#include <linux/sched/rt.h>
#include <linux/page_owner.h>
#include <linux/kthread.h>
+#include <linux/memcontrol.h>
#include <asm/sections.h>
#include <asm/tlbflush.h>
return false;
}
-static inline bool early_page_nid_uninitialised(unsigned long pfn, int nid)
-{
- if (pfn >= NODE_DATA(nid)->first_deferred_pfn)
- return true;
-
- return false;
-}
-
/*
* Returns false when the remaining initialisation should be deferred until
* later in the boot cycle when it can be parallelised.
return false;
}
-static inline bool early_page_nid_uninitialised(unsigned long pfn, int nid)
-{
- return false;
-}
-
static inline bool update_defer_init(pg_data_t *pgdat,
unsigned long pfn, unsigned long zone_end,
unsigned long *nr_initialised)
VM_BUG_ON_PAGE(compound && compound_order(page) != order, page);
+ if (compound)
+ ClearPageDoubleMap(page);
for (i = 1; i < (1 << order); i++) {
if (compound)
bad += free_tail_pages_check(page, page + i);
(page + i)->flags &= ~PAGE_FLAGS_CHECK_AT_PREP;
}
}
- if (PageAnonHead(page))
+ if (PageMappingFlags(page))
page->mapping = NULL;
+ if (memcg_kmem_enabled() && PageKmemcg(page)) {
+ memcg_kmem_uncharge(page, order);
+ __ClearPageKmemcg(page);
+ }
if (check_free)
bad += free_pages_check(page);
if (bad)
spin_lock(&zone->lock);
isolated_pageblocks = has_isolate_pageblock(zone);
- nr_scanned = zone_page_state(zone, NR_PAGES_SCANNED);
+ nr_scanned = node_page_state(zone->zone_pgdat, NR_PAGES_SCANNED);
if (nr_scanned)
- __mod_zone_page_state(zone, NR_PAGES_SCANNED, -nr_scanned);
+ __mod_node_page_state(zone->zone_pgdat, NR_PAGES_SCANNED, -nr_scanned);
while (count) {
struct page *page;
{
unsigned long nr_scanned;
spin_lock(&zone->lock);
- nr_scanned = zone_page_state(zone, NR_PAGES_SCANNED);
+ nr_scanned = node_page_state(zone->zone_pgdat, NR_PAGES_SCANNED);
if (nr_scanned)
- __mod_zone_page_state(zone, NR_PAGES_SCANNED, -nr_scanned);
+ __mod_node_page_state(zone->zone_pgdat, NR_PAGES_SCANNED, -nr_scanned);
if (unlikely(has_isolate_pageblock(zone) ||
is_migrate_isolate(migratetype))) {
return false;
}
+inline void post_alloc_hook(struct page *page, unsigned int order,
+ gfp_t gfp_flags)
+{
+ set_page_private(page, 0);
+ set_page_refcounted(page);
+
+ arch_alloc_page(page, order);
+ kernel_map_pages(page, 1 << order, 1);
+ kernel_poison_pages(page, 1 << order, 1);
+ kasan_alloc_pages(page, order);
+ set_page_owner(page, order, gfp_flags);
+}
+
static void prep_new_page(struct page *page, unsigned int order, gfp_t gfp_flags,
unsigned int alloc_flags)
{
poisoned &= page_is_poisoned(p);
}
- set_page_private(page, 0);
- set_page_refcounted(page);
-
- arch_alloc_page(page, order);
- kernel_map_pages(page, 1 << order, 1);
- kernel_poison_pages(page, 1 << order, 1);
- kasan_alloc_pages(page, order);
+ post_alloc_hook(page, order, gfp_flags);
if (!free_pages_prezeroed(poisoned) && (gfp_flags & __GFP_ZERO))
for (i = 0; i < (1 << order); i++)
if (order && (gfp_flags & __GFP_COMP))
prep_compound_page(page, order);
- set_page_owner(page, order, gfp_flags);
-
/*
* page is set pfmemalloc when ALLOC_NO_WATERMARKS was necessary to
* allocate the page. The expectation is that the caller is taking
void split_page(struct page *page, unsigned int order)
{
int i;
- gfp_t gfp_mask;
