Subject: + mm-hugetlbc-simplify-pageheadhuge-and-pagehuge.patch added to -mm tree
To: akpm@xxxxxxxxxxxxxxxxxxxx,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: Tue, 19 Nov 2013 15:14:38 -0800
The patch titled
Subject: mm/hugetlb.c: simplify PageHeadHuge() and PageHuge()
has been added to the -mm tree. Its filename is
mm-hugetlbc-simplify-pageheadhuge-and-pagehuge.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-hugetlbc-simplify-pageheadhuge-and-pagehuge.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-hugetlbc-simplify-pageheadhuge-and-pagehuge.patch
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: mm/hugetlb.c: simplify PageHeadHuge() and PageHuge()
Cc: Andi Kleen <andi@xxxxxxxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Cc: Ben Hutchings <bhutchings@xxxxxxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Johannes Weiner <jweiner@xxxxxxxxxx>
Cc: Khalid Aziz <khalid.aziz@xxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Pravin Shelar <pshelar@xxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/hugetlb.c | 12 ++----------
1 file changed, 2 insertions(+), 10 deletions(-)
diff -puN mm/hugetlb.c~mm-hugetlbc-simplify-pageheadhuge-and-pagehuge mm/hugetlb.c
--- a/mm/hugetlb.c~mm-hugetlbc-simplify-pageheadhuge-and-pagehuge
+++ a/mm/hugetlb.c
@@ -690,15 +690,11 @@ static void prep_compound_gigantic_page(
*/
int PageHuge(struct page *page)
{
- compound_page_dtor *dtor;
-
if (!PageCompound(page))
return 0;
page = compound_head(page);
- dtor = get_compound_page_dtor(page);
-
- return dtor == free_huge_page;
+ return get_compound_page_dtor(page) == free_huge_page;
}
EXPORT_SYMBOL_GPL(PageHuge);
@@ -708,14 +704,10 @@ EXPORT_SYMBOL_GPL(PageHuge);
*/
int PageHeadHuge(struct page *page_head)
{
- compound_page_dtor *dtor;
-
if (!PageHead(page_head))
return 0;
- dtor = get_compound_page_dtor(page_head);
-
- return dtor == free_huge_page;
+ return get_compound_page_dtor(page_head) == free_huge_page;
}
EXPORT_SYMBOL_GPL(PageHeadHuge);
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
origin.patch
arch-alpha-kernel-systblss-remove-debug-check.patch
i-need-old-gcc.patch
mm-thp-give-transparent-hugepage-code-a-separate-copy_page-fix.patch
mm-swapc-reorganize-put_compound_page.patch
mm-hugetlbc-simplify-pageheadhuge-and-pagehuge.patch
kernel-time-tick-commonc-document-tick_do_timer_cpu.patch
drivers-block-ccissc-cciss_init_one-use-proper-errnos.patch
block-blk-mq-cpuc-use-hotcpu_notifier.patch
posix_acl-uninlining.patch
mm.patch
kernel-paramsc-improve-standard-definitions-checkpatch-fixes.patch
kmod-run-usermodehelpers-only-on-cpus-allowed-for-kthreadd-v2-fix.patch
kmod-run-usermodehelpers-only-on-cpus-allowed-for-kthreadd-v2-checkpatch-fixes.patch
linux-next.patch
linux-next-git-rejects.patch
debugging-keep-track-of-page-owners.patch
journal_add_journal_head-debug.patch
kernel-forkc-export-kernel_thread-to-modules.patch
mutex-subsystem-synchro-test-module.patch
slab-leaks3-default-y.patch
put_bh-debug.patch
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