cregit-Linux how code gets into the kernel

Release 4.10 fs/freevxfs/vxfs_inode.h

Directory: fs/freevxfs
/*
 * Copyright (c) 2000-2001 Christoph Hellwig.
 * Copyright (c) 2016 Krzysztof Blaszkowski
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL").
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 */
#ifndef _VXFS_INODE_H_

#define _VXFS_INODE_H_

/*
 * Veritas filesystem driver - inode structure.
 *
 * This file contains the definition of the disk and core
 * inodes of the Veritas Filesystem.
 */



#define VXFS_ISIZE		0x100		
/* Inode size */


#define VXFS_NDADDR		10		
/* Number of direct addrs in inode */

#define VXFS_NIADDR		2		
/* Number of indirect addrs in inode */

#define VXFS_NIMMED		96		
/* Size of immediate data in inode */

#define VXFS_NTYPED		6		
/* Num of typed extents */


#define VXFS_TYPED_OFFSETMASK	(0x00FFFFFFFFFFFFFFULL)

#define VXFS_TYPED_TYPEMASK	(0xFF00000000000000ULL)

#define VXFS_TYPED_TYPESHIFT	56


#define VXFS_TYPED_PER_BLOCK(sbp) \
	((sbp)->s_blocksize / sizeof(struct vxfs_typed))

/*
 * Possible extent descriptor types for %VXFS_ORG_TYPED extents.
 */
enum {
	
VXFS_TYPED_INDIRECT		= 1,
	
VXFS_TYPED_DATA			= 2,
	
VXFS_TYPED_INDIRECT_DEV4	= 3,
	
VXFS_TYPED_DATA_DEV4		= 4,
};

/*
 * Data stored immediately in the inode.
 */

struct vxfs_immed {
	
__u8			vi_immed[VXFS_NIMMED];
};


struct vxfs_ext4 {
	
__fs32			ve4_spare;		/* ?? */
	
__fs32			ve4_indsize;		/* Indirect extent size */
	
__fs32			ve4_indir[VXFS_NIADDR];	/* Indirect extents */
	
struct direct {					/* Direct extents */
		
__fs32		extent;			/* Extent number */
		
__fs32		size;			/* Size of extent */
	} 
ve4_direct[VXFS_NDADDR];
};


struct vxfs_typed {
	
__fs64		vt_hdr;		/* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */
	
__fs32		vt_block;	/* Extent block */
	
__fs32		vt_size;	/* Size in blocks */
};


struct vxfs_typed_dev4 {
	
__fs64		vd4_hdr;	/* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */
	
__fs64		vd4_block;	/* Extent block */
	
__fs64		vd4_size;	/* Size in blocks */
	
__fs32		vd4_dev;	/* Device ID */
	
__u8		__pad1;
};

/*
 * The inode as contained on the physical device.
 */

struct vxfs_dinode {
	
__fs32		vdi_mode;
	
__fs32		vdi_nlink;	/* Link count */
	
__fs32		vdi_uid;	/* UID */
	
__fs32		vdi_gid;	/* GID */
	
__fs64		vdi_size;	/* Inode size in bytes */
	
__fs32		vdi_atime;	/* Last time accessed - sec */
	
__fs32		vdi_autime;	/* Last time accessed - usec */
	
__fs32		vdi_mtime;	/* Last modify time - sec */
	
__fs32		vdi_mutime;	/* Last modify time - usec */
	
__fs32		vdi_ctime;	/* Create time - sec */
	
__fs32		vdi_cutime;	/* Create time - usec */
	
__u8		vdi_aflags;	/* Allocation flags */
	
__u8		vdi_orgtype;	/* Organisation type */
	
__fs16		vdi_eopflags;
	
__fs32		vdi_eopdata;
	union {
		
__fs32			rdev;
		
__fs32			dotdot;
		struct {
			
__u32		reserved;
			
__fs32		fixextsize;
		} 
i_regular;
		struct {
			
__fs32		matchino;
			
__fs32		fsetindex;
		} 
i_vxspec;
		
__u64			align;
	} 
vdi_ftarea;
	
__fs32		vdi_blocks;	/* How much blocks does inode occupy */
	
__fs32		vdi_gen;	/* Inode generation */
	
__fs64		vdi_version;	/* Version */
	union {
		
struct vxfs_immed	immed;
		
struct vxfs_ext4	ext4;
		
struct vxfs_typed	typed[VXFS_NTYPED];
	} 
vdi_org;
	
__fs32		vdi_iattrino;
};


#define vdi_rdev	vdi_ftarea.rdev

#define vdi_dotdot	vdi_ftarea.dotdot

#define vdi_fixextsize	vdi_ftarea.regular.fixextsize

#define vdi_matchino	vdi_ftarea.vxspec.matchino

#define vdi_fsetindex	vdi_ftarea.vxspec.fsetindex


#define vdi_immed	vdi_org.immed

#define vdi_ext4	vdi_org.ext4

#define vdi_typed	vdi_org.typed


/*
 * The inode as represented in the main memory.
 */

struct vxfs_inode_info {
	
struct inode	vfs_inode;

	
__u32		vii_mode;
	
__u32		vii_nlink;	/* Link count */
	
__u32		vii_uid;	/* UID */
	
__u32		vii_gid;	/* GID */
	
__u64		vii_size;	/* Inode size in bytes */
	
__u32		vii_atime;	/* Last time accessed - sec */
	
__u32		vii_autime;	/* Last time accessed - usec */
	
__u32		vii_mtime;	/* Last modify time - sec */
	
__u32		vii_mutime;	/* Last modify time - usec */
	
__u32		vii_ctime;	/* Create time - sec */
	
__u32		vii_cutime;	/* Create time - usec */
	
__u8		vii_orgtype;	/* Organisation type */
	union {
		
__u32			rdev;
		
__u32			dotdot;
	} 
vii_ftarea;
	
__u32		vii_blocks;	/* How much blocks does inode occupy */
	
__u32		vii_gen;	/* Inode generation */
	union {
		
struct vxfs_immed	immed;
		
struct vxfs_ext4	ext4;
		
struct vxfs_typed	typed[VXFS_NTYPED];
	} 
vii_org;
};


#define vii_rdev	vii_ftarea.rdev

#define vii_dotdot	vii_ftarea.dotdot


#define vii_immed	vii_org.immed

#define vii_ext4	vii_org.ext4

#define vii_typed	vii_org.typed


static inline struct vxfs_inode_info *VXFS_INO(struct inode *inode) { return container_of(inode, struct vxfs_inode_info, vfs_inode); }

Contributors

PersonTokensPropCommitsCommitProp
christoph hellwigchristoph hellwig25100.00%1100.00%
Total25100.00%1100.00%

#endif /* _VXFS_INODE_H_ */

Overall Contributors

PersonTokensPropCommitsCommitProp
linus torvaldslinus torvalds31666.67%125.00%
krzysztof blaszkowskikrzysztof blaszkowski12927.22%250.00%
christoph hellwigchristoph hellwig296.12%125.00%
Total474100.00%4100.00%
Directory: fs/freevxfs
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