Messages in this thread Patch in this message | | | From | Ganesh Mahendran <> | Subject | [PATCH] mm/compaction: remove local variable is_lru | Date | Fri, 17 Jun 2016 17:32:51 +0800 |
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local varialbe is_lru was used for tracking non-lru pages(such as balloon pages).
But commit 112ea7b668d3 ("mm: migrate: support non-lru movable page migration") introduced a common framework for non-lru page migration and moved the compound pages check before non-lru movable pages check.
So there is no need to use local variable is_lru.
Signed-off-by: Ganesh Mahendran <opensource.ganesh@gmail.com> --- mm/compaction.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/mm/compaction.c b/mm/compaction.c index fbb7b38..780be7f 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -724,7 +724,6 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn, /* Time to isolate some pages for migration */ for (; low_pfn < end_pfn; low_pfn++) { - bool is_lru; if (skip_on_failure && low_pfn >= next_skip_pfn) { /* @@ -807,8 +806,7 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn, * It's possible to migrate LRU and non-lru movable pages. * Skip any other type of page */ - is_lru = PageLRU(page); - if (!is_lru) { + if (!PageLRU(page)) { /* * __PageMovable can return false positive so we need * to verify it under page_lock. -- 1.9.1
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