Messages in this thread | | | Date | Thu, 24 Apr 2008 00:05:45 +0300 | From | Avi Kivity <> | Subject | Re: [PATCH 04 of 12] Moves all mmu notifier methods outside the PT lock (first and not last |
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Robin Holt wrote: >> an hurry like we are, we can't progress without this. Infact we can >> > > SGI is under an equally strict timeline. We really needed the sleeping > version into 2.6.26. We may still be able to get this accepted by > vendor distros if we make 2.6.27. >
The difference is that the non-sleeping variant can be shown not to affect stability or performance, even if configed in, as long as its not used. The sleeping variant will raise performance and stability concerns.
I have zero objections to sleeping mmu notifiers; I only object to tying the schedules of the two together.
-- Do not meddle in the internals of kernels, for they are subtle and quick to panic.
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