From: Yan, Zheng <zyan@redhat.com>
Date: Tue, 23 Dec 2014 02:19:13 +0000 (+0800)
Subject: mds: optimize SnapRealm::split_at()
X-Git-Tag: v0.93~87^2~20
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=1a648cd1305b10892eabefb37d75fd72e5de497c;p=ceph.git

mds: optimize SnapRealm::split_at()

avoid executing the 'split children' code because all snaprealms in
mdsdir has no child snaprealm.

Signed-off-by: Yan, Zheng <zyan@redhat.com>
---

diff --git a/src/mds/SnapRealm.cc b/src/mds/SnapRealm.cc
index 1a19c4821b5a..e28da9f5f1ef 100644
--- a/src/mds/SnapRealm.cc
+++ b/src/mds/SnapRealm.cc
@@ -355,7 +355,7 @@ void SnapRealm::split_at(SnapRealm *child)
   dout(10) << "split_at " << *child 
 	   << " on " << *child->inode << dendl;
 
-  if (!child->inode->is_dir()) {
+  if (inode->is_mdsdir() || !child->inode->is_dir()) {
     // it's not a dir.
     if (child->inode->containing_realm) {
       //  - no open children.