Commit-ID: 8ef6d74e1dd5ac830fa8b7943255ad9a44a94914
Gitweb: https://git.kernel.org/tip/8ef6d74e1dd5ac830fa8b7943255ad9a44a94914
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Tue, 21 May 2019 21:43:39 -0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
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@xxxxxxxxx>
Cc: Amir Goldstein <amir73il@xxxxxxxxx>
Cc: Brendan Gregg <brendan.d.gregg@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Luis Cláudio Gonçalves <lclaudio@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Link: https://lkml.kernel.org/n/tip-uf2vd7bc8fkz65j7yit8dh84@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
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"
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