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Date: Fri, 28 Nov 2008 13:51:25 +0000 From: Alan Cox <alan@...rguk.ukuu.org.uk> To: Dmitri Monakhov <dmonakhov@...nvz.org> Cc: Izik Eidus <ieidus@...hat.com>, akpm@...ux-foundation.org, linux-kernel@...r.kernel.org, linux-mm@...ck.org, kvm@...r.kernel.org, aarcange@...hat.com, chrisw@...hat.com, avi@...hat.com, dlaor@...hat.com, kamezawa.hiroyu@...fujitsu.com, cl@...ux-foundation.org, corbet@....net Subject: Re: [PATCH 0/4] ksm - dynamic page sharing driver for linux v2 > You have implemented second one, but seems it already was patented > http://www.google.com/patents?vid=USPAT6789156 > I'm not a lawyer but IMHO we have direct conflict here. > >From other point of view they have patented the WEEL, but at least we > have to know about this. Its an old idea and appeared for Linux in March 1998: Little project from Philipp Reisner called "mergemem". http://groups.google.com/group/muc.lists.linux-kernel/browse_thread/thread/387af278089c7066?ie=utf-8&oe=utf-8&q=share+identical+pages#b3d4f68fb5dd4f88 so if there is a patent which is relevant (and thats a question for lawyers and legal patent search people) perhaps the Linux Foundation and some of the patent busters could take a look at mergemem and re-examination. Alan -- 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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