From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Date: Thu, 9 Dec 2010 19:53:29 +0000 (-0500)
Subject: xen/irq: Cleanup the find_unbound_irq
X-Git-Tag: v2.6.38-rc1~434^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d1b758ebc2a82d738092cb42e742470f9d0ea53e;p=pandora-kernel.git

xen/irq: Cleanup the find_unbound_irq

The "find_unbound_irq" is a bit unusual - it allocates
virtual IRQ (event channels) in reverse order. This means
starting at the "top" of the available IRQs (nr_irqs) down
to the GSI/MSI IRQs (nr_irqs_gsi). Lets document this and
also make the variables easier to understand.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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