Subject: + mm-hugetlbfs-move-the-put-get_page-slab-and-hugetlbfs-optimization-in-a-faster-path-fix.patch added to -mm tree
To: aarcange@xxxxxxxxxx,andi@xxxxxxxxxxxxxx,bhutchings@xxxxxxxxxxxxxx,cl@xxxxxxxxx,gregkh@xxxxxxxxxxxxxxxxxxx,jweiner@xxxxxxxxxx,khalid.aziz@xxxxxxxxxx,mgorman@xxxxxxx,minchan@xxxxxxxxxx,pshelar@xxxxxxxxxx,riel@xxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Wed, 20 Nov 2013 14:48:43 -0800
The patch titled
Subject: mm: hugetlbfs: use __compound_tail_refcounted in __get_page_tail too
has been added to the -mm tree. Its filename is
mm-hugetlbfs-move-the-put-get_page-slab-and-hugetlbfs-optimization-in-a-faster-path-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-hugetlbfs-move-the-put-get_page-slab-and-hugetlbfs-optimization-in-a-faster-path-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-hugetlbfs-move-the-put-get_page-slab-and-hugetlbfs-optimization-in-a-faster-path-fix.patch
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------------------------------------------------------
From: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Subject: mm: hugetlbfs: use __compound_tail_refcounted in __get_page_tail too
Also remove hugetlb.h which isn't needed anymore as PageHeadHuge is
handled in mm.h.
Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Cc: Khalid Aziz <khalid.aziz@xxxxxxxxxx>
Cc: Pravin Shelar <pshelar@xxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Ben Hutchings <bhutchings@xxxxxxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Johannes Weiner <jweiner@xxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Andi Kleen <andi@xxxxxxxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/swap.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff -puN mm/swap.c~mm-hugetlbfs-move-the-put-get_page-slab-and-hugetlbfs-optimization-in-a-faster-path-fix mm/swap.c
--- a/mm/swap.c~mm-hugetlbfs-move-the-put-get_page-slab-and-hugetlbfs-optimization-in-a-faster-path-fix
+++ a/mm/swap.c
@@ -31,7 +31,6 @@
#include <linux/memcontrol.h>
#include <linux/gfp.h>
#include <linux/uio.h>
-#include <linux/hugetlb.h>
#include "internal.h"
@@ -240,7 +239,7 @@ bool __get_page_tail(struct page *page)
struct page *page_head = compound_trans_head(page);
/* Ref to put_compound_page() comment. */
- if (PageSlab(page_head) || PageHeadHuge(page_head)) {
+ if (!__compound_tail_refcounted(page_head)) {
smp_rmb();
if (likely(PageTail(page))) {
/*
_
Patches currently in -mm which might be from aarcange@xxxxxxxxxx are
origin.patch
mm-thp-give-transparent-hugepage-code-a-separate-copy_page.patch
mm-thp-give-transparent-hugepage-code-a-separate-copy_page-fix.patch
mm-hugetlbfs-fix-hugetlbfs-optimization.patch
mm-hugetlb-use-get_page_foll-in-follow_hugetlb_page.patch
mm-hugetlbfs-move-the-put-get_page-slab-and-hugetlbfs-optimization-in-a-faster-path.patch
mm-hugetlbfs-move-the-put-get_page-slab-and-hugetlbfs-optimization-in-a-faster-path-fix.patch
mm-thp-optimize-compound_trans_huge.patch
mm-tail-page-refcounting-optimization-for-slab-and-hugetlbfs.patch
mm-hugetlbc-simplify-pageheadhuge-and-pagehuge.patch
mm-swapc-reorganize-put_compound_page.patch
mm-hugetlbc-defer-pageheadhuge-symbol-export.patch
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