]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
ipc,shm: shorten critical region for shmctl
authorDavidlohr Bueso <davidlohr.bueso@hp.com>
Wed, 11 Sep 2013 21:26:21 +0000 (14:26 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 11 Sep 2013 22:59:41 +0000 (15:59 -0700)
commit2caacaa82a51b78fc0c800e206473874094287ed
tree07dfe1f340d35d907de80f4a80296c72896cef2c
parentc97cb9ccab8c85428ec21eff690642ad2ce1fa8a
ipc,shm: shorten critical region for shmctl

With the *_INFO, *_STAT, IPC_RMID and IPC_SET commands already optimized,
deal with the remaining SHM_LOCK and SHM_UNLOCK commands.  Take the
shm_perm lock after doing the initial auditing and security checks.  The
rest of the logic remains unchanged.

Signed-off-by: Davidlohr Bueso <davidlohr.bueso@hp.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
ipc/shm.c