Messages in this thread | | | Date | Tue, 27 Mar 2007 03:20:33 -0400 | From | "Mike Frysinger" <> | Subject | Re: [PATCH -mm] Revoke core code: fix nommu arch compiling error bug |
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On 3/27/07, Pekka J Enberg <penberg@cs.helsinki.fi> wrote: > On Tue, 27 Mar 2007, Wu, Bryan wrote: > > Agree. MPU of Blackfin can provide some processes protection. But maybe > > at this moment just disable revoke for NOMMU is easier for further > > development. When we provide the MPU stuff, maybe we can enable the > > revoke for NOMMU but MPU arch. > > Yeah, MPU should be sufficient for revoke(). Note that mmap() and mummap() > suffers from the same problem on NOMMU so perhaps we really should do > CONFIG_MPU.
we would need both ... MPU gives us the ability to restrict access, but we'd still be unable to do fun things like COW -mike - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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