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| author | Al Viro <viro@zeniv.linux.org.uk> | 2011-11-17 00:38:54 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-01-08 19:34:37 -0500 |
| commit | 38a77db49ad8f78369dcdfb693b8e5a818a60104 (patch) | |
| tree | 0987ff5d4029c016b173f72c7e1883ab9cbc59a9 /fs | |
| parent | 1233f546ec29ac32424327baf6ae5df81e3d9eae (diff) | |
| download | linux-stable-38a77db49ad8f78369dcdfb693b8e5a818a60104.tar.gz linux-stable-38a77db49ad8f78369dcdfb693b8e5a818a60104.tar.bz2 linux-stable-38a77db49ad8f78369dcdfb693b8e5a818a60104.zip | |
btrfs: sanitizing ->fs_info, part 3
move assignments to ->fs_info in open_ctree() up, to the place
just after the original allocations. Assignment for tree_root
becomes a no-op - we'd obtained fs_info from tree_root->fs_info
in the first place.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/disk-io.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index b8dae517f80c..06480fcf0fb3 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -1320,8 +1320,8 @@ struct btrfs_root *btrfs_read_fs_root_no_radix(struct btrfs_root *tree_root, root = kzalloc(sizeof(*root), GFP_NOFS); if (!root) return ERR_PTR(-ENOMEM); + root->fs_info = fs_info; if (location->offset == (u64)-1) { - root->fs_info = fs_info; ret = find_and_setup_root(tree_root, fs_info, location->objectid, root); if (ret) { @@ -1331,7 +1331,6 @@ 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); @@ -1914,6 +1913,10 @@ struct btrfs_root *open_ctree(struct super_block *sb, err = -ENOMEM; goto fail; } + chunk_root->fs_info = fs_info; + extent_root->fs_info = fs_info; + dev_root->fs_info = fs_info; + csum_root->fs_info = fs_info; ret = init_srcu_struct(&fs_info->subvol_srcu); if (ret) { @@ -2057,7 +2060,6 @@ 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); @@ -2250,7 +2252,6 @@ 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); @@ -2300,21 +2301,18 @@ retry_root_backup: btrfs_set_root_node(&tree_root->root_item, tree_root->node); tree_root->commit_root = btrfs_root_node(tree_root); - extent_root->fs_info = fs_info; ret = find_and_setup_root(tree_root, fs_info, BTRFS_EXTENT_TREE_OBJECTID, extent_root); if (ret) goto recovery_tree_root; extent_root->track_dirty = 1; - dev_root->fs_info = fs_info; ret = find_and_setup_root(tree_root, fs_info, BTRFS_DEV_TREE_OBJECTID, dev_root); if (ret) goto recovery_tree_root; dev_root->track_dirty = 1; - csum_root->fs_info = fs_info; ret = find_and_setup_root(tree_root, fs_info, BTRFS_CSUM_TREE_OBJECTID, csum_root); if (ret) |