diff options
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/ftrace.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 0118979e211..b532e4a68c7 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -355,20 +355,26 @@ __ftrace_replace_code(struct dyn_ftrace *rec, * If this record is set not to trace then * do nothing. * + * If this record is set not to trace and + * it is enabled then disable it. + * * If this record is not set to be filtered and * it is enabled, disable it. */ - fl = rec->flags & (FTRACE_FL_FILTER | FTRACE_FL_ENABLED); + + fl = rec->flags & (FTRACE_FL_FILTER | FTRACE_FL_NOTRACE | + FTRACE_FL_ENABLED); if ((fl == (FTRACE_FL_FILTER | FTRACE_FL_ENABLED)) || - (fl == 0) || (rec->flags & FTRACE_FL_NOTRACE)) + (fl == (FTRACE_FL_FILTER | FTRACE_FL_NOTRACE)) || + !fl || (fl == FTRACE_FL_NOTRACE)) return 0; /* * If it is enabled disable it, * otherwise enable it! */ - if (fl == FTRACE_FL_ENABLED) { + if (fl & FTRACE_FL_ENABLED) { /* swap new and old */ new = old; old = ftrace_call_replace(ip, FTRACE_ADDR); |