From: David Hildenbrand <david@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org, David Hildenbrand <david@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Oscar Salvador <osalvador@suse.de>,
Michal Hocko <mhocko@suse.com>,
Pavel Tatashin <pasha.tatashin@soleen.com>,
Dan Williams <dan.j.williams@intel.com>,
Wei Yang <richardw.yang@linux.intel.com>
Subject: [PATCH v3 03/11] mm/memory_hotplug: We always have a zone in find_(smallest|biggest)_section_pfn
Date: Thu, 29 Aug 2019 09:00:11 +0200 [thread overview]
Message-ID: <20190829070019.12714-4-david@redhat.com> (raw)
In-Reply-To: <20190829070019.12714-1-david@redhat.com>
With shrink_pgdat_span() out of the way, we now always have a valid
zone.
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: David Hildenbrand <david@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Wei Yang <richardw.yang@linux.intel.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
mm/memory_hotplug.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 70cd6c59c168..0a21f6f99753 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -337,7 +337,7 @@ static unsigned long find_smallest_section_pfn(int nid, struct zone *zone,
if (unlikely(pfn_to_nid(start_pfn) != nid))
continue;
- if (zone && zone != page_zone(pfn_to_page(start_pfn)))
+ if (zone != page_zone(pfn_to_page(start_pfn)))
continue;
return start_pfn;
@@ -362,7 +362,7 @@ static unsigned long find_biggest_section_pfn(int nid, struct zone *zone,
if (unlikely(pfn_to_nid(pfn) != nid))
continue;
- if (zone && zone != page_zone(pfn_to_page(pfn)))
+ if (zone != page_zone(pfn_to_page(pfn)))
continue;
return pfn;
--
2.21.0
next prev parent reply other threads:[~2019-08-29 7:00 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-29 7:00 [PATCH v3 00/11] mm/memory_hotplug: Shrink zones before removing memory David Hildenbrand
2019-08-29 7:00 ` [PATCH v3 01/11] mm/memremap: Get rid of memmap_init_zone_device() David Hildenbrand
2019-08-29 16:39 ` Alexander Duyck
2019-08-29 16:55 ` David Hildenbrand
2019-08-29 7:00 ` [PATCH v3 02/11] mm/memory_hotplug: Simplify shrink_pgdat_span() David Hildenbrand
2019-08-29 7:00 ` David Hildenbrand [this message]
2019-08-29 7:00 ` [PATCH v3 04/11] mm/memory_hotplug: Drop local variables in shrink_zone_span() David Hildenbrand
2019-08-29 7:00 ` [PATCH v3 05/11] mm/memory_hotplug: Optimize zone shrinking code when checking for holes David Hildenbrand
2019-08-29 7:00 ` [PATCH v3 06/11] mm/memory_hotplug: Fix crashes in shrink_zone_span() David Hildenbrand
2019-08-29 7:00 ` [PATCH v3 07/11] mm/memory_hotplug: Exit early in __remove_pages() on BUGs David Hildenbrand
2019-08-29 7:00 ` [PATCH v3 08/11] mm: Exit early in set_zone_contiguous() if already contiguous David Hildenbrand
2019-08-29 7:00 ` [PATCH v3 09/11] mm/memory_hotplug: Remove pages from a zone before removing memory David Hildenbrand
2019-08-29 7:00 ` [PATCH v3 10/11] mm/memory_hotplug: Remove zone parameter from __remove_pages() David Hildenbrand
2019-08-29 7:00 ` [PATCH v3 11/11] mm/memory_hotplug: Cleanup __remove_pages() David Hildenbrand
2019-08-29 8:23 ` [PATCH v3 00/11] mm/memory_hotplug: Shrink zones before removing memory Michal Hocko
2019-08-29 11:33 ` David Hildenbrand
2019-08-29 11:43 ` David Hildenbrand
2019-08-29 12:08 ` David Hildenbrand
2019-08-29 12:15 ` Michal Hocko
2019-08-29 12:29 ` David Hildenbrand
2019-08-29 15:19 ` Michal Hocko
2019-08-29 15:28 ` David Hildenbrand
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