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authorJens Axboe <axboe@kernel.dk>2013-05-17 09:58:43 +0200
committerJens Axboe <axboe@kernel.dk>2013-10-25 11:55:59 +0100
commitc84a83e2aaab02a5ca64a982aa55342784934479 (patch)
tree405880cd8121ba0fb1905549cc992071d27c6ca4 /block
parente3daab6ce467199ffea12fc1b2df8f61335ce1ca (diff)
downloadlinux-c84a83e2aaab02a5ca64a982aa55342784934479.tar.bz2
smp: don't warn about csd->flags having CSD_FLAG_LOCK cleared for !wait
blk-mq reuses the request potentially immediately, since the most cache hot is always given out first. This means that rq->csd could be reused between csd->func() being called and csd_unlock() being called. This isn't a problem, since we never use wait == 1 for the smp call function. Add CSD_FLAG_WAIT to be able to tell the difference, retaining the warning for other cases. Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
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