diff options
| -rw-r--r-- | drivers/md/md-bitmap.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/md/md-bitmap.c b/drivers/md/md-bitmap.c index 9ac23e02b606..44ec9b17cfd3 100644 --- a/drivers/md/md-bitmap.c +++ b/drivers/md/md-bitmap.c @@ -428,8 +428,8 @@ static int __write_sb_page(struct md_rdev *rdev, struct bitmap *bitmap, struct block_device *bdev; struct mddev *mddev = bitmap->mddev; struct bitmap_storage *store = &bitmap->storage; - unsigned int bitmap_limit = (bitmap->storage.file_pages - pg_index) << - PAGE_SHIFT; + unsigned long num_pages = bitmap->storage.file_pages; + unsigned int bitmap_limit = (num_pages - pg_index % num_pages) << PAGE_SHIFT; loff_t sboff, offset = mddev->bitmap_info.offset; sector_t ps = pg_index * PAGE_SIZE / SECTOR_SIZE; unsigned int size = PAGE_SIZE; @@ -438,7 +438,7 @@ static int __write_sb_page(struct md_rdev *rdev, struct bitmap *bitmap, bdev = (rdev->meta_bdev) ? rdev->meta_bdev : rdev->bdev; /* we compare length (page numbers), not page offset. */ - if ((pg_index - store->sb_index) == store->file_pages - 1) { + if ((pg_index - store->sb_index) == num_pages - 1) { unsigned int last_page_size = store->bytes & (PAGE_SIZE - 1); if (last_page_size == 0) |