[PATCH v3 9/9] mm/page_isolation: clean up confused code
From: <hidden>
Date: 2016-06-17 07:58:44
Also in:
lkml
Subsystem:
memory management, memory management - page allocator, the rest · Maintainers:
Andrew Morton, Vlastimil Babka, Linus Torvalds
From: Joonsoo Kim <redacted> When there is an isolated_page, post_alloc_hook() is called with page but __free_pages() is called with isolated_page. Since they are the same so no problem but it's very confusing. To reduce it, this patch changes isolated_page to boolean type and uses page variable consistently. Signed-off-by: Joonsoo Kim <redacted> --- 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 4639163..064b7fb 100644
--- a/mm/page_isolation.c
+++ b/mm/page_isolation.c@@ -81,7 +81,7 @@ static void unset_migratetype_isolate(struct page *page, unsigned migratetype) { struct zone *zone; unsigned long flags, nr_pages; - struct page *isolated_page = NULL; + bool isolated_page = false; unsigned int order; unsigned long page_idx, buddy_idx; struct page *buddy;
@@ -109,7 +109,7 @@ static void unset_migratetype_isolate(struct page *page, unsigned migratetype) if (pfn_valid_within(page_to_pfn(buddy)) && !is_migrate_isolate_page(buddy)) { __isolate_free_page(page, order); - isolated_page = page; + isolated_page = true; } } }
@@ -129,7 +129,7 @@ out: spin_unlock_irqrestore(&zone->lock, flags); if (isolated_page) { post_alloc_hook(page, order, __GFP_MOVABLE); - __free_pages(isolated_page, order); + __free_pages(page, order); } }
--
1.9.1
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