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Re: Hide rootfs filesystem in df

From: Jim Meyering
Subject: Re: Hide rootfs filesystem in df
Date: Wed, 26 Sep 2012 16:24:00 +0200

Voelker, Bernhard wrote:

> Robert Milasan wrote:
>> That has been fixed, at least in 12.1 and 12.2 (even if it's not fixed
>> there is not rootfs entry in /proc/self/mountinfo):
> I know.
> The problem is that mount from util-linux has it's own
> wrapper for the mount entries which is using mountinfo
> while coreutils' df is just calling get_fs_usage() from
> gnulib which in turn is reading /etc/mtab - which is
> a symlink to /proc/self/mounts in this case.
> And that file has both entries.
> So the question is:
> * is it a kernel thing to not expose rootfs to
>   /proc/self/mounts?
> * should gnulib's get_fs_usage() switch to reading
>   mountinfo?
> * is it a gnulib thing to not filter the rootfs
>   entry?
> * is it up to coreutils to filter out the rootfs
>   entry?
> * should coreutils' df switch to reading mountinfo?
> There are several possibilities here.
> Jim?

Hi Bernie,
I'm away from home for a day or so more,
so have less time than usual.  I'll be back on Friday.

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