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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-05-05 12:56:55 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-05-05 12:56:55 -0700 |
| commit | b115d85a9584c98f9a7dec209d835462aa1adc09 (patch) | |
| tree | 332af6e2fafef47b9dc9891282b422eb5dcc5f3f /Documentation/trace | |
| parent | d5ed10bb80bb376501cb56015a47457647efaabf (diff) | |
| parent | ec570320b09f76d52819e60abdccf372658216b6 (diff) | |
| download | linux-stable-b115d85a9584c98f9a7dec209d835462aa1adc09.tar.gz linux-stable-b115d85a9584c98f9a7dec209d835462aa1adc09.tar.bz2 linux-stable-b115d85a9584c98f9a7dec209d835462aa1adc09.zip | |
Merge tag 'locking-core-2023-05-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
- Introduce local{,64}_try_cmpxchg() - a slightly more optimal
primitive, which will be used in perf events ring-buffer code
- Simplify/modify rwsems on PREEMPT_RT, to address writer starvation
- Misc cleanups/fixes
* tag 'locking-core-2023-05-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/atomic: Correct (cmp)xchg() instrumentation
locking/x86: Define arch_try_cmpxchg_local()
locking/arch: Wire up local_try_cmpxchg()
locking/generic: Wire up local{,64}_try_cmpxchg()
locking/atomic: Add generic try_cmpxchg{,64}_local() support
locking/rwbase: Mitigate indefinite writer starvation
locking/arch: Rename all internal __xchg() names to __arch_xchg()
Diffstat (limited to 'Documentation/trace')
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