LXR linux/fs/squashfs/xattr.h

   1/*
   2 * Squashfs - a compressed read only filesystem for Linux
   3 *
   4 * Copyright (c) 2010
   5 * Phillip Lougher <phillip@squashfs.org.uk>
   6 *
   7 * This program is free software; you can redistribute it and/or
   8 * modify it under the terms of the GNU General Public License
   9 * as published by the Free Software Foundation; either version 2,
  10 * or (at your option) any later version.
  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
  15 * GNU General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU General Public License
  18 * along with this program; if not, write to the Free Software
  19 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  20 *
  21 * xattr.h
  22 */
  23
  24#ifdef CONFIG_SQUASHFS_XATTR
  25extern __le64 *squashfs_read_xattr_id_table(struct super_block *, u64,
  26                u64 *, int *);
  27extern int squashfs_xattr_lookup(struct super_block *, unsigned int, int *,
  28                unsigned int *, unsigned long long *);
  29#else
  30static inline __le64 *squashfs_read_xattr_id_table(struct super_block *sb,
  31                u64 start, u64 *xattr_table_start, int *xattr_ids)
  32{
  33        ERROR("Xattrs in filesystem, these will be ignored\n");
  34        *xattr_table_start = start;
  35        return ERR_PTR(-ENOTSUPP);
  36}
  37
  38static inline int squashfs_xattr_lookup(struct super_block *sb,
  39                unsigned int index, int *count, unsigned int *size,
  40                unsigned long long *xattr)
  41{
  42        return 0;
  43}
  44#define squashfs_listxattr NULL
  45#define squashfs_xattr_handlers NULL
  46#endif
  47