linux-kernel - [PATCH v2] mm/page_alloc.c: __perform_reclaim should return 'unsigned long'

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Date:   Wed, 16 Sep 2020 10:21:38 +0800
From:   <yanfei.xu@...driver.com>
To:     <akpm@...ux-foundation.org>
CC:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v2] mm/page_alloc.c: __perform_reclaim should return 'unsigned long'

From: Yanfei Xu <yanfei.xu@...driver.com>

__perform_reclaim()'s single caller expects it to return 'unsigned long',
hence change its return value and a local variable to 'unsigned long'.

Signed-off-by: Yanfei Xu <yanfei.xu@...driver.com>
Suggested-by: Andrew Morton <akpm@...ux-foundation.org>
---
 mm/page_alloc.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index fab5e97dc9ca..9c985b0c316c 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4241,13 +4241,12 @@ EXPORT_SYMBOL_GPL(fs_reclaim_release);
 #endif
 
 /* Perform direct synchronous page reclaim */
-static int
+static unsigned long
 __perform_reclaim(gfp_t gfp_mask, unsigned int order,
 					const struct alloc_context *ac)
 {
-	int progress;
 	unsigned int noreclaim_flag;
-	unsigned long pflags;
+	unsigned long pflags, progress;
 
 	cond_resched();
 
-- 
2.18.2