btrfs: sanitizing ->fs_info, part 5
close_ctree() uses a weird mix of accesses to root->fs_info and its value at the beginning of function stored in local variable. Since ->fs_info *never* changes, let's just use the local variable to avoid confusion. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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@ -2982,7 +2982,7 @@ int close_ctree(struct btrfs_root *root)
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(atomic_read(&fs_info->defrag_running) == 0));
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/* clear out the rbtree of defraggable inodes */
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btrfs_run_defrag_inodes(root->fs_info);
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btrfs_run_defrag_inodes(fs_info);
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/*
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* Here come 2 situations when btrfs is broken to flip readonly:
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@ -3011,8 +3011,8 @@ int close_ctree(struct btrfs_root *root)
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btrfs_put_block_group_cache(fs_info);
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kthread_stop(root->fs_info->transaction_kthread);
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kthread_stop(root->fs_info->cleaner_kthread);
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kthread_stop(fs_info->transaction_kthread);
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kthread_stop(fs_info->cleaner_kthread);
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fs_info->closing = 2;
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smp_mb();
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@ -3030,14 +3030,14 @@ int close_ctree(struct btrfs_root *root)
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free_extent_buffer(fs_info->extent_root->commit_root);
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free_extent_buffer(fs_info->tree_root->node);
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free_extent_buffer(fs_info->tree_root->commit_root);
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free_extent_buffer(root->fs_info->chunk_root->node);
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free_extent_buffer(root->fs_info->chunk_root->commit_root);
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free_extent_buffer(root->fs_info->dev_root->node);
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free_extent_buffer(root->fs_info->dev_root->commit_root);
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free_extent_buffer(root->fs_info->csum_root->node);
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free_extent_buffer(root->fs_info->csum_root->commit_root);
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free_extent_buffer(fs_info->chunk_root->node);
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free_extent_buffer(fs_info->chunk_root->commit_root);
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free_extent_buffer(fs_info->dev_root->node);
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free_extent_buffer(fs_info->dev_root->commit_root);
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free_extent_buffer(fs_info->csum_root->node);
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free_extent_buffer(fs_info->csum_root->commit_root);
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btrfs_free_block_groups(root->fs_info);
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btrfs_free_block_groups(fs_info);
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del_fs_roots(fs_info);
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