On 20/03/17 10:58, Christoffer Dall wrote:
> Now when we do an early init of the static parts of the VGIC data
> structures, we can do things like checking if the AP lists are empty
> directly without having to explicitly check if the vgic is initialized
> and reduce a bit of work in our criticial path.
critical
> Note: list_empty is a single atomic read (uses READ_ONCE) and can
> therefore check if a list is empty or not without the need to take the
> spinlock protecting the list.
This note might be better placed in patch #2.
>
> Signed-off-by: Christoffer Dall <cdall@xxxxxxxxxx>
Acked-by: Marc Zyngier <marc.zyngier@xxxxxxx>
M.
--
Jazz is not dead. It just smells funny...
