Re: [patch 1/4] fs, proc: Introduce /proc/<pid>/task/<tid>/childrenentry v8

From: Cyrill Gorcunov
Date: Tue Jan 24 2012 - 04:11:42 EST


On Tue, Jan 24, 2012 at 12:52:03AM -0800, Eric W. Biederman wrote:
> Cyrill Gorcunov <gorcunov@xxxxxxxxx> writes:
>
> > On Tue, Jan 24, 2012 at 04:07:09PM +0900, KAMEZAWA Hiroyuki wrote:
> >> >
> >> > Hmm. But userspace app will get eof, so frankly I don't see
> >> > a problem here. Or maybe I miss something?
> >> >
> >>
> >> Userspace need to take care of whether there may be"\n" or not even
> >> if read() returns EOF.
> >> As an interface, it's BUG to say "\n" will be there if you're lucky!"
> >> (*) I know script language can handle this but we shouldn't assume that.
> >>
> >> How about just remove "\n" at EOF ? I think it's unnecessary.
> >>
> >
> > Sure thing, it's not a problem to remove it completely.
>
> Foolish question. Is there any reason why this is a file instead
> of being the obvious directory full of symlinks?
>

How would these symlinks look like? "../../pid"? There were a conversation
about such things (https://lkml.org/lkml/2011/12/2/142) but I suppose we
were agree on children with pids as consensus.

Cyrill
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