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bc015cb84129eb1451913cfebece270bf7a39e0f
linux/fs
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Steven Whitehouse bc015cb841 GFS2: Use RCU for glock hash table 
This has a number of advantages:

 - Reduces contention on the hash table lock
 - Makes the code smaller and simpler
 - Should speed up glock dumps when under load
 - Removes ref count changing in examine_bucket
 - No longer need hash chain lock in glock_put() in common case

There are some further changes which this enables and which
we may do in the future. One is to look at using SLAB_RCU,
and another is to look at using a per-cpu counter for the
per-sb glock counter, since that is touched twice in the
lifetime of each glock (but only used at umount time).

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2011-01-21 09:39:08 +00:00
..
9p
switch 9p
2011-01-12 20:03:43 -05:00
adfs
switch adfs
2011-01-12 20:02:45 -05:00
affs
switch affs
2011-01-12 20:03:42 -05:00
afs
Unexport do_add_mount() and add in follow_automount(), not ->d_automount()
2011-01-15 20:07:48 -05:00
autofs4
autofs4: clean ->d_release() and autofs4_free_ino() up
2011-01-18 01:21:29 -05:00
befs
befs: don't pass huge structs by value
2011-01-13 08:03:15 -08:00
bfs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
btrfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
2011-01-17 14:43:43 -08:00
cachefiles
…
ceph
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
2011-01-13 10:25:24 -08:00
cifs
cifs: mangle existing header for SMB_COM_NT_CANCEL
2011-01-20 18:08:36 +00:00
coda
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
2011-01-13 10:27:28 -08:00
configfs
configfs: change depends -> select SYSFS
2011-01-16 21:22:29 +00:00
cramfs
cramfs: generate unique inode number for better inode cache usage
2011-01-13 08:03:23 -08:00
debugfs
convert get_sb_single() users
2010-10-29 04:16:28 -04:00
devpts
convert get_sb_single() users
2010-10-29 04:16:28 -04:00
dlm
dlm: Make DLM depend on CONFIGFS_FS
2011-01-16 21:22:37 +00:00
ecryptfs
ecryptfs: remove unnecessary decrypt when extending a file
2011-01-17 13:01:25 -06:00
efs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
exofs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
exportfs
fs: dcache per-inode inode alias locking
2011-01-07 17:50:31 +11:00
ext2
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
2011-01-11 14:37:31 -08:00
ext3
Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block
2011-01-13 10:45:01 -08:00
ext4
fallocate should be a file operation
2011-01-17 02:25:31 -05:00
fat
switch fat to ->s_d_op, close exportfs races there
2011-01-12 20:02:43 -05:00
freevxfs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
fscache
FS-Cache: Fix operation handling
2011-01-14 09:23:36 -08:00
fuse
switch fuse
2011-01-12 20:02:44 -05:00
gfs2
GFS2: Use RCU for glock hash table
2011-01-21 09:39:08 +00:00
hfs
switch hfs
2011-01-12 20:02:45 -05:00
hfsplus
switch hfsplus
2011-01-12 20:02:45 -05:00
hostfs
switch hostfs
2011-01-12 20:03:42 -05:00
hpfs
hpfs_setattr error case avoids unlock_kernel
2011-01-17 05:11:37 -05:00
hppfs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
hugetlbfs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
isofs
fix isofs d_op handling
2011-01-12 20:02:43 -05:00
jbd
fix comment typos concerning "consistent"
2010-12-10 16:04:28 +01:00
jbd2
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2011-01-13 10:05:56 -08:00
jffs2
Merge git://git.infradead.org/mtd-2.6
2011-01-17 11:15:30 -08:00
jfs
Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block
2011-01-13 10:45:01 -08:00
lockd
lockd: double unlock in next_host_state()
2011-01-04 13:10:37 -05:00
logfs
Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block
2011-01-13 10:45:01 -08:00
minix
minixfs: kill dead code
2011-01-12 20:02:44 -05:00
ncpfs
move internal-only parts of ncpfs headers to fs/ncpfs
2011-01-12 20:03:43 -05:00
nfs
Unexport do_add_mount() and add in follow_automount(), not ->d_automount()
2011-01-15 20:07:48 -05:00
nfs_common
…
nfsd
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
2011-01-16 11:31:50 -08:00
nilfs2
Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block
2011-01-13 10:45:01 -08:00
nls
…
notify
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2011-01-13 10:05:56 -08:00
ntfs
NTFS: writev() fix and maintenance/contact details update
2011-01-12 08:35:53 -08:00
ocfs2
fallocate should be a file operation
2011-01-17 02:25:31 -05:00
omfs
new helper: mount_bdev()
2010-10-29 04:16:13 -04:00
openpromfs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
partitions
Merge branch 'for-2.6.38/event-handling' into for-2.6.38/core
2011-01-13 14:47:54 +01:00
proc
kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT
2011-01-20 17:02:05 -08:00
qnx4
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
quota
quota: Use %pV and __attribute__((format (printf in __quota_error and fix fallout
