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Groups > linux.kernel > #1491612
| From | Reza Arbab <arbab@linux.vnet.ibm.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v3 4/5] powerpc/mm: restore top-down allocation when using movable_node |
| Date | 2016-09-27 02:20 +0200 |
| Message-ID | <slOhP-2ju-1@gated-at.bofh.it> (permalink) |
| References | <slmvf-1Fh-7@gated-at.bofh.it> <slmvf-1Fh-13@gated-at.bofh.it> <slLtE-wZ-5@gated-at.bofh.it> |
| Organization | IBM Linux Technology Center |
On Tue, Sep 27, 2016 at 07:12:31AM +1000, Benjamin Herrenschmidt wrote: >In any case, if the memory hasn't been hotplug, this shouldn't be >necessary as we shouldn't be considering it for allocation. Right. To be clear, the background info I put in the commit log refers to x86, where the SRAT can describe movable nodes which exist at boot. They're trying to avoid allocations from those nodes before they've been identified. On power, movable nodes can only exist via hotplug, so that scenario can't happen. We can immediately go back to top-down allocation. That is the missing call being added in the patch. -- Reza Arbab
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[PATCH v3 0/5] powerpc/mm: movable hotplug memory nodes Reza Arbab <arbab@linux.vnet.ibm.com> - 2016-09-25 20:40 +0200
[PATCH v3 2/5] drivers/of: do not add memory for unavailable nodes Reza Arbab <arbab@linux.vnet.ibm.com> - 2016-09-25 20:40 +0200
[PATCH v3 4/5] powerpc/mm: restore top-down allocation when using movable_node Reza Arbab <arbab@linux.vnet.ibm.com> - 2016-09-25 20:40 +0200
Re: [PATCH v3 4/5] powerpc/mm: restore top-down allocation when using movable_node "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> - 2016-09-26 17:50 +0200
Re: [PATCH v3 4/5] powerpc/mm: restore top-down allocation when using movable_node Reza Arbab <arbab@linux.vnet.ibm.com> - 2016-09-26 22:50 +0200
Re: [PATCH v3 4/5] powerpc/mm: restore top-down allocation when using movable_node Benjamin Herrenschmidt <benh@kernel.crashing.org> - 2016-09-26 23:20 +0200
Re: [PATCH v3 4/5] powerpc/mm: restore top-down allocation when using movable_node Reza Arbab <arbab@linux.vnet.ibm.com> - 2016-09-27 02:20 +0200
Re: [PATCH v3 4/5] powerpc/mm: restore top-down allocation when using movable_node Balbir Singh <bsingharora@gmail.com> - 2016-10-04 02:50 +0200
Re: [PATCH v3 4/5] powerpc/mm: restore top-down allocation when using movable_node Reza Arbab <arbab@linux.vnet.ibm.com> - 2016-10-04 22:30 +0200
[PATCH v3 3/5] powerpc/mm: allow memory hotplug into a memoryless node Reza Arbab <arbab@linux.vnet.ibm.com> - 2016-09-25 20:40 +0200
[PATCH v3 5/5] mm: enable CONFIG_MOVABLE_NODE on powerpc Reza Arbab <arbab@linux.vnet.ibm.com> - 2016-09-25 20:40 +0200
Re: [PATCH v3 5/5] mm: enable CONFIG_MOVABLE_NODE on powerpc "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> - 2016-09-26 17:50 +0200
Re: [PATCH v3 5/5] mm: enable CONFIG_MOVABLE_NODE on powerpc Benjamin Herrenschmidt <benh@kernel.crashing.org> - 2016-09-26 23:20 +0200
Re: [PATCH v3 5/5] mm: enable CONFIG_MOVABLE_NODE on powerpc Reza Arbab <arbab@linux.vnet.ibm.com> - 2016-09-27 02:20 +0200
[PATCH v3 1/5] drivers/of: introduce of_fdt_is_available() Reza Arbab <arbab@linux.vnet.ibm.com> - 2016-09-25 20:40 +0200
Re: [PATCH v3 1/5] drivers/of: introduce of_fdt_is_available() Rob Herring <robh+dt@kernel.org> - 2016-10-03 17:30 +0200
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