tools/perf/trace/beauty/fsmount.c

   1 // SPDX-License-Identifier: LGPL-2.1
   2 /*
   3  * trace/beauty/fsmount.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 <uapi/linux/mount.h>
  11
  12 static size_t fsmount__scnprintf_attr_flags(unsigned long flags, char *bf, size_t size, bool show_prefix)
  13 {
  14 #include "trace/beauty/generated/fsmount_arrays.c"
  15        static DEFINE_STRARRAY(fsmount_attr_flags, "MOUNT_ATTR_");
  16        size_t printed = 0;
  17
  18        if ((flags & ~MOUNT_ATTR__ATIME) != 0)
  19                printed += strarray__scnprintf_flags(&strarray__fsmount_attr_flags, bf, size, show_prefix, flags);
  20
  21        if ((flags & MOUNT_ATTR__ATIME) == MOUNT_ATTR_RELATIME) {
  22                printed += scnprintf(bf + printed, size - printed, "%s%s%s",
  23                                     printed ? "|" : "", show_prefix ? "MOUNT_ATTR_" : "", "RELATIME");
  24        }
  25
  26        return printed;
  27 }
  28
  29 size_t syscall_arg__scnprintf_fsmount_attr_flags(char *bf, size_t size, struct syscall_arg *arg)
  30 {
  31         unsigned long flags = arg->val;
  32
  33         return fsmount__scnprintf_attr_flags(flags, bf, size, arg->show_string_prefix);
  34 }