linux-kernel - [PATCH 03/10] mm/page_alloc: use unsigned int for "order" in should_compact

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Date:   Fri, 26 Jul 2019 02:42:46 +0800
From:   Pengfei Li <lpf.vector@...il.com>
To:     akpm@...ux-foundation.org
Cc:     mgorman@...hsingularity.net, mhocko@...e.com, vbabka@...e.cz,
        cai@....pw, aryabinin@...tuozzo.com, osalvador@...e.de,
        rostedt@...dmis.org, mingo@...hat.com,
        pavel.tatashin@...rosoft.com, rppt@...ux.ibm.com,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        Pengfei Li <lpf.vector@...il.com>
Subject: [PATCH 03/10] mm/page_alloc: use unsigned int for "order" in should_compact_retry()

Because "order" will never be negative in should_compact_retry(),
so just make "order" unsigned int.

Signed-off-by: Pengfei Li <lpf.vector@...il.com>
---
 mm/page_alloc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 1432cbcd87cd..7d47af09461f 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -839,7 +839,7 @@ static inline struct capture_control *task_capc(struct zone *zone)
 
 static inline bool
 compaction_capture(struct capture_control *capc, struct page *page,
-		   int order, int migratetype)
+		   unsigned int order, int migratetype)
 {
 	if (!capc || order != capc->cc->order)
 		return false;
@@ -870,7 +870,7 @@ static inline struct capture_control *task_capc(struct zone *zone)
 
 static inline bool
 compaction_capture(struct capture_control *capc, struct page *page,
-		   int order, int migratetype)
+		   unsigned int order, int migratetype)
 {
 	return false;
 }
-- 
2.21.0