From 6b0bfe2186b78c1dd17b4a21aef56dffdfec73fa Mon Sep 17 00:00:00 2001
From: Xiubo Li <xiubli@redhat.com>
Date: Wed, 15 Dec 2021 11:53:34 +0800
Subject: [PATCH] mds: support '~mds{rank number}' for dump tree

The 'get subtrees' command will show the '~mdsdir' as '~mds{rank}'
instead. It's strange that 'dump tree ~mds{rank} depth' doesn't
work.

Signed-off-by: Xiubo Li <xiubli@redhat.com>
---
 src/mds/MDCache.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/mds/MDCache.cc b/src/mds/MDCache.cc
index 315fc137cb3..668517a683b 100644
--- a/src/mds/MDCache.cc
+++ b/src/mds/MDCache.cc
@@ -8554,10 +8554,12 @@ CInode *MDCache::cache_traverse(const filepath& fp)
 
   CInode *in;
   unsigned depth = 0;
+  char mdsdir_name[16];
+  sprintf(mdsdir_name, "~mds%d", mds->get_nodeid());
 
   if (fp.get_ino()) {
     in = get_inode(fp.get_ino());
-  } else if (fp.depth() > 0 && fp[0] == "~mdsdir") {
+  } else if (fp.depth() > 0 && (fp[0] == "~mdsdir" || fp[0] == mdsdir_name)) {
     in = myin;
     depth = 1;
   } else {
-- 
2.47.3