4 # Wrapper for AC_CONFIG_SUBDIR
6 AC_DEFUN([LC_CONFIG_SRCDIR], [
7 AC_CONFIG_SRCDIR([lustre/obdclass/obdo.c])
15 # lustre specific paths
17 AC_DEFUN([LC_PATH_DEFAULTS], [
18 # ptlrpc kernel build requires this
26 demodir='$(docdir)/demo'
29 pkgexampledir='${pkgdatadir}/examples'
30 AC_SUBST(pkgexampledir)
36 # is the target os supported?
38 AC_DEFUN([LC_TARGET_SUPPORTED], [
47 ]) # LC_TARGET_SUPPORTED
50 # LC_CONFIG_OBD_BUFFER_SIZE
52 # the maximum buffer size of lctl ioctls
54 AC_DEFUN([LC_CONFIG_OBD_BUFFER_SIZE], [
55 AC_MSG_CHECKING([for maximum OBD ioctl size])
56 AC_ARG_WITH([obd-buffer-size],
57 AC_HELP_STRING([--with-obd-buffer-size=[size]],
58 [set lctl ioctl maximum bytes (default=8192)]),
59 [OBD_BUFFER_SIZE=$with_obd_buffer_size],
60 [OBD_BUFFER_SIZE=8192])
61 AC_MSG_RESULT([$OBD_BUFFER_SIZE bytes])
62 AC_DEFINE_UNQUOTED(CONFIG_LUSTRE_OBD_MAX_IOCTL_BUFFER, $OBD_BUFFER_SIZE,
64 ]) # LC_CONFIG_OBD_BUFFER_SIZE
67 # LC_GLIBC_SUPPORT_FHANDLES
69 AC_DEFUN([LC_GLIBC_SUPPORT_FHANDLES], [
70 AC_CHECK_FUNCS([name_to_handle_at],
71 [AC_DEFINE(HAVE_FHANDLE_GLIBC_SUPPORT, 1,
72 [file handle and related syscalls are supported])],
73 [AC_MSG_WARN([file handle and related syscalls are not supported])])
74 ]) # LC_GLIBC_SUPPORT_FHANDLES
77 # LC_FUNC_DEV_SET_RDONLY
79 # check whether dev_set_rdonly is exported. This is needed until we
80 # have another mechanism to fence IO from the underlying device.
82 AC_DEFUN([LC_FUNC_DEV_SET_RDONLY], [
83 LB_CHECK_EXPORT([dev_set_rdonly], [block/ll_rw_block.c block/blk-core.c],
84 [AC_DEFINE(HAVE_DEV_SET_RDONLY, 1,
85 [kernel exports dev_set_rdonly])],
86 [AC_MSG_WARN([kernel missing dev_set_rdonly patch for testing])])
87 ]) # LC_FUNC_DEV_SET_RDONLY
92 # Ensure the stack size is at least 8k in Lustre server (all kernels)
94 AC_DEFUN([LC_STACK_SIZE], [
95 LB_CHECK_COMPILE([if stack size is at least 8k],
97 #include <linux/thread_info.h>
99 #if THREAD_SIZE < 8192
100 #error "stack size < 8192"
102 ], [], [AC_MSG_ERROR([
104 Lustre requires that Linux is configured with at least a 8KB stack.
111 # Allow the user to set the MDS thread upper limit
113 AC_DEFUN([LC_MDS_MAX_THREADS], [
114 AC_MSG_CHECKING([for maximum number of MDS threads])
115 AC_ARG_WITH([mds_max_threads],
116 AC_HELP_STRING([--with-mds-max-threads=count],
117 [maximum threads available on the MDS: (default=512)]),
118 [AC_DEFINE_UNQUOTED(MDS_MAX_THREADS, $with_mds_max_threads,
119 [maximum number of MDS threads])])
120 AC_MSG_RESULT([$with_mds_max_threads])
121 ]) # LC_MDS_MAX_THREADS
126 # the pinger is temporary, until we have the recovery node in place
128 AC_DEFUN([LC_CONFIG_PINGER], [
129 AC_MSG_CHECKING([whether to enable Lustre pinger support])
130 AC_ARG_ENABLE([pinger],
131 AC_HELP_STRING([--disable-pinger],
132 [disable recovery pinger support]),
133 [], [enable_pinger="yes"])
134 AC_MSG_RESULT([$enable_pinger])
135 AS_IF([test "x$enable_pinger" != xno],
136 [AC_DEFINE(ENABLE_PINGER, 1,[Use the Pinger])])
137 ]) # LC_CONFIG_PINGER
142 # do checksum of bulk data between client and OST
144 AC_DEFUN([LC_CONFIG_CHECKSUM], [
145 AC_MSG_CHECKING([whether to enable data checksum support])
146 AC_ARG_ENABLE([checksum],
147 AC_HELP_STRING([--disable-checksum],
148 [disable data checksum support]),
149 [], [enable_checksum="yes"])
150 AC_MSG_RESULT([$enable_checksum])
151 AS_IF([test "x$enable_checksum" != xno],
152 [AC_DEFINE(ENABLE_CHECKSUM, 1, [do data checksums])])
153 ]) # LC_CONFIG_CHECKSUM
156 # LC_CONFIG_HEALTH_CHECK_WRITE
158 # Turn off the actual write to the disk
160 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE], [
161 AC_MSG_CHECKING([whether to enable a write with the health check])
162 AC_ARG_ENABLE([health_write],
163 AC_HELP_STRING([--enable-health_write],
164 [enable disk writes when doing health check]),
165 [], [enable_health_write="no"])
166 AC_MSG_RESULT([$enable_health_write])
167 AS_IF([test "x$enable_health_write" != xno],
168 [AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, [Write when Checking Health])])
169 ]) # LC_CONFIG_HEALTH_CHECK_WRITE
172 # LC_CONFIG_LRU_RESIZE
174 AC_DEFUN([LC_CONFIG_LRU_RESIZE], [
175 AC_MSG_CHECKING([whether to enable lru self-adjusting])
176 AC_ARG_ENABLE([lru_resize],
177 AC_HELP_STRING([--enable-lru-resize],
178 [enable lru resize support]),
179 [], [enable_lru_resize="yes"])
180 AC_MSG_RESULT([$enable_lru_resize])
181 AS_IF([test "x$enable_lru_resize" != xno],
182 [AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])])
183 ]) # LC_CONFIG_LRU_RESIZE
188 # Quota support. The kernel must support CONFIG_QUOTA.
190 AC_DEFUN([LC_QUOTA_CONFIG], [
191 LB_CHECK_CONFIG_IM([QUOTA], [],
194 Lustre quota requires that CONFIG_QUOTA is enabled in your kernel.
199 # LC_EXPORT_TRUNCATE_COMPLETE_PAGE
201 # truncate_complete_page() has never been exported from an upstream kernel
202 # remove_from_page_cache() was exported between 2.6.35 and 2.6.38
203 # delete_from_page_cache() is exported from 2.6.39
205 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE_PAGE], [
206 LB_CHECK_EXPORT([truncate_complete_page], [mm/truncate.c],
207 [AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
208 [kernel export truncate_complete_page])])
209 LB_CHECK_EXPORT([remove_from_page_cache], [mm/filemap.c],
210 [AC_DEFINE(HAVE_REMOVE_FROM_PAGE_CACHE, 1,
211 [kernel export remove_from_page_cache])])
212 LB_CHECK_EXPORT([delete_from_page_cache], [mm/filemap.c],
213 [AC_DEFINE(HAVE_DELETE_FROM_PAGE_CACHE, 1,
214 [kernel export delete_from_page_cache])])
215 ]) # LC_EXPORT_TRUNCATE_COMPLETE_PAGE
218 # LC_CONFIG_GSS_KEYRING
220 # default 'auto', tests for dependencies, if found, enables;
221 # only called if gss is enabled
223 AC_DEFUN([LC_CONFIG_GSS_KEYRING], [
224 AC_MSG_CHECKING([whether to enable gss keyring backend])
225 AC_ARG_ENABLE([gss_keyring],
226 [AC_HELP_STRING([--disable-gss-keyring],
227 [disable gss keyring backend])],
228 [], [enable_gss_keyring="auto"])
229 AC_MSG_RESULT([$enable_gss_keyring])
230 AS_IF([test "x$enable_gss_keyring" != xno], [
231 LB_CHECK_CONFIG_IM([KEYS], [], [
232 gss_keyring_conf_test="fail"
233 AC_MSG_WARN([GSS keyring backend requires that CONFIG_KEYS be enabled in your kernel.])])
235 AC_CHECK_LIB([keyutils], [keyctl_search], [], [
236 gss_keyring_conf_test="fail"
237 AC_MSG_WARN([GSS keyring backend requires libkeyutils])])
239 AS_IF([test "x$gss_keyring_conf_test" != xfail], [
240 AC_DEFINE([HAVE_GSS_KEYRING], [1],
241 [Define this if you enable gss keyring backend])
242 enable_gss_keyring="yes"
244 AS_IF([test "x$enable_gss_keyring" = xyes], [
245 AC_MSG_ERROR([Cannot enable gss_keyring. See above for details.])
249 ]) # LC_CONFIG_GSS_KEYRING
252 # LC_HAVE_CRED_TGCRED
254 # rhel7 struct cred has no member tgcred
256 AC_DEFUN([LC_HAVE_CRED_TGCRED], [
257 LB_CHECK_COMPILE([if 'struct cred' has member 'tgcred'],
259 #include <linux/cred.h>
261 ((struct cred *)0)->tgcred = NULL;
263 AC_DEFINE(HAVE_CRED_TGCRED, 1,
264 [struct cred has member tgcred])
266 ]) # LC_HAVE_CRED_TGCRED
269 # LC_KEY_TYPE_INSTANTIATE_2ARGS
271 # rhel7 key_type->instantiate takes 2 args (struct key, struct key_preparsed_payload)
273 AC_DEFUN([LC_KEY_TYPE_INSTANTIATE_2ARGS], [
274 LB_CHECK_COMPILE([if 'key_type->instantiate' has two args],
275 key_type_instantiate_2args, [
276 #include <linux/key-type.h>
278 ((struct key_type *)0)->instantiate(0, NULL);
280 AC_DEFINE(HAVE_KEY_TYPE_INSTANTIATE_2ARGS, 1,
281 [key_type->instantiate has two args])
283 ]) # LC_KEY_TYPE_INSTANTIATE_2ARGS
288 AC_DEFUN([LC_CONFIG_SUNRPC], [
289 LB_CHECK_CONFIG_IM([SUNRPC], [], [
290 AS_IF([test "x$sunrpc_required" = xyes], [
293 kernel SUNRPC support is required by using GSS.
296 ]) # LC_CONFIG_SUNRPC
299 # LC_CONFIG_GSS (default 'auto' (tests for dependencies, if found, enables))
301 # Build gss and related tools of Lustre. Currently both kernel and user space
302 # parts are depend on linux platform.
