Re: fs: proc: lockdep spew and questions

Al Viro
2013-12-08T22:10:13Z

On Sun, Dec 08, 2013 at 03:57:53PM -0500, Sasha Levin wrote:
> Hi all,
>
> I've been looking at permissions in procfs, and noticed that
> directories are usually added with execute permission.
>
> As far as I know, there's nothing executable by default inside
> procfs, and on top of that, many of the files there don't deal well
> with being executed so it's easy to cause lockdep spews (one below).
>
> Is there a reason execute bit is set for directories?

Take any introductory textbook on Unix and read the chapter on permissions.
Or say chmod a-x ~, if you prefer education by self-LART...