Re: [patch] drop epoll max_user_instances and rely only on max_user_watches

[Davide Libenzi]

On Sun, 1 Feb 2009, Michael Kerrisk wrote:

> Hi Davide,
> 
> On Fri, Jan 30, 2009 at 7:54 AM, Davide Libenzi <davidel@xxxxxxxxxxxxxxx> wrote:
> > On Thu, 29 Jan 2009, Michael Kerrisk wrote:
> >
> >> Since max_user_instances was added in 2.6.28, and this is an ABI
> >> change, I suggest this should go into .29-rc, so that
> >> max_user_instances spends as little time in the wild as possible.
> >
> > Agreed, like I already told Andrew. Sorry Michael for the double change to
> > the man page :/
> 
> So is the right change to the epoll(7) page (see
> http://www.kernel.org/doc/man-pages/online/pages/man7/epoll.7.html )
> to simply remive the text on max_user_instances:
> 
>        /proc/sys/fs/epoll/max_user_instances (since Linux 2.6.28)
>               This  specifies  an  upper  limit on the number of epoll
>               instances that can be created per real user ID.
> 
> Or are other changes also required?

Yes. Plus, max_user_watches, instead of being 1/32 of lowmem, it's 4%. 
Just a detail.



- Davide


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