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| author |   Steven Rostedt (VMware) <rostedt@goodmis.org> | 2021-06-17 16:20:41 -0400 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2021-06-17 16:23:42 -0400 |
| commit | 2db7ab6b4c962e2499c86e8fe9cb1369ebaf91d1 (patch) | |
| tree | d66b1e9baef886696cd61f567342bfb22d2c3eb5 /kernel | |
| parent | tracing: Add tp_printk_stop_on_boot option (diff) | |
| download | linux-dev-2db7ab6b4c962e2499c86e8fe9cb1369ebaf91d1.tar.xz linux-dev-2db7ab6b4c962e2499c86e8fe9cb1369ebaf91d1.zip | |
tracing: Have ftrace_dump_on_oops kernel parameter take numbers
The kernel parameter for ftrace_dump_on_oops can take a single assignment.
That is, it can be:
ftrace_dump_on_oops or ftrace_dump_on_oops=orig_cpu
But the content in the sysctl file is a number.
0 for disabled
1 for ftrace_dump_on_oops (all CPUs)
2 for ftrace_dump_on_oops (orig CPU)
Allow the kernel command line to take a number as well to match the sysctl
numbers.
That is:
ftrace_dump_on_oops=1 is the same as ftrace_dump_on_oops
and
ftrace_dump_on_oops=2 is the same as ftrace_dump_on_oops=orig_cpu
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/trace/trace.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index bbc63ac5b47f..d352fb4b7709 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -197,12 +197,12 @@ __setup("ftrace=", set_cmdline_ftrace); static int __init set_ftrace_dump_on_oops(char *str) { - if (*str++ != '=' || !*str) { + if (*str++ != '=' || !*str || !strcmp("1", str)) { ftrace_dump_on_oops = DUMP_ALL; return 1; } - if (!strcmp("orig_cpu", str)) { + if (!strcmp("orig_cpu", str) || !strcmp("2", str)) { ftrace_dump_on_oops = DUMP_ORIG; return 1; } |