Oleg Nesterov d5bbd43d5f exec: make de_thread() killable ... Change de_thread() to use KILLABLE rather than UNINTERRUPTIBLE while waiting for other threads. The only complication is that we should clear ->group_exit_task and ->notify_count before we return, and we should do this under tasklist_lock. -EAGAIN is used to match the initial signal_group_exit() check/return, it doesn't really matter. This fixes the (unlikely) race with coredump. de_thread() checks signal_group_exit() before it starts to kill the subthreads, but this can't help if another CLONE_VM (but non CLONE_THREAD) task starts the coredumping after de_thread() unlocks ->siglock. In this case the killed sub-thread can block in exit_mm() waiting for coredump_finish(), execing thread waits for that sub-thead, and the coredumping thread waits for execing thread. Deadlock. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2012-10-09 06:53:20 +09:00
..
9p	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
adfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
affs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
afs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
autofs4	make get_file() return its argument	2012-09-26 21:10:25 -04:00
befs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
bfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
btrfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
cachefiles	fs: cachefiles: add support for large files in filesystem caching	2012-07-30 17:25:21 -07:00
ceph	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client	2012-10-08 06:38:18 +09:00
cifs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
coda	fs: push rcu_barrier() from deactivate_locked_super() to filesystems	2012-10-02 21:35:55 -04:00
configfs	userns: Convert configfs to use kuid and kgid where appropriate	2012-09-18 01:01:37 -07:00
cramfs	userns: Convert cramfs to use kuid/kgid where appropriate	2012-09-21 03:13:08 -07:00
debugfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2012-10-02 11:11:09 -07:00
devpts	VFS: Pass mount flags to sget()	2012-07-14 16:38:34 +04:00
dlm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2012-10-02 13:38:27 -07:00
ecryptfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
efs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
exofs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
exportfs	switch dentry_open() to struct path, make it grab references itself	2012-07-23 00:01:29 +04:00
ext2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
ext3	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs	2012-10-04 09:14:01 -07:00
ext4	The big new feature added this time is supporting online resizing	2012-10-08 06:36:39 +09:00
fat	fat: simplify writeback_inode()	2012-10-06 03:05:12 +09:00
freevxfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
fscache	…
fuse	fs: push rcu_barrier() from deactivate_locked_super() to filesystems	2012-10-02 21:35:55 -04:00
gfs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2012-10-02 11:11:09 -07:00
hfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
hfsplus	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
hostfs	userns: Convert hostfs to use kuid and kgid where appropriate	2012-09-21 03:13:23 -07:00
hpfs	hpfs: convert to use leXX_add_cpu()	2012-10-06 03:05:08 +09:00
hppfs	switch dentry_open() to struct path, make it grab references itself	2012-07-23 00:01:29 +04:00
hugetlbfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
isofs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
jbd	jbd: Fix assertion failure in commit code due to lacking transaction credits	2012-09-12 15:52:03 +02:00
jbd2	The big new feature added this time is supporting online resizing	2012-10-08 06:36:39 +09:00
jffs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
jfs	JFS TRIM support and some minor fixes	2012-10-03 08:48:21 -07:00
