Removed useless functions

userprog/syscall.c

@@ -83,33 +83,3 @@ syscall_handler (struct intr_frame *f UNUSED)
 	thread_exit();
   }  
 }
\ No newline at end of file
-
-static struct list *file_list;
-
-/* Goes through all the files in the file_list and looks for the given file 
- * Descriptor. Linear search
- */
-void file_search(struct file_map *f) {
-	// Creates a struct to hold the currently checked file
-	struct file_map *curr_file;
-	// Creates the list element to test for end of list
-	struct list_elem *list_element;
-	*list_element = *list_begin(file_list);
-
-	// Loop to check each file in the linked list in turn
-	while ((curr_file->file_descriptor != f->file_descriptor) &&
-		(is_tail(list_element) == false)
-		) {
-		// Swaps the list_element for the next one in place
-		list_element = list_next(list_element);
-	}
-	// Copies list_element to current file
-	curr_file->list_element = *list_element;
-	// Checks if file has been found returning NULL if not or the file if it has
-	if (curr_file->file_descriptor != f->file_descriptor) {
-		f->file = NULL;
-	}
-	else {
-		f = curr_file;
-	}
-}
\ No newline at end of file

userprog/system_calls.h

@@ -4,13 +4,6 @@
 #include "filesys/file.c" // Added due to dependency for file
 
 // Maps file descriptions to the associated file structure
-struct file_map
-{
-	struct list_elem list_element; // Defined in list.h
-	int file_descriptor;
-	struct file *file; // Defined in file.c
-};
-
 
 /*
  * Terminates Pintos by calling shutdown_power_off()