VM_BUG_ON_PAGE(PageCompound(page), page);
VM_BUG_ON_PAGE(!page_count(page), page);
split_page(virt_to_page(page[0].shadow), order);
#endif
- gfp_mask = get_page_owner_gfp(page);
- set_page_owner(page, 0, gfp_mask);
- for (i = 1; i < (1 << order); i++) {
+ for (i = 1; i < (1 << order); i++)
set_page_refcounted(page + i);
- set_page_owner(page + i, 0, gfp_mask);
- }
+ split_page_owner(page, order);
}
EXPORT_SYMBOL_GPL(split_page);
zone->free_area[order].nr_free--;
rmv_page_order(page);
- set_page_owner(page, order, __GFP_MOVABLE);
-
- /* Set the pageblock if the isolated page is at least a pageblock */
+ /*
+ * Set the pageblock if the isolated page is at least half of a
+ * pageblock
+ */
if (order >= pageblock_order - 1) {
struct page *endpage = page + (1 << order) - 1;
for (; page < endpage; page += pageblock_nr_pages) {
return 1UL << order;
}
-/*
- * Similar to split_page except the page is already free. As this is only
- * being used for migration, the migratetype of the block also changes.
- * As this is called with interrupts disabled, the caller is responsible
- * for calling arch_alloc_page() and kernel_map_page() after interrupts
- * are enabled.
- *
- * Note: this is probably too low level an operation for use in drivers.
- * Please consult with lkml before using this in your driver.
- */
-int split_free_page(struct page *page)
-{
- unsigned int order;
- int nr_pages;
-
- order = page_order(page);
-
- nr_pages = __isolate_free_page(page, order);
- if (!nr_pages)
- return 0;
-
- /* Split into individual pages */
- set_page_refcounted(page);
- split_page(page, order);
- return nr_pages;
-}
-
/*
* Update NUMA hit/miss statistics
*
else
page = list_first_entry(list, struct page, lru);
- __dec_zone_state(zone, NR_ALLOC_BATCH);
list_del(&page->lru);
pcp->count--;
spin_unlock(&zone->lock);
if (!page)
goto failed;
- __mod_zone_page_state(zone, NR_ALLOC_BATCH, -(1 << order));
__mod_zone_freepage_state(zone, -(1 << order),
get_pcppage_migratetype(page));
}
- if (atomic_long_read(&zone->vm_stat[NR_ALLOC_BATCH]) <= 0 &&
- !test_bit(ZONE_FAIR_DEPLETED, &zone->flags))
- set_bit(ZONE_FAIR_DEPLETED, &zone->flags);
-
__count_zone_vm_events(PGALLOC, zone, 1 << order);
zone_statistics(preferred_zone, zone, gfp_flags);
local_irq_restore(flags);
}
#ifdef CONFIG_NUMA
-static bool zone_local(struct zone *local_zone, struct zone *zone)
-{
- return local_zone->node == zone->node;
-}
-
static bool zone_allows_reclaim(struct zone *local_zone, struct zone *zone)
{
return node_distance(zone_to_nid(local_zone), zone_to_nid(zone)) <
RECLAIM_DISTANCE;
}
#else /* CONFIG_NUMA */
-static bool zone_local(struct zone *local_zone, struct zone *zone)
-{
- return true;
-}
-
static bool zone_allows_reclaim(struct zone *local_zone, struct zone *zone)
{
return true;
}
#endif /* CONFIG_NUMA */
-static void reset_alloc_batches(struct zone *preferred_zone)
-{
- struct zone *zone = preferred_zone->zone_pgdat->node_zones;
-
- do {
- mod_zone_page_state(zone, NR_ALLOC_BATCH,
- high_wmark_pages(zone) - low_wmark_pages(zone) -
- atomic_long_read(&zone->vm_stat[NR_ALLOC_BATCH]));
- clear_bit(ZONE_FAIR_DEPLETED, &zone->flags);
- } while (zone++ != preferred_zone);
-}
-
/*
* get_page_from_freelist goes through the zonelist trying to allocate
* a page.
