linux-kernel - Re: Disabling in-memory write cache for x86-64 in Linux II

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Message-Id: <20131029134346.9e5873bae3630e9a69891773@linux-foundation.org>
Date:	Tue, 29 Oct 2013 13:43:46 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Jan Kara <jack@...e.cz>
Cc:	Karl Kiniger <karl.kiniger@....ge.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"Artem S. Tashkinov" <t.artem@...os.com>,
	Wu Fengguang <fengguang.wu@...el.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Disabling in-memory write cache for x86-64 in Linux II

On Tue, 29 Oct 2013 21:30:50 +0100 Jan Kara <jack@...e.cz> wrote:

> Andrew has queued up a patch series from Maxim Patlasov which removes this
> caveat but currently we don't have a way admin can switch that from
> userspace. But I'd like to have that tunable from userspace exactly for the
> cases as you describe below.

This?

commit 5a53748568f79641eaf40e41081a2f4987f005c2
Author:     Maxim Patlasov <mpatlasov@...allels.com>
AuthorDate: Wed Sep 11 14:22:46 2013 -0700
Commit:     Linus Torvalds <torvalds@...ux-foundation.org>
CommitDate: Wed Sep 11 15:58:04 2013 -0700

    mm/page-writeback.c: add strictlimit feature

That's already in mainline, for 3.12.
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