On 05/12, Andi Kleen wrote:
>
> > This also allows us to de-uglify workqueue.c a little bit, it uses
> > a home-grown cpu_populated_map.
>
> It might be obsolete iff more and more architecture don't use NR_CPUS filled
> possible_map anymore (haven't checked them all to know if it's true or not)
>
> If not there are a couple of more optimizations that can be done, e.g.
> in networking by converting more code to hotplug notifier.
As for workqueue.c, it is not an optimization. It is a documentation.
For example, if CPU-hotplug use freezer, we can just do
s/cpu_populated_map/cpu_online_map/
workqueue.c has a hotplug notifier, but we can't migrate work_structs
currently in a race-free manner.
So I vote for your patch in any case.
Oleg.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
