linux-kernel - Re: [PATCH 04/10] AXFS: axfs

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Message-ID: <48AE32AE.9010901@lougher.demon.co.uk>
Date:	Fri, 22 Aug 2008 04:29:50 +0100
From:	Phillip Lougher <phillip@...gher.demon.co.uk>
To:	Jared Hulbert <jaredeh@...il.com>
CC:	Arnd Bergmann <arnd@...db.de>, Linux-kernel@...r.kernel.org,
	linux-embedded@...r.kernel.org,
	linux-mtd <linux-mtd@...ts.infradead.org>,
	Jörn Engel <joern@...fs.org>,
	tim.bird@...sony.com, cotte@...ibm.com, nickpiggin@...oo.com.au
Subject: Re: [PATCH 04/10] AXFS: axfs_inode.c

Jared Hulbert wrote:

> 
> The memcpy in question copies a c_node to the page.  The len is either
> the max length of a c_node and size of the buffer I'm copying to
> (PAGE_CACHE_SIZE) or it is the difference between the beginning of the
> c_node in the c_block and the end of the c_block, whichever is
> smaller.  The confusion is probably because of the fact that this
> copies extra crap to the page for tails.


Ah yes, that's where I got confused :)  Glad to see AXFS uses tail packing.


Phillip
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