linux-kernel - [PATCH 11/14] mm/hmm: move hmm_pfns_clear() closer to where it is use

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Date:   Fri, 16 Mar 2018 16:35:49 -0400
From:   jglisse@...hat.com
To:     linux-mm@...ck.org
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org,
        Jérôme Glisse <jglisse@...hat.com>,
        Evgeny Baskakov <ebaskakov@...dia.com>,
        Ralph Campbell <rcampbell@...dia.com>,
        Mark Hairgrove <mhairgrove@...dia.com>,
        John Hubbard <jhubbard@...dia.com>
Subject: [PATCH 11/14] mm/hmm: move hmm_pfns_clear() closer to where it is use

From: Jérôme Glisse <jglisse@...hat.com>

Move hmm_pfns_clear() closer to where it is use to make it clear it
is not use by page table walkers.

Signed-off-by: Jérôme Glisse <jglisse@...hat.com>
Cc: Evgeny Baskakov <ebaskakov@...dia.com>
Cc: Ralph Campbell <rcampbell@...dia.com>
Cc: Mark Hairgrove <mhairgrove@...dia.com>
Cc: John Hubbard <jhubbard@...dia.com>
---
 mm/hmm.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/mm/hmm.c b/mm/hmm.c
index 857eec622c98..3a708f500b80 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -297,14 +297,6 @@ static int hmm_pfns_bad(unsigned long addr,
 	return 0;
 }
 
-static void hmm_pfns_clear(uint64_t *pfns,
-			   unsigned long addr,
-			   unsigned long end)
-{
-	for (; addr < end; addr += PAGE_SIZE, pfns++)
-		*pfns = 0;
-}
-
 /*
  * hmm_vma_walk_hole() - handle a range back by no pmd or no pte
  * @start: range virtual start address (inclusive)
@@ -463,6 +455,14 @@ static int hmm_vma_walk_pmd(pmd_t *pmdp,
 	return 0;
 }
 
+static void hmm_pfns_clear(uint64_t *pfns,
+			   unsigned long addr,
+			   unsigned long end)
+{
+	for (; addr < end; addr += PAGE_SIZE, pfns++)
+		*pfns = 0;
+}
+
 static void hmm_pfns_special(struct hmm_range *range)
 {
 	unsigned long addr = range->start, i = 0;
-- 
2.14.3