linux-kernel - Re: [PATCH v2 1/6] dax: Add block size note to documentation

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Message-ID: <20150704050329.GA22452@infradead.org>
Date:	Fri, 3 Jul 2015 22:03:29 -0700
From:	Christoph Hellwig <hch@...radead.org>
To:	Matthew Wilcox <matthew.r.wilcox@...el.com>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Matthew Wilcox <willy@...ux.intel.com>
Subject: Re: [PATCH v2 1/6] dax: Add block size note to documentation

On Fri, Jul 03, 2015 at 10:40:38AM -0400, Matthew Wilcox wrote:
> From: Matthew Wilcox <willy@...ux.intel.com>
> 
> For block devices which are small enough, mkfs will default to creating
> a filesystem with block sizes smaller than page size.

This seems like an odd note.  At least for XFS and btrfs filesystem size
don't change block sizes.  ff this is an extN oddity you're probably
better off documenting it there.

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