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tracing: Remove outdated ring buffer comment

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The comment about ring buffer's organization is outdated and the code sits
elsewhere, remove the comment.
Link: http://lkml.kernel.org/r/20170217041058.23904-1-joelaf@google.com

Cc: Ingo Molnar <mingo@redhat.com>

Signed-off-by: Joel Fernandes <joelaf@google.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Joel Fernandes 2017-02-16 20:10:58 -08:00 committed by Steven Rostedt (VMware)
parent bef5da6059
commit 67d04bb2bc
1 changed files with 2 additions and 10 deletions
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kernel/trace/trace.c
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@ -260,16 +260,8 @@ unsigned long long ns2usecs(u64 nsec)
TRACE_ITER_EVENT_FORK TRACE_ITER_EVENT_FORK
/* /*
* The global_trace is the descriptor that holds the tracing * The global_trace is the descriptor that holds the top-level tracing
* buffers for the live tracing. For each CPU, it contains * buffers for the live tracing.
* a link list of pages that will store trace entries. The
* page descriptor of the pages in the memory is used to hold
* the link list by linking the lru item in the page descriptor
* to each of the pages in the buffer per CPU.
*
* For each active CPU there is a data field that holds the
* pages for the buffer for that CPU. Each CPU has the same number
* of pages allocated for its buffer.
*/ */
static struct trace_array global_trace = { static struct trace_array global_trace = {
.trace_flags = TRACE_DEFAULT_FLAGS, .trace_flags = TRACE_DEFAULT_FLAGS,