* Matthew Wilcox wrote:
> On Mon, May 25, 2020 at 08:29:54AM +0200, Ingo Molnar wrote:
> > > +void radix_tree_preload_end(void)
> > > +{
> > > + local_unlock(&radix_tree_preloads.lock);
> > > +}
> > > +EXPORT_SYMBOL(radix_tree_preload_end);
> >
> > Since upstream we are still mapping the local
On 2020-05-25 08:29:54 [+0200], Ingo Molnar wrote:
> Since upstream we are still mapping the local_lock primitives to
> preempt_disable()/preempt_enable(), I believe these uninlining changes should
> not be done
> in this patch, i.e. idr_preload_end() and radix_tree_preload_end() should
> stay in
On Mon, May 25, 2020 at 08:29:54AM +0200, Ingo Molnar wrote:
> > +void radix_tree_preload_end(void)
> > +{
> > + local_unlock(&radix_tree_preloads.lock);
> > +}
> > +EXPORT_SYMBOL(radix_tree_preload_end);
>
> Since upstream we are still mapping the local_lock primitives to
> preempt_disable()/pr
* Sebastian Andrzej Siewior wrote:
> The radix-tree and idr preload mechanisms use preempt_disable() to protect
> the complete operation between xxx_preload() and xxx_preload_end().
>
> As the code inside the preempt disabled section acquires regular spinlocks,
> which are converted to 'sleepi
The radix-tree and idr preload mechanisms use preempt_disable() to protect
the complete operation between xxx_preload() and xxx_preload_end().
As the code inside the preempt disabled section acquires regular spinlocks,
which are converted to 'sleeping' spinlocks on a PREEMPT_RT kernel and
eventual
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