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-rw-r--r--fs/btrfs/tree-log.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 8dde5c08a48f..191dea1d2416 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -4191,7 +4191,7 @@ static noinline int copy_items(struct btrfs_trans_handle *trans,
static int extent_cmp(void *priv, const struct list_head *a,
const struct list_head *b)
{
- struct extent_map *em1, *em2;
+ const struct extent_map *em1, *em2;
em1 = list_entry(a, struct extent_map, list);
em2 = list_entry(b, struct extent_map, list);