49 lines
942 B
C
Executable File
49 lines
942 B
C
Executable File
/*
|
|
minix/swap.h
|
|
|
|
Defines the super block of swap partitions and some useful constants.
|
|
|
|
Created: Aug 2, 1992 by Philip Homburg
|
|
*/
|
|
|
|
#ifndef _MINIX__SWAP_H
|
|
#define _MINIX__SWAP_H
|
|
|
|
/* Two possible layouts for a partition with swapspace:
|
|
*
|
|
* Sector Swap partition FS+swap partition
|
|
*
|
|
* 0 - 1 bootblock bootblock
|
|
* 2 swap header FS header
|
|
* 3 blank swap header
|
|
* 4 - m swapspace file system
|
|
* m+1 - n - swapspace
|
|
*/
|
|
|
|
#define SWAP_MAGIC0 0x9D
|
|
#define SWAP_MAGIC1 0xC3
|
|
#define SWAP_MAGIC2 0x01
|
|
#define SWAP_MAGIC3 0x82
|
|
|
|
typedef struct swap_hdr
|
|
{
|
|
u8_t sh_magic[4];
|
|
u8_t sh_version;
|
|
u8_t sh_dummy[3];
|
|
u32_t sh_offset;
|
|
u32_t sh_swapsize;
|
|
i32_t sh_priority;
|
|
} swap_hdr_t;
|
|
|
|
#define SWAP_BOOTOFF 1024
|
|
#define SWAP_OFFSET 2048
|
|
#define OPTSWAP_BOOTOFF (1024+512)
|
|
#define SH_VERSION 1
|
|
#define SH_PRIORITY 0
|
|
|
|
#endif /* _MINIX__SWAP_H */
|
|
|
|
/*
|
|
* $PchId: swap.h,v 1.6 1996/04/10 20:25:48 philip Exp $
|
|
*/
|