Filipe David Borba Manana
2013-Nov-30 11:28 UTC
[PATCH] Btrfs: fix extent_map block_len after merging
When merging an extent_map with its right neighbor, increment
its block_len with the neighbor''s block_len.
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
---
fs/btrfs/extent_map.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index b60955d..996ad56b 100644
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -255,7 +255,7 @@ static void try_merge_map(struct extent_map_tree *tree,
struct extent_map *em)
merge = rb_entry(rb, struct extent_map, rb_node);
if (rb && mergable_maps(em, merge)) {
em->len += merge->len;
- em->block_len += merge->len;
+ em->block_len += merge->block_len;
rb_erase(&merge->rb_node, &tree->map);
merge->in_tree = 0;
em->mod_len = (merge->mod_start + merge->mod_len) -
em->mod_start;
--
1.7.9.5
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