Commit 8ef6d74e authored May 21, 2019 by Arnaldo Carvalho de Melo

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>

parent ee364dcd

tools/perf/trace/beauty/sync_file_range.sh

0 → 100755

+17 −0

Original line number	Diff line number	Diff line
		#!/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"

Admin message