{
struct zoneref *z = ac->preferred_zoneref;
struct zone *zone;
- bool fair_skipped = false;
- bool apply_fair = (alloc_flags & ALLOC_FAIR);
+ struct pglist_data *last_pgdat_dirty_limit = NULL;
-zonelist_scan:
/*
* Scan zonelist, looking for a zone with enough free.
* See also __cpuset_node_allowed() comment in kernel/cpuset.c.
(alloc_flags & ALLOC_CPUSET) &&
!__cpuset_zone_allowed(zone, gfp_mask))
continue;
- /*
- * Distribute pages in proportion to the individual
- * zone size to ensure fair page aging. The zone a
- * page was allocated in should have no effect on the
- * time the page has in memory before being reclaimed.
- */
- if (apply_fair) {
- if (test_bit(ZONE_FAIR_DEPLETED, &zone->flags)) {
- fair_skipped = true;
- continue;
- }
- if (!zone_local(ac->preferred_zoneref->zone, zone)) {
- if (fair_skipped)
- goto reset_fair;
- apply_fair = false;
- }
- }
/*
* When allocating a page cache page for writing, we
- * want to get it from a zone that is within its dirty
- * limit, such that no single zone holds more than its
+ * want to get it from a node that is within its dirty
+ * limit, such that no single node holds more than its
* proportional share of globally allowed dirty pages.
- * The dirty limits take into account the zone's
+ * The dirty limits take into account the node's
* lowmem reserves and high watermark so that kswapd
* should be able to balance it without having to
* write pages from its LRU list.
*
- * This may look like it could increase pressure on
- * lower zones by failing allocations in higher zones
- * before they are full. But the pages that do spill
- * over are limited as the lower zones are protected
- * by this very same mechanism. It should not become
- * a practical burden to them.
- *
* XXX: For now, allow allocations to potentially
- * exceed the per-zone dirty limit in the slowpath
+ * exceed the per-node dirty limit in the slowpath
* (spread_dirty_pages unset) before going into reclaim,
* which is important when on a NUMA setup the allowed
- * zones are together not big enough to reach the
+ * nodes are together not big enough to reach the
* global limit. The proper fix for these situations
- * will require awareness of zones in the
+ * will require awareness of nodes in the
* dirty-throttling and the flusher threads.
*/
- if (ac->spread_dirty_pages && !zone_dirty_ok(zone))
- continue;
+ if (ac->spread_dirty_pages) {
+ if (last_pgdat_dirty_limit == zone->zone_pgdat)
+ continue;
+
+ if (!node_dirty_ok(zone->zone_pgdat)) {
+ last_pgdat_dirty_limit = zone->zone_pgdat;
+ continue;
+ }
+ }
mark = zone->watermark[alloc_flags & ALLOC_WMARK_MASK];
if (!zone_watermark_fast(zone, order, mark,
if (alloc_flags & ALLOC_NO_WATERMARKS)
goto try_this_zone;
- if (zone_reclaim_mode == 0 ||
+ if (node_reclaim_mode == 0 ||
!zone_allows_reclaim(ac->preferred_zoneref->zone, zone))
continue;
- ret = zone_reclaim(zone, gfp_mask, order);
+ ret = node_reclaim(zone->zone_pgdat, gfp_mask, order);
switch (ret) {
- case ZONE_RECLAIM_NOSCAN:
+ case NODE_RECLAIM_NOSCAN:
/* did not scan */
continue;
- case ZONE_RECLAIM_FULL:
+ case NODE_RECLAIM_FULL:
/* scanned but unreclaimable */
continue;
default:
}
}
- /*
- * The first pass makes sure allocations are spread fairly within the
- * local node. However, the local node might have free pages left
- * after the fairness batches are exhausted, and remote zones haven't
- * even been considered yet. Try once more without fairness, and
- * include remote zones now, before entering the slowpath and waking
- * kswapd: prefer spilling to a remote zone over swapping locally.
