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@xxxxxxxxx>
---
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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