X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=btrfsck.h;h=e16f52f59b018f9da2e24a1892e3fdd7ccab172d;hb=dcb174ce2e2c9be1eaad73757d0312246560ba3d;hp=37ac1303f5d0512c4379b32ae72eb3223fe963bd;hpb=65534643f6e919c39f58bef31ebcffd48d8b1895;p=platform%2Fupstream%2Fbtrfs-progs.git

diff --git a/btrfsck.h b/btrfsck.h
index 37ac130..e16f52f 100644
--- a/btrfsck.h
+++ b/btrfsck.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013 Fujitsu.  All rights reserved.
+ * Copyright (C) 2013 FUJITSU LIMITED.  All rights reserved.
  * Written by Miao Xie <miaox@cn.fujitsu.com>
  *
  * This program is free software; you can redistribute it and/or
@@ -17,15 +17,17 @@
  * Boston, MA 021110-1307, USA.
  */
 
-#ifndef __CHUNK_CHECK_H__
-#define __CHUNK_CHECK_H__
+#ifndef __BTRFS_CHECK_H__
+#define __BTRFS_CHECK_H__
 
 #if BTRFS_FLAT_INCLUDES
 #include "kerncompat.h"
+#include "ctree.h"
 #include "extent-cache.h"
 #include "list.h"
 #else
 #include <btrfs/kerncompat.h>
+#include <btrfs/ctree.h>
 #include <btrfs/extent-cache.h>
 #include <btrfs/list.h>
 #endif /* BTRFS_FLAT_INCLUDES */
@@ -35,6 +37,8 @@ struct block_group_record {
 	/* Used to identify the orphan block groups */
 	struct list_head list;
 
+	u64 generation;
+
 	u64 objectid;
 	u8  type;
 	u64 offset;
@@ -51,6 +55,8 @@ struct device_record {
 	struct rb_node node;
 	u64 devid;
 
+	u64 generation;
+
 	u64 objectid;
 	u8  type;
 	u64 offset;
@@ -64,19 +70,31 @@ struct device_record {
 struct stripe {
 	u64 devid;
 	u64 offset;
+	u8 dev_uuid[BTRFS_UUID_SIZE];
 };
 
 struct chunk_record {
 	struct cache_extent cache;
 
+	struct list_head list;
+	struct list_head dextents;
+	struct block_group_record *bg_rec;
+
+	u64 generation;
+
 	u64 objectid;
 	u8  type;
 	u64 offset;
 
+	u64 owner;
 	u64 length;
 	u64 type_flags;
+	u64 stripe_len;
 	u16 num_stripes;
 	u16 sub_stripes;
+	u32 io_align;
+	u32 io_width;
+	u32 sector_size;
 	struct stripe stripes[0];
 };
 
@@ -89,6 +107,8 @@ struct device_extent_record {
 	struct list_head chunk_list;
 	struct list_head device_list;
 
+	u64 generation;
+
 	u64 objectid;
 	u8  type;
 	u64 offset;
@@ -115,4 +135,69 @@ struct device_extent_tree {
 	struct list_head no_device_orphans;
 };
 
+static inline unsigned long btrfs_chunk_record_size(int num_stripes)
+{
+	return sizeof(struct chunk_record) +
+	       sizeof(struct stripe) * num_stripes;
+}
+void free_chunk_cache_tree(struct cache_tree *chunk_cache);
+
+/*
+ * Function to check validation for num_stripes, or it can call
+ * float point error for 0 division
+ * return < 0 for invalid combination
+ * return 0 for valid combination
+ */
+static inline int check_num_stripes(u64 type, int num_stripes)
+{
+	if (num_stripes == 0)
+		return -1;
+	if (type & BTRFS_BLOCK_GROUP_RAID5 && num_stripes <= 1)
+		return -1;
+	if (type & BTRFS_BLOCK_GROUP_RAID6 && num_stripes <= 2)
+		return -1;
+	return 0;
+}
+
+u64 calc_stripe_length(u64 type, u64 length, int num_stripes);
+/* For block group tree */
+static inline void block_group_tree_init(struct block_group_tree *tree)
+{
+	cache_tree_init(&tree->tree);
+	INIT_LIST_HEAD(&tree->block_groups);
+}
+
+int insert_block_group_record(struct block_group_tree *tree,
+			      struct block_group_record *bg_rec);
+void free_block_group_tree(struct block_group_tree *tree);
+
+/* For device extent tree */
+static inline void device_extent_tree_init(struct device_extent_tree *tree)
+{
+	cache_tree_init(&tree->tree);
+	INIT_LIST_HEAD(&tree->no_chunk_orphans);
+	INIT_LIST_HEAD(&tree->no_device_orphans);
+}
+
+int insert_device_extent_record(struct device_extent_tree *tree,
+				struct device_extent_record *de_rec);
+void free_device_extent_tree(struct device_extent_tree *tree);
+
+
+/* Create various in-memory record by on-disk data */
+struct chunk_record *btrfs_new_chunk_record(struct extent_buffer *leaf,
+					    struct btrfs_key *key,
+					    int slot);
+struct block_group_record *
+btrfs_new_block_group_record(struct extent_buffer *leaf, struct btrfs_key *key,
+			     int slot);
+struct device_extent_record *
+btrfs_new_device_extent_record(struct extent_buffer *leaf,
+			       struct btrfs_key *key, int slot);
+
+int check_chunks(struct cache_tree *chunk_cache,
+		 struct block_group_tree *block_group_cache,
+		 struct device_extent_tree *dev_extent_cache,
+		 struct list_head *good, struct list_head *bad,
+		 struct list_head *rebuild, int silent);
 #endif