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| author |   NeilBrown <neilb@suse.de> | 2012-03-19 12:46:41 +1100 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2012-03-19 12:46:41 +1100 |
| commit | 61a0d80ce4ab5b4fb9ecb38f1fb19654778b71ed (patch) | |
| tree | 21631162d46575db6645636d1c18b8797247d0c9 /drivers/md/bitmap.h | |
| parent | md/bitmap: remove unnecessary indirection when allocating. (diff) | |
| download | linux-dev-61a0d80ce4ab5b4fb9ecb38f1fb19654778b71ed.tar.xz linux-dev-61a0d80ce4ab5b4fb9ecb38f1fb19654778b71ed.zip | |
md/bitmap: discard CHUNK_BLOCK_SHIFT macro
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>
Diffstat (limited to 'drivers/md/bitmap.h')
| -rw-r--r-- | drivers/md/bitmap.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/md/bitmap.h b/drivers/md/bitmap.h index e196e6a560e8..55ca5aec84e4 100644 --- a/drivers/md/bitmap.h +++ b/drivers/md/bitmap.h @@ -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; |