tools/perf/trace/beauty/sync_file_range.c

   1 // SPDX-License-Identifier: LGPL-2.1
   2 /*
   3  * trace/beauty/sync_file_range.c
   4  *
   5  *  Copyright (C) 2019, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
   6  */
   7
   8 #include "trace/beauty/beauty.h"
   9 #include <linux/log2.h>
  10 #include <linux/fs.h>
  11
  12 #ifndef SYNC_FILE_RANGE_WRITE_AND_WAIT
  13 #define SYNC_FILE_RANGE_WAIT_BEFORE     1
  14 #define SYNC_FILE_RANGE_WRITE           2
  15 #define SYNC_FILE_RANGE_WAIT_AFTER      4
  16 #define SYNC_FILE_RANGE_WRITE_AND_WAIT  (SYNC_FILE_RANGE_WRITE | \
  17                                          SYNC_FILE_RANGE_WAIT_BEFORE | \
  18                                          SYNC_FILE_RANGE_WAIT_AFTER)
  19 #endif
  20
  21 static size_t sync_file_range__scnprintf_flags(unsigned long flags, char *bf, size_t size, bool show_prefix)
  22 {
  23 #include "trace/beauty/generated/sync_file_range_arrays.c"
  24        static DEFINE_STRARRAY(sync_file_range_flags, "SYNC_FILE_RANGE_");
  25        size_t printed = 0;
  26
  27        if ((flags & SYNC_FILE_RANGE_WRITE_AND_WAIT) == SYNC_FILE_RANGE_WRITE_AND_WAIT) {
  28                printed += scnprintf(bf + printed, size - printed, "%s%s", show_prefix ? "SYNC_FILE_RANGE_" : "", "WRITE_AND_WAIT");
  29                flags &= ~SYNC_FILE_RANGE_WRITE_AND_WAIT;
  30        }
  31
  32        return printed + strarray__scnprintf_flags(&strarray__sync_file_range_flags, bf + printed, size - printed, show_prefix, flags);
  33 }
  34
  35 size_t syscall_arg__scnprintf_sync_file_range_flags(char *bf, size_t size, struct syscall_arg *arg)
  36 {
  37         unsigned long flags = arg->val;
  38
  39         return sync_file_range__scnprintf_flags(flags, bf, size, arg->show_string_prefix);
  40 }