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From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [-mm PATCH] ocfs2: ->fallocate() support
Date: Sat, 30 Jun 2007 10:34:13 +0100
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Cc: Andrew Morton <akpm@linux-foundation.org>,
	Amit Arora <aarora@in.ibm.com>, linux-fsdevel@vger.kernel.org,
	ocfs2-devel@oss.oracle.com, xfs@oss.sgi.com
To: Mark Fasheh <mark.fasheh@oracle.com>
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On Thu, Jun 21, 2007 at 12:01:43PM -0700, Mark Fasheh wrote:
> Plug ocfs2 into the ->fallocate() callback. We only support FA_ALLOCATE for
> now - FA_DEALLOCATE will come later.

Btw, it seems like ocfs implements the xfs preallocation ioctls.  What
would people thing about moving those up to work over ->fallocate so they
can be used on all filesystems that support preallocation?  While the
ABI is quite ugly it has a huge userbase because it's the only existing
preallocation mechanism on Linux.