From e4b82222712ed15813d35204c91429883d27d1d9 Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@kernel.org>
Date: Wed, 3 May 2017 14:54:27 -0700
Subject: mm: make rmap_one boolean function

rmap_one's return value controls whether rmap_work should contine to
scan other ptes or not so it's target for changing to boolean.  Return
true if the scan should be continued.  Otherwise, return false to stop
the scanning.

This patch makes rmap_one's return value to boolean.

Link: http://lkml.kernel.org/r/1489555493-14659-10-git-send-email-minchan@kernel.org
Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/ksm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'mm/ksm.c')

diff --git a/mm/ksm.c b/mm/ksm.c
index 6edffb9a795b..d9fc0e456128 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1977,7 +1977,7 @@ again:
 			if (rwc->invalid_vma && rwc->invalid_vma(vma, rwc->arg))
 				continue;
 
-			if (SWAP_AGAIN != rwc->rmap_one(page, vma,
+			if (!rwc->rmap_one(page, vma,
 					rmap_item->address, rwc->arg)) {
 				anon_vma_unlock_read(anon_vma);
 				return;
-- 
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