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| author | Masami Hiramatsu <mhiramat@kernel.org> | 2017-09-19 19:01:40 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-09 18:42:41 +0100 |
| commit | 8633eec0ee08d6dd4148941bba4ac2b4d918826b (patch) | |
| tree | 4342ee97f7f1671f0cda2d9986aa32ad0dfe9179 /tools/perf/scripts/python | |
| parent | 7317cb116754947d459bf709e4dccad31baa64bb (diff) | |
kprobes/x86: Disable preemption in ftrace-based jprobes
[ Upstream commit 5bb4fc2d8641219732eb2bb654206775a4219aca ]
Disable preemption in ftrace-based jprobe handlers as
described in Documentation/kprobes.txt:
"Probe handlers are run with preemption disabled."
This will fix jprobes behavior when CONFIG_PREEMPT=y.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E . McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/150581530024.32348.9863783558598926771.stgit@devbox
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions