Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io

From	"hch@infradead.org" <hch@infradead.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io
Date	2016-05-08 11:10 +0200
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On Thu, May 05, 2016 at 09:39:14PM +0000, Verma, Vishal L wrote:
> How is it any 'less direct'? All it does now is follow the blockdev
> O_DIRECT path. There still isn't any page cache involved..

It's still more overhead than the play DAX I/O path.

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[PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io Vishal Verma <vishal.l.verma@intel.com> - 2016-04-28 23:20 +0200
  Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io Christoph Hellwig <hch@infradead.org> - 2016-05-02 17:00 +0200
    Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io Vishal Verma <vishal@kernel.org> - 2016-05-02 17:50 +0200
  Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io Boaz Harrosh <boaz@plexistor.com> - 2016-05-02 17:50 +0200
    Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io Vishal Verma <vishal@kernel.org> - 2016-05-02 18:00 +0200
      Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io Boaz Harrosh <boaz@plexistor.com> - 2016-05-02 18:10 +0200
        Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io "Verma, Vishal L" <vishal.l.verma@intel.com> - 2016-05-02 21:00 +0200
    Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io Dan Williams <dan.j.williams@intel.com> - 2016-05-02 18:10 +0200
      Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io Boaz Harrosh <boaz@plexistor.com> - 2016-05-02 18:30 +0200
        Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io Dan Williams <dan.j.williams@intel.com> - 2016-05-02 19:00 +0200
          Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io Boaz Harrosh <boaz@plexistor.com> - 2016-05-02 19:50 +0200
            Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io Dan Williams <dan.j.williams@intel.com> - 2016-05-02 20:20 +0200
              Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io Boaz Harrosh <boaz@plexistor.com> - 2016-05-02 20:40 +0200
                Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io Dan Williams <dan.j.williams@intel.com> - 2016-05-02 20:50 +0200
                Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io Boaz Harrosh <boaz@plexistor.com> - 2016-05-02 21:30 +0200
    Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io Christoph Hellwig <hch@infradead.org> - 2016-05-05 16:30 +0200
      Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io Dan Williams <dan.j.williams@intel.com> - 2016-05-05 17:20 +0200
        Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io Christoph Hellwig <hch@infradead.org> - 2016-05-05 17:30 +0200
          Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io Dan Williams <dan.j.williams@intel.com> - 2016-05-05 18:30 +0200
          Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io "Verma, Vishal L" <vishal.l.verma@intel.com> - 2016-05-05 23:50 +0200
            Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io "hch@infradead.org" <hch@infradead.org> - 2016-05-08 11:10 +0200
              Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io "Verma, Vishal L" <vishal.l.verma@intel.com> - 2016-05-08 20:50 +0200
        Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io "Verma, Vishal L" <vishal.l.verma@intel.com> - 2016-05-05 23:50 +0200
      Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io "Verma, Vishal L" <vishal.l.verma@intel.com> - 2016-05-05 23:40 +0200
        Re: [PATCH v4 5/7] fs: prioritize and separate direct_io from dax_io "hch@infradead.org" <hch@infradead.org> - 2016-05-08 11:10 +0200

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