2011-01-10 19:04:05 +01:00
ramfs
convert get_sb_nodev() users
2010-10-29 04:16:31 -04:00
reiserfs
Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block
2011-01-13 10:45:01 -08:00
romfs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
squashfs
Squashfs: simplify CONFIG_SQUASHFS_LZO handling
2011-01-13 21:38:46 +00:00
sysfs
kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT
2011-01-20 17:02:05 -08:00
sysv
switch sysv
2011-01-12 20:02:44 -05:00
ubifs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
udf
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6
2011-01-11 14:45:52 -08:00
ufs
fs: icache RCU free inodes
2011-01-07 17:50:26 +11:00
xfs
xfs: Do not name variables "panic"
2011-01-17 12:39:07 -08:00
aio.c
aio: check return value of create_workqueue()
2011-01-17 05:12:44 -05:00
anon_inodes.c
sanitize vfsmount refcounting changes
2011-01-16 13:47:07 -05:00
attr.c
…
bad_inode.c
fs: provide rcu-walk aware permission i_ops
2011-01-07 17:50:29 +11:00
binfmt_aout.c
…
binfmt_elf_fdpic.c
…
binfmt_elf.c
binfmt_elf: cleanups
2011-01-13 08:03:12 -08:00
binfmt_em86.c
…
binfmt_flat.c
…
binfmt_misc.c
convert get_sb_single() users
2010-10-29 04:16:28 -04:00
binfmt_script.c
…
binfmt_som.c
…
bio-integrity.c
bio-integrity: mark kintegrityd_wq highpri and CPU intensive
2011-01-03 15:01:48 +01:00
bio.c
bio: take care not overflow page count when mapping/copying user data
2010-11-10 14:40:43 +01:00
block_dev.c
block: restore multiple bd_link_disk_holder() support
2011-01-14 18:44:22 +01:00
buffer.c
fs: Use this_cpu_inc_return in buffer.c
2010-12-17 15:18:05 +01:00
char_dev.c
Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block
2011-01-13 10:45:01 -08:00
compat_binfmt_elf.c
…
compat_ioctl.c
Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
2011-01-07 14:39:20 -08:00
compat.c
compat: copy missing fields in compat_statfs64 to user
2011-01-17 04:54:38 -05:00
dcache.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
2011-01-16 11:31:50 -08:00
dcookies.c
…
direct-io.c
fs/direct-io.c: don't try to allocate more than BIO_MAX_PAGES in a bio
2011-01-20 17:02:05 -08:00
drop_caches.c
…
eventfd.c
…
eventpoll.c
epoll: convert max_user_watches to long
2011-01-13 08:03:12 -08:00
exec.c
install_special_mapping skips security_file_mmap check.
2010-12-15 12:30:36 -08:00
fcntl.c
fasync: Fix placement of FASYNC flag comment
2010-10-27 18:17:02 -07:00
fifo.c
…
file_table.c
fs: Remove unlikely() from fget_light()
2011-01-17 03:26:27 -05:00
file.c
…
filesystems.c
fs: rcu-walk for path lookup
2011-01-07 17:50:27 +11:00
fs_struct.c
sanitize vfsmount refcounting changes
2011-01-16 13:47:07 -05:00
fs-writeback.c
fs/fs-writeback.c: fix sync_inodes_sb() return value kernel-doc
2011-01-13 17:32:48 -08:00
generic_acl.c
fs: provide simple rcu-walk generic_check_acl implementation
2011-01-07 17:50:29 +11:00
inode.c
fs: avoid inode RCU freeing for pseudo fs
2011-01-07 17:50:26 +11:00
internal.h
tidy up around finish_automount()
2011-01-17 01:47:59 -05:00
ioctl.c
fs: fix address space warnings in ioctl_fiemap()
2011-01-17 08:21:42 -05:00
ioprio.c
ioprio: grab rcu_read_lock in sys_ioprio_{set,get}()
2010-11-15 10:23:31 +01:00
Kconfig
kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT
2011-01-20 17:02:05 -08:00
Kconfig.binfmt
coredump: default CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
2010-10-27 18:03:12 -07:00
libfs.c
pass default dentry_operations to mount_pseudo()
2011-01-12 20:03:43 -05:00
locks.c
Merge branch 'for-2.6.38' of git://linux-nfs.org/~bfields/linux
2011-01-14 13:17:26 -08:00
Makefile
Merge 'staging-next' to Linus's tree
2010-10-28 09:44:56 -07:00
mbcache.c
ext2: Resolve 'dereferencing pointer to incomplete type' when enabling EXT2_XATTR_DEBUG
2011-01-10 19:04:08 +01:00
mpage.c
fs/mpage.c: consolidate code
2011-01-13 17:32:32 -08:00
namei.c
vfs - fix dentry ref count in do_lookup()
2011-01-18 01:21:26 -05:00
namespace.c
tidy up around finish_automount()
2011-01-17 01:47:59 -05:00
nfsctl.c
…
no-block.c
…
open.c
fallocate should be a file operation
2011-01-17 02:25:31 -05:00
pipe.c
Fix broken "pipe: use event aware wakeups" optimization
2011-01-20 16:21:59 -08:00
pnode.c
fs: scale mntget/mntput
2011-01-07 17:50:33 +11:00
pnode.h
…
posix_acl.c
…
read_write.c
fix signedness mess in rw_verify_area() on 64bit architectures
2011-01-12 20:06:58 -05:00
read_write.h
…
readdir.c
…
select.c
fs/select.c: fix information leak to userspace
2011-01-13 08:03:12 -08:00
seq_file.c
fs: take dcache_lock inside __d_path
2010-10-25 21:26:12 -04:00
signalfd.c
Merge branch 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6
2010-10-26 10:13:10 -07:00
splice.c
Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block
2011-01-13 10:45:01 -08:00
stack.c
…
stat.c
Add an AT_NO_AUTOMOUNT flag to suppress terminal automount
2011-01-15 20:07:33 -05:00
statfs.c
…
super.c
sanitize vfsmount refcounting changes
2011-01-16 13:47:07 -05:00
sync.c
…
timerfd.c
…
utimes.c
…
xattr_acl.c
…
xattr.c
…