selftests/ftrace: Add some missing glob checks

[ Upstream commit 97fe22a ] Al Viro discovered a bug in the glob ftrace filtering code where "*a*b" is treated the same as "a*b", and functions that would be selected by "*a*b" but not "a*b" are not selected with "*a*b". Add tests for patterns "*a*b" and "a*b*" to the glob selftest. Link: http://lkml.kernel.org/r/[email protected] Cc: Shuah Khan <[email protected]> Acked-by: Masami Hiramatsu <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]> Signed-off-by: Sasha Levin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
mhuangwm · Apr 26, 2018 · c5ce9e5 · c5ce9e5
1 parent ae9c78a
commit c5ce9e5
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc
@@ -29,6 +29,12 @@ ftrace_filter_check '*schedule*' '^.*schedule.*$'
 # filter by *, end match
 ftrace_filter_check 'schedule*' '^schedule.*$'
 
+# filter by *mid*end
+ftrace_filter_check '*aw*lock' '.*aw.*lock$'
+
+# filter by start*mid*
+ftrace_filter_check 'mutex*try*' '^mutex.*try.*'
+
 # Advanced full-glob matching feature is recently supported.
 # Skip the tests if we are sure the kernel does not support it.
 if grep -q 'accepts: .* glob-matching-pattern' README ; then