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authorJens Axboe <axboe@fb.com>2017-01-27 00:52:20 +0300
committerJens Axboe <axboe@fb.com>2017-01-27 00:52:20 +0300
commitb48fda0976a802e0fe4fc0bedefb7cf380ec6426 (patch)
tree658372c505c9b9ef2c3956e7450c928a107b6405 /block/blk-mq.h
parent5a797e00dc93593c9915841779881b15d9856237 (diff)
downloadlinux-b48fda0976a802e0fe4fc0bedefb7cf380ec6426.tar.xz
blk-mq-sched: check for successful allocation before assigning tag
We don't trigger this from the normal IO path, since we always use blocking allocations from there. But Bart saw it testing multipath dm, since that is a heavy user of atomic request allocations in the map and clone path. Reported-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Jens Axboe <axboe@fb.com>
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