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linux/fs
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Andrew Morton 02d2116887 revert "percpu_counter: new function percpu_counter_sum_and_set" 
Revert

    commit e8ced39d5e
    Author: Mingming Cao <cmm@us.ibm.com>
    Date:   Fri Jul 11 19:27:31 2008 -0400

        percpu_counter: new function percpu_counter_sum_and_set

As described in

	revert "percpu counter: clean up percpu_counter_sum_and_set()"

the new percpu_counter_sum_and_set() is racy against updates to the
cpu-local accumulators on other CPUs.  Revert that change.

This means that ext4 will be slow again.  But correct.

Reported-by: Eric Dumazet <dada1@cosmosbay.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mingming Cao <cmm@us.ibm.com>
Cc: <linux-ext4@vger.kernel.org>
Cc: <stable@kernel.org>		[2.6.27.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-12-10 08:01:52 -08:00
..
9p 9p: fix format warning 2008-10-22 18:48:45 -05:00
adfs vfs: Use const for kernel parser table 2008-10-13 10:10:37 -07:00
affs vfs: Use const for kernel parser table 2008-10-13 10:10:37 -07:00
afs [PATCH] fix ->llseek for more directories 2008-10-23 05:13:21 -04:00
autofs vfs: Use const for kernel parser table 2008-10-13 10:10:37 -07:00
autofs4 autofs4: collect version check return 2008-11-06 15:41:17 -08:00
befs befs: annotate fs32 on tests for superblock endianness 2008-10-16 11:21:46 -07:00
bfs [PATCH] fix ->llseek for more directories 2008-10-23 05:13:21 -04:00
cifs [CIFS] fix regression in cifs_write_begin/cifs_write_end 2008-11-26 19:32:33 +00:00
coda Switch to a valid email address... 2008-10-27 08:40:17 -07:00
configfs [PATCH] assorted path_lookup() -> kern_path() conversions 2008-10-23 05:12:52 -04:00
cramfs cramfs: fix named-pipe handling 2008-08-20 15:40:32 -07:00
debugfs integrity: special fs magic 2008-10-13 09:47:43 +11:00
devpts vfs: Use const for kernel parser table 2008-10-13 10:10:37 -07:00
dlm dlm: fix shutdown cleanup 2008-11-13 13:22:34 -06:00
ecryptfs eCryptfs: Allocate up to two scatterlists for crypto ops on keys 2008-11-19 18:49:58 -08:00
efs [PATCH] switch all filesystems over to d_obtain_alias 2008-10-23 05:13:01 -04:00
exportfs EXPORTFS: handle NULL returns from fh_to_dentry()/fh_to_parent() 2008-12-08 19:49:32 -08:00
ext2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev 2008-10-23 10:23:07 -07:00
ext3 ext3: Clean up outdated and incorrect comment for ext3_write_super() 2008-11-12 17:17:17 -08:00
ext4 revert "percpu_counter: new function percpu_counter_sum_and_set" 2008-12-10 08:01:52 -08:00
fat fat: i_blocks warning fix 2008-11-06 15:41:22 -08:00
freevxfs
fuse saner FASYNC handling on file close 2008-11-01 09:49:46 -07:00
gfs2 [PATCH] switch all filesystems over to d_obtain_alias 2008-10-23 05:13:01 -04:00
hfs [PATCH] move executable checking into ->permission() 2008-10-23 05:13:25 -04:00
hfsplus [PATCH] move executable checking into ->permission() 2008-10-23 05:13:25 -04:00
hostfs hostfs: fix a duplicated global function name 2008-11-19 18:50:00 -08:00
hpfs [PATCH] hpfs: cleanup ->setattr 2008-10-23 05:12:58 -04:00
