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-rw-r--r--fs/btrfs/inode.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index f0dfd7d..ad1e88d 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1425,10 +1425,11 @@ int btrfs_merge_bio_hook(struct page *page, unsigned long offset,
map_length = length;
ret = btrfs_map_block(map_tree, READ, logical,
&map_length, NULL, 0);
-
+ /* Will always return 0 or 1 with map_multi == NULL */
+ BUG_ON(ret < 0);
if (map_length < length + size)
return 1;
- return ret;
+ return 0;
}
/*
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