The quilt patch titled Subject: epoll: ep_autoremove_wake_function should use list_del_init_careful has been removed from the -mm tree. Its filename was epoll-ep_autoremove_wake_function-should-use-list_del_init_careful.patch

This patch was dropped because it was merged into the mm-hotfixes-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------ From: Benjamin Segall bsegall@google.com Subject: epoll: ep_autoremove_wake_function should use list_del_init_careful Date: Tue, 30 May 2023 11:32:28 -0700

autoremove_wake_function uses list_del_init_careful, so should epoll's more aggressive variant. It only doesn't because it was copied from an older wait.c rather than the most recent.

[bsegall@google.com: add comment] Link: https://lkml.kernel.org/r/xm26bki0ulsr.fsf_-_@google.com Link: https://lkml.kernel.org/r/xm26pm6hvfer.fsf@google.com Fixes: a16ceb139610 ("epoll: autoremove wakers even more aggressively") Signed-off-by: Ben Segall bsegall@google.com Cc: Al Viro viro@zeniv.linux.org.uk Cc: Christian Brauner brauner@kernel.org Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org ---

fs/eventpoll.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)

--- a/fs/eventpoll.c~epoll-ep_autoremove_wake_function-should-use-list_del_init_careful +++ a/fs/eventpoll.c @@ -1805,7 +1805,11 @@ static int ep_autoremove_wake_function(s { int ret = default_wake_function(wq_entry, mode, sync, key);

- list_del_init(&wq_entry->entry); + /* + * Pairs with list_empty_careful in ep_poll, and ensures future loop + * iterations see the cause of this wakeup. + */ + list_del_init_careful(&wq_entry->entry); return ret; }

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Patches currently in -mm which might be from bsegall@google.com are