[PATCH 0/2] Asynchronous device shutdown
keith.busch at intel.com
Thu May 8 11:07:32 PDT 2014
Device shutdown synchronization was recently reverted due to complications
from unrelated 'async_schedule's holding up shutdown forever and the
fact that no device driver was making use of the capability anyway.
I would like to make use of this capability though; I'm told by some
vendors that devices I develop drivers for may take a while to safely
shutdown and there might be a lot of these devices in a machine, so we
would benefit from letting this happen in parallel.
This patch set adds a slightly different shutdown synchronization using
a new domain, and I've added an implementation to the nvm-express driver
here so there's at least one user, assuming this is acceptable.
Keith Busch (2):
driver-core: allow asynchronous device shutdown
NVMe: Complete shutdown asynchronously
drivers/base/core.c | 4 ++++
drivers/block/nvme-core.c | 28 ++++++++++++++++++++++++++--
include/linux/device.h | 1 +
include/linux/nvme.h | 1 +
4 files changed, 32 insertions(+), 2 deletions(-)
More information about the Linux-nvme