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authorDaniel Kiper <dkiper@net-space.pl>2011-07-25 17:12:13 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-25 20:57:09 -0700
commit1bb36fbd4d58ec3fab4dab5ed39a2af492c263ea (patch)
treeb381b2a4a0d212053516073a8bd21e7b4c59cfad /mm/page_cgroup.c
parent00a66d2974485d7d95d61d5772142b2a2231ed2a (diff)
downloadop-kernel-dev-1bb36fbd4d58ec3fab4dab5ed39a2af492c263ea.zip
op-kernel-dev-1bb36fbd4d58ec3fab4dab5ed39a2af492c263ea.tar.gz
mm/page_cgroup.c: simplify code by using SECTION_ALIGN_UP() and SECTION_ALIGN_DOWN() macros
Commit a539f3533b78e3 ("mm: add SECTION_ALIGN_UP() and SECTION_ALIGN_DOWN() macro") introduced the SECTION_ALIGN_UP() and SECTION_ALIGN_DOWN() macros. Use those macros to increase code readability. Signed-off-by: Daniel Kiper <dkiper@net-space.pl> Acked-by: David Rientjes <rientjes@google.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_cgroup.c')
-rw-r--r--mm/page_cgroup.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/mm/page_cgroup.c b/mm/page_cgroup.c
index 9cb1c44..39d216d 100644
--- a/mm/page_cgroup.c
+++ b/mm/page_cgroup.c
@@ -225,8 +225,8 @@ int __meminit online_page_cgroup(unsigned long start_pfn,
unsigned long start, end, pfn;
int fail = 0;
- start = start_pfn & ~(PAGES_PER_SECTION - 1);
- end = ALIGN(start_pfn + nr_pages, PAGES_PER_SECTION);
+ start = SECTION_ALIGN_DOWN(start_pfn);
+ end = SECTION_ALIGN_UP(start_pfn + nr_pages);
if (nid == -1) {
/*
@@ -258,8 +258,8 @@ int __meminit offline_page_cgroup(unsigned long start_pfn,
{
unsigned long start, end, pfn;
- start = start_pfn & ~(PAGES_PER_SECTION - 1);
- end = ALIGN(start_pfn + nr_pages, PAGES_PER_SECTION);
+ start = SECTION_ALIGN_DOWN(start_pfn);
+ end = SECTION_ALIGN_UP(start_pfn + nr_pages);
for (pfn = start; pfn < end; pfn += PAGES_PER_SECTION)
__free_page_cgroup(pfn);
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