diff --git a/fs/f2fs/extent_cache.c b/fs/f2fs/extent_cache.c
index d7b8c8b5fc39..3f872145a988 100644
--- a/fs/f2fs/extent_cache.c
+++ b/fs/f2fs/extent_cache.c
@@ -650,9 +650,8 @@ void f2fs_drop_extent_tree(struct inode *inode)
 	if (!f2fs_may_extent_tree(inode))
 		return;
 
-	set_inode_flag(inode, FI_NO_EXTENT);
-
 	write_lock(&et->lock);
+	set_inode_flag(inode, FI_NO_EXTENT);
 	__free_extent_tree(sbi, et);
 	__drop_largest_extent(inode, 0, UINT_MAX);
 	write_unlock(&et->lock);