Messages in this thread |  | | Date | Wed, 13 Nov 2019 11:21:15 +0100 | From | Peter Zijlstra <> | Subject | [PATCH 0/5] locking: Percpu-rwsem rewrite |
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Yet another version of the percpu-rwsem rewrite..
This one (ab)uses the waitqueue in an entirely different and unique way, but no longer shares it like it did. It retains the use of rcuwait for the writer-waiting-for-readers-to-complete condition.
This one should be FIFO fair with writer-stealing.
It seems to pass locktorture torture_type=percpu_rwsem_lock. But as always, this stuff is tricky, please look carefully.
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