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mm: move nr_deactivate accounting to shrink_active_list()

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We know which LRU is not active.

[chris@chrisdown.name: fix build on !CONFIG_MEMCG]
  Link: http://lkml.kernel.org/r/20190322150513.GA22021@chrisdown.name
Link: http://lkml.kernel.org/r/155290128498.31489.18250485448913338607.stgit@localhost.localdomain
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: Chris Down <chris@chrisdown.name>
Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Kirill Tkhai 2019-05-13 17:16:54 -07:00 committed by Linus Torvalds
parent 886cf1901d
commit 9851ac1359
2 changed files with 10 additions and 6 deletions
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6
include/linux/memcontrol.h
View File

@ -1117,6 +1117,12 @@ static inline void count_memcg_events(struct mem_cgroup *memcg,
{
}
static inline void __count_memcg_events(struct mem_cgroup *memcg,
enum vm_event_item idx,
unsigned long count)
{
}
static inline void count_memcg_page_event(struct page *page,
int idx)
{

10
mm/vmscan.c
View File

@ -2040,12 +2040,6 @@ static unsigned move_active_pages_to_lru(struct lruvec *lruvec,
}
}
if (!is_active_lru(lru)) {
__count_vm_events(PGDEACTIVATE, nr_moved);
count_memcg_events(lruvec_memcg(lruvec), PGDEACTIVATE,
nr_moved);
}
return nr_moved;
}
@ -2137,6 +2131,10 @@ static void shrink_active_list(unsigned long nr_to_scan,
nr_activate = move_active_pages_to_lru(lruvec, &l_active, &l_hold, lru);
nr_deactivate = move_active_pages_to_lru(lruvec, &l_inactive, &l_hold, lru - LRU_ACTIVE);
__count_vm_events(PGDEACTIVATE, nr_deactivate);
__count_memcg_events(lruvec_memcg(lruvec), PGDEACTIVATE, nr_deactivate);
__mod_node_page_state(pgdat, NR_ISOLATED_ANON + file, -nr_taken);
spin_unlock_irq(&pgdat->lru_lock);