mirror-linux/Documentation/driver-api
Linus Torvalds 7de6b4a246 workqueue: Changes for v7.1
- New default WQ_AFFN_CACHE_SHARD affinity scope subdivides LLCs into
   smaller shards to improve scalability on machines with many CPUs per
   LLC.
 
 - Misc: system_dfl_long_wq for long unbound works, devm_alloc_workqueue()
   for device-managed allocation, sysfs exposure for ordered workqueues and
   the EFI workqueue, removal of HK_TYPE_WQ from wq_unbound_cpumask, and
   various small fixes.
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Merge tag 'wq-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

Pull workqueue updates from Tejun Heo:

 - New default WQ_AFFN_CACHE_SHARD affinity scope subdivides LLCs into
   smaller shards to improve scalability on machines with many CPUs per
   LLC

 - Misc:
    - system_dfl_long_wq for long unbound works
    - devm_alloc_workqueue() for device-managed allocation
    - sysfs exposure for ordered workqueues and the EFI workqueue
    - removal of HK_TYPE_WQ from wq_unbound_cpumask
    - various small fixes

* tag 'wq-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: (21 commits)
  workqueue: validate cpumask_first() result in llc_populate_cpu_shard_id()
  workqueue: use NR_STD_WORKER_POOLS instead of hardcoded value
  workqueue: avoid unguarded 64-bit division
  docs: workqueue: document WQ_AFFN_CACHE_SHARD affinity scope
  workqueue: add test_workqueue benchmark module
  tools/workqueue: add CACHE_SHARD support to wq_dump.py
  workqueue: set WQ_AFFN_CACHE_SHARD as the default affinity scope
  workqueue: add WQ_AFFN_CACHE_SHARD affinity scope
  workqueue: fix typo in WQ_AFFN_SMT comment
  workqueue: Remove HK_TYPE_WQ from affecting wq_unbound_cpumask
  workqueue: unlink pwqs from wq->pwqs list in alloc_and_link_pwqs() error path
  workqueue: Remove NULL wq WARN in __queue_delayed_work()
  workqueue: fix parse_affn_scope() prefix matching bug
  workqueue: devres: Add device-managed allocate workqueue
  workqueue: Add system_dfl_long_wq for long unbound works
  tools/workqueue/wq_dump.py: add NODE prefix to all node columns
  tools/workqueue/wq_dump.py: fix column alignment in node_nr/max_active section
  tools/workqueue/wq_dump.py: remove backslash separator from node_nr/max_active header
  efi: Allow to expose the workqueue via sysfs
  workqueue: Allow to expose ordered workqueues via sysfs
  ...
2026-04-15 10:32:08 -07:00
..
80211 Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
acpi docs: driver-api: fix 6 spelling typos in Documentation/driver-api 2026-03-25 12:36:02 -06:00
backlight
coco Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
crypto Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
cxl docs: driver-api: fix 6 spelling typos in Documentation/driver-api 2026-03-25 12:36:02 -06:00
dmaengine docs: driver-api: fix 6 spelling typos in Documentation/driver-api 2026-03-25 12:36:02 -06:00
driver-model workqueue: Changes for v7.1 2026-04-15 10:32:08 -07:00
early-userspace doc: early_userspace_support.rst: trivial fix: directory -> file 2026-02-23 14:52:36 -07:00
firmware Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
fpga
gpio Documentation: gpio: update the preferred method for using software node lookup 2026-04-08 15:52:26 +02:00
hte
i3c docs: driver-api: fix spelling of "buses". 2025-09-18 10:40:46 -06:00
iio docs: iio: Allow creating cross-references ABI 2025-02-18 13:42:46 -07:00
md
media [GIT PULL for v7.1] media updates 2026-04-15 08:32:10 -07:00
mei
memory-devices Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
mmc Documentation: mmc: Add mmc-test doc 2024-09-05 12:13:39 +02:00
mtd
nfc
nvdimm Documentation: btt: Unwrap bit 31-30 nested table 2025-11-07 09:06:51 -06:00
pci docs: driver-api: fix 6 spelling typos in Documentation/driver-api 2026-03-25 12:36:02 -06:00
phy docs: fix 're-use' -> 'reuse' in documentation 2026-02-02 09:54:15 -07:00
pldmfw Documentation: pldmfw: Demote library overview section 2025-11-05 11:29:30 -07:00
