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    Subject[PATCH v11 62/69] mm/pagewalk: use vma_find() instead of vma linked list
    Date
    From: "Matthew Wilcox (Oracle)" <willy@infradead.org>

    walk_page_range() no longer uses the one vma linked list reference.

    Link: https://lkml.kernel.org/r/20220504011345.662299-47-Liam.Howlett@oracle.com
    Link: https://lkml.kernel.org/r/20220621204632.3370049-63-Liam.Howlett@oracle.com
    Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
    Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
    Acked-by: Vlastimil Babka <vbabka@suse.cz>
    Cc: Catalin Marinas <catalin.marinas@arm.com>
    Cc: David Howells <dhowells@redhat.com>
    Cc: SeongJae Park <sj@kernel.org>
    Cc: Will Deacon <will@kernel.org>
    Cc: Davidlohr Bueso <dave@stgolabs.net>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    ---
    mm/pagewalk.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/mm/pagewalk.c b/mm/pagewalk.c
    index 9b3db11a4d1d..53e5c145fcce 100644
    --- a/mm/pagewalk.c
    +++ b/mm/pagewalk.c
    @@ -456,7 +456,7 @@ int walk_page_range(struct mm_struct *mm, unsigned long start,
    } else { /* inside vma */
    walk.vma = vma;
    next = min(end, vma->vm_end);
    - vma = vma->vm_next;
    + vma = find_vma(mm, vma->vm_end);

    err = walk_page_test(start, next, &walk);
    if (err > 0) {
    --
    2.35.1
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