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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-10-26 19:23:25 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-10-30 17:46:23 +0300 |
| commit | 476c92cacf383c83584ba02d06c88cf18f062afb (patch) | |
| tree | bf86a1ad63f1496b0e427f26b775f50d52d1a880 /tools | |
| parent | f932184e282f574cfd34afee917a10b782fd3e76 (diff) | |
| download | linux-476c92cacf383c83584ba02d06c88cf18f062afb.tar.xz | |
perf trace: Beautify the umount's 'name' argument
By using the SCA_FILENAME beautifier, that works when either the
probe:vfs_getname probe is in place or with the eBPF program
tools/perf/examples/bpf/augmented_syscalls.c:
# perf probe -l
probe:vfs_getname (on getname_flags:73@acme/git/linux/fs/namei.c with pathname)
# perf trace -e umount
9630.332 ( 9.521 ms): umount/8082 umount2(name: /mnt) = 0
#
The augmented syscalls one will be done in the next patch.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Benjamin Peterson <benjamin@python.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-hegbzlpd2nrn584l5jxn7sy2@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/builtin-trace.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index db8711061ca3..d286f73ef2e5 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -838,7 +838,8 @@ static struct syscall_fmt { .arg = { [2] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, { .name = "tkill", .arg = { [1] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, - { .name = "umount2", .alias = "umount", }, + { .name = "umount2", .alias = "umount", + .arg = { [0] = { .scnprintf = SCA_FILENAME, /* name */ }, }, }, { .name = "uname", .alias = "newuname", }, { .name = "unlinkat", .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |