The patch titled
Subject: mm: memcontrol: add "sock" to cgroup2 memory.stat
has been added to the -mm tree. Its filename is
mm-memcontrol-add-sock-to-cgroup2-memorystat.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-memcontrol-add-sock-to-cgroup2-memorystat.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-memcontrol-add-sock-to-cgroup2-memorystat.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
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------------------------------------------------------
From: Johannes Weiner <hannes@xxxxxxxxxxx>
Subject: mm: memcontrol: add "sock" to cgroup2 memory.stat
Provide statistics on how much of a cgroup's memory footprint is made up
of socket buffers from network connections owned by the group.
Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxx>
Cc: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/memcontrol.h | 5 ++++-
mm/memcontrol.c | 6 ++++++
2 files changed, 10 insertions(+), 1 deletion(-)
diff -puN include/linux/memcontrol.h~mm-memcontrol-add-sock-to-cgroup2-memorystat include/linux/memcontrol.h
--- a/include/linux/memcontrol.h~mm-memcontrol-add-sock-to-cgroup2-memorystat
+++ a/include/linux/memcontrol.h
@@ -50,6 +50,9 @@ enum mem_cgroup_stat_index {
MEM_CGROUP_STAT_WRITEBACK, /* # of pages under writeback */
MEM_CGROUP_STAT_SWAP, /* # of pages, swapped out */
MEM_CGROUP_STAT_NSTATS,
+ /* default hierarchy stats */
+ MEMCG_SOCK,
+ MEMCG_NR_STAT,
};
struct mem_cgroup_reclaim_cookie {
@@ -87,7 +90,7 @@ enum mem_cgroup_events_target {
#ifdef CONFIG_MEMCG
struct mem_cgroup_stat_cpu {
- long count[MEM_CGROUP_STAT_NSTATS];
+ long count[MEMCG_NR_STAT];
unsigned long events[MEMCG_NR_EVENTS];
unsigned long nr_page_events;
unsigned long targets[MEM_CGROUP_NTARGETS];
diff -puN mm/memcontrol.c~mm-memcontrol-add-sock-to-cgroup2-memorystat mm/memcontrol.c
--- a/mm/memcontrol.c~mm-memcontrol-add-sock-to-cgroup2-memorystat
+++ a/mm/memcontrol.c
@@ -5118,6 +5118,8 @@ static int memory_stat_show(struct seq_f
tree_stat(memcg, MEM_CGROUP_STAT_RSS) * PAGE_SIZE);
seq_printf(m, "file %lu\n",
tree_stat(memcg, MEM_CGROUP_STAT_CACHE) * PAGE_SIZE);
+ seq_printf(m, "sock %lu\n",
+ tree_stat(memcg, MEMCG_SOCK) * PAGE_SIZE);
/* Per-consumer breakdowns */
@@ -5619,6 +5621,8 @@ bool mem_cgroup_charge_skmem(struct mem_
if (in_softirq())
gfp_mask = GFP_NOWAIT;
+ this_cpu_add(memcg->stat->count[MEMCG_SOCK], nr_pages);
+
if (try_charge(memcg, gfp_mask, nr_pages) == 0)
return true;
@@ -5638,6 +5642,8 @@ void mem_cgroup_uncharge_skmem(struct me
return;
}
+ this_cpu_sub(memcg->stat->count[MEMCG_SOCK], nr_pages);
+
page_counter_uncharge(&memcg->memory, nr_pages);
css_put_many(&memcg->css, nr_pages);
}
_
Patches currently in -mm which might be from hannes@xxxxxxxxxxx are
mm-page_alloc-generalize-the-dirty-balance-reserve.patch
proc-meminfo-estimate-available-memory-more-conservatively.patch
mm-memcontrol-export-root_mem_cgroup.patch
net-tcp_memcontrol-properly-detect-ancestor-socket-pressure.patch
net-tcp_memcontrol-remove-bogus-hierarchy-pressure-propagation.patch
net-tcp_memcontrol-protect-all-tcp_memcontrol-calls-by-jump-label.patch
net-tcp_memcontrol-remove-dead-per-memcg-count-of-allocated-sockets.patch
net-tcp_memcontrol-simplify-the-per-memcg-limit-access.patch
net-tcp_memcontrol-sanitize-tcp-memory-accounting-callbacks.patch
net-tcp_memcontrol-simplify-linkage-between-socket-and-page-counter.patch
net-tcp_memcontrol-simplify-linkage-between-socket-and-page-counter-fix.patch
mm-memcontrol-generalize-the-socket-accounting-jump-label.patch
mm-memcontrol-do-not-account-memoryswap-on-unified-hierarchy.patch
mm-memcontrol-move-socket-code-for-unified-hierarchy-accounting.patch
mm-memcontrol-account-socket-memory-in-unified-hierarchy-memory-controller.patch
mm-memcontrol-hook-up-vmpressure-to-socket-pressure.patch
mm-memcontrol-switch-to-the-updated-jump-label-api.patch
mm-oom_killc-dont-skip-pf_exiting-tasks-when-searching-for-a-victim.patch
mm-memcontrol-drop-unused-css-argument-in-memcg_init_kmem.patch
mm-memcontrol-remove-double-kmem-page_counter-init.patch
mm-memcontrol-give-the-kmem-states-more-descriptive-names.patch
mm-memcontrol-group-kmem-init-and-exit-functions-together.patch
mm-memcontrol-separate-kmem-code-from-legacy-tcp-accounting-code.patch
mm-memcontrol-move-kmem-accounting-code-to-config_memcg.patch
mm-memcontrol-move-kmem-accounting-code-to-config_memcg-v2.patch
mm-memcontrol-move-kmem-accounting-code-to-config_memcg-fix.patch
mm-memcontrol-account-kmem-consumers-in-cgroup2-memory-controller.patch
mm-memcontrol-introduce-config_memcg_legacy_kmem.patch
mm-memcontrol-reign-in-the-config-space-madness.patch
mm-memcontrol-flatten-struct-cg_proto.patch
mm-memcontrol-clean-up-alloc-online-offline-free-functions.patch
mm-memcontrol-clean-up-alloc-online-offline-free-functions-fix.patch
mm-memcontrol-do-not-uncharge-old-page-in-page-cache-replacement.patch
mm-memcontrol-basic-memory-statistics-in-cgroup2-memory-controller.patch
mm-memcontrol-add-sock-to-cgroup2-memorystat.patch
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