| commit | 00a5dfdb93f74e4d95fb0d83c890728e331f8810 | [log] [tgz] |
|---|---|---|
| author | Ingo Molnar <mingo@elte.hu> | Fri Aug 05 23:05:27 2005 +0200 |
| committer | Linus Torvalds <torvalds@g5.osdl.org> | Fri Aug 05 15:56:41 2005 -0700 |
| tree | f1d1043d7d02ad6bde3b158807b28bcfdafa21f6 | |
| 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>