summaryrefslogtreecommitdiff
path: root/kernel/trace/trace.c
diff options
context:
space:
mode:
authorSteven Rostedt (VMware) <rostedt@goodmis.org>2021-06-17 16:20:41 -0400
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2021-06-17 16:23:42 -0400
commit2db7ab6b4c962e2499c86e8fe9cb1369ebaf91d1 (patch)
treed66b1e9baef886696cd61f567342bfb22d2c3eb5 /kernel/trace/trace.c
parentf38601368f4a0c2a9f859511768dc3957e2e1769 (diff)
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/trace/trace.c')
-rw-r--r--kernel/trace/trace.c4
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;
}