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btrfs: Remove extra reference count bumps in btrfs_compare_trees
When the 2 comparison trees roots are initialised they are private to the function and already have reference counts of 1 each. There is no need to further increment the reference count since the cloned buffers are already accessed via struct btrfs_path. Eventually the 2 paths used for comparison are going to be released, effectively disposing of the cloned buffers. Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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1 changed files with 0 additions and 2 deletions
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@ -5388,7 +5388,6 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
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ret = -ENOMEM;
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goto out;
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}
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extent_buffer_get(left_path->nodes[left_level]);
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right_level = btrfs_header_level(right_root->commit_root);
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right_root_level = right_level;
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@ -5399,7 +5398,6 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
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ret = -ENOMEM;
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goto out;
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}
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extent_buffer_get(right_path->nodes[right_level]);
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up_read(&fs_info->commit_root_sem);
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if (left_level == 0)
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