- */
- if (fair_skipped) {
-reset_fair:
- apply_fair = false;
- fair_skipped = false;
- reset_alloc_batches(ac->preferred_zoneref->zone);
- z = ac->preferred_zoneref;
- goto zonelist_scan;
- }
-
return NULL;
}
struct oom_control oc = {
.zonelist = ac->zonelist,
.nodemask = ac->nodemask,
+ .memcg = NULL,
.gfp_mask = gfp_mask,
.order = order,
};
{
struct zoneref *z;
struct zone *zone;
+ pg_data_t *last_pgdat = NULL;
for_each_zone_zonelist_nodemask(zone, z, ac->zonelist,
- ac->high_zoneidx, ac->nodemask)
- wakeup_kswapd(zone, order, ac_classzone_idx(ac));
+ ac->high_zoneidx, ac->nodemask) {
+ if (last_pgdat != zone->zone_pgdat)
+ wakeup_kswapd(zone, order, ac->high_zoneidx);
+ last_pgdat = zone->zone_pgdat;
+ }
}
static inline unsigned int
* prevent from pre mature OOM
*/
if (!did_some_progress) {
- unsigned long writeback;
- unsigned long dirty;
+ unsigned long write_pending;
- writeback = zone_page_state_snapshot(zone,
- NR_WRITEBACK);
- dirty = zone_page_state_snapshot(zone, NR_FILE_DIRTY);
+ write_pending = zone_page_state_snapshot(zone,
+ NR_ZONE_WRITE_PENDING);
- if (2*(writeback + dirty) > reclaimable) {
+ if (2 * write_pending > reclaimable) {
congestion_wait(BLK_RW_ASYNC, HZ/10);
return true;
}
{
struct page *page;
unsigned int cpuset_mems_cookie;
- unsigned int alloc_flags = ALLOC_WMARK_LOW|ALLOC_FAIR;
+ unsigned int alloc_flags = ALLOC_WMARK_LOW;
gfp_t alloc_mask = gfp_mask; /* The gfp_t that was actually used for allocation */
struct alloc_context ac = {
.high_zoneidx = gfp_zone(gfp_mask),
}
out:
+ if (memcg_kmem_enabled() && (gfp_mask & __GFP_ACCOUNT) && page) {
+ if (unlikely(memcg_kmem_charge(page, gfp_mask, order))) {
+ __free_pages(page, order);
+ page = NULL;
+ } else
+ __SetPageKmemcg(page);
+ }
+
if (kmemcheck_enabled && page)
kmemcheck_pagealloc_alloc(page, order, gfp_mask);
}
EXPORT_SYMBOL(__free_page_frag);
-/*
- * alloc_kmem_pages charges newly allocated pages to the kmem resource counter
- * of the current memory cgroup if __GFP_ACCOUNT is set, other than that it is
- * equivalent to alloc_pages.
- *
- * It should be used when the caller would like to use kmalloc, but since the
- * allocation is large, it has to fall back to the page allocator.
- */
-struct page *alloc_kmem_pages(gfp_t gfp_mask, unsigned int order)
-{
- struct page *page;
-
- page = alloc_pages(gfp_mask, order);
- if (page && memcg_kmem_charge(page, gfp_mask, order) != 0) {
- __free_pages(page, order);
- page = NULL;
- }
- return page;
-}
-
-struct page *alloc_kmem_pages_node(int nid, gfp_t gfp_mask, unsigned int order)
-{
- struct page *page;
-
- page = alloc_pages_node(nid, gfp_mask, order);
- if (page && memcg_kmem_charge(page, gfp_mask, order) != 0) {
- __free_pages(page, order);
- page = NULL;
- }
- return page;
-}
-
-/*
- * __free_kmem_pages and free_kmem_pages will free pages allocated with
- * alloc_kmem_pages.
