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mm: remove del_page_from_lru, add page_off_lru

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del_page_from_lru() repeats del_page_from_lru_list(), also working out
which LRU the page was on, clearing the relevant bits.  Decouple those
functions: remove del_page_from_lru() and add page_off_lru().

Signed-off-by: Hugh Dickins <hughd@google.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
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 2012-01-12 17:20:04 -08:00 • committed by Linus Torvalds
parent 4111304dab
commit 1c1c53d43b
2 changed files with 11 additions and 8 deletions
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15
include/linux/mm_inline.h
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@ -54,8 +54,14 @@ static inline enum lru_list page_lru_base_type(struct page *page)
return LRU_INACTIVE_ANON;
}
static inline void
del_page_from_lru(struct zone *zone, struct page *page)
/**
* page_off_lru - which LRU list was page on? clearing its lru flags.
* @page: the page to test
*
* Returns the LRU list a page was on, as an index into the array of LRU
* lists; and clears its Unevictable or Active flags, ready for freeing.
*/
static inline enum lru_list page_off_lru(struct page *page)
{
enum lru_list lru;
@ -69,9 +75,7 @@ del_page_from_lru(struct zone *zone, struct page *page)
lru += LRU_ACTIVE;
}
}
mem_cgroup_lru_del_list(page, lru);
list_del(&page->lru);
__mod_zone_page_state(zone, NR_LRU_BASE + lru, -hpage_nr_pages(page));
return lru;
}
/**
@ -92,7 +96,6 @@ static inline enum lru_list page_lru(struct page *page)
if (PageActive(page))
lru += LRU_ACTIVE;
}
return lru;
}