_SUPER_SETUP_BDI_NAME
2658 # Kernel version 4.12 commit 9594caf216dc0fe3e318b34af0127276db661241
2659 # unified bdi handling
2661 AC_DEFUN([LC_SUPER_SETUP_BDI_NAME], [
2662 LB_CHECK_COMPILE([if 'super_setup_bdi_name' exist],
2663 super_setup_bdi_name, [
2664 #include <linux/fs.h>
2666 super_setup_bdi_name(NULL, "lustre");
2668 AC_DEFINE(HAVE_SUPER_SETUP_BDI_NAME, 1,
2669 ['super_setup_bdi_name' is available])
2671 ]) # LC_SUPER_SETUP_BDI_NAME
2676 # Lustre linux kernel checks
2678 AC_DEFUN([LC_PROG_LINUX], [
2679 AC_MSG_NOTICE([Lustre kernel checks
2680 ==============================================================================])
2684 LC_CONFIG_HEALTH_CHECK_WRITE
2685 LC_CONFIG_LRU_RESIZE
2687 LC_GLIBC_SUPPORT_FHANDLES
2692 LC_BLK_QUEUE_MAX_SEGMENTS
2695 LC_HAVE_XATTR_HANDLER_FLAGS
2698 LC_HAVE_DQUOT_FS_DISK_QUOTA
2699 LC_HAVE_DQUOT_SUSPEND
2700 LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE
2704 LC_EXPORT_SIMPLE_SETATTR
2705 LC_EXPORT_TRUNCATE_COMPLETE_PAGE
2709 LC_SBOPS_EVICT_INODE
2715 LC_BLKDEV_GET_BY_DEV
2716 LC_GENERIC_PERMISSION
2724 LC_HAVE_FHANDLE_SYSCALLS
2725 LC_HAVE_FSTYPE_MOUNT
2727 LC_HAVE_INODE_OWNER_OR_CAPABLE
2728 LC_HAVE_SECURITY_IINITSEC
2731 LC_DIRTY_INODE_WITH_FLAG
2735 LC_LM_XXX_LOCK_MANAGER_OPS
2739 LC_INODE_PERMISION_2ARGS
2740 LC_RADIX_EXCEPTION_ENTRY
2741 LC_HAVE_LOOP_CTL_GET_FREE
2744 LC_HAVE_PROTECT_I_NLINK
2747 LC_HAVE_MIGRATE_HEADER
2748 LC_MIGRATEPAGE_4ARGS
2749 LC_SUPEROPS_USE_DENTRY
2750 LC_INODEOPS_USE_UMODE_T
2751 LC_HAVE_CACHE_REGISTER
2755 LC_KMAP_ATOMIC_HAS_1ARG
2759 LC_HAVE_ENCODE_FH_PARENT
2760 LC_FILE_LLSEEK_SIZE_5ARG
2763 LC_DATA_FOR_LLITE_IS_LIST
2764 LC_DENTRY_OPEN_USE_PATH
2765 LC_HAVE_IOP_ATOMIC_OPEN
2766 LC_HAVE_SB_START_WRITE
2769 LC_HAVE_POSIXACL_USER_NS
2772 LC_HAVE_FILE_F_INODE
2774 LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
2777 LC_HAVE_HLIST_FOR_EACH_3ARG
2778 LC_HAVE_BIO_END_SECTOR
2782 LC_HAVE_REMOVE_PROC_SUBTREE
2784 LC_HAVE_PROJECT_QUOTA
2785 LC_HAVE_SECURITY_DENTRY_INIT_SECURITY
2792 LC_HAVE_DENTRY_D_U_D_ALIAS
2793 LC_HAVE_DENTRY_D_CHILD
2794 LC_PID_NS_FOR_CHILDREN
2797 LC_OLDSIZE_TRUNCATE_PAGECACHE
2806 LC_HAVE_TRUNCATE_IPAGES_FINAL
2807 LC_IOPS_RENAME_WITH_FLAGS
2814 LC_DIRECTIO_USE_ITER
2815 LC_HAVE_IOV_ITER_INIT_DIRECTION
2816 LC_HAVE_IOV_ITER_TRUNCATE
2817 LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
2823 LC_PERCPU_COUNTER_INIT
2824 LC_NFS_FILLDIR_USE_CTX
2828 LC_HAVE_DQUOT_QC_DQBLK
2831 LC_BACKING_DEV_INFO_REMOVAL
2832 LC_HAVE_BDI_CAP_MAP_COPY
2835 LC_CANCEL_DIRTY_PAGE
2839 LC_HAVE_SYNC_READ_WRITE
2842 LC_NEW_CANCEL_DIRTY_PAGE
2843 LC_BIO_ENDIO_USES_ONE_ARG
2844 LC_SYMLINK_OPS_USE_NAMEIDATA
2847 LC_HAVE_CACHE_HEAD_HLIST
2848 LC_HAVE_XATTR_HANDLER_SIMPLIFIED
2851 LC_HAVE_LOCKS_LOCK_FILE_WAIT
