diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-07-13 23:34:46 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-07-19 05:13:56 +0300 |
| commit | 64e4561d17c54b64368735bdf89d6873f550d918 (patch) | |
| tree | b65841712920e6ded3135a90b8842ec38e07ea36 /tools/perf/trace | |
| parent | 9c47f66748381ecbaa3a5eb301b81fd2fd0a282d (diff) | |
| download | linux-64e4561d17c54b64368735bdf89d6873f550d918.tar.xz | |
perf trace: Beautify new write hint fcntl commands
Those introduced by the commit c75b1d9421f8 ("fs: add fcntl() interface for
setting/getting write life time hints"), tested using the proggie in that
commit comment:
# perf trace -e fcntl ./write_hint write_hint.c
fcntl: F_GET_RW_HINT: Invalid argument
0.000 ( 0.006 ms): write_hint/7576 fcntl(fd: 3, cmd: GET_RW_HINT, arg: 0x7ffc6c918da0) = -1 EINVAL Invalid argument
0.014 ( 0.004 ms): write_hint/7576 fcntl(fd: 4, cmd: GETFL) = 33794
# perf trace -e fcntl ./write_hint write_hint.c 1
fcntl: F_SET_RW_HINT: Invalid argument
0.000 ( 0.007 ms): write_hint/7578 fcntl(fd: 3, cmd: SET_RW_HINT, arg: 0x7fff03866d70) = -1 EINVAL Invalid argument
0.019 ( 0.002 ms): write_hint/7578 fcntl(fd: 4, cmd: GETFL) = 33794
#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-iacglkc99cchou87k62736dn@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/trace')
0 files changed, 0 insertions, 0 deletions