lkml.org 
[lkml]   [2019]   [May]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[tip:perf/core] perf beauty: Add generator for sync_file_range's 'flags' arg values
Commit-ID:  8ef6d74e1dd5ac830fa8b7943255ad9a44a94914
Gitweb: https://git.kernel.org/tip/8ef6d74e1dd5ac830fa8b7943255ad9a44a94914
Author: Arnaldo Carvalho de Melo <acme@redhat.com>
AuthorDate: Tue, 21 May 2019 21:43:39 -0300
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 28 May 2019 18:37:43 -0300

perf beauty: Add generator for sync_file_range's 'flags' arg values

$ tools/perf/trace/beauty/sync_file_range.sh
static const char *sync_file_range_flags[] = {
[ilog2(1) + 1] = "WAIT_BEFORE",
[ilog2(2) + 1] = "WRITE",
[ilog2(4) + 1] = "WAIT_AFTER",
};
$

When all are the above are present, then we have something called
SYNC_FILE_RANGE_WRITE_AND_WAIT, that will be special cased in the
upcoming scnprintf beautifier for this flags arg.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Amir Goldstein <amir73il@gmail.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-uf2vd7bc8fkz65j7yit8dh84@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/trace/beauty/sync_file_range.sh | 17 +++++++++++++++++
1 file changed, 17 insertions(+)

diff --git a/tools/perf/trace/beauty/sync_file_range.sh b/tools/perf/trace/beauty/sync_file_range.sh
new file mode 100755
index 000000000000..7a9282d04e44
--- /dev/null
+++ b/tools/perf/trace/beauty/sync_file_range.sh
@@ -0,0 +1,17 @@
+#!/bin/sh
+# SPDX-License-Identifier: LGPL-2.1
+
+if [ $# -ne 1 ] ; then
+ linux_header_dir=tools/include/uapi/linux
+else
+ linux_header_dir=$1
+fi
+
+linux_fs=${linux_header_dir}/fs.h
+
+printf "static const char *sync_file_range_flags[] = {\n"
+regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+SYNC_FILE_RANGE_([[:alnum:]_]+)[[:space:]]+([[:xdigit:]]+)[[:space:]]*.*'
+egrep $regex ${linux_fs} | \
+ sed -r "s/$regex/\2 \1/g" | \
+ xargs printf "\t[ilog2(%s) + 1] = \"%s\",\n"
+printf "};\n"
\
 
 \ /
  Last update: 2019-05-30 10:06    [W:0.030 / U:0.140 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site