dedup

commit cc98da662594f5538942073561082e92be19d9fb
parent 0bcb5f2edec8035f5fbfb9a33d51ba1b6b19f168
Author: sin <sin@2f30.org>
Date:   Mon,  4 Mar 2019 15:42:26 +0000

Check cache offset/size against block descriptor

Diffstat:
M
dedup.c
 | 
6
++++++

1 file changed, 6 insertions(+), 0 deletions(-)
diff --git a/dedup.c b/dedup.c
@@ -417,6 +417,12 @@ check_cache(struct snapshot *snap, void *arg)
 		if (lookup_cache_entry(cache, &cache_entry) < 0) {
 			*ret = -1;
 			return WALK_STOP;
+		} else {
+			if (cache_entry.offset != blk_desc->offset ||
+			    cache_entry.size != blk_desc->size) {
+				*ret = -1;
+				return WALK_STOP;
+			}
 		}
 	}
 	return WALK_CONTINUE;