The patch titled
Subject: memcg: move memcg_stock initialization to mem_cgroup_init
has been added to the -mm tree. Its filename is
memcg-move-memcg_stock-initialization-to-mem_cgroup_init.patch
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------------------------------------------------------
From: Michal Hocko <mhocko@xxxxxxx>
Subject: memcg: move memcg_stock initialization to mem_cgroup_init
memcg_stock are currently initialized during the root cgroup allocation
which is OK but it pointlessly pollutes memcg allocation code with
something that can be called when the memcg subsystem is initialized by
mem_cgroup_init along with other controller specific parts.
This patch wraps the current memcg_stock initialization code into a helper
calls it from the controller subsystem initialization code.
Signed-off-by: Michal Hocko <mhocko@xxxxxxx>
Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Tejun Heo <htejun@xxxxxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 20 ++++++++++++--------
1 file changed, 12 insertions(+), 8 deletions(-)
diff -puN mm/memcontrol.c~memcg-move-memcg_stock-initialization-to-mem_cgroup_init mm/memcontrol.c
--- a/mm/memcontrol.c~memcg-move-memcg_stock-initialization-to-mem_cgroup_init
+++ a/mm/memcontrol.c
@@ -2296,6 +2296,17 @@ static void drain_local_stock(struct wor
clear_bit(FLUSHING_CACHED_CHARGE, &stock->flags);
}
+static void __init memcg_stock_init(void)
+{
+ int cpu;
+
+ for_each_possible_cpu(cpu) {
+ struct memcg_stock_pcp *stock =
+ &per_cpu(memcg_stock, cpu);
+ INIT_WORK(&stock->work, drain_local_stock);
+ }
+}
+
/*
* Cache charges(val) which is from res_counter, to local per_cpu area.
* This will be consumed by consume_stock() function, later.
@@ -6091,15 +6102,7 @@ mem_cgroup_css_alloc(struct cgroup *cont
/* root ? */
if (cont->parent == NULL) {
- int cpu;
-
root_mem_cgroup = memcg;
- for_each_possible_cpu(cpu) {
- struct memcg_stock_pcp *stock =
- &per_cpu(memcg_stock, cpu);
- INIT_WORK(&stock->work, drain_local_stock);
- }
-
res_counter_init(&memcg->res, NULL);
res_counter_init(&memcg->memsw, NULL);
res_counter_init(&memcg->kmem, NULL);
@@ -6836,6 +6839,7 @@ static int __init mem_cgroup_init(void)
hotcpu_notifier(memcg_cpu_hotplug_callback, 0);
enable_swap_cgroup();
mem_cgroup_soft_limit_tree_init();
+ memcg_stock_init();
return 0;
}
subsys_initcall(mem_cgroup_init);
_
Patches currently in -mm which might be from mhocko@xxxxxxx are
origin.patch
linux-next.patch
memcg-oom-provide-more-precise-dump-info-while-memcg-oom-happening.patch
mm-memcontrolc-convert-printkkern_foo-to-pr_foo.patch
mm-hugetlbc-convert-to-pr_foo.patch
mm-memcg-only-evict-file-pages-when-we-have-plenty.patch
mm-vmscan-save-work-scanning-almost-empty-lru-lists.patch
mm-vmscan-clarify-how-swappiness-highest-priority-memcg-interact.patch
mm-vmscan-improve-comment-on-low-page-cache-handling.patch
mm-vmscan-clean-up-get_scan_count.patch
mm-vmscan-clean-up-get_scan_count-fix.patch
mm-vmscan-compaction-works-against-zones-not-lruvecs.patch
mm-vmscan-compaction-works-against-zones-not-lruvecs-fix.patch
mm-reduce-rmap-overhead-for-ex-ksm-page-copies-created-on-swap-faults.patch
mm-page_allocc-__setup_per_zone_wmarks-make-min_pages-unsigned-long.patch
mm-vmscanc-__zone_reclaim-replace-max_t-with-max.patch
mmksm-use-new-hashtable-implementation.patch
memcgvmscan-do-not-break-out-targeted-reclaim-without-reclaimed-pages.patch
mmotm-memcgvmscan-do-not-break-out-targeted-reclaim-without-reclaimed-pagespatch-fix.patch
mmotm-memcgvmscan-do-not-break-out-targeted-reclaim-without-reclaimed-pagespatch-fix-fix.patch
memory-hotplug-implement-register_page_bootmem_info_section-of-sparse-vmemmap-fix.patch
memory-hotplug-implement-register_page_bootmem_info_section-of-sparse-vmemmap-fix-fix.patch
memory-hotplug-implement-register_page_bootmem_info_section-of-sparse-vmemmap-fix-fix-fix.patch
memory-hotplug-implement-register_page_bootmem_info_section-of-sparse-vmemmap-fix-fix-fix-fix.patch
memory-hotplug-remove-memmap-of-sparse-vmemmap-fix.patch
acpi-memory-hotplug-parse-srat-before-memblock-is-ready-fix.patch
mm-use-zone-present_pages-instead-of-zone-managed_pages-where-appropriate.patch
mm-set-zone-present_pages-to-number-of-existing-pages-in-the-zone.patch
mm-increase-totalram_pages-when-free-pages-allocated-by-bootmem-allocator.patch
mm-teach-mm-by-current-context-info-to-not-do-i-o-during-memory-allocation.patch
pm-runtime-introduce-pm_runtime_set_memalloc_noio.patch
block-genhdc-apply-pm_runtime_set_memalloc_noio-on-block-devices.patch
net-core-apply-pm_runtime_set_memalloc_noio-on-network-devices.patch
pm-runtime-force-memory-allocation-with-no-i-o-during-runtime-pm-callbcack.patch
usb-forbid-memory-allocation-with-i-o-during-bus-reset.patch
memcg-do-not-create-memsw-files-if-swap-accounting-is-disabled.patch
memcg-clean-up-swap-accounting-initialization-code.patch
memcg-reduce-the-size-of-struct-memcg-244-fold.patch
memcg-reduce-the-size-of-struct-memcg-244-fold-fix.patch
memcg-prevent-changes-to-move_charge_at_immigrate-during-task-attach.patch
memcg-split-part-of-memcg-creation-to-css_online.patch
memcg-fast-hierarchy-aware-child-test.patch
memcg-fast-hierarchy-aware-child-test-fix.patch
memcg-replace-cgroup_lock-with-memcg-specific-memcg_lock.patch
memcg-increment-static-branch-right-after-limit-set.patch
memcg-avoid-dangling-reference-count-in-creation-failure.patch
mm-refactor-inactive_file_is_low-to-use-get_lru_size.patch
memcg-move-mem_cgroup_soft_limit_tree_init-to-mem_cgroup_init.patch
memcg-move-memcg_stock-initialization-to-mem_cgroup_init.patch
memcg-cleanup-mem_cgroup_init-comment.patch
drop_caches-add-some-documentation-and-info-messsge.patch
memcg-debugging-facility-to-access-dangling-memcgs.patch
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