linux-ext4 - Re: [PATCH v3] ext4: Rewrite ext4_page

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Message-ID: <20110623115144.GA13776@infradead.org>
Date:	Thu, 23 Jun 2011 07:51:44 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Jan Kara <jack@...e.cz>
Cc:	Ted Tso <tytso@....edu>, linux-ext4@...r.kernel.org
Subject: Re: [PATCH v3] ext4: Rewrite ext4_page_mkwrite() to use generic
 helpers

On Thu, Jun 23, 2011 at 01:09:18PM +0200, Jan Kara wrote:
> > more readable, even if there is a tiny amount of code duplication.
>   The trouble is that ext4 falls backs to standard allocation instead of
> delayed allocation when we run low on free space. So complete separation
> of these two cases is not possible. Also inode data journal flag can be
> set on the fly so we have to check it even in delalloc mkwrite
> implementation.

Yikes!  Ok, in that case there's no benefit in doing the split.

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