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| author | Jens Axboe <axboe@kernel.dk> | 2021-10-06 15:15:04 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-10-19 14:53:22 +0300 |
| commit | db9a02baa23267c695a44234a0f2f4607992780e (patch) | |
| tree | 5763bbfbcb0774571843d21bcd340cc219ff397b /include/linux/genhd.h | |
| parent | e0d78afeb8d190164a823d5ef5821b0b3802af33 (diff) | |
| download | linux-db9a02baa23267c695a44234a0f2f4607992780e.tar.xz | |
block: move bdev_read_only() into the header
This is called for every write in the fast path, move it inline next
to get_disk_ro() which is called internally.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/genhd.h')
| -rw-r--r-- | include/linux/genhd.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/genhd.h b/include/linux/genhd.h index cd4038fd5743..c70bc5fce4db 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -221,6 +221,11 @@ static inline int get_disk_ro(struct gendisk *disk) test_bit(GD_READ_ONLY, &disk->state); } +static inline int bdev_read_only(struct block_device *bdev) +{ + return bdev->bd_read_only || get_disk_ro(bdev->bd_disk); +} + extern void disk_block_events(struct gendisk *disk); extern void disk_unblock_events(struct gendisk *disk); extern void disk_flush_events(struct gendisk *disk, unsigned int mask); |