Commit-ID: 285caad415f459f336247932b4db95a571357a02
Gitweb: http://git.kernel.org/tip/285caad415f459f336247932b4db95a571357a02
Author: Li Zefan <lizf@xxxxxxxxxxxxxx>
AuthorDate: Thu, 14 Jan 2010 10:53:21 +0800
Committer: Steven Rostedt <rostedt@xxxxxxxxxxx>
CommitDate: Thu, 14 Jan 2010 22:38:05 -0500
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 <lizf@xxxxxxxxxxxxxx>
LKML-Reference: <4B4E8721.5090301@xxxxxxxxxxxxxx>
Acked-by: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
kernel/trace/trace_events_filter.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
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;
}
--
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