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Date: Tue, 27 May 2014 14:27:28 +0400
From: Cyrill Gorcunov <gorcunov@gmail.com>
To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>, LKML <linux-kernel@vger.kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Pavel Emelyanov <xemul@parallels.com>
Subject: Re: [linux-next] splice call weird results
Message-ID: <20140527102728.GD20436@moon>
References: <20140527091335.GC20436@moon>
 <20140527102013.3BF61E009B@blue.fi.intel.com>
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On Tue, May 27, 2014 at 01:20:13PM +0300, Kirill A. Shutemov wrote:
> Cyrill Gorcunov wrote:
> > Hi! While been trying to run criu on linux-next (due to recent Kirill's patch related
> > to /proc/pid/clear_refs with THP enabled) I noticed that it fails dumping programs when
> > moves data from memory pages into an image file. So I wrote pretty idiotic test and
> > run it on current fedora 20 kernel and then on linux-next.
> > 
> 
> +Al. He reworked splice code in linux-next.

Thanks Kirill. Al, it looks like iter_file_splice_write no longer honor @len while
building kiocb vector but pushes as much as it can.