int i;
int bad = 0;
+ VM_BUG_ON_PAGE(PageTail(page), page);
+ VM_BUG_ON_PAGE(PageHead(page) && compound_order(page) != order, page);
+
trace_mm_page_free(page, order);
kmemcheck_free_shadow(page, order);
#endif
/*
- * Drain pages of the indicated processor.
+ * Drain pcplists of the indicated processor and zone.
*
* The processor must either be the current processor and the
* thread pinned to the current processor or a processor that
* is not online.
*/
-static void drain_pages(unsigned int cpu)
+static void drain_pages_zone(unsigned int cpu, struct zone *zone)
{
unsigned long flags;
- struct zone *zone;
+ struct per_cpu_pageset *pset;
+ struct per_cpu_pages *pcp;
- for_each_populated_zone(zone) {
- struct per_cpu_pageset *pset;
- struct per_cpu_pages *pcp;
+ local_irq_save(flags);
+ pset = per_cpu_ptr(zone->pageset, cpu);
- local_irq_save(flags);
- pset = per_cpu_ptr(zone->pageset, cpu);
+ pcp = &pset->pcp;
+ if (pcp->count) {
+ free_pcppages_bulk(zone, pcp->count, pcp);
+ pcp->count = 0;
+ }
+ local_irq_restore(flags);
+}
- pcp = &pset->pcp;
- if (pcp->count) {
- free_pcppages_bulk(zone, pcp->count, pcp);
- pcp->count = 0;
- }
- local_irq_restore(flags);
+/*
+ * Drain pcplists of all zones on the indicated processor.
+ *
+ * The processor must either be the current processor and the
+ * thread pinned to the current processor or a processor that
+ * is not online.
+ */
+static void drain_pages(unsigned int cpu)
+{
+ struct zone *zone;
+
+ for_each_populated_zone(zone) {
+ drain_pages_zone(cpu, zone);
}
}
/*
* Spill all of this CPU's per-cpu pages back into the buddy allocator.
+ *
+ * The CPU has to be pinned. When zone parameter is non-NULL, spill just
+ * the single zone's pages.
*/
-void drain_local_pages(void *arg)
+void drain_local_pages(struct zone *zone)
{
- drain_pages(smp_processor_id());
+ int cpu = smp_processor_id();
+
+ if (zone)
+ drain_pages_zone(cpu, zone);
+ else
+ drain_pages(cpu);
}
/*
* Spill all the per-cpu pages from all CPUs back into the buddy allocator.
*
+ * When zone parameter is non-NULL, spill just the single zone's pages.
+ *
* Note that this code is protected against sending an IPI to an offline
* CPU but does not guarantee sending an IPI to newly hotplugged CPUs:
* on_each_cpu_mask() blocks hotplug and won't talk to offlined CPUs but
* nothing keeps CPUs from showing up after we populated the cpumask and
* before the call to on_each_cpu_mask().
*/
-void drain_all_pages(void)
+void drain_all_pages(struct zone *zone)
{
int cpu;
- struct per_cpu_pageset *pcp;
- struct zone *zone;
/*
* Allocate in the BSS so we wont require allocation in
* disables preemption as part of its processing
*/
for_each_online_cpu(cpu) {
+ struct per_cpu_pageset *pcp;
+ struct zone *z;
bool has_pcps = false;
- for_each_populated_zone(zone) {
+
+ if (zone) {
pcp = per_cpu_ptr(zone->pageset, cpu);
- if (pcp->pcp.count) {
+ if (pcp->pcp.count)
has_pcps = true;
- break;
+ } else {
+ for_each_populated_zone(z) {
+ pcp = per_cpu_ptr(z->pageset, cpu);
+ if (pcp->pcp.count) {
+ has_pcps = true;
+ break;
+ }
}
}
+
if (has_pcps)
cpumask_set_cpu(cpu, &cpus_with_pcps);
else
cpumask_clear_cpu(cpu, &cpus_with_pcps);
}
- on_each_cpu_mask(&cpus_with_pcps, drain_local_pages, NULL, 1);
+ on_each_cpu_mask(&cpus_with_pcps, (smp_call_func_t) drain_local_pages,
+ zone, 1);
}
#ifdef CONFIG_HIBERNATION
compact_result = try_to_compact_pages(zonelist, order, gfp_mask,
nodemask, mode,
contended_compaction,
+ alloc_flags, classzone_idx,
&last_compact_zone);
current->flags &= ~PF_MEMALLOC;
* pages are pinned on the per-cpu lists. Drain them and try again
*/
if (!page && !drained) {
- drain_all_pages();
+ drain_all_pages(NULL);
drained = true;
goto retry;
}
else
page_group_by_mobility_disabled = 0;
- printk("Built %i zonelists in %s order, mobility grouping %s. "
+ pr_info("Built %i zonelists in %s order, mobility grouping %s. "
"Total pages: %ld\n",
nr_online_nodes,
zonelist_order_name[current_zonelist_order],
page_group_by_mobility_disabled ? "off" : "on",
vm_total_pages);
#ifdef CONFIG_NUMA
- printk("Policy zone: %s\n", zone_names[policy_zone]);
+ pr_info("Policy zone: %s\n", zone_names[policy_zone]);
#endif
}
find_zone_movable_pfns_for_nodes();
/* Print out the zone ranges */
- printk("Zone ranges:\n");
+ pr_info("Zone ranges:\n");
for (i = 0; i < MAX_NR_ZONES; i++) {
if (i == ZONE_MOVABLE)
continue;
- printk(KERN_CONT " %-8s ", zone_names[i]);
+ pr_info(" %-8s ", zone_names[i]);
if (arch_zone_lowest_possible_pfn[i] ==
arch_zone_highest_possible_pfn[i])
- printk(KERN_CONT "empty\n");
+ pr_cont("empty\n");
else
- printk(KERN_CONT "[mem %0#10lx-%0#10lx]\n",
+ pr_cont("[mem %0#10lx-%0#10lx]\n",
arch_zone_lowest_possible_pfn[i] << PAGE_SHIFT,
(arch_zone_highest_possible_pfn[i]
<< PAGE_SHIFT) - 1);
}
/* Print out the PFNs ZONE_MOVABLE begins at in each node */
- printk("Movable zone start for each node\n");
+ pr_info("Movable zone start for each node\n");
for (i = 0; i < MAX_NUMNODES; i++) {
if (zone_movable_pfn[i])
- printk(" Node %d: %#010lx\n", i,
+ pr_info(" Node %d: %#010lx\n", i,
zone_movable_pfn[i] << PAGE_SHIFT);
}
/* Print out the early node map */
- printk("Early memory node ranges\n");
+ pr_info("Early memory node ranges\n");
for_each_mem_pfn_range(i, MAX_NUMNODES, &start_pfn, &end_pfn, &nid)
- printk(" node %3d: [mem %#010lx-%#010lx]\n", nid,
+ pr_info(" node %3d: [mem %#010lx-%#010lx]\n", nid,
start_pfn << PAGE_SHIFT, (end_pfn << PAGE_SHIFT) - 1);
/* Initialise every node */
#undef adj_init_size
- printk("Memory: %luK/%luK available "
+ pr_info("Memory: %luK/%luK available "
"(%luK kernel code, %luK rwdata, %luK rodata, "
"%luK init, %luK bss, %luK reserved"
#ifdef CONFIG_HIGHMEM
*/
lru_add_drain_all();
- drain_all_pages();
+ drain_all_pages(cc.zone);
order = 0;
outer_start = start;
git.openpandora.org / pandora-kernel.git / blobdiff