From: Al Viro <viro@ZenIV.linux.org.uk>
Subject: Re: [PATCH] vfs: pass struct file to do_truncate on O_TRUNC opens
Date: Mon, 15 Mar 2010 22:50:37 +0000
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Cc: Trond Myklebust <trond.myklebust@fys.uio.no>,
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To: Jeff Layton <jlayton@redhat.com>
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On Mon, Mar 15, 2010 at 06:47:02PM -0400, Jeff Layton wrote:

> Yeah that would be cleaner on the wire for the create case. It's not
> clear to me how to implement that though. There doesn't appear to be
> a straightforward way to tell the VFS to skip the truncate.

The plan is to turn most of the guts of do_last() into fs method...