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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-05-24 10:18:23 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-05-24 10:18:23 -0700 |
commit | 2319be135672f6e45aa937bceaae6c2668c7867c (patch) | |
tree | 5d2210243fac4345bbb204064f9602fe9477b785 /kernel/entry | |
parent | 143a6252e1b8ab424b4b293512a97cca7295c182 (diff) | |
parent | 8491d1bdf5de152f27fc941e2dcdc4e66c950542 (diff) | |
download | lwn-2319be135672f6e45aa937bceaae6c2668c7867c.tar.gz lwn-2319be135672f6e45aa937bceaae6c2668c7867c.zip |
Merge tag 'locking-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
- rwsem cleanups & optimizations/fixes:
- Conditionally wake waiters in reader/writer slowpaths
- Always try to wake waiters in out_nolock path
- Add try_cmpxchg64() implementation, with arch optimizations - and use
it to micro-optimize sched_clock_{local,remote}()
- Various force-inlining fixes to address objdump instrumentation-check
warnings
- Add lock contention tracepoints:
lock:contention_begin
lock:contention_end
- Misc smaller fixes & cleanups
* tag 'locking-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/clock: Use try_cmpxchg64 in sched_clock_{local,remote}
locking/atomic/x86: Introduce arch_try_cmpxchg64
locking/atomic: Add generic try_cmpxchg64 support
futex: Remove a PREEMPT_RT_FULL reference.
locking/qrwlock: Change "queue rwlock" to "queued rwlock"
lockdep: Delete local_irq_enable_in_hardirq()
locking/mutex: Make contention tracepoints more consistent wrt adaptive spinning
locking: Apply contention tracepoints in the slow path
locking: Add lock contention tracepoints
locking/rwsem: Always try to wake waiters in out_nolock path
locking/rwsem: Conditionally wake waiters in reader/writer slowpaths
locking/rwsem: No need to check for handoff bit if wait queue empty
lockdep: Fix -Wunused-parameter for _THIS_IP_
x86/mm: Force-inline __phys_addr_nodebug()
x86/kvm/svm: Force-inline GHCB accessors
task_stack, x86/cea: Force-inline stack helpers
Diffstat (limited to 'kernel/entry')
-rw-r--r-- | kernel/entry/common.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/entry/common.c b/kernel/entry/common.c index 9e63923c5a0f..032f164abe7c 100644 --- a/kernel/entry/common.c +++ b/kernel/entry/common.c @@ -126,7 +126,7 @@ static __always_inline void __exit_to_user_mode(void) { instrumentation_begin(); trace_hardirqs_on_prepare(); - lockdep_hardirqs_on_prepare(CALLER_ADDR0); + lockdep_hardirqs_on_prepare(); instrumentation_end(); user_enter_irqoff(); @@ -416,7 +416,7 @@ noinstr void irqentry_exit(struct pt_regs *regs, irqentry_state_t state) instrumentation_begin(); /* Tell the tracer that IRET will enable interrupts */ trace_hardirqs_on_prepare(); - lockdep_hardirqs_on_prepare(CALLER_ADDR0); + lockdep_hardirqs_on_prepare(); instrumentation_end(); rcu_irq_exit(); lockdep_hardirqs_on(CALLER_ADDR0); @@ -465,7 +465,7 @@ void noinstr irqentry_nmi_exit(struct pt_regs *regs, irqentry_state_t irq_state) ftrace_nmi_exit(); if (irq_state.lockdep) { trace_hardirqs_on_prepare(); - lockdep_hardirqs_on_prepare(CALLER_ADDR0); + lockdep_hardirqs_on_prepare(); } instrumentation_end(); |