Thread (40 messages) 40 messages, 2 authors, 2018-02-08

Re: [PATCH v9 35/37] tracing: Increase trace_recursive_lock() limit for synthetic events

From: Tom Zanussi <hidden>
Date: 2018-02-08 04:34:27
Also in: lkml

Hi Steve,

On Wed, 2018-02-07 at 20:55 -0500, Steven Rostedt wrote:
On Mon, 15 Jan 2018 20:52:09 -0600
Tom Zanussi [off-list ref] wrote:
quoted
 static __always_inline int
 trace_recursive_lock(struct ring_buffer_per_cpu *cpu_buffer)
 {
-	if (cpu_buffer->current_context >= 4)
+	if (cpu_buffer->current_context >= 6)
I can't apply this patch because the new context counting broke tracing
suspend and resume because it depended on the context recursive locking.

Link: http://lkml.kernel.org/r/20180116020051.776011914@goodmis.org

I added the attached two patches which appear to do the job.

Let me know what you think.
Yeah, these look good and seem to do the trick - I did some quick
testing and didn't see any problems.

Thanks,

Tom
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