From: Helmut Schaa <helmut.schaa@googlemail.com>
Date: Thu, 3 Mar 2011 18:45:16 +0000 (+0100)
Subject: rt2x00: Revise irqmask locking for PCI devices
X-Git-Tag: v2.6.39-rc1~468^2~88^2^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0aa13b2e06fbb8327c7acb4ccf684b2b65c302ce;p=pandora-kernel.git

rt2x00: Revise irqmask locking for PCI devices

The PCI device irqmask is locked by a spin_lock. Currently
spin_lock_irqsave is used everywhere. To reduce the locking overhead
replace spin_lock_irqsave in hard irq context with spin_lock and in
soft irq context with spin_lock_irq.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

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