304 AC_DEFUN([LC_CONFIG_GSS], [
305 AC_MSG_CHECKING([whether to enable gss support])
307 [AC_HELP_STRING([--enable-gss], [enable gss support])],
308 [], [enable_gss="auto"])
309 AC_MSG_RESULT([$enable_gss])
311 AS_IF([test "x$enable_gss" != xno], [
312 LC_CONFIG_GSS_KEYRING
314 LC_KEY_TYPE_INSTANTIATE_2ARGS
315 sunrpc_required=$enable_gss
319 LB_CHECK_CONFIG_IM([CRYPTO_MD5], [],
320 [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
321 LB_CHECK_CONFIG_IM([CRYPTO_SHA1], [],
322 [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
323 LB_CHECK_CONFIG_IM([CRYPTO_SHA256], [],
324 [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
325 LB_CHECK_CONFIG_IM([CRYPTO_SHA512], [],
326 [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
328 require_krb5=$enable_gss
332 AS_IF([test -n "$KRBDIR"], [
333 gss_conf_test="success"
335 gss_conf_test="failure"
338 AS_IF([test "x$gss_conf_test" = xsuccess], [
339 AC_DEFINE([HAVE_GSS], [1], [Define this is if you enable gss])
347 # LC_HAVE_VOID_OPENSSL_HMAC_FUNCS
349 # OpenSSL 1.0+ return int for HMAC functions but previous versions do not
350 AC_DEFUN([LC_HAVE_VOID_OPENSSL_HMAC_FUNCS], [
351 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
352 #include <openssl/hmac.h>
353 #include <openssl/evp.h>
359 rc = HMAC_Init_ex(&ctx, "test", 4, EVP_md_null(), NULL);
361 ])],[],[AC_DEFINE(HAVE_VOID_OPENSSL_HMAC_FUNCS, 1,
362 [OpenSSL HMAC functions return void instead of int])
364 ]) # LC_HAVE_VOID_OPENSSL_HMAC_FUNCS
366 # LC_INODE_PERMISION_2ARGS
368 # up to v2.6.27 had a 3 arg version (inode, mask, nameidata)
369 # v2.6.27->v2.6.37 had a 2 arg version (inode, mask)
370 # v2.6.37->v3.0 had a 3 arg version (inode, mask, nameidata)
371 # v3.1 onward have a 2 arg version (inode, mask)
373 AC_DEFUN([LC_INODE_PERMISION_2ARGS], [
374 LB_CHECK_COMPILE([if 'inode_operations->permission' has two args],
375 inode_ops_permission_2args, [
376 #include <linux/fs.h>
378 struct inode *inode __attribute__ ((unused));
381 inode->i_op->permission(NULL, 0);
383 AC_DEFINE(HAVE_INODE_PERMISION_2ARGS, 1,
384 [inode_operations->permission has two args])
386 ]) # LC_INODE_PERMISION_2ARGS
389 # LC_BLK_QUEUE_MAX_SEGMENTS
391 # 2.6.32 replaces 2 functions blk_queue_max_phys_segments and blk_queue_max_hw_segments by blk_queue_max_segments
393 AC_DEFUN([LC_BLK_QUEUE_MAX_SEGMENTS], [
394 LB_CHECK_COMPILE([if 'blk_queue_max_segments' is defined],
395 blk_queue_max_segments, [
396 #include <linux/blkdev.h>
398 blk_queue_max_segments(NULL, 0);
400 AC_DEFINE(HAVE_BLK_QUEUE_MAX_SEGMENTS, 1,
401 [blk_queue_max_segments is defined])
403 ]) # LC_BLK_QUEUE_MAX_SEGMENTS
406 # LC_HAVE_DQUOT_FS_DISK_QUOTA
408 # 2.6.34 has quotactl_ops->[sg]et_dqblk that take struct fs_disk_quota
410 AC_DEFUN([LC_HAVE_DQUOT_FS_DISK_QUOTA], [
411 tmp_flags="$EXTRA_KCFLAGS"
412 EXTRA_KCFLAGS="-Werror"
413 LB_CHECK_COMPILE([if 'quotactl_ops.set_dqblk' takes struct fs_disk_quota],
415 #include <linux/fs.h>
416 #include <linux/quota.h>
418 ((struct quotactl_ops *)0)->set_dqblk(NULL, 0, 0, (struct fs_disk_quota*)0);
420 AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1,
421 [quotactl_ops.set_dqblk takes struct fs_disk_quota])
423 LB_CHECK_COMPILE([if 'quotactl_ops.set_dqblk' takes struct kqid & fs_disk_quota],
424 kqid_fs_disk_quota, [
425 #include <linux/fs.h>
426 #include <linux/quota.h>
428 ((struct quotactl_ops *)0)->set_dqblk((struct super_block*)0, *((struct kqid*)0), (struct fs_disk_quota*)0);
430 AC_DEFINE(HAVE_DQUOT_FS_DISK_QUOTA, 1,
431 [quotactl_ops.set_dqblk takes struct fs_disk_quota])
432 AC_DEFINE(HAVE_DQUOT_KQID, 1,
433 [quotactl_ops.set_dqblk takes struct kqid])
436 EXTRA_KCFLAGS="$tmp_flags"
437 ]) # LC_HAVE_DQUOT_FS_DISK_QUOTA
440 # LC_HAVE_DQUOT_SUSPEND
442 # 2.6.34 has renamed dquot options to dquot_*, check for dquot_suspend
444 AC_DEFUN([LC_HAVE_DQUOT_SUSPEND], [
445 LB_CHECK_COMPILE([if 'dquot_suspend' is defined],
447 #include <linux/quotaops.h>
449 dquot_suspend(NULL, -1);
451 AC_DEFINE(HAVE_DQUOT_SUSPEND, 1, [dquot_suspend is defined])
453 ]) # LC_HAVE_DQUOT_SUSPEND
458 # Check if kernel has been patched for 64-bit quota limits support.
459 # The upstream version of this patch in RHEL6 2.6.32 kernels introduces
460 # the constant QFMT_VFS_V1 in include/linux/quota.h, so we can check for
461 # that in the absence of quotaio_v1.h in the kernel headers.
463 AC_DEFUN([LC_QUOTA64], [
464 tmp_flags="$EXTRA_KCFLAGS"
465 EXTRA_KCFLAGS="-I$LINUX/fs"
466 LB_CHECK_COMPILE([if kernel has 64-bit quota limits support],
468 #include <linux/kernel.h>
469 #include <linux/fs.h>
470 #if defined(HAVE_FS_QUOTA_QUOTAIO_H)
471 #include <quota/quotaio_v2.h>
472 struct v2r1_disk_dqblk dqblk_r1;
474 #include <linux/quota.h>
475 int ver = QFMT_VFS_V1;
478 AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
480 LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],
481 [AC_MSG_ERROR([You have got no 64-bit kernel quota support.])])
483 EXTRA_KCFLAGS=$tmp_flags
487 # LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE
489 # 2.6.34 adds __add_wait_queue_exclusive
491 AC_DEFUN([LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE], [
492 LB_CHECK_COMPILE([if '__add_wait_queue_exclusive' exists],
493 __add_wait_queue_exclusive, [
494 #include <linux/wait.h>
496 wait_queue_head_t queue;
498 __add_wait_queue_exclusive(&queue, &wait);
500 AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1,
501 [__add_wait_queue_exclusive exists])
503 ]) # LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE
506 # LC_FS_STRUCT_RWLOCK
508 # 2.6.36 fs_struct.lock use spinlock instead of rwlock.
510 AC_DEFUN([LC_FS_STRUCT_RWLOCK], [
511 LB_CHECK_COMPILE([if 'fs_struct.lock' use rwlock],
513 #include <asm/atomic.h>
514 #include <linux/spinlock.h>
515 #include <linux/fs_struct.h>
517 ((struct fs_struct *)0)->lock = (rwlock_t){ 0 };
519 AC_DEFINE(HAVE_FS_STRUCT_RWLOCK, 1, [fs_struct.lock use rwlock])
521 ]) # LC_FS_STRUCT_RWLOCK
524 # LC_SBOPS_EVICT_INODE
526 # 2.6.36 super_operations add evict_inode method. it hybird of
527 # delete_inode & clear_inode.
529 AC_DEFUN([LC_SBOPS_EVICT_INODE], [
530 LB_CHECK_COMPILE([if 'super_operations.evict_inode' exist],
531 super_ops_evict_inode, [
532 #include <linux/fs.h>
534 ((struct super_operations *)0)->evict_inode(NULL);
536 AC_DEFINE(HAVE_SBOPS_EVICT_INODE, 1,
537 [super_operations.evict_inode() is exist in kernel])
539 ]) # LC_SBOPS_EVICT_INODE
544 # 2.6.35 file_operations.fsync taken 2 arguments.
545 # 3.0.0 file_operations.fsync takes 4 arguments.
547 AC_DEFUN([LC_FILE_FSYNC], [
548 LB_CHECK_COMPILE([if 'file_operations.fsync' takes 4 arguments],
549 file_ops_fsync_4args, [
550 #include <linux/fs.h>
552 ((struct file_operations *)0)->fsync(NULL, 0, 0, 0);
554 AC_DEFINE(HAVE_FILE_FSYNC_4ARGS, 1,
555 [file_operations.fsync takes 4 arguments])
557 LB_CHECK_COMPILE([if 'file_operations.fsync' takes 2 arguments],
558 file_ops_fsync_2args, [
559 #include <linux/fs.h>
561 ((struct file_operations *)0)->fsync(NULL, 0);
563 AC_DEFINE(HAVE_FILE_FSYNC_2ARGS, 1,
564 [file_operations.fsync takes 2 arguments])
572 # 2.6.37 remove kernel_locked
574 AC_DEFUN([LC_KERNEL_LOCKED], [
575 LB_CHECK_COMPILE([if 'kernel_locked' is defined],
577 #include <linux/smp_lock.h>
581 AC_DEFINE(HAVE_KERNEL_LOCKED, 1, [kernel_locked is defined])
583 ]) # LC_KERNEL_LOCKED
588 # 2.6.38 dentry_operations.d_compare() taken 7 arguments.
590 AC_DEFUN([LC_D_COMPARE_7ARGS], [
591 LB_CHECK_COMPILE([if 'dentry_operations.d_compare()' taken 7 arguments],
592 dentry_ops_d_compare_7arg, [
593 #include <linux/dcache.h>
595 ((struct dentry_operations*)0)->d_compare(NULL,NULL,NULL,NULL,0,NULL,NULL);
597 AC_DEFINE(HAVE_D_COMPARE_7ARGS, 1, [d_compare need 7 arguments])
599 ]) # LC_D_COMPARE_7ARGS
604 # 2.6.38 dentry_operations.d_delete() defined 'const' for 1st parameter.
606 AC_DEFUN([LC_D_DELETE_CONST], [
607 tmp_flags="$EXTRA_KCFLAGS"
608 EXTRA_KCFLAGS="-Werror"
609 LB_CHECK_COMPILE([if 'dentry_operations.d_delete()' has const declare on first parameter],
610 dentry_ops_d_delete_1st_const, [
611 #include <linux/dcache.h>
613 const struct dentry *d = NULL;
614 ((struct dentry_operations*)0)->d_delete(d);
616 AC_DEFINE(HAVE_D_DELETE_CONST, const,
617 [d_delete first parameter declared const])
619 AC_DEFINE(HAVE_D_DELETE_CONST, [],
620 [d_delete first parameter declared is not const])
622 EXTRA_KCFLAGS="$tmp_flags"
623 ]) # LC_D_DELETE_CONST
628 # 2.6.38 dcache_lock removed. rcu-walk committed.
630 AC_DEFUN([LC_DCACHE_LOCK], [
631 LB_CHECK_COMPILE([if 'dcache_lock' is exist],
633 #include <linux/dcache.h>
635 spin_lock(&dcache_lock);
637 AC_DEFINE(HAVE_DCACHE_LOCK, 1,
638 [dcache_lock is exist])
645 # 2.6.38 inode.i_rcu added.
