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Re: [PATCH] NVMe: do not touch sq door bell if nvmeq has been suspended

From Keith Busch <keith.busch@intel.com>
Newsgroups linux.kernel
Subject Re: [PATCH] NVMe: do not touch sq door bell if nvmeq has been suspended
Date 2016-02-02 15:30 +0100
Message-ID <qXK7T-4be-3@gated-at.bofh.it> (permalink)
References <qXoTM-4WL-13@gated-at.bofh.it> <qXpZw-5Jg-1@gated-at.bofh.it> <qXIza-2Za-31@gated-at.bofh.it> <qXIz9-2Za-29@gated-at.bofh.it>
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On Tue, Feb 02, 2016 at 02:41:37PM +0200, Sagi Grimberg wrote:
> First of all, I think we need to cancel all
> inflight requests before nvme_dev_unmap.

IO cancelling is where it is because it protects against host memory
corruption. If you're going to mess with the ordering, just make sure
the PCI device is disabled from bus mastering first.

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Thread

[PATCH] NVMe: do not touch sq door bell if nvmeq has been suspended Wenbo Wang <mail_weber_wang@163.com> - 2016-02-01 16:50 +0100
  RE: [PATCH] NVMe: do not touch sq door bell if nvmeq has been  suspended "Busch, Keith" <keith.busch@intel.com> - 2016-02-01 17:00 +0100
    RE: [PATCH] NVMe: do not touch sq door bell if nvmeq has been  suspended Wenbo Wang <wenbo.wang@memblaze.com> - 2016-02-01 17:20 +0100
  Re: [PATCH] NVMe: do not touch sq door bell if nvmeq has been  suspended Jens Axboe <axboe@fb.com> - 2016-02-01 18:00 +0100
    Re: [PATCH] NVMe: do not touch sq door bell if nvmeq has been  suspended Sagi Grimberg <sagig@dev.mellanox.co.il> - 2016-02-02 13:50 +0100
      Re: [PATCH] NVMe: do not touch sq door bell if nvmeq has been  suspended Keith Busch <keith.busch@intel.com> - 2016-02-02 15:30 +0100
        Re: [PATCH] NVMe: do not touch sq door bell if nvmeq has been  suspended Sagi Grimberg <sagig@dev.mellanox.co.il> - 2016-02-02 15:40 +0100
          Re: [PATCH] NVMe: do not touch sq door bell if nvmeq has been  suspended Keith Busch <keith.busch@intel.com> - 2016-02-02 15:50 +0100
            Re: [PATCH] NVMe: do not touch sq door bell if nvmeq has been  suspended Sagi Grimberg <sagig@dev.mellanox.co.il> - 2016-02-02 18:30 +0100
    Re: [PATCH] NVMe: do not touch sq door bell if nvmeq has been  suspended Keith Busch <keith.busch@intel.com> - 2016-02-02 18:30 +0100
    Re: [PATCH] NVMe: do not touch sq door bell if nvmeq has been  suspended Keith Busch <keith.busch@intel.com> - 2016-02-03 15:50 +0100
      Re: [PATCH] NVMe: do not touch sq door bell if nvmeq has been  suspended Keith Busch <keith.busch@intel.com> - 2016-02-03 17:40 +0100
        Re: [PATCH] NVMe: do not touch sq door bell if nvmeq has been  suspended Sagi Grimberg <sagig@dev.mellanox.co.il> - 2016-02-07 14:50 +0100
        Re: [PATCH] NVMe: do not touch sq door bell if nvmeq has been  suspended Keith Busch <keith.busch@intel.com> - 2016-02-08 16:10 +0100

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