Re: [RFC][PATCHSET] epoll cleanups

Al Viro
2020-10-04T02:49:07Z

On Sun, Oct 04, 2020 at 03:36:08AM +0100, Al Viro wrote:
> Locking and especilly control flow in fs/eventpoll.c is
> overcomplicated. As the result, the code has been hard to follow
> and easy to fuck up while modifying.
>
> The following series attempts to untangle it; there's more to be done
> there, but this should take care of some of the obfuscated bits. It also
> reduces the memory footprint of that thing.
>
> The series lives in
> git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git #experimental.epoll
> and it survives light local beating. It really needs review and testing.
> I'll post the individual patches in followups (27 commits, trimming about 120
> lines out of fs/eventpoll.c).

PS: the posted series is on top of #work.epoll, which got merged into mainline
on Friday. Forgot to mention that - my apologies.