Implement an ATA driver, Add vfsmount/vfsunmount syscalls

kernel/util/util.h

@@ -1,6 +1,9 @@
 #ifndef UTIL_UTIL_H_
 #define UTIL_UTIL_H_
 
+#include <stdint.h>
+#include <stddef.h>
+
 #define _DIV_ROUNDUP(num, div) ((num + div - 1) / div)
 #define MAX(a, b) (((a) > (b)) ? (a) : (b))
 #define MIN(a, b) (((a) < (b)) ? (a) : (b))
@@ -74,5 +77,6 @@
        var = tmp, tmp = (var ? var->next : NULL), (idx)++)
 
 char *util_get_filename(char *path);
+const char *human_size(uint64_t bytes, char *buf, size_t bufsize);
 
 #endif // UTIL_UTIL_H_