On Tuesday 15 November 2016 01:36 PM, Gabriel Paubert wrote:
Hi,
On Mon, Nov 14, 2016 at 11:34:52PM +0530, Madhavan Srinivasan wrote:
Local atomic operations are fast and highly reentrant per CPU counters.
Used for percpu variable updates. Local atomic operations only guarantee
vari
On Tue, 2016-11-15 at 09:06 +0100, Gabriel Paubert wrote:
>
> I'm really wondering whether this is the kind of thing that would
> benefit from transactions. But transactional memory was only implemented
> on Power7 and later IIRC, and we still need to support machines without
> transactional memor
Hi,
On Mon, Nov 14, 2016 at 11:34:52PM +0530, Madhavan Srinivasan wrote:
> Local atomic operations are fast and highly reentrant per CPU counters.
> Used for percpu variable updates. Local atomic operations only guarantee
> variable modification atomicity wrt the CPU which owns the data an
