patch-2.1.112 linux/include/linux/ufs_fs_sb.h

• Lines: 250
• Date: Sun Jul 26 01:20:22 1998
• Orig file: v2.1.111/linux/include/linux/ufs_fs_sb.h
• Orig date: Tue Feb 17 13:12:49 1998

diff -u --recursive --new-file v2.1.111/linux/include/linux/ufs_fs_sb.h linux/include/linux/ufs_fs_sb.h
@@ -1,4 +1,4 @@
-/*
+/* 
  *  linux/include/linux/ufs_fs_sb.h
  *
  * Copyright (C) 1996
@@ -6,8 +6,10 @@
  * Laboratory for Computer Science Research Computing Facility
  * Rutgers, The State University of New Jersey
  *
- * NeXTstep support added on February 5th 1998 by
- * Niels Kristian Bech Jensen <nkbj@image.dk>.
+ * $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)
+ * Charles University (Prague), Faculty of Mathematics and Physics
  */
 
 #ifndef __LINUX_UFS_FS_SB_H
@@ -15,27 +17,210 @@
 
 #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 */
+};	
+	
+
+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 */
+	__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 */
+};
+
+
+#define UFS_MAX_GROUP_LOADED 1
+#define UFS_CGNO_EMPTY uspi->s_ncg
+
 struct ufs_sb_info {
-	struct ufs_superblock * s_raw_sb;
-	__u32	s_flags; /* internal flags for UFS code */
-	__u32	s_ncg;	 /* used in ufs_read_inode */
-	__u32	s_ipg;	 /* used in ufs_read_inode */
-	__u32	s_fpg;
-	__u32	s_fsize;
-	__u32	s_fshift;
-	__u32	s_fmask;
-	__u32	s_bsize;
-	__u32	s_bmask;
-	__u32	s_bshift;
-	__u32	s_iblkno;
-	__u32	s_dblkno;
-	__u32	s_cgoffset;
-	__u32	s_cgmask;
-	__u32	s_inopb;
-	__u32	s_lshift;
-	__u32	s_lmask;
-	__u32	s_fsfrag;
-	__u32	s_blockbase;	/* offset of NeXTstep superblock */
+	struct ufs_sb_private_info * s_uspi;	
+	struct ufs_csum	* s_csp[UFS_MAXCSBUFS];
+	int s_rename_lock;
+	struct wait_queue * s_rename_wait;
+	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;
+};
+
+/*
+ * 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;
+	__u32	fs_npsect;
+	__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;
+	__u8	fs_fmod;
+	__u8	fs_clean;
+	__u8	fs_ronly;
+	__u8	fs_flags;
+	__u8	fs_fsmnt[UFS_MAXMNTLEN - 212];
+
+};
+
+struct ufs_super_block_second {
+	__u8	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[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_u;
+	__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 */