Merge branches 'sched/clock', 'sched/cleanups' and 'linus' into sched/urgent

[linux-2.6-omap-h63xx.git] / fs / ocfs2 / alloc.h

diff --git a/fs/ocfs2/alloc.h b/fs/ocfs2/alloc.h
index 70257c84cfbe46c092bb78d6f6f2ae00b38505b3..cceff5c37f47c5872284d5ab43fafab9f9e27db1 100644 (file)
--- a/fs/ocfs2/alloc.h
+++ b/fs/ocfs2/alloc.h
@@ -45,7 +45,9 @@
  *
  * ocfs2_extent_tree contains info for the root of the b-tree, it must have a
  * root ocfs2_extent_list and a root_bh so that they can be used in the b-tree
- * functions.
+ * functions.  With metadata ecc, we now call different journal_access
+ * functions for each type of metadata, so it must have the
+ * root_journal_access function.
  * ocfs2_extent_tree_operations abstract the normal operations we do for
  * the root of extent b-tree.
  */
@@ -54,6 +56,7 @@ struct ocfs2_extent_tree {
        struct ocfs2_extent_tree_operations     *et_ops;
        struct buffer_head                      *et_root_bh;
        struct ocfs2_extent_list                *et_root_el;
+       ocfs2_journal_access_func               et_root_journal_access;
        void                                    *et_object;
        unsigned int                            et_max_leaf_clusters;
 };
@@ -68,10 +71,18 @@ void ocfs2_init_dinode_extent_tree(struct ocfs2_extent_tree *et,
 void ocfs2_init_xattr_tree_extent_tree(struct ocfs2_extent_tree *et,
                                       struct inode *inode,
                                       struct buffer_head *bh);
+struct ocfs2_xattr_value_buf;
 void ocfs2_init_xattr_value_extent_tree(struct ocfs2_extent_tree *et,
                                        struct inode *inode,
-                                       struct buffer_head *bh,
-                                       struct ocfs2_xattr_value_root *xv);
+                                       struct ocfs2_xattr_value_buf *vb);
+
+/*
+ * Read an extent block into *bh.  If *bh is NULL, a bh will be
+ * allocated.  This is a cached read.  The extent block will be validated
+ * with ocfs2_validate_extent_block().
+ */
+int ocfs2_read_extent_block(struct inode *inode, u64 eb_blkno,
+                           struct buffer_head **bh);
 
 struct ocfs2_alloc_context;
 int ocfs2_insert_extent(struct ocfs2_super *osb,
@@ -110,6 +121,11 @@ int ocfs2_remove_extent(struct inode *inode,
                        u32 cpos, u32 len, handle_t *handle,
                        struct ocfs2_alloc_context *meta_ac,
                        struct ocfs2_cached_dealloc_ctxt *dealloc);
+int ocfs2_remove_btree_range(struct inode *inode,
+                            struct ocfs2_extent_tree *et,
+                            u32 cpos, u32 phys_cpos, u32 len,
+                            struct ocfs2_cached_dealloc_ctxt *dealloc);
+
 int ocfs2_num_free_extents(struct ocfs2_super *osb,
                           struct inode *inode,
                           struct ocfs2_extent_tree *et);
@@ -167,10 +183,18 @@ int __ocfs2_flush_truncate_log(struct ocfs2_super *osb);
  */
 struct ocfs2_cached_dealloc_ctxt {
        struct ocfs2_per_slot_free_list         *c_first_suballocator;
+       struct ocfs2_cached_block_free          *c_global_allocator;
 };
 static inline void ocfs2_init_dealloc_ctxt(struct ocfs2_cached_dealloc_ctxt *c)
 {
        c->c_first_suballocator = NULL;
+       c->c_global_allocator = NULL;
+}
+int ocfs2_cache_cluster_dealloc(struct ocfs2_cached_dealloc_ctxt *ctxt,
+                               u64 blkno, unsigned int bit);
+static inline int ocfs2_dealloc_has_cluster(struct ocfs2_cached_dealloc_ctxt *c)
+{
+       return c->c_global_allocator != NULL;
 }
 int ocfs2_run_deallocs(struct ocfs2_super *osb,
                       struct ocfs2_cached_dealloc_ctxt *ctxt);