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md/bitmap: remove some unused noise from bitmap.h

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Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2012-03-19 12:46:40 +11:00
parent 006a09a0ae
commit 4ba97dff71
1 changed files with 0 additions and 18 deletions
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18
drivers/md/bitmap.h
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@ -13,8 +13,6 @@
#define BITMAP_MAJOR_HI 4
#define BITMAP_MAJOR_HOSTENDIAN 3
#define BITMAP_MINOR 39
/*
* in-memory bitmap:
*
@ -101,21 +99,11 @@ typedef __u16 bitmap_counter_t;
/* same, except a mask value for more efficient bitops */
#define PAGE_COUNTER_MASK (PAGE_COUNTER_RATIO - 1)
#define BITMAP_BLOCK_SIZE 512
#define BITMAP_BLOCK_SHIFT 9
/* 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)
#define CHUNK_BLOCK_MASK(bitmap) (CHUNK_BLOCK_RATIO(bitmap) - 1)
/* when hijacked, the counters and bits represent even larger "chunks" */
/* there will be 1024 chunks represented by each counter in the page pointers */
#define PAGEPTR_BLOCK_RATIO(bitmap) \
(CHUNK_BLOCK_RATIO(bitmap) << PAGE_COUNTER_SHIFT >> 1)
#define PAGEPTR_BLOCK_SHIFT(bitmap) \
(CHUNK_BLOCK_SHIFT(bitmap) + PAGE_COUNTER_SHIFT - 1)
#define PAGEPTR_BLOCK_MASK(bitmap) (PAGEPTR_BLOCK_RATIO(bitmap) - 1)
#endif
@ -181,12 +169,6 @@ struct bitmap_page {
unsigned int count:31;
};
/* keep track of bitmap file pages that have pending writes on them */
struct page_list {
struct list_head list;
struct page *page;
};
/* the main bitmap structure - one per mddev */
struct bitmap {
struct bitmap_page *bp;