| commit | 7be6d991bca63bbcdc5bc3b09789f367a3486537 | |
| author | André Goddard Rosa <andre.goddard@gmail.com> | |
| Wed, 16 Dec 2009 00:47:39 +0000 (15 16:47 -0800) | ||
| committer | Linus Torvalds <torvalds@linux-foundation.org> | |
| Wed, 16 Dec 2009 15:20:12 +0000 (16 07:20 -0800) | ||
| tree | 79168c345c424ce7b80bfba382c9dc469bdcc70a | treesnapshot (tar.gz zip) |
| parent | 698ba7b5a3a7be772922340fade365c675b8243f | commitdiff |
pid: tighten pidmap spinlock critical section by removing kfree()
Avoid calling kfree() under pidmap spinlock, calling it afterwards.
Normally kfree() is fast, but sometimes it can be slow, so avoid
calling it under the spinlock if we can do it.
Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Avoid calling kfree() under pidmap spinlock, calling it afterwards.
Normally kfree() is fast, but sometimes it can be slow, so avoid
calling it under the spinlock if we can do it.
Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| kernel/pid.c | diffblobblamehistory |