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| author | Guoqing Jiang <jiangguoqing@kylinos.cn> | 2021-07-21 10:53:15 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-08-11 19:40:28 -0600 |
| commit | 018eca456c4b4dca56aaf1ec27f309c74d0fe246 (patch) | |
| tree | 4e5c4eafcb904525cf9a822b8d6221d2d059e412 /include/linux/blkdev.h | |
| parent | 99d26de2f6d79badc80f55b54bd90d4cb9d1ad90 (diff) | |
| download | lwn-018eca456c4b4dca56aaf1ec27f309c74d0fe246.tar.gz lwn-018eca456c4b4dca56aaf1ec27f309c74d0fe246.zip | |
block: move some macros to blkdev.h
Move them (PAGE_SECTORS_SHIFT, PAGE_SECTORS and SECTOR_MASK) to the
generic header file to remove redundancy.
Signed-off-by: Guoqing Jiang <jiangguoqing@kylinos.cn>
Link: https://lore.kernel.org/r/20210721025315.1729118-1-guoqing.jiang@linux.dev
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 07eef02325b4..df404c1fb087 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -939,6 +939,10 @@ static inline struct request_queue *bdev_get_queue(struct block_device *bdev) #define SECTOR_SIZE (1 << SECTOR_SHIFT) #endif +#define PAGE_SECTORS_SHIFT (PAGE_SHIFT - SECTOR_SHIFT) +#define PAGE_SECTORS (1 << PAGE_SECTORS_SHIFT) +#define SECTOR_MASK (PAGE_SECTORS - 1) + /* * blk_rq_pos() : the current sector * blk_rq_bytes() : bytes left in the entire request |