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Diffstat (limited to 'drivers/md/dm-snap.c')
| -rw-r--r-- | drivers/md/dm-snap.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index 594d1f6b478..ab54f99b7c3 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -931,6 +931,10 @@ static int __origin_write(struct list_head *snapshots, struct bio *bio) if (!snap->valid) continue; + /* Nothing to do if writing beyond end of snapshot */ + if (bio->bi_sector >= dm_table_get_size(snap->table)) + continue; + down_write(&snap->lock); /* |