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Date:   Thu,  2 Mar 2017 15:39:15 +0900
From:   Minchan Kim <minchan@...nel.org>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     kernel-team@....com, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...e.com>,
        Minchan Kim <minchan@...nel.org>,
        "Kirill A . Shutemov" <kirill@...temov.name>
Subject: [RFC 01/11] mm: use SWAP_SUCCESS instead of 0

SWAP_SUCCESS defined value 0 can be changed always so don't rely on
it. Instead, use explict macro.

Cc: Kirill A. Shutemov <kirill@...temov.name>
Signed-off-by: Minchan Kim <minchan@...nel.org>
---
 mm/huge_memory.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 092cc5c..fe2ccd4 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2114,7 +2114,7 @@ static void freeze_page(struct page *page)
 		ttu_flags |= TTU_MIGRATION;
 
 	ret = try_to_unmap(page, ttu_flags);
-	VM_BUG_ON_PAGE(ret, page);
+	VM_BUG_ON_PAGE(ret != SWAP_SUCCESS, page);
 }
 
 static void unfreeze_page(struct page *page)
-- 
2.7.4

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