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Diffstat (limited to 'fs/btrfs/disk-io.c')
-rw-r--r--fs/btrfs/disk-io.c42
1 files changed, 18 insertions, 24 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 102c176fc29c..62afe5c5694e 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1890,31 +1890,32 @@ struct btrfs_root *open_ctree(struct super_block *sb,
u64 features;
struct btrfs_key location;
struct buffer_head *bh;
- struct btrfs_root *extent_root = kzalloc(sizeof(struct btrfs_root),
- GFP_NOFS);
- struct btrfs_root *csum_root = kzalloc(sizeof(struct btrfs_root),
- GFP_NOFS);
+ struct btrfs_super_block *disk_super;
struct btrfs_root *tree_root = btrfs_sb(sb);
- struct btrfs_fs_info *fs_info = NULL;
- struct btrfs_root *chunk_root = kzalloc(sizeof(struct btrfs_root),
- GFP_NOFS);
- struct btrfs_root *dev_root = kzalloc(sizeof(struct btrfs_root),
- GFP_NOFS);
+ struct btrfs_fs_info *fs_info = tree_root->fs_info;
+ struct btrfs_root *extent_root;
+ struct btrfs_root *csum_root;
+ struct btrfs_root *chunk_root;
+ struct btrfs_root *dev_root;
struct btrfs_root *log_tree_root;
-
int ret;
int err = -EINVAL;
int num_backups_tried = 0;
int backup_index = 0;
- struct btrfs_super_block *disk_super;
+ extent_root = fs_info->extent_root =
+ kzalloc(sizeof(struct btrfs_root), GFP_NOFS);
+ csum_root = fs_info->csum_root =
+ kzalloc(sizeof(struct btrfs_root), GFP_NOFS);
+ chunk_root = fs_info->chunk_root =
+ kzalloc(sizeof(struct btrfs_root), GFP_NOFS);
+ dev_root = fs_info->dev_root =
+ kzalloc(sizeof(struct btrfs_root), GFP_NOFS);
- if (!extent_root || !tree_root || !tree_root->fs_info ||
- !chunk_root || !dev_root || !csum_root) {
+ if (!extent_root || !csum_root || !chunk_root || !dev_root) {
err = -ENOMEM;
goto fail;
}
- fs_info = tree_root->fs_info;
ret = init_srcu_struct(&fs_info->subvol_srcu);
if (ret) {
@@ -1954,12 +1955,6 @@ struct btrfs_root *open_ctree(struct super_block *sb,
mutex_init(&fs_info->reloc_mutex);
init_completion(&fs_info->kobj_unregister);
- fs_info->tree_root = tree_root;
- fs_info->extent_root = extent_root;
- fs_info->csum_root = csum_root;
- fs_info->chunk_root = chunk_root;
- fs_info->dev_root = dev_root;
- fs_info->fs_devices = fs_devices;
INIT_LIST_HEAD(&fs_info->dirty_cowonly_roots);
INIT_LIST_HEAD(&fs_info->space_info);
btrfs_mapping_init(&fs_info->mapping_tree);
@@ -2465,21 +2460,20 @@ fail_sb_buffer:
btrfs_stop_workers(&fs_info->caching_workers);
fail_alloc:
fail_iput:
+ btrfs_mapping_tree_free(&fs_info->mapping_tree);
+
invalidate_inode_pages2(fs_info->btree_inode->i_mapping);
iput(fs_info->btree_inode);
-
- btrfs_close_devices(fs_info->fs_devices);
- btrfs_mapping_tree_free(&fs_info->mapping_tree);
fail_bdi:
bdi_destroy(&fs_info->bdi);
fail_srcu:
cleanup_srcu_struct(&fs_info->subvol_srcu);
fail:
+ btrfs_close_devices(fs_info->fs_devices);
free_fs_info(fs_info);
return ERR_PTR(err);
recovery_tree_root:
-
if (!btrfs_test_opt(tree_root, RECOVERY))
goto fail_tree_roots;