cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

xfs_attr_sf.h (1515B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * Copyright (c) 2000,2002,2005 Silicon Graphics, Inc.
      4 * All Rights Reserved.
      5 */
      6#ifndef __XFS_ATTR_SF_H__
      7#define	__XFS_ATTR_SF_H__
      8
      9/*
     10 * Attribute storage when stored inside the inode.
     11 *
     12 * Small attribute lists are packed as tightly as possible so as
     13 * to fit into the literal area of the inode.
     14 */
     15typedef struct xfs_attr_sf_hdr xfs_attr_sf_hdr_t;
     16
     17/*
     18 * We generate this then sort it, attr_list() must return things in hash-order.
     19 */
     20typedef struct xfs_attr_sf_sort {
     21	uint8_t		entno;		/* entry number in original list */
     22	uint8_t		namelen;	/* length of name value (no null) */
     23	uint8_t		valuelen;	/* length of value */
     24	uint8_t		flags;		/* flags bits (see xfs_attr_leaf.h) */
     25	xfs_dahash_t	hash;		/* this entry's hash value */
     26	unsigned char	*name;		/* name value, pointer into buffer */
     27} xfs_attr_sf_sort_t;
     28
     29#define XFS_ATTR_SF_ENTSIZE_MAX			/* max space for name&value */ \
     30	((1 << (NBBY*(int)sizeof(uint8_t))) - 1)
     31
     32/* space name/value uses */
     33static inline int xfs_attr_sf_entsize_byname(uint8_t nlen, uint8_t vlen)
     34{
     35	return sizeof(struct xfs_attr_sf_entry) + nlen + vlen;
     36}
     37
     38/* space an entry uses */
     39static inline int xfs_attr_sf_entsize(struct xfs_attr_sf_entry *sfep)
     40{
     41	return struct_size(sfep, nameval, sfep->namelen + sfep->valuelen);
     42}
     43
     44/* next entry in struct */
     45static inline struct xfs_attr_sf_entry *
     46xfs_attr_sf_nextentry(struct xfs_attr_sf_entry *sfep)
     47{
     48	return (void *)sfep + xfs_attr_sf_entsize(sfep);
     49}
     50
     51#endif	/* __XFS_ATTR_SF_H__ */