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- Core locking & atomics:
- Convert all architectures to ARCH_ATOMIC: move every
architecture to ARCH_ATOMIC, then get rid of ARCH_ATOMIC
and all the transitory facilities and #ifdefs.
Much reduction in complexity from that series:
63 files changed, 756 insertions(+), 4094 deletions(-)
- Self-test enhancements
- Futexes:
- Add the new FUTEX_LOCK_PI2 ABI, which is a variant that
doesn't set FLAGS_CLOCKRT (.e. uses CLOCK_MONOTONIC).
[ The temptation to repurpose FUTEX_LOCK_PI's implicit
setting of FLAGS_CLOCKRT & invert the flag's meaning
to avoid having to introduce a new variant was
resisted successfully. ]
- Enhance futex self-tests
- Lockdep:
- Fix dependency path printouts
- Optimize trace saving
- Broaden & fix wait-context checks
- Misc cleanups and fixes.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
- Core locking & atomics:
- Convert all architectures to ARCH_ATOMIC: move every architecture
to ARCH_ATOMIC, then get rid of ARCH_ATOMIC and all the
transitory facilities and #ifdefs.
Much reduction in complexity from that series:
63 files changed, 756 insertions(+), 4094 deletions(-)
- Self-test enhancements
- Futexes:
- Add the new FUTEX_LOCK_PI2 ABI, which is a variant that doesn't
set FLAGS_CLOCKRT (.e. uses CLOCK_MONOTONIC).
[ The temptation to repurpose FUTEX_LOCK_PI's implicit setting of
FLAGS_CLOCKRT & invert the flag's meaning to avoid having to
introduce a new variant was resisted successfully. ]
- Enhance futex self-tests
- Lockdep:
- Fix dependency path printouts
- Optimize trace saving
- Broaden & fix wait-context checks
- Misc cleanups and fixes.
* tag 'locking-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits)
locking/lockdep: Correct the description error for check_redundant()
futex: Provide FUTEX_LOCK_PI2 to support clock selection
futex: Prepare futex_lock_pi() for runtime clock selection
lockdep/selftest: Remove wait-type RCU_CALLBACK tests
lockdep/selftests: Fix selftests vs PROVE_RAW_LOCK_NESTING
lockdep: Fix wait-type for empty stack
locking/selftests: Add a selftest for check_irq_usage()
lockding/lockdep: Avoid to find wrong lock dep path in check_irq_usage()
locking/lockdep: Remove the unnecessary trace saving
locking/lockdep: Fix the dep path printing for backwards BFS
selftests: futex: Add futex compare requeue test
selftests: futex: Add futex wait test
seqlock: Remove trailing semicolon in macros
locking/lockdep: Reduce LOCKDEP dependency list
locking/lockdep,doc: Improve readability of the block matrix
locking/atomics: atomic-instrumented: simplify ifdeffery
locking/atomic: delete !ARCH_ATOMIC remnants
locking/atomic: xtensa: move to ARCH_ATOMIC
locking/atomic: sparc: move to ARCH_ATOMIC
locking/atomic: sh: move to ARCH_ATOMIC
...
a15286c63d