Re: [RFC v2 0/2] virtio-pmem: Asynchronous flush

[Pankaj Gupta]

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
>