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