tree fc633cd3d2d92c846463d2c7f476647de1dbc27a
parent 994025caba3e6beade9bde84dd1b70d9d250f27b
author Jeremy Fitzhardinge <jeremy@goop.org> 1219276940 -0700
committer Ingo Molnar <mingo@elte.hu> 1219319578 +0200

xen: allow interrupts to be enabled while doing a blocking spin

If spin_lock is called in an interrupts-enabled context, we can safely
enable interrupts while spinning.  We don't bother for the actual spin
loop, but if we timeout and fall back to blocking, it's definitely
worthwhile enabling interrupts if possible.

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