GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-06-29 18:11:20 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

mm/memcg: apply add/del_page to lruvec

Browse source 
Take lruvec further: pass it instead of zone to add_page_to_lru_list() and
del_page_from_lru_list(); and pagevec_lru_move_fn() pass lruvec down to
its target functions.

This cleanup eliminates a swathe of cruft in memcontrol.c, including
mem_cgroup_lru_add_list(), mem_cgroup_lru_del_list() and
mem_cgroup_lru_move_lists() - which never actually touched the lists.

In their place, mem_cgroup_page_lruvec() to decide the lruvec, previously
a side-effect of add, and mem_cgroup_update_lru_size() to maintain the
lru_size stats.

Whilst these are simplifications in their own right, the goal is to bring
the evaluation of lruvec next to the spin_locking of the lrus, in
preparation for a future patch.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Hugh Dickins 2012-05-29 15:07:09 -07:00 • committed by Linus Torvalds
parent 75b00af77e
commit fa9add641b
8 changed files with 122 additions and 181 deletions
Download patch file Download diff file Expand all files Collapse all files

20
include/linux/mm_inline.h
View file

@ -21,22 +21,22 @@ static inline int page_is_file_cache(struct page *page)
return !PageSwapBacked(page);
}
static __always_inline void
add_page_to_lru_list(struct zone *zone, struct page *page, enum lru_list lru)
static __always_inline void add_page_to_lru_list(struct page *page,
struct lruvec *lruvec, enum lru_list lru)
{
struct lruvec *lruvec;
lruvec = mem_cgroup_lru_add_list(zone, page, lru);
int nr_pages = hpage_nr_pages(page);
mem_cgroup_update_lru_size(lruvec, lru, nr_pages);
list_add(&page->lru, &lruvec->lists[lru]);
__mod_zone_page_state(zone, NR_LRU_BASE + lru, hpage_nr_pages(page));
__mod_zone_page_state(lruvec_zone(lruvec), NR_LRU_BASE + lru, nr_pages);
}
static __always_inline void
del_page_from_lru_list(struct zone *zone, struct page *page, enum lru_list lru)
static __always_inline void del_page_from_lru_list(struct page *page,
struct lruvec *lruvec, enum lru_list lru)
{
mem_cgroup_lru_del_list(page, lru);
int nr_pages = hpage_nr_pages(page);
mem_cgroup_update_lru_size(lruvec, lru, -nr_pages);
list_del(&page->lru);
__mod_zone_page_state(zone, NR_LRU_BASE + lru, -hpage_nr_pages(page));
__mod_zone_page_state(lruvec_zone(lruvec), NR_LRU_BASE + lru, -nr_pages);
}
/**