Oleg Nesterov d344193a05 exit: avoid sig->count in de_thread/__exit_signal synchronization ... de_thread() and __exit_signal() use signal_struct->count/notify_count for synchronization. We can simplify the code and use ->notify_count only. Instead of comparing these two counters, we can change de_thread() to set ->notify_count = nr_of_sub_threads, then change __exit_signal() to dec-and-test this counter and notify group_exit_task. Note that __exit_signal() checks "notify_count > 0" just for symmetry with exit_notify(), we could just check it is != 0. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Roland McGrath <roland@redhat.com> Cc: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2010-05-27 09:12:46 -07:00
..
9p	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs	2010-05-24 07:41:13 -07:00
adfs	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
affs	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
afs	AFS: Don't put struct file on the stack	2010-05-21 18:31:28 -04:00
autofs	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
autofs4	fs/autofs4: use memdup_user	2010-05-27 09:12:41 -07:00
befs	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
bfs	bfs: replace inode uid,gid,mode initialization with helper function	2010-05-21 18:31:25 -04:00
btrfs	driver core: add devname module aliases to allow module on-demand auto-loading	2010-05-25 15:08:26 -07:00
cachefiles	CacheFiles: Fix error handling in cachefiles_determine_cache_security()	2010-05-12 18:23:58 -07:00
ceph	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client	2010-05-24 07:37:52 -07:00
cifs	cifs: fix noserverino handling when unix extensions are enabled	2010-05-17 20:59:21 +00:00
coda	Merge branch 'bkl/ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing	2010-05-24 08:01:10 -07:00
configfs	Fix the regression created by "set S_DEAD on unlink()..." commit	2010-05-15 07:16:33 -04:00
cramfs
debugfs	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
devpts	Simplify devpts_get_sb() failure exits	2010-05-21 18:31:12 -04:00
dlm	dlm: fix ast ordering for user locks	2010-04-30 14:52:51 -05:00
ecryptfs	switch ecryptfs_write() to struct inode *, kill on-stack fake files	2010-05-21 18:31:28 -04:00
efs
exofs	Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd	2010-05-24 07:57:41 -07:00
exportfs
ext2	ext2: replace inode uid,gid,mode init with helper	2010-05-21 18:31:24 -04:00
ext3	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-05-21 19:37:45 -07:00
ext4	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-05-21 19:37:45 -07:00
fat	fatfs: ratelimit corruption report	2010-05-25 08:07:04 -07:00
freevxfs	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
fscache	fs/fscache/object-list.c: fix warning on 32-bit	2010-05-26 08:19:23 -07:00
fuse	driver core: add devname module aliases to allow module on-demand auto-loading	2010-05-25 15:08:26 -07:00
gfs2	Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes	2010-05-25 08:17:51 -07:00
hfs	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
hfsplus	hfsplus: Push down BKL into ioctl function	2010-05-17 05:27:03 +02:00
hostfs	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
hpfs	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
hppfs	hppfs can use existing proc_mnt, no need for do_kern_mount() in there	2010-03-03 14:08:00 -05:00
hugetlbfs
isofs	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
jbd	ext3: Fix waiting on transaction during fsync	2010-05-21 19:30:41 +02:00
jbd2	Merge branch 'master' into for-2.6.35	2010-05-21 21:27:26 +02:00
