On Tue, Aug 14, 2007 at 08:30:21AM -0700, Christoph Lameter wrote:
> This is the extended version of the reclaim patchset. It enables reclaim from
> clean file backed pages during GFP_ATOMIC allocs. A bit invasive since
> may locks must now be taken with saving flags. But it works.
>
> Tested by repeatedly allocating 12MB of memory from the timer interrupt.
>
> --
Just to clarify... I can see how recursive reclaim can prevent memory getting
eaten up by reclaim (which thus causes allocations from interrupt handlers to
fail)...
But this patchset I don't see will do anything to prevent reclaim deadlocks,
right? (because if there is reclaimable memory at hand, then kswapd should
eventually reclaim it).
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