2852 LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
2855 LC_HAVE_SUBMIT_BIO_2ARGS
2856 LC_HAVE_CLEAN_BDEV_ALIASES
2863 LC_HAVE_IOP_GET_LINK
2866 LC_HAVE_IN_COMPAT_SYSCALL
2867 LC_HAVE_XATTR_HANDLER_INODE_PARAM
2871 LC_GENERIC_WRITE_SYNC_2ARGS
2874 LC_HAVE_POSIX_ACL_VALID_USER_NS
2876 LC_FULL_NAME_HASH_3ARGS
2877 LC_STRUCT_POSIX_ACL_XATTR
2885 LC_IOP_GENERIC_READLINK
2886 LC_HAVE_VM_FAULT_ADDRESS
2889 LC_INODEOPS_ENHANCED_GETATTR
2890 LC_VM_OPERATIONS_REMOVE_VMF_ARG
2894 LC_SUPER_SETUP_BDI_NAME
2897 AS_IF([test "x$enable_server" != xno], [
2907 # Check whether to build the client side of Lustre
2909 AC_DEFUN([LC_CONFIG_CLIENT], [
2910 AC_MSG_CHECKING([whether to build Lustre client support])
2911 AC_ARG_ENABLE([client],
2912 AC_HELP_STRING([--disable-client],
2913 [disable Lustre client support]),
2914 [], [enable_client="yes"])
2915 AC_MSG_RESULT([$enable_client])
2916 ]) # LC_CONFIG_CLIENT
2921 AC_DEFUN([LB_CONFIG_MPITESTS], [
2922 AC_ARG_ENABLE([mpitests],
2923 AC_HELP_STRING([--enable-mpitests=<yes|no|mpicc wrapper>],
2924 [include mpi tests]), [
2925 enable_mpitests="yes"
2928 MPICC_WRAPPER="mpicc"
2931 enable_mpitests="no"
2934 MPICC_WRAPPER=$enableval
2938 enable_mpitests="yes"
2939 MPICC_WRAPPER="mpicc"
2942 if test "x$enable_mpitests" != "xno"; then
2945 AC_CACHE_CHECK([whether mpitests can be built],
2946 lb_cv_mpi_tests, [AC_COMPILE_IFELSE([AC_LANG_SOURCE([
2950 MPI_Initialized(&flag);
2953 ])], [lb_cv_mpi_tests="yes"], [lb_cv_mpi_tests="no"])
2955 enable_mpitests=$lb_cv_mpi_tests
2958 AC_SUBST(MPICC_WRAPPER)
2959 ]) # LB_CONFIG_MPITESTS
2964 # whether to enable quota support global control
2966 AC_DEFUN([LC_CONFIG_QUOTA], [
2967 AC_MSG_CHECKING([whether to enable quota support global control])
2968 AC_ARG_ENABLE([quota],
2969 AC_HELP_STRING([--enable-quota],
2970 [enable quota support]),
2971 [], [enable_quota="yes"])
2972 AS_IF([test "x$enable_quota" = xyes],
2973 [AC_MSG_RESULT([yes])],
2974 [AC_MSG_RESULT([no])])
2975 ]) # LC_CONFIG_QUOTA
2980 AC_DEFUN([LC_QUOTA], [
2984 AS_IF([test "x$enable_quota" != xno -a "x$enable_utils" != xno], [
2985 AC_CHECK_HEADER([sys/quota.h],
2986 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1,
2987 [Define to 1 if you have <sys/quota.h>.])],
2988 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
2993 # LC_CONFIG_NODEMAP_PROC_DEBUG
2995 # enable nodemap proc file debugging
2997 AC_DEFUN([LC_NODEMAP_PROC_DEBUG], [
2998 AC_MSG_CHECKING([whether to enable nodemap proc debug])
2999 AC_ARG_ENABLE([nodemap_proc_debug],
3000 AC_HELP_STRING([--enable-nodemap-proc-debug],
3001 [enable nodemap proc debug]),
3002 [], [enable_nodemap_proc_debug="no"])
3003 AC_MSG_RESULT([$enable_nodemap_proc_debug])
