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>
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 @@
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 @@
{
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);