linux-kernel - Re: [PATCH] mtd_blkdevs: Convert to use the kthread API

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Date:	Thu, 19 Apr 2007 13:13:22 -0600
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Containers <containers@...ts.osdl.org>,
	Oleg Nesterov <oleg@...sign.ru>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mtd_blkdevs: Convert to use the kthread API

Christoph Hellwig <hch@...radead.org> writes:

> On Thu, Apr 19, 2007 at 12:55:28AM -0600, Eric W. Biederman wrote:
>> From: Eric W. Biederman <ebiederm@...ssion.com> - unquoted
>> 
>> thread_run is used intead of kernel_thread, daemonize, and mucking
>> around blocking signals directly.
>
> Please don't do incomplete transitions like that.  We don't really
> want people to use kthread_run, but not the kthread stopping
> mechanisms, because people will simply forget about that bit and
> we'll never get rid of the enormous amount of, erm creativity, in
> handling kernel thread stopping.
>
> This is just the first patch in your series where the thread is mutable,
> but it equally applies to all following patches where this is the case
> aswell.

I don't really care about the creativity.  Although it would
be nice if it wasn't there.  I deliberately left it in so I would be
certain my patches were correct.

I care about killing the maintenance and forward development roadblocks
that are kernel_thread and daemonize.  And the user interface problem
that is handling signals in kernel threads.

Eric



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