David Rientjes c9f01245b6 oom: remove oom_disable_count ... This removes mm->oom_disable_count entirely since it's unnecessary and currently buggy. The counter was intended to be per-process but it's currently decremented in the exit path for each thread that exits, causing it to underflow. The count was originally intended to prevent oom killing threads that share memory with threads that cannot be killed since it doesn't lead to future memory freeing. The counter could be fixed to represent all threads sharing the same mm, but it's better to remove the count since: - it is possible that the OOM_DISABLE thread sharing memory with the victim is waiting on that thread to exit and will actually cause future memory freeing, and - there is no guarantee that a thread is disabled from oom killing just because another thread sharing its mm is oom disabled. Signed-off-by: David Rientjes <rientjes@google.com> Reported-by: Oleg Nesterov <oleg@redhat.com> Reviewed-by: Oleg Nesterov <oleg@redhat.com> Cc: Ying Han <yinghan@google.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2011-10-31 17:30:45 -07:00
..
9p	net/9p: Convert net/9p protocol dumps to tracepoints	2011-10-24 11:13:12 -05:00
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: fix debug printk warning uncovered by cleanup	2011-08-08 12:02:43 -07:00
befs	befs: Validate length of long symbolic links.	2011-08-17 13:31:24 -07:00
bfs
btrfs	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue	2011-10-28 10:49:34 -07:00
cachefiles	kill useless checks for sb->s_op == NULL	2011-07-20 01:44:21 -04:00
ceph	libceph: fix double-free of page vector	2011-10-25 16:10:17 -07:00
cifs	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue	2011-10-28 10:49:34 -07:00
coda	fs: Convert vmalloc/memset to vzalloc	2011-09-15 13:56:28 +02:00
configfs	doc: fix broken references	2011-09-27 18:08:04 +02:00
cramfs	cramfs: get_cramfs_inode() returns ERR_PTR() on failure	2011-07-17 23:22:02 -04:00
debugfs	debugfs: Fix a comment mistake	2011-08-22 17:41:48 -07:00
devpts
dlm	Merge branch 'for-3.1' of git://linux-nfs.org/~bfields/linux	2011-07-25 22:49:19 -07:00
ecryptfs	Ecryptfs: Add mount option to check uid of device being mounted = expect uid	2011-08-09 23:29:01 -05:00
efs	make d_splice_alias(ERR_PTR(err), dentry) = ERR_PTR(err)	2011-07-20 01:44:26 -04:00
exofs	ore: Enable RAID5 mounts	2011-10-24 17:22:29 -07:00
exportfs
ext2	Merge branch 'next-evm' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/ima-2.6 into next	2011-08-09 10:31:03 +10:00
ext3	Merge branch 'next' of git://selinuxproject.org/~jmorris/linux-security	2011-10-25 09:45:31 +02:00
ext4	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue	2011-10-28 10:49:34 -07:00
fat	Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6	2011-08-18 14:16:13 -07:00
freevxfs
fscache	FS-Cache: Fix __fscache_uncache_all_inode_pages()'s outer loop	2011-07-21 10:59:16 -07:00
fuse	fuse: fix memory leak	2011-09-12 11:47:10 -07:00
gfs2	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue	2011-10-28 10:49:34 -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	hfsplus: fix filesystem size checks	2011-09-15 09:03:17 -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	hppfs: missing include	2011-07-27 22:21:58 -04:00
hugetlbfs	lockdep: Add helper function for dir vs file i_mutex annotation	2011-08-25 10:50:18 -07:00
isofs	isofs: Remove global fs lock	2011-07-22 19:42:12 -04:00
jbd
jbd2	jbd2: remove jbd2_dev_to_name() from jbd2 tracepoints	2011-07-10 22:05:08 -04:00
jffs2	Merge branch 'next-evm' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/ima-2.6 into next	2011-08-09 10:31:03 +10:00
jfs	Merge branch 'next' of git://selinuxproject.org/~jmorris/linux-security	2011-10-25 09:45:31 +02:00
lockd	SUNRPC: Replace svc_addr_u by sockaddr_storage	2011-09-14 08:21:48 -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	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue	2011-10-28 10:49:34 -07:00
nfs_common
nfsd	nfs41: implement DESTROY_CLIENTID operation	2011-10-24 04:24:30 -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	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
