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Groups > linux.kernel > #1519552

Re: [PATCH] mm: add ZONE_DEVICE statistics to smaps

From Anshuman Khandual <khandual@linux.vnet.ibm.com>
Newsgroups linux.kernel
Subject Re: [PATCH] mm: add ZONE_DEVICE statistics to smaps
Date 2016-11-11 05:20 +0100
Message-ID <sCbtL-7PU-3@gated-at.bofh.it> (permalink)
References <sC5Rn-42O-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 11/11/2016 03:41 AM, Dan Williams wrote:
> ZONE_DEVICE pages are mapped into a process via the filesystem-dax and
> device-dax mechanisms.  There are also proposals to use ZONE_DEVICE
> pages for other usages outside of dax.  Add statistics to smaps so
> applications can debug that they are obtaining the mappings they expect,
> or otherwise accounting them.

This might also help when we will have ZONE_DEVICE based solution for
HMM based device memory.

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Thread

[PATCH] mm: add ZONE_DEVICE statistics to smaps Dan Williams <dan.j.williams@intel.com> - 2016-11-10 23:20 +0100
  Re: [PATCH] mm: add ZONE_DEVICE statistics to smaps Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2016-11-11 05:20 +0100
  Re: [PATCH] mm: add ZONE_DEVICE statistics to smaps Dan Williams <dan.j.williams@intel.com> - 2016-11-15 04:20 +0100
    Re: [PATCH] mm: add ZONE_DEVICE statistics to smaps Christoph Hellwig <hch@lst.de> - 2016-11-15 20:00 +0100
  Re: [PATCH] mm: add ZONE_DEVICE statistics to smaps Andrew Morton <akpm@linux-foundation.org> - 2016-11-16 01:10 +0100
  Re: [PATCH] mm: add ZONE_DEVICE statistics to smaps Dave Hansen <dave.hansen@intel.com> - 2016-11-16 01:20 +0100
    Re: [PATCH] mm: add ZONE_DEVICE statistics to smaps Dan Williams <dan.j.williams@intel.com> - 2016-11-16 01:50 +0100

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