The patch titled
mm: do not check unpopulated zones for draining and counter updates
has been removed from the -mm tree. Its filename is
do-not-check-unpopulated-zones-for-draining-and-counter.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: mm: do not check unpopulated zones for draining and counter updates
From: Christoph Lameter <clameter@xxxxxxx>
If a zone is unpopulated then we do not need to check for pages that are to
be drained and also not for vm counters that may need to be updated.
Signed-off-by: Christoph Lameter <clameter@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
mm/page_alloc.c | 5 ++++-
mm/vmstat.c | 3 +++
2 files changed, 7 insertions(+), 1 deletion(-)
diff -puN mm/page_alloc.c~do-not-check-unpopulated-zones-for-draining-and-counter mm/page_alloc.c
--- a/mm/page_alloc.c~do-not-check-unpopulated-zones-for-draining-and-counter
+++ a/mm/page_alloc.c
@@ -633,7 +633,7 @@ static int rmqueue_bulk(struct zone *zon
#ifdef CONFIG_NUMA
/*
* Called from the slab reaper to drain pagesets on a particular node that
- * belong to the currently executing processor.
+ * belongs to the currently executing processor.
* Note that this function must be called with the thread pinned to
* a single processor.
*/
@@ -647,6 +647,9 @@ void drain_node_pages(int nodeid)
struct zone *zone = NODE_DATA(nodeid)->node_zones + z;
struct per_cpu_pageset *pset;
+ if (!populated_zone(zone))
+ continue;
+
pset = zone_pcp(zone, smp_processor_id());
for (i = 0; i < ARRAY_SIZE(pset->pcp); i++) {
struct per_cpu_pages *pcp;
diff -puN mm/vmstat.c~do-not-check-unpopulated-zones-for-draining-and-counter mm/vmstat.c
--- a/mm/vmstat.c~do-not-check-unpopulated-zones-for-draining-and-counter
+++ a/mm/vmstat.c
@@ -321,6 +321,9 @@ void refresh_cpu_vm_stats(int cpu)
for_each_zone(zone) {
struct per_cpu_pageset *pcp;
+ if (!populated_zone(zone))
+ continue;
+
pcp = zone_pcp(zone, cpu);
for (i = 0; i < NR_VM_ZONE_STAT_ITEMS; i++)
_
Patches currently in -mm which might be from clameter@xxxxxxx are
origin.patch
git-ia64.patch
slab-fix-kmalloc_node-applying-memory-policies-if-nodeid-==-numa_node_id.patch
add-numa_build-definition-in-kernelh-to-avoid-ifdef.patch
disable-gfp_thisnode-in-the-non-numa-case.patch
gfp_thisnode-for-the-slab-allocator-v2.patch
gfp_thisnode-for-the-slab-allocator-v2-fix-3.patch
add-node-to-zone-for-the-numa-case.patch
add-node-to-zone-for-the-numa-case-fix.patch
get-rid-of-zone_table.patch
get-rid-of-zone_table-fix.patch
do-not-allocate-pagesets-for-unpopulated-zones.patch
zone_statistics-use-hot-node-instead-of-cold-zone_pgdat.patch
deal-with-cases-of-zone_dma-meaning-the-first-zone.patch
introduce-config_zone_dma.patch
optional-zone_dma-in-the-vm.patch
optional-zone_dma-for-i386.patch
optional-zone_dma-for-x86_64.patch
optional-zone_dma-for-ia64.patch
remove-zone_dma-remains-from-parisc.patch
remove-zone_dma-remains-from-sh-sh64.patch
radix-tree-rcu-lockless-readside.patch
scheduler-numa-aware-placement-of-sched_group_allnodes.patch
zvc-support-nr_slab_reclaimable--nr_slab_unreclaimable-swap_prefetch.patch
reduce-max_nr_zones-swap_prefetch-remove-incorrect-use-of-zone_highmem.patch
numa-add-zone_to_nid-function-swap_prefetch.patch
readahead-state-based-method-aging-accounting-apply-type-enum-zone_type-readahead.patch
-
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