Index: linux-2.6-git/kernel/sysctl.c
===================================================================
--- linux-2.6-git.orig/kernel/sysctl.c	2010-02-05 16:48:27.000000000 +0100
+++ linux-2.6-git/kernel/sysctl.c	2010-02-05 16:48:58.000000000 +0100
@@ -259,6 +259,9 @@
 #endif
 
 extern unsigned long perf_count_congestion_wait;
+extern unsigned long perf_count_pages_direct_reclaim;
+extern unsigned long perf_count_failed_pages_direct_reclaim;
+extern unsigned long perf_count_failed_pages_direct_reclaim_but_progress;
 static struct ctl_table perf_table[] = {
 	{
 		.ctl_name	= CTL_UNNUMBERED,
@@ -268,6 +271,30 @@
 		.maxlen		= sizeof(unsigned long),
 		.proc_handler   = &proc_doulongvec_minmax,
 	},
+	{
+		.ctl_name	= CTL_UNNUMBERED,
+		.procname       = "perf_count_pages_direct_reclaim",
+		.data           = &perf_count_pages_direct_reclaim,
+		.maxlen		= sizeof(unsigned long),
+		.mode           = 0666,
+		.proc_handler   = &proc_doulongvec_minmax,
+	},
+	{
+		.ctl_name	= CTL_UNNUMBERED,
+		.procname       = "perf_count_failed_pages_direct_reclaim",
+		.data           = &perf_count_failed_pages_direct_reclaim,
+		.maxlen		= sizeof(unsigned long),
+		.mode           = 0666,
+		.proc_handler   = &proc_doulongvec_minmax,
+	},
+	{
+		.ctl_name	= CTL_UNNUMBERED,
+		.procname       = "perf_count_failed_pages_direct_reclaim_but_progress",
+		.data           = &perf_count_failed_pages_direct_reclaim_but_progress,
+		.maxlen		= sizeof(unsigned long),
+		.mode           = 0666,
+		.proc_handler   = &proc_doulongvec_minmax,
+	},
 	{ .ctl_name = 0 }
 };
 
Index: linux-2.6-git/mm/page_alloc.c
===================================================================
--- linux-2.6-git.orig/mm/page_alloc.c	2010-02-05 16:48:07.000000000 +0100
+++ linux-2.6-git/mm/page_alloc.c	2010-02-05 16:48:58.000000000 +0100
@@ -1661,6 +1661,9 @@
 	return page;
 }
 
+unsigned long perf_count_pages_direct_reclaim = 0;
+unsigned long perf_count_failed_pages_direct_reclaim = 0;
+
 /* The really slow allocator path where we enter direct reclaim */
 static inline struct page *
 __alloc_pages_direct_reclaim(gfp_t gfp_mask, unsigned int order,
@@ -1697,6 +1700,13 @@
 					zonelist, high_zoneidx,
 					alloc_flags, preferred_zone,
 					migratetype);
+
+	perf_count_pages_direct_reclaim++;
+	if (!page)
+		perf_count_failed_pages_direct_reclaim++;
+	if (!page && !(*did_some_progress))
+		perf_count_failed_pages_direct_reclaim_but_progress++
+
 	return page;
 }