linux/ipc
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
..
Makefile
compat.c
compat_mq.c
ipc_sysctl.c
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
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