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    Subject[PATCH v3 40/41] mm/mempolicy.c: convert put_page() to put_user_page*()
    Date
    From: John Hubbard <jhubbard@nvidia.com>

    For pages that were retained via get_user_pages*(), release those pages
    via the new put_user_page*() routines, instead of via put_page() or
    release_pages().

    This is part a tree-wide conversion, as described in commit fc1d8e7cca2d
    ("mm: introduce put_user_page*(), placeholder versions").

    Cc: Andrea Arcangeli <aarcange@redhat.com>
    Cc: Anshuman Khandual <anshuman.khandual@arm.com>
    Cc: David Rientjes <rientjes@google.com>
    Cc: Dominik Brodowski <linux@dominikbrodowski.net>
    Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
    Cc: Michal Hocko <mhocko@suse.com>
    Cc: Vlastimil Babka <vbabka@suse.cz>
    Cc: zhong jiang <zhongjiang@huawei.com>
    Signed-off-by: John Hubbard <jhubbard@nvidia.com>
    ---
    mm/mempolicy.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/mm/mempolicy.c b/mm/mempolicy.c
    index f48693f75b37..76a8e935e2e6 100644
    --- a/mm/mempolicy.c
    +++ b/mm/mempolicy.c
    @@ -832,7 +832,7 @@ static int lookup_node(struct mm_struct *mm, unsigned long addr)
    err = get_user_pages_locked(addr & PAGE_MASK, 1, 0, &p, &locked);
    if (err >= 0) {
    err = page_to_nid(p);
    - put_page(p);
    + put_user_page(p);
    }
    if (locked)
    up_read(&mm->mmap_sem);
    --
    2.22.0
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