1. 根目录:
2. arch
3. powerpc
4. include
5. uapi
6. asm
7. errno.h

#ifndef _ASM_POWERPC_ERRNO_H
#define _ASM_POWERPC_ERRNO_H

#include <asm-generic/errno.h>

#undef	EDEADLOCK
#define	EDEADLOCK	58	/* File locking deadlock error */

#endif	/* _ASM_POWERPC_ERRNO_H */