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From: Dan Williams <dan.j.williams@intel.com>
To: akpm@linux-foundation.org
Cc: Michal Hocko <mhocko@suse.com>,
	Pavel Tatashin <pasha.tatashin@soleen.com>,
	David Hildenbrand <david@redhat.com>,
	linux-nvdimm@lists.01.org, linux-kernel@vger.kernel.org,
	linux-mm@kvack.org, Oscar Salvador <osalvador@suse.de>
Subject: [PATCH v10 06/13] mm/hotplug: Kill is_dev_zone() usage in __remove_pages()
Date: Tue, 18 Jun 2019 22:52:06 -0700	[thread overview]
Message-ID: <156092352642.979959.6664333788149363039.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <156092349300.979959.17603710711957735135.stgit@dwillia2-desk3.amr.corp.intel.com>

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@suse.com>
Cc: Logan Gunthorpe <logang@deltatee.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.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 647859a1d119..4b882c57781a 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -535,11 +535,8 @@ 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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WARNING: multiple messages have this Message-ID (diff)
From: Dan Williams <dan.j.williams@intel.com>
To: akpm@linux-foundation.org
Cc: Michal Hocko <mhocko@suse.com>,
	Logan Gunthorpe <logang@deltatee.com>,
	Pavel Tatashin <pasha.tatashin@soleen.com>,
	David Hildenbrand <david@redhat.com>,
	Oscar Salvador <osalvador@suse.de>,
	linux-mm@kvack.org, linux-nvdimm@lists.01.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v10 06/13] mm/hotplug: Kill is_dev_zone() usage in __remove_pages()
Date: Tue, 18 Jun 2019 22:52:06 -0700	[thread overview]
Message-ID: <156092352642.979959.6664333788149363039.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <156092349300.979959.17603710711957735135.stgit@dwillia2-desk3.amr.corp.intel.com>

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@suse.com>
Cc: Logan Gunthorpe <logang@deltatee.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.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 647859a1d119..4b882c57781a 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -535,11 +535,8 @@ 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);
 


  parent reply	other threads:[~2019-06-19  6:06 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-19  5:51 [PATCH v10 00/13] mm: Sub-section memory hotplug support Dan Williams
2019-06-19  5:51 ` Dan Williams
2019-06-19  5:51 ` [PATCH v10 01/13] mm/sparsemem: Introduce struct mem_section_usage Dan Williams
2019-06-19  5:51   ` Dan Williams
2019-06-19  5:51 ` [PATCH v10 02/13] mm/sparsemem: Introduce a SECTION_IS_EARLY flag Dan Williams
2019-06-19  5:51   ` Dan Williams
2019-06-24 17:54   ` Oscar Salvador
2019-06-24 17:54     ` Oscar Salvador
2019-06-19  5:51 ` [PATCH v10 03/13] mm/sparsemem: Add helpers track active portions of a section at boot Dan Williams
2019-06-19  5:51   ` Dan Williams
2019-06-24 17:57   ` Oscar Salvador
2019-06-24 17:57     ` Oscar Salvador
2019-06-24 17:57     ` Oscar Salvador
2019-06-19  5:51 ` [PATCH v10 04/13] mm/hotplug: Prepare shrink_{zone, pgdat}_span for sub-section removal Dan Williams
2019-06-19  5:51   ` Dan Williams
2019-06-19  5:52 ` [PATCH v10 05/13] mm/sparsemem: Convert kmalloc_section_memmap() to populate_section_memmap() Dan Williams
2019-06-19  5:52   ` Dan Williams
2019-06-24 18:00   ` Oscar Salvador
2019-06-24 18:00     ` Oscar Salvador
2019-06-24 18:00     ` Oscar Salvador
2019-06-19  5:52 ` Dan Williams [this message]
2019-06-19  5:52   ` [PATCH v10 06/13] mm/hotplug: Kill is_dev_zone() usage in __remove_pages() Dan Williams
2019-06-19  5:52 ` [PATCH v10 07/13] mm: Kill is_dev_zone() helper Dan Williams
2019-06-19  5:52   ` Dan Williams
2019-06-19  5:52 ` [PATCH v10 08/13] mm/sparsemem: Prepare for sub-section ranges Dan Williams
2019-06-19  5:52   ` Dan Williams
2019-06-20 10:31   ` David Hildenbrand
2019-06-20 10:31     ` David Hildenbrand
2019-06-20 16:19     ` Dan Williams
2019-06-20 16:19       ` Dan Williams
2019-06-20 16:35       ` David Hildenbrand
2019-06-20 16:35         ` David Hildenbrand
2019-06-20 16:56         ` Dan Williams
2019-06-20 16:56           ` Dan Williams
2019-06-20 16:56           ` Dan Williams
2019-06-24 18:05   ` Oscar Salvador
2019-06-24 18:05     ` Oscar Salvador
2019-06-24 18:05     ` Oscar Salvador
2019-06-19  5:52 ` [PATCH v10 09/13] mm/sparsemem: Support sub-section hotplug Dan Williams
2019-06-19  5:52   ` Dan Williams
2019-06-24 20:45   ` Oscar Salvador
2019-06-24 20:45     ` Oscar Salvador
2019-06-24 20:45     ` Oscar Salvador
2019-06-19  5:52 ` [PATCH v10 10/13] mm: Document ZONE_DEVICE memory-model implications Dan Williams
2019-06-19  5:52   ` Dan Williams
2019-06-20 12:30   ` Mike Rapoport
2019-06-20 12:30     ` Mike Rapoport
2019-06-19  5:52 ` [PATCH v10 11/13] mm/devm_memremap_pages: Enable sub-section remap Dan Williams
2019-06-19  5:52   ` Dan Williams
2019-06-19  5:52 ` [PATCH v10 12/13] libnvdimm/pfn: Fix fsdax-mode namespace info-block zero-fields Dan Williams
2019-06-19  5:52   ` Dan Williams
2019-06-19 16:30   ` Aneesh Kumar K.V
2019-06-19 17:06     ` Dan Williams
2019-06-19 17:06       ` Dan Williams
2019-06-19 17:06       ` Dan Williams
2019-06-19  5:52 ` [PATCH v10 13/13] libnvdimm/pfn: Stop padding pmem namespaces to section alignment Dan Williams
2019-06-19  5:52   ` Dan Williams
2019-06-20 12:30 ` [PATCH v10 00/13] mm: Sub-section memory hotplug support Aneesh Kumar K.V
2019-06-20 12:30   ` Aneesh Kumar K.V
2019-06-20 16:30   ` Dan Williams
2019-06-20 16:30     ` Dan Williams
2019-06-20 17:00 ` Oscar Salvador
2019-06-20 17:00   ` Oscar Salvador

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