jffs2	jffs2: constify xattr_handler	2010-05-21 18:31:20 -04:00
jfs	jfs: replace inode uid,gid,mode init with helper	2010-05-21 18:31:23 -04:00
lockd	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
logfs	logfs: replace inode uid,gid,mode initialization with helper function	2010-05-21 18:31:27 -04:00
minix	minix: replace inode uid,gid,mode init with helper	2010-05-21 18:31:24 -04:00
ncpfs	ncpfs: BKL ioctl pushdown	2010-05-17 05:27:42 +02:00
nfs	kernel-wide: replace USHORT_MAX, SHORT_MAX and SHORT_MIN with USHRT_MAX, SHRT_MAX and SHRT_MIN	2010-05-25 08:07:02 -07:00
nfs_common	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
nfsd	kernel-wide: replace USHORT_MAX, SHORT_MAX and SHORT_MIN with USHRT_MAX, SHRT_MAX and SHRT_MIN	2010-05-25 08:07:02 -07:00
nilfs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-05-21 19:37:45 -07:00
nls
notify	Saner locking around deactivate_super()	2010-05-21 18:31:14 -04:00
ntfs	ntfs: use add_to_page_cache_lru()	2010-05-25 08:07:03 -07:00
ocfs2	kernel-wide: replace USHORT_MAX, SHORT_MAX and SHORT_MIN with USHRT_MAX, SHRT_MAX and SHRT_MIN	2010-05-25 08:07:02 -07:00
omfs	omfs: replace inode uid,gid,mode initialization with helper function	2010-05-21 18:31:25 -04:00
openpromfs
partitions	fs: ldm: don't use own implementation of hex_to_bin()	2010-05-25 08:07:06 -07:00
proc	pagemap: add #ifdefs CONFIG_HUGETLB_PAGE on code walking hugetlb vma	2010-05-25 08:06:58 -07:00
qnx4	fs/qnx4: decrement sizeof size in strncmp	2010-02-04 11:55:46 +01:00
quota	new helper: iterate_supers()	2010-05-21 18:31:16 -04:00
ramfs	ramfs: replace inode uid,gid,mode initialization with helper function	2010-05-21 18:31:26 -04:00
reiserfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-05-21 19:37:45 -07:00
romfs	fix leak in romfs_fill_super()	2010-01-26 22:22:26 -05:00
smbfs	smbfs: remove duplicated #include	2010-05-25 08:07:07 -07:00
squashfs	squashfs: fix name reading in squashfs_xattr_get	2010-05-23 08:27:42 +01:00
sysfs	sysfs: add struct file* to bin_attr callbacks	2010-05-21 09:37:31 -07:00
sysv	sysv: replace inode uid,gid,mode initialization with helper function	2010-05-21 18:31:26 -04:00
ubifs	ubifs: replace inode uid,gid,mode initialization with helper function	2010-05-21 18:31:26 -04:00
udf	udf: replace inode uid,gid,mode init with helper	2010-05-21 18:31:27 -04:00
ufs	ufs: permit mounting of BorderWare filesystems	2010-05-27 09:12:43 -07:00
xfs	Merge branch 'delayed-logging-for-2.6.35' into for-linus	2010-05-24 11:57:36 -05:00
aio.c
anon_inodes.c	anon_inode: set S_IFREG on the anon_inode	2010-05-21 18:31:20 -04:00
attr.c	fs: use rlimit helpers	2010-03-06 11:26:29 -08:00
bad_inode.c
binfmt_aout.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
binfmt_elf.c	coredump: pass mm->flags as a coredump parameter for consistency	2010-03-06 11:26:46 -08:00
binfmt_elf_fdpic.c	Remove redundant check for CONFIG_MMU	2010-04-27 09:01:26 -07:00
binfmt_em86.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
binfmt_flat.c	uclinux: error message when FLAT reloc symbol is invalid, v2	2010-04-21 13:28:49 +10:00
binfmt_misc.c
binfmt_script.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
binfmt_som.c	Split 'flush_old_exec' into two functions	2010-01-29 08:22:01 -08:00
bio-integrity.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
bio.c	Merge branch 'master' into for-linus	2010-03-19 08:05:10 +01:00
block_dev.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-05-21 19:37:45 -07:00
buffer.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-05-21 19:37:45 -07:00
