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Groups > linux.kernel > #1506883
| From | Anshuman Khandual <khandual@linux.vnet.ibm.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [DEBUG 03/10] powerpc/mm: Allow memory hotplug into a memory less node |
| Date | 2016-10-24 06:50 +0200 |
| Message-ID | <svFmW-2IU-7@gated-at.bofh.it> (permalink) |
| References | <svFdf-2Fn-3@gated-at.bofh.it> <svFmV-2IU-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Reza Arbab <arbab@linux.vnet.ibm.com>
Remove the check which prevents us from hotplugging into an empty node.
Signed-off-by: Reza Arbab <arbab@linux.vnet.ibm.com>
Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
---
arch/powerpc/mm/numa.c | 13 +------------
1 file changed, 1 insertion(+), 12 deletions(-)
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 42fcc8e..5010181 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -1091,7 +1091,7 @@ static int hot_add_node_scn_to_nid(unsigned long scn_addr)
int hot_add_scn_to_nid(unsigned long scn_addr)
{
struct device_node *memory = NULL;
- int nid, found = 0;
+ int nid;
if (!numa_enabled || (min_common_depth < 0))
return first_online_node;
@@ -1107,17 +1107,6 @@ int hot_add_scn_to_nid(unsigned long scn_addr)
if (nid < 0 || !node_online(nid))
nid = first_online_node;
- if (NODE_DATA(nid)->node_spanned_pages)
- return nid;
-
- for_each_online_node(nid) {
- if (NODE_DATA(nid)->node_spanned_pages) {
- found = 1;
- break;
- }
- }
-
- BUG_ON(!found);
return nid;
}
--
2.1.0
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[RFC 0/8] Define coherent device memory node Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2016-10-24 06:40 +0200
[RFC 3/8] mm: Isolate coherent device memory nodes from HugeTLB allocation paths Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2016-10-24 06:40 +0200
Re: [RFC 3/8] mm: Isolate coherent device memory nodes from HugeTLB allocation paths Dave Hansen <dave.hansen@intel.com> - 2016-10-24 19:20 +0200
Re: [RFC 3/8] mm: Isolate coherent device memory nodes from HugeTLB allocation paths "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> - 2016-10-25 06:20 +0200
Re: [RFC 3/8] mm: Isolate coherent device memory nodes from HugeTLB allocation paths Balbir Singh <bsingharora@gmail.com> - 2016-10-25 09:20 +0200
Re: [RFC 3/8] mm: Isolate coherent device memory nodes from HugeTLB allocation paths Balbir Singh <bsingharora@gmail.com> - 2016-10-25 09:30 +0200
[RFC 7/8] mm: Add a new migration function migrate_virtual_range() Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2016-10-24 06:40 +0200
[DEBUG 06/10] mm: Export definition of 'zone_names' array through mmzone.h Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2016-10-24 06:50 +0200
[DEBUG 00/10] Test and debug patches for coherent device memory Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2016-10-24 06:50 +0200
[DEBUG 02/10] powerpc/mm: Create numa nodes for hotplug memory Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2016-10-24 06:50 +0200
[DEBUG 03/10] powerpc/mm: Allow memory hotplug into a memory less node Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2016-10-24 06:50 +0200
[DEBUG 08/10] powerpc: Enable CONFIG_MOVABLE_NODE for PPC64 platform Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2016-10-24 06:50 +0200
[DEBUG 01/10] dt-bindings: Add doc for ibm,hotplug-aperture Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2016-10-24 06:50 +0200
[DEBUG 05/10] powerpc/mm: Identify isolation seeking coherent memory nodes during boot Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2016-10-24 06:50 +0200
[DEBUG 10/10] test: Add a script to perform random VMA migrations across nodes Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2016-10-24 06:50 +0200
[DEBUG 07/10] mm: Add debugfs interface to dump each node's zonelist information Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2016-10-24 06:50 +0200
[DEBUG 04/10] mm: Enable CONFIG_MOVABLE_NODE on powerpc Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2016-10-24 06:50 +0200
[DEBUG 09/10] drivers: Add two drivers for coherent device memory tests Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2016-10-24 06:50 +0200
Re: [RFC 0/8] Define coherent device memory node Jerome Glisse <j.glisse@gmail.com> - 2016-10-24 19:10 +0200
Re: [RFC 0/8] Define coherent device memory node "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> - 2016-10-25 06:30 +0200
Re: [RFC 0/8] Define coherent device memory node Jerome Glisse <j.glisse@gmail.com> - 2016-10-25 17:20 +0200
Re: [RFC 0/8] Define coherent device memory node "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> - 2016-10-26 13:10 +0200
Re: [RFC 0/8] Define coherent device memory node Jerome Glisse <j.glisse@gmail.com> - 2016-10-26 18:10 +0200
Re: [RFC 0/8] Define coherent device memory node "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> - 2016-10-25 07:10 +0200
Re: [RFC 0/8] Define coherent device memory node Jerome Glisse <j.glisse@gmail.com> - 2016-10-25 17:40 +0200
Re: [RFC 0/8] Define coherent device memory node "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> - 2016-10-25 19:40 +0200
Re: [RFC 0/8] Define coherent device memory node Jerome Glisse <j.glisse@gmail.com> - 2016-10-25 21:00 +0200
Re: [RFC 0/8] Define coherent device memory node Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2016-10-26 13:20 +0200
Re: [RFC 0/8] Define coherent device memory node Jerome Glisse <j.glisse@gmail.com> - 2016-10-26 18:10 +0200
Re: [RFC 0/8] Define coherent device memory node Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2016-10-26 15:00 +0200
Re: [RFC 0/8] Define coherent device memory node Jerome Glisse <j.glisse@gmail.com> - 2016-10-26 18:30 +0200
Re: [RFC 0/8] Define coherent device memory node Balbir Singh <bsingharora@gmail.com> - 2016-10-25 14:10 +0200
Re: [RFC 0/8] Define coherent device memory node Jerome Glisse <j.glisse@gmail.com> - 2016-10-25 17:30 +0200
Re: [RFC 0/8] Define coherent device memory node Dave Hansen <dave.hansen@intel.com> - 2016-10-24 20:10 +0200
Re: [RFC 0/8] Define coherent device memory node David Nellans <dnellans@nvidia.com> - 2016-10-24 20:40 +0200
Re: [RFC 0/8] Define coherent device memory node Dave Hansen <dave.hansen@intel.com> - 2016-10-24 21:40 +0200
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