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mm: memcontrol: use the node-native slab memory counters 

Now that the slab counters are moved from the zone to the node level we
can drop the private memcg node stats and use the official ones.

Link: http://lkml.kernel.org/r/20170530181724.27197-4-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Josef Bacik <josef@toxicpanda.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Johannes Weiner 2017-07-06 15:40:46 -07:00 committed by Linus Torvalds
parent 385386cff4
commit 320492961c
3 changed files with 6 additions and 8 deletions
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2
include/linux/memcontrol.h
View File

@ -44,8 +44,6 @@ enum memcg_stat_item {
MEMCG_SOCK,
/* XXX: why are these zone and not node counters? */
MEMCG_KERNEL_STACK_KB,
MEMCG_SLAB_RECLAIMABLE,
MEMCG_SLAB_UNRECLAIMABLE,
MEMCG_NR_STAT,
};

8
mm/memcontrol.c
View File

@ -5198,8 +5198,8 @@ static int memory_stat_show(struct seq_file *m, void *v)
seq_printf(m, "kernel_stack %llu\n",
(u64)stat[MEMCG_KERNEL_STACK_KB] * 1024);
seq_printf(m, "slab %llu\n",
(u64)(stat[MEMCG_SLAB_RECLAIMABLE] +
stat[MEMCG_SLAB_UNRECLAIMABLE]) * PAGE_SIZE);
(u64)(stat[NR_SLAB_RECLAIMABLE] +
stat[NR_SLAB_UNRECLAIMABLE]) * PAGE_SIZE);
seq_printf(m, "sock %llu\n",
(u64)stat[MEMCG_SOCK] * PAGE_SIZE);
@ -5223,9 +5223,9 @@ static int memory_stat_show(struct seq_file *m, void *v)
}
seq_printf(m, "slab_reclaimable %llu\n",
(u64)stat[MEMCG_SLAB_RECLAIMABLE] * PAGE_SIZE);
(u64)stat[NR_SLAB_RECLAIMABLE] * PAGE_SIZE);
seq_printf(m, "slab_unreclaimable %llu\n",
(u64)stat[MEMCG_SLAB_UNRECLAIMABLE] * PAGE_SIZE);
(u64)stat[NR_SLAB_UNRECLAIMABLE] * PAGE_SIZE);
/* Accumulated memory events */

4
mm/slab.h
View File

@ -287,7 +287,7 @@ static __always_inline int memcg_charge_slab(struct page *page,
memcg_kmem_update_page_stat(page,
(s->flags & SLAB_RECLAIM_ACCOUNT) ?
MEMCG_SLAB_RECLAIMABLE : MEMCG_SLAB_UNRECLAIMABLE,
NR_SLAB_RECLAIMABLE : NR_SLAB_UNRECLAIMABLE,
1 << order);
return 0;
}
@ -300,7 +300,7 @@ static __always_inline void memcg_uncharge_slab(struct page *page, int order,
memcg_kmem_update_page_stat(page,
(s->flags & SLAB_RECLAIM_ACCOUNT) ?
MEMCG_SLAB_RECLAIMABLE : MEMCG_SLAB_UNRECLAIMABLE,
NR_SLAB_RECLAIMABLE : NR_SLAB_UNRECLAIMABLE,
-(1 << order));
memcg_kmem_uncharge(page, order);
}