squashfs: add xattr id support

This patch adds support for mapping xattr ids (stored in inodes)
into the on-disk location of the xattrs themselves.

Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>

1 files changed, 6 insertions, 0 deletions

diff --git a/fs/squashfs/squashfs.h b/fs/squashfs/squashfs.h
index fe2587af5512..133befe2f8b8 100644
--- a/fs/squashfs/squashfs.h
+++ b/fs/squashfs/squashfs.h
@@ -73,6 +73,12 @@ extern struct inode *squashfs_iget(struct super_block *, long long,
                                 unsigned int);
 extern int squashfs_read_inode(struct inode *, long long);
 
+/* xattr_id.c */
+extern int squashfs_xattr_lookup(struct super_block *, unsigned int, int *,
+                                int *, long long *);
+extern __le64 *squashfs_read_xattr_id_table(struct super_block *, u64,
+                                u64 *, int *);
+
 /*
  * Inodes, files and decompressor operations
  */