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| author | Eric Paris <eparis@redhat.com> | 2009-03-23 17:22:09 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-04-29 14:45:54 (GMT) |
| commit | b1fca26631f76a5e8b18435a43f5d82b8734da4b (patch) | |
| tree | 6b8e651239219e85a6b3b9238878c4a6eb4f2d9c /kernel/sys.c | |
| parent | 56a50adda49b2020156616c4eb15353e0f9ad7de (diff) | |
| download | linux-fsl-qoriq-b1fca26631f76a5e8b18435a43f5d82b8734da4b.tar.xz | |
mutex: add atomic_dec_and_mutex_lock()
Much like the atomic_dec_and_lock() function in which we take an hold a
spin_lock if we drop the atomic to 0 this function takes and holds the
mutex if we dec the atomic to 0.
Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Orig-LKML-Reference: <20090323172417.410913479@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sys.c')
0 files changed, 0 insertions, 0 deletions