linux-kernel - Re: Change in default vm_dirty

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Message-ID: <467AAD3C.8020200@rtr.ca>
Date:	Thu, 21 Jun 2007 12:54:20 -0400
From:	Mark Lord <lkml@....ca>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Peter Zijlstra <peterz@...radead.org>, davej@...hat.com,
	tim.c.chen@...ux.intel.com, linux-kernel@...r.kernel.org,
	torvalds@...ux-foundation.org
Subject: Re: Change in default vm_dirty_ratio

Andrew Morton wrote:
>
> What do we actually want the kernel to *do*?  Stated in terms of "when the
> dirty memory state is A, do B" and "when userspace does C, the kernel should
> do D".

When we have dirty pages awaiting write-out,
and the write-out device is completely idle,
then we should be writing them out.

That's the easy bit taken care of.  ;)
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