647 AC_DEFUN([LC_INODE_I_RCU], [
648 LB_CHECK_COMPILE([if 'inode.i_rcu' exists],
650 #include <linux/fs.h>
653 struct rcu_head rcu = {};
656 AC_DEFINE(HAVE_INODE_I_RCU, 1,
657 [inode.i_rcu exists])
662 # LC_BLKDEV_GET_BY_DEV
664 # 2.6.38 export blkdev_get_by_dev
666 AC_DEFUN([LC_BLKDEV_GET_BY_DEV], [
667 LB_CHECK_EXPORT([blkdev_get_by_dev], [fs/block_dev.c],
668 [AC_DEFINE(HAVE_BLKDEV_GET_BY_DEV, 1,
669 [blkdev_get_by_dev is exported by the kernel])])
670 ]) # LC_BLKDEV_GET_BY_DEV
673 # LC_EXPORT_SIMPLE_SETATTR
675 # 2.6.38 export simple_setattr
677 AC_DEFUN([LC_EXPORT_SIMPLE_SETATTR], [
678 LB_CHECK_EXPORT([simple_setattr], [fs/libfs.c],
679 [AC_DEFINE(HAVE_SIMPLE_SETATTR, 1,
680 [simple_setattr is exported by the kernel])])
681 ]) # LC_EXPORT_SIMPLE_SETATTR
686 # truncate callback removed since 2.6.39
688 AC_DEFUN([LC_IOP_TRUNCATE], [
689 LB_CHECK_COMPILE([if 'inode_operations' has '.truncate' member function],
690 inode_ops_truncate, [
691 #include <linux/fs.h>
693 ((struct inode_operations *)0)->truncate(NULL);
695 AC_DEFINE(HAVE_INODEOPS_TRUNCATE, 1,
696 [inode_operations has .truncate member function])
701 # LC_REQUEST_QUEUE_UNPLUG_FN
703 # 2.6.39 remove unplug_fn from request_queue.
705 AC_DEFUN([LC_REQUEST_QUEUE_UNPLUG_FN], [
706 LB_CHECK_COMPILE([if 'request_queue' has 'unplug_fn' field],
707 request_queue_unplug_fn, [
708 #include <linux/blkdev.h>
710 do {} while(sizeof(((struct request_queue *)0)->unplug_fn));
712 AC_DEFINE(HAVE_REQUEST_QUEUE_UNPLUG_FN, 1,
713 [request_queue has unplug_fn field])
715 ]) # LC_REQUEST_QUEUE_UNPLUG_FN
718 # LC_HAVE_FSTYPE_MOUNT
720 # 2.6.39 replace get_sb with mount in struct file_system_type
722 AC_DEFUN([LC_HAVE_FSTYPE_MOUNT], [
723 LB_CHECK_COMPILE([if 'file_system_type' has 'mount' field],
724 file_system_type_mount, [
725 #include <linux/fs.h>
727 struct file_system_type fst;
728 void *i = (void *) fst.mount;
730 AC_DEFINE(HAVE_FSTYPE_MOUNT, 1,
731 [struct file_system_type has mount field])
733 ]) # LC_HAVE_FSTYPE_MOUNT
736 # LC_HAVE_FHANDLE_SYSCALLS
738 # 2.6.39 The open_by_handle_at() and name_to_handle_at() system calls were
739 # added to Linux kernel 2.6.39.
740 # Check if client supports these functions
742 AC_DEFUN([LC_HAVE_FHANDLE_SYSCALLS], [
743 LB_CHECK_CONFIG_IM([FHANDLE],[
744 AC_DEFINE(HAVE_FHANDLE_SYSCALLS, 1,
745 [kernel supports fhandles and related syscalls])
747 ]) # LC_HAVE_FHANDLE_SYSCALLS
750 # LC_HAVE_INODE_OWNER_OR_CAPABLE
752 # 2.6.39 renames is_owner_or_cap to inode_owner_or_capable
754 AC_DEFUN([LC_HAVE_INODE_OWNER_OR_CAPABLE], [
755 LB_CHECK_COMPILE([if 'inode_owner_or_capable' exist],
756 inode_owner_or_capable, [
757 #include <linux/fs.h>
759 inode_owner_or_capable(NULL);
761 AC_DEFINE(HAVE_INODE_OWNER_OR_CAPABLE, 1,
762 [inode_owner_or_capable exist])
764 ]) # LC_HAVE_INODE_OWNER_OR_CAPABLE
767 # LC_DIRTY_INODE_WITH_FLAG
769 # 3.0 dirty_inode() has a flag parameter
770 # see kernel commit aa38572954ade525817fe88c54faebf85e5a61c0
772 AC_DEFUN([LC_DIRTY_INODE_WITH_FLAG], [
773 LB_CHECK_COMPILE([if 'dirty_inode' super_operation takes flag],
774 dirty_inode_super_operation_flag, [
775 #include <linux/fs.h>
778 inode->i_sb->s_op->dirty_inode(NULL, 0);
780 AC_DEFINE(HAVE_DIRTY_INODE_HAS_FLAG, 1,
781 [dirty_inode super_operation takes flag])
783 ]) # LC_DIRTY_INODE_WITH_FLAG
786 # LC_GENERIC_PERMISSION
788 # 2.6.38 generic_permission taken 4 parameters.
789 # in fact, it means rcu-walk aware permission bring.
791 # 3.1 generic_permission taken 2 parameters.
792 # see kernel commit 2830ba7f34ebb27c4e5b8b6ef408cd6d74860890
794 AC_DEFUN([LC_GENERIC_PERMISSION], [
795 LB_CHECK_COMPILE([if 'generic_permission' take 2 arguments],
796 generic_permission_2args, [
797 #include <linux/fs.h>
799 generic_permission(NULL, 0);
801 AC_DEFINE(HAVE_GENERIC_PERMISSION_2ARGS, 1,
802 [generic_permission taken 2 arguments])
804 LB_CHECK_COMPILE([if 'generic_permission' take 4 arguments],
805 generic_permission_4args, [
806 #include <linux/fs.h>
808 generic_permission(NULL, 0, 0, NULL);
810 AC_DEFINE(HAVE_GENERIC_PERMISSION_4ARGS, 1,
811 [generic_permission taken 4 arguments])
814 ]) # LC_GENERIC_PERMISSION
817 # LC_LM_XXX_LOCK_MANAGER_OPS
819 # 3.1 renames lock-manager ops(lock_manager_operations) from fl_xxx to lm_xxx
820 # see kernel commit 8fb47a4fbf858a164e973b8ea8ef5e83e61f2e50
822 AC_DEFUN([LC_LM_XXX_LOCK_MANAGER_OPS], [
823 LB_CHECK_COMPILE([if 'lock-manager' ops renamed to 'lm_xxx'],
824 lock_manager_ops_lm_xxx, [
825 #include <linux/fs.h>
827 struct lock_manager_operations lm_ops;
828 lm_ops.lm_compare_owner = NULL;
830 AC_DEFINE(HAVE_LM_XXX_LOCK_MANAGER_OPS, 1,
831 [lock-manager ops renamed to lm_xxx])
833 ]) # LC_LM_XXX_LOCK_MANAGER_OPS
838 # 3.1 kills inode->i_alloc_sem, use i_dio_count and inode_dio_wait
840 # see kernel commit bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3
842 AC_DEFUN([LC_INODE_DIO_WAIT], [
843 LB_CHECK_COMPILE([if 'inode->i_alloc_sem' is killed and use inode_dio_wait],
845 #include <linux/fs.h>
847 inode_dio_wait((struct inode *)0);
849 AC_DEFINE(HAVE_INODE_DIO_WAIT, 1,
850 [inode->i_alloc_sem is killed and use inode_dio_wait])
852 ]) # LC_INODE_DIO_WAIT
857 # 3.1 adds get_acl method to inode_operations to read ACL from disk.
858 # see kernel commit 4e34e719e457f2e031297175410fc0bd4016a085
860 AC_DEFUN([LC_IOP_GET_ACL], [
861 LB_CHECK_COMPILE([if 'inode_operations' has '.get_acl' member function],
863 #include <linux/fs.h>
865 struct inode_operations iop;
868 AC_DEFINE(HAVE_IOP_GET_ACL, 1,
869 [inode_operations has .get_acl member function])
874 # LC_FILE_LLSEEK_SIZE
876 # 3.1 introduced generic_file_llseek_size()
878 AC_DEFUN([LC_FILE_LLSEEK_SIZE], [
879 LB_CHECK_EXPORT([generic_file_llseek_size], [fs/read_write.c],
880 [AC_DEFINE(HAVE_FILE_LLSEEK_SIZE, 1,
881 [generic_file_llseek_size is exported by the kernel])])
882 ]) # LC_FILE_LLSEEK_SIZE
885 # LC_RADIX_EXCEPTION_ENTRY
886 # 3.1 adds radix_tree_exception_entry.
888 AC_DEFUN([LC_RADIX_EXCEPTION_ENTRY], [
889 LB_CHECK_COMPILE([radix_tree_exceptional_entry exist],
890 radix_tree_exceptional_entry, [
891 #include <linux/radix-tree.h>
893 radix_tree_exceptional_entry(NULL);
895 AC_DEFINE(HAVE_RADIX_EXCEPTION_ENTRY, 1,
896 [radix_tree_exceptional_entry exist])
898 ]) # LC_RADIX_EXCEPTION_ENTRY
901 # LC_HAVE_VOID_MAKE_REQUEST_FN
903 # 3.2 request_queue.make_request_fn defined as function returns with void
904 # see kernel commit 5a7bbad27a410350e64a2d7f5ec18fc73836c14f
906 AC_DEFUN([LC_HAVE_VOID_MAKE_REQUEST_FN], [
907 LB_CHECK_COMPILE([if 'request_queue.make_request_fn' returns void but not int],
908 make_request_fn_void, [
909 #include <linux/blkdev.h>
912 make_request_fn *mrf;
913 ret = mrf(NULL, NULL);
915 AC_DEFINE(HAVE_VOID_MAKE_REQUEST_FN, 1,
916 [request_queue.make_request_fn returns void but not int])
918 ]) # LC_HAVE_VOID_MAKE_REQUEST_FN
921 # LC_HAVE_PROTECT_I_NLINK
923 # 3.2 protects inode->i_nlink from direct modification
924 # see kernel commit a78ef704a8dd430225955f0709b22d4a6ba21deb
925 # at the same time adds set_nlink(), so checks set_nlink() for it.
