diff options
| author | Bo Yan <byan@nvidia.com> | 2017-09-18 10:03:35 -0700 |
|---|---|---|
| committer | Moyster <oysterized@gmail.com> | 2017-11-06 15:34:22 +0100 |
| commit | 4bdf99d9cc39a5f18219268b13c8818d1edd9515 (patch) | |
| tree | b4c247c2e951790f6ff066674593e713e61c888f /kernel/stacktrace.c | |
| parent | f75c4a7ccfe77ccbc3746c424664a4cc101400dd (diff) | |
tracing: Erase irqsoff trace with empty write
commit 8dd33bcb7050dd6f8c1432732f930932c9d3a33e upstream.
One convenient way to erase trace is "echo > trace". However, this
is currently broken if the current tracer is irqsoff tracer. This
is because irqsoff tracer use max_buffer as the default trace
buffer.
Set the max_buffer as the one to be cleared when it's the trace
buffer currently in use.
Link: http://lkml.kernel.org/r/1505754215-29411-1-git-send-email-byan@nvidia.com
Cc: <mingo@redhat.com>
Cc: stable@vger.kernel.org
Fixes: 4acd4d00f ("tracing: give easy way to clear trace buffer")
Signed-off-by: Bo Yan <byan@nvidia.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Diffstat (limited to 'kernel/stacktrace.c')
0 files changed, 0 insertions, 0 deletions