Re: [PATCH 2/2] fs/epoll: restore waking from ep_done_scan()

From: Andrew Morton
Date: Tue Apr 06 2021 - 01:09:16 EST


On Mon, 5 Apr 2021 20:22:26 -0700 Davidlohr Bueso <dave@xxxxxxxxxxxx> wrote:

> On Mon, 05 Apr 2021, Andrew Morton wrote:
>
> >Tricky. 339ddb53d373 was merged in December 2019. So do we backport
> >this fix? Could any userspace code be depending upon the
> >post-339ddb53d373 behavior?
>
> As with previous trouble caused by this commit, I vote for restoring the behavior
> backporting the fix, basically the equivalent of adding (which was my intention):
>
> Fixes: 339ddb53d373 ("fs/epoll: remove unnecessary wakeups of nested epoll")

OK, I added the Fixes: line and the cc:stable line.