linux-kernel - Re: [PATCH] btrfs ulist use rbtree instead

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Date:	Thu, 4 Oct 2012 11:26:44 +0200
From:	David Sterba <dave@...os.cz>
To:	Rock Lee <zimilo@...e-trick.com>
Cc:	chris.mason@...ionio.com, linux-btrfs@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] btrfs ulist use rbtree instead

> @@ -207,16 +266,23 @@ EXPORT_SYMBOL(ulist_add);
>   * end is reached. No guarantee is made with respect to the order in which
>   * the elements are returned. They might neither be returned in order of
>   * addition nor in ascending order.
> - * It is allowed to call ulist_add during an enumeration. Newly added items
> - * are guaranteed to show up in the running enumeration.
>   */
>  struct ulist_node *ulist_next(struct ulist *ulist, struct ulist_iterator *uiter)

Quick observation:

If there's code relying on the behaviour stated in the removed part of
the comment, it will break. Have you verified this is not the case?


david
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