hppfs
hugetlbfs vfs: Use const for kernel parser table 2008-10-13 10:10:37 -07:00
isofs [PATCH] switch all filesystems over to d_obtain_alias 2008-10-23 05:13:01 -04:00
jbd jbd: don't give up looking for space so easily in __log_wait_for_space 2008-11-06 22:37:59 -05:00
jbd2 jbd2: don't give up looking for space so easily in __jbd2_log_wait_for_space 2008-11-06 22:38:07 -05:00
jffs2 Merge git://git.infradead.org/mtd-2.6 2008-11-06 15:43:13 -08:00
jfs Merge git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev 2008-10-23 10:23:07 -07:00
lockd NLM: client-side nlm_lookup_host() should avoid matching on srcaddr 2008-11-24 13:29:07 -06:00
minix
ncpfs
nfs NFS: Convert nfs_attr_generation_counter into an atomic_long 2008-10-28 15:21:40 -04:00
nfs_common
nfsd nfsd: use of unitialized list head on error exit in nfs4recover.c 2008-11-24 10:36:09 -06:00
nls remove CONFIG_KMOD from fs 2008-10-17 02:38:36 +11:00
ntfs ntfs: don't fool kernel-doc 2008-12-01 19:55:25 -08:00
ocfs2 ocfs2: fix regression in ocfs2_read_blocks_sync() 2008-12-01 14:46:58 -08:00
omfs [PATCH] fix ->llseek for more directories 2008-10-23 05:13:21 -04:00
openpromfs [PATCH] fix ->llseek for more directories 2008-10-23 05:13:21 -04:00
partitions block/md: fix md autodetection 2008-11-18 15:08:56 +01:00
proc Fix broken ownership of /proc/sys/ files 2008-11-16 15:09:52 -08:00
qnx4
ramfs Ramfs and Ram Disk pages are unevictable 2008-10-20 08:50:26 -07:00
reiserfs Merge git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev 2008-10-23 10:23:07 -07:00
romfs
smbfs
sysfs [PATCH] fix ->llseek for more directories 2008-10-23 05:13:21 -04:00
sysv
ubifs UBIFS: pre-allocate bulk-read buffer 2008-11-21 18:59:33 +02:00
udf udf: Fix BUG_ON() in destroy_inode() 2008-11-27 17:38:28 +01:00
ufs [PATCH] fix ->llseek for more directories 2008-10-23 05:13:21 -04:00
xfs [XFS] Fix hang after disallowed rename across directory quota domains 2008-12-05 15:39:13 +11:00
aio.c
anon_inodes.c
attr.c [patch] vfs: make security_inode_setattr() calling consistent 2008-10-23 05:13:27 -04:00
bad_inode.c
binfmt_aout.c
binfmt_elf_fdpic.c binfmt_elf_fdpic: Update for cputime changes. 2008-10-20 20:17:18 -07:00
binfmt_elf.c Merge branch 'v28-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-10-20 13:19:56 -07:00
binfmt_em86.c Allow recursion in binfmt_script and binfmt_misc 2008-10-16 11:21:38 -07:00
binfmt_flat.c uclinux: fix gzip header parsing in binfmt_flat.c 2008-10-16 11:21:29 -07:00
binfmt_misc.c Allow recursion in binfmt_script and binfmt_misc 2008-10-16 11:21:38 -07:00
binfmt_script.c Allow recursion in binfmt_script and binfmt_misc 2008-10-16 11:21:38 -07:00
binfmt_som.c binfmt_som.c: add MODULE_LICENSE 2008-10-16 11:21:38 -07:00
bio-integrity.c block: Introduce integrity data ownership flag 2008-10-09 08:56:21 +02:00
bio.c block: mark bio_split_pool static 2008-10-09 08:57:05 +02:00
block_dev.c [PATCH 1/2] kill FMODE_NDELAY_NOW 2008-12-04 04:22:57 -05:00
buffer.c udf: Fix BUG_ON() in destroy_inode() 2008-11-27 17:38:28 +01:00
