linux-kernel - [RFC workqueue/driver-core PATCH 0/5] Add NUMA aware async

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Date:   Wed, 26 Sep 2018 14:51:32 -0700
From:   Alexander Duyck <alexander.h.duyck@...ux.intel.com>
To:     linux-nvdimm@...ts.01.org, gregkh@...uxfoundation.org,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        tj@...nel.org, akpm@...ux-foundation.org
Cc:     len.brown@...el.com, dave.jiang@...el.com, rafael@...nel.org,
        vishal.l.verma@...el.com, jiangshanlai@...il.com, pavel@....cz,
        zwisler@...nel.org, dan.j.williams@...el.com
Subject: [RFC workqueue/driver-core PATCH 0/5] Add NUMA aware async_schedule
 calls

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.

---

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(-)

--