mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-01-12 01:20:14 +00:00
67da125e30
This pull request contains the following branches, non-octopus merged:
Documentation updates:
- Update whatisRCU.rst and checklist.rst for recent RCU API additions.
- Fix RCU documentation formatting and typos.
- Replace dead Ottawa Linux Symposium links in RTFP.txt.
Miscellaneous RCU updates:
- Document that rcu_barrier() hurries RCU_LAZY callbacks.
- Remove redundant interrupt disabling from
rcu_preempt_deferred_qs_handler().
- Move list_for_each_rcu from list.h to rculist.h, and adjust the
include directive in kernel/cgroup/dmem.c accordingly.
- Make initial set of changes to accommodate upcoming system_percpu_wq
changes.
SRCU updates:
- Create an srcu_read_lock_fast_notrace() for eventual use in tracing,
including adding guards.
- Document the reliance on per-CPU operations as implicit RCU readers
in __srcu_read_{,un}lock_fast().
- Document the srcu_flip() function's memory-barrier D's relationship
to SRCU-fast readers.
- Remove a redundant preempt_disable() and preempt_enable() pair from
srcu_gp_start_if_needed().
Torture-test updates:
- Fix jitter.sh spin time so that it actually varies as advertised.
It is still quite coarse-grained, but at least it does now vary.
- Update torture.sh help text to include the not-so-new --do-normal
parameter, which permits (for example) testing KCSAN kernels without
doing non-debug kernels.
- Fix a number of false-positive diagnostics that were being triggered
by rcutorture starting before boot completed. Running multiple
near-CPU-bound rcutorture processes when there is only the boot CPU
is after all a bit excessive.
- Substitute kcalloc() for kzalloc().
- Remove a redundant kfree() and NULL out kfree()ed objects.
-----BEGIN PGP SIGNATURE-----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=FEf1
-----END PGP SIGNATURE-----
Merge tag 'rcu.2025.09.26a' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux
Pull RCU updates from Paul McKenney:
"Documentation updates:
- Update whatisRCU.rst and checklist.rst for recent RCU API additions
- Fix RCU documentation formatting and typos
- Replace dead Ottawa Linux Symposium links in RTFP.txt
Miscellaneous RCU updates:
- Document that rcu_barrier() hurries RCU_LAZY callbacks
- Remove redundant interrupt disabling from
rcu_preempt_deferred_qs_handler()
- Move list_for_each_rcu from list.h to rculist.h, and adjust the
include directive in kernel/cgroup/dmem.c accordingly
- Make initial set of changes to accommodate upcoming
system_percpu_wq changes
SRCU updates:
- Create an srcu_read_lock_fast_notrace() for eventual use in
tracing, including adding guards
- Document the reliance on per-CPU operations as implicit RCU readers
in __srcu_read_{,un}lock_fast()
- Document the srcu_flip() function's memory-barrier D's relationship
to SRCU-fast readers
- Remove a redundant preempt_disable() and preempt_enable() pair from
srcu_gp_start_if_needed()
Torture-test updates:
- Fix jitter.sh spin time so that it actually varies as advertised.
It is still quite coarse-grained, but at least it does now vary
- Update torture.sh help text to include the not-so-new --do-normal
parameter, which permits (for example) testing KCSAN kernels
without doing non-debug kernels
- Fix a number of false-positive diagnostics that were being
triggered by rcutorture starting before boot completed. Running
multiple near-CPU-bound rcutorture processes when there is only the
boot CPU is after all a bit excessive
- Substitute kcalloc() for kzalloc()
- Remove a redundant kfree() and NULL out kfree()ed objects"
* tag 'rcu.2025.09.26a' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux: (31 commits)
rcu: WQ_UNBOUND added to sync_wq workqueue
rcu: WQ_PERCPU added to alloc_workqueue users
rcu: replace use of system_wq with system_percpu_wq
refperf: Set reader_tasks to NULL after kfree()
refperf: Remove redundant kfree() after torture_stop_kthread()
srcu/tiny: Remove preempt_disable/enable() in srcu_gp_start_if_needed()
srcu: Document srcu_flip() memory-barrier D relation to SRCU-fast
srcu: Document __srcu_read_{,un}lock_fast() implicit RCU readers
rculist: move list_for_each_rcu() to where it belongs
refscale: Use kcalloc() instead of kzalloc()
rcutorture: Use kcalloc() instead of kzalloc()
docs: rcu: Replace multiple dead OLS links in RTFP.txt
doc: Fix typo in RCU's torture.rst documentation
Documentation: RCU: Retitle toctree index
Documentation: RCU: Reduce toctree depth
Documentation: RCU: Wrap kvm-remote.sh rerun snippet in literal code block
rcu: docs: Requirements.rst: Abide by conventions of kernel documentation
doc: Add RCU guards to checklist.rst
doc: Update whatisRCU.rst for recent RCU API additions
rcutorture: Delay forward-progress testing until boot completes
...