Theodore Ts'o eb8abb927a ext4: Remove useless spinlock in ext4_getattr() ... Linus noted, and complained to me, that doing while lots of "git diff"'s of kernel sources, these spinlocks were responsible for 27% of the spinlock cost on his two-processor system as reported by perf. Git was doing lots of parallel stats, and this was putting a lot of pressure on ext4_getattr(). A spinlock to protect a single memory-to-memory copy is pointless, so remove it. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2010-11-02 10:38:30 -04:00
..
9p	convert v9fs	2010-10-29 04:16:38 -04:00
adfs	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
affs	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
afs	convert afs	2010-10-29 04:17:13 -04:00
autofs4	convert get_sb_nodev() users	2010-10-29 04:16:31 -04:00
befs	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
bfs	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
btrfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable	2010-10-30 09:05:48 -07:00
cachefiles	llseek: automatically add .llseek fop	2010-10-15 15:53:27 +02:00
ceph	convert ceph	2010-10-29 04:17:18 -04:00
cifs	locks: let the caller free file_lock on ->setlease failure	2010-10-31 06:35:15 -07:00
coda	convert get_sb_nodev() users	2010-10-29 04:16:31 -04:00
configfs	convert get_sb_single() users	2010-10-29 04:16:28 -04:00
cramfs	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
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	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm	2010-10-22 17:33:16 -07:00
ecryptfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6	2010-10-29 14:15:12 -07:00
efs	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
exofs	convert get_sb_nodev() users	2010-10-29 04:16:31 -04:00
exportfs	exportfs: use dget_parent	2010-10-25 21:26:13 -04:00
ext2	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
ext3	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
ext4	ext4: Remove useless spinlock in ext4_getattr()	2010-11-02 10:38:30 -04:00
fat	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
freevxfs	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
fscache	Add a dummy printk function for the maintenance of unused printks	2010-08-12 09:51:35 -07:00
fuse	convert get_sb_nodev() users	2010-10-29 04:16:31 -04:00
gfs2	locks: let the caller free file_lock on ->setlease failure	2010-10-31 06:35:15 -07:00
hfs	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
hfsplus	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
hostfs	convert get_sb_nodev() users	2010-10-29 04:16:31 -04:00
hpfs	Merge branches 'irq-core-for-linus' and 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-10-31 20:40:24 -04:00
hppfs	convert get_sb_nodev() users	2010-10-29 04:16:31 -04:00
hugetlbfs	convert get_sb_nodev() users	2010-10-29 04:16:31 -04:00
isofs	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
jbd	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6	2010-10-27 20:13:18 -07:00
jbd2	jbd2: Convert jbd2_slab_create_sem to mutex	2010-10-30 12:12:50 +02:00
jffs2	Merge git://git.infradead.org/mtd-2.6	2010-10-30 08:31:35 -07:00
jfs	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
lockd	lockd: fix nlmsvc_notify_blocked locking	2010-10-27 21:39:50 +02:00
logfs	fs: logfs: Fix up MTD=y build.	2010-11-01 16:34:56 -04:00
minix	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
ncpfs	convert get_sb_nodev() users	2010-10-29 04:16:31 -04:00
nfs	locks: let the caller free file_lock on ->setlease failure	2010-10-31 06:35:15 -07:00
nfs_common
nfsd	locks: let the caller free file_lock on ->setlease failure	2010-10-31 06:35:15 -07:00
nilfs2	convert nilfs	2010-10-29 04:16:53 -04:00
nls
notify	make fanotify_read() restartable across signals	2010-10-30 14:07:35 -04:00
ntfs	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
ocfs2	convert get_sb_nodev() users	2010-10-29 04:16:31 -04:00
omfs	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
openpromfs	convert get_sb_single() users	2010-10-29 04:16:28 -04:00
partitions	Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block	2010-10-25 07:45:10 -07:00
proc	switch procfs to ->mount()	2010-10-29 04:17:01 -04:00
qnx4	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
quota	quota: Fix possible oops in __dquot_initialize()	2010-10-28 01:30:06 +02:00
ramfs	convert get_sb_nodev() users	2010-10-29 04:16:31 -04:00
reiserfs	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
romfs	convert get_sb_mtd() users to ->mount()	2010-10-29 04:16:26 -04:00
squashfs	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus	2010-10-29 08:48:58 -07:00
sysfs	convert sysfs	2010-10-29 04:17:08 -04:00
sysv	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
ubifs	convert ubifs	2010-10-29 04:16:36 -04:00
udf	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
