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 v4 5/8] mm/memory_hotplug: We always have a zone in find_(smallest|biggest)_section_pfn
Date: Fri, 30 Aug 2019 11:14:25 +0200 [thread overview]
Message-ID: <20190830091428.18399-6-david@redhat.com> (raw)
In-Reply-To: <20190830091428.18399-1-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 5bfca690a922..d6807934bb30 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:[~2019-08-30 9:15 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190830091428.18399-1-david@redhat.com>
2019-08-30 9:14 ` [PATCH v4 1/8] mm/memory_hotplug: Don't access uninitialized memmaps in shrink_pgdat_span() David Hildenbrand
2019-08-30 9:14 ` [PATCH v4 2/8] mm/memory_hotplug: Don't access uninitialized memmaps in shrink_zone_span() David Hildenbrand
2019-09-26 9:12 ` Aneesh Kumar K.V
2019-09-26 9:22 ` David Hildenbrand
2019-08-30 9:14 ` [PATCH v4 4/8] mm/memory_hotplug: Poison memmap in remove_pfn_range_from_zone() David Hildenbrand
2019-09-26 9:10 ` Aneesh Kumar K.V
2019-09-26 9:14 ` David Hildenbrand
2019-08-30 9:14 ` David Hildenbrand [this message]
2019-08-30 9:14 ` [PATCH v4 6/8] mm/memory_hotplug: Don't check for "all holes" in shrink_zone_span() David Hildenbrand
2019-08-30 9:14 ` [PATCH v4 7/8] mm/memory_hotplug: Drop local variables " David Hildenbrand
2019-08-30 9:14 ` [PATCH v4 8/8] mm/memory_hotplug: Cleanup __remove_pages() David Hildenbrand
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