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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-09 09:02:35 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-09 09:02:35 +0200 |
| commit | 1236d6bb6e19fc72ffc6bbcdeb1bfefe450e54ee (patch) | |
| tree | 47da3feee8e263e8c9352c85cf518e624be3c211 /kernel/trace/trace_stack.c | |
| parent | staging: irda: au1k_ir.c fix warning: Prefer [subsystem eg: netdev]_info([sub... (diff) | |
| parent | Linux 4.14-rc4 (diff) | |
| download | linux-1236d6bb6e19fc72ffc6bbcdeb1bfefe450e54ee.tar.gz linux-1236d6bb6e19fc72ffc6bbcdeb1bfefe450e54ee.zip | |
Merge 4.14-rc4 into staging-next
We want the staging/iio fixes in here as well to handle merge issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/trace/trace_stack.c')
| -rw-r--r-- | kernel/trace/trace_stack.c | 15 |
1 files changed, 0 insertions, 15 deletions
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c index a4df67cbc711..49cb41412eec 100644 --- a/kernel/trace/trace_stack.c +++ b/kernel/trace/trace_stack.c @@ -96,23 +96,9 @@ check_stack(unsigned long ip, unsigned long *stack) if (in_nmi()) return; - /* - * There's a slight chance that we are tracing inside the - * RCU infrastructure, and rcu_irq_enter() will not work - * as expected. - */ - if (unlikely(rcu_irq_enter_disabled())) - return; - local_irq_save(flags); arch_spin_lock(&stack_trace_max_lock); - /* - * RCU may not be watching, make it see us. - * The stack trace code uses rcu_sched. - */ - rcu_irq_enter(); - /* In case another CPU set the tracer_frame on us */ if (unlikely(!frame_size)) this_size -= tracer_frame; @@ -205,7 +191,6 @@ check_stack(unsigned long ip, unsigned long *stack) } out: - rcu_irq_exit(); arch_spin_unlock(&stack_trace_max_lock); local_irq_restore(flags); } |