From 285caad415f459f336247932b4db95a571357a02 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Thu, 14 Jan 2010 10:53:21 +0800 Subject: [PATCH] tracing/filters: Fix MATCH_FRONT_ONLY filter matching MATCH_FRONT_ONLY actually is a full matching: # ./perf record -R -f -a -e lock:lock_acquire \ --filter 'name ~rcu_*' sleep 1 # ./perf trace (no output) We should pass the length of the pattern string to strncmp(). Signed-off-by: Li Zefan LKML-Reference: <4B4E8721.5090301@cn.fujitsu.com> Acked-by: Frederic Weisbecker Signed-off-by: Steven Rostedt --- kernel/trace/trace_events_filter.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c index 50504cb..11c3973 100644 --- a/kernel/trace/trace_events_filter.c +++ b/kernel/trace/trace_events_filter.c @@ -261,7 +261,7 @@ static int regex_match_full(char *str, struct regex *r, int len) static int regex_match_front(char *str, struct regex *r, int len) { - if (strncmp(str, r->pattern, len) == 0) + if (strncmp(str, r->pattern, r->len) == 0) return 1; return 0; } -- 1.8.2.3