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Date: Fri, 3 Mar 2017 19:12:49 +0800
From: Xishi Qiu <qiuxishi@...wei.com>
To: Andrew Morton <akpm@...ux-foundation.org>,
Vlastimil Babka <vbabka@...e.cz>,
Mel Gorman <mgorman@...hsingularity.net>,
Minchan Kim <minchan@...nel.org>,
Michal Hocko <mhocko@...nel.org>,
Joonsoo Kim <iamjoonsoo.kim@....com>
CC: Yisheng Xie <xieyisheng1@...wei.com>,
Linux MM <linux-mm@...ck.org>,
LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 2/2] mm: use is_migrate_isolate_page() to simplify the code
Use is_migrate_isolate_page() to simplify the code, no functional changes.
Signed-off-by: Xishi Qiu <qiuxishi@...wei.com>
---
mm/page_isolation.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/mm/page_isolation.c b/mm/page_isolation.c
index f4e17a5..7927bbb 100644
--- a/mm/page_isolation.c
+++ b/mm/page_isolation.c
@@ -88,7 +88,7 @@ static void unset_migratetype_isolate(struct page *page, unsigned migratetype)
zone = page_zone(page);
spin_lock_irqsave(&zone->lock, flags);
- if (get_pageblock_migratetype(page) != MIGRATE_ISOLATE)
+ if (!is_migrate_isolate_page(page))
goto out;
/*
@@ -205,7 +205,7 @@ int undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,
pfn < end_pfn;
pfn += pageblock_nr_pages) {
page = __first_valid_page(pfn, pageblock_nr_pages);
- if (!page || get_pageblock_migratetype(page) != MIGRATE_ISOLATE)
+ if (!page || !is_migrate_isolate_page(page))
continue;
unset_migratetype_isolate(page, migratetype);
}
@@ -262,7 +262,7 @@ int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn,
*/
for (pfn = start_pfn; pfn < end_pfn; pfn += pageblock_nr_pages) {
page = __first_valid_page(pfn, pageblock_nr_pages);
- if (page && get_pageblock_migratetype(page) != MIGRATE_ISOLATE)
+ if (page && !is_migrate_isolate_page(page))
break;
}
page = __first_valid_page(start_pfn, end_pfn - start_pfn);
--
1.8.3.1
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