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| author | Davidlohr Bueso | 2014-07-30 22:41:53 +0200 |
|---|---|---|
| committer | Ingo Molnar | 2014-08-13 10:32:01 +0200 |
| commit | 76916515d9d84e6552ee5e218e0ed566ad75e600 (patch) | |
| tree | ca00b7122cfa29a458ec0bc27aae2c67b1b37013 /sound/isa/als100.c | |
| parent | locking/mcs: Remove obsolete comment (diff) | |
| download | kernel-qcow2-linux-76916515d9d84e6552ee5e218e0ed566ad75e600.tar.gz kernel-qcow2-linux-76916515d9d84e6552ee5e218e0ed566ad75e600.tar.xz kernel-qcow2-linux-76916515d9d84e6552ee5e218e0ed566ad75e600.zip | |
locking/mutexes: Refactor optimistic spinning code
When we fail to acquire the mutex in the fastpath, we end up calling
__mutex_lock_common(). A *lot* goes on in this function. Move out the
optimistic spinning code into mutex_optimistic_spin() and simplify
the former a bit. Furthermore, this is similar to what we have in
rwsems. No logical changes.
Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Acked-by: Jason Low <jason.low2@hp.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: aswin@hp.com
Cc: mingo@kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1406752916-3341-4-git-send-email-davidlohr@hp.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'sound/isa/als100.c')
0 files changed, 0 insertions, 0 deletions