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Re: [RFC V2 02/12] mm: Isolate HugeTLB allocations away from CDM nodes

From Dave Hansen <dave.hansen@intel.com>
Newsgroups linux.kernel
Subject Re: [RFC V2 02/12] mm: Isolate HugeTLB allocations away from CDM nodes
Date 2017-01-30 18:30 +0100
Message-ID <t5nW9-6Jm-1@gated-at.bofh.it> (permalink)
References <t5aYV-7mm-3@gated-at.bofh.it> <t5aYV-7mm-13@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 01/29/2017 07:35 PM, Anshuman Khandual wrote:
> HugeTLB allocation/release/accounting currently spans across all the nodes
> under N_MEMORY node mask. Coherent memory nodes should not be part of these
> allocations. So use system_ram() call to fetch system RAM only nodes on the
> platform which can then be used for HugeTLB allocation purpose instead of
> N_MEMORY node mask. This isolates coherent device memory nodes from HugeTLB
> allocations.

Does this end up making it impossible to use hugetlbfs to access device
memory?

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Thread

[RFC V2 02/12] mm: Isolate HugeTLB allocations away from CDM nodes Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2017-01-30 04:40 +0100
  Re: [RFC V2 02/12] mm: Isolate HugeTLB allocations away from CDM  nodes Dave Hansen <dave.hansen@intel.com> - 2017-01-30 18:30 +0100
    Re: [RFC V2 02/12] mm: Isolate HugeTLB allocations away from CDM  nodes Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2017-01-31 02:10 +0100
      Re: [RFC V2 02/12] mm: Isolate HugeTLB allocations away from CDM  nodes Dave Hansen <dave.hansen@intel.com> - 2017-01-31 02:40 +0100
        Re: [RFC V2 02/12] mm: Isolate HugeTLB allocations away from CDM  nodes Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2017-02-01 15:10 +0100
          Re: [RFC V2 02/12] mm: Isolate HugeTLB allocations away from CDM  nodes Dave Hansen <dave.hansen@intel.com> - 2017-02-01 20:10 +0100

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