diff options
| author | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2018-11-18 17:33:17 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-05 19:32:10 +0100 |
| commit | ef9326a145cd79c867bd84a95b837f8a60499068 (patch) | |
| tree | af451d6323a37120c3f83e50bb14e6d05825ef7e /arch/s390/kvm/intercept.c | |
| parent | 84d2023c14ea5a5a8a0f361a1f1aa5d0c225d66e (diff) | |
| download | linux-stable-ef9326a145cd79c867bd84a95b837f8a60499068.tar.gz linux-stable-ef9326a145cd79c867bd84a95b837f8a60499068.tar.bz2 linux-stable-ef9326a145cd79c867bd84a95b837f8a60499068.zip | |
s390/function_graph: Simplify with function_graph_enter()
commit 18588e1487b19e45bd90bd55ec8d3a1d44f3257f upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/s390/kvm/intercept.c')
0 files changed, 0 insertions, 0 deletions