927 AC_DEFUN([LC_HAVE_PROTECT_I_NLINK], [
928 LB_CHECK_COMPILE([if 'inode->i_nlink' is protected from direct modification],
929 inode_i_nlink_protected, [
930 #include <linux/fs.h>
935 AC_DEFINE(HAVE_PROTECT_I_NLINK, 1,
936 [inode->i_nlink is protected from direct modification])
938 ]) # LC_HAVE_PROTECT_I_NLINK
941 # 2.6.39 security_inode_init_security takes a 'struct qstr' parameter
943 # 3.2 security_inode_init_security takes a callback to set xattrs
945 AC_DEFUN([LC_HAVE_SECURITY_IINITSEC], [
946 LB_CHECK_COMPILE([if security_inode_init_security takes a callback],
947 security_inode_init_security_callback, [
948 #include <linux/security.h>
950 security_inode_init_security(NULL, NULL, NULL, (const initxattrs)NULL, NULL);
952 AC_DEFINE(HAVE_SECURITY_IINITSEC_CALLBACK, 1,
953 [security_inode_init_security takes a callback to set xattrs])
955 LB_CHECK_COMPILE([if security_inode_init_security takes a 'struct qstr' parameter],
956 security_inode_init_security_qstr, [
957 #include <linux/security.h>
959 security_inode_init_security(NULL, NULL, (struct qstr *)NULL, NULL, NULL, NULL);
961 AC_DEFINE(HAVE_SECURITY_IINITSEC_QSTR, 1,
962 [security_inode_init_security takes a 'struct qstr' parameter])
965 ]) # LC_HAVE_SECURITY_IINITSEC
968 # LC_HAVE_MIGRATE_HEADER
970 # 3.3 introduces migrate_mode.h and migratepage has 4 args
972 AC_DEFUN([LC_HAVE_MIGRATE_HEADER], [
973 LB_CHECK_FILE([$LINUX/include/linux/migrate.h], [
974 AC_DEFINE(HAVE_MIGRATE_H, 1,
975 [kernel has include/linux/migrate.h])
977 LB_CHECK_FILE([$LINUX/include/linux/migrate_mode.h], [
978 AC_DEFINE(HAVE_MIGRATE_MODE_H, 1,
979 [kernel has include/linux/migrate_mode.h])
982 ]) # LC_HAVE_MIGRATE_HEADER
985 # LC_MIGRATEPAGE_4ARGS
987 AC_DEFUN([LC_MIGRATEPAGE_4ARGS], [
988 LB_CHECK_COMPILE([if 'address_space_operations.migratepage' has 4 args],
989 address_space_ops_migratepage_4args, [
990 #include <linux/fs.h>
991 #ifdef HAVE_MIGRATE_H
992 #include <linux/migrate.h>
993 #elif defined(HAVE_MIGRATE_MODE_H)
994 #include <linux/migrate_mode.h>
997 struct address_space_operations aops;
998 aops.migratepage(NULL, NULL, NULL, MIGRATE_ASYNC);
1000 AC_DEFINE(HAVE_MIGRATEPAGE_4ARGS, 1,
1001 [address_space_operations.migratepage has 4 args])
1003 ]) # LC_MIGRATEPAGE_4ARGS
1006 # LC_SUPEROPS_USE_DENTRY
1008 # 3.3 switchs super_operations to use dentry as parameter (but not vfsmount)
1009 # see kernel commit 34c80b1d93e6e20ca9dea0baf583a5b5510d92d4
1011 AC_DEFUN([LC_SUPEROPS_USE_DENTRY], [
1012 tmp_flags="$EXTRA_KCFLAGS"
1013 EXTRA_KCFLAGS="-Werror"
1014 LB_CHECK_COMPILE([if 'super_operations' use 'dentry' as parameter],
1016 #include <linux/fs.h>
1017 int show_options(struct seq_file *seq, struct dentry *root) {
1021 struct super_operations ops;
1022 ops.show_options = show_options;
1024 AC_DEFINE(HAVE_SUPEROPS_USE_DENTRY, 1,
1025 [super_operations use dentry as parameter])
1027 EXTRA_KCFLAGS="$tmp_flags"
1028 ]) # LC_SUPEROPS_USE_DENTRY
1031 # LC_INODEOPS_USE_UMODE_T
1033 # 3.3 switchs inode_operations to use umode_t as parameter (but not int)
1034 # see kernel commit 1a67aafb5f72a436ca044293309fa7e6351d6a35
1036 AC_DEFUN([LC_INODEOPS_USE_UMODE_T], [
1037 tmp_flags="$EXTRA_KCFLAGS"
1038 EXTRA_KCFLAGS="-Werror"
1039 LB_CHECK_COMPILE([if 'inode_operations' use 'umode_t' as parameter],
1040 inode_ops_umode_t, [
1041 #include <linux/fs.h>
1042 #include <linux/types.h>
1043 int my_mknod(struct inode *dir, struct dentry *dchild,
1044 umode_t mode, dev_t dev)
1049 struct inode_operations ops;
1050 ops.mknod = my_mknod;
1052 AC_DEFINE(HAVE_INODEOPS_USE_UMODE_T, 1,
1053 [inode_operations use umode_t as parameter])
1055 EXTRA_KCFLAGS="$tmp_flags"
1056 ]) # LC_INODEOPS_USE_UMODE_T
1059 # LC_KMAP_ATOMIC_HAS_1ARG
1061 # 3.4 kmap_atomic removes second argument
1062 # see kernel commit 1ec9c5ddc17aa398f05646abfcbaf315b544e62f
1064 AC_DEFUN([LC_KMAP_ATOMIC_HAS_1ARG], [
1065 LB_CHECK_COMPILE([if 'kmap_atomic' has only 1 argument],
1067 #include <linux/highmem.h>
1071 AC_DEFINE(HAVE_KMAP_ATOMIC_HAS_1ARG, 1,
1072 [have kmap_atomic has only 1 argument])
1074 ]) # LC_KMAP_ATOMIC_HAS_1ARG
1077 # LC_HAVE_D_MAKE_ROOT
1079 # 3.4 converts d_alloc_root to d_make_root
1080 # see kernel commit 32991ab305ace7017c62f8eecbe5eb36dc32e13b
1082 AC_DEFUN([LC_HAVE_D_MAKE_ROOT], [
1083 LB_CHECK_COMPILE([if have 'd_make_root'],
1085 #include <linux/fs.h>
1087 d_make_root((struct inode *)NULL);
1089 AC_DEFINE(HAVE_D_MAKE_ROOT, 1,
1092 ]) # LC_HAVE_D_MAKE_ROOT
1095 # LC_HAVE_CACHE_REGISTER
1097 # 3.4 cache_register/cache_unregister are removed
1098 # see kernel commit 2c5f846747526e2b83c5f1b8e69016be0e2e87c0
1099 # Note, since 2.6.37 cache_register_net/cache_unregister_net
1100 # are defined, but not exported.
1101 # 3.3 cache_register_net/cache_unregister_net are
1102 # exported and replacing cache_register/cache_unregister in 3.4
1104 AC_DEFUN([LC_HAVE_CACHE_REGISTER], [
1105 LB_CHECK_COMPILE([if have 'cache_register'],
1107 #include <linux/sunrpc/cache.h>
1109 cache_register(NULL);
1111 AC_DEFINE(HAVE_CACHE_REGISTER, 1,
1112 [have cache_register])
1114 ]) # LC_HAVE_CACHE_REGISTER
1117 # LC_HAVE_CLEAR_INODE
1119 # 3.5 renames end_writeback() back to clear_inode()...
1120 # see kernel commit dbd5768f87ff6fb0a4fe09c4d7b6c4a24de99430
1122 AC_DEFUN([LC_HAVE_CLEAR_INODE], [
1123 LB_CHECK_COMPILE([if have 'clear_inode'],
1125 #include <linux/fs.h>
1127 clear_inode((struct inode *)NULL);
1129 AC_DEFINE(HAVE_CLEAR_INODE, 1,
1132 ]) # LC_HAVE_CLEAR_INODE
1135 # LC_HAVE_ENCODE_FH_PARENT
1137 # 3.5 encode_fh has parent inode passed in directly
1138 # see kernel commit b0b0382b
1140 AC_DEFUN([LC_HAVE_ENCODE_FH_PARENT], [
1141 tmp_flags="$EXTRA_KCFLAGS"
1142 EXTRA_KCFLAGS="-Werror"
1143 LB_CHECK_COMPILE([if 'encode_fh' have parent inode as parameter],
1144 encode_fh_parent_inode, [
1145 #include <linux/exportfs.h>
1146 #include <linux/fs.h>
1147 #include <linux/types.h>
1148 int ll_encode_fh(struct inode *i, __u32 *a, int *b, struct inode *p)
1153 struct export_operations exp_op;
1154 exp_op.encode_fh = ll_encode_fh;
1156 AC_DEFINE(HAVE_ENCODE_FH_PARENT, 1,
1157 [have parent inode as parameter])
1159 EXTRA_KCFLAGS="$tmp_flags"
1160 ]) # LC_HAVE_ENCODE_FH_PARENT
1163 # LC_FILE_LLSEEK_SIZE_5ARG
1165 # 3.5 has generic_file_llseek_size with 5 args
1167 AC_DEFUN([LC_FILE_LLSEEK_SIZE_5ARG], [
1168 LB_CHECK_COMPILE([if Linux kernel has 'generic_file_llseek_size' with 5 args],
1169 generic_file_llseek_size_5args, [
1170 #include <linux/fs.h>
1172 generic_file_llseek_size(NULL, 0, 0, 0, 0);
1174 AC_DEFINE(HAVE_FILE_LLSEEK_SIZE_5ARGS, 1,
1175 [kernel has generic_file_llseek_size with 5 args])
1177 ]) # LC_FILE_LLSEEK_SIZE_5ARG
1180 # LC_LLITE_DATA_IS_LIST
1182 # 3.6 switch i_dentry/d_alias from list to hlist
1184 # In the upstream kernels d_alias first changes
1185 # to a hlist and then in later version, 3.11, gets
1186 # moved to the union d_u. Due to some distros having
1187 # d_alias in the d_u union as a struct list, which
1188 # has never existed upstream stream, we can't test
1189 # if d_alias is a list or hlist directly. If ever
1190 # i_dentry and d_alias even up different combos then
1191 # the build will fail. In that case then we will need
1192 # to separate out the i_dentry and d_alias test below.
1194 AC_DEFUN([LC_DATA_FOR_LLITE_IS_LIST], [
1195 tmp_flags="$EXTRA_KCFLAGS"
1196 EXTRA_KCFLAGS="-Werror"
1197 LB_CHECK_COMPILE([if 'i_dentry/d_alias' uses 'list'],
1198 i_dentry_d_alias_list, [
1199 #include <linux/fs.h>
1202 INIT_LIST_HEAD(&inode.i_dentry);
1204 AC_DEFINE(DATA_FOR_LLITE_IS_LIST, 1,
1205 [both i_dentry/d_alias uses list])
1207 EXTRA_KCFLAGS="$tmp_flags"
1208 ]) # LC_DATA_FOR_LLITE_IS_LIST
1211 # LC_DENTRY_OPEN_USE_PATH
1213 # 3.6 dentry_open uses struct path as first argument
1214 # see kernel commit 765927b2
1216 AC_DEFUN([LC_DENTRY_OPEN_USE_PATH], [
1217 tmp_flags="$EXTRA_KCFLAGS"
1218 EXTRA_KCFLAGS="-Werror"
1219 LB_CHECK_COMPILE([if 'dentry_open' uses 'struct path' as first argument],
1221 #include <linux/fs.h>
1222 #include <linux/path.h>
1225 dentry_open(&path, 0, NULL);
1227 AC_DEFINE(HAVE_DENTRY_OPEN_USE_PATH, 1,
1228 [dentry_open uses struct path as first argument])
1230 EXTRA_KCFLAGS="$tmp_flags"
1231 ]) # LC_DENTRY_OPEN_USE_PATH
1234 # LC_HAVE_IOP_ATOMIC_OPEN
1236 # 3.6 vfs adds iop->atomic_open
