We forget to protect the modified_extents list, fix it.
Signed-off-by: Miao Xie <miaox@xxxxxxxxxxxxxx>
---
fs/btrfs/tree-log.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index cbb544e..f7e9387 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -3525,8 +3525,10 @@ next_slot:
struct extent_map_tree *tree = &BTRFS_I(inode)->extent_tree;
struct extent_map *em, *n;
+ write_lock(&tree->lock);
list_for_each_entry_safe(em, n, &tree->modified_extents, list)
list_del_init(&em->list);
+ write_unlock(&tree->lock);
}
if (inode_only == LOG_INODE_ALL && S_ISDIR(inode->i_mode)) {
--
1.7.6.5
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