- */
-void __free_kmem_pages(struct page *page, unsigned int order)
-{
- memcg_kmem_uncharge(page, order);
- __free_pages(page, order);
-}
-
-void free_kmem_pages(unsigned long addr, unsigned int order)
-{
- if (addr != 0) {
- VM_BUG_ON(!virt_addr_valid((void *)addr));
- __free_kmem_pages(virt_to_page((void *)addr), order);
- }
-}
-
static void *make_alloc_exact(unsigned long addr, unsigned int order,
size_t size)
{
void si_meminfo(struct sysinfo *val)
{
val->totalram = totalram_pages;
- val->sharedram = global_page_state(NR_SHMEM);
+ val->sharedram = global_node_page_state(NR_SHMEM);
val->freeram = global_page_state(NR_FREE_PAGES);
val->bufferram = nr_blockdev_pages();
val->totalhigh = totalhigh_pages;
for (zone_type = 0; zone_type < MAX_NR_ZONES; zone_type++)
managed_pages += pgdat->node_zones[zone_type].managed_pages;
val->totalram = managed_pages;
- val->sharedram = node_page_state(nid, NR_SHMEM);
- val->freeram = node_page_state(nid, NR_FREE_PAGES);
+ val->sharedram = node_page_state(pgdat, NR_SHMEM);
+ val->freeram = sum_zone_node_page_state(nid, NR_FREE_PAGES);
#ifdef CONFIG_HIGHMEM
for (zone_type = 0; zone_type < MAX_NR_ZONES; zone_type++) {
struct zone *zone = &pgdat->node_zones[zone_type];
unsigned long free_pcp = 0;
int cpu;
struct zone *zone;
+ pg_data_t *pgdat;
for_each_populated_zone(zone) {
if (skip_free_areas_node(filter, zone_to_nid(zone)))
" slab_reclaimable:%lu slab_unreclaimable:%lu\n"
" mapped:%lu shmem:%lu pagetables:%lu bounce:%lu\n"
" free:%lu free_pcp:%lu free_cma:%lu\n",
- global_page_state(NR_ACTIVE_ANON),
- global_page_state(NR_INACTIVE_ANON),
- global_page_state(NR_ISOLATED_ANON),
- global_page_state(NR_ACTIVE_FILE),
- global_page_state(NR_INACTIVE_FILE),
- global_page_state(NR_ISOLATED_FILE),
- global_page_state(NR_UNEVICTABLE),
- global_page_state(NR_FILE_DIRTY),
- global_page_state(NR_WRITEBACK),
- global_page_state(NR_UNSTABLE_NFS),
+ global_node_page_state(NR_ACTIVE_ANON),
+ global_node_page_state(NR_INACTIVE_ANON),
+ global_node_page_state(NR_ISOLATED_ANON),
+ global_node_page_state(NR_ACTIVE_FILE),
+ global_node_page_state(NR_INACTIVE_FILE),
+ global_node_page_state(NR_ISOLATED_FILE),
+ global_node_page_state(NR_UNEVICTABLE),
+ global_node_page_state(NR_FILE_DIRTY),
+ global_node_page_state(NR_WRITEBACK),
+ global_node_page_state(NR_UNSTABLE_NFS),
global_page_state(NR_SLAB_RECLAIMABLE),
global_page_state(NR_SLAB_UNRECLAIMABLE),
- global_page_state(NR_FILE_MAPPED),
- global_page_state(NR_SHMEM),
+ global_node_page_state(NR_FILE_MAPPED),
+ global_node_page_state(NR_SHMEM),
global_page_state(NR_PAGETABLE),
global_page_state(NR_BOUNCE),
