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Date: Wed, 01 May 2019 22:55:53 -0700 From: Dan Williams <dan.j.williams@...el.com> To: akpm@...ux-foundation.org Cc: Michal Hocko <mhocko@...e.com>, Logan Gunthorpe <logang@...tatee.com>, David Hildenbrand <david@...hat.com>, linux-nvdimm@...ts.01.org, linux-mm@...ck.org, linux-kernel@...r.kernel.org, osalvador@...e.de, mhocko@...e.com Subject: [PATCH v7 06/12] mm/hotplug: Kill is_dev_zone() usage in __remove_pages() The zone type check was a leftover from the cleanup that plumbed altmap through the memory hotplug path, i.e. commit da024512a1fa "mm: pass the vmem_altmap to arch_remove_memory and __remove_pages". Cc: Michal Hocko <mhocko@...e.com> Cc: Logan Gunthorpe <logang@...tatee.com> Cc: David Hildenbrand <david@...hat.com> Signed-off-by: Dan Williams <dan.j.williams@...el.com> --- mm/memory_hotplug.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 0d379da0f1a8..108380e20d8f 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -544,11 +544,8 @@ void __remove_pages(struct zone *zone, unsigned long phys_start_pfn, unsigned long map_offset = 0; int sections_to_remove; - /* In the ZONE_DEVICE case device driver owns the memory region */ - if (is_dev_zone(zone)) { - if (altmap) - map_offset = vmem_altmap_offset(altmap); - } + if (altmap) + map_offset = vmem_altmap_offset(altmap); clear_zone_contiguous(zone);
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