Re: [PATCH] sysfs: change permissions for /sys from 0755 to 0555

[Vitaly Kuznetsov]

On Sun, 18 Dec 2011 18:32:18 -0800, ebiederm@xxxxxxxxxxxx wrote:
> Vitaly Kuznetsov <vitty@xxxxxxxxxxx> writes:
>
> > There is a misleading difference between /proc and /sys permissions, 
> > /proc is
> > 0555 and /sys is 0755. But
> > as it is impossible to create or unlink something in /sys it would 
> > be nice to
> > have same permissions.
>
> Where does this difference matter?  This doesn't look like something
> that could matter in practice.  If this does matter in practice this
> change deserves a comment and a fuller explanation.

This matters only for programs which 'read' permissions instead of 
'testing' them, but it's a challenge to imagine such program.

> The change itself seems reasonable and probably worth making as 
> general
> cleanup.

Let's consider it cleanup-only. The main idea is: /proc and /sys 
permissions must be the same as they are really the same.
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