linux-kernel - Re: + s390-tty-prepare-for-put_char-to-return-success-fail.patch added to -mm tree

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Message-ID: <20080415104507.GA18307@osiris.boeblingen.de.ibm.com>
Date:	Tue, 15 Apr 2008 12:45:07 +0200
From:	Heiko Carstens <heiko.carstens@...ibm.com>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	linux-kernel@...r.kernel.org, alan@...hat.com,
	borntraeger@...ibm.com, peter.oberparleiter@...ibm.com,
	schwidefsky@...ibm.com, Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: + s390-tty-prepare-for-put_char-to-return-success-fail.patch
	added to -mm tree

On Tue, Apr 15, 2008 at 11:11:01AM +0100, Alan Cox wrote:
> > is allowed or not (1 means yes). Somebody told me that the put_char routine
> > will only be called from schedulable context, which now doesn't seem to be
> > true?!
> 
> It isnt true.
> 
> > For the console functions we pass indeed 0 to __sclp_vt220_write since printk
> > may be called within any context. Is that also true for the tty put_char
> > routine?
> 
> Yes, but failing a put_char is perfectly acceptable.

Ok, thanks for pointing this out! We are going to fix this as soon as your
patch is merged, so we can avoid further merge conflicts.
I assume your patch is for 2.6.26?
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