Tim Chen 423e0ab086 VFS : mount lock scalability for internal mounts ... For a number of file systems that don't have a mount point (e.g. sockfs and pipefs), they are not marked as long term. Therefore in mntput_no_expire, all locks in vfs_mount lock are taken instead of just local cpu's lock to aggregate reference counts when we release reference to file objects. In fact, only local lock need to have been taken to update ref counts as these file systems are in no danger of going away until we are ready to unregister them. The attached patch marks file systems using kern_mount without mount point as long term. The contentions of vfs_mount lock is now eliminated. Before un-registering such file system, kern_unmount should be called to remove the long term flag and make the mount point ready to be freed. Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>		2011-07-24 10:08:32 -04:00
..
9p	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
adfs	…
affs	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
afs	AFS: Fix silly characters in a comment	2011-07-20 20:48:03 -04:00
autofs4	autofs4: bogus dentry_unhash() added in ->unlink()	2011-05-30 01:50:53 -04:00
befs	…
bfs	bfs: remove unnecessary dentry_unhash on dir rename	2011-05-28 01:02:50 -04:00
btrfs	get rid of useless dget_parent() in btrfs rename() and link()	2011-07-20 20:48:00 -04:00
cachefiles	kill useless checks for sb->s_op == NULL	2011-07-20 01:44:21 -04:00
ceph	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
cifs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2011-07-22 19:02:39 -07:00
coda	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
configfs	configfs: remove unnecessary dentry_unhash on rmdir, dir rename	2011-05-28 01:02:54 -04:00
cramfs	cramfs: get_cramfs_inode() returns ERR_PTR() on failure	2011-07-17 23:22:02 -04:00
debugfs	debugfs: move to new strtobool	2011-05-19 16:55:28 +09:30
devpts	…
dlm	dlm: don't limit active work items	2011-07-19 14:22:32 -05:00
ecryptfs	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
efs	make d_splice_alias(ERR_PTR(err), dentry) = ERR_PTR(err)	2011-07-20 01:44:26 -04:00
exofs	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
exportfs	…
ext2	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
ext3	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
ext4	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
fat	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
freevxfs	treewide: fix a few typos in comments	2011-05-10 10:16:21 +02:00
fscache	FS-Cache: Fix __fscache_uncache_all_inode_pages()'s outer loop	2011-07-21 10:59:16 -07:00
fuse	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
gfs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2011-07-22 19:02:39 -07:00
hfs	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
hfsplus	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2011-07-22 19:02:39 -07:00
hostfs	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
hpfs	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
hppfs	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
hugetlbfs	VFS : mount lock scalability for internal mounts	2011-07-24 10:08:32 -04:00
isofs	isofs: Remove global fs lock	2011-07-22 19:42:12 -04:00
jbd	jbd: Fix comment to match the code in journal_start()	2011-05-24 00:27:53 +02:00
jbd2	jbd2: Fix oops in jbd2_journal_remove_journal_head()	2011-06-13 15:38:22 -04:00
jffs2	jffs2: fix IN_DELETE_SELF on overwriting rename() killing a directory	2011-07-22 19:42:11 -04:00
jfs	jfs_lookup(): don't bother with . or ..	2011-07-20 20:48:01 -04:00
lockd	NLM: Don't hang forever on NLM unlock requests	2011-06-15 11:24:27 -04:00
logfs	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
minix	minix_getattr(): don't bother with ->d_parent	2011-07-20 20:47:53 -04:00
ncpfs	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
nfs	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
nfs_common	…
nfsd	nfsd4_list_rec_dir(): don't bother with reopening rec_file	2011-07-20 01:44:23 -04:00
nilfs2	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
nls	…
notify	…
ntfs	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
ocfs2	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
omfs	Remove unneeded version.h includes from fs/	2011-06-24 08:34:22 -07:00
openpromfs	…
partitions	Revert "block: Remove extra discard_alignment from hd_struct."	2011-05-30 07:42:51 +02:00
