cregit-Linux how code gets into the kernel

Release 4.11 fs/xfs/libxfs/xfs_attr_sf.h

Directory: fs/xfs/libxfs
/*
 * Copyright (c) 2000,2002,2005 Silicon Graphics, Inc.
 * All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it would be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write the Free Software Foundation,
 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
#ifndef __XFS_ATTR_SF_H__

#define	__XFS_ATTR_SF_H__

/*
 * Attribute storage when stored inside the inode.
 *
 * Small attribute lists are packed as tightly as possible so as
 * to fit into the literal area of the inode.
 */

typedef struct xfs_attr_sf_hdr xfs_attr_sf_hdr_t;

typedef struct xfs_attr_sf_entry xfs_attr_sf_entry_t;

/*
 * We generate this then sort it, attr_list() must return things in hash-order.
 */

typedef struct xfs_attr_sf_sort {
	
__uint8_t	entno;		/* entry number in original list */
	
__uint8_t	namelen;	/* length of name value (no null) */
	
__uint8_t	valuelen;	/* length of value */
	
__uint8_t	flags;		/* flags bits (see xfs_attr_leaf.h) */
	
xfs_dahash_t	hash;		/* this entry's hash value */
	
unsigned char	*name;		/* name value, pointer into buffer */
} 
xfs_attr_sf_sort_t;


#define XFS_ATTR_SF_ENTSIZE_BYNAME(nlen,vlen)	/* space name/value uses */ \
	(((int)sizeof(xfs_attr_sf_entry_t)-1 + (nlen)+(vlen)))

#define XFS_ATTR_SF_ENTSIZE_MAX			/* max space for name&value */ \
	((1 << (NBBY*(int)sizeof(__uint8_t))) - 1)

#define XFS_ATTR_SF_ENTSIZE(sfep)		/* space an entry uses */ \
	((int)sizeof(xfs_attr_sf_entry_t)-1 + (sfep)->namelen+(sfep)->valuelen)

#define XFS_ATTR_SF_NEXTENTRY(sfep)		/* next entry in struct */ \
	((xfs_attr_sf_entry_t *)((char *)(sfep) + XFS_ATTR_SF_ENTSIZE(sfep)))

#define XFS_ATTR_SF_TOTSIZE(dp)			/* total space in use */ \
	(be16_to_cpu(((xfs_attr_shortform_t *)  \
                ((dp)->i_afp->if_u1.if_data))->hdr.totsize))

#endif	/* __XFS_ATTR_SF_H__ */

Overall Contributors

PersonTokensPropCommitsCommitProp
Christoph Hellwig9494.95%120.00%
Nathan Scott44.04%360.00%
David Chinner11.01%120.00%
Total99100.00%5100.00%
Directory: fs/xfs/libxfs
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