Messages in this thread | | | Subject | [driver-core PATCH v3 0/5] Add NUMA aware async_schedule calls | From | Alexander Duyck <> | Date | Thu, 11 Oct 2018 15:09:16 -0700 |
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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.
Ideally this solution should be agnostic enough that it can be used for any given device type. So ideally we shouldn't need to implement one-off solutions for each bus as has already kind of happened in the PCI tree with pci_call_probe.
RFC->v1: Dropped nvdimm patch to submit later. It relies on code in libnvdimm development tree. Simplified queue_work_near to just convert node into a CPU. Split up drivers core and PM core patches. v1->v2: Renamed queue_work_near to queue_work_node Added WARN_ON_ONCE if we use queue_work_node with per-cpu workqueue v2->v3: Added Acked-by for queue_work_node patch Continued rename from _near to _node for consistency with queue_work_node Renamed async_schedule_near_domain to async_schedule_node_domain Renamed async_schedule_near to async_schedule_node Added kerneldoc for new async_schedule_XXX functions Added nvdimm boot time improvement data to description of patch 4 ---
Alexander Duyck (5): workqueue: Provide queue_work_node 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: Attach devices on CPU local to device node PM core: Use new async_schedule_dev command
drivers/base/bus.c | 23 ++---------- drivers/base/dd.c | 44 +++++++++++++++++++++++- drivers/base/power/main.c | 12 +++--- include/linux/async.h | 84 +++++++++++++++++++++++++++++++++++++++++++-- include/linux/workqueue.h | 2 + kernel/async.c | 53 ++++++++++++++++------------ kernel/workqueue.c | 84 +++++++++++++++++++++++++++++++++++++++++++++ 7 files changed, 248 insertions(+), 54 deletions(-)
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