diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2007-06-08 22:46:57 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-06-09 02:23:34 +0200 |
| commit | c0d1d2bf5a28f78def7b68ca1eb5ba31aafd43a1 (patch) | |
| tree | c51260793d12005dcc244a1304193ce9898ed9cc /.mailmap | |
| parent | sata_promise: use TF interface for polling NODATA commands (diff) | |
| download | linux-c0d1d2bf5a28f78def7b68ca1eb5ba31aafd43a1.tar.xz linux-c0d1d2bf5a28f78def7b68ca1eb5ba31aafd43a1.zip | |
rt-mutex: fix stale return value
Alexey Kuznetsov found some problems in the pi-futex code.
The major problem is a stale return value in rt_mutex_slowlock():
When the pi chain walk returns -EDEADLK, but the waiter was woken up during
the phases where the locks were dropped, the rtmutex could be acquired, but
due to the stale return value -EDEADLK returned to the caller.
Reset the return value in the retry path.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: Ulrich Drepper <drepper@redhat.com>
Cc: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '.mailmap')
0 files changed, 0 insertions, 0 deletions