fi
])
-AC_DEFUN([LC_PERCPU_COUNTER],
-[AC_MSG_CHECKING([if have struct percpu_counter defined])
-LB_LINUX_TRY_COMPILE([
- #include <linux/percpu_counter.h>
-],[],[
- AC_DEFINE(HAVE_PERCPU_COUNTER, 1, [percpu_counter found])
- AC_MSG_RESULT([yes])
-
- AC_MSG_CHECKING([if percpu_counter_inc takes the 2nd argument])
- LB_LINUX_TRY_COMPILE([
- #include <linux/percpu_counter.h>
- ],[
- struct percpu_counter c;
- percpu_counter_init(&c, 0);
- ],[
- AC_DEFINE(HAVE_PERCPU_2ND_ARG, 1, [percpu_counter_init has two
- arguments])
- AC_MSG_RESULT([yes])
- ],[
- AC_MSG_RESULT([no])
- ])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
AC_DEFUN([LC_TASK_CLENV_STORE],
[
AC_MSG_CHECKING([if we can store cl_env in task_struct])
fi
])
-# ~2.6.11
-
-AC_DEFUN([LC_S_TIME_GRAN],
-[AC_MSG_CHECKING([if super block has s_time_gran member])
-LB_LINUX_TRY_COMPILE([
- #include <linux/fs.h>
-],[
- struct super_block *sb = NULL;
-
- return sb->s_time_gran;
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_S_TIME_GRAN, 1, [super block has s_time_gran member])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
-AC_DEFUN([LC_SB_TIME_GRAN],
-[AC_MSG_CHECKING([if kernel has old get_sb_time_gran])
-LB_LINUX_TRY_COMPILE([
- #include <linux/fs.h>
-],[
- return get_sb_time_gran(NULL);
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_SB_TIME_GRAN, 1, [kernel has old get_sb_time_gran])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
# 2.6.12
# ~2.6.12 merge patch from oracle to convert tree_lock from spinlock to rwlock
+# yet tree_lock is converted from rwlock to spin_lock since v2.6.26
AC_DEFUN([LC_RW_TREE_LOCK],
[AC_MSG_CHECKING([if kernel has tree_lock as rwlock])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="$tmp_flags"
])
-# 2.6.15
-
-# LC_INODE_I_MUTEX
-# after 2.6.15 inode have i_mutex intead of i_sem
-AC_DEFUN([LC_INODE_I_MUTEX],
-[AC_MSG_CHECKING([if inode has i_mutex ])
-LB_LINUX_TRY_COMPILE([
- #include <linux/mutex.h>
- #include <linux/fs.h>
- #undef i_mutex
-],[
- struct inode i;
-
- mutex_unlock(&i.i_mutex);
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_INODE_I_MUTEX, 1,
- [after 2.6.15 inode have i_mutex intead of i_sem])
-],[
- AC_MSG_RESULT(no)
-])
-])
-
-# 2.6.16
-
-# LC_SECURITY_PLUG # for SLES10 SP2
-# check security plug in sles10 sp2 kernel
-AC_DEFUN([LC_SECURITY_PLUG],
-[AC_MSG_CHECKING([If kernel has security plug support])
-LB_LINUX_TRY_COMPILE([
- #include <linux/fs.h>
- #include <linux/stddef.h>
-],[
- notify_change(NULL, NULL, NULL);
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SECURITY_PLUG, 1,
- [SLES10 SP2 use extra parameter in vfs])
-],[
- AC_MSG_RESULT(no)
-])
-])
-
-# 2.6.17
-
-# inode have i_private field since 2.6.17
-AC_DEFUN([LC_INODE_IPRIVATE],
-[AC_MSG_CHECKING([if inode has a i_private field])
-LB_LINUX_TRY_COMPILE([
-#include <linux/fs.h>
-],[
- struct inode i;
- i.i_private = NULL;
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_INODE_IPRIVATE, 1,
- [struct inode has i_private field])
-],[
- AC_MSG_RESULT(no)
-])
-])
-
-# LC_DQUOTOFF_MUTEX
-# after 2.6.17 dquote use mutex instead if semaphore
-AC_DEFUN([LC_DQUOTOFF_MUTEX],
-[AC_MSG_CHECKING([use dqonoff_mutex])
-LB_LINUX_TRY_COMPILE([
- #include <linux/mutex.h>
- #include <linux/fs.h>
- #include <linux/quota.h>
-],[
- struct quota_info dq;
-
- mutex_unlock(&dq.dqonoff_mutex);
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_DQUOTOFF_MUTEX, 1,
- [after 2.6.17 dquote use mutex instead if semaphore])
-],[
- AC_MSG_RESULT(no)
-])
-])
-
# 2.6.18
-# LC_NR_PAGECACHE
-# 2.6.18 don't export nr_pagecahe
-AC_DEFUN([LC_NR_PAGECACHE],
-[AC_MSG_CHECKING([kernel export nr_pagecache])
-LB_LINUX_TRY_COMPILE([
- #include <linux/pagemap.h>
-],[
- return atomic_read(&nr_pagecache);
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_NR_PAGECACHE, 1,
- [is kernel export nr_pagecache])
-],[
- AC_MSG_RESULT(no)
-])
-])
-
-#
-# LC_STATFS_DENTRY_PARAM
-# starting from 2.6.18 linux kernel uses dentry instead of super_block
-# for the first parameter of the super_operations->statfs() callback.