3004 AS_IF([test "x$enable_nodemap_proc_debug" != xno],
3005 [AC_DEFINE(NODEMAP_PROC_DEBUG, 1,
3006 [enable nodemap proc debug support])])
3007 ]) # LC_NODEMAP_PROC_DEBUG
3012 # configure support for optional OSD implementation
3014 AC_DEFUN([LC_OSD_ADDON], [
3015 AC_MSG_CHECKING([whether to use OSD addon])
3017 AC_HELP_STRING([--with-osd=path],
3018 [set path to optional osd]),
3025 OSDADDON="$with_osd"
3032 AS_IF([test $ENABLEOSDADDON -eq 0], [
3036 OSDMODNAME=$(basename $OSDADDON)
3037 AS_IF([test -e $LUSTRE/$OSDMODNAME], [
3038 AC_MSG_RESULT([can't link])
3040 ], [ln -s $OSDADDON $LUSTRE/$OSDMODNAME], [
3041 AC_MSG_RESULT([$OSDMODNAME])
3042 OSDADDON="subdir-m += $OSDMODNAME"
3044 AC_MSG_RESULT([can't link])
3054 # other configure checks
3056 AC_DEFUN([LC_CONFIGURE], [
3057 AC_MSG_NOTICE([Lustre core checks
3058 ==============================================================================])
3060 AS_IF([test $target_cpu == "i686" -o $target_cpu == "x86_64"],
3061 [CFLAGS="$CFLAGS -Wall -Werror"])
3063 # maximum MDS thread count
3066 # lustre/utils/gss/gss_util.c
3067 # lustre/utils/gss/gssd_proc.c
3068 # lustre/utils/gss/krb5_util.c
3069 # lustre/utils/llog_reader.c
3070 # lustre/utils/create_iam.c
3071 # lustre/utils/libiam.c
3072 AC_CHECK_HEADERS([netdb.h endian.h])
3073 AC_CHECK_FUNCS([gethostbyname])
3075 # lustre/utils/llverdev.c
3076 AC_CHECK_HEADERS([blkid/blkid.h])
3078 # lustre/utils/llverfs.c
3079 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
3082 AC_CHECK_LIB([selinux], [is_selinux_enabled],
3083 [AC_CHECK_HEADERS([selinux/selinux.h],
3084 [SELINUX="-lselinux"
3085 AC_DEFINE([HAVE_SELINUX], 1,
3086 [support for selinux ])],
3089 No libselinux-devel package found, unable to build selinux enabled tools
3094 No selinux package found, unable to build selinux enabled tools
3100 AC_MSG_CHECKING([whether to report minimum OST free space])
3101 AC_ARG_ENABLE([mindf],
3102 AC_HELP_STRING([--enable-mindf],
3103 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
3104 [], [enable_mindf="no"])
3105 AC_MSG_RESULT([$enable_mindf])
3106 AS_IF([test "$enable_mindf" = "yes"],
3107 [AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])])
3109 AC_MSG_CHECKING([whether to randomly failing memory alloc])
3110 AC_ARG_ENABLE([fail_alloc],
3111 AC_HELP_STRING([--disable-fail-alloc],
3112 [disable randomly alloc failure]),
3113 [], [enable_fail_alloc="yes"])
3114 AC_MSG_RESULT([$enable_fail_alloc])
3115 AS_IF([test "x$enable_fail_alloc" != xno],
3116 [AC_DEFINE([RANDOM_FAIL_ALLOC], 1,
3117 [enable randomly alloc failure])])
3119 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
3120 AC_ARG_ENABLE([invariants],
3121 AC_HELP_STRING([--enable-invariants],
