diff options
Diffstat (limited to 'pfinet/linux-src/include/linux/ufs_fs_sb.h')
| -rw-r--r-- | pfinet/linux-src/include/linux/ufs_fs_sb.h | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/pfinet/linux-src/include/linux/ufs_fs_sb.h b/pfinet/linux-src/include/linux/ufs_fs_sb.h new file mode 100644 index 00000000..2fc49e99 --- /dev/null +++ b/pfinet/linux-src/include/linux/ufs_fs_sb.h @@ -0,0 +1,245 @@ +/* + * linux/include/linux/ufs_fs_sb.h + * + * Copyright (C) 1996 + * Adrian Rodriguez (adrian@franklins-tower.rutgers.edu) + * Laboratory for Computer Science Research Computing Facility + * Rutgers, The State University of New Jersey + * + * $Id: ufs_fs_sb.h,v 1.8 1998/05/06 12:04:40 jj Exp $ + * + * Write support by Daniel Pirkl <daniel.pirkl@email.cz> + */ + +#ifndef __LINUX_UFS_FS_SB_H +#define __LINUX_UFS_FS_SB_H + +#include <linux/ufs_fs.h> + +/* + * This structure is used for reading disk structures larger + * than the size of fragment. + */ +struct ufs_buffer_head { + unsigned fragment; /* first fragment */ + unsigned count; /* number of fragments */ + struct buffer_head * bh[UFS_MAXFRAG]; /* buffers */ +}; + +struct ufs_cg_private_info { + struct ufs_cylinder_group ucg; + __u32 c_cgx; /* number of cylidner group */ + __u16 c_ncyl; /* number of cyl's this cg */ + __u16 c_niblk; /* number of inode blocks this cg */ + __u32 c_ndblk; /* number of data blocks this cg */ + __u32 c_rotor; /* position of last used block */ + __u32 c_frotor; /* position of last used frag */ + __u32 c_irotor; /* position of last used inode */ + __u32 c_btotoff; /* (__u32) block totals per cylinder */ + __u32 c_boff; /* (short) free block positions */ + __u32 c_iusedoff; /* (char) used inode map */ + __u32 c_freeoff; /* (u_char) free block map */ + __u32 c_nextfreeoff; /* (u_char) next available space */ + __u32 c_clustersumoff;/* (u_int32) counts of avail clusters */ + __u32 c_clusteroff; /* (u_int8) free cluster map */ + __u32 c_nclusterblks; /* number of clusters this cg */ +}; + +struct ufs_sb_private_info { + struct ufs_buffer_head s_ubh; /* buffer containing super block */ + __u32 s_sblkno; /* offset of super-blocks in filesys */ + __u32 s_cblkno; /* offset of cg-block in filesys */ + __u32 s_iblkno; /* offset of inode-blocks in filesys */ + __u32 s_dblkno; /* offset of first data after cg */ + __u32 s_cgoffset; /* cylinder group offset in cylinder */ + __u32 s_cgmask; /* used to calc mod fs_ntrak */ + __u32 s_size; /* number of blocks (fragments) in fs */ + __u32 s_dsize; /* number of data blocks in fs */ + __u32 s_ncg; /* number of cylinder groups */ + __u32 s_bsize; /* size of basic blocks */ + __u32 s_fsize; /* size of fragments */ + __u32 s_fpb; /* fragments per block */ + __u32 s_minfree; /* minimum percentage of free blocks */ + __u32 s_bmask; /* `blkoff'' calc of blk offsets */ + __u32 s_fmask; /* s_fsize mask */ + __u32 s_bshift; /* `lblkno'' calc of logical blkno */ + __u32 s_fshift; /* s_fsize shift */ + __u32 s_fpbshift; /* fragments per block shift */ + __u32 s_fsbtodb; /* fsbtodb and dbtofsb shift constant */ + __u32 s_sbsize; /* actual size of super block */ + __u32 s_csmask; /* csum block offset */ + __u32 s_csshift; /* csum block number */ + __u32 s_nindir; /* value of NINDIR */ + __u32 s_inopb; /* value of INOPB */ + __u32 s_nspf; /* value of NSPF */ + __u32 s_npsect; /* # sectors/track including spares */ + __u32 s_interleave; /* hardware sector interleave */ + __u32 s_trackskew; /* sector 0 skew, per track */ + __u32 s_csaddr; /* blk addr of cyl grp summary area */ + __u32 s_cssize; /* size of cyl grp summary area */ + __u32 s_cgsize; /* cylinder group size */ + __u32 s_ntrak; /* tracks per cylinder */ + __u32 s_nsect; /* sectors per track */ + __u32 s_spc; /* sectors per cylinder */ + __u32 s_ipg; /* inodes per group */ + __u32 s_fpg; /* fragments per group */ + __u32 s_cpc; /* cyl per cycle in postbl */ + __s32 s_contigsumsize;/* size of cluster summary array, 44bsd */ + __s64 s_qbmask; /* ~usb_bmask */ + __s64 s_qfmask; /* ~usb_fmask */ + __s32 