From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Tue, 19 Aug 2008 20:19:36 +0000 (-0700)
Subject: x86/paravirt: add spin_lock_flags lock op
X-Git-Tag: v2.6.28-rc1~699^2^2~30
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=63d3a75d6f1fcf2f33e6abbe84e1f428c3586152;p=pandora-kernel.git

x86/paravirt: add spin_lock_flags lock op

It is useful for a pv_lock_ops backend to know whether interrupts are
enabled or not in the context a spin_lock is being called.  This
allows it to enable interrupts while spinning, which could be
particularly helpful when spinning becomes blocking.

The default implementation just calls the normal spin_lock op,
ignoring the flags.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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