lockd	close the race in nlmsvc_free_block()	2012-09-22 20:48:20 -04:00
logfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
minix	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
ncpfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
nfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
nfs_common	…
nfsd	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
nilfs2	The big new feature added this time is supporting online resizing	2012-10-08 06:36:39 +09:00
nls	nls: fix (and rename) mac NLS table files and config options	2012-06-01 19:51:22 -07:00
notify	switch simple cases of fget_light to fdget	2012-09-26 22:20:08 -04:00
ntfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
ocfs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
omfs	omfs: convert to use beXX_add_cpu()	2012-10-06 03:05:31 +09:00
openpromfs	fs: push rcu_barrier() from deactivate_locked_super() to filesystems	2012-10-02 21:35:55 -04:00
proc	fs/proc/root.c: use NULL instead of 0 for pointer	2012-10-06 03:05:19 +09:00
pstore	pstore: Avoid recursive spinlocks in the oops_in_progress case	2012-09-20 17:04:50 -07:00
qnx4	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
qnx6	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
quota	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2012-10-02 11:11:09 -07:00
ramfs	don't pass nameidata to ->create()	2012-07-14 16:34:47 +04:00
reiserfs	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs	2012-10-04 09:14:01 -07:00
romfs	fs: push rcu_barrier() from deactivate_locked_super() to filesystems	2012-10-02 21:35:55 -04:00
squashfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
sysfs	sysfs: Fix comment typo "sysf_create_link".	2012-09-04 16:11:31 -07:00
sysv	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
ubifs	No big changes for 3.7 in UBIFS:	2012-10-02 20:47:48 -07:00
udf	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs	2012-10-04 09:14:01 -07:00
ufs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
xfs	xfs: update for 3.7-rc1	2012-10-02 20:42:58 -07:00
Kconfig	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-03-21 13:36:41 -07:00
Kconfig.binfmt	coredump: make core dump functionality optional	2012-10-06 03:05:15 +09:00
Makefile	coredump: make core dump functionality optional	2012-10-06 03:05:15 +09:00
aio.c	aio: now fput() is OK from interrupt context; get rid of manual delayed __fput()	2012-07-22 23:57:59 +04:00
anon_inodes.c	anon_inodes: move allocation of anon_inode into ->mount()	2012-03-20 21:29:45 -04:00
attr.c	ima: add inode_post_setattr call	2012-09-07 14:57:46 -04:00
bad_inode.c	don't pass nameidata to ->create()	2012-07-14 16:34:47 +04:00
binfmt_aout.c	coredump: pass siginfo_t* to do_coredump() and below, not merely signr	2012-10-06 03:05:16 +09:00
binfmt_elf.c	coredump: extend core dump note section to contain file names of mapped files	2012-10-06 03:05:17 +09:00
binfmt_elf_fdpic.c	coredump: pass siginfo_t* to do_coredump() and below, not merely signr	2012-10-06 03:05:16 +09:00
binfmt_em86.c	__register_binfmt() made void	2012-03-20 21:29:46 -04:00
binfmt_flat.c	coredump: pass siginfo_t* to do_coredump() and below, not merely signr	2012-10-06 03:05:16 +09:00
binfmt_misc.c	vfs: Rename end_writeback() to clear_inode()	2012-05-06 13:43:41 +08:00
binfmt_script.c	__register_binfmt() made void	2012-03-20 21:29:46 -04:00
binfmt_som.c	VM: add "vm_mmap()" helper function	2012-04-20 17:29:13 -07:00
bio-integrity.c	…
bio.c	Merge branch 'for-linus' of git://git.kernel.dk/linux-block	2012-08-25 11:36:43 -07:00
block_dev.c	fs/block-dev.c:fix performance regression in O_DIRECT writes to md block devices	2012-08-02 09:50:39 +02:00
buffer.c	The big new feature added this time is supporting online resizing	2012-10-08 06:36:39 +09:00
char_dev.c	…
compat.c	compat: fs: Generic compat_sys_sendfile implementation	2012-10-02 21:35:55 -04:00
