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[PATCH] CFQ: bad locking in changed_ioprio()
authorJens Axboe <jens.axboe@oracle.com>
Mon, 30 Oct 2006 18:54:23 +0000 (19:54 +0100)
committerLinus Torvalds <torvalds@g5.osdl.org>
Mon, 30 Oct 2006 19:01:50 +0000 (11:01 -0800)
commitc1b707d253fe918b92882cff1dbd926b47e14fd2
tree849001799adfad5741cdfe952fadbafd66fb97e1tree | snapshot (tar.gz zip)
parent0261d6886eb5822867a5310dc1e4479b940a1942commit | diff
[PATCH] CFQ: bad locking in changed_ioprio()

When the ioprio code recently got juggled a bit, a bug was introduced.
changed_ioprio() is no longer called with interrupts disabled, so using
plain spin_lock() on the queue_lock is a bug.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
block/cfq-iosched.c diff | blob | blame | history