ntfs	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
ocfs2	Merge branch 'next-evm' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/ima-2.6 into next	2011-08-09 10:31:03 +10:00
omfs	omfs: fix (mode & S_IFDIR) abuse	2011-07-26 13:05:28 -04:00
openpromfs
partitions
proc	oom: remove oom_disable_count	2011-10-31 17:30:45 -07:00
pstore	pstore: Allow the user to explicitly choose a backend	2011-07-22 16:14:39 -07:00
qnx4
quota	VFS: Fix the remaining automounter semantics regressions	2011-09-26 19:16:46 -07:00
ramfs
reiserfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2011-10-25 12:11:02 +02:00
romfs
squashfs	doc: fix broken references	2011-09-27 18:08:04 +02:00
sysfs	sysfs: Remove support for tagged directories with untagged members (again)	2011-10-25 15:10:28 +02:00
sysv
ubifs	UBIFS: not build debug messages with CONFIG_UBIFS_FS_DEBUG disabled	2011-08-19 18:58:58 +03:00
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://oss.sgi.com/xfs/xfs	2011-10-28 10:31:42 -07:00
aio.c	Cross Memory Attach	2011-10-31 17:30:44 -07:00
anon_inodes.c	vfs: dont chain pipe/anon/socket on superblock s_inodes list	2011-07-26 12:57:09 -04:00
attr.c	Merge branch 'next-evm' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/ima-2.6 into next	2011-08-09 10:31:03 +10:00
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_dev.c	Avoid dereferencing a 'request_queue' after last close.	2011-09-10 17:20:21 +10:00
buffer.c	cleanup: vfs: small comment fix for block_invalidatepage	2011-10-28 13:55:08 +02:00
char_dev.c
compat.c	Cross Memory Attach	2011-10-31 17:30:44 -07:00
compat_binfmt_elf.c
compat_ioctl.c	compat_ioctl: add compat handler for PPPIOCGL2TPSTATS	2011-08-07 22:24:41 -07:00
dcache.c	vfs: renumber DCACHE_xyz flags, remove some stale ones	2011-08-06 22:52:40 -07:00
dcookies.c
direct-io.c	direct-io: merge direct_io_walker into __blockdev_direct_IO	2011-10-28 14:58:58 +02:00
drop_caches.c
eventfd.c
eventpoll.c	Merge branch 'master' into for-next	2011-09-15 15:08:18 +02:00
exec.c	oom: remove oom_disable_count	2011-10-31 17:30:45 -07:00
fcntl.c
fhandle.c
fifo.c
file.c
file_table.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
filesystems.c
fs-writeback.c	don't busy retry the inode on failed grab_super_passive()	2011-07-31 22:52:08 +08:00
fs_struct.c
generic_acl.c	switch posix_acl_equiv_mode() to umode_t *	2011-08-01 02:10:06 -04:00
inode.c	vfs: fix spinning prevention in prune_icache_sb	2011-10-28 14:58:55 +02:00
internal.h	superblock: move pin_sb_for_writeback() to fs/super.c	2011-07-20 01:44:38 -04:00
ioctl.c
ioprio.c
Kconfig	tmpfs: expand "help" to explain value of TMPFS_POSIX_ACL	2011-08-03 14:25:25 -10:00
Kconfig.binfmt
libfs.c	fix IN_DELETE_SELF on overwriting rename() on ramfs et.al.	2011-07-22 19:42:11 -04:00
locks.c	Merge branch 'for-3.2' of git://linux-nfs.org/~bfields/linux	2011-10-25 15:42:01 +02:00
Makefile	fs/Makefile: Stupid typo breakage of exofs inclusion	2011-10-27 08:36:51 +02:00
mbcache.c
mpage.c
namei.c	leases: fix write-open/read-lease race	2011-10-28 14:59:00 +02:00
namespace.c	vfs: add "device" tag to /proc/self/mountstats	2011-10-28 13:55:08 +02:00
no-block.c
open.c	leases: fix write-open/read-lease race	2011-10-28 14:59:00 +02:00
pipe.c	vfs: dont chain pipe/anon/socket on superblock s_inodes list	2011-07-26 12:57:09 -04:00
pnode.c
pnode.h
posix_acl.c	vfs: pass all mask flags check_acl and posix_acl_permission	2011-10-28 14:58:54 +02:00
read_write.c	Cross Memory Attach	2011-10-31 17:30:44 -07:00
read_write.h
readdir.c
select.c
seq_file.c
signalfd.c
splice.c	tmpfs: clone shmem_file_splice_read()	2011-07-25 20:57:11 -07:00
stack.c	mm: a few small updates for radix-swap	2011-08-03 14:25:24 -10:00
stat.c	vfs: remove LOOKUP_NO_AUTOMOUNT flag	2011-09-27 08:12:33 -07:00
statfs.c
super.c	Merge branch 'for-3.1/core' of git://git.kernel.dk/linux-block	2011-07-25 10:33:36 -07:00
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
utimes.c
xattr.c	evm: evm_inode_post_removexattr	2011-07-18 12:29:43 -04:00
xattr_acl.c