| commit | b1fca26631f76a5e8b18435a43f5d82b8734da4b | [log] [tgz] |
|---|---|---|
| author | Eric Paris <eparis@redhat.com> | Mon Mar 23 18:22:09 2009 +0100 |
| committer | Ingo Molnar <mingo@elte.hu> | Wed Apr 29 16:45:54 2009 +0200 |
| tree | 6b8e651239219e85a6b3b9238878c4a6eb4f2d9c | |
| parent | 56a50adda49b2020156616c4eb15353e0f9ad7de [diff] |
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>