3122 [enable invariant checking (cpu intensive)]),
3123 [], [enable_invariants="no"])
3124 AC_MSG_RESULT([$enable_invariants])
3125 AS_IF([test "x$enable_invariants" = xyes],
3126 [AC_DEFINE([CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK], 1,
3127 [enable invariant checking])])
3129 AC_MSG_CHECKING([whether to track references with lu_ref])
3130 AC_ARG_ENABLE([lu_ref],
3131 AC_HELP_STRING([--enable-lu_ref],
3132 [enable lu_ref reference tracking code]),
3133 [], [enable_lu_ref="no"])
3134 AC_MSG_RESULT([$enable_lu_ref])
3135 AS_IF([test "x$enable_lu_ref" = xyes],
3136 [AC_DEFINE([USE_LU_REF], 1,
3137 [enable lu_ref reference tracking code])])
3139 AC_MSG_CHECKING([whether to enable page state tracking])
3140 AC_ARG_ENABLE([pgstate-track],
3141 AC_HELP_STRING([--enable-pgstate-track],
3142 [enable page state tracking]),
3143 [], [enable_pgstat_track="no"])
3144 AC_MSG_RESULT([$enable_pgstat_track])
3145 AS_IF([test "x$enable_pgstat_track" = xyes],
3146 [AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
3147 [enable page state tracking code])])
3150 AC_MSG_CHECKING([systemd unit file directory])
3151 AC_ARG_WITH([systemdsystemunitdir],
3152 [AS_HELP_STRING([--with-systemdsystemunitdir=DIR],
3153 [Directory for systemd service files])],
3154 [], [with_systemdsystemunitdir=auto])
3155 AS_IF([test "x$with_systemdsystemunitdir" = "xyes" -o "x$with_systemdsystemunitdir" = "xauto"],
3156 [def_systemdsystemunitdir=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)
3157 AS_IF([test "x$def_systemdsystemunitdir" = "x"],
3158 [AS_IF([test "x$with_systemdsystemunitdir" = "xyes"],
3159 [AC_MSG_ERROR([systemd support requested but pkg-config unable to query systemd package])])
3160 with_systemdsystemunitdir=no],
3161 [with_systemdsystemunitdir="$def_systemdsystemunitdir"])])
3162 AS_IF([test "x$with_systemdsystemunitdir" != "xno"],
3163 [AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])])
3164 AC_MSG_RESULT([$with_systemdsystemunitdir])
3170 # AM_CONDITIONALS for lustre
3172 AC_DEFUN([LC_CONDITIONALS], [
3173 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
3174 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
3175 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
3176 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
3177 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
3178 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
3179 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
3180 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
3181 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
3182 AM_CONDITIONAL(GSS_SSK, test x$enable_ssk = xyes)
3183 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
3184 AM_CONDITIONAL(HAVE_SYSTEMD, test "x$with_systemdsystemunitdir" != "xno")