1238 AC_DEFUN([LC_HAVE_IOP_ATOMIC_OPEN], [
1239 LB_CHECK_COMPILE([if 'iop' has 'atomic_open'],
1240 inode_ops_atomic_open, [
1241 #include <linux/fs.h>
1243 struct inode_operations iop;
1244 iop.atomic_open = NULL;
1246 AC_DEFINE(HAVE_IOP_ATOMIC_OPEN, 1,
1247 [have iop atomic_open])
1249 ]) # LC_HAVE_IOP_ATOMIC_OPEN
1252 # LC_HAVE_SB_START_WRITE
1254 # RHEL6 2.6.32, 3.6 or newer support wrapped FS freeze functions
1256 AC_DEFUN([LC_HAVE_SB_START_WRITE], [
1257 LB_CHECK_COMPILE([if kernel supports wrapped FS freeze functions],
1259 #include <linux/fs.h>
1261 sb_start_write(NULL);
1263 AC_DEFINE(HAVE_SB_START_WRITE, 1,
1264 [kernel supports wrapped FS freeze functions])
1266 ]) # LC_HAVE_SB_START_WRITE
1269 # LC_HAVE_POSIXACL_USER_NS
1271 # 3.7 posix_acl_{to,from}_xattr take struct user_namespace
1273 AC_DEFUN([LC_HAVE_POSIXACL_USER_NS], [
1274 LB_CHECK_COMPILE([if 'posix_acl_to_xattr' takes 'struct user_namespace'],
1275 posix_acl_to_xattr_user_namespace, [
1276 #include <linux/fs.h>
1277 #include <linux/posix_acl_xattr.h>
1279 posix_acl_to_xattr((struct user_namespace *)NULL, NULL, NULL, 0);
1281 AC_DEFINE(HAVE_POSIXACL_USER_NS, 1,
1282 [posix_acl_to_xattr takes struct user_namespace])
1284 ]) # LC_HAVE_POSIXACL_USER_NS
1287 # LC_HAVE_FILE_F_INODE
1289 # 3.8 struct file has new member f_inode
1291 AC_DEFUN([LC_HAVE_FILE_F_INODE], [
1292 LB_CHECK_COMPILE([if 'struct file' has member 'f_inode'],
1294 #include <linux/fs.h>
1296 ((struct file *)0)->f_inode = NULL;
1298 AC_DEFINE(HAVE_FILE_F_INODE, 1,
1299 [struct file has member f_inode])
1301 ]) # LC_HAVE_FILE_F_INODE
1304 # LC_HAVE_FILE_INODE
1306 # 3.8 has introduced inline function file_inode
1308 AC_DEFUN([LC_HAVE_FILE_INODE], [
1309 LB_CHECK_COMPILE([if file_inode() exists],
1311 #include <linux/fs.h>
1315 AC_DEFINE(HAVE_FILE_INODE, 1,
1316 [file_inode() has been defined])
1318 ]) # LC_HAVE_FILE_INODE
1321 # LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
1323 AC_DEFUN([LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS], [
1324 LB_CHECK_COMPILE([if 'sunrpc_cache_pipe_upcall' takes 3 args],
1325 sunrpc_cache_pipe_upcall_3args, [
1326 #include <linux/sunrpc/cache.h>
1328 sunrpc_cache_pipe_upcall(NULL, NULL, NULL);
1330 AC_DEFINE(HAVE_SUNRPC_UPCALL_HAS_3ARGS, 1,
1331 [sunrpc_cache_pipe_upcall takes 3 args])
1333 ]) # LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
1336 # LC_HAVE_HLIST_FOR_EACH_3ARG
1338 # 3.9 uses hlist_for_each_entry with 3 args
1339 # b67bfe0d42cac56c512dd5da4b1b347a23f4b70a
1341 AC_DEFUN([LC_HAVE_HLIST_FOR_EACH_3ARG], [
1342 LB_CHECK_COMPILE([if 'hlist_for_each_entry' has 3 args],
1343 hlist_for_each_entry_3args, [
1344 #include <linux/list.h>
1345 #include <linux/fs.h>
1347 struct hlist_head *head = NULL;
1348 struct inode *inode;
1350 hlist_for_each_entry(inode, head, i_hash) {
1354 AC_DEFINE(HAVE_HLIST_FOR_EACH_3ARG, 1,
1355 [hlist_for_each_entry has 3 args])
1357 ]) # LC_HAVE_HLIST_FOR_EACH_3ARG
1360 # LC_HAVE_BIO_END_SECTOR
1362 # 3.9 introduces bio_end_sector macro
1363 # f73a1c7d117d07a96d89475066188a2b79e53c48
1365 AC_DEFUN([LC_HAVE_BIO_END_SECTOR], [
1366 LB_CHECK_COMPILE([if 'bio_end_sector' is defined],
1368 #include <linux/bio.h>
1372 bio_end_sector(&bio);
1374 AC_DEFINE(HAVE_BIO_END_SECTOR, 1,
1375 [bio_end_sector is defined])
1377 ]) # LC_HAVE_BIO_END_SECTOR
1380 # LC_HAVE_REMOVE_PROC_SUBTREE
1382 # 3.10 introduced remove_proc_subtree
1384 AC_DEFUN([LC_HAVE_REMOVE_PROC_SUBTREE], [
1385 LB_CHECK_COMPILE([if 'remove_proc_subtree' is defined],
1386 remove_proc_subtree, [
1387 #include <linux/proc_fs.h>
1389 remove_proc_subtree(NULL, NULL);
1391 AC_DEFINE(HAVE_REMOVE_PROC_SUBTREE, 1,
1392 [remove_proc_subtree is defined])
1394 ]) # LC_HAVE_REMOVE_PROC_SUBTREE
1397 # LC_HAVE_PROC_REMOVE
1399 # 3.10 introduced proc_remove
1401 AC_DEFUN([LC_HAVE_PROC_REMOVE], [
1402 LB_CHECK_COMPILE([if 'proc_remove' is defined],
1404 #include <linux/proc_fs.h>
1408 AC_DEFINE(HAVE_PROC_REMOVE, 1,
1409 [proc_remove is defined])
1411 ]) # LC_HAVE_PROC_REMOVE
1414 # LC_BLKDEV_RELEASE_RETURN_INT
1416 # 3.10 release for block device doesn't return int
1418 AC_DEFUN([LC_BLKDEV_RELEASE_RETURN_INT], [
1419 LB_CHECK_COMPILE([if 'block_device_operations' release returns 'int'],
1420 block_device_ops_release_return_int, [
1421 #include <linux/blkdev.h>
1423 struct block_device_operations fops;
1424 int i __attribute__ ((unused));
1426 i = fops.release(NULL, 0);
1428 AC_DEFINE(HAVE_BLKDEV_RELEASE_RETURN_INT, 1,
1429 [block device release returns int])
1431 ]) # LC_BLKDEV_RELEASE_RETURN_INT
1434 # LC_INVALIDATE_RANGE
1436 # 3.11 invalidatepage requires the length of the range to invalidate
1438 AC_DEFUN([LC_INVALIDATE_RANGE], [
1439 LB_CHECK_COMPILE([if 'address_space_operations.invalidatepage' requires 3 arguments],
1440 address_space_ops_invalidatepage_3args, [
1441 #include <linux/fs.h>
1443 struct address_space_operations a_ops;
1444 a_ops.invalidatepage(NULL, 0, 0);
1446 AC_DEFINE(HAVE_INVALIDATE_RANGE, 1,
1447 [address_space_operations.invalidatepage needs 3 arguments])
1449 ]) # LC_INVALIDATE_RANGE
1452 # LC_HAVE_DIR_CONTEXT
1454 # 3.11 readdir now takes the new struct dir_context
1456 AC_DEFUN([LC_HAVE_DIR_CONTEXT], [
1457 LB_CHECK_COMPILE([if 'dir_context' exist],
1459 #include <linux/fs.h>
1461 struct dir_context ctx;
1464 AC_DEFINE(HAVE_DIR_CONTEXT, 1,
1465 [dir_context exist])
1467 ]) # LC_HAVE_DIR_CONTEXT
1470 # LC_D_COMPARE_5ARGS
1472 # 3.11 dentry_operations.d_compare() taken 5 arguments.
1474 AC_DEFUN([LC_D_COMPARE_5ARGS], [
1475 LB_CHECK_COMPILE([if 'd_compare' taken 5 arguments],
1477 #include <linux/dcache.h>
1479 ((struct dentry_operations*)0)->d_compare(NULL,NULL,0,NULL,NULL);
1481 AC_DEFINE(HAVE_D_COMPARE_5ARGS, 1,
1482 [d_compare need 5 arguments])
1484 ]) # LC_D_COMPARE_5ARGS
1489 # 3.11 need to access d_count to get dentry reference count
1491 AC_DEFUN([LC_HAVE_DCOUNT], [
1492 LB_CHECK_COMPILE([if 'd_count' exist],
1494 #include <linux/dcache.h>
1499 AC_DEFINE(HAVE_D_COUNT, 1,
1505 # LC_OLDSIZE_TRUNCATE_PAGECACHE
1507 # 3.12 truncate_pagecache without oldsize parameter
1509 AC_DEFUN([LC_OLDSIZE_TRUNCATE_PAGECACHE], [
1510 LB_CHECK_COMPILE([if 'truncate_pagecache' with 'old_size' parameter],
1511 truncate_pagecache_old_size, [
1512 #include <linux/mm.h>
1514 truncate_pagecache(NULL, 0, 0);
1516 AC_DEFINE(HAVE_OLDSIZE_TRUNCATE_PAGECACHE, 1,
1519 ]) # LC_OLDSIZE_TRUNCATE_PAGECACHE
1522 # LC_HAVE_DENTRY_D_U_D_ALIAS
1524 # 3.11 kernel moved d_alias to the union d_u in struct dentry
1526 # Some distros move d_alias to d_u but it is still a struct list
1528 AC_DEFUN([LC_HAVE_DENTRY_D_U_D_ALIAS], [
1529 AS_IF([test "x$lb_cv_compile_i_dentry_d_alias_list" = xyes], [
1530 LB_CHECK_COMPILE([if list 'dentry.d_u.d_alias' exist],
1532 #include <linux/list.h>
1533 #include <linux/dcache.h>
1536 INIT_LIST_HEAD(&de.d_u.d_alias);
1538 AC_DEFINE(HAVE_DENTRY_D_U_D_ALIAS, 1,
1539 [list dentry.d_u.d_alias exist])
1542 LB_CHECK_COMPILE([if hlist 'dentry.d_u.d_alias' exist],
1544 #include <linux/list.h>
1545 #include <linux/dcache.h>
1548 INIT_HLIST_NODE(&de.d_u.d_alias);
1550 AC_DEFINE(HAVE_DENTRY_D_U_D_ALIAS, 1,
1551 [hlist dentry.d_u.d_alias exist])
1554 ]) # LC_HAVE_DENTRY_D_U_D_ALIAS
1557 # LC_HAVE_DENTRY_D_CHILD
1559 # 3.11 kernel d_child has been moved out of the union d_u
1562 AC_DEFUN([LC_HAVE_DENTRY_D_CHILD], [
1563 LB_CHECK_COMPILE([if 'dentry.d_child' exist],
1565 #include <linux/list.h>
1566 #include <linux/dcache.h>
1569 INIT_LIST_HEAD(&de.d_child);
1571 AC_DEFINE(HAVE_DENTRY_D_CHILD, 1,
1572 [dentry.d_child exist])
1574 ]) # LC_HAVE_DENTRY_D_CHILD
1579 # 3.12 ki_left removed from struct kiocb
1581 AC_DEFUN([LC_KIOCB_KI_LEFT], [
1582 LB_CHECK_COMPILE([if 'struct kiocb' with 'ki_left' member],
1584 #include <linux/aio.h>
1586 ((struct kiocb*)0)->ki_left = 0;
1588 AC_DEFINE(HAVE_KIOCB_KI_LEFT, 1,
1591 ]) # LC_KIOCB_KI_LEFT
1594 # LC_VFS_RENAME_5ARGS
1596 # 3.13 has vfs_rename with 5 args
1598 AC_DEFUN([LC_VFS_RENAME_5ARGS], [
1599 LB_CHECK_COMPILE([if Linux kernel has 'vfs_rename' with 5 args],
1601 #include <linux/fs.h>
1603 vfs_rename(NULL, NULL, NULL, NULL, NULL);
1605 AC_DEFINE(HAVE_VFS_RENAME_5ARGS, 1,
1606 [kernel has vfs_rename with 5 args])
1608 ]) # LC_VFS_RENAME_5ARGS
1611 # LC_VFS_UNLINK_3ARGS
1613 # 3.13 has vfs_unlink with 3 args
1615 AC_DEFUN([LC_VFS_UNLINK_3ARGS], [
