On 18/08/17 15:23, Tim Deegan wrote:
> Use the smp_ variants, as we're only synchronizing against other CPUs.
>
> Add a write barrier before incrementing the version.
>
> x86's memory ordering rules and the presence of various out-of-unit
> function calls mean that this code worked OK before, and
Use the smp_ variants, as we're only synchronizing against other CPUs.
Add a write barrier before incrementing the version.
x86's memory ordering rules and the presence of various out-of-unit
function calls mean that this code worked OK before, and the barriers
are mostly decorative.
