linux-kernel - Re: remap_file

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Message-ID: <20140519212416.GA14152@node.dhcp.inet.fi>
Date:	Tue, 20 May 2014 00:24:16 +0300
From:	"Kirill A. Shutemov" <kirill@...temov.name>
To:	Kenny Simpson <theonetruekenny@...il.com>
Cc:	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Michal Hocko <mhocko@...e.cz>, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Dave Jones <davej@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Armin Rigo <arigo@...es.org>
Subject: Re: remap_file_pages() use

On Mon, May 19, 2014 at 01:34:05PM -0400, Kenny Simpson wrote:
> For the other cases I had used the remapping to have more of a sliding
> window over a disk-backed file where I also was using aliasing to
> eliminate the corner cases of hitting the end of a window and needing
> to split records due to crossing boundaries, etc..

Disk backed files are not supported by remap_file_pages() since 2007.
See commit 3ee6dafc677a.

-- 
 Kirill A. Shutemov
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