[tip:perf/core] perf trace beauty fcntl: Do not suppress 'cmd' when zero, should be DUPFD

[tip-bot for Arnaldo Carvalho de Melo]

Commit-ID:  39cc355b0486d89cef335e35edde26c14b462126
Gitweb:     http://git.kernel.org/tip/39cc355b0486d89cef335e35edde26c14b462126
Author:     Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Mon, 17 Jul 2017 16:02:52 -0300
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Tue, 18 Jul 2017 23:14:25 -0300

perf trace beauty fcntl: Do not suppress 'cmd' when zero, should be DUPFD

Before:

 77059.513 ( 0.005 ms): bash/6649 fcntl(fd: 1</dev/pts/12>, arg: 10) = 10</dev/pts/12>

After:

 77059.513 ( 0.005 ms): bash/6649 fcntl(fd: 1</dev/pts/12>, cmd: DUPFD, arg: 10) = 10</dev/pts/12>

Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-woois88uwcr4xu38xx1ihiwo@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/builtin-trace.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index b842bd9..bab87f6 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -652,7 +652,8 @@ static struct syscall_fmt {
 	  .arg = { [0] = { .scnprintf = SCA_FDAT, /* fd */ }, }, },
 	{ .name	    = "fcntl",	    .errmsg = true,
 	  .arg = { [1] = { .scnprintf = SCA_FCNTL_CMD, /* cmd */
-			   .parm      = &strarrays__fcntl_cmds_arrays, /* cmd */ },
+			   .parm      = &strarrays__fcntl_cmds_arrays,
+			   .show_zero = true, },
 		   [2] = { .scnprintf =  SCA_FCNTL_ARG, /* arg */ }, }, },
 	{ .name	    = "fdatasync",  .errmsg = true, },
 	{ .name	    = "flock",	    .errmsg = true,