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Diffstat (limited to 'drivers/md/bitmap.h')
-rw-r--r--drivers/md/bitmap.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/md/bitmap.h b/drivers/md/bitmap.h
index e196e6a5..55ca5ae 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;