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Message-ID: <20070327002324.GU32597093@melbourne.sgi.com> Date: Tue, 27 Mar 2007 11:23:24 +1100 From: David Chinner <dgc@....com> To: Andrew Morton <akpm@...ux-foundation.org> Cc: Miklos Szeredi <miklos@...redi.hu>, dgc@....com, linux-kernel@...r.kernel.org Subject: Re: [patch 1/3] fix illogical behavior in balance_dirty_pages() On Mon, Mar 26, 2007 at 01:01:24AM -0800, Andrew Morton wrote: > On Mon, 26 Mar 2007 10:26:18 +0200 Miklos Szeredi <miklos@...redi.hu> wrote: > > Ditto for the case, when there are no more dirty pages destined for > > this queue. > > > > I understand, that this can fill up the memory with under writeback > > pages, but only if the data sitting in all the device queues is > > comparable to the total memory. I don't know what the realistic > > chance of that is but David Chinner convinced me, that it's not > > something that happens in real life. Quoting him from an earlier > > mail: > > > > | Right, and most ppl don't have enough devices in their system for > > | this to be a problem. Even those of us that do have enough devices > > | for this to potentially be a problem usually have enough RAM in > > | the machine so that it is not a problem.... > > > > David is overoptimistic ;) My excuse is that I have trouble thinking in units of memory smaller than a GB. ;) Cheers, Dave. -- Dave Chinner Principal Engineer SGI Australian Software Group - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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