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Date: Thu, 15 Oct 2009 14:32:54 -0500
From: Scott Wood <scottwood@freescale.com>
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To: Christian Borntraeger <borntraeger@de.ibm.com>
Subject: Re: [PATCH] hvc_console: returning 0 from put_chars is not an error
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Cc: linuxppc-dev@ozlabs.org, brueckner@linux.vnet.ibm.com,
	Timur Tabi <timur@freescale.com>, Alan Cox <alan@lxorguk.ukuu.org.uk>,
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Christian Borntraeger wrote:
> About the backends, there are some that spin until the text is delivered (e.g. 
> virtio) , others can drop (e.g. iucv is a connection oriented protocol and it 
> will (and has to) drop if there is no connection). 

Sure, dropping due to not having a connection makes sense.  That's 
different from merely being busy.  Can the iucv code tell the difference 
between those two states?

-Scott