Re: [RFC 2/9] Use NOMEMALLOC reclaim to allow reclaim if PF_MEMALLOCis set

[Christoph Lameter]

On Mon, 20 Aug 2007, Peter Zijlstra wrote:

> > Its not that different.
> 
> Yes it is, disk based completion does not require memory, network based
> completion requires unbounded memory.

Disk based completion only require no memory if its not on a stack of 
other devices and if the interrupt handles is appropriately shaped. If 
there are multile levels below or there is some sