| commit | 9fcc15ec3c1c287a781a4620e52522b6186f26f6 | |
| author | Bjorn Steinbrink <B.Steinbrink@gmx.de> | |
| Fri, 1 Jun 2007 07:47:15 +0000 (1 00:47 -0700) | ||
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | |
| Fri, 1 Jun 2007 15:18:30 +0000 (1 08:18 -0700) | ||
| tree | 86a0214fc404c0ca6e0ca283c83f22bd15aa2eb4 | treesnapshot (tar.gz zip) |
| parent | c79d9c9e9ace5eeae54f484f62fbd86bf27a344a | commitdiff |
timer statistics: fix race
Fix two races in the timer stats lookup code. One by ensuring that the
initialization of a new entry is finished upon insertion of that entry.
The other by cleaning up the hash table when the entries array is cleared,
so that we don't have any "pre-inserted" entries.
Thanks to Eric Dumazet for reminding me of the memory barriers.
Signed-off-by: Bjorn Steinbrink <B.Steinbrink@gmx.de>
Signed-off-by: Ian Kumlien <pomac@vapor.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Eric Dumazet <dada1@cosmosbay.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix two races in the timer stats lookup code. One by ensuring that the
initialization of a new entry is finished upon insertion of that entry.
The other by cleaning up the hash table when the entries array is cleared,
so that we don't have any "pre-inserted" entries.
Thanks to Eric Dumazet for reminding me of the memory barriers.
Signed-off-by: Bjorn Steinbrink <B.Steinbrink@gmx.de>
Signed-off-by: Ian Kumlien <pomac@vapor.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Eric Dumazet <dada1@cosmosbay.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| kernel/time/timer_stats.c | diffblobblamehistory |