Hi, These patches are supporting separate vwc attr for each namespace. I found that the number 2 and 3 patch are conflict with Matias Bjørling's patch which implement to supporting rotational device, this is the first time this happend to me, I dont know how to handle this, so there is a "RFC" tag in tittle, waiting for the solution. Guixin Liu (3): nvme: check ns's volatile write cache not present nvme: query independent identify ns by default nvmet: report ns's vwc not present drivers/nvme/host/core.c | 11 +++++----- drivers/nvme/target/admin-cmd.c | 36 +++++++++++++++++++++++++++++++++ include/linux/nvme.h | 1 + 3 files changed, 43 insertions(+), 5 deletions(-) -- 2.43.0