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md/bitmap: discard CHUNK_BLOCK_SHIFT macro

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Be redefining ->chunkshift as the shift from sectors to chunks rather
than bytes to chunks, we can just use "bitmap->chunkshift" which is
shorter than the macro call, and less indirect.

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown
2012-03-19 12:46:41 +11:00
parent 792a1d4bbf
commit 61a0d80ce4
2 changed files with 19 additions and 19 deletions
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3
drivers/md/bitmap.h
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@@ -103,7 +103,6 @@ typedef __u16 bitmap_counter_t;
/* how many blocks per chunk? (this is variable) */
#define CHUNK_BLOCK_RATIO(bitmap) ((bitmap)->mddev->bitmap_info.chunksize >> BITMAP_BLOCK_SHIFT)
#define CHUNK_BLOCK_SHIFT(bitmap) ((bitmap)->chunkshift - BITMAP_BLOCK_SHIFT)
#endif
@@ -178,7 +177,7 @@ struct bitmap {
struct mddev *mddev; /* the md device that the bitmap is for */
/* bitmap chunksize -- how much data does each bit represent? */
unsigned long chunkshift; /* chunksize = 2^chunkshift (for bitops) */
unsigned long chunkshift; /* chunksize = 2^(chunkshift+9) (for bitops) */
unsigned long chunks; /* total number of data chunks for the array */
__u64 events_cleared;