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 <sys/mount.h> 11 12 #ifndef MOUNT_ATTR__ATIME 13 #define MOUNT_ATTR__ATIME 0x00000070 /* Setting on how atime should be updated */ 14 #endif 15 #ifndef MOUNT_ATTR_RELATIME 16 #define MOUNT_ATTR_RELATIME 0x00000000 /* - Update atime relative to mtime/ctime. */ 17 #endif 18 19 static size_t fsmount__scnprintf_attr_flags(unsigned long flags, char *bf, size_t size, bool show_prefix) 20 { 21 #include "trace/beauty/generated/fsmount_arrays.c" 22 static DEFINE_STRARRAY(fsmount_attr_flags, "MOUNT_ATTR_"); 23 size_t printed = 0; 24 25 if ((flags & ~MOUNT_ATTR__ATIME) != 0) 26 printed += strarray__scnprintf_flags(&strarray__fsmount_attr_flags, bf, size, show_prefix, flags); 27 28 if ((flags & MOUNT_ATTR__ATIME) == MOUNT_ATTR_RELATIME) { 29 printed += scnprintf(bf + printed, size - printed, "%s%s%s", 30 printed ? "|" : "", show_prefix ? "MOUNT_ATTR_" : "", "RELATIME"); 31 } 32 33 return printed; 34 } 35 36 size_t syscall_arg__scnprintf_fsmount_attr_flags(char *bf, size_t size, struct syscall_arg *arg) 37 { 38 unsigned long flags = arg->val; 39 40 return fsmount__scnprintf_attr_flags(flags, bf, size, arg->show_string_prefix); 41 } 42