linux-kernel - Re: [PATCH 25/20] sysfs: Only support removing emtpy sysfs directories.

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Date:	Tue, 26 May 2009 23:13:26 +0200
From:	Kay Sievers <kay.sievers@...y.org>
To:	James Bottomley <James.Bottomley@...senpartnership.com>
Cc:	Alan Stern <stern@...land.harvard.edu>,
	SCSI development list <linux-scsi@...r.kernel.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Kernel development list <linux-kernel@...r.kernel.org>,
	Tejun Heo <tj@...nel.org>,
	Cornelia Huck <cornelia.huck@...ibm.com>,
	linux-fsdevel@...r.kernel.org,
	"Eric W. Biederman" <ebiederm@...stanetworks.com>
Subject: Re: [PATCH 25/20] sysfs: Only support removing emtpy sysfs 
	directories.

On Tue, May 26, 2009 at 23:09, James Bottomley
<James.Bottomley@...senpartnership.com> wrote:
> On Tue, 2009-05-26 at 15:29 -0400, Alan Stern wrote:

>> If you don't mind trashing some more ext3 root filesystems :-) you can
>> try this patch.  It's almost certainly not quite the right thing to do
>> and I have probably messed up the target's reference counting, but
>> maybe it's a step in the right direction.

> It's hard to follow the problem without full context, but if I
> understand correctly the problem is you want all the target directories
> removed before you call device_del() on the host and the thing that gets
> in the way is the necessary user context removal of the host.  So a
> simple solution, rather than mucking with the way it works, is to wait
> for the workqueues to complete.  Does this fix it?

Ok, I copied my newly installed system to another disks, to have a
root filesytem to trash again by this bug. :)

Which of your patches should I try?

Thanks,
Kay
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