[Libsysio-commit] HEAD: libsysio/src inode.c

[Lee W. <lw...@us...>]

Update of /cvsroot/libsysio/libsysio/src
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv27174/src

Modified Files:
	inode.c 
Log Message:


If P_RECLAIM_DEBUG is definded then at each reclaim a count of the number
of pnode_base nodes present in the system is printed along with
the number of those that are leaves and the number of interior
nodes without aliases (orphpans).


Index: inode.c
===================================================================
RCS file: /cvsroot/libsysio/libsysio/src/inode.c,v
retrieving revision 1.41
retrieving revision 1.42
diff -u -w -b -B -p -r1.41 -r1.42
--- inode.c	23 Apr 2008 00:24:50 -0000	1.41
+++ inode.c	23 Apr 2008 16:46:40 -0000	1.42
@@ -107,6 +107,10 @@ static size_t max_names;
  */
 struct pnodes_head _sysio_idle_pnodes;
 
+#ifdef P_RECLAIM_DEBUG
+static LIST_HEAD(, pnode_base) pbnodes;
+#endif
+
 /*
  * The system root -- Aka `/'.
  */
@@ -331,6 +335,33 @@ _sysio_i_undead(struct inode *ino)
 	ino->i_zombie = 1;
 }
 
+#ifdef P_RECLAIM_DEBUG
+static void
+p_reclaim_debug()
+{
+	struct pnode_base *nxt, *pb;
+	unsigned long npb, npbleaves, npborphans;
+
+	npb = 0;
+	npbleaves = 0;
+	npborphans = 0;
+
+	nxt = pbnodes.lh_first;
+	while ((pb = nxt)) {
+		nxt = pb->pb_links.le_next;
+		npb++;
+		if (!pb->pb_children.lh_first)
+			npbleaves++;
+		else if (!pb->pb_aliases.lh_first)
+			npborphans++;
+	}
+	_sysio_cprintf("PBSTATS: n %lu, leaves %lu, orphans %lu\n",
+		       npb,
+		       npbleaves,
+		       npborphans);
+}
+#endif
+
 /*
  * Garbage collect idle path (and base path) nodes tracked by the system.
  */
@@ -346,6 +377,10 @@ p_reclaim(unsigned count)
 	if (count)
 		adjust = 1;
 
+#ifdef P_RECLAIM_DEBUG
+	p_reclaim_debug();
+#endif
+
 	INO_CST_UPDCNT(preclaims);
 	next = _sysio_idle_pnodes.tqh_first;
 	if (!next)
@@ -505,6 +540,9 @@ _sysio_pb_new(struct qstr *name, struct 
 	LIST_INIT(&pb->pb_aliases);
 	if (parent)
 		LIST_INSERT_HEAD(&parent->pb_children, pb, pb_sibs);
+#ifdef P_RECLAIM_DEBUG
+	LIST_INSERT_HEAD(&pbnodes, pb, pb_links);
+#endif
 
 	n_names++;
 	assert(n_names);
@@ -531,6 +569,9 @@ pb_destroy(struct pnode_base *pb)
 		ncache_delete(pb);
 	if (pb->pb_key.pbk_parent)
 		LIST_REMOVE(pb, pb_sibs);
+#ifdef P_RECLAIM_DEBUG
+	LIST_REMOVE(pb, pb_links);
+#endif
 
 	free(pb);
 }