global_page_state(NR_FREE_PAGES),
free_pcp,
global_page_state(NR_FREE_CMA_PAGES));
+ for_each_online_pgdat(pgdat) {
+ printk("Node %d"
+ " active_anon:%lukB"
+ " inactive_anon:%lukB"
+ " active_file:%lukB"
+ " inactive_file:%lukB"
+ " unevictable:%lukB"
+ " isolated(anon):%lukB"
+ " isolated(file):%lukB"
+ " mapped:%lukB"
+ " dirty:%lukB"
+ " writeback:%lukB"
+ " shmem:%lukB"
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ " shmem_thp: %lukB"
+ " shmem_pmdmapped: %lukB"
+ " anon_thp: %lukB"
+#endif
+ " writeback_tmp:%lukB"
+ " unstable:%lukB"
+ " all_unreclaimable? %s"
+ "\n",
+ pgdat->node_id,
+ K(node_page_state(pgdat, NR_ACTIVE_ANON)),
+ K(node_page_state(pgdat, NR_INACTIVE_ANON)),
+ K(node_page_state(pgdat, NR_ACTIVE_FILE)),
+ K(node_page_state(pgdat, NR_INACTIVE_FILE)),
+ K(node_page_state(pgdat, NR_UNEVICTABLE)),
+ K(node_page_state(pgdat, NR_ISOLATED_ANON)),
+ K(node_page_state(pgdat, NR_ISOLATED_FILE)),
+ K(node_page_state(pgdat, NR_FILE_MAPPED)),
+ K(node_page_state(pgdat, NR_FILE_DIRTY)),
+ K(node_page_state(pgdat, NR_WRITEBACK)),
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ K(node_page_state(pgdat, NR_SHMEM_THPS) * HPAGE_PMD_NR),
+ K(node_page_state(pgdat, NR_SHMEM_PMDMAPPED)
+ * HPAGE_PMD_NR),
+ K(node_page_state(pgdat, NR_ANON_THPS) * HPAGE_PMD_NR),
+#endif
+ K(node_page_state(pgdat, NR_SHMEM)),
+ K(node_page_state(pgdat, NR_WRITEBACK_TEMP)),
+ K(node_page_state(pgdat, NR_UNSTABLE_NFS)),
+ !pgdat_reclaimable(pgdat) ? "yes" : "no");
+ }
+
for_each_populated_zone(zone) {
int i;
" min:%lukB"
" low:%lukB"
" high:%lukB"
- " active_anon:%lukB"
- " inactive_anon:%lukB"
- " active_file:%lukB"
- " inactive_file:%lukB"
- " unevictable:%lukB"
- " isolated(anon):%lukB"
- " isolated(file):%lukB"
" present:%lukB"
" managed:%lukB"
" mlocked:%lukB"
- " dirty:%lukB"
- " writeback:%lukB"
- " mapped:%lukB"
- " shmem:%lukB"
" slab_reclaimable:%lukB"
" slab_unreclaimable:%lukB"
" kernel_stack:%lukB"
" pagetables:%lukB"
- " unstable:%lukB"
" bounce:%lukB"
" free_pcp:%lukB"
" local_pcp:%ukB"
" free_cma:%lukB"
- " writeback_tmp:%lukB"
- " pages_scanned:%lu"
- " all_unreclaimable? %s"
+ " node_pages_scanned:%lu"
"\n",
zone->name,
K(zone_page_state(zone, NR_FREE_PAGES)),
K(min_wmark_pages(zone)),
K(low_wmark_pages(zone)),
K(high_wmark_pages(zone)),
- K(zone_page_state(zone, NR_ACTIVE_ANON)),
- K(zone_page_state(zone, NR_INACTIVE_ANON)),
- K(zone_page_state(zone, NR_ACTIVE_FILE)),
- K(zone_page_state(zone, NR_INACTIVE_FILE)),
- K(zone_page_state(zone, NR_UNEVICTABLE)),
- K(zone_page_state(zone, NR_ISOLATED_ANON)),
- K(zone_page_state(zone, NR_ISOLATED_FILE)),
K(zone->present_pages),
