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Diffstat (limited to 'mm/page_alloc.c')
-rw-r--r--mm/page_alloc.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 5c44ed49ca93..16169c18001e 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2804,7 +2804,7 @@ bad:
if (dzone == zone)
break;
kfree(zone_pcp(dzone, cpu));
- zone_pcp(dzone, cpu) = NULL;
+ zone_pcp(dzone, cpu) = &boot_pageset[cpu];
}
return -ENOMEM;
}
@@ -2819,7 +2819,7 @@ static inline void free_zone_pagesets(int cpu)
/* Free per_cpu_pageset if it is slab allocated */
if (pset != &boot_pageset[cpu])
kfree(pset);
- zone_pcp(zone, cpu) = NULL;
+ zone_pcp(zone, cpu) = &boot_pageset[cpu];
}
}
@@ -4494,6 +4494,8 @@ int percpu_pagelist_fraction_sysctl_handler(ctl_table *table, int write,
if (!write || (ret == -EINVAL))
return ret;
for_each_zone(zone) {
+ if (!populated_zone(zone))
+ continue;
for_each_online_cpu(cpu) {
unsigned long high;
high = zone->present_pages / percpu_pagelist_fraction;