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>

diff --git a/src/mds/MDCache.cc b/src/mds/MDCache.cc
index 315fc137cb3e85640b91654b74a2ce9d225853af..668517a683bd2376b8d2ff0ccdd6345ba286a7c5 100644 (file)
--- 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 {