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Groups > linux.kernel > #1586362
| From | Waiman Long <longman@redhat.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH-tip 0/3] locking/rwsem: Minor twists to improve rwsem performance |
| Date | 2017-02-22 19:10 +0100 |
| Message-ID | <tdJwt-5DY-5@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
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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[PATCH-tip 0/3] locking/rwsem: Minor twists to improve rwsem performance Waiman Long <longman@redhat.com> - 2017-02-22 19:10 +0100
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