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Diffstat (limited to 'fs/btrfs/disk-io.c')
-rw-r--r--fs/btrfs/disk-io.c39
1 files changed, 14 insertions, 25 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 16dae122dda4..790f4b61a3d7 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -895,8 +895,7 @@ static int __setup_root(u32 nodesize, u32 leafsize, u32 sectorsize,
895 root->fs_info = fs_info; 895 root->fs_info = fs_info;
896 root->objectid = objectid; 896 root->objectid = objectid;
897 root->last_trans = 0; 897 root->last_trans = 0;
898 root->highest_inode = 0; 898 root->highest_objectid = 0;
899 root->last_inode_alloc = 0;
900 root->name = NULL; 899 root->name = NULL;
901 root->in_sysfs = 0; 900 root->in_sysfs = 0;
902 root->inode_tree.rb_node = NULL; 901 root->inode_tree.rb_node = NULL;
@@ -1095,7 +1094,6 @@ struct btrfs_root *btrfs_read_fs_root_no_radix(struct btrfs_root *tree_root,
1095 struct btrfs_fs_info *fs_info = tree_root->fs_info; 1094 struct btrfs_fs_info *fs_info = tree_root->fs_info;
1096 struct btrfs_path *path; 1095 struct btrfs_path *path;
1097 struct extent_buffer *l; 1096 struct extent_buffer *l;
1098 u64 highest_inode;
1099 u64 generation; 1097 u64 generation;
1100 u32 blocksize; 1098 u32 blocksize;
1101 int ret = 0; 1099 int ret = 0;
@@ -1110,7 +1108,7 @@ struct btrfs_root *btrfs_read_fs_root_no_radix(struct btrfs_root *tree_root,
1110 kfree(root); 1108 kfree(root);
1111 return ERR_PTR(ret); 1109 return ERR_PTR(ret);
1112 } 1110 }
1113 goto insert; 1111 goto out;
1114 } 1112 }
1115 1113
1116 __setup_root(tree_root->nodesize, tree_root->leafsize, 1114 __setup_root(tree_root->nodesize, tree_root->leafsize,
@@ -1120,39 +1118,30 @@ struct btrfs_root *btrfs_read_fs_root_no_radix(struct btrfs_root *tree_root,
1120 path = btrfs_alloc_path(); 1118 path = btrfs_alloc_path();
1121 BUG_ON(!path); 1119 BUG_ON(!path);
1122 ret = btrfs_search_slot(NULL, tree_root, location, path, 0, 0); 1120 ret = btrfs_search_slot(NULL, tree_root, location, path, 0, 0);
1123 if (ret != 0) { 1121 if (ret == 0) {
1124 if (ret > 0) 1122 l = path->nodes[0];
1125 ret = -ENOENT; 1123 read_extent_buffer(l, &root->root_item,
1126 goto out; 1124 btrfs_item_ptr_offset(l, path->slots[0]),
1125 sizeof(root->root_item));
1126 memcpy(&root->root_key, location, sizeof(*location));
1127 } 1127 }
1128 l = path->nodes[0];
1129 read_extent_buffer(l, &root->root_item,
1130 btrfs_item_ptr_offset(l, path->slots[0]),
1131 sizeof(root->root_item));
1132 memcpy(&root->root_key, location, sizeof(*location));
1133 ret = 0;
1134out:
1135 btrfs_release_path(root, path);
1136 btrfs_free_path(path); 1128 btrfs_free_path(path);
1137 if (ret) { 1129 if (ret) {
1138 kfree(root); 1130 if (ret > 0)
1131 ret = -ENOENT;
1139 return ERR_PTR(ret); 1132 return ERR_PTR(ret);
1140 } 1133 }
1134
1141 generation = btrfs_root_generation(&root->root_item); 1135 generation = btrfs_root_generation(&root->root_item);
1142 blocksize = btrfs_level_size(root, btrfs_root_level(&root->root_item)); 1136 blocksize = btrfs_level_size(root, btrfs_root_level(&root->root_item));
1143 root->node = read_tree_block(root, btrfs_root_bytenr(&root->root_item), 1137 root->node = read_tree_block(root, btrfs_root_bytenr(&root->root_item),
1144 blocksize, generation); 1138 blocksize, generation);
1145 root->commit_root = btrfs_root_node(root); 1139 root->commit_root = btrfs_root_node(root);
1146 BUG_ON(!root->node); 1140 BUG_ON(!root->node);
1147insert: 1141out:
1148 if (location->objectid != BTRFS_TREE_LOG_OBJECTID) { 1142 if (location->objectid != BTRFS_TREE_LOG_OBJECTID)
1149 root->ref_cows = 1; 1143 root->ref_cows = 1;
1150 ret = btrfs_find_highest_inode(root, &highest_inode); 1144
1151 if (ret == 0) {
1152 root->highest_inode = highest_inode;
1153 root->last_inode_alloc = highest_inode;
1154 }
1155 }
1156 return root; 1145 return root;
1157} 1146}
1158 1147