1616 LB_CHECK_COMPILE([if Linux kernel has 'vfs_unlink' with 3 args],
1618 #include <linux/fs.h>
1620 vfs_unlink(NULL, NULL, NULL);
1622 AC_DEFINE(HAVE_VFS_UNLINK_3ARGS, 1,
1623 [kernel has vfs_unlink with 3 args])
1625 ]) # LC_VFS_UNLINK_3ARGS
1630 # 3.14 move some of its data in struct bio into the new
1633 AC_DEFUN([LC_HAVE_BVEC_ITER], [
1634 LB_CHECK_COMPILE([if Linux kernel has struct bvec_iter],
1636 #include <linux/bio.h>
1638 struct bvec_iter iter;
1639 iter.bi_bvec_done = 0;
1641 AC_DEFINE(HAVE_BVEC_ITER, 1,
1642 [kernel has struct bvec_iter])
1644 ]) # LC_HAVE_BVEC_ITER
1647 # LC_HAVE_TRUNCATE_IPAGE_FINAL
1649 # 3.14 bring truncate_inode_pages_final for evict_inode
1651 AC_DEFUN([LC_HAVE_TRUNCATE_IPAGES_FINAL], [
1652 LB_CHECK_COMPILE([if Linux kernel has truncate_inode_pages_final],
1653 truncate_ipages_final, [
1654 #include <linux/mm.h>
1656 truncate_inode_pages_final(NULL);
1658 AC_DEFINE(HAVE_TRUNCATE_INODE_PAGES_FINAL, 1,
1659 [kernel has truncate_inode_pages_final])
1661 ]) # LC_HAVE_TRUNCATE_IPAGES_FINAL
1664 # LC_VFS_RENAME_6ARGS
1666 # 3.15 has vfs_rename with 6 args
1668 AC_DEFUN([LC_VFS_RENAME_6ARGS], [
1669 LB_CHECK_COMPILE([if Linux kernel has 'vfs_rename' with 6 args],
1671 #include <linux/fs.h>
1673 vfs_rename(NULL, NULL, NULL, NULL, NULL, NULL);
1675 AC_DEFINE(HAVE_VFS_RENAME_6ARGS, 1,
1676 [kernel has vfs_rename with 6 args])
1678 ]) # LC_VFS_RENAME_6ARGS
1681 # LC_DIRECTIO_USE_ITER
1683 # 3.16 kernel changes direct IO to use iov_iter
1685 AC_DEFUN([LC_DIRECTIO_USE_ITER], [
1686 LB_CHECK_COMPILE([if direct IO uses iov_iter],
1688 #include <linux/fs.h>
1690 struct address_space_operations ops;
1691 struct iov_iter *iter = NULL;
1694 ops.direct_IO(0, NULL, iter, offset);
1696 AC_DEFINE(HAVE_DIRECTIO_ITER, 1,
1697 [direct IO uses iov_iter])
1699 ]) # LC_DIRECTIO_USE_ITER
1702 # LC_HAVE_IOV_ITER_INIT_DIRECTION
1705 # 3.16 linux commit 71d8e532b1549a478e6a6a8a44f309d050294d00
1706 # changed iov_iter_init api to start accepting a tag
1707 # that defines if its a read or write operation
1709 AC_DEFUN([LC_HAVE_IOV_ITER_INIT_DIRECTION], [
1710 tmp_flags="$EXTRA_KCFLAGS"
1711 EXTRA_KCFLAGS="-Werror"
1712 LB_CHECK_COMPILE([if 'iov_iter_init' takes a tag],
1714 #include <linux/uio.h>
1715 #include <linux/fs.h>
1717 const struct iovec *iov = NULL;
1719 iov_iter_init(NULL, READ, iov, 1, 0);
1721 AC_DEFINE(HAVE_IOV_ITER_INIT_DIRECTION, 1,
1722 [iov_iter_init handles directional tag])
1724 EXTRA_KCFLAGS="$tmp_flags"
1725 ]) # LC_HAVE_IOV_ITER_INIT_DIRECTION
1728 # LC_HAVE_IOV_ITER_TRUNCATE
1731 # 3.16 introduces a new API iov_iter_truncate()
1733 AC_DEFUN([LC_HAVE_IOV_ITER_TRUNCATE], [
1734 tmp_flags="$EXTRA_KCFLAGS"
1735 EXTRA_KCFLAGS="-Werror"
1736 LB_CHECK_COMPILE([if 'iov_iter_truncate' exists ],
1738 #include <linux/uio.h>
1739 #include <linux/fs.h>
1741 struct iov_iter *i = NULL;
1743 iov_iter_truncate(i, 0);
1745 AC_DEFINE(HAVE_IOV_ITER_TRUNCATE, 1, [iov_iter_truncate exists])
1747 EXTRA_KCFLAGS="$tmp_flags"
1748 ]) # LC_HAVE_IOV_ITER_TRUNCATE
1751 # LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
1753 # 3.16 introduces [read|write]_iter to struct file_operations
1755 AC_DEFUN([LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER], [
1756 LB_CHECK_COMPILE([if 'file_operations.[read|write]_iter' exist],
1757 file_function_iter, [
1758 #include <linux/fs.h>
1760 ((struct file_operations *)NULL)->read_iter(NULL, NULL);
1761 ((struct file_operations *)NULL)->write_iter(NULL, NULL);
1763 AC_DEFINE(HAVE_FILE_OPERATIONS_READ_WRITE_ITER, 1,
1764 [file_operations.[read|write]_iter functions exist])
1766 ]) # LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
1771 # 3.17 replaces key_type::match with match_preparse
1772 # and has new struct key_match_data
1774 AC_DEFUN([LC_KEY_MATCH_DATA], [
1775 LB_CHECK_COMPILE([if struct key_match field exist],
1777 #include <linux/key-type.h>
1779 struct key_match_data data;
1781 AC_DEFINE(HAVE_KEY_MATCH_DATA, 1,
1782 [struct key_match_data exist])
1784 ]) # LC_KEY_MATCH_DATA
1787 # LC_NFS_FILLDIR_USE_CTX
1789 # 3.18 kernel moved from void cookie to struct dir_context
1791 AC_DEFUN([LC_NFS_FILLDIR_USE_CTX], [
1792 tmp_flags="$EXTRA_KCFLAGS"
1793 EXTRA_KCFLAGS="-Werror"
1794 LB_CHECK_COMPILE([if filldir_t uses struct dir_context],
1796 #include <linux/fs.h>
1798 int filldir(struct dir_context *ctx, const char* name,
1799 int i, loff_t off, u64 tmp, unsigned temp)
1804 struct dir_context ctx = {
1808 ctx.actor(NULL, "test", 0, (loff_t) 0, 0, 0);
1810 AC_DEFINE(HAVE_FILLDIR_USE_CTX, 1,
1811 [filldir_t needs struct dir_context as argument])
1813 EXTRA_KCFLAGS="$tmp_flags"
1814 ]) # LC_NFS_FILLDIR_USE_CTX
1817 # LC_PERCPU_COUNTER_INIT
1819 # 3.18 For kernels 3.18 and after percpu_counter_init starts
1820 # to pass a GFP_* memory allocation flag for internal
1821 # memory allocation purposes.
1823 AC_DEFUN([LC_PERCPU_COUNTER_INIT], [
1824 LB_CHECK_COMPILE([if percpu_counter_init uses GFP_* flag as argument],
1825 percpu_counter_init, [
1826 #include <linux/percpu_counter.h>
1828 percpu_counter_init(NULL, 0, GFP_KERNEL);
1830 AC_DEFINE(HAVE_PERCPU_COUNTER_INIT_GFP_FLAG, 1,
1831 [percpu_counter_init uses GFP_* flag])
1833 ]) # LC_PERCPU_COUNTER_INIT
1836 # LC_KIOCB_HAS_NBYTES
1838 # 3.19 kernel removed ki_nbytes from struct kiocb
1840 AC_DEFUN([LC_KIOCB_HAS_NBYTES], [
1841 LB_CHECK_COMPILE([if struct kiocb has ki_nbytes field],
1843 #include <linux/fs.h>
1849 AC_DEFINE(HAVE_KI_NBYTES, 1, [ki_nbytes field exist])
1851 ]) # LC_KIOCB_HAS_NBYTES
1854 # LC_HAVE_DQUOT_QC_DQBLK
1856 # 3.19 has quotactl_ops->[sg]et_dqblk that take struct kqid and qc_dqblk
1857 # Added in commit 14bf61ffe
1859 AC_DEFUN([LC_HAVE_DQUOT_QC_DQBLK], [
1860 tmp_flags="$EXTRA_KCFLAGS"
1861 EXTRA_KCFLAGS="-Werror"
1862 LB_CHECK_COMPILE([if 'quotactl_ops.set_dqblk' takes struct qc_dqblk],
1864 #include <linux/fs.h>
1865 #include <linux/quota.h>
1867 ((struct quotactl_ops *)0)->set_dqblk(NULL, *((struct kqid*)0), (struct qc_dqblk*)0);
1869 AC_DEFINE(HAVE_DQUOT_QC_DQBLK, 1,
1870 [quotactl_ops.set_dqblk takes struct qc_dqblk])
1871 AC_DEFINE(HAVE_DQUOT_KQID, 1,
1872 [quotactl_ops.set_dqblk takes struct kqid])
1874 EXTRA_KCFLAGS="$tmp_flags"
1875 ]) # LC_HAVE_DQUOT_QC_DQBLK
1878 # LC_BACKING_DEV_INFO_REMOVAL
1880 # 3.20 kernel removed backing_dev_info from address_space
1882 AC_DEFUN([LC_BACKING_DEV_INFO_REMOVAL], [
1883 LB_CHECK_COMPILE([if struct address_space has backing_dev_info],
1885 #include <linux/fs.h>
1887 struct address_space mapping;
1889 mapping.backing_dev_info = NULL;
1891 AC_DEFINE(HAVE_BACKING_DEV_INFO, 1, [backing_dev_info exist])
1893 ]) # LC_BACKING_DEV_INFO_REMOVAL
1896 # LC_HAVE_BDI_CAP_MAP_COPY
1898 # 3.20 removed mmap handling for backing devices since
1899 # it breaks on non-MMU systems. See kernel commit
1900 # b4caecd48005fbed3949dde6c1cb233142fd69e9
1902 AC_DEFUN([LC_HAVE_BDI_CAP_MAP_COPY], [
1903 LB_CHECK_COMPILE([if have 'BDI_CAP_MAP_COPY'],
1905 #include <linux/backing-dev.h>
1907 struct backing_dev_info info;
1909 info.capabilities = BDI_CAP_MAP_COPY;
1911 AC_DEFINE(HAVE_BDI_CAP_MAP_COPY, 1,
1912 [BDI_CAP_MAP_COPY exist])
1914 ]) # LC_HAVE_BDI_CAP_MAP_COPY
1917 # LC_CANCEL_DIRTY_PAGE
1919 # 4.0.0 kernel removed cancel_dirty_page
1921 AC_DEFUN([LC_CANCEL_DIRTY_PAGE], [
1922 LB_CHECK_COMPILE([if cancel_dirty_page still exist],
1923 cancel_dirty_page, [
1924 #include <linux/mm.h>
1926 cancel_dirty_page(NULL, PAGE_SIZE);
1928 AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
1929 [cancel_dirty_page is still available])
1931 ]) # LC_CANCEL_DIRTY_PAGE
1936 # 4.1 kernel has iov_iter_rw
1938 AC_DEFUN([LC_IOV_ITER_RW], [
1939 LB_CHECK_COMPILE([if iov_iter_rw exist],
1941 #include <linux/fs.h>
1942 #include <linux/uio.h>
1944 struct iov_iter *iter = NULL;
1948 AC_DEFINE(HAVE_IOV_ITER_RW, 1,
1949 [iov_iter_rw exist])
1954 # LC_HAVE_SYNC_READ_WRITE
1956 # 4.1 new_sync_[read|write] no longer exported
1958 AC_DEFUN([LC_HAVE_SYNC_READ_WRITE], [
1959 LB_CHECK_EXPORT([new_sync_read], [fs/read_write.c],
1960 [AC_DEFINE(HAVE_SYNC_READ_WRITE, 1,
1961 [new_sync_[read|write] is exported by the kernel])])
1962 ]) # LC_HAVE_SYNC_READ_WRITE
1965 # LC_NEW_CANCEL_DIRTY_PAGE
1967 # 4.2 kernel has new cancel_dirty_page
1969 AC_DEFUN([LC_NEW_CANCEL_DIRTY_PAGE], [
