Jeremy Fitzhardinge 11ad93e59d xen: clarify locking used when pinning a pagetable.
Add some comments explaining the locking and pinning algorithm when
using split pte locks.  Also implement a minor optimisation of not
pinning the PTE when not using split pte locks.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Xen-devel <xen-devel@lists.xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-20 12:40:08 +02:00
..
2008-07-16 11:08:44 +02:00