proc	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2011-07-22 19:02:39 -07:00
pstore	pstore: fix pstore filesystem mount/remount issue	2011-05-16 11:05:00 -07:00
qnx4	…
quota	vmscan: change shrinker API by passing shrink_control struct	2011-05-25 08:39:26 -07:00
ramfs	…
reiserfs	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
romfs	romfs: fix romfs_get_unmapped_area() argument check	2011-06-27 18:00:12 -07:00
squashfs	make d_splice_alias(ERR_PTR(err), dentry) = ERR_PTR(err)	2011-07-20 01:44:26 -04:00
sysfs	->permission() sanitizing: don't pass flags to ->permission()	2011-07-20 01:43:24 -04:00
sysv	sysv: remove unnecessary dentry_unhash from rmdir, dir rename	2011-05-28 01:02:50 -04:00
ubifs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2011-07-22 19:02:39 -07:00
udf	switch udf_ioctl() to inode_permission()	2011-07-20 01:43:07 -04:00
ufs	make d_splice_alias(ERR_PTR(err), dentry) = ERR_PTR(err)	2011-07-20 01:44:26 -04:00
xfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2011-07-22 19:02:39 -07:00
Kconfig	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2011-05-26 09:52:14 -07:00
Kconfig.binfmt	…
Makefile	…
aio.c	…
anon_inodes.c	VFS : mount lock scalability for internal mounts	2011-07-24 10:08:32 -04:00
attr.c	fs: move inode_dio_wait calls into ->setattr	2011-07-20 20:47:47 -04:00
bad_inode.c	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
binfmt_aout.c	…
binfmt_elf.c	consolidate BINPRM_FLAGS_ENFORCE_NONDUMP handling	2011-07-20 01:43:10 -04:00
binfmt_elf_fdpic.c	consolidate BINPRM_FLAGS_ENFORCE_NONDUMP handling	2011-07-20 01:43:10 -04:00
binfmt_em86.c	…
binfmt_flat.c	…
binfmt_misc.c	consolidate BINPRM_FLAGS_ENFORCE_NONDUMP handling	2011-07-20 01:43:10 -04:00
binfmt_script.c	…
binfmt_som.c	…
bio-integrity.c	…
bio.c	block: improve the bio_add_page() and bio_add_pc_page() descriptions	2011-05-28 14:44:46 +02:00
block_dev.c	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
buffer.c	vfs: Fix data corruption after failed write in __block_write_begin()	2011-06-16 11:44:46 -04:00
char_dev.c	…
compat.c	…
compat_binfmt_elf.c	…
compat_ioctl.c	…
dcache.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2011-07-22 19:02:39 -07:00
dcookies.c	oprofile, dcookies: Fix possible circular locking dependency	2011-05-31 16:33:35 +02:00
direct-io.c	fs: move inode_dio_done to the end_io handler	2011-07-20 20:47:50 -04:00
drop_caches.c	vmscan: change shrinker API by passing shrink_control struct	2011-05-25 08:39:26 -07:00
eventfd.c	…
eventpoll.c	…
exec.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2011-07-22 19:02:39 -07:00
fcntl.c	…
fhandle.c	…
fifo.c	…
file.c	…
file_table.c	…
filesystems.c	…
fs-writeback.c	superblock: move pin_sb_for_writeback() to fs/super.c	2011-07-20 01:44:38 -04:00
fs_struct.c	…
generic_acl.c	->permission() sanitizing: don't pass flags to ->check_acl()	2011-07-20 01:43:21 -04:00
inode.c	fs: kill i_alloc_sem	2011-07-20 20:47:46 -04:00
internal.h	superblock: move pin_sb_for_writeback() to fs/super.c	2011-07-20 01:44:38 -04:00
ioctl.c	…
ioprio.c	…
libfs.c	fix IN_DELETE_SELF on overwriting rename() on ramfs et.al.	2011-07-22 19:42:11 -04:00
locks.c	fs: fix lock initialization	2011-07-06 10:41:13 -07:00
mbcache.c	vmscan: change shrinker API by passing shrink_control struct	2011-05-25 08:39:26 -07:00
mpage.c	mm/fs: add hooks to support cleancache	2011-05-26 10:01:43 -06:00
namei.c	VFS: Fixup kerneldoc for generic_permission()	2011-07-20 20:47:43 -04:00
namespace.c	VFS : mount lock scalability for internal mounts	2011-07-24 10:08:32 -04:00
nfsctl.c	…
no-block.c	…
open.c	vfs: use ERR_CAST for err-ptr tossing in lookup_instantiate_filp	2011-07-22 19:42:13 -04:00
pipe.c	VFS : mount lock scalability for internal mounts	2011-07-24 10:08:32 -04:00
pnode.c	…
pnode.h	…
posix_acl.c	…
read_write.c	fs: add SEEK_HOLE and SEEK_DATA flags	2011-07-20 20:47:56 -04:00
read_write.h	…
readdir.c	…
select.c	…
seq_file.c	…
signalfd.c	…
splice.c	splice: add wakeup_pipe_readers()	2011-05-23 19:58:53 +02:00
stack.c	…
stat.c	…
statfs.c	…
super.c	vfs: increase shrinker batch size	2011-07-20 20:47:41 -04:00
sync.c	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
timerfd.c	timerfd: Fix wakeup of processes when timer is cancelled on clock change	2011-06-14 11:46:14 +02:00
utimes.c	…
xattr.c	Cache xattr security drop check for write v2	2011-05-28 12:02:09 -04:00
xattr_acl.c	…