diff options
| author | Davidlohr Bueso <[email protected]> | 2014-07-30 13:41:53 -0700 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2014-08-13 10:32:01 +0200 |
| commit | 76916515d9d84e6552ee5e218e0ed566ad75e600 (patch) | |
| tree | ca00b7122cfa29a458ec0bc27aae2c67b1b37013 /tools/perf/util/trace-event-scripting.c | |
| parent | aa9fc0c19bee0cbc152e0e06488095fb69229236 (diff) | |
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 <[email protected]>
Acked-by: Jason Low <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: Linus Torvalds <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions