From: Yan, Zheng <zyan@redhat.com>
Date: Fri, 7 Nov 2014 03:38:37 +0000 (+0800)
Subject: mds: store backtrace for straydir
X-Git-Tag: v0.87.1~48^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=309fd5f56ef5ea76ffd525fdde6e6fbbc9ef6ef1;p=ceph.git

mds: store backtrace for straydir

Backport: giant, firefly, emperor, dumpling
Signed-off-by: Yan, Zheng <zyan@redhat.com>
(cherry picked from commit 0d89db5d3e5ae5d552d4058a88a4e186748ab1d2)
---

diff --git a/src/mds/MDCache.cc b/src/mds/MDCache.cc
index ea5bb3616018..b6af0743f353 100644
--- a/src/mds/MDCache.cc
+++ b/src/mds/MDCache.cc
@@ -406,6 +406,8 @@ void MDCache::create_mydir_hierarchy(MDSGather *gather)
   CDir *mydir = my->get_or_open_dirfrag(this, frag_t());
   adjust_subtree_auth(mydir, mds->whoami);   
 
+  LogSegment *ls = mds->mdlog->get_current_segment();
+
   // stray dir
   for (int i = 0; i < NUM_STRAY; ++i) {
     CInode *stray = create_system_inode(MDS_INO_STRAY(mds->whoami, i), S_IFDIR);
@@ -421,8 +423,10 @@ void MDCache::create_mydir_hierarchy(MDSGather *gather)
     mydir->fnode.fragstat.nsubdirs++;
     // save them
     straydir->mark_complete();
-    straydir->mark_dirty(straydir->pre_dirty(), mds->mdlog->get_current_segment());
+    straydir->mark_dirty(straydir->pre_dirty(), ls);
     straydir->commit(0, gather->new_sub());
+    stray->_mark_dirty_parent(ls, true);
+    stray->store_backtrace(gather->new_sub());
   }
 
   CInode *journal = create_system_inode(MDS_INO_LOG_OFFSET + mds->whoami, S_IFREG);
@@ -442,7 +446,7 @@ void MDCache::create_mydir_hierarchy(MDSGather *gather)
 
 
   mydir->mark_complete();
-  mydir->mark_dirty(mydir->pre_dirty(), mds->mdlog->get_current_segment());
+  mydir->mark_dirty(mydir->pre_dirty(), ls);
   mydir->commit(0, gather->new_sub());
 
   myin->store(gather->new_sub());