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b115d85a95
- 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.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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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()
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| .. | ||
| asm-offsets.h | ||
| asm-uaccess.h | ||
| asmmacro.h | ||
| atomic.h | ||
| barrier.h | ||
| bitops.h | ||
| bootparam.h | ||
| bugs.h | ||
| cache.h | ||
| cacheasm.h | ||
| cacheflush.h | ||
| checksum.h | ||
| cmpxchg.h | ||
| coprocessor.h | ||
| core.h | ||
| current.h | ||
| delay.h | ||
| dma.h | ||
| elf.h | ||
| fixmap.h | ||
| flat.h | ||
| ftrace.h | ||
| futex.h | ||
| highmem.h | ||
| hw_breakpoint.h | ||
| initialize_mmu.h | ||
| io.h | ||
| irq.h | ||
| irqflags.h | ||
| jump_label.h | ||
| kasan.h | ||
| Kbuild | ||
| kmem_layout.h | ||
| linkage.h | ||
| mmu_context.h | ||
| mmu.h | ||
| mxregs.h | ||
| nommu_context.h | ||
| page.h | ||
| pci-bridge.h | ||
| pci.h | ||
| perf_event.h | ||
| pgalloc.h | ||
| pgtable.h | ||
| platform.h | ||
| processor.h | ||
| ptrace.h | ||
| regs.h | ||
| seccomp.h | ||
| sections.h | ||
| serial.h | ||
| shmparam.h | ||
| signal.h | ||
| smp.h | ||
| spinlock_types.h | ||
| spinlock.h | ||
| stackprotector.h | ||
| stacktrace.h | ||
| string.h | ||
| switch_to.h | ||
| syscall.h | ||
| sysmem.h | ||
| thread_info.h | ||
| timex.h | ||
| tlb.h | ||
| tlbflush.h | ||
| traps.h | ||
| uaccess.h | ||
| ucontext.h | ||
| unistd.h | ||
| vectors.h | ||
| vermagic.h | ||
| vmalloc.h | ||