The patch titled
Subject: mm/memory.c: initialise mmu_notifier_range correctly
has been added to the -mm tree. Its filename is
initialise-mmu_notifier_range-correctly.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/initialise-mmu_notifier_range-correctly.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/initialise-mmu_notifier_range-correctly.patch
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------------------------------------------------------
From: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Subject: mm/memory.c: initialise mmu_notifier_range correctly
One of the paths in follow_pte_pmd() initialised the mmu_notifier_range
incorrectly.
Link: http://lkml.kernel.org/r/20190103002126.GM6310@xxxxxxxxxxxxxxxxxxxxxx
Fixes: ac46d4f3c432 ("mm/mmu_notifier: use structure for invalidate_range_start/end calls v2")
Signed-off-by: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Tested-by: Dave Chinner <dchinner@xxxxxxxxxx>
Reviewed-by: Jérôme Glisse <jglisse@xxxxxxxxxx>
Cc: John Hubbard <jhubbard@xxxxxxxxxx>
Cc: Jan Kara <jack@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/mm/memory.c~initialise-mmu_notifier_range-correctly
+++ a/mm/memory.c
@@ -4100,8 +4100,8 @@ static int __follow_pte_pmd(struct mm_st
goto out;
if (range) {
- range->start = address & PAGE_MASK;
- range->end = range->start + PAGE_SIZE;
+ mmu_notifier_range_init(range, mm, address & PAGE_MASK,
+ (address & PAGE_MASK) + PAGE_SIZE);
mmu_notifier_invalidate_range_start(range);
}
ptep = pte_offset_map_lock(mm, pmd, address, ptlp);
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are
initialise-mmu_notifier_range-correctly.patch
fls-change-parameter-to-unsigned-int.patch
