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authorJens Axboe <axboe@kernel.dk>2018-11-15 12:22:51 -0700
committerJens Axboe <axboe@kernel.dk>2018-11-16 08:34:06 -0700
commit344e9ffcbd1898e1dc04085564a6e05c30ea8199 (patch)
treeba71320bc66d1158790acf1cdeedd21d2da9dead /include/linux/blkdev.h
parentdabcefab45d36ecb5a22f16577bb0f298876a22d (diff)
block: add queue_is_mq() helper
Various spots check for q->mq_ops being non-NULL, but provide a helper to do this instead. Where the ->mq_ops != NULL check is redundant, remove it. Since mq == rq-based now that legacy is gone, get rid of the queue_is_rq_based() and just use queue_is_mq() everywhere. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/blkdev.h')
-rw-r--r--include/linux/blkdev.h6
1 files changed, 1 insertions, 5 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 1d185f1fc333..41aaa05e42c1 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -656,11 +656,7 @@ static inline bool blk_account_rq(struct request *rq)
#define rq_data_dir(rq) (op_is_write(req_op(rq)) ? WRITE : READ)
-/*
- * Driver can handle struct request, if it either has an old style
- * request_fn defined, or is blk-mq based.
- */
-static inline bool queue_is_rq_based(struct request_queue *q)
+static inline bool queue_is_mq(struct request_queue *q)
{
return q->mq_ops;
}