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authorWaiman Long <[email protected]>2019-04-04 13:43:13 -0400
committerIngo Molnar <[email protected]>2019-04-10 10:56:01 +0200
commita338ecb07a338c9a8b0ca0010e862ebe598b1551 (patch)
tree8dae984357ba838cd16a28c8dbc099edf0ebd473 /tools/perf/scripts/python/export-to-postgresql.py
parent12a30a7fc142a123c61da9623bd824d95d36c12e (diff)
locking/rwsem: Micro-optimize rwsem_try_read_lock_unqueued()
The atomic_long_cmpxchg_acquire() in rwsem_try_read_lock_unqueued() is replaced by atomic_long_try_cmpxchg_acquire() to simpify the code and generate slightly better assembly code. There is no functional change. Signed-off-by: Waiman Long <[email protected]> Acked-by: Peter Zijlstra <[email protected]> Acked-by: Will Deacon <[email protected]> Acked-by: Davidlohr Bueso <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Davidlohr Bueso <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Paul E. McKenney <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Tim Chen <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
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