Re: [PATCH] 2.5.46: epoll ep_insert doesn't wake waiters if events

[Davide Libenzi]

On Thu, 7 Nov 2002, Jay Vosburgh wrote:

>
>       The logic in fs/eventpoll.c:ep_insert()  checks to see if events are
> already present when processing an EP_CTL_ADD operation, and, if any are,
> adds them to the list.  It does not wake up any waiters, so, e.g., another
> thread waiting in epoll_wait() will not be awakened for these events.  The
> fix is to have ep_insert() do wakeups, just as ep_poll_callback() does when
> it adds events.

Matthew Kirk already made me notice this yesterday and it's in my code ( 0.37 ).
I was ashame to make another post to Linus :) so I delayed the post.
Linus, I have a few bits. Let me know if you want them now or we will
delay to 2.5.47 ...

- Davide