-#
-#
-AC_DEFUN([LC_STATFS_DENTRY_PARAM],
-[AC_MSG_CHECKING([if super_ops.statfs() first parameter is dentry])
-tmp_flags="$EXTRA_KCFLAGS"
-EXTRA_KCFLAGS="-Werror"
-LB_LINUX_TRY_COMPILE([
- #include <linux/fs.h>
-],[
- ((struct super_operations *)0)->statfs((struct dentry *)0, (struct kstatfs*)0);
-],[
- AC_DEFINE(HAVE_STATFS_DENTRY_PARAM, 1,
- [super_ops.statfs() first parameter is dentry])
- AC_MSG_RESULT([yes])
-],[
- AC_MSG_RESULT([no])
-])
-EXTRA_KCFLAGS="$tmp_flags"
-])
-
# LC_UMOUNTBEGIN_HAS_VFSMOUNT
# 2.6.18~2.6.25 umount_begin has different parameters
AC_DEFUN([LC_UMOUNTBEGIN_HAS_VFSMOUNT],
EXTRA_KCFLAGS="$tmp_flags"
])
-# LC_FLUSH_OWNER_ID
-# starting from 2.6.18 the file_operations .flush
-# method has a new "fl_owner_t id" parameter
-#
-AC_DEFUN([LC_FLUSH_OWNER_ID],
-[AC_MSG_CHECKING([if file_operations .flush has an fl_owner_t id])
-LB_LINUX_TRY_COMPILE([
- #include <linux/fs.h>
-],[
- struct file_operations *fops = NULL;
- fl_owner_t id = NULL;
- int i;
-
- i = fops->flush(NULL, id);
-],[
- AC_DEFINE(HAVE_FLUSH_OWNER_ID, 1,
- [file_operations .flush method has an fl_owner_t id])
- AC_MSG_RESULT([yes])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
-#
-# LC_EXPORT_INVALIDATE_MAPPING_PAGES
-#
-# SLES9, RHEL4, RHEL5, vanilla 2.6.24 export invalidate_mapping_pages() but
-# SLES10 2.6.16 does not, for some reason. For filter cache invalidation.
-#
-AC_DEFUN([LC_EXPORT_INVALIDATE_MAPPING_PAGES],
- [LB_CHECK_SYMBOL_EXPORT([invalidate_mapping_pages], [mm/truncate.c], [
- AC_DEFINE(HAVE_INVALIDATE_MAPPING_PAGES, 1,
- [exported invalidate_mapping_pages])],
- [LB_CHECK_SYMBOL_EXPORT([invalidate_inode_pages], [mm/truncate.c], [
- AC_DEFINE(HAVE_INVALIDATE_INODE_PAGES, 1,
- [exported invalidate_inode_pages])], [
- AC_MSG_ERROR([no way to invalidate pages])
- ])
- ],[])
-])
-
#2.6.18 + RHEL5 (fc6)
# RHEL5 in FS-cache patch rename PG_checked flag into PG_fs_misc
AC_DEFINE(HAVE_PROCFS_USERS, 1,
[kernel has pde_users member in procfs entry struct])
],[
- AC_MSG_RESULT([no])
+ LB_LINUX_TRY_COMPILE([
+ #include "$LINUX/fs/proc/internal.h"
+ ],[
+ struct proc_dir_entry_aux pde_aux;
+
+ pde_aux.pde_users = 0;
+ ],[
+ AC_MSG_RESULT([yes])
+ AC_DEFINE(HAVE_PROCFS_USERS, 1,
+ [kernel has pde_users member in proc_dir_entry_aux])
+ ],[
+ AC_MSG_RESULT([no])
+ ])
])
])
#
# 2.6.27
#
+
+# LC_SECURITY_PLUG # for SLES10 SP2 (2.6.27)
+# check security plug in sles10 sp2 kernel
+AC_DEFUN([LC_SECURITY_PLUG],
