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Diffstat (limited to 'drivers/md/md-bitmap.c')
-rw-r--r--drivers/md/md-bitmap.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/md/md-bitmap.c b/drivers/md/md-bitmap.c
index 0a2d37eb38..08232d8dc8 100644
--- a/drivers/md/md-bitmap.c
+++ b/drivers/md/md-bitmap.c
@@ -227,6 +227,8 @@ 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;
loff_t sboff, offset = mddev->bitmap_info.offset;
sector_t ps = pg_index * PAGE_SIZE / SECTOR_SIZE;
unsigned int size = PAGE_SIZE;
@@ -269,11 +271,9 @@ static int __write_sb_page(struct md_rdev *rdev, struct bitmap *bitmap,
if (size == 0)
/* bitmap runs in to data */
return -EINVAL;
- } else {
- /* DATA METADATA BITMAP - no problems */
}
- md_super_write(mddev, rdev, sboff + ps, (int) size, page);
+ md_super_write(mddev, rdev, sboff + ps, (int)min(size, bitmap_limit), page);
return 0;
}