Michal Hocko 91f4f94ea3 ipc, shm: make shmem attach/detach wait for mmap_sem killable ... shmat and shmdt rely on mmap_sem for write. If the waiting task gets killed by the oom killer it would block oom_reaper from asynchronous address space reclaim and reduce the chances of timely OOM resolving. Wait for the lock in the killable mode and return with EINTR if the task got killed while waiting. Signed-off-by: Michal Hocko <mhocko@suse.com> Acked-by: Davidlohr Bueso <dave@stgolabs.net> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2016-05-23 17:04:14 -07:00
..
compat.c	ipc: resolve shadow warnings	2014-10-14 02:18:23 +02:00
compat_mq.c
ipc_sysctl.c	ipc/msg: increase MSGMNI, remove scaling	2014-12-13 12:42:52 -08:00
Makefile	ipc/msg: increase MSGMNI, remove scaling	2014-12-13 12:42:52 -08:00
mq_sysctl.c
mqueue.c	mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros	2016-04-04 10:41:08 -07:00
msg.c	Initialize msg/shm IPC objects before doing ipc_addid()	2015-09-30 12:48:40 -04:00
msgutil.c	ipc,msg: drop dst nil validation in copy_msg	2015-11-06 17:50:42 -08:00
namespace.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2014-12-16 15:53:03 -08:00
sem.c	ipc/sem: make semctl setting sempid consistent	2016-03-22 15:36:02 -07:00
shm.c	ipc, shm: make shmem attach/detach wait for mmap_sem killable	2016-05-23 17:04:14 -07:00
syscall.c
util.c	tree wide: use kvfree() than conditional kfree()/vfree()	2016-01-22 17:02:18 -08:00
util.h	tree wide: use kvfree() than conditional kfree()/vfree()	2016-01-22 17:02:18 -08:00