K(zone->managed_pages),
K(zone_page_state(zone, NR_MLOCK)),
- K(zone_page_state(zone, NR_FILE_DIRTY)),
- K(zone_page_state(zone, NR_WRITEBACK)),
- K(zone_page_state(zone, NR_FILE_MAPPED)),
- K(zone_page_state(zone, NR_SHMEM)),
K(zone_page_state(zone, NR_SLAB_RECLAIMABLE)),
K(zone_page_state(zone, NR_SLAB_UNRECLAIMABLE)),
zone_page_state(zone, NR_KERNEL_STACK) *
THREAD_SIZE / 1024,
K(zone_page_state(zone, NR_PAGETABLE)),
- K(zone_page_state(zone, NR_UNSTABLE_NFS)),
K(zone_page_state(zone, NR_BOUNCE)),
K(free_pcp),
K(this_cpu_read(zone->pageset->pcp.count)),
K(zone_page_state(zone, NR_FREE_CMA_PAGES)),
- K(zone_page_state(zone, NR_WRITEBACK_TEMP)),
- K(zone_page_state(zone, NR_PAGES_SCANNED)),
- (!zone_reclaimable(zone) ? "yes" : "no")
- );
+ K(node_page_state(zone->zone_pgdat, NR_PAGES_SCANNED)));
printk("lowmem_reserve[]:");
for (i = 0; i < MAX_NR_ZONES; i++)
printk(" %ld", zone->lowmem_reserve[i]);
hugetlb_show_meminfo();
- printk("%ld total pagecache pages\n", global_page_state(NR_FILE_PAGES));
+ printk("%ld total pagecache pages\n", global_node_page_state(NR_FILE_PAGES));
show_swap_cache_info();
}
zone->pageset = alloc_percpu(struct per_cpu_pageset);
for_each_possible_cpu(cpu)
zone_pageset_init(zone, cpu);
+
+ if (!zone->zone_pgdat->per_cpu_nodestats) {
+ zone->zone_pgdat->per_cpu_nodestats =
+ alloc_percpu(struct per_cpu_nodestat);
+ }
}
/*
init_waitqueue_head(&pgdat->kcompactd_wait);
#endif
pgdat_page_ext_init(pgdat);
+ spin_lock_init(&pgdat->lru_lock);
+ lruvec_init(node_lruvec(pgdat));
for (j = 0; j < MAX_NR_ZONES; j++) {
struct zone *zone = pgdat->node_zones + j;
zone->managed_pages = is_highmem_idx(j) ? realsize : freesize;
#ifdef CONFIG_NUMA
zone->node = nid;
- zone->min_unmapped_pages = (freesize*sysctl_min_unmapped_ratio)
+ pgdat->min_unmapped_pages += (freesize*sysctl_min_unmapped_ratio)
/ 100;
- zone->min_slab_pages = (freesize * sysctl_min_slab_ratio) / 100;
+ pgdat->min_slab_pages += (freesize * sysctl_min_slab_ratio) / 100;
#endif
zone->name = zone_names[j];
+ zone->zone_pgdat = pgdat;
spin_lock_init(&zone->lock);
- spin_lock_init(&zone->lru_lock);
zone_seqlock_init(zone);
- zone->zone_pgdat = pgdat;
zone_pcp_init(zone);
- /* For bootup, initialized properly in watermark setup */
- mod_zone_page_state(zone, NR_ALLOC_BATCH, zone->managed_pages);
-
- lruvec_init(&zone->lruvec);
if (!size)
continue;
unsigned long end_pfn = 0;
/* pg_data_t should be reset to zero when it's allocated */
- WARN_ON(pgdat->nr_zones || pgdat->classzone_idx);
+ WARN_ON(pgdat->nr_zones || pgdat->kswapd_classzone_idx);
reset_deferred_meminit(pgdat);
pgdat->node_id = nid;
pgdat->node_start_pfn = node_start_pfn;
