ext2fs: use fat nodes

Use `diskfs_make_node_alloc' to allocate both the node and the
disknode in a continuous chunk of memory.  This increases locality and
reduces the pressure on the memory allocator.

* ext2fs/inode.c: Use `diskfs_node_disknode' to access the disknode.
(diskfs_cached_lookup): Use `diskfs_make_node_alloc' to allocate the
node.
(diskfs_node_norefs): Only free `np'.
* ext2fs/dir.c: Use `diskfs_node_disknode' to access the disknode.
* ext2fs/ext2fs.h: Likewise.
* ext2fs/getblk.c: Likewise.
* ext2fs/ialloc.c: Likewise.
* ext2fs/pager.c: Likewise.
* ext2fs/truncate.c: Likewise.

1 files changed, 2 insertions, 2 deletions

diff --git a/ext2fs/ext2fs.h b/ext2fs/ext2fs.h
index 3422af2f..9667b6f6 100644
--- a/ext2fs/ext2fs.h
+++ b/ext2fs/ext2fs.h
@@ -503,7 +503,7 @@ record_indir_poke (struct node *node, void *ptr)
   ext2_debug ("(%llu, %p)", node->cache_id, ptr);
   assert (disk_cache_block_is_ref (block));
   global_block_modified (block);
-  pokel_add (&node->dn->indir_pokel, block_ptr, block_size);
+  pokel_add (&diskfs_node_disknode (node)->indir_pokel, block_ptr, block_size);
 }
 
 /* ---------------------------------------------------------------- */
@@ -524,7 +524,7 @@ alloc_sync (struct node *np)
       if (np)
 	{
 	  diskfs_node_update (np, 1);
-	  pokel_sync (&np->dn->indir_pokel, 1);
+	  pokel_sync (&diskfs_node_disknode (np)->indir_pokel, 1);
 	}
       diskfs_set_hypermetadata (1, 0);
     }