sh: Use the common segment definitions for the _64 uaccess routines.

#define VERIFY_READ    0

#define VERIFY_WRITE   1

/*

 * The fs value determines whether argument validity checking should be

 * performed or not.  If get_fs() == USER_DS, checking is performed, with

 * get_fs() == KERNEL_DS, checking is bypassed.

 *

 * For historical reasons (Data Segment Register?), these macros are misnamed.

 */

#define MAKE_MM_SEG(s)	((mm_segment_t) { (s) })

#define KERNEL_DS	MAKE_MM_SEG(0xFFFFFFFF)

#define USER_DS		MAKE_MM_SEG(0x80000000)

#define get_ds()	(KERNEL_DS)

#define get_fs()        (current_thread_info()->addr_limit)

#define set_fs(x)       (current_thread_info()->addr_limit=(x))

#define segment_eq(a,b)	((a).seg == (b).seg)

#define __addr_ok(addr) ((unsigned long)(addr) < (current_thread_info()->addr_limit.seg))

/*