projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| b3b94faa DT |
1 | /* |
| 2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
| 3a8a9a10 | 3 | * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. |
| b3b94faa DT |
4 | * |
| 5 | * This copyrighted material is made available to anyone wishing to use, | |
| 6 | * modify, copy, or redistribute it subject to the terms and conditions | |
| e9fc2aa0 | 7 | * of the GNU General Public License version 2. |
| b3b94faa DT |
8 | */ |
| 9 | ||
| 10 | #ifndef __EATTR_DOT_H__ | |
| 11 | #define __EATTR_DOT_H__ | |
| 12 | ||
| f2f7ba52 SW |
13 | struct gfs2_inode; |
| 14 | struct iattr; | |
| 15 | ||
| b3b94faa DT |
16 | #define GFS2_EA_REC_LEN(ea) be32_to_cpu((ea)->ea_rec_len) |
| 17 | #define GFS2_EA_DATA_LEN(ea) be32_to_cpu((ea)->ea_data_len) | |
| 18 | ||
| 19 | #define GFS2_EA_SIZE(ea) \ | |
| 20 | ALIGN(sizeof(struct gfs2_ea_header) + (ea)->ea_name_len + \ | |
| 21 | ((GFS2_EA_IS_STUFFED(ea)) ? GFS2_EA_DATA_LEN(ea) : \ | |
| 86d00636 | 22 | (sizeof(__be64) * (ea)->ea_num_ptrs)), 8) |
| b3b94faa | 23 | |
| b3b94faa DT |
24 | #define GFS2_EA_IS_STUFFED(ea) (!(ea)->ea_num_ptrs) |
| 25 | #define GFS2_EA_IS_LAST(ea) ((ea)->ea_flags & GFS2_EAFLAG_LAST) | |
| 26 | ||
| 27 | #define GFS2_EAREQ_SIZE_STUFFED(er) \ | |
| 28 | ALIGN(sizeof(struct gfs2_ea_header) + (er)->er_name_len + (er)->er_data_len, 8) | |
| 29 | ||
| b3b94faa DT |
30 | #define GFS2_EA2NAME(ea) ((char *)((struct gfs2_ea_header *)(ea) + 1)) |
| 31 | #define GFS2_EA2DATA(ea) (GFS2_EA2NAME(ea) + (ea)->ea_name_len) | |
| 32 | ||
| 33 | #define GFS2_EA2DATAPTRS(ea) \ | |
| b44b84d7 | 34 | ((__be64 *)(GFS2_EA2NAME(ea) + ALIGN((ea)->ea_name_len, 8))) |
| b3b94faa DT |
35 | |
| 36 | #define GFS2_EA2NEXT(ea) \ | |
| 37 | ((struct gfs2_ea_header *)((char *)(ea) + GFS2_EA_REC_LEN(ea))) | |
| 38 | ||
| 39 | #define GFS2_EA_BH2FIRST(bh) \ | |
| 40 | ((struct gfs2_ea_header *)((bh)->b_data + sizeof(struct gfs2_meta_header))) | |
| 41 | ||
| b3b94faa | 42 | struct gfs2_ea_request { |
| cca195c5 | 43 | const char *er_name; |
| b3b94faa DT |
44 | char *er_data; |
| 45 | unsigned int er_name_len; | |
| 46 | unsigned int er_data_len; | |
| 47 | unsigned int er_type; /* GFS2_EATYPE_... */ | |
| b3b94faa DT |
48 | }; |
| 49 | ||
| 50 | struct gfs2_ea_location { | |
| 51 | struct buffer_head *el_bh; | |
| 52 | struct gfs2_ea_header *el_ea; | |
| 53 | struct gfs2_ea_header *el_prev; | |
| 54 | }; | |
| 55 | ||
| 431547b3 CH |
56 | extern int __gfs2_xattr_set(struct inode *inode, const char *name, |
| 57 | const void *value, size_t size, | |
| 58 | int flags, int type); | |
| 40b78a32 SW |
59 | extern ssize_t gfs2_listxattr(struct dentry *dentry, char *buffer, size_t size); |
| 60 | extern int gfs2_ea_dealloc(struct gfs2_inode *ip); | |
| b3b94faa | 61 | |
| b3b94faa DT |
62 | /* Exported to acl.c */ |
| 63 | ||
| 479c427d SW |
64 | extern int gfs2_xattr_acl_get(struct gfs2_inode *ip, const char *name, char **data); |
| 65 | extern int gfs2_xattr_acl_chmod(struct gfs2_inode *ip, struct iattr *attr, char *data); | |
| 639b6d79 | 66 | |
| b3b94faa | 67 | #endif /* __EATTR_DOT_H__ */ |