diff options
| -rw-r--r-- | drivers/md/bitmap.c | 35 | ||||
| -rw-r--r-- | drivers/md/bitmap.h | 3 |
2 files changed, 19 insertions, 19 deletions
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index 534e007..cf5863c 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -838,7 +838,7 @@ static void bitmap_file_set_bit(struct bitmap *bitmap, sector_t block) unsigned long bit; struct page *page; void *kaddr; - unsigned long chunk = block >> CHUNK_BLOCK_SHIFT(bitmap); + unsigned long chunk = block >> bitmap->chunkshift; if (!bitmap->filemap) return; @@ -1037,10 +1037,10 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start) kunmap_atomic(paddr, KM_USER0); if (b) { /* if the disk bit is set, set the memory bit */ - int needed = ((sector_t)(i+1) << (CHUNK_BLOCK_SHIFT(bitmap)) + int needed = ((sector_t)(i+1) << bitmap->chunkshift >= start); bitmap_set_memory_bits(bitmap, - (sector_t)i << CHUNK_BLOCK_SHIFT(bitmap), + (sector_t)i << bitmap->chunkshift, needed); bit_cnt++; } @@ -1084,7 +1084,7 @@ void bitmap_write_all(struct bitmap *bitmap) static void bitmap_count_page(struct bitmap *bitmap, sector_t offset, int inc) { - sector_t chunk = offset >> CHUNK_BLOCK_SHIFT(bitmap); + sector_t chunk = offset >> bitmap->chunkshift; unsigned long page = chunk >> PAGE_COUNTER_SHIFT; bitmap->bp[page].count += inc; bitmap_checkfree(bitmap, page); @@ -1190,7 +1190,7 @@ void bitmap_daemon_work(struct mddev *mddev) bitmap->allclean = 0; } bmc = bitmap_get_counter(bitmap, - (sector_t)j << CHUNK_BLOCK_SHIFT(bitmap), + (sector_t)j << bitmap->chunkshift, &blocks, 0); if (!bmc) j |= PAGE_COUNTER_MASK; @@ -1199,7 +1199,7 @@ void bitmap_daemon_work(struct mddev *mddev) /* we can clear the bit */ *bmc = 0; bitmap_count_page(bitmap, - (sector_t)j << CHUNK_BLOCK_SHIFT(bitmap), + (sector_t)j << bitmap->chunkshift, -1); /* clear the bit */ @@ -1253,7 +1253,7 @@ __acquires(bitmap->lock) * The lock must have been taken with interrupts enabled. * If !create, we don't release the lock. */ - sector_t chunk = offset >> CHUNK_BLOCK_SHIFT(bitmap); + sector_t chunk = offset >> bitmap->chunkshift; unsigned long page = chunk >> PAGE_COUNTER_SHIFT; unsigned long pageoff = (chunk & PAGE_COUNTER_MASK) << COUNTER_BYTE_SHIFT; sector_t csize; @@ -1263,10 +1263,10 @@ __acquires(bitmap->lock) if (bitmap->bp[page].hijacked || bitmap->bp[page].map == NULL) - csize = ((sector_t)1) << (CHUNK_BLOCK_SHIFT(bitmap) + + csize = ((sector_t)1) << (bitmap->chunkshift + PAGE_COUNTER_SHIFT - 1); else - csize = ((sector_t)1) << (CHUNK_BLOCK_SHIFT(bitmap)); + csize = ((sector_t)1) << bitmap->chunkshift; *blocks = csize - (offset & (csize - 1)); if (err < 0) @@ -1392,7 +1392,7 @@ void bitmap_endwrite(struct bitmap *bitmap, sector_t offset, unsigned long secto set_page_attr(bitmap, filemap_get_page( bitmap, - offset >> CHUNK_BLOCK_SHIFT(bitmap)), + offset >> bitmap->chunkshift), BITMAP_PAGE_PENDING); bitmap->allclean = 0; } @@ -1480,7 +1480,7 @@ void bitmap_end_sync(struct bitmap *bitmap, sector_t offset, sector_t *blocks, i else { if (*bmc <= 2) { set_page_attr(bitmap, - filemap_get_page(bitmap, offset >> CHUNK_BLOCK_SHIFT(bitmap)), + filemap_get_page(bitmap, offset >> bitmap->chunkshift), BITMAP_PAGE_PENDING); bitmap->allclean = 0; } @@ -1527,7 +1527,7 @@ void bitmap_cond_end_sync(struct bitmap *bitmap, sector_t sector) bitmap->mddev->curr_resync_completed = sector; set_bit(MD_CHANGE_CLEAN, &bitmap->mddev->flags); - sector &= ~((1ULL << CHUNK_BLOCK_SHIFT(bitmap)) - 1); + sector &= ~((1ULL << bitmap->chunkshift) - 1); s = 0; while (s < sector && s < bitmap->mddev->resync_max_sectors) { bitmap_end_sync(bitmap, s, &blocks, 0); @@ -1557,7 +1557,7 @@ static void bitmap_set_memory_bits(struct bitmap *bitmap, sector_t offset, int n struct page *page; *bmc = 2 | (needed ? NEEDED_MASK : 0); bitmap_count_page(bitmap, offset, 1); - page = filemap_get_page(bitmap, offset >> CHUNK_BLOCK_SHIFT(bitmap)); + page = filemap_get_page(bitmap, offset >> bitmap->chunkshift); set_page_attr(bitmap, page, BITMAP_PAGE_PENDING); bitmap->allclean = 0; } @@ -1570,7 +1570,7 @@ void bitmap_dirty_bits(struct bitmap *bitmap, unsigned long s, unsigned long e) unsigned long chunk; for (chunk = s; chunk <= e; chunk++) { - sector_t sec = (sector_t)chunk << CHUNK_BLOCK_SHIFT(bitmap); + sector_t sec = (sector_t)chunk << bitmap->chunkshift; bitmap_set_memory_bits(bitmap, sec, 1); spin_lock_irq(&bitmap->lock); bitmap_file_set_bit(bitmap, sec); @@ -1727,11 +1727,12 @@ int bitmap_create(struct mddev *mddev) goto error; bitmap->daemon_lastrun = jiffies; - bitmap->chunkshift = ffz(~mddev->bitmap_info.chunksize); + bitmap->chunkshift = (ffz(~mddev->bitmap_info.chunksize) + - BITMAP_BLOCK_SHIFT); /* now that chunksize and chunkshift are set, we can use these macros */ - chunks = (blocks + CHUNK_BLOCK_RATIO(bitmap) - 1) >> - CHUNK_BLOCK_SHIFT(bitmap); + chunks = (blocks + bitmap->chunkshift - 1) >> + bitmap->chunkshift; pages = (chunks + PAGE_COUNTER_RATIO - 1) / PAGE_COUNTER_RATIO; BUG_ON(!pages); 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; |