Re: [PATCH v3 2/3] cgroup: revise how we re-populate root directory

[Tejun Heo]

On Mon, Jul 09, 2012 at 10:17:48AM -0700, Tejun Heo wrote:
> On Mon, Jul 02, 2012 at 10:29:27AM -0400, Aristeu Rozanski wrote:
> > From: Li Zefan <lizefan@xxxxxxxxxx>
> > 
> > When remounting cgroupfs with some subsystems added to it and some
> > removed, cgroup will remove all the files in root directory and then
> > re-popluate it.
> > 
> > What I'm doing here is, only remove files which belong to subsystems that
> > are to be unbinded, and only create files for newly-added subsystems.
> > The purpose is to have all other files untouched.
> > 
> > This is a preparation for cgroup xattr support.
> > 
> > v3:
> > - refresh patches after recent refactoring
> 
> Changing subsys_bits via remount is being deprecated.  No need to
> worry about this.

Also, why does this matter?  The xattrs are kept in cgrp anyway.  Why
does keeping dentry/inode around make difference?

Thanks.

-- 
tejun
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