fs/squashfs/xattr.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Squashfs - a compressed read only filesystem for Linux
   4  *
   5  * Copyright (c) 2010
   6  * Phillip Lougher <phillip@squashfs.org.uk>
   7  *
   8  * xattr.h
   9  */
  10
  11 #ifdef CONFIG_SQUASHFS_XATTR
  12 extern __le64 *squashfs_read_xattr_id_table(struct super_block *, u64,
  13                 u64 *, int *);
  14 extern int squashfs_xattr_lookup(struct super_block *, unsigned int, int *,
  15                 unsigned int *, unsigned long long *);
  16 #else
  17 static inline __le64 *squashfs_read_xattr_id_table(struct super_block *sb,
  18                 u64 start, u64 *xattr_table_start, int *xattr_ids)
  19 {
  20         ERROR("Xattrs in filesystem, these will be ignored\n");
  21         *xattr_table_start = start;
  22         return ERR_PTR(-ENOTSUPP);
  23 }
  24
  25 static inline int squashfs_xattr_lookup(struct super_block *sb,
  26                 unsigned int index, int *count, unsigned int *size,
  27                 unsigned long long *xattr)
  28 {
  29         return 0;
  30 }
  31 #define squashfs_listxattr NULL
  32 #define squashfs_xattr_handlers NULL
  33 #endif