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| author | Pavel Begunkov <asml.silence@gmail.com> | 2021-10-14 15:03:26 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-10-18 06:17:36 -0600 |
| commit | 17220ca5ce9606c1b015c4316fca18734c2df0bb (patch) | |
| tree | 97ed1d00b00c850cc3f1cd08bf110418ccc0fd0b /include/linux/blkdev.h | |
| parent | abd45c159df5fcb7ac820e2825dac85de7c01c21 (diff) | |
| download | lwn-17220ca5ce9606c1b015c4316fca18734c2df0bb.tar.gz lwn-17220ca5ce9606c1b015c4316fca18734c2df0bb.zip | |
block: cache request queue in bdev
There are tons of places where we need to get a request_queue only
having bdev, which turns into bdev->bd_disk->queue. There are probably a
hundred of such places considering inline helpers, and enough of them
are in hot paths.
Cache queue pointer in struct block_device and make use of it in
bdev_get_queue().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/a3bfaecdd28956f03629d0ca5c63ebc096e1c809.1634219547.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 2a8689e949b4..d5b21fc8f49e 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -574,7 +574,7 @@ int iocb_bio_iopoll(struct kiocb *kiocb, unsigned int flags); static inline struct request_queue *bdev_get_queue(struct block_device *bdev) { - return bdev->bd_disk->queue; /* this is never NULL */ + return bdev->bd_queue; /* this is never NULL */ } /* |