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SubjectRe: [patch 1/4] net: percpufy frequently used vars -- add percpu_counter_mod_bh
On Wed, Mar 08, 2006 at 04:17:33PM -0500, Benjamin LaHaise wrote:
> On Wed, Mar 08, 2006 at 01:07:26PM -0800, Ravikiran G Thirumalai wrote:
>
> Last time I checked, all the major architectures had efficient local_t
> implementations. Most of the RISC CPUs are able to do a load / store
> conditional implementation that is the same cost (since memory barriers
> tend to be explicite on powerpc). So why not use it?

Then, for the batched percpu_counters, we could gain by using local_t only for
the UP case. But we will have to have a new local_long_t implementation
for that. Do you think just one use case of local_long_t warrants for a new
set of apis?

Kiran
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