lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

thp: improve order in lru list for split huge page

Browse Source 
Put the tail subpages of an isolated hugepage under splitting in the lru
reclaim head as they supposedly should be isolated too next.

Queues the subpages in physical order in the lru for non isolated
hugepages under splitting.  That might provide some theoretical cache
benefit to the buddy allocator later.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Johannes Weiner <jweiner@redhat.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Shaohua Li
2012-01-12 17:19:18 -08:00
committed by Linus Torvalds
parent f21760b15d
commit 45676885b7
2 changed files with 3 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
mm/swap.c
View File

@@ -681,7 +681,7 @@ void lru_add_page_tail(struct zone* zone,
if (likely(PageLRU(page)))
list_add(&page_tail->lru, page->lru.prev);
else
list_add(&page_tail->lru, &lruvec->lists[lru]);
list_add(&page_tail->lru, lruvec->lists[lru].prev);
__mod_zone_page_state(zone, NR_LRU_BASE + lru,
hpage_nr_pages(page_tail));
} else {