From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux-kernel@vger.kernel.org, alan@redhat.com,
borntraeger@de.ibm.com, peter.oberparleiter@de.ibm.com,
schwidefsky@de.ibm.com, Andrew Morton <akpm@linux-foundation.org>
Subject: Re: + s390-tty-prepare-for-put_char-to-return-success-fail.patch added to -mm tree
Date: Tue, 15 Apr 2008 11:11:01 +0100 [thread overview]
Message-ID: <20080415111101.41b6e9e3@core> (raw)
In-Reply-To: <20080415072117.GA4177@osiris.boeblingen.de.ibm.com>
> 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.
Alan
next prev parent reply other threads:[~2008-04-15 10:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-15 2:04 + s390-tty-prepare-for-put_char-to-return-success-fail.patch added to -mm tree akpm
2008-04-15 7:21 ` Heiko Carstens
2008-04-15 10:11 ` Alan Cox [this message]
2008-04-15 10:45 ` Heiko Carstens
2008-04-15 11:07 ` Alan Cox
2008-04-15 17:59 ` Andrew Morton
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