unsigned long totalreserve_pages __read_mostly;
unsigned long highest_memmap_pfn __read_mostly;
int percpu_pagelist_fraction;
+gfp_t gfp_allowed_mask __read_mostly = GFP_BOOT_MASK;
#ifdef CONFIG_HUGETLB_PAGE_SIZE_VARIABLE
int pageblock_order __read_mostly;
*/
static inline void free_page_mlock(struct page *page)
{
- __ClearPageMlocked(page);
__dec_zone_page_state(page, NR_MLOCK);
__count_vm_event(UNEVICTABLE_MLOCKFREED);
}
unsigned long flags;
int i;
int bad = 0;
- int clearMlocked = PageMlocked(page);
+ int wasMlocked = TestClearPageMlocked(page);
kmemcheck_free_shadow(page, order);
kernel_map_pages(page, 1 << order, 0);
local_irq_save(flags);
- if (unlikely(clearMlocked))
+ if (unlikely(wasMlocked))
free_page_mlock(page);
__count_vm_events(PGFREE, 1 << order);
free_one_page(page_zone(page), page, order,
struct zone *zone = page_zone(page);
struct per_cpu_pages *pcp;
unsigned long flags;
- int clearMlocked = PageMlocked(page);
+ int wasMlocked = TestClearPageMlocked(page);
kmemcheck_free_shadow(page, 0);
pcp = &zone_pcp(zone, get_cpu())->pcp;
set_page_private(page, get_pageblock_migratetype(page));
local_irq_save(flags);
- if (unlikely(clearMlocked))
+ if (unlikely(wasMlocked))
free_page_mlock(page);
__count_vm_event(PGFREE);
* properly detect and handle allocation failures.
*
* We most definitely don't want callers attempting to
- * allocate greater than single-page units with
+ * allocate greater than order-1 page units with
* __GFP_NOFAIL.
*/
- WARN_ON_ONCE(order > 0);
+ WARN_ON_ONCE(order > 1);
}
spin_lock_irqsave(&zone->lock, flags);
page = __rmqueue(zone, order, migratetype);
struct page *page;
int migratetype = allocflags_to_migratetype(gfp_mask);
+ gfp_mask &= gfp_allowed_mask;
+
lockdep_trace_alloc(gfp_mask);
might_sleep_if(gfp_mask & __GFP_WAIT);
if (dzone == zone)
break;
kfree(zone_pcp(dzone, cpu));
- zone_pcp(dzone, cpu) = NULL;
+ zone_pcp(dzone, cpu) = &boot_pageset[cpu];
}
return -ENOMEM;
}
/* 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];
}
}
ret = proc_dointvec_minmax(table, write, file, buffer, length, ppos);
if (!write || (ret == -EINVAL))
return ret;
- for_each_zone(zone) {
+ for_each_populated_zone(zone) {
for_each_online_cpu(cpu) {
unsigned long high;
high = zone->present_pages / percpu_pagelist_fraction;