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author | Roland McGrath <roland@gnu.org> | 2000-02-04 03:21:18 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 2000-02-04 03:21:18 +0000 |
commit | 9fd51e9b0ad33a89a83fdbbb66bd20d85f7893fb (patch) | |
tree | 8845b79f170028cb4380045c50277bbf075b5b7d /pfinet/linux-src/include/linux/efs_fs_sb.h | |
download | hurd-9fd51e9b0ad33a89a83fdbbb66bd20d85f7893fb.tar.gz hurd-9fd51e9b0ad33a89a83fdbbb66bd20d85f7893fb.tar.bz2 hurd-9fd51e9b0ad33a89a83fdbbb66bd20d85f7893fb.zip |
Import of Linux 2.2.12 subset (ipv4 stack and related)
Diffstat (limited to 'pfinet/linux-src/include/linux/efs_fs_sb.h')
-rw-r--r-- | pfinet/linux-src/include/linux/efs_fs_sb.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/pfinet/linux-src/include/linux/efs_fs_sb.h b/pfinet/linux-src/include/linux/efs_fs_sb.h new file mode 100644 index 00000000..95476663 --- /dev/null +++ b/pfinet/linux-src/include/linux/efs_fs_sb.h @@ -0,0 +1,63 @@ +/* + * efs_fs_sb.h + * + * Copyright (c) 1999 Al Smith + * + * Portions derived from IRIX header files (c) 1988 Silicon Graphics + */ + +#ifndef __EFS_FS_SB_H__ +#define __EFS_FS_SB_H__ + +/* statfs() magic number for EFS */ +#define EFS_SUPER_MAGIC 0x414A53 + +/* EFS superblock magic numbers */ +#define EFS_MAGIC 0x072959 +#define EFS_NEWMAGIC 0x07295a + +#define IS_EFS_MAGIC(x) ((x == EFS_MAGIC) || (x == EFS_NEWMAGIC)) + +#define EFS_SUPER 1 +#define EFS_ROOTINODE 2 + +/* efs superblock on disk */ +struct efs_super { + int32_t fs_size; /* size of filesystem, in sectors */ + int32_t fs_firstcg; /* bb offset to first cg */ + int32_t fs_cgfsize; /* size of cylinder group in bb's */ + short fs_cgisize; /* bb's of inodes per cylinder group */ + short fs_sectors; /* sectors per track */ + short fs_heads; /* heads per cylinder */ + short fs_ncg; /* # of cylinder groups in filesystem */ + short fs_dirty; /* fs needs to be fsck'd */ + short fs_filler; /* force fs_time to start 2bytes later*/ + int32_t fs_time; /* last super-block update */ + int32_t fs_magic; /* magic number */ + char fs_fname[6]; /* file system name */ + char fs_fpack[6]; /* file system pack name */ + int32_t fs_bmsize; /* size of bitmap in bytes */ + int32_t fs_tfree; /* total free data blocks */ + int32_t fs_tinode; /* total free inodes */ + int32_t fs_bmblock; /* bitmap location. */ + int32_t fs_replsb; /* Location of replicated superblock. */ + int32_t fs_lastialloc; /* last allocated inode */ + char fs_spare[20]; /* space for expansion - MUST BE ZERO */ + int32_t fs_checksum; /* checksum of volume portion of fs */ +}; + +/* efs superblock information in memory */ +struct efs_sb_info { + int32_t fs_magic; /* superblock magic number */ + int32_t fs_start; /* first block of filesystem */ + int32_t first_block; /* first data block in filesystem */ + int32_t total_blocks; /* total number of blocks in filesystem */ + int32_t group_size; /* # of blocks a group consists of */ + int32_t data_free; /* # of free data blocks */ + int32_t inode_free; /* # of free inodes */ + short inode_blocks; /* # of blocks used for inodes in every grp */ + short total_groups; /* # of groups */ +}; + +#endif /* __EFS_FS_SB_H__ */ + |