[PATCH] zone_reclaim: minor fixes

Fixes:

- If we only reclaim nr_pages then its okay to stay on node.
  Switch from > to >= for the comparison.

- vm_table[] entry for zone_reclaim_mode is a bit screwed up.

- Add empty line around shrink_zone to show that this is the
  central function to be called.

Signed-off-by: Christoph Lameter <clameter@sgi.com>

Index: linux-2.6.16-rc1-mm2/mm/vmscan.c
===================================================================
--- linux-2.6.16-rc1-mm2.orig/mm/vmscan.c	2006-01-20 08:35:10.000000000 -0800
+++ linux-2.6.16-rc1-mm2/mm/vmscan.c	2006-01-20 14:05:22.000000000 -0800
@@ -1868,14 +1868,16 @@ int zone_reclaim(struct zone *zone, gfp_
 	p->flags |= PF_MEMALLOC;
 	reclaim_state.reclaimed_slab = 0;
 	p->reclaim_state = &reclaim_state;
+
 	shrink_zone(zone, &sc);
+
 	p->reclaim_state = NULL;
 	current->flags &= ~PF_MEMALLOC;
 
 	if (sc.nr_reclaimed == 0)
 		zone->last_unsuccessful_zone_reclaim = jiffies;
 
-	return sc.nr_reclaimed > nr_pages;
+	return sc.nr_reclaimed >= nr_pages;
 }
 #endif
 
Index: linux-2.6.16-rc1-mm2/kernel/sysctl.c
===================================================================
--- linux-2.6.16-rc1-mm2.orig/kernel/sysctl.c	2006-01-20 08:35:10.000000000 -0800
+++ linux-2.6.16-rc1-mm2/kernel/sysctl.c	2006-01-20 14:05:35.000000000 -0800
@@ -886,7 +886,8 @@ static ctl_table vm_table[] = {
 		.maxlen		= sizeof(zone_reclaim_mode),
 		.mode		= 0644,
 		.proc_handler	= &proc_dointvec,
-		.strategy	= &zero,
+		.strategy	= &sysctl_intvec,
+		.extra1		= &zero,
 	},
 #endif
 	{ .ctl_name = 0 }