3185 AM_CONDITIONAL(XATTR_HANDLER, test "x$lb_cv_compile_xattr_handler_flags" = xyes)
3186 ]) # LC_CONDITIONALS
3191 # files that should be generated with AC_OUTPUT
3193 AC_DEFUN([LC_CONFIG_FILES],
3197 lustre/autoconf/Makefile
3198 lustre/conf/Makefile
3199 lustre/contrib/Makefile
3201 lustre/include/Makefile
3202 lustre/include/lustre/Makefile
3203 lustre/include/uapi/linux/lustre/Makefile
3204 lustre/kernel_patches/targets/3.10-rhel7.target
3205 lustre/kernel_patches/targets/2.6-rhel6.9.target
3206 lustre/kernel_patches/targets/2.6-rhel6.8.target
3207 lustre/kernel_patches/targets/2.6-rhel6.7.target
3208 lustre/kernel_patches/targets/2.6-rhel6.6.target
3209 lustre/kernel_patches/targets/2.6-rhel6.target
3210 lustre/kernel_patches/targets/2.6-rhel5.target
3211 lustre/kernel_patches/targets/2.6-sles11.target
3212 lustre/kernel_patches/targets/3.0-sles11.target
3213 lustre/kernel_patches/targets/3.0-sles11sp3.target
3214 lustre/kernel_patches/targets/3.0-sles11sp4.target
3215 lustre/kernel_patches/targets/3.12-sles12.target
3216 lustre/kernel_patches/targets/4.4-sles12.target
3217 lustre/kernel_patches/targets/4.4-sles12sp3.target
3218 lustre/kernel_patches/targets/2.6-fc11.target
3219 lustre/kernel_patches/targets/2.6-fc12.target
3220 lustre/kernel_patches/targets/2.6-fc15.target
3221 lustre/kernel_patches/targets/3.x-fc18.target
3222 lustre/ldlm/Makefile
3224 lustre/fid/autoMakefile
3225 lustre/llite/Makefile
3226 lustre/llite/autoMakefile
3228 lustre/lov/autoMakefile
3230 lustre/mdc/autoMakefile
3232 lustre/lmv/autoMakefile
3233 lustre/lfsck/Makefile
3234 lustre/lfsck/autoMakefile
3236 lustre/mdt/autoMakefile
3238 lustre/mdd/autoMakefile
3240 lustre/fld/autoMakefile
3241 lustre/obdclass/Makefile
3242 lustre/obdclass/autoMakefile
3243 lustre/obdclass/linux/Makefile
3244 lustre/obdecho/Makefile
3245 lustre/obdecho/autoMakefile
3247 lustre/ofd/autoMakefile
3249 lustre/osc/autoMakefile
3251 lustre/ost/autoMakefile
3252 lustre/osd-ldiskfs/Makefile
3253 lustre/osd-ldiskfs/autoMakefile
3254 lustre/osd-zfs/Makefile
3255 lustre/osd-zfs/autoMakefile
3257 lustre/mgc/autoMakefile
3259 lustre/mgs/autoMakefile
3260 lustre/target/Makefile
3261 lustre/ptlrpc/Makefile
3262 lustre/ptlrpc/autoMakefile
3263 lustre/ptlrpc/gss/Makefile
3264 lustre/ptlrpc/gss/autoMakefile
3265 lustre/quota/Makefile
3266 lustre/quota/autoMakefile
3267 lustre/scripts/Makefile
3268 lustre/scripts/systemd/Makefile
3269 lustre/tests/Makefile
3270 lustre/tests/mpi/Makefile
3271 lustre/tests/kernel/Makefile
3272 lustre/tests/kernel/autoMakefile
3273 lustre/utils/Makefile
3274 lustre/utils/gss/Makefile
3276 lustre/osp/autoMakefile
3278 lustre/lod/autoMakefile
3280 ]) # LC_CONFIG_FILES