Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2: (32 commits)
  ocfs2: recover orphans in offline slots during recovery and mount
  ocfs2: Pagecache usage optimization on ocfs2
  ocfs2: fix rare stale inode errors when exporting via nfs
  ocfs2/dlm: Tweak mle_state output
  ocfs2/dlm: Do not purge lockres that is being migrated dlm_purge_lockres()
  ocfs2/dlm: Remove struct dlm_lock_name in struct dlm_master_list_entry
  ocfs2/dlm: Show the number of lockres/mles in dlm_state
  ocfs2/dlm: dlm_set_lockres_owner() and dlm_change_lockres_owner() inlined
  ocfs2/dlm: Improve lockres counts
  ocfs2/dlm: Track number of mles
  ocfs2/dlm: Indent dlm_cleanup_master_list()
  ocfs2/dlm: Activate dlm->master_hash for master list entries
  ocfs2/dlm: Create and destroy the dlm->master_hash
  ocfs2/dlm: Refactor dlm_clean_master_list()
  ocfs2/dlm: Clean up struct dlm_lock_name
  ocfs2/dlm: Encapsulate adding and removing of mle from dlm->master_list
  ocfs2: Optimize inode group allocation by recording last used group.
  ocfs2: Allocate inode groups from global_bitmap.
  ocfs2: Optimize inode allocation by remembering last group
  ocfs2: fix leaf start calculation in ocfs2_dx_dir_rebalance()
  ...

1 files changed, 57 insertions, 0 deletions

diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 19e3a96aa02c..678a067d9251 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -294,6 +294,55 @@ static struct ocfs2_extent_tree_operations ocfs2_xattr_tree_et_ops = {
         .eo_fill_max_leaf_clusters = ocfs2_xattr_tree_fill_max_leaf_clusters,
 };
 
+static void ocfs2_dx_root_set_last_eb_blk(struct ocfs2_extent_tree *et,
+                                          u64 blkno)
+{
+        struct ocfs2_dx_root_block *dx_root = et->et_object;
+
+        dx_root->dr_last_eb_blk = cpu_to_le64(blkno);
+}
+
+static u64 ocfs2_dx_root_get_last_eb_blk(struct ocfs2_extent_tree *et)
+{
+        struct ocfs2_dx_root_block *dx_root = et->et_object;
+
+        return le64_to_cpu(dx_root->dr_last_eb_blk);
+}
+
+static void ocfs2_dx_root_update_clusters(struct inode *inode,
+                                          struct ocfs2_extent_tree *et,
+                                          u32 clusters)
+{
+        struct ocfs2_dx_root_block *dx_root = et->et_object;
+
+        le32_add_cpu(&dx_root->dr_clusters, clusters);
+}
+
+static int ocfs2_dx_root_sanity_check(struct inode *inode,
+                                      struct ocfs2_extent_tree *et)
+{
+        struct ocfs2_dx_root_block *dx_root = et->et_object;
+
+        BUG_ON(!OCFS2_IS_VALID_DX_ROOT(dx_root));
+
+        return 0;
+}
+
+static void ocfs2_dx_root_fill_root_el(struct ocfs2_extent_tree *et)
+{
+        struct ocfs2_dx_root_block *dx_root = et->et_object;
+
+        et->et_root_el = &dx_root->dr_list;
+}
+
+static struct ocfs2_extent_tree_operations ocfs2_dx_root_et_ops = {
+        .eo_set_last_eb_blk     = ocfs2_dx_root_set_last_eb_blk,
+        .eo_get_last_eb_blk     = ocfs2_dx_root_get_last_eb_blk,
+        .eo_update_clusters     = ocfs2_dx_root_update_clusters,
+        .eo_sanity_check        = ocfs2_dx_root_sanity_check,
+        .eo_fill_root_el        = ocfs2_dx_root_fill_root_el,
+};
+
 static void __ocfs2_init_extent_tree(struct ocfs2_extent_tree *et,
                                      struct inode *inode,
                                      struct buffer_head *bh,
@@ -339,6 +388,14 @@ void ocfs2_init_xattr_value_extent_tree(struct ocfs2_extent_tree *et,
                                  &ocfs2_xattr_value_et_ops);
 }
 
+void ocfs2_init_dx_root_extent_tree(struct ocfs2_extent_tree *et,
+                                    struct inode *inode,
+                                    struct buffer_head *bh)
+{
+        __ocfs2_init_extent_tree(et, inode, bh, ocfs2_journal_access_dr,
+                                 NULL, &ocfs2_dx_root_et_ops);
+}
+
 static inline void ocfs2_et_set_last_eb_blk(struct ocfs2_extent_tree *et,
                                             u64 new_last_eb_blk)
 {