diff options
author | Tiger Yang <tiger.yang@oracle.com> | 2008-08-18 13:11:00 +0400 |
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committer | Mark Fasheh <mfasheh@suse.com> | 2008-10-14 03:57:02 +0400 |
commit | cf1d6c763fbcb115263114302485ad17e7933d87 (patch) | |
tree | 85717dc9d20b7ac1e31b683653933f2d30099f44 /fs/ocfs2/xattr.h | |
parent | fdd77704a8b4666a32120fcd1e4a9fedaf3263d8 (diff) | |
download | linux-cf1d6c763fbcb115263114302485ad17e7933d87.tar.xz |
ocfs2: Add extended attribute support
This patch implements storing extended attributes both in inode or a single
external block. We only store EA's in-inode when blocksize > 512 or that
inode block has free space for it. When an EA's value is larger than 80
bytes, we will store the value via b-tree outside inode or block.
Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2/xattr.h')
-rw-r--r-- | fs/ocfs2/xattr.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/fs/ocfs2/xattr.h b/fs/ocfs2/xattr.h new file mode 100644 index 000000000000..ed32377be9db --- /dev/null +++ b/fs/ocfs2/xattr.h @@ -0,0 +1,51 @@ +/* -*- mode: c; c-basic-offset: 8; -*- + * vim: noexpandtab sw=8 ts=8 sts=0: + * + * xattr.h + * + * Function prototypes + * + * Copyright (C) 2008 Oracle. 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; either + * version 2 of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will 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 to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 021110-1307, USA. + */ + +#ifndef OCFS2_XATTR_H +#define OCFS2_XATTR_H + +#include <linux/init.h> +#include <linux/xattr.h> + +enum ocfs2_xattr_type { + OCFS2_XATTR_INDEX_USER = 1, + OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS, + OCFS2_XATTR_INDEX_POSIX_ACL_DEFAULT, + OCFS2_XATTR_INDEX_TRUSTED, + OCFS2_XATTR_INDEX_SECURITY, + OCFS2_XATTR_MAX +}; + +extern struct xattr_handler ocfs2_xattr_user_handler; +extern struct xattr_handler ocfs2_xattr_trusted_handler; + +extern ssize_t ocfs2_listxattr(struct dentry *, char *, size_t); +extern int ocfs2_xattr_get(struct inode *, int, const char *, void *, size_t); +extern int ocfs2_xattr_set(struct inode *, int, const char *, const void *, + size_t, int); +extern int ocfs2_xattr_remove(struct inode *inode, struct buffer_head *di_bh); +extern struct xattr_handler *ocfs2_xattr_handlers[]; + +#endif /* OCFS2_XATTR_H */ |