mds/MDSCache: init empty string_view with {}

nullptr is not a valid null-terminated character sequence

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/src/mds/MDCache.h b/src/mds/MDCache.h
index 29a1af01c6e144c2ca736f609c45224d4476344b..9898fc37c0667b234474bcbd8f87041509013c83 100644 (file)
--- a/src/mds/MDCache.h
+++ b/src/mds/MDCache.h
@@ -1264,7 +1264,7 @@ public:
 protected:
   int dump_cache(std::string_view fn, Formatter *f);
 public:
-  int dump_cache() { return dump_cache(NULL, NULL); }
+  int dump_cache() { return dump_cache({}, nullptr); }
   int dump_cache(std::string_view filename);
   int dump_cache(Formatter *f);
   void dump_tree(CInode *in, const int cur_depth, const int max_depth, Formatter *f);