linux-kernel - Re: [patch] add file position info to proc

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Date:	Wed, 28 Mar 2007 01:05:34 +0200
From:	Miklos Szeredi <miklos@...redi.hu>
To:	pavel@....cz
CC:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [patch] add file position info to proc

> > > > > For each fd the information is provided in the following format:
> > > > > 
> > > > > pos:	1234
> > > > > flags:	0100002
> > > > 
> > > > Octal? Maybe we should use more traditional hex here?
> > 
> > It's octal in <fcntl.h>, so it's easier for a human to read.
> > 
> > > Good point.  The O_foo flags are per-arch, so this field has the potential
> > > to be subtly different on different architectures, which is unpleasing.
> > > 
> > > > Or even list flags by name?
> > > 
> > > urg.  Simple enough to do (lookup table, please).  But is it worth it? 
> > > Perhaps just remove that field?
> > 
> > I wouldn't mind.  But leaving it to an application or for a human to
> > sort out is OK I guess.  There are lots of non-portable numbers in
> > proc.
> 
> Hmm, I do not think we want non-portable numbers in proc. What are
> other examples?

Signal masks in PID/status for example.  I'm sure there are others.

Miklos
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