summaryrefslogtreecommitdiffstats
path: root/kernel/semaphore.c
diff options
context:
space:
mode:
authorEric Paris <eparis@redhat.com>2009-03-23 18:22:09 +0100
committerIngo Molnar <mingo@elte.hu>2009-04-06 09:30:26 +0200
commit9ab772cd535c4b256a577eae516f9c7462346b2d (patch)
tree55af69a2eaeaa952f447b74cce74eee9f82cfaf9 /kernel/semaphore.c
parent37d81828385f8ff823caaaf1a83e72d065b6cfa1 (diff)
downloadlinux-9ab772cd535c4b256a577eae516f9c7462346b2d.tar.bz2
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/semaphore.c')
0 files changed, 0 insertions, 0 deletions