[RFC workqueue/driver-core PATCH 0/5] Add NUMA aware async_schedule calls

Alexander Duyck
2018-09-26T21:51:36Z

This patch set provides functionality that will help to improve the
locality of the async_schedule calls used to provide deferred
initialization.

This patch set originally started out with me focused on just the one call
to async_schedule_domain in the nvdimm tree that was being used to
defer the device_add call however after doing some digging I realized the
scope of this was much broader than I had originally planned. As such I
went through and reworked the underlying infrastructure down to replacing
the queue_work call itself with a function of my own and opted to try and
provide a NUMA aware solution that would work for a broader audience.

I am submitting this an RFC to figure out just how far off I am from where
I need to be on this patch set and to determine which tree I should
ultimately be submitting this to.

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Alexander Duyck (5):
workqueue: Provide queue_work_near to queue work near a given NUMA node
async: Add support for queueing on specific NUMA node
driver core: Probe devices asynchronously instead of the driver
driver core: Use new async_schedule_dev command
nvdimm: Schedule device registration on node local to the device

drivers/base/bus.c | 23 +-------
drivers/base/dd.c | 44 +++++++++++++++
drivers/base/power/main.c | 12 ++--
drivers/nvdimm/bus.c | 11 +++-
include/linux/async.h | 27 ++++++++-
include/linux/workqueue.h | 2 +
kernel/async.c | 62 ++++++++++++++++------
kernel/workqueue.c | 129 ++++++++++++++++++++++++++++++++++++++++++++-
8 files changed, 258 insertions(+), 52 deletions(-)

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