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    Subject[PATCH 5.10 572/593] mm/z3fold: use release_z3fold_page_locked() to release locked z3fold page
    Date
    From: Miaohe Lin <linmiaohe@huawei.com>

    [ Upstream commit 28473d91ff7f686d58047ff55f2fa98ab59114a4 ]

    We should use release_z3fold_page_locked() to release z3fold page when
    it's locked, although it looks harmless to use release_z3fold_page() now.

    Link: https://lkml.kernel.org/r/20210619093151.1492174-7-linmiaohe@huawei.com
    Fixes: dcf5aedb24f8 ("z3fold: stricter locking and more careful reclaim")
    Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
    Reviewed-by: Vitaly Wool <vitaly.wool@konsulko.com>
    Cc: Hillf Danton <hdanton@sina.com>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    mm/z3fold.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/mm/z3fold.c b/mm/z3fold.c
    index 636a71c291bf..912ac9a64a15 100644
    --- a/mm/z3fold.c
    +++ b/mm/z3fold.c
    @@ -1387,7 +1387,7 @@ static int z3fold_reclaim_page(struct z3fold_pool *pool, unsigned int retries)
    if (zhdr->foreign_handles ||
    test_and_set_bit(PAGE_CLAIMED, &page->private)) {
    if (kref_put(&zhdr->refcount,
    - release_z3fold_page))
    + release_z3fold_page_locked))
    atomic64_dec(&pool->pages_nr);
    else
    z3fold_page_unlock(zhdr);
    --
    2.30.2


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