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From:   Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Date:   Sat, 16 Oct 2021 10:23:08 +0200
Message-ID: <CAM9Jb+i5L4D130psUirHRaHbZc=ODrzOp_OQGxpFfsMXbt3eRg@mail.gmail.com>
Subject: Re: [RFC v2 0/2] virtio-pmem: Asynchronous flush
To:     Linux NVDIMM <nvdimm@lists.linux.dev>,
        LKML <linux-kernel@vger.kernel.org>
Cc:     Dan Williams <dan.j.williams@intel.com>,
        jmoyer <jmoyer@redhat.com>, David Hildenbrand <david@redhat.com>,
        "Michael S . Tsirkin" <mst@redhat.com>,
        Cornelia Huck <cohuck@redhat.com>,
        Vishal Verma <vishal.l.verma@intel.com>,
        Dave Jiang <dave.jiang@intel.com>,
        Ira Weiny <ira.weiny@intel.com>,
        Pankaj Gupta <pankaj.gupta@ionos.com>
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Friendly ping!

Thanks,
Pankaj

On Thu, 19 Aug 2021 at 13:08, Pankaj Gupta <pankaj.gupta.linux@gmail.com> wrote:
>
> Gentle ping.
>
> >
> >  Jeff reported preflush order issue with the existing implementation
> >  of virtio pmem preflush. Dan suggested[1] to implement asynchronous flush
> >  for virtio pmem using work queue as done in md/RAID. This patch series
> >  intends to solve the preflush ordering issue and also makes the flush
> >  asynchronous for the submitting thread.
> >
> >  Submitting this patch series for review. Sorry, It took me long time to
> >  come back to this due to some personal reasons.
> >
> >  RFC v1 -> RFC v2
> >  - More testing and bug fix.
> >
> >  [1] https://marc.info/?l=linux-kernel&m=157446316409937&w=2
> >
> > Pankaj Gupta (2):
> >   virtio-pmem: Async virtio-pmem flush
> >   pmem: enable pmem_submit_bio for asynchronous flush
> >
> >  drivers/nvdimm/nd_virtio.c   | 72 ++++++++++++++++++++++++++++--------
> >  drivers/nvdimm/pmem.c        | 17 ++++++---
> >  drivers/nvdimm/virtio_pmem.c | 10 ++++-
> >  drivers/nvdimm/virtio_pmem.h | 14 +++++++
> >  4 files changed, 91 insertions(+), 22 deletions(-)
> >
> > --
> > 2.25.1
> >