trace/beauty/fsmount.c

0001 // SPDX-License-Identifier: LGPL-2.1
0002 /*
0003  * trace/beauty/fsmount.c
0004  *
0005  *  Copyright (C) 2019, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
0006  */
0007
0008 #include "trace/beauty/beauty.h"
0009 #include <linux/log2.h>
0010 #include <uapi/linux/mount.h>
0011
0012 static size_t fsmount__scnprintf_attr_flags(unsigned long flags, char *bf, size_t size, bool show_prefix)
0013 {
0014 #include "trace/beauty/generated/fsmount_arrays.c"
0015        static DEFINE_STRARRAY(fsmount_attr_flags, "MOUNT_ATTR_");
0016        size_t printed = 0;
0017
0018        if ((flags & ~MOUNT_ATTR__ATIME) != 0)
0019            printed += strarray__scnprintf_flags(&strarray__fsmount_attr_flags, bf, size, show_prefix, flags);
0020
0021        if ((flags & MOUNT_ATTR__ATIME) == MOUNT_ATTR_RELATIME) {
0022            printed += scnprintf(bf + printed, size - printed, "%s%s%s",
0023                         printed ? "|" : "", show_prefix ? "MOUNT_ATTR_" : "", "RELATIME");
0024        }
0025
0026        return printed;
0027 }
0028
0029 size_t syscall_arg__scnprintf_fsmount_attr_flags(char *bf, size_t size, struct syscall_arg *arg)
0030 {
0031     unsigned long flags = arg->val;
0032
0033     return fsmount__scnprintf_attr_flags(flags, bf, size, arg->show_string_prefix);
0034 }