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| author | Li Zefan <lizf@cn.fujitsu.com> | 2010-01-14 10:53:41 +0800 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2010-01-14 22:38:07 -0500 |
| commit | a3291c14ecf0a995e30d993b7f2cae031de98727 (patch) | |
| tree | 46b0ed65d437fdffba57866af1ce51d0d15a7673 /kernel | |
| parent | 285caad415f459f336247932b4db95a571357a02 (diff) | |
| download | linux-a3291c14ecf0a995e30d993b7f2cae031de98727.tar.gz linux-a3291c14ecf0a995e30d993b7f2cae031de98727.tar.bz2 linux-a3291c14ecf0a995e30d993b7f2cae031de98727.zip | |
tracing/filters: Fix MATCH_END_ONLY filter matching
For '*foo' pattern, we should allow any string ending with
'foo', but event filtering incorrectly disallows strings
like bar_foo_foo:
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4B4E8735.6070604@cn.fujitsu.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/trace/trace_events_filter.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c index 11c3973e6552..49e44dd17851 100644 --- a/kernel/trace/trace_events_filter.c +++ b/kernel/trace/trace_events_filter.c @@ -275,9 +275,10 @@ static int regex_match_middle(char *str, struct regex *r, int len) static int regex_match_end(char *str, struct regex *r, int len) { - char *ptr = strstr(str, r->pattern); + int strlen = len - 1; - if (ptr && (ptr[r->len] == 0)) + if (strlen >= r->len && + memcmp(str + strlen - r->len, r->pattern, r->len) == 0) return 1; return 0; } |