diff options
| author | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2018-11-19 01:33:17 +0300 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2018-11-28 04:31:30 +0300 |
| commit | 18588e1487b19e45bd90bd55ec8d3a1d44f3257f (patch) | |
| tree | a71093c78f7fd699657faa3e4ec27d08da79eb48 /kernel/trace/trace_functions_graph.c | |
| parent | e949b6db51dc172a35c962bc4414ca148315fe21 (diff) | |
| download | linux-18588e1487b19e45bd90bd55ec8d3a1d44f3257f.tar.xz | |
s390/function_graph: Simplify with function_graph_enter()
The function_graph_enter() function does the work of calling the function
graph hook function and the management of the shadow stack, simplifying the
work done in the architecture dependent prepare_ftrace_return().
Have s390 use the new code, and remove the shadow stack management as well as
having to set up the trace structure.
This is needed to prepare for a fix of a design bug on how the curr_ret_stack
is used.
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Julian Wiedmann <jwi@linux.ibm.com>
Cc: linux-s390@vger.kernel.org
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>
Diffstat (limited to 'kernel/trace/trace_functions_graph.c')
0 files changed, 0 insertions, 0 deletions