| From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 69/77] perf trace beauty: Alias 'umount' to 'umount2' | Date | Wed, 5 Sep 2018 19:04:32 -0300 |
| |
From: Benjamin Peterson <benjamin@python.org>
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> --- tools/perf/builtin-trace.c | 1 + 1 file changed, 1 insertion(+)
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 */ }, }, }, -- 2.14.4
|