From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= <jglisse@redhat.com>
Date: Tue, 10 Apr 2018 16:28:54 -0700
Subject: mm/hmm: move hmm_pfns_clear() closer to where it is used
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Git-commit: 33cd47dcbba068850eb73f00cc41090ba26c1e9b
Patch-mainline: v4.17-rc1
References: HMM fixes, fate#325923, bsc#1104965
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>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
---
mm/hmm.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -340,14 +340,6 @@ static int hmm_pfns_bad(unsigned long ad
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;