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| author | Ingo Molnar <mingo@kernel.org> | 2019-06-17 13:12:27 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-06-17 13:12:27 +0300 |
| commit | 23da766ab1dc005860b675bf048226a11a748bf9 (patch) | |
| tree | 3f8dbfc2cf68f5da3faa3a377087b06dd8ad343d /include/linux/memcontrol.h | |
| parent | af75d1a9a9f75bf030c2f35705f1ff6d226f96fe (diff) | |
| parent | 9e0babf2c06c73cda2c0cd37a1653d823adb40ec (diff) | |
| download | linux-23da766ab1dc005860b675bf048226a11a748bf9.tar.xz | |
Merge tag 'v5.2-rc5' into sched/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/memcontrol.h')
| -rw-r--r-- | include/linux/memcontrol.h | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index edf9e8f32d70..1dcb763bb610 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -117,9 +117,12 @@ struct memcg_shrinker_map { struct mem_cgroup_per_node { struct lruvec lruvec; + /* Legacy local VM stats */ + struct lruvec_stat __percpu *lruvec_stat_local; + + /* Subtree VM stats (batched updates) */ struct lruvec_stat __percpu *lruvec_stat_cpu; atomic_long_t lruvec_stat[NR_VM_NODE_STAT_ITEMS]; - atomic_long_t lruvec_stat_local[NR_VM_NODE_STAT_ITEMS]; unsigned long lru_zone_size[MAX_NR_ZONES][NR_LRU_LISTS]; @@ -265,17 +268,18 @@ struct mem_cgroup { atomic_t moving_account; struct task_struct *move_lock_task; - /* memory.stat */ + /* Legacy local VM stats and events */ + struct memcg_vmstats_percpu __percpu *vmstats_local; + + /* Subtree VM stats and events (batched updates) */ struct memcg_vmstats_percpu __percpu *vmstats_percpu; MEMCG_PADDING(_pad2_); atomic_long_t vmstats[MEMCG_NR_STAT]; - atomic_long_t vmstats_local[MEMCG_NR_STAT]; - atomic_long_t vmevents[NR_VM_EVENT_ITEMS]; - atomic_long_t vmevents_local[NR_VM_EVENT_ITEMS]; + /* memory.events */ atomic_long_t memory_events[MEMCG_NR_MEMORY_EVENTS]; unsigned long socket_pressure; @@ -567,7 +571,11 @@ static inline unsigned long memcg_page_state(struct mem_cgroup *memcg, int idx) static inline unsigned long memcg_page_state_local(struct mem_cgroup *memcg, int idx) { - long x = atomic_long_read(&memcg->vmstats_local[idx]); + long x = 0; + int cpu; + + for_each_possible_cpu(cpu) + x += per_cpu(memcg->vmstats_local->stat[idx], cpu); #ifdef CONFIG_SMP if (x < 0) x = 0; @@ -641,13 +649,15 @@ static inline unsigned long lruvec_page_state_local(struct lruvec *lruvec, enum node_stat_item idx) { struct mem_cgroup_per_node *pn; - long x; + long x = 0; + int cpu; if (mem_cgroup_disabled()) return node_page_state(lruvec_pgdat(lruvec), idx); pn = container_of(lruvec, struct mem_cgroup_per_node, lruvec); - x = atomic_long_read(&pn->lruvec_stat_local[idx]); + for_each_possible_cpu(cpu) + x += per_cpu(pn->lruvec_stat_local->count[idx], cpu); #ifdef CONFIG_SMP if (x < 0) x = 0; |