btrfs: sanitizing ->fs_info, part 1

take assignment of ->fs_info to callers of __setup_root()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 6 insertions, 1 deletions

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index dcb5d949b543..04eba10af825 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1142,7 +1142,6 @@ static int __setup_root(u32 nodesize, u32 leafsize, u32 sectorsize,
         root->orphan_item_inserted = 0;
         root->orphan_cleanup_state = 0;
 
-        root->fs_info = fs_info;
         root->objectid = objectid;
         root->last_trans = 0;
         root->highest_objectid = 0;
@@ -1193,6 +1192,7 @@ static int find_and_setup_root(struct btrfs_root *tree_root,
         u32 blocksize;
         u64 generation;
 
+        root->fs_info = fs_info;
         __setup_root(tree_root->nodesize, tree_root->leafsize,
                      tree_root->sectorsize, tree_root->stripesize,
                      root, fs_info, objectid);
@@ -1227,6 +1227,7 @@ static struct btrfs_root *alloc_log_tree(struct btrfs_trans_handle *trans,
         if (!root)
                 return ERR_PTR(-ENOMEM);
 
+        root->fs_info = fs_info;
         __setup_root(tree_root->nodesize, tree_root->leafsize,
                      tree_root->sectorsize, tree_root->stripesize,
                      root, fs_info, BTRFS_TREE_LOG_OBJECTID);
@@ -1330,6 +1331,7 @@ struct btrfs_root *btrfs_read_fs_root_no_radix(struct btrfs_root *tree_root,
                 goto out;
         }
 
+        root->fs_info = fs_info;
         __setup_root(tree_root->nodesize, tree_root->leafsize,
                      tree_root->sectorsize, tree_root->stripesize,
                      root, fs_info, location->objectid);
@@ -2055,6 +2057,7 @@ struct btrfs_root *open_ctree(struct super_block *sb,
         init_waitqueue_head(&fs_info->transaction_blocked_wait);
         init_waitqueue_head(&fs_info->async_submit_wait);
 
+        tree_root->fs_info = fs_info;
         __setup_root(4096, 4096, 4096, 4096, tree_root,
                      fs_info, BTRFS_ROOT_TREE_OBJECTID);
 
@@ -2247,6 +2250,7 @@ struct btrfs_root *open_ctree(struct super_block *sb,
                                      btrfs_super_chunk_root_level(disk_super));
         generation = btrfs_super_chunk_root_generation(disk_super);
 
+        chunk_root->fs_info = fs_info;
         __setup_root(nodesize, leafsize, sectorsize, stripesize,
                      chunk_root, fs_info, BTRFS_CHUNK_TREE_OBJECTID);
 
@@ -2373,6 +2377,7 @@ retry_root_backup:
                         goto fail_trans_kthread;
                 }
 
+                log_tree_root->fs_info = fs_info;
                 __setup_root(nodesize, leafsize, sectorsize, stripesize,
                              log_tree_root, fs_info, BTRFS_TREE_LOG_OBJECTID);