+[AC_MSG_CHECKING([If kernel has security plug support])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/fs.h>
+ #include <linux/stddef.h>
+],[
+ notify_change(NULL, NULL, NULL);
+],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_SECURITY_PLUG, 1,
+ [SLES10 SP2 use extra parameter in vfs])
+],[
+ AC_MSG_RESULT(no)
+])
+])
+
AC_DEFUN([LC_PGMKWRITE_USE_VMFAULT],
[AC_MSG_CHECKING([kernel .page_mkwrite uses struct vm_fault *])
tmp_flags="$EXTRA_KCFLAGS"
#
# 2.6.38 vfsmount.mnt_count doesn't use atomic_t
#
+# 3.3 starts hiding vfsmount guts series (move from include/linux/mount.h to
+# fs/mount.h, see kernel commit 7d6fec45a5131918b51dcd76da52f2ec86a85be6)
+#
AC_DEFUN([LC_ATOMIC_MNT_COUNT],
-[AC_MSG_CHECKING([if vfsmount.mnt_count is atomic_t])
+[AC_MSG_CHECKING([if vfsmount guts is hidden, or vfsmount.mnt_count is atomic_t.])
LB_LINUX_TRY_COMPILE([
- #include <asm/atomic.h>
- #include <linux/fs.h>
- #include <linux/mount.h>
+ #include <linux/fs.h>
+ #include <../fs/mount.h>
],[
- ((struct vfsmount *)0)->mnt_count = ((atomic_t) { 0 });
+ struct mount *mnt = real_mount((struct vfsmount *)0);
],[
- AC_DEFINE(HAVE_ATOMIC_MNT_COUNT, 1,
- [vfsmount.mnt_count is atomic_t])
- AC_MSG_RESULT([yes])
+ AC_DEFINE(HAVE_HIDE_VFSMOUNT_GUTS, 1,
+ [hide vfsmount guts in fs/mount.h])
+ AC_MSG_RESULT([yes, hide vfsmount guts in fs/mount.h])
],[
- AC_MSG_RESULT([no])
+ LB_LINUX_TRY_COMPILE([
+ #include <asm/atomic.h>
+ #include <linux/fs.h>
+ #include <linux/mount.h>
+ ],[
+ ((struct vfsmount *)0)->mnt_count = ((atomic_t) { 0 });
+ ],[
+ AC_DEFINE(HAVE_ATOMIC_MNT_COUNT, 1,
+ [vfsmount.mnt_count is atomic_t])
+ AC_MSG_RESULT([yes, vfsmount.mnt_count is atomic_t])
+ ],[
+ AC_MSG_RESULT([no])
+ ])
])
])
LC_CAPA_CRYPTO
LC_CONFIG_RMTCLIENT
LC_CONFIG_GSS
- LC_PERCPU_COUNTER
LC_TASK_CLENV_STORE
- # ~2.6.11
- LC_S_TIME_GRAN
- LC_SB_TIME_GRAN
-
# 2.6.12
LC_RW_TREE_LOCK
- # 2.6.15
- LC_INODE_I_MUTEX
-
- # 2.6.16
- LC_SECURITY_PLUG # for SLES10 SP2
-
- # 2.6.17
- LC_INODE_IPRIVATE
- LC_DQUOTOFF_MUTEX
-
# 2.6.18
- LC_NR_PAGECACHE
- LC_STATFS_DENTRY_PARAM
LC_UMOUNTBEGIN_HAS_VFSMOUNT
- LC_FLUSH_OWNER_ID
- if test x$enable_server = xyes ; then
- LC_EXPORT_INVALIDATE_MAPPING_PAGES
- fi
#2.6.18 + RHEL5 (fc6)
LC_PG_FS_MISC
LC_FS_STRUCT_USE_PATH
# 2.6.27
+ LC_SECURITY_PLUG # for SLES10 SP2
LC_PGMKWRITE_USE_VMFAULT
LC_INODE_PERMISION_2ARGS
LC_FILE_REMOVE_SUID
git://git.whamcloud.com / fs / lustre-release.git / blobdiff