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Message-Id: <20180323005527.758-6-jglisse@redhat.com>
Date: Thu, 22 Mar 2018 20:55:17 -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>,
stable@...r.kernel.org, Evgeny Baskakov <ebaskakov@...dia.com>,
Ralph Campbell <rcampbell@...dia.com>,
Mark Hairgrove <mhairgrove@...dia.com>,
John Hubbard <jhubbard@...dia.com>
Subject: [PATCH 05/15] mm/hmm: hmm_pfns_bad() was accessing wrong struct
From: Jérôme Glisse <jglisse@...hat.com>
The private field of mm_walk struct point to an hmm_vma_walk struct and
not to the hmm_range struct desired. Fix to get proper struct pointer.
Signed-off-by: Jérôme Glisse <jglisse@...hat.com>
Cc: stable@...r.kernel.org
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 | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/mm/hmm.c b/mm/hmm.c
index 2d00769e8985..812a66997627 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -336,7 +336,8 @@ static int hmm_pfns_bad(unsigned long addr,
unsigned long end,
struct mm_walk *walk)
{
- struct hmm_range *range = walk->private;
+ struct hmm_vma_walk *hmm_vma_walk = walk->private;
+ struct hmm_range *range = hmm_vma_walk->range;
hmm_pfn_t *pfns = range->pfns;
unsigned long i;
--
2.14.3
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