char_dev.c [PATCH] tidy up chrdev_open 2008-10-23 05:12:59 -04:00
compat_binfmt_elf.c
compat_ioctl.c
compat.c select: deal with math overflow from borderline valid userland data 2008-10-26 11:22:08 -07:00
dcache.c [PATCH] fs: add a sanity check in d_free 2008-10-23 05:17:12 -04:00
dcookies.c
direct-io.c Remove Andrew Morton's old email accounts 2008-10-16 11:21:32 -07:00
dnotify.c
dquot.c [PATCH] switch quota_on-related stuff to kern_path() 2008-10-23 05:12:44 -04:00
drop_caches.c
eventfd.c
eventpoll.c epoll: introduce resource usage limits 2008-12-01 19:55:24 -08:00
exec.c coredump: format_corename: don't append .%pid if multi-threaded 2008-10-20 08:52:39 -07:00
fcntl.c Fix a race condition in FASYNC handling 2008-12-05 15:35:10 -08:00
fifo.c [PATCH] introduce fmode_t, do annotations 2008-10-21 07:47:06 -04:00
file_table.c saner FASYNC handling on file close 2008-11-01 09:49:46 -07:00
file.c
filesystems.c proc: move /proc/filesystems to fs/filesystems.c 2008-10-23 14:27:09 +04:00
fs-writeback.c Remove Andrew Morton's old email accounts 2008-10-16 11:21:32 -07:00
generic_acl.c
inode.c fs/inode.c: properly init address_space->writeback_index 2008-08-15 08:35:44 -07:00
inotify_user.c saner FASYNC handling on file close 2008-11-01 09:49:46 -07:00
inotify.c Fix inotify watch removal/umount races 2008-11-15 12:26:44 -08:00
internal.h
ioctl.c Fix a race condition in FASYNC handling 2008-12-05 15:35:10 -08:00
ioprio.c fix setpriority(PRIO_PGRP) thread iterator breakage 2008-08-20 15:40:32 -07:00
Kconfig [patch 1/3] FS_MBCACHE: don't needlessly make it built-in 2008-10-23 05:13:26 -04:00
Kconfig.binfmt add CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS 2008-10-20 08:52:39 -07:00
libfs.c fs: remove prepare_write/commit_write 2008-10-30 11:38:45 -07:00
locks.c Merge branch 'proc' of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc 2008-10-23 12:04:37 -07:00
Makefile fat: move fs/vfat/* and fs/msdos/* to fs/fat 2008-11-06 15:41:20 -08:00
mbcache.c
mpage.c Remove Andrew Morton's old email accounts 2008-10-16 11:21:32 -07:00
namei.c don't unlink an active swapfile 2008-11-19 18:49:59 -08:00
namespace.c vfs: fix shrink_submounts 2008-11-12 17:17:17 -08:00
nfsctl.c
no-block.c
open.c [PATCH] introduce fmode_t, do annotations 2008-10-21 07:47:06 -04:00
pipe.c saner FASYNC handling on file close 2008-11-01 09:49:46 -07:00
pnode.c
pnode.h
posix_acl.c
quota_v1.c
quota_v2.c
quota.c
read_write.c [PATCH] generic_file_llseek tidyups 2008-10-23 05:12:59 -04:00
read_write.h
readdir.c [PATCH] prepare vfs_readdir() callers to returning filldir result 2008-10-23 05:13:10 -04:00
select.c select: deal with math overflow from borderline valid userland data 2008-10-26 11:22:08 -07:00
seq_file.c seq_file: add seq_cpumask_list(), seq_nodemask_list() 2008-10-20 08:52:39 -07:00
signalfd.c
splice.c fs: remove prepare_write/commit_write 2008-10-30 11:38:45 -07:00
stack.c
stat.c
super.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev 2008-10-23 10:23:07 -07:00
sync.c
timerfd.c hrtimer: convert timerfd to the new hrtimer apis 2008-09-05 21:35:09 -07:00
utimes.c
xattr_acl.c
xattr.c