linux-kernel - [tip:perf/core] perf trace: Beautify new write hint fcntl commands

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Message-ID: <tip-iacglkc99cchou87k62736dn@git.kernel.org>
Date:   Thu, 20 Jul 2017 01:41:21 -0700
From:   tip-bot for Arnaldo Carvalho de Melo <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     tglx@...utronix.de, hpa@...or.com, mingo@...nel.org,
        adrian.hunter@...el.com, martin.petersen@...cle.com,
        axboe@...nel.dk, linux-kernel@...r.kernel.org, jolsa@...nel.org,
        dsahern@...il.com, acme@...hat.com, namhyung@...nel.org,
        wangnan0@...wei.com
Subject: [tip:perf/core] perf trace: Beautify new write hint fcntl commands

Commit-ID:  64e4561d17c54b64368735bdf89d6873f550d918
Gitweb:     http://git.kernel.org/tip/64e4561d17c54b64368735bdf89d6873f550d918
Author:     Arnaldo Carvalho de Melo <acme@...hat.com>
AuthorDate: Thu, 13 Jul 2017 17:34:46 -0300
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
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 <adrian.hunter@...el.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Jens Axboe <axboe@...nel.dk>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Martin K. Petersen <martin.petersen@...cle.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Wang Nan <wangnan0@...wei.com>
Link: http://lkml.kernel.org/n/tip-iacglkc99cchou87k62736dn@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.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 2a894ea..1f070bc 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -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);