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-rw-r--r--include/linux/blkdev.h4
-rw-r--r--include/linux/device-mapper.h1
2 files changed, 4 insertions, 1 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
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 7457d49acf9a..94f2cd6a8e83 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -151,7 +151,6 @@ 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);