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| author | Benjamin Peterson <benjamin@python.org> | 2018-08-27 20:53:44 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-08-30 15:52:25 -0300 |
| commit | 3de3e8bbf302545ef9acebb9f900939ac5c3820f (patch) | |
| tree | 1ded3f66689e9eb492b835b4b81696977e9c0230 /tools/perf/builtin-trace.c | |
| parent | 088519f318be3a41d1afe8d628c4a1eb5a50b4c0 (diff) | |
| download | lwn-3de3e8bbf302545ef9acebb9f900939ac5c3820f.tar.gz lwn-3de3e8bbf302545ef9acebb9f900939ac5c3820f.zip | |
perf trace beauty: Alias 'umount' to 'umount2'
Before:
# perf trace -e *mount* umount /dev/mapper/fedora-home /s
11.576 ( 0.004 ms) umount/3138 umount2(arg0: 94501956754656, arg1: 0, arg2: 1, arg3: 140051050083104, arg4: 4, arg5: 94501956755136) = -1 EINVAL Invalid argument
#
After:
# perf trace -e *mount* umount /s
0.000 ( 9.241 ms): umount/5251 umount2(name: 0x55f74a986480) = 0
Signed-off-by: Benjamin Peterson <benjamin@python.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180828035344.31500-1-benjamin@python.org
[ split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-trace.c')
| -rw-r--r-- | tools/perf/builtin-trace.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 97ace635bed8..c106189f4066 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -825,6 +825,7 @@ static struct syscall_fmt { .arg = { [2] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, { .name = "tkill", .arg = { [1] = { .scnprintf = SCA_SIGNUM, /* sig */ }, }, }, + { .name = "umount2", .alias = "umount", }, { .name = "uname", .alias = "newuname", }, { .name = "unlinkat", .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, |