On Thu, Apr 26, 2012 at 04:59:11PM -0700, Andrew Morton wrote:
[...]
> > so its not like new tasks will ever get this cpu set in
> > +* their mm mask. -- Peter Zijlstra
> > +* Thus, we may use rcu_read_lock() here, instead of grabbing
> > +* full-fledged tasklist_lock.
> > +*/
This patch adds more comments on clear_tasks_mm_cpumask, plus adds
a runtime check: the function is only suitable for offlined CPUs,
and if called inappropriately, the kernel should scream aloud.
Suggested-by: Andrew Morton
Suggested-by: Peter Zijlstra
Signed-off-by: Anton Vorontsov
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On Tue