char_dev.c
compat.c	revert "procfs: provide stack information for threads" and its fixup commits	2010-05-11 17:33:41 -07:00
compat_binfmt_elf.c	elf coredump: replace ELF_CORE_EXTRA_* macros by functions	2010-03-06 11:26:45 -08:00
compat_ioctl.c	pktcdvd: improve BKL and compat_ioctl.c usage	2010-04-29 08:44:37 -07:00
dcache.c	fix prune_dcache()/umount() race	2010-05-21 18:31:16 -04:00
dcookies.c
direct-io.c
drop_caches.c	new helper: iterate_supers()	2010-05-21 18:31:16 -04:00
eventfd.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
eventpoll.c	sched, wait: Use wrapper functions	2010-05-11 17:43:58 +02:00
exec.c	exit: avoid sig->count in de_thread/__exit_signal synchronization	2010-05-27 09:12:46 -07:00
fcntl.c	Merge branch 'master' into for-2.6.35	2010-05-21 21:27:26 +02:00
fifo.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
file.c	fs: use rlimit helpers	2010-03-06 11:26:29 -08:00
file_table.c	vfs: take f_lock on modifying f_mode after open time	2010-03-06 11:26:25 -08:00
filesystems.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
fs-writeback.c	fs-writeback: check sync bit earlier in inode_wait_for_writeback	2010-05-25 08:07:00 -07:00
fs_struct.c
generic_acl.c	fs: xattr_handler table should be const	2010-05-21 18:31:18 -04:00
inode.c	vfs: Add inode uid,gid,mode init helper	2010-05-21 18:31:22 -04:00
internal.h	Bury __put_super_and_need_restart()	2010-05-21 18:31:16 -04:00
ioctl.c	Introduce freeze_super and thaw_super for the fsfreeze ioctl	2010-05-21 18:31:18 -04:00
ioprio.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
Kconfig	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client	2010-03-19 09:43:06 -07:00
Kconfig.binfmt
libfs.c	FS / libfs: Implement simple_write_to_buffer	2010-05-10 23:08:17 +02:00
locks.c	Merge branch 'for-next' into for-linus	2010-03-08 16:55:37 +01:00
Makefile	Take statfs variants to fs/statfs.c	2010-05-21 18:31:17 -04:00
mbcache.c
mpage.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
namei.c	namei.c : update mnt when it needed	2010-05-21 18:31:22 -04:00
namespace.c	Merge branch 'next' into for-linus	2010-05-18 08:57:00 +10:00
nfsctl.c	Switch may_open() and break_lease() to passing O_...	2010-03-03 13:00:21 -05:00
no-block.c
open.c	Take statfs variants to fs/statfs.c	2010-05-21 18:31:17 -04:00
pipe.c	pipe: set lower and upper limit on max pages in the pipe page array	2010-05-21 21:12:52 +02:00
pnode.c	Kill CL_PROPAGATION, sanitize fs/pnode.c:get_source()	2010-03-03 13:00:22 -05:00
pnode.h	VFS: Clean up shared mount flag propagation	2010-03-03 14:07:55 -05:00
posix_acl.c
read_write.c	do_sync_read/write() should set kiocb.ki_nbytes to be consistent	2010-03-24 16:43:29 -07:00
read_write.h
readdir.c
select.c	Add generic sys_old_select()	2010-03-12 15:52:32 -08:00
seq_file.c	seq_file: fix new kernel-doc warnings	2010-03-07 15:48:26 -08:00
signalfd.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
splice.c	pipe: add support for shrinking and growing pipes	2010-05-21 21:12:40 +02:00
stack.c
stat.c
statfs.c	Take statfs variants to fs/statfs.c	2010-05-21 18:31:17 -04:00
super.c	vfs: add lockdep annotation to s_vfs_rename_key for ecryptfs	2010-05-21 18:31:22 -04:00
sync.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-05-21 19:37:45 -07:00
timerfd.c	fs/timerfd.c: make use of wait_event_interruptible_locked_irq()	2010-05-20 13:21:42 -07:00
utimes.c
xattr.c	fs: xattr_handler table should be const	2010-05-21 18:31:18 -04:00
xattr_acl.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00