From 40cee8f7f10f4feed3550712ba74e2c45bb9c728 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@newdream.net>
Date: Mon, 26 May 2008 10:27:26 -0700
Subject: [PATCH] mds: set dirty flag when subtree root dirfrag gets scatter

---
 src/include/types.h |  4 ++++
 src/mds/CDir.cc     |  3 +--
 src/mds/CDir.h      |  4 ++++
 src/mds/CInode.cc   | 12 ++++++++----
 4 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/src/include/types.h b/src/include/types.h
index fcd4633fc73aa..c9d40d899ecb1 100644
--- a/src/include/types.h
+++ b/src/include/types.h
@@ -250,6 +250,10 @@ struct frag_info_t {
 };
 WRITE_CLASS_ENCODER(frag_info_t)
 
+inline bool operator==(const frag_info_t &l, const frag_info_t &r) {
+  return memcmp(&l, &r, sizeof(l)) == 0;
+}
+
 inline ostream& operator<<(ostream &out, const frag_info_t &f) {
   return out << "f(v" << f.version
 	     << " m" << f.mtime
diff --git a/src/mds/CDir.cc b/src/mds/CDir.cc
index 3274762726bb8..cb9842f6708d0 100644
--- a/src/mds/CDir.cc
+++ b/src/mds/CDir.cc
@@ -822,9 +822,8 @@ void CDir::mark_dirty(version_t pv, LogSegment *ls)
 void CDir::_mark_dirty(LogSegment *ls)
 {
   if (!state_test(STATE_DIRTY)) {
-    state_set(STATE_DIRTY);
     dout(10) << "mark_dirty (was clean) " << *this << " version " << get_version() << dendl;
-    get(PIN_DIRTY);
+    _set_dirty_flag();
     assert(ls);
   } else {
     dout(10) << "mark_dirty (already dirty) " << *this << " version " << get_version() << dendl;
diff --git a/src/mds/CDir.h b/src/mds/CDir.h
index 4109113ea7c0a..3eac0af84331c 100644
--- a/src/mds/CDir.h
+++ b/src/mds/CDir.h
@@ -182,6 +182,10 @@ public:
   bool is_projected() { return get_projected_version() > get_version(); }
   version_t pre_dirty(version_t min=0);
   void _mark_dirty(LogSegment *ls);
+  void _set_dirty_flag() {
+    state_set(STATE_DIRTY);
+    get(PIN_DIRTY);
+  }
   void mark_dirty(version_t pv, LogSegment *ls);
   void mark_clean();
 
diff --git a/src/mds/CInode.cc b/src/mds/CInode.cc
index 886b68e71c8d6..8122f0634ae18 100644
--- a/src/mds/CInode.cc
+++ b/src/mds/CInode.cc
@@ -603,7 +603,7 @@ void CInode::decode_lock_state(int type, bufferlist& bl)
       frag_info_t dirstat;
       ::decode(dirstat, p);
       if (!is_auth())
-	inode.dirstat = dirstat;    // ignore inode summaction unless i'm a replica
+	inode.dirstat = dirstat;    // take inode summation if replica
       __u32 n;
       ::decode(n, p);
       while (n--) {
@@ -616,9 +616,13 @@ void CInode::decode_lock_state(int type, bufferlist& bl)
 	  assert(dir);                // i am auth; i had better have this dir open
 	  dir->fnode.fragstat = fragstat;
 	} else {
-	  if (dir) {
-	    dir->fnode.accounted_fragstat = fragstat;
-	    // mark dirty?  FIXME
+	  if (dir &&
+	      !(dir->fnode.accounted_fragstat == fragstat)) {
+	    dout(10) << " setting accounted_fragstat " << fragstat << " and setting dirty bit on "
+		     << *dir << dendl;
+	    fnode_t *pf = dir->get_projected_fnode();
+	    pf->accounted_fragstat = fragstat;
+	    dir->_set_dirty_flag();	    // bit of a hack
 	  }
 	}
       }
-- 
2.39.5