This is a note to let you know that I've just added the patch titled mm/z3fold: use release_z3fold_page_locked() to release locked z3fold page to the 5.13-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: mm-z3fold-use-release_z3fold_page_locked-to-release-.patch and it can be found in the queue-5.13 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit d81bd644c2a77d3d34ba28185bdfb8cc4d2e4f24 Author: Miaohe Lin <linmiaohe@xxxxxxxxxx> Date: Wed Jun 30 18:50:39 2021 -0700 mm/z3fold: use release_z3fold_page_locked() to release locked z3fold page [ 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@xxxxxxxxxx Fixes: dcf5aedb24f8 ("z3fold: stricter locking and more careful reclaim") Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx> Reviewed-by: Vitaly Wool <vitaly.wool@xxxxxxxxxxxx> Cc: Hillf Danton <hdanton@xxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/mm/z3fold.c b/mm/z3fold.c index 33d8487ef6a8..ed0023dc5a3d 100644 --- a/mm/z3fold.c +++ b/mm/z3fold.c @@ -1383,7 +1383,7 @@ 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);