There are too many PAGE_SECTORS definitions, and all of them are the same. It looks a bit of a mess. So why not move it into <linux/blkdev.h>, to achieve a basic and unique definition. Signed-off-by: Zhen Lei <thunder.leizhen@xxxxxxxxxx> --- drivers/block/brd.c | 1 - drivers/block/null_blk_main.c | 1 - drivers/md/bcache/util.h | 2 -- include/linux/blkdev.h | 5 +++-- include/linux/device-mapper.h | 1 - 5 files changed, 3 insertions(+), 7 deletions(-) diff --git a/drivers/block/brd.c b/drivers/block/brd.c index 2723a70eb855936..24c4687694b9f49 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -26,7 +26,6 @@ #include <linux/uaccess.h> #define PAGE_SECTORS_SHIFT (PAGE_SHIFT - SECTOR_SHIFT) -#define PAGE_SECTORS (1 << PAGE_SECTORS_SHIFT) /* * Each block ramdisk device has a radix_tree brd_pages of pages that stores diff --git a/drivers/block/null_blk_main.c b/drivers/block/null_blk_main.c index 47a9dad880af2aa..0624a26b86453ce 100644 --- a/drivers/block/null_blk_main.c +++ b/drivers/block/null_blk_main.c @@ -12,7 +12,6 @@ #include "null_blk.h" #define PAGE_SECTORS_SHIFT (PAGE_SHIFT - SECTOR_SHIFT) -#define PAGE_SECTORS (1 << PAGE_SECTORS_SHIFT) #define SECTOR_MASK (PAGE_SECTORS - 1) #define FREE_BATCH 16 diff --git a/drivers/md/bcache/util.h b/drivers/md/bcache/util.h index c029f7443190805..55196e0f37c32c6 100644 --- a/drivers/md/bcache/util.h +++ b/drivers/md/bcache/util.h @@ -15,8 +15,6 @@ #include "closure.h" -#define PAGE_SECTORS (PAGE_SIZE / 512) - struct closure; #ifdef CONFIG_BCACHE_DEBUG diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index bb5636cc17b91a7..b068dfc5f2ef0ab 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -949,11 +949,12 @@ static inline struct request_queue *bdev_get_queue(struct block_device *bdev) * multiple of 512 bytes. Hence these two constants. */ #ifndef SECTOR_SHIFT -#define SECTOR_SHIFT 9 +#define SECTOR_SHIFT 9 #endif #ifndef SECTOR_SIZE -#define SECTOR_SIZE (1 << SECTOR_SHIFT) +#define SECTOR_SIZE (1 << SECTOR_SHIFT) #endif +#define PAGE_SECTORS (PAGE_SIZE / SECTOR_SIZE) /* * blk_rq_pos() : the current sector diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index 93096e524e43945..ffccce9b700c326 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -143,7 +143,6 @@ typedef size_t (*dm_dax_copy_iter_fn)(struct dm_target *ti, pgoff_t pgoff, void *addr, size_t bytes, struct iov_iter *i); typedef int (*dm_dax_zero_page_range_fn)(struct dm_target *ti, pgoff_t pgoff, size_t nr_pages); -#define PAGE_SECTORS (PAGE_SIZE / 512) void dm_error(const char *message); -- 1.8.3
