]> git.baikalelectronics.ru Git - kernel.git/commit
ipc/sem.c: synchronize the proc interface
authorManfred Spraul <manfred@colorfullife.com>
Mon, 30 Sep 2013 20:45:07 +0000 (13:45 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Mon, 30 Sep 2013 21:31:01 +0000 (14:31 -0700)
commit8dd9c8f112b26972a48d1a3f18ee632477d82bdd
tree68d0ce69d04d245b8c4236b84892ea740232d6f2
parent3bf9d99fbc218945b700e381f93cc3bb9fc793e8
ipc/sem.c: synchronize the proc interface

The proc interface is not aware of sem_lock(), it instead calls
ipc_lock_object() directly.  This means that simple semop() operations
can run in parallel with the proc interface.  Right now, this is
uncritical, because the implementation doesn't do anything that requires
a proper synchronization.

But it is dangerous and therefore should be fixed.

Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Cc: Davidlohr Bueso <davidlohr.bueso@hp.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
ipc/sem.c