Messages in this thread | | | Date | Wed, 23 Jan 2019 11:22:42 +0100 | From | Michal Hocko <> | Subject | Re: [PATCH] mm,memory_hotplug: Fix scan_movable_pages for gigantic hugepages |
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On Wed 23-01-19 11:18:42, Oscar Salvador wrote: > On Wed, Jan 23, 2019 at 10:47:17AM +0100, Michal Hocko wrote: > > So this should be probably folded into the above patch as it is > > incomplete unless I am missing something. > > Well, they are triggered from different paths. > The former error was triggered in: > > removable_show > is_mem_section_removable > is_pageblock_removable_nolock > has_unmovable_pages > > while this one is triggered when actually doing the offline operation
But it would trigger from the offline path as well, no?
> __offline_pages > scan_movable_pages > > But I do agree that one without the other is not really useful, an incomplete. > The truth is that I did not spot this one when fixing [1] because I did not > really try to offline the memblock back then, so my fault.
I should have noticed that during the review but those paths are really far away from each other so this is hard to spot indeed
> While I agree that the best approach would be to fold this one into [1], > I am not sure if it is too late for that as it seems that [1] was already > released into mainline, and moreover to stable.
OK, I wasn't aware of that. Then my suggestion is clearly moot.
> I guess I will have Andrew decide what is the best way to carry on here. > > [1] https://patchwork.kernel.org/patch/10739963/ > > > > > > Signed-off-by: Oscar Salvador <osalvador@suse.de> > > > > Other than that the change looks good to me. > > > > Acked-by: Michal Hocko <mhocko@suse.com> > > Thanks! > -- > Oscar Salvador > SUSE L3
-- Michal Hocko SUSE Labs
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