pm Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
rapidio
serial Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
soundwire Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
surface_aggregator Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
thermal thermal: int340x: processor_thermal: Enable slow workload type hints 2026-01-07 21:42:10 +01:00
tty docs: fix 're-use' -> 'reuse' in documentation 2026-02-02 09:54:15 -07:00
usb docs: fix 're-use' -> 'reuse' in documentation 2026-02-02 09:54:15 -07:00
virtio
xilinx Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
aperture.rst
auxiliary_bus.rst drivers/base: Remove unused auxiliary_find_device 2024-10-14 08:21:09 +02:00
basics.rst docs: Update documentation to avoid mentioning of kernel.h 2025-12-22 14:59:18 -07:00
clk.rst
component.rst
connector.rst
console.rst
devfreq.rst
device-io.rst docs: driver-api: fix spelling of "buses". 2025-09-18 10:40:46 -06:00
device_link.rst
dma-buf.rst dma-buf: Remove DMA-BUF sysfs stats 2026-01-19 19:10:01 +05:30
dpll.rst dpll: add frequency monitoring to netlink spec 2026-04-03 16:48:01 -07:00
edac.rst
eisa.rst docs: driver-api: fix spelling of "buses". 2025-09-18 10:40:46 -06:00
extcon.rst Documentation: extcon: add documentation for Extcon subsystem 2024-12-08 21:59:40 +09:00
firewire.rst firewire: core: expose kernel API to schedule work item to process isochronous context 2024-09-08 13:05:48 +09:00
frame-buffer.rst
generic-counter.rst docs: arm: generic-counter: Allow creating cross-references for ABI 2025-02-18 13:42:46 -07:00
generic_pt.rst iommupt: Documentation fixes 2025-11-07 11:12:03 +01:00
hsi.rst
hw-recoverable-errors.rst vmcoreinfo: track and log recoverable hardware errors 2025-11-27 14:24:44 -08:00
i2c.rst
index.rst Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
infiniband.rst docs: driver-api/infiniband.rst: fix Kerneldoc markup 2025-03-04 09:47:38 -07:00
infrastructure.rst driver core: add a faux bus for use when a simple device/bus is needed 2025-02-13 16:58:51 +01:00
input.rst
interconnect.rst docs: interconnect: Document consumer APIs and drop outdated text 2026-03-17 08:51:28 -06:00
io-mapping.rst
io_ordering.rst
ioctl.rst
ipmb.rst
ipmi.rst docs: driver-api: fix spelling of "buses". 2025-09-18 10:40:46 -06:00
isa.rst
libata.rst docs: driver-api: fix 6 spelling typos in Documentation/driver-api 2026-03-25 12:36:02 -06:00
mailbox.rst Documentation: mailbox: mbox_chan_ops.flush() is optional 2025-12-22 15:30:31 -07:00
men-chameleon-bus.rst
message-based.rst
misc_devices.rst
miscellaneous.rst
mtdnand.rst treewide: Update email address 2026-01-11 06:09:11 -10:00
ntb.rst Documentation: NTB: Fix typo 2025-05-19 09:04:21 -06:00
nvmem.rst nvmem: Remove unused nvmem cell table support 2025-05-21 14:28:27 +02:00
parport-lowlevel.rst Documentation: parport-lowlevel: Separate function listing code blocks 2025-11-10 12:47:36 -07:00
pin-control.rst pci-v6.18-changes 2025-10-06 10:41:03 -07:00
pps.rst Documentation: driver-api: pps: Add Intel Timed I/O PPS generator 2025-02-21 10:46:49 +01:00
ptp.rst
pwm.rst docs: pwm: Adapt Locking paragraph to reality 2025-07-07 08:39:36 +02:00
pwrseq.rst Documentation: pwrseq: Fix trivial misspellings 2024-11-22 10:36:53 -07:00
regulator.rst
reset.rst Documentation: reset: Remove reset_controller_add_lookup() 2025-11-20 10:02:37 +01:00
rfkill.rst
s390-drivers.rst
scsi.rst docs: driver-api: fix spelling of "buses". 2025-09-18 10:40:46 -06:00
slimbus.rst
sm501.rst
spi.rst docs: driver-api: fix spelling of "buses". 2025-09-18 10:40:46 -06:00
switchtec.rst
sync_file.rst
target.rst
tee.rst tee: Adapt documentation to cover recent additions 2025-12-17 18:28:28 +01:00
uio-howto.rst
vfio-mediated-device.rst
vfio-pci-device-specific-driver-acceptance.rst
vfio.rst
vme.rst
w1.rst
wbrf.rst
wmi.rst platform/wmi: Add helper functions for WMI string conversions 2026-01-20 15:47:51 +02:00
xillybus.rst
zorro.rst