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percpu-rwsem: use synchronize_sched_expedited
author
Mikulas Patocka
<mpatocka@redhat.com>
Wed, 28 Nov 2012 03:59:52 +0000
(22:59 -0500)
committer
Linus Torvalds
<torvalds@linux-foundation.org>
Wed, 28 Nov 2012 15:33:50 +0000
(07:33 -0800)
Use synchronize_sched_expedited() instead of synchronize_sched()
to improve mount speed.
This patch improves mount time from 0.500s to 0.013s for Jeff's
test-case.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reported-and-tested-by: Jeff Chua <jeff.chua.linux@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git.openpandora.org / pandora-kernel.git / commitdiff