1970 LB_CHECK_COMPILE([if cancel_dirty_page with one argument exist],
1971 new_cancel_dirty_page, [
1972 #include <linux/mm.h>
1974 cancel_dirty_page(NULL);
1976 AC_DEFINE(HAVE_NEW_CANCEL_DIRTY_PAGE, 1,
1977 [cancel_dirty_page with one arguement is available])
1979 ]) # LC_NEW_CANCEL_DIRTY_PAGE
1982 # LC_SYMLINK_OPS_USE_NAMEIDATA
1984 # For the 4.2+ kernels the file system internal symlink api no
1985 # longer uses struct nameidata as a argument
1987 AC_DEFUN([LC_SYMLINK_OPS_USE_NAMEIDATA], [
1988 LB_CHECK_COMPILE([if symlink inode operations have struct nameidata argument],
1989 symlink_use_nameidata, [
1990 #include <linux/namei.h>
1991 #include <linux/fs.h>
1993 struct nameidata *nd = NULL;
1995 ((struct inode_operations *)0)->follow_link(NULL, nd);
1996 ((struct inode_operations *)0)->put_link(NULL, nd, NULL);
1998 AC_DEFINE(HAVE_SYMLINK_OPS_USE_NAMEIDATA, 1,
1999 [symlink inode operations need struct nameidata argument])
2001 ]) # LC_SYMLINK_OPS_USE_NAMEIDATA
2004 # LC_BIO_ENDIO_USES_ONE_ARG
2006 # 4.2 kernel bio_endio now only takes one argument
2008 AC_DEFUN([LC_BIO_ENDIO_USES_ONE_ARG], [
2009 LB_CHECK_COMPILE([if 'bio_endio' with one argument exist],
2011 #include <linux/bio.h>
2015 AC_DEFINE(HAVE_BIO_ENDIO_USES_ONE_ARG, 1,
2016 [bio_endio takes only one argument])
2018 ]) # LC_BIO_ENDIO_USES_ONE_ARG
2021 # LC_HAVE_LOOP_CTL_GET_FREE
2023 # 4.x kernel have moved userspace APIs to
2024 # the separate directory and all of them
2025 # support LOOP_CTL_GET_FREE
2027 AC_DEFUN([LC_HAVE_LOOP_CTL_GET_FREE], [
2028 LB_CHECK_FILE([$LINUX/include/linux/loop.h], [
2029 LB_CHECK_COMPILE([if have 'HAVE_LOOP_CTL_GET_FREE'],
2030 LOOP_CTL_GET_FREE, [
2031 #include <linux/loop.h>
2035 i = LOOP_CTL_GET_FREE;
2037 AC_DEFINE(HAVE_LOOP_CTL_GET_FREE, 1,
2038 [LOOP_CTL_GET_FREE exist])
2041 AC_DEFINE(HAVE_LOOP_CTL_GET_FREE, 1,
2042 [kernel has LOOP_CTL_GET_FREE])
2044 ]) # LC_HAVE_LOOP_CTL_GET_FREE
2047 # LC_HAVE_CACHE_HEAD_HLIST
2049 # 4.3 kernel swiched to hlist for cache_head
2051 AC_DEFUN([LC_HAVE_CACHE_HEAD_HLIST], [
2052 LB_CHECK_COMPILE([if 'struct cache_head' has 'cache_list' field],
2053 cache_head_has_hlist, [
2054 #include <linux/sunrpc/cache.h>
2056 do {} while(sizeof(((struct cache_head *)0)->cache_list));
2058 AC_DEFINE(HAVE_CACHE_HEAD_HLIST, 1,
2059 [cache_head has hlist cache_list])
2061 ]) # LC_HAVE_CACHE_HEAD_HLIST
2064 # LC_HAVE_LOCKS_LOCK_FILE_WAIT
2066 # 4.4 kernel have moved locks API users to
2067 # locks_lock_inode_wait()
2069 AC_DEFUN([LC_HAVE_LOCKS_LOCK_FILE_WAIT], [
2070 LB_CHECK_COMPILE([if 'locks_lock_file_wait' exists],
2071 locks_lock_file_wait, [
2072 #include <linux/fs.h>
2074 locks_lock_file_wait(NULL, NULL);
2076 AC_DEFINE(HAVE_LOCKS_LOCK_FILE_WAIT, 1,
2077 [kernel has locks_lock_file_wait])
2079 ]) # LC_HAVE_LOCKS_LOCK_FILE_WAIT
2082 # LC_HAVE_QC_MAKE_REQUEST_FN
2084 # 4.4 request_queue.make_request_fn defined as function returns with blk_qc_t
2085 # see kernel commit dece16353ef47d8d33f5302bc158072a9d65e26f
2087 AC_DEFUN([LC_HAVE_QC_MAKE_REQUEST_FN], [
2088 LB_CHECK_COMPILE([if 'request_queue.make_request_fn' returns blk_qc_t],
2089 make_request_fn_blk_qc_t, [
2090 #include <linux/blkdev.h>
2093 make_request_fn *mrf;
2094 ret = mrf(NULL, NULL);
2096 AC_DEFINE(HAVE_QC_MAKE_REQUEST_FN, 1,
2097 [request_queue.make_request_fn returns blk_qc_t])
2099 ]) # LC_HAVE_QC_MAKE_REQUEST_FN
2102 # LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
2104 # 4.4 kernel merged type-specific data with the payload data for keys
2106 AC_DEFUN([LC_HAVE_KEY_PAYLOAD_DATA_ARRAY], [
2107 LB_CHECK_COMPILE([if 'struct key' has 'payload.data' as an array],
2108 key_payload_data_array, [
2109 #include <linux/key.h>
2111 ((struct key *)0)->payload.data[0] = NULL;
2113 AC_DEFINE(HAVE_KEY_PAYLOAD_DATA_ARRAY, 1, [payload.data is an array])
2115 ]) #LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
2118 # LC_HAVE_FILE_DENTRY
2120 # 4.5 adds wrapper file_dentry
2122 AC_DEFUN([LC_HAVE_FILE_DENTRY], [
2123 LB_CHECK_COMPILE([if Linux kernel has 'file_dentry'],
2125 #include <linux/fs.h>
2129 AC_DEFINE(HAVE_FILE_DENTRY, 1,
2130 [kernel has file_dentry])
2132 ]) # LC_HAVE_FILE_DENTRY
2135 # LC_HAVE_INODE_LOCK
2137 # 4.5 introduced inode_lock
2139 AC_DEFUN([LC_HAVE_INODE_LOCK], [
2140 LB_CHECK_COMPILE([if 'inode_lock' is defined],
2142 #include <linux/fs.h>
2146 AC_DEFINE(HAVE_INODE_LOCK, 1,
2147 [inode_lock is defined])
2149 ]) # LC_HAVE_INODE_LOCK
2152 # LC_HAVE_IOP_GET_LINK
2154 # 4.5 vfs replaced iop->follow_link with
2157 AC_DEFUN([LC_HAVE_IOP_GET_LINK], [
2158 LB_CHECK_COMPILE([if 'iop' has 'get_link'],
2159 inode_ops_get_link, [
2160 #include <linux/fs.h>
2162 struct inode_operations iop;
2163 iop.get_link = NULL;
2165 AC_DEFINE(HAVE_IOP_GET_LINK, 1,
2166 [have iop get_link])
2168 ]) # LC_HAVE_IOP_GET_LINK
2173 # Lustre linux kernel checks
2175 AC_DEFUN([LC_PROG_LINUX], [
2176 AC_MSG_NOTICE([Lustre kernel checks
2177 ==============================================================================])
2181 LC_CONFIG_HEALTH_CHECK_WRITE
2182 LC_CONFIG_LRU_RESIZE
2183 LC_LLITE_LLOOP_MODULE
2185 LC_GLIBC_SUPPORT_FHANDLES
2187 LC_HAVE_VOID_OPENSSL_HMAC_FUNCS
2190 LC_BLK_QUEUE_MAX_SEGMENTS
2193 LC_HAVE_DQUOT_FS_DISK_QUOTA
2194 LC_HAVE_DQUOT_SUSPEND
2195 LC_HAVE_ADD_WAIT_QUEUE_EXCLUSIVE
2199 LC_EXPORT_SIMPLE_SETATTR
2200 LC_EXPORT_TRUNCATE_COMPLETE_PAGE
2204 LC_SBOPS_EVICT_INODE
2210 LC_BLKDEV_GET_BY_DEV
2211 LC_GENERIC_PERMISSION
2218 LC_REQUEST_QUEUE_UNPLUG_FN
2219 LC_HAVE_FHANDLE_SYSCALLS
2220 LC_HAVE_FSTYPE_MOUNT
2222 LC_HAVE_INODE_OWNER_OR_CAPABLE
2223 LC_HAVE_SECURITY_IINITSEC
2226 LC_DIRTY_INODE_WITH_FLAG
2229 LC_LM_XXX_LOCK_MANAGER_OPS
2233 LC_INODE_PERMISION_2ARGS
2234 LC_RADIX_EXCEPTION_ENTRY
2235 LC_HAVE_LOOP_CTL_GET_FREE
2238 LC_HAVE_VOID_MAKE_REQUEST_FN
2239 LC_HAVE_PROTECT_I_NLINK
2242 LC_HAVE_MIGRATE_HEADER
2243 LC_MIGRATEPAGE_4ARGS
2244 LC_SUPEROPS_USE_DENTRY
2245 LC_INODEOPS_USE_UMODE_T
2246 LC_HAVE_CACHE_REGISTER
2250 LC_KMAP_ATOMIC_HAS_1ARG
2254 LC_HAVE_ENCODE_FH_PARENT
2255 LC_FILE_LLSEEK_SIZE_5ARG
2258 LC_DATA_FOR_LLITE_IS_LIST
2259 LC_DENTRY_OPEN_USE_PATH
2260 LC_HAVE_IOP_ATOMIC_OPEN
2261 LC_HAVE_SB_START_WRITE
2264 LC_HAVE_POSIXACL_USER_NS
2267 LC_HAVE_FILE_F_INODE
2269 LC_HAVE_SUNRPC_UPCALL_HAS_3ARGS
2272 LC_HAVE_HLIST_FOR_EACH_3ARG
2273 LC_HAVE_BIO_END_SECTOR
2276 LC_BLKDEV_RELEASE_RETURN_INT
2277 LC_HAVE_REMOVE_PROC_SUBTREE
2285 LC_HAVE_DENTRY_D_U_D_ALIAS
2286 LC_HAVE_DENTRY_D_CHILD
2289 LC_OLDSIZE_TRUNCATE_PAGECACHE
2298 LC_HAVE_TRUNCATE_IPAGES_FINAL
2304 LC_DIRECTIO_USE_ITER
2305 LC_HAVE_IOV_ITER_INIT_DIRECTION
2306 LC_HAVE_IOV_ITER_TRUNCATE
2307 LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
2313 LC_PERCPU_COUNTER_INIT
2314 LC_NFS_FILLDIR_USE_CTX
2318 LC_HAVE_DQUOT_QC_DQBLK
2321 LC_BACKING_DEV_INFO_REMOVAL
2322 LC_HAVE_BDI_CAP_MAP_COPY
2325 LC_CANCEL_DIRTY_PAGE
2329 LC_HAVE_SYNC_READ_WRITE
2332 LC_NEW_CANCEL_DIRTY_PAGE
2333 LC_BIO_ENDIO_USES_ONE_ARG
2334 LC_SYMLINK_OPS_USE_NAMEIDATA
2337 LC_HAVE_CACHE_HEAD_HLIST
2340 LC_HAVE_LOCKS_LOCK_FILE_WAIT
2341 LC_HAVE_QC_MAKE_REQUEST_FN
2342 LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
2349 LC_HAVE_IOP_GET_LINK
2352 AS_IF([test "x$enable_server" != xno], [
2353 LC_FUNC_DEV_SET_RDONLY
2363 # Check whether to build the client side of Lustre
2365 AC_DEFUN([LC_CONFIG_CLIENT], [
2366 AC_MSG_CHECKING([whether to build Lustre client support])
2367 AC_ARG_ENABLE([client],
2368 AC_HELP_STRING([--disable-client],
2369 [disable Lustre client support]),
2370 [], [enable_client="yes"])
2371 AC_MSG_RESULT([$enable_client])
2372 ]) # LC_CONFIG_CLIENT
2377 AC_DEFUN([LB_CONFIG_MPITESTS], [
2378 AC_ARG_ENABLE([mpitests],
2379 AC_HELP_STRING([--enable-mpitests=<yes|no|mpicc wrapper>],
2380 [include mpi tests]), [
2381 enable_mpitests="yes"
2384 MPICC_WRAPPER="mpicc"
2387 enable_mpitests="no"
2390 MPICC_WRAPPER=$enableval
2394 enable_mpitests="yes"
2395 MPICC_WRAPPER="mpicc"
2398 if test "x$enable_mpitests" != "xno"; then
2401 AC_CACHE_CHECK([whether mpitests can be built],
2402 lb_cv_mpi_tests, [AC_COMPILE_IFELSE([AC_LANG_SOURCE([
2406 MPI_Initialized(&flag);
2409 ])], [lb_cv_mpi_tests="yes"], [lb_cv_mpi_tests="no"])
2411 enable_mpitests=$lb_cv_mpi_tests
2414 AC_SUBST(MPICC_WRAPPER)
2415 ]) # LB_CONFIG_MPITESTS
2420 # whether to enable quota support global control
2422 AC_DEFUN([LC_CONFIG_QUOTA], [
