cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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xattr.h (1945B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
      4 * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
      5 */
      6
      7#ifndef __EATTR_DOT_H__
      8#define __EATTR_DOT_H__
      9
     10struct gfs2_inode;
     11struct iattr;
     12
     13#define GFS2_EA_REC_LEN(ea) be32_to_cpu((ea)->ea_rec_len)
     14#define GFS2_EA_DATA_LEN(ea) be32_to_cpu((ea)->ea_data_len)
     15
     16#define GFS2_EA_SIZE(ea) \
     17ALIGN(sizeof(struct gfs2_ea_header) + (ea)->ea_name_len + \
     18      ((GFS2_EA_IS_STUFFED(ea)) ? GFS2_EA_DATA_LEN(ea) : \
     19				  (sizeof(__be64) * (ea)->ea_num_ptrs)), 8)
     20
     21#define GFS2_EA_IS_STUFFED(ea) (!(ea)->ea_num_ptrs)
     22#define GFS2_EA_IS_LAST(ea) ((ea)->ea_flags & GFS2_EAFLAG_LAST)
     23
     24#define GFS2_EAREQ_SIZE_STUFFED(er) \
     25ALIGN(sizeof(struct gfs2_ea_header) + (er)->er_name_len + (er)->er_data_len, 8)
     26
     27#define GFS2_EA2NAME(ea) ((char *)((struct gfs2_ea_header *)(ea) + 1))
     28#define GFS2_EA2DATA(ea) (GFS2_EA2NAME(ea) + (ea)->ea_name_len)
     29
     30#define GFS2_EA2DATAPTRS(ea) \
     31((__be64 *)(GFS2_EA2NAME(ea) + ALIGN((ea)->ea_name_len, 8)))
     32
     33#define GFS2_EA2NEXT(ea) \
     34((struct gfs2_ea_header *)((char *)(ea) + GFS2_EA_REC_LEN(ea)))
     35
     36#define GFS2_EA_BH2FIRST(bh) \
     37((struct gfs2_ea_header *)((bh)->b_data + sizeof(struct gfs2_meta_header)))
     38
     39struct gfs2_ea_request {
     40	const char *er_name;
     41	char *er_data;
     42	unsigned int er_name_len;
     43	unsigned int er_data_len;
     44	unsigned int er_type; /* GFS2_EATYPE_... */
     45};
     46
     47struct gfs2_ea_location {
     48	struct buffer_head *el_bh;
     49	struct gfs2_ea_header *el_ea;
     50	struct gfs2_ea_header *el_prev;
     51};
     52
     53extern int __gfs2_xattr_set(struct inode *inode, const char *name,
     54			    const void *value, size_t size,
     55			    int flags, int type);
     56extern ssize_t gfs2_listxattr(struct dentry *dentry, char *buffer, size_t size);
     57extern int gfs2_ea_dealloc(struct gfs2_inode *ip);
     58
     59/* Exported to acl.c */
     60
     61extern int gfs2_xattr_acl_get(struct gfs2_inode *ip, const char *name, char **data);
     62
     63#endif /* __EATTR_DOT_H__ */