Re: [PATCH v4 3/3] mm: call cond_resched() from deferred_init_memmap()

[David Hildenbrand]

On 03.04.20 16:09, Pavel Tatashin wrote:
> Now that deferred pages are initialized with interrupts enabled we can
> replace touch_nmi_watchdog() with cond_resched(), as it was before
> 3a2d7fa8a3d5.
> 
> For now, we cannot do the same in deferred_grow_zone() as it is still
> initializes pages with interrupts disabled.
> 
> This change fixes RCU problem described:
> linux-mm/20200401104156.11564-2-david@xxxxxxxxxx

BTW,

https://lkml.kernel.org/r/20200401104156.11564-2-david@xxxxxxxxxx

Would be better.


-- 
Thanks,

David / dhildenb