> Jeff reported preflush order issue with the existing
> of virtio pmem preflush. Dan suggested 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 from the submitting thread POV.
> Submitting this patch series for feeback and is in WIP. I have
> done basic testing and currently doing more testing.
> Pankaj Gupta (2):
> pmem: make nvdimm_flush asynchronous
> virtio_pmem: Async virtio-pmem flush
> drivers/nvdimm/nd_virtio.c | 66 ++++++++++++++++++++++++++----------
> drivers/nvdimm/pmem.c | 15 ++++----
> drivers/nvdimm/region_devs.c | 3 +-
> drivers/nvdimm/virtio_pmem.c | 9 +++++
> drivers/nvdimm/virtio_pmem.h | 12 +++++++
> 5 files changed, 78 insertions(+), 27 deletions(-)
>  https://marc.info/?l=linux-kernel&m=157446316409937&w=2
Just wondering, was there any follow up of this or are we still waiting
for feedback? :)
Thank you for bringing this up.
My apologies I could not followup on this. I have another version in my local
tree but could not post it as I was not sure if I solved the problem
correctly. I will
clean it up and post for feedback as soon as I can.
P.S: Due to serious personal/family health issues I am not able to
devote much time
on this with other professional commitments. I feel bad that I have
this unfinished task.
Just in last one year things have not been stable for me & my family
and still not getting :(