+ pgdat->per_cpu_nodestats = NULL;
#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
get_pfn_range_for_nid(nid, &start_pfn, &end_pfn);
pr_info("Initmem setup node %d [mem %#018Lx-%#018Lx]\n", nid,
sizeof(arch_zone_lowest_possible_pfn));
memset(arch_zone_highest_possible_pfn, 0,
sizeof(arch_zone_highest_possible_pfn));
- arch_zone_lowest_possible_pfn[0] = find_min_pfn_with_active_regions();
- arch_zone_highest_possible_pfn[0] = max_zone_pfn[0];
- for (i = 1; i < MAX_NR_ZONES; i++) {
+
+ start_pfn = find_min_pfn_with_active_regions();
+
+ for (i = 0; i < MAX_NR_ZONES; i++) {
if (i == ZONE_MOVABLE)
continue;
- arch_zone_lowest_possible_pfn[i] =
- arch_zone_highest_possible_pfn[i-1];
- arch_zone_highest_possible_pfn[i] =
- max(max_zone_pfn[i], arch_zone_lowest_possible_pfn[i]);
+
+ end_pfn = max(max_zone_pfn[i], start_pfn);
+ arch_zone_lowest_possible_pfn[i] = start_pfn;
+ arch_zone_highest_possible_pfn[i] = end_pfn;
+
+ start_pfn = end_pfn;
}
arch_zone_lowest_possible_pfn[ZONE_MOVABLE] = 0;
arch_zone_highest_possible_pfn[ZONE_MOVABLE] = 0;
enum zone_type i, j;
for_each_online_pgdat(pgdat) {
+
+ pgdat->totalreserve_pages = 0;
+
for (i = 0; i < MAX_NR_ZONES; i++) {
struct zone *zone = pgdat->node_zones + i;
long max = 0;
if (max > zone->managed_pages)
max = zone->managed_pages;
- zone->totalreserve_pages = max;
+ pgdat->totalreserve_pages += max;
reserve_pages += max;
}
zone->watermark[WMARK_LOW] = min_wmark_pages(zone) + tmp;
zone->watermark[WMARK_HIGH] = min_wmark_pages(zone) + tmp * 2;
- __mod_zone_page_state(zone, NR_ALLOC_BATCH,
- high_wmark_pages(zone) - low_wmark_pages(zone) -
- atomic_long_read(&zone->vm_stat[NR_ALLOC_BATCH]));
-
spin_unlock_irqrestore(&zone->lock, flags);
}
int sysctl_min_unmapped_ratio_sysctl_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *length, loff_t *ppos)
{
+ struct pglist_data *pgdat;
struct zone *zone;
int rc;
if (rc)
return rc;
+ for_each_online_pgdat(pgdat)
+ pgdat->min_slab_pages = 0;
+
for_each_zone(zone)
- zone->min_unmapped_pages = (zone->managed_pages *
+ zone->zone_pgdat->min_unmapped_pages += (zone->managed_pages *
sysctl_min_unmapped_ratio) / 100;
return 0;
}
int sysctl_min_slab_ratio_sysctl_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *length, loff_t *ppos)
{
+ struct pglist_data *pgdat;
struct zone *zone;
int rc;
if (rc)
return rc;
+ for_each_online_pgdat(pgdat)
+ pgdat->min_slab_pages = 0;
+
for_each_zone(zone)
- zone->min_slab_pages = (zone->managed_pages *
+ zone->zone_pgdat->min_slab_pages += (zone->managed_pages *
sysctl_min_slab_ratio) / 100;
return 0;
}
projects / cascardo / linux.git / blobdiff