commit 63d3a75d6f1fcf2f33e6abbe84e1f428c3586152
author Jeremy Fitzhardinge <jeremy@goop.org> Tue Aug 19 13:19:36 2008 -0700
committer Ingo Molnar <mingo@elte.hu> Wed Aug 20 12:40:07 2008 +0200
tree 3b7453c784b4fad0afe002942d48bfc876010999
parent 6e833587e11ed0dbf12e647127f2650e2f80b26d

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>