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From: Andrew Morton <akpm@osdl.org>
To: Ingo Molnar <mingo@redhat.com>
Cc: James.Bottomley@SteelEye.com, linux-kernel@vger.kernel.org,
	linux-scsi@vger.kernel.org
Subject: Re: [PATCH] remove name length check in a workqueue
Date: Wed, 10 Aug 2005 10:05:23 -0700	[thread overview]
Message-ID: <20050810100523.0075d4e8.akpm@osdl.org> (raw)
In-Reply-To: <Pine.LNX.4.58.0508101044110.31617@devserv.devel.redhat.com>

Ingo Molnar <mingo@redhat.com> wrote:
>
> 
> yeah ... cannot remember why i have done it originally :-|
> 

Might it be to do with sizeof(task_struct.comm)?

> 
> On Wed, 10 Aug 2005, James Bottomley wrote:
> 
> > Ingo,
> > 
> > This has been in the workqueue code in day one, for no real reason that
> > I can see.  We just tripped over it in SCSI because the fibre channel
> > transport class creates one workqueue per host with the name scsi_wq_%d
> > which trips this after we get to 100.  Unfortunately we just came across
> > someone with > 100 host adapters ...
> > 
> > I think the solution is just to get rid of the artificial limit.
> > 
> > James
> > 
> > diff --git a/kernel/workqueue.c b/kernel/workqueue.c
> > --- a/kernel/workqueue.c
> > +++ b/kernel/workqueue.c
> > @@ -308,8 +308,6 @@ struct workqueue_struct *__create_workqu
> >  	struct workqueue_struct *wq;
> >  	struct task_struct *p;
> >  
> > -	BUG_ON(strlen(name) > 10);
> > -
> >  	wq = kmalloc(sizeof(*wq), GFP_KERNEL);
> >  	if (!wq)
> >  		return NULL;
> > 
> > 

  reply	other threads:[~2005-08-10 17:06 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-08-10 14:19 [PATCH] remove name length check in a workqueue James Bottomley
2005-08-10 14:45 ` Ingo Molnar
2005-08-10 17:05   ` Andrew Morton [this message]
2005-08-10 17:24     ` James Bottomley
2005-08-10 17:37       ` Andrew Morton
2005-08-10 17:54         ` James Bottomley
2005-08-10 18:27           ` Andrew Morton
2005-08-11 14:37             ` Simon Derr
2005-08-11 16:22             ` Coywolf Qi Hunt
2005-08-10 18:49           ` Frederic TEMPORELLI - astek
  -- strict thread matches above, loose matches on Subject: below --
2005-08-11 18:48 Andreas Herrmann

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