Commit-ID: 21316ac6803d4a1aadd74b896db8d60a92cd1140
Gitweb: https://git.kernel.org/tip/21316ac6803d4a1aadd74b896db8d60a92cd1140
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Fri, 16 Feb 2018 15:26:51 -0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Fri, 16 Feb 2018 15:31:12 -0300
perf tests shell lib: Use a wildcard to remove the vfs_getname probe
In some situations the vfs_getname is being added both as requested and
with a _1 suffix (inlines?):
probe:vfs_getname_1 (on getname_flags:63@acme/git/linux/fs/namei.c with pathname)
This ends up making the cleanup to miss that one, as it removes just
'probe:vfs_getname', which makes the second test to use this probe point
to fail, since it finds that leftover from the first test, use a
wildcard to remove both.
Before:
# perf test 60 61 62 63
60: Use vfs_getname probe to get syscall args filenames : FAILED!
61: probe libc's inet_pton & backtrace it with ping : Ok
62: Check open filename arg using perf trace + vfs_getname: FAILED!
63: Add vfs_getname probe to get syscall args filenames : Ok
After:
# perf test 60 61 62 63
60: Use vfs_getname probe to get syscall args filenames : Ok
61: probe libc's inet_pton & backtrace it with ping : Ok
62: Check open filename arg using perf trace + vfs_getname: Ok
63: Add vfs_getname probe to get syscall args filenames : Ok
#
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Thomas Richter <tmricht@xxxxxxxxxxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Link: https://lkml.kernel.org/n/tip-2k5kutwr4ds36adiakyb4yvy@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/tests/shell/lib/probe_vfs_getname.sh | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/tests/shell/lib/probe_vfs_getname.sh b/tools/perf/tests/shell/lib/probe_vfs_getname.sh
index 30a950c..1c16e56 100644
--- a/tools/perf/tests/shell/lib/probe_vfs_getname.sh
+++ b/tools/perf/tests/shell/lib/probe_vfs_getname.sh
@@ -5,7 +5,7 @@ had_vfs_getname=$?
cleanup_probe_vfs_getname() {
if [ $had_vfs_getname -eq 1 ] ; then
- perf probe -q -d probe:vfs_getname
+ perf probe -q -d probe:vfs_getname*
fi
}
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