Messages in this thread | | | Date | Sun, 3 Feb 2008 02:33:23 +0100 | From | Andrea Arcangeli <> | Subject | Re: [patch 1/3] mmu_notifier: Core code |
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On Thu, Jan 31, 2008 at 07:58:40PM -0800, Christoph Lameter wrote: > Ok. Andrea wanted the same because then he can void the begin callouts.
Exactly. I hope the page-pin will avoid me having to serialize the KVM page fault against the start/end critical section.
BTW, I wonder if the start/end critical section API is intended to forbid scheduling inside it. In short I wonder if GRU can is allowed to take a spinlock in _range_start as last thing before returning, and to release that same spinlock in _range_end as first thing, and not to be forced to use a mutex.
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