Re: [PATCH 0/4] ksm - dynamic page sharing driver for linux v2

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From: Alan Cox
Date: Friday, November 28, 2008 - 6:51 am

> You have implemented second one, but seems it already was patented

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/387af278089...

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
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Messages in current thread:
[PATCH 1/4] Rmap: Add page_wrprotect() function., Izik Eidus, (Sun Nov 16, 7:20 pm)
[PATCH 3/4] add ksm kernel shared memory driver., Izik Eidus, (Sun Nov 16, 7:20 pm)
[PATCH 4/4] MMU_NOTIFIRES: add set_pte_at_notify(), Izik Eidus, (Sun Nov 16, 7:20 pm)
Re: [PATCH 0/4] ksm - dynamic page sharing driver for linux v2, Alan Cox, (Fri Nov 28, 6:51 am)