copycheck         158 kern/vm/copyinout.c 	result = copycheck(usersrc, len, &stoplen);
copycheck         194 kern/vm/copyinout.c 	result = copycheck(userdest, len, &stoplen);
copycheck         271 kern/vm/copyinout.c 	result = copycheck(usersrc, len, &stoplen);
copycheck         304 kern/vm/copyinout.c 	result = copycheck(userdest, len, &stoplen);