From: Yan, Zheng <zyan@redhat.com>
Date: Tue, 10 Nov 2015 12:29:29 +0000 (+0800)
Subject: mds: remove dir dentry from scrubstack after finishing scrube dirfrags
X-Git-Tag: v10.0.1~51^2~4
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=b65345e319c91c91a9cba41b292458e283ffce56;p=ceph.git

mds: remove dir dentry from scrubstack after finishing scrube dirfrags

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

diff --git a/src/mds/CDentry.h b/src/mds/CDentry.h
index 6a57d2a14e19..81f0e38ddf16 100644
--- a/src/mds/CDentry.h
+++ b/src/mds/CDentry.h
@@ -147,14 +147,16 @@ public:
     bool scrub_recursive; /// true if we are scrubbing everything under this
     bool scrub_children; /// true if we have to scrub all direct children
     bool dentry_scrubbing; /// safety check
+    bool dentry_children_done; /// safety check
+    bool inode_validated;  /// Has our inode's validate_disk_state run?
     Context *on_finish; /// called when we finish scrubbing
     ScrubHeaderRefConst header;
-    bool inode_validated;  /// Has our inode's validate_disk_state run?
 
     scrub_info_t() :
       scrub_parent(NULL), scrub_recursive(false),
-      scrub_children(false), dentry_scrubbing(false), on_finish(NULL),
-      inode_validated(false)
+      scrub_children(false), dentry_scrubbing(false),
+      dentry_children_done(false), inode_validated(false),
+      on_finish(NULL)
     {}
   };
 
@@ -181,6 +183,9 @@ public:
                         ScrubHeaderRefConst header,
                         Context *f);
   void scrub_finished(Context **c);
+  void scrub_children_finished() {
+    scrub_infop->dentry_children_done = true;
+  }
 
 private:
   /**
diff --git a/src/mds/CDir.cc b/src/mds/CDir.cc
index 379d0546adaf..70a4c7f39e8b 100644
--- a/src/mds/CDir.cc
+++ b/src/mds/CDir.cc
@@ -2937,8 +2937,6 @@ void CDir::scrub_finished()
   scrub_infop->others_scrubbed.clear();
   scrub_infop->directory_scrubbing = false;
 
-  scrub_infop->last_scrub_dirty = true;
-
   scrub_infop->last_recursive = scrub_infop->recursive_start;
   scrub_infop->last_scrub_dirty = true;
 }
diff --git a/src/mds/ScrubStack.cc b/src/mds/ScrubStack.cc
index 2615dfc47374..948154f33034 100644
--- a/src/mds/ScrubStack.cc
+++ b/src/mds/ScrubStack.cc
@@ -177,7 +177,6 @@ void ScrubStack::scrub_dir_dentry(CDentry *dn,
   list<CDir*>::iterator i = scrubbing_cdirs.begin();
   bool all_frags_terminal = true;
   bool all_frags_done = true;
-  bool finally_done = false;
   while (g_conf->mds_max_scrub_ops_in_progress > scrubs_in_progress) {
     // select next CDir
     CDir *cur_dir = NULL;
@@ -227,12 +226,11 @@ void ScrubStack::scrub_dir_dentry(CDentry *dn,
     // OK, so now I can... fire off a validate on the dir inode, and
     // when it completes, come through here again, noticing that we've
     // set a flag to indicate the the validate happened, and 
-
-    scrub_dir_dentry_final(dn, &finally_done);
+    scrub_dir_dentry_final(dn);
   }
 
   *terminal = all_frags_terminal;
-  *done = all_frags_done && finally_done;
+  *done = all_frags_done;
   dout(10) << __func__ << " is exiting " << *terminal << " " << *done << dendl;
   return;
 }
@@ -282,7 +280,7 @@ class C_InodeValidated : public MDSInternalContext
 };
 
 
-void ScrubStack::scrub_dir_dentry_final(CDentry *dn, bool *finally_done)
+void ScrubStack::scrub_dir_dentry_final(CDentry *dn)
 {
   dout(20) << __func__ << *dn << dendl;
 
@@ -293,8 +291,8 @@ void ScrubStack::scrub_dir_dentry_final(CDentry *dn, bool *finally_done)
   // doing our validate_disk_state on the inode
   // FIXME: the magic-constructing scrub_info() is going to leave
   // an unneeded scrub_infop lying around here
-  *finally_done = !dn->scrub_info()->dentry_scrubbing;
-  if (!*finally_done) {
+  if (!dn->scrub_info()->dentry_children_done) {
+    dn->scrub_children_finished();
     CInode *in = dn->get_projected_inode();
     C_InodeValidated *fin = new C_InodeValidated(mdcache->mds, this, dn);
     MDRequestRef null_mdr;
diff --git a/src/mds/ScrubStack.h b/src/mds/ScrubStack.h
index 69210922e506..fa99859fd278 100644
--- a/src/mds/ScrubStack.h
+++ b/src/mds/ScrubStack.h
@@ -166,10 +166,8 @@ private:
    * Scrub a directory-representing dentry.
    *
    * @param dn The CDentry of the directory we're doing final scrub on.
-   * @param done Set to true if the dentry scrub is finished. (That
-   * won't every actually happen, right? It needs disk accesses? I forget.)
    */
-  void scrub_dir_dentry_final(CDentry *dn, bool *done);
+  void scrub_dir_dentry_final(CDentry *dn);
 
   /**
    * Get a CDir into memory, and return it if it's already complete.