linux-ext4 - Re: [PATCH v2] ext4: remove the entry from es tree when bigalloc is enabled

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Message-ID: <20130729162151.GH11816@thunk.org>
Date:	Mon, 29 Jul 2013 12:21:51 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	Zheng Liu <gnehzuil.liu@...il.com>
Cc:	linux-ext4@...r.kernel.org, Jan Kara <jack@...e.cz>,
	Zheng Liu <wenqing.lz@...bao.com>
Subject: Re: [PATCH v2] ext4: remove the entry from es tree when bigalloc is
 enabled

On Fri, Jul 26, 2013 at 07:42:06AM +0800, Zheng Liu wrote:
> From: Jan Kara <jack@...e.cz>
> 
> Now in ext4_da_page_release_reservation() we remove the entry from es
> tree if to_release != 0.  But there are two issues.  One is that it is
> wrong when blocksize != pagesize,

The commit description says that this is wrong, but I don't see
anything in the patch which addresses this.  And could you state what
the impact is of this wrongness?

Thanks,

						- Ted
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