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Re: [PATCH v3] libnvdimm, region: sysfs trigger for nvdimm_flush()

From Jeff Moyer <jmoyer@redhat.com>
Newsgroups linux.kernel
Subject Re: [PATCH v3] libnvdimm, region: sysfs trigger for nvdimm_flush()
Date 2017-04-27 21:50 +0200
Message-ID <tAXAm-588-3@gated-at.bofh.it> (permalink)
References (4 earlier) <tARXX-1hZ-7@gated-at.bofh.it> <tAUVP-3hr-1@gated-at.bofh.it> <tAWEi-4wU-17@gated-at.bofh.it> <tAX7j-4Xl-9@gated-at.bofh.it> <tAXh0-511-25@gated-at.bofh.it>
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Dan Williams <dan.j.williams@intel.com> writes:

> We also still seem to need a discovery mechanism as I've had questions
> about "how do I tell if my system supports deep flush?". That's where
> sysfs is much better than an ioctl. The need for deep flush discovery
> tips the scales, at least for me, to also do deep flush triggering
> through the same interface.

Return ENXIO or EOPNOTSUPP from the ioctl when it isn't supported?

Cheers,
Jeff

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Thread

[PATCH v2 2/2] libnvdimm, region: sysfs trigger for nvdimm_flush() Dan Williams <dan.j.williams@intel.com> - 2017-04-25 02:00 +0200
  Re: [PATCH v2 2/2] libnvdimm, region: sysfs trigger for  nvdimm_flush() Ross Zwisler <ross.zwisler@linux.intel.com> - 2017-04-25 18:40 +0200
    Re: [PATCH v2 2/2] libnvdimm, region: sysfs trigger for nvdimm_flush() Dan Williams <dan.j.williams@intel.com> - 2017-04-25 18:40 +0200
  [PATCH v3] libnvdimm, region: sysfs trigger for nvdimm_flush() Dan Williams <dan.j.williams@intel.com> - 2017-04-25 22:30 +0200
    Re: [PATCH v3] libnvdimm, region: sysfs trigger for nvdimm_flush() Jeff Moyer <jmoyer@redhat.com> - 2017-04-26 22:40 +0200
      Re: [PATCH v3] libnvdimm, region: sysfs trigger for nvdimm_flush() Dan Williams <dan.j.williams@intel.com> - 2017-04-27 01:10 +0200
        Re: [PATCH v3] libnvdimm, region: sysfs trigger for nvdimm_flush() Jeff Moyer <jmoyer@redhat.com> - 2017-04-27 15:50 +0200
          Re: [PATCH v3] libnvdimm, region: sysfs trigger for nvdimm_flush() Dan Williams <dan.j.williams@intel.com> - 2017-04-27 19:00 +0200
            Re: [PATCH v3] libnvdimm, region: sysfs trigger for nvdimm_flush() Jeff Moyer <jmoyer@redhat.com> - 2017-04-27 20:50 +0200
              Re: [PATCH v3] libnvdimm, region: sysfs trigger for nvdimm_flush() Dan Williams <dan.j.williams@intel.com> - 2017-04-27 21:20 +0200
                Re: [PATCH v3] libnvdimm, region: sysfs trigger for nvdimm_flush() Dan Williams <dan.j.williams@intel.com> - 2017-04-27 21:30 +0200
                Re: [PATCH v3] libnvdimm, region: sysfs trigger for nvdimm_flush() Jeff Moyer <jmoyer@redhat.com> - 2017-04-27 21:50 +0200
                Re: [PATCH v3] libnvdimm, region: sysfs trigger for nvdimm_flush() Jeff Moyer <jmoyer@redhat.com> - 2017-04-27 21:50 +0200
                Re: [PATCH v3] libnvdimm, region: sysfs trigger for nvdimm_flush() Dan Williams <dan.j.williams@intel.com> - 2017-04-27 22:10 +0200
                Re: [PATCH v3] libnvdimm, region: sysfs trigger for nvdimm_flush() Dan Williams <dan.j.williams@intel.com> - 2017-04-27 23:40 +0200
      [PATCH v4] libnvdimm, region: sysfs trigger for nvdimm_flush() Dan Williams <dan.j.williams@intel.com> - 2017-04-27 01:50 +0200
        [PATCH v5] libnvdimm, region: sysfs trigger for nvdimm_flush() Dan Williams <dan.j.williams@intel.com> - 2017-04-28 00:30 +0200

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