Re: [PATCH v1 05/12] mm/memory_hotplug: remove nid parameter from remove_memory() and friends

2021-06-09 Thread David Hildenbrand
On 08.06.21 13:18, David Hildenbrand wrote: On 08.06.21 13:11, Michael Ellerman wrote: David Hildenbrand writes: There is only a single user remaining. We can simply try to offline all online nodes - which is fast, because we usually span pages and can skip such nodes right away. That makes

Re: [PATCH v1 05/12] mm/memory_hotplug: remove nid parameter from remove_memory() and friends

2021-06-08 Thread David Hildenbrand
On 08.06.21 13:11, Michael Ellerman wrote: David Hildenbrand writes: There is only a single user remaining. We can simply try to offline all online nodes - which is fast, because we usually span pages and can skip such nodes right away. That makes me slightly nervous, because our big powerpc

Re: [PATCH v1 05/12] mm/memory_hotplug: remove nid parameter from remove_memory() and friends

2021-06-08 Thread Michael Ellerman
David Hildenbrand writes: > There is only a single user remaining. We can simply try to offline all > online nodes - which is fast, because we usually span pages and can skip > such nodes right away. That makes me slightly nervous, because our big powerpc boxes tend to trip on these scaling

[PATCH v1 05/12] mm/memory_hotplug: remove nid parameter from remove_memory() and friends

2021-06-07 Thread David Hildenbrand
There is only a single user remaining. We can simply try to offline all online nodes - which is fast, because we usually span pages and can skip such nodes right away. Cc: Michael Ellerman Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: "Rafael J. Wysocki" Cc: Len Brown Cc: Dan Williams