diff options
| author | Ingo Molnar <mingo@elte.hu> | 2005-08-05 17:05:27 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-08-05 18:56:41 -0400 |
| commit | 00a5dfdb93f74e4d95fb0d83c890728e331f8810 (patch) | |
| tree | f1d1043d7d02ad6bde3b158807b28bcfdafa21f6 /ipc/shm.c | |
| parent | ba02508248e90a9d696aebd18b48a3290235b53c (diff) | |
[PATCH] Fix semundo lock leakage
semundo->lock can leak if semundo->refcount goes from 2 to 1 while
another thread has it locked. This causes major problems for PREEMPT
kernels.
The simplest fix for now is to undo the single-thread optimization.
This bug was found via relentless testing by Dominik Karall.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'ipc/shm.c')
0 files changed, 0 insertions, 0 deletions