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authorMel Gorman <mel@csn.ul.ie>2008-07-23 21:26:52 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-24 10:47:14 -0700
commit68ad8df42e12037c3894c9706ab428bf5cd6426b (patch)
tree42999fc8e3cbf400b6133f832f310690f8f28b76 /mm/mm_init.c
parent2dbb51c49f4fecb8330e43247a0edfbc4b2b8974 (diff)
downloadlinux-68ad8df42e12037c3894c9706ab428bf5cd6426b.tar.gz
mm: print out the zonelists on request for manual verification
This patch prints out the zonelists during boot for manual verification by the user if the mminit_loglevel is MMINIT_VERIFY or higher. Signed-off-by: Mel Gorman <mel@csn.ul.ie> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Andy Whitcroft <apw@shadowen.org> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mm_init.c')
-rw-r--r--mm/mm_init.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/mm/mm_init.c b/mm/mm_init.c
index e16990d629e..ce445ca097e 100644
--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -11,6 +11,51 @@
int __meminitdata mminit_loglevel;
+/* The zonelists are simply reported, validation is manual. */
+void mminit_verify_zonelist(void)
+{
+ int nid;
+
+ if (mminit_loglevel < MMINIT_VERIFY)
+ return;
+
+ for_each_online_node(nid) {
+ pg_data_t *pgdat = NODE_DATA(nid);
+ struct zone *zone;
+ struct zoneref *z;
+ struct zonelist *zonelist;
+ int i, listid, zoneid;
+
+ BUG_ON(MAX_ZONELISTS > 2);
+ for (i = 0; i < MAX_ZONELISTS * MAX_NR_ZONES; i++) {
+
+ /* Identify the zone and nodelist */
+ zoneid = i % MAX_NR_ZONES;
+ listid = i / MAX_NR_ZONES;
+ zonelist = &pgdat->node_zonelists[listid];
+ zone = &pgdat->node_zones[zoneid];
+ if (!populated_zone(zone))
+ continue;
+
+ /* Print information about the zonelist */
+ printk(KERN_DEBUG "mminit::zonelist %s %d:%s = ",
+ listid > 0 ? "thisnode" : "general", nid,
+ zone->name);
+
+ /* Iterate the zonelist */
+ for_each_zone_zonelist(zone, z, zonelist, zoneid) {
+#ifdef CONFIG_NUMA
+ printk(KERN_CONT "%d:%s ",
+ zone->node, zone->name);
+#else
+ printk(KERN_CONT "0:%s ", zone->name);
+#endif /* CONFIG_NUMA */
+ }
+ printk(KERN_CONT "\n");
+ }
+ }
+}
+
void __init mminit_verify_pageflags_layout(void)
{
int shift, width;