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authorJens Axboe <axboe@fb.com>2016-09-21 10:12:13 -0600
committerJens Axboe <axboe@fb.com>2016-09-22 14:28:38 -0600
commit1b792f2f92784c00db2e6431496e437855d6f12a (patch)
tree50c049a9056d96ebaf176d6a339f655282ff9098 /block/cfq-iosched.c
parent63581af3f31e0dbea112b83f77c4fbb6a10e1406 (diff)
downloadlinux-0-day-1b792f2f92784c00db2e6431496e437855d6f12a.tar.gz
blk-mq: add flag for drivers wanting blocking ->queue_rq()
If a driver sets BLK_MQ_F_BLOCKING, it is allowed to block in its ->queue_rq() handler. For that case, blk-mq ensures that we always calls it from a safe context. Signed-off-by: Jens Axboe <axboe@fb.com> Tested-by: Josef Bacik <jbacik@fb.com>
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