mm/z3fold: use release_z3fold_page_locked() to release locked z3fold page

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>

diff --git a/mm/z3fold.c b/mm/z3fold.c
index f34130f..a1bc021 100644 (file)
--- a/mm/z3fold.c
+++ b/mm/z3fold.c
@@ -1370,7 +1370,7 @@ 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);