2423 AC_MSG_CHECKING([whether to enable quota support global control])
2424 AC_ARG_ENABLE([quota],
2425 AC_HELP_STRING([--enable-quota],
2426 [enable quota support]),
2427 [], [enable_quota="yes"])
2428 AS_IF([test "x$enable_quota" = xyes],
2429 [AC_MSG_RESULT([yes])],
2430 [AC_MSG_RESULT([no])])
2431 ]) # LC_CONFIG_QUOTA
2436 AC_DEFUN([LC_QUOTA], [
2440 AS_IF([test "x$enable_quota" != xno -a "x$enable_utils" != xno], [
2441 AC_CHECK_HEADER([sys/quota.h],
2442 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1,
2443 [Define to 1 if you have <sys/quota.h>.])],
2444 [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
2449 # LC_CONFIG_NODEMAP_PROC_DEBUG
2451 # enable nodemap proc file debugging
2453 AC_DEFUN([LC_NODEMAP_PROC_DEBUG], [
2454 AC_MSG_CHECKING([whether to enable nodemap proc debug])
2455 AC_ARG_ENABLE([nodemap_proc_debug],
2456 AC_HELP_STRING([--enable-nodemap-proc-debug],
2457 [enable nodemap proc debug]),
2458 [], [enable_nodemap_proc_debug="no"])
2459 AC_MSG_RESULT([$enable_nodemap_proc_debug])
2460 AS_IF([test "x$enable_nodemap_proc_debug" != xno],
2461 [AC_DEFINE(NODEMAP_PROC_DEBUG, 1,
2462 [enable nodemap proc debug support])])
2463 ]) # LC_NODEMAP_PROC_DEBUG
2466 # LC_LLITE_LLOOP_MODULE
2468 # lloop_llite.ko does not currently work with page sizes
2471 AC_DEFUN([LC_LLITE_LLOOP_MODULE], [
2472 LB_CHECK_COMPILE([whether to enable 'llite_lloop' module],
2473 enable_llite_lloop_module, [
2474 #include <asm/page.h>
2476 #if PAGE_SIZE >= 65536
2477 #error "PAGE_SIZE >= 65536"
2480 [enable_llite_lloop_module="yes"],
2481 [enable_llite_lloop_module="no"])
2482 ]) # LC_LLITE_LLOOP_MODULE
2487 # configure support for optional OSD implementation
2489 AC_DEFUN([LC_OSD_ADDON], [
2490 AC_MSG_CHECKING([whether to use OSD addon])
2492 AC_HELP_STRING([--with-osd=path],
2493 [set path to optional osd]),
2500 OSDADDON="$with_osd"
2507 AS_IF([test $ENABLEOSDADDON -eq 0], [
2511 OSDMODNAME=$(basename $OSDADDON)
2512 AS_IF([test -e $LUSTRE/$OSDMODNAME], [
2513 AC_MSG_RESULT([can't link])
2515 ], [ln -s $OSDADDON $LUSTRE/$OSDMODNAME], [
2516 AC_MSG_RESULT([$OSDMODNAME])
2517 OSDADDON="subdir-m += $OSDMODNAME"
2519 AC_MSG_RESULT([can't link])
2529 # other configure checks
2531 AC_DEFUN([LC_CONFIGURE], [
2532 AC_MSG_NOTICE([Lustre core checks
2533 ==============================================================================])
2535 LC_CONFIG_OBD_BUFFER_SIZE
2537 AS_IF([test $target_cpu == "i686" -o $target_cpu == "x86_64"],
2538 [CFLAGS="$CFLAGS -Wall -Werror"])
2540 # maximum MDS thread count
2543 # lustre/utils/gss/gss_util.c
2544 # lustre/utils/gss/gssd_proc.c
2545 # lustre/utils/gss/krb5_util.c
2546 # lustre/utils/llog_reader.c
2547 # lustre/utils/create_iam.c
2548 # lustre/utils/libiam.c
2549 AC_CHECK_HEADERS([netdb.h endian.h])
2550 AC_CHECK_FUNCS([gethostbyname])
2552 # lustre/utils/llverdev.c
2553 AC_CHECK_HEADERS([blkid/blkid.h])
2555 # lustre/utils/llverfs.c
2556 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
2559 AC_CHECK_LIB([selinux], [is_selinux_enabled],
2560 [AC_CHECK_HEADERS([selinux/selinux.h],
2561 [SELINUX="-lselinux"
2562 AC_DEFINE([HAVE_SELINUX], 1,
2563 [support for selinux ])],
2566 No libselinux-devel package found, unable to build selinux enabled tools
2571 No selinux package found, unable to build selinux enabled tools
2577 AC_MSG_CHECKING([whether to report minimum OST free space])
2578 AC_ARG_ENABLE([mindf],
2579 AC_HELP_STRING([--enable-mindf],
2580 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
2581 [], [enable_mindf="no"])
2582 AC_MSG_RESULT([$enable_mindf])
2583 AS_IF([test "$enable_mindf" = "yes"],
2584 [AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])])
2586 AC_MSG_CHECKING([whether to randomly failing memory alloc])
2587 AC_ARG_ENABLE([fail_alloc],
2588 AC_HELP_STRING([--disable-fail-alloc],
2589 [disable randomly alloc failure]),
2590 [], [enable_fail_alloc="yes"])
2591 AC_MSG_RESULT([$enable_fail_alloc])
2592 AS_IF([test "x$enable_fail_alloc" != xno],
2593 [AC_DEFINE([RANDOM_FAIL_ALLOC], 1,
2594 [enable randomly alloc failure])])
2596 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
2597 AC_ARG_ENABLE([invariants],
2598 AC_HELP_STRING([--enable-invariants],
2599 [enable invariant checking (cpu intensive)]),
2600 [], [enable_invariants="no"])
2601 AC_MSG_RESULT([$enable_invariants])
2602 AS_IF([test "x$enable_invariants" = xyes],
2603 [AC_DEFINE([CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK], 1,
2604 [enable invariant checking])])
2606 AC_MSG_CHECKING([whether to track references with lu_ref])
2607 AC_ARG_ENABLE([lu_ref],
2608 AC_HELP_STRING([--enable-lu_ref],
2609 [enable lu_ref reference tracking code]),
2610 [], [enable_lu_ref="no"])
2611 AC_MSG_RESULT([$enable_lu_ref])
2612 AS_IF([test "x$enable_lu_ref" = xyes],
2613 [AC_DEFINE([USE_LU_REF], 1,
2614 [enable lu_ref reference tracking code])])
2616 AC_MSG_CHECKING([whether to enable page state tracking])
2617 AC_ARG_ENABLE([pgstate-track],
2618 AC_HELP_STRING([--enable-pgstate-track],
2619 [enable page state tracking]),
2620 [], [enable_pgstat_track="no"])
2621 AC_MSG_RESULT([$enable_pgstat_track])
2622 AS_IF([test "x$enable_pgstat_track" = xyes],
2623 [AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
2624 [enable page state tracking code])])
2630 # AM_CONDITIONALS for lustre
2632 AC_DEFUN([LC_CONDITIONALS], [
2633 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
2634 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
2635 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
2636 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
2637 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
2638 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
2639 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
2640 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
2641 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
2642 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
2643 AM_CONDITIONAL(LLITE_LLOOP, test x$enable_llite_lloop_module = xyes)
2644 ]) # LC_CONDITIONALS
2649 # files that should be generated with AC_OUTPUT
2651 AC_DEFUN([LC_CONFIG_FILES],
2655 lustre/autoconf/Makefile
2656 lustre/conf/Makefile
2657 lustre/contrib/Makefile
2659 lustre/include/Makefile
2660 lustre/include/lustre/Makefile
2661 lustre/kernel_patches/targets/3.10-rhel7.target
2662 lustre/kernel_patches/targets/2.6-rhel6.8.target
2663 lustre/kernel_patches/targets/2.6-rhel6.7.target
2664 lustre/kernel_patches/targets/2.6-rhel6.6.target
2665 lustre/kernel_patches/targets/2.6-rhel6.target
2666 lustre/kernel_patches/targets/2.6-rhel5.target
2667 lustre/kernel_patches/targets/2.6-sles11.target
2668 lustre/kernel_patches/targets/3.0-sles11.target
2669 lustre/kernel_patches/targets/3.0-sles11sp3.target
2670 lustre/kernel_patches/targets/3.0-sles11sp4.target
2671 lustre/kernel_patches/targets/3.12-sles12.target
2672 lustre/kernel_patches/targets/2.6-fc11.target
2673 lustre/kernel_patches/targets/2.6-fc12.target
2674 lustre/kernel_patches/targets/2.6-fc15.target
2675 lustre/kernel_patches/targets/3.x-fc18.target
2676 lustre/ldlm/Makefile
2678 lustre/fid/autoMakefile
2679 lustre/llite/Makefile
2680 lustre/llite/autoMakefile
2682 lustre/lov/autoMakefile
2684 lustre/mdc/autoMakefile
2686 lustre/lmv/autoMakefile
2687 lustre/lfsck/Makefile
2688 lustre/lfsck/autoMakefile
2690 lustre/mdt/autoMakefile
2692 lustre/mdd/autoMakefile
2694 lustre/fld/autoMakefile
2695 lustre/obdclass/Makefile
2696 lustre/obdclass/autoMakefile
2697 lustre/obdclass/linux/Makefile
2698 lustre/obdecho/Makefile
2699 lustre/obdecho/autoMakefile
2701 lustre/ofd/autoMakefile
2703 lustre/osc/autoMakefile
2705 lustre/ost/autoMakefile
2706 lustre/osd-ldiskfs/Makefile
2707 lustre/osd-ldiskfs/autoMakefile
2708 lustre/osd-zfs/Makefile
2709 lustre/osd-zfs/autoMakefile
2711 lustre/mgc/autoMakefile
2713 lustre/mgs/autoMakefile
2714 lustre/target/Makefile
2715 lustre/ptlrpc/Makefile
2716 lustre/ptlrpc/autoMakefile
2717 lustre/ptlrpc/gss/Makefile
2718 lustre/ptlrpc/gss/autoMakefile
2719 lustre/quota/Makefile
2720 lustre/quota/autoMakefile
2721 lustre/scripts/Makefile
2722 lustre/tests/Makefile
2723 lustre/tests/mpi/Makefile
2724 lustre/utils/Makefile
2725 lustre/utils/gss/Makefile
2727 lustre/osp/autoMakefile
2729 lustre/lod/autoMakefile
2731 ]) # LC_CONFIG_FILES