ufs	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
xfs	new helper: mount_bdev()	2010-10-29 04:16:13 -04:00
aio.c	new helper: ihold()	2010-10-25 21:26:11 -04:00
anon_inodes.c	convert get_sb_pseudo() users	2010-10-29 04:16:33 -04:00
attr.c	check ATTR_SIZE contraints in inode_change_ok	2010-08-09 16:47:39 -04:00
bad_inode.c	bkl: Remove locked .ioctl file operation	2010-08-14 00:24:24 +02:00
binfmt_aout.c	Don't dump task struct in a.out core-dumps	2010-10-14 10:57:40 -07:00
binfmt_elf_fdpic.c	binfmt_elf_fdpic: Fix clear_user() error handling	2010-06-01 08:11:06 -07:00
binfmt_elf.c	ARM: 6342/1: fix ASLR of PIE executables	2010-10-08 10:02:53 +01:00
binfmt_em86.c
binfmt_flat.c	flat: tweak default stack alignment	2010-06-29 15:29:31 -07:00
binfmt_misc.c	convert get_sb_single() users	2010-10-29 04:16:28 -04:00
binfmt_script.c	Make do_execve() take a const filename pointer	2010-08-17 18:07:43 -07:00
binfmt_som.c
bio-integrity.c	fs/bio-integrity.c: return -ENOMEM on kmalloc failure	2010-08-23 13:36:59 +02:00
bio.c	block: unify flags for struct bio and struct request	2010-08-07 18:20:39 +02:00
block_dev.c	convert get_sb_pseudo() users	2010-10-29 04:16:33 -04:00
buffer.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-10-26 17:58:44 -07:00
char_dev.c	Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl	2010-10-22 10:52:56 -07:00
compat_binfmt_elf.c
compat_ioctl.c	Merge 'staging-next' to Linus's tree	2010-10-28 09:44:56 -07:00
compat.c	fs/compat.c: fix build on MIPS/s390	2010-10-30 08:19:35 -07:00
dcache.c	fs: use RCU read side protection in d_validate	2010-10-25 21:26:13 -04:00
dcookies.c
direct-io.c	fs/direct-io.c: fix truncation error in dio_complete() return	2010-10-26 16:52:13 -07:00
drop_caches.c	simplify checks for I_CLEAR/I_FREEING	2010-08-09 16:47:44 -04:00
eventfd.c	llseek: automatically add .llseek fop	2010-10-15 15:53:27 +02:00
eventpoll.c	epoll: make epoll_wait() use the hrtimer range feature	2010-10-27 18:03:18 -07:00
exec.c	exec: don't turn PF_KTHREAD off when a target command was not found	2010-10-27 18:03:13 -07:00
fcntl.c	fasync: Fix placement of FASYNC flag comment	2010-10-27 18:17:02 -07:00
fifo.c	llseek: automatically add .llseek fop	2010-10-15 15:53:27 +02:00
file_table.c	fs: allow for more than 2^31 files	2010-10-26 16:52:15 -07:00
file.c	vfs: use kmalloc() to allocate fdmem if possible	2010-08-11 08:59:02 -07:00
filesystems.c
fs_struct.c	fs: fs_struct rwlock to spinlock	2010-08-18 08:35:46 -04:00
fs-writeback.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable	2010-10-30 09:05:48 -07:00
generic_acl.c	vfs: update ctime when changing the file's permission by setfacl	2010-08-18 01:04:22 -04:00
inode.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-10-26 17:58:44 -07:00
internal.h	braino in internal.h	2010-10-29 05:49:13 -04:00
ioctl.c	fs: Add FITRIM ioctl	2010-10-27 21:30:11 -04:00
ioprio.c
Kconfig	Merge 'staging-next' to Linus's tree	2010-10-28 09:44:56 -07:00
Kconfig.binfmt	coredump: default CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y	2010-10-27 18:03:12 -07:00
libfs.c	convert get_sb_pseudo() users	2010-10-29 04:16:33 -04:00
locks.c	locks: remove fl_copy_lock lock_manager operation	2010-10-31 06:35:15 -07:00
Makefile	Merge 'staging-next' to Linus's tree	2010-10-28 09:44:56 -07:00
mbcache.c	mbcache: Limit the maximum number of cache entries	2010-08-18 06:24:41 -04:00
mpage.c
namei.c	fix open/umount race	2010-10-29 04:14:56 -04:00
namespace.c	vfs: fix infinite loop caused by clone_mnt race	2010-10-25 21:24:16 -04:00
nfsctl.c
no-block.c	llseek: automatically add .llseek fop	2010-10-15 15:53:27 +02:00
open.c	fix open/umount race	2010-10-29 04:14:56 -04:00
pipe.c	convert get_sb_pseudo() users	2010-10-29 04:16:33 -04:00
pnode.c	fs: brlock vfsmount_lock	2010-08-18 08:35:48 -04:00
pnode.h
posix_acl.c
read_write.c	readv/writev: do the same MAX_RW_COUNT truncation that read/write does	2010-10-29 10:36:49 -07:00
read_write.h
readdir.c	vfs: fix warning: 'dirent' is used uninitialized in this function	2010-08-09 20:45:05 -07:00
select.c	epoll: make epoll_wait() use the hrtimer range feature	2010-10-27 18:03:18 -07:00
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	splice: fix misuse of SPLICE_F_NONBLOCK	2010-08-07 18:52:56 +02:00
stack.c
stat.c	Mark arguments to certain syscalls as being const	2010-08-13 16:53:13 -07:00
statfs.c	add f_flags to struct statfs(64)	2010-08-09 16:48:44 -04:00
super.c	switch get_sb_ns() users	2010-10-29 04:17:03 -04:00
sync.c	get rid of file_fsync()	2010-08-09 16:47:43 -04:00
timerfd.c	llseek: automatically add .llseek fop	2010-10-15 15:53:27 +02:00
utimes.c	Mark arguments to certain syscalls as being const	2010-08-13 16:53:13 -07:00
xattr_acl.c
xattr.c	fs: xattr_handler table should be const	2010-05-21 18:31:18 -04:00