From: Jérôme Glisse <jglisse@redhat.com>
Date: Tue, 10 Apr 2018 23:28:54 +0000 (-0700)
Subject: mm/hmm: move hmm_pfns_clear() closer to where it is used
X-Git-Tag: v4.17-rc1~52^2~119
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=33cd47dcbba068850eb73f00cc41090ba26c1e9b;p=thirdparty%2Fkernel%2Flinux.git

mm/hmm: move hmm_pfns_clear() closer to where it is used

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

Link: http://lkml.kernel.org/r/20180323005527.758-13-jglisse@redhat.com
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Cc: Evgeny Baskakov <ebaskakov@nvidia.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Mark Hairgrove <mhairgrove@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/mm/hmm.c b/mm/hmm.c
index c287fbbbf088a..05b49a5d66746 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -340,14 +340,6 @@ 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 lacking valid pmd or pte(s)
  * @start: range virtual start address (inclusive)
@@ -506,6 +498,14 @@ fault:
 	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;