compat_binfmt_elf.c	coredump: extend core dump note section to contain file names of mapped files	2012-10-06 03:05:17 +09:00
compat_ioctl.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
coredump.c	coredump: pass siginfo_t* to do_coredump() and below, not merely signr	2012-10-06 03:05:16 +09:00
coredump.h	coredump: update coredump-related headers	2012-10-06 03:05:15 +09:00
dcache.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
dcookies.c	…
direct-io.c	block: move down direct IO plugging	2012-08-09 15:23:09 +02:00
drop_caches.c	…
eventfd.c	eventfd: change int to __u64 in eventfd_signal()	2012-05-31 17:49:32 -07:00
eventpoll.c	epoll: support for disabling items, and a self-test app	2012-10-06 03:05:00 +09:00
exec.c	exec: make de_thread() killable	2012-10-09 06:53:20 +09:00
fcntl.c	fcntl: fix misannotations	2012-09-26 22:20:20 -04:00
fhandle.c	switch simple cases of fget_light to fdget	2012-09-26 22:20:08 -04:00
fifo.c	fifo: Do not restart open() if it already found a partner	2012-07-16 08:33:14 -07:00
file.c	export fget_light	2012-09-26 21:10:06 -04:00
file_table.c	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2012-10-02 21:38:48 -07:00
filesystems.c	…
fs-writeback.c	The big new feature added this time is supporting online resizing	2012-10-08 06:36:39 +09:00
fs_struct.c	get rid of ->mnt_longterm	2012-07-14 16:32:47 +04:00
generic_acl.c	userns: Pass a userns parameter into posix_acl_to_xattr and posix_acl_from_xattr	2012-09-18 01:01:35 -07:00
inode.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-08-01 10:26:23 -07:00
internal.h	fs: Add freezing handling to mnt_want_write() / mnt_drop_write()	2012-07-31 09:40:38 +04:00
ioctl.c	switch simple cases of fget_light to fdget	2012-09-26 22:20:08 -04:00
ioprio.c	Merge branch 'for-3.5/core' of git://git.kernel.dk/linux-block	2012-05-30 08:52:42 -07:00
libfs.c	vfs: fix kerneldoc for generic_fh_to_parent()	2012-09-05 10:59:30 +02:00
locks.c	switch simple cases of fget_light to fdget	2012-09-26 22:20:08 -04:00
mbcache.c	…
mount.h	get rid of magic in proc_namespace.c	2012-07-14 16:32:48 +04:00
mpage.c	…
namei.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
namespace.c	do_add_mount()/umount -l races	2012-09-22 20:48:18 -04:00
no-block.c	…
open.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
pipe.c	pipe(2) - race-free error recovery	2012-09-26 21:08:52 -04:00
pnode.c	VFS: Make clone_mnt()/copy_tree()/collect_mounts() return errors	2012-07-14 16:37:27 +04:00
pnode.h	…
posix_acl.c	userns: Convert vfs posix_acl support to use kuids and kgids	2012-09-18 01:01:35 -07:00
proc_namespace.c	get rid of magic in proc_namespace.c	2012-07-14 16:32:48 +04:00
read_write.c	compat: fs: Generic compat_sys_sendfile implementation	2012-10-02 21:35:55 -04:00
read_write.h	compat: fs: Generic compat_sys_sendfile implementation	2012-10-02 21:35:55 -04:00
readdir.c	switch simple cases of fget_light to fdget	2012-09-26 22:20:08 -04:00
select.c	switch simple cases of fget_light to fdget	2012-09-26 22:20:08 -04:00
seq_file.c	userns: Make seq_file's user namespace accessible	2012-08-14 21:47:55 -07:00
signalfd.c	switch simple cases of fget_light to fdget	2012-09-26 22:20:08 -04:00
splice.c	switch simple cases of fget_light to fdget	2012-09-26 22:20:08 -04:00
stack.c	…
stat.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-10-02 20:25:04 -07:00
statfs.c	switch simple cases of fget_light to fdget	2012-09-26 22:20:08 -04:00
super.c	idr: rename MAX_LEVEL to MAX_IDR_LEVEL	2012-10-06 03:04:56 +09:00
sync.c	switch simple cases of fget_light to fdget	2012-09-26 22:20:08 -04:00
timerfd.c	switch simple cases of fget_light to fdget	2012-09-26 22:20:08 -04:00
utimes.c	switch simple cases of fget_light to fdget	2012-09-26 22:20:08 -04:00
xattr.c	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2012-10-02 21:38:48 -07:00
xattr_acl.c	userns: Pass a userns parameter into posix_acl_to_xattr and posix_acl_from_xattr	2012-09-18 01:01:35 -07:00