Messages in this thread | | | From | Waiman Long <> | Subject | [PATCH-tip 0/3] locking/rwsem: Minor twists to improve rwsem performance | Date | Wed, 22 Feb 2017 13:03:51 -0500 |
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Patch 1 checks wait_list without lock when spinners are present.
Patch 2 moves down the rwsem_down_read_failed() function after the optimistic spinning section so that functions in that section can be used.
Patch 3 undoes active read lock ASAP when either the spinners are present or the trylock fails.
Waiman Long (3): locking/rwsem: Check wait_list without lock if spinner present locking/rwsem: move down rwsem_down_read_failed() locking/rwsem: Stop active read lock ASAP
kernel/locking/rwsem-xadd.c | 126 +++++++++++++++++++++++++++----------------- 1 file changed, 78 insertions(+), 48 deletions(-)
-- 1.8.3.1
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