Messages in this thread | | | Subject | [driver-core PATCH v5 0/9] Add NUMA aware async_schedule calls | From | Alexander Duyck <> | Date | Mon, 05 Nov 2018 13:11:39 -0800 |
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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.
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 to be consistent 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 Updated patch description for patch 4 to include data on potential gains v3->v4 Added patch to consolidate use of need_parent_lock Make asynchronous driver probing explicit about use of drvdata v4->v5 Added patch to move async_synchronize_full to address deadlock Added bit async_probe to act as mutex for probe/remove calls Added back nvdimm patch as code it relies on is now in Linus's tree Incorporated review comments on parent & device locking consolidation Rebased on latest linux-next
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Alexander Duyck (9): workqueue: Provide queue_work_node to queue work near a given NUMA node async: Add support for queueing on specific NUMA node device core: Consolidate locking and unlocking of parent and device driver core: Move async_synchronize_full call driver core: Establish clear order of operations for deferred probe and remove 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 libnvdimm: Schedule device registration on node local to the device
drivers/base/base.h | 2 drivers/base/bus.c | 46 +------- drivers/base/dd.c | 249 +++++++++++++++++++++++++++++++++------------ drivers/base/power/main.c | 12 +- drivers/nvdimm/bus.c | 11 +- include/linux/async.h | 84 +++++++++++++++ include/linux/device.h | 35 +++++- include/linux/workqueue.h | 2 kernel/async.c | 53 +++++----- kernel/workqueue.c | 84 +++++++++++++++ 10 files changed, 432 insertions(+), 146 deletions(-)
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