linux-kernel - Re: [fuse-devel] [PATCH 14/14] mm: Account for WRITEBACK_TEMP in balance_dirty

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Message-ID: <CAJfpegucNfxYsz3G2JwxK5JtDPaYQu-SUR_VGvwCDz_iTGBt5Q@mail.gmail.com>
Date:	Tue, 7 May 2013 13:39:19 +0200
From:	Miklos Szeredi <miklos@...redi.hu>
To:	"Maxim V. Patlasov" <mpatlasov@...allels.com>
Cc:	Kirill Korotaev <dev@...allels.com>,
	Pavel Emelianov <xemul@...allels.com>,
	"fuse-devel@...ts.sourceforge.net" <fuse-devel@...ts.sourceforge.net>,
	Kernel Mailing List <linux-kernel@...r.kernel.org>,
	James Bottomley <jbottomley@...allels.com>,
	Al Viro <viro@...iv.linux.org.uk>,
	Linux-Fsdevel <linux-fsdevel@...r.kernel.org>, devel@...nvz.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	fengguang.wu@...el.com, Mel Gorman <mgorman@...e.de>,
	riel@...hat.com, hughd@...gle.com, gthelen@...gle.com,
	linux-mm@...ck.org
Subject: Re: [fuse-devel] [PATCH 14/14] mm: Account for WRITEBACK_TEMP in balance_dirty_pages

On Fri, Apr 26, 2013 at 7:44 PM, Maxim V. Patlasov
<mpatlasov@...allels.com> wrote:
> I'm for accounting NR_WRITEBACK_TEMP because balance_dirty_pages is already
> overcomplicated (imho) and adding new clauses for FUSE makes me sick.

Agreed.

But instead of further complexifying balance_dirty_pages() fuse
specific throttling can be done in fuse_page_mkwrite(), I think.

And at that point NR_WRITEBACK_TEMP really becomes irrelevant to the
dirty balancing logic.

Thanks,
Miklos
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