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yaml
---
r: 105259
b: refs/heads/master
c: 68ad8df
h: refs/heads/master
i:
  105257: 29441cb
  105255: e8d0f4c
v: v3
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Mel Gorman authored and Linus Torvalds committed Jul 24, 2008
1 parent e27c458 commit bcb63fd
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Showing 4 changed files with 52 additions and 1 deletion.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 2dbb51c49f4fecb8330e43247a0edfbc4b2b8974
refs/heads/master: 68ad8df42e12037c3894c9706ab428bf5cd6426b
5 changes: 5 additions & 0 deletions trunk/mm/internal.h
Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,7 @@ do { \
extern void mminit_verify_pageflags_layout(void);
extern void mminit_verify_page_links(struct page *page,
enum zone_type zone, unsigned long nid, unsigned long pfn);
extern void mminit_verify_zonelist(void);

#else

Expand All @@ -97,6 +98,10 @@ static inline void mminit_verify_page_links(struct page *page,
enum zone_type zone, unsigned long nid, unsigned long pfn)
{
}

static inline void mminit_verify_zonelist(void)
{
}
#endif /* CONFIG_DEBUG_MEMORY_INIT */

/* mminit_validate_memmodel_limits is independent of CONFIG_DEBUG_MEMORY_INIT */
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45 changes: 45 additions & 0 deletions trunk/mm/mm_init.c
Original file line number Diff line number Diff line change
Expand Up @@ -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;
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1 change: 1 addition & 0 deletions trunk/mm/page_alloc.c
Original file line number Diff line number Diff line change
Expand Up @@ -2352,6 +2352,7 @@ void build_all_zonelists(void)

if (system_state == SYSTEM_BOOTING) {
__build_all_zonelists(NULL);
mminit_verify_zonelist();
cpuset_init_current_mems_allowed();
} else {
/* we have to stop all cpus to guarantee there is no user
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