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authorJérôme Glisse <jglisse@redhat.com>2018-04-11 02:28:27 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-11 20:28:30 +0300
commitc719547f032d4610c7a20900baacae26d0b1ff3e (patch)
treea5e5a046a4cf9abc4e8b2f7df514c31f0ba942f7
parentc01cbba2aa8b4d05607d373b02fe9e4eda5c0591 (diff)
downloadlinux-c719547f032d4610c7a20900baacae26d0b1ff3e.tar.xz
mm/hmm: hmm_pfns_bad() was accessing wrong struct
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. Link: http://lkml.kernel.org/r/20180323005527.758-6-jglisse@redhat.com Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Cc: Evgeny Baskakov <ebaskakov@nvidia.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: Mark Hairgrove <mhairgrove@nvidia.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/hmm.c3
1 files changed, 2 insertions, 1 deletions
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;