selftests/ftrace: Add some missing glob checks

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/20180127170748.GF13338@ZenIV.linux.org.uk

Cc: Shuah Khan <shuah@kernel.org>
Acked-by: default avatarMasami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
parent 0787ce33
......@@ -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
......
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