s_postblformat; /* format of positional layout tables */ + __s32 s_nrpos; /* number of rotational positions */ + __s32 s_postbloff; /* (__s16) rotation block list head */ + __s32 s_rotbloff; /* (__u8) blocks for each rotation */ + + __u32 s_fpbmask; /* fragments per block mask */ + __u32 s_apb; /* address per block */ + __u32 s_2apb; /* address per block^2 */ + __u32 s_3apb; /* address per block^3 */ + __u32 s_apbmask; /* address per block mask */ + __u32 s_apbshift; /* address per block shift */ + __u32 s_2apbshift; /* address per block shift * 2 */ + __u32 s_3apbshift; /* address per block shift * 3 */ + __u32 s_nspfshift; /* number of sector per fragment shift */ + __u32 s_nspb; /* number of sector per block */ + __u32 s_inopf; /* inodes per fragment */ + __u32 s_sbbase; /* offset of NeXTstep superblock */ + __u32 s_bpf; /* bits per fragment */ + __u32 s_bpfshift; /* bits per fragment shift*/ + __u32 s_bpfmask; /* bits per fragment mask */ +}; + + +#define UFS_MAX_GROUP_LOADED 8 +#define UFS_CGNO_EMPTY ((unsigned)-1) + +struct ufs_sb_info { + struct ufs_sb_private_info * s_uspi; + struct ufs_csum * s_csp[UFS_MAXCSBUFS]; + unsigned s_swab; + unsigned s_flags; + struct buffer_head ** s_ucg; + struct ufs_cg_private_info * s_ucpi[UFS_MAX_GROUP_LOADED]; + unsigned s_cgno[UFS_MAX_GROUP_LOADED]; + unsigned short s_cg_loaded; + unsigned s_mount_opt; +}; + +/* + * Sizes of this structures are: + * ufs_super_block_first 512 + * ufs_super_block_second 512 + * ufs_super_block_third 356 + */ +struct ufs_super_block_first { + __u32 fs_link; + __u32 fs_rlink; + __u32 fs_sblkno; + __u32 fs_cblkno; + __u32 fs_iblkno; + __u32 fs_dblkno; + __u32 fs_cgoffset; + __u32 fs_cgmask; + __u32 fs_time; + __u32 fs_size; + __u32 fs_dsize; + __u32 fs_ncg; + __u32 fs_bsize; + __u32 fs_fsize; + __u32 fs_frag; + __u32 fs_minfree; + __u32 fs_rotdelay; + __u32 fs_rps; + __u32 fs_bmask; + __u32 fs_fmask; + __u32 fs_bshift; + __u32 fs_fshift; + __u32 fs_maxcontig; + __u32 fs_maxbpg; + __u32 fs_fragshift; + __u32 fs_fsbtodb; + __u32 fs_sbsize; + __u32 fs_csmask; + __u32 fs_csshift; + __u32 fs_nindir; + __u32 fs_inopb; + __u32 fs_nspf; + __u32 fs_optim; + union { + struct { + __u32 fs_npsect; + } fs_sun; + struct { + __s32 fs_state; + } fs_sunx86; + } fs_u1; + __u32 fs_interleave; + __u32 fs_trackskew; + __u32 fs_id[2]; + __u32 fs_csaddr; + __u32 fs_cssize; + __u32 fs_cgsize; + __u32 fs_ntrak; + __u32 fs_nsect; + __u32 fs_spc; + __u32 fs_ncyl; + __u32 fs_cpg; + __u32 fs_ipg; + __u32 fs_fpg; + struct ufs_csum fs_cstotal; + __s8 fs_fmod; + __s8 fs_clean; + __s8 fs_ronly; + __s8 fs_flags; + __s8 fs_fsmnt[UFS_MAXMNTLEN - 212]; + +}; + +struct ufs_super_block_second { + __s8 fs_fsmnt[212]; + __u32 fs_cgrotor; + __u32 fs_csp[UFS_MAXCSBUFS]; + __u32 fs_maxcluster; + __u32 fs_cpc; + __u16 fs_opostbl[82]; +}; + +struct ufs_super_block_third { + __u16 fs_opostbl[46]; + union { + struct { + __s32 fs_sparecon[53];/* reserved for future constants */ + __s32 fs_reclaim; + __s32 fs_sparecon2[1]; + __s32 fs_state; /* file system state time stamp */ + __u32 fs_qbmask[2]; /* ~usb_bmask */ + __u32 fs_qfmask[2]; /* ~usb_fmask */ + } fs_sun; + struct { + __s32 fs_sparecon[53];/* reserved for future constants */ + __s32 fs_reclaim; + __s32 fs_sparecon2[1]; + __u32 fs_npsect; /* # sectors/track including spares */ + __u32 fs_qbmask[2]; /* ~usb_bmask */ + __u32 fs_qfmask[2]; /* ~usb_fmask */ + } fs_sunx86; + struct { + __s32 fs_sparecon[50];/* reserved for future constants */ + __s32 fs_contigsumsize;/* size of cluster summary array */ + __s32 fs_maxsymlinklen;/* max length of an internal symlink */ + __s32 fs_inodefmt; /* format of on-disk inodes */ + __u32 fs_maxfilesize[2]; /* max representable file size */ + __u32 fs_qbmask[2]; /* ~usb_bmask */ + __u32 fs_qfmask[2]; /* ~usb_fmask */ + __s32 fs_state; /* file system state time stamp */ + } fs_44; + } fs_u2; + __s32 fs_postblformat; + __s32 fs_nrpos; + __s32 fs_postbloff; + __s32 fs_rotbloff; + __s32 fs_magic; + __u8 fs_space[1]; +}; + +#endif /* __LINUX_UFS_FS_SB_H */ |