ocfs2: Add extended attribute support

[deliverable/linux.git] / fs / ocfs2 / ocfs2_fs.h

diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h
index 1055ba0af9bb0f9d042bf8f03b907b02946c4c21..98e1f8bba0e105d7a16331fa2c1b15da88ace6bc 100644 (file)
--- a/fs/ocfs2/ocfs2_fs.h
+++ b/fs/ocfs2/ocfs2_fs.h
@@ -570,7 +570,7 @@ struct ocfs2_super_block {
 /*40*/ __le16 s_max_slots;             /* Max number of simultaneous mounts
                                           before tunefs required */
        __le16 s_tunefs_flag;
-       __le32 s_reserved1;
+       __le32 s_uuid_hash;             /* hash value of uuid */
        __le64 s_first_cluster_group;   /* Block offset of 1st cluster
                                         * group header */
 /*50*/ __u8  s_label[OCFS2_MAX_VOL_LABEL_LEN]; /* Label for mounting, etc. */
@@ -787,7 +787,11 @@ struct ocfs2_xattr_tree_root {
 /*10*/ struct ocfs2_extent_list xt_list; /* Extent record list */
 };
 
-#define OCFS2_XATTR_INDEXED 0x1
+#define OCFS2_XATTR_INDEXED    0x1
+#define OCFS2_HASH_SHIFT       5
+#define OCFS2_XATTR_ROUND      3
+#define OCFS2_XATTR_SIZE(size) (((size) + OCFS2_XATTR_ROUND) & \
+                               ~(OCFS2_XATTR_ROUND))
 
 /*
  * On disk structure for xattr block.