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

Hi David, > > 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 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(-) > > > > [1] 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 :(