perf trace: Beautify new write hint fcntl commands
tip-bot for Arnaldo Carvalho de Melo
merge botCommit-ID: 64e4561d17c54b64368735bdf89d6873f550d918 Gitweb: http://git.kernel.org/tip/64e4561d17c54b64368735bdf89d6873f550d918 Author: Arnaldo Carvalho de Melo <[email protected]> AuthorDate: Thu, 13 Jul 2017 17:34:46 -0300 Committer: Arnaldo Carvalho de Melo <[email protected]> CommitDate: Tue, 18 Jul 2017 23:13:56 -0300
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 <[email protected]>
Cc David Ahern <[email protected]>
Cc Jens Axboe <[email protected]>
Cc Jiri Olsa <[email protected]>
Cc Martin K. Petersen <[email protected]>
Cc Namhyung Kim <[email protected]>
Cc Wang Nan <[email protected]>
Signed-off-by Arnaldo Carvalho de Melo <[email protected]>
--- tools/perf/builtin-trace.c | 1 + 1 file changed, 1 insertion(+)
tools/perf/builtin-trace.c +1 -0
@@ -449,6 +449,7 @@ static DEFINE_STRARRAY(fcntl_cmds);static const char *fcntl_linux_specific_cmds[] = {"SETLEASE" ,"GETLEASE" ,"NOTIFY" , [5 ] ="CANCELLK" ,"DUPFD_CLOEXEC" ,"SETPIPE_SZ" ,"GETPIPE_SZ" ,"ADD_SEALS" ,"GET_SEALS" , +"GET_RW_HINT" ,"SET_RW_HINT" ,"GET_FILE_RW_HINT" ,"SET_FILE_RW_HINT" , }; static DEFINE_STRARRAY_OFFSET(fcntl_linux_specific_cmds, F_LINUX_SPECIFIC_BASE);