linux-stable.git/arch/ia64/include/asm/sync_bitops.h, branch linux-3.3.y Linux kernel stable tree ia64/xen: introduce sync bitops which is necessary for ia64/xen support. 2008-10-17T16:53:33+00:00 Isaku Yamahata yamahata@valinux.co.jp 2008-10-17T02:17:46+00:00 1b051c6be34b3b06fa1244d9fcd47f91fb6aca1c define sync bitops which is necessary for ia64/xen. This bit operation is used to communicate with VMM or other guest kernel Even when this kernel is built for UP, VMM might be SMP so that those operation must always use atomic operation. Cc: Robin Holt <holt@sgi.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com> 
define sync bitops which is necessary for ia64/xen.
This bit operation is used to communicate with VMM or other guest kernel
Even when this kernel is built for UP, VMM might be SMP so that those operation
must always use atomic operation.

Cc: Robin Holt <holt@sgi.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>