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Message-ID: <4B2BF38F.3090101@zytor.com> Date: Fri, 18 Dec 2009 13:26:39 -0800 From: "H. Peter Anvin" <hpa@...or.com> To: Yinghai Lu <yinghai@...nel.org> CC: Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>, Andrew Morton <akpm@...ux-foundation.org>, Jesse Barnes <jbarnes@...tuousgeek.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: [PATCH 1/9] x86: move range related operation to one file On 12/18/2009 12:17 PM, Yinghai Lu wrote: > > yes here is we have [start, end] instead of [start, end) > > those range operation is used for one purpose: > add several ranges, and subtract some other ranges, it will take out overlap between those two sets. > and leave out the range that could be used. > > and it is array based...for early stage. > Yes. We should be able to use the *exact same code* for the e820 ranges, using the e820 attribute as the attribute parameters, and a simple boolean for the case where all you want is inclusion/exclusion. And yes, I agree array based is the right thing to do for the early code. Note that my array-based version only had an insert operation, no delete operation -- that is because the delete operation is simply an insert operation of attribute 0. -hpa -- 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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