projects / platform / kernel / linux-rpi.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 8b023ac) | patch
locking/rwsem: No need to check for handoff bit if wait queue empty
authorWaiman Long <longman@redhat.com>
Tue, 22 Mar 2022 15:20:57 +0000 (11:20 -0400)
committerPeter Zijlstra <peterz@infradead.org>
Tue, 5 Apr 2022 08:24:34 +0000 (10:24 +0200)
commitf9e21aa9e6fb11355e54c8949a390d49ca21cde1
tree6e6139c7bf141b171e76a16fc9495d22d2573eebtree | snapshot
parent8b023accc8df70e72f7704d29fead7ca914d6837commit | diff
locking/rwsem: No need to check for handoff bit if wait queue empty

Since commit d257cc8cb8d5 ("locking/rwsem: Make handoff bit handling
more consistent"), the handoff bit is always cleared if the wait queue
becomes empty. There is no need to check for RWSEM_FLAG_HANDOFF when
the wait list is known to be empty.

Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220322152059.2182333-2-longman@redhat.com
kernel/locking/rwsem.c diff | blob | history
Domain: System / Kernel;