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author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-16 09:22:22 +0200 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-16 09:22:22 +0200 |
commit | 58f2c391cc0560231d7636c39d31b1b26c9396b7 (patch) | |
tree | 67956eea736a8763f67be8a52bcaf0d3fe4374f4 /kernel/trace/trace_stack.c | |
parent | vmbus: add per-channel sysfs info (diff) | |
parent | Linux 4.14-rc5 (diff) | |
download | linux-dev-58f2c391cc0560231d7636c39d31b1b26c9396b7.tar.xz linux-dev-58f2c391cc0560231d7636c39d31b1b26c9396b7.zip |
Merge 4.14-rc5 into char-misc-next
We need the fixes in here to resolve merge issues and for testing.
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); } |