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08 September 2024, 02:26:05 UTC
Revision b1b35f2e218a5b57d03bbc3b0667d5064570dc60 authored by Steven Rostedt (VMware) on 20 November 2018, 17:51:07 UTC, committed by Steven Rostedt (VMware) on 28 November 2018, 01:31:55 UTC 
function_graph: Have profiler use curr_ret_stack and not depth
 
The profiler uses trace->depth to find its entry on the ret_stack, but the
depth may not match the actual location of where its entry is (if an
interrupt were to preempt the processing of the profiler for another
function, the depth and the curr_ret_stack will be different).

Have it use the curr_ret_stack as the index to find its ret_stack entry
instead of using the depth variable, as that is no longer guaranteed to be
the same.

Cc: stable@kernel.org
Fixes: 03274a3ffb449 ("tracing/fgraph: Adjust fgraph depth before calling trace return callback")
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
1 parent 7c6ea35
History
Tip revision: b1b35f2e218a5b57d03bbc3b0667d5064570dc60 authored by Steven Rostedt (VMware) on 20 November 2018, 17:51:07 UTC
function_graph: Have profiler use curr_ret_stack and not depth
Tip revision: b1b35f2
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