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(-) -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
