projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| cf1d6c76 TY |
1 | /* -*- mode: c; c-basic-offset: 8; -*- |
| 2 | * vim: noexpandtab sw=8 ts=8 sts=0: | |
| 3 | * | |
| 4 | * xattr.h | |
| 5 | * | |
| c3cb6827 | 6 | * Copyright (C) 2004, 2008 Oracle. All rights reserved. |
| cf1d6c76 TY |
7 | * |
| 8 | * This program is free software; you can redistribute it and/or | |
| 9 | * modify it under the terms of the GNU General Public | |
| c3cb6827 | 10 | * License version 2 as published by the Free Software Foundation. |
| cf1d6c76 TY |
11 | * |
| 12 | * This program is distributed in the hope that it will be useful, | |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 | * General Public License for more details. | |
| cf1d6c76 TY |
16 | */ |
| 17 | ||
| 18 | #ifndef OCFS2_XATTR_H | |
| 19 | #define OCFS2_XATTR_H | |
| 20 | ||
| 21 | #include <linux/init.h> | |
| 22 | #include <linux/xattr.h> | |
| 23 | ||
| 24 | enum ocfs2_xattr_type { | |
| 25 | OCFS2_XATTR_INDEX_USER = 1, | |
| 26 | OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS, | |
| 27 | OCFS2_XATTR_INDEX_POSIX_ACL_DEFAULT, | |
| 28 | OCFS2_XATTR_INDEX_TRUSTED, | |
| 29 | OCFS2_XATTR_INDEX_SECURITY, | |
| 30 | OCFS2_XATTR_MAX | |
| 31 | }; | |
| 32 | ||
| 33 | extern struct xattr_handler ocfs2_xattr_user_handler; | |
| 34 | extern struct xattr_handler ocfs2_xattr_trusted_handler; | |
| 35 | ||
| 36 | extern ssize_t ocfs2_listxattr(struct dentry *, char *, size_t); | |
| 37 | extern int ocfs2_xattr_get(struct inode *, int, const char *, void *, size_t); | |
| 38 | extern int ocfs2_xattr_set(struct inode *, int, const char *, const void *, | |
| 39 | size_t, int); | |
| 40 | extern int ocfs2_xattr_remove(struct inode *inode, struct buffer_head *di_bh); | |
| 41 | extern struct xattr_handler *ocfs2_xattr_handlers[]; | |
| 42 | ||
| 0c044f0b TM |
43 | static inline u16 ocfs2_xattr_buckets_per_cluster(struct ocfs2_super *osb) |
| 44 | { | |
| 45 | return (1 << osb->s_clustersize_bits) / OCFS2_XATTR_BUCKET_SIZE; | |
| 46 | } | |
| 47 | ||
| 48 | static inline u16 ocfs2_blocks_per_xattr_bucket(struct super_block *sb) | |
| 49 | { | |
| 50 | return OCFS2_XATTR_BUCKET_SIZE / (1 << sb->s_blocksize_bits); | |
| 51 | } | |
| 01225596 TM |
52 | |
| 53 | static inline u16 ocfs2_xattr_max_xe_in_bucket(struct super_block *sb) | |
| 54 | { | |
| 55 | u16 len = sb->s_blocksize - | |
| 56 | offsetof(struct ocfs2_xattr_header, xh_entries); | |
| 57 | ||
| 58 | return len / sizeof(struct ocfs2_xattr_entry); | |
| 59 | } | |
| cf1d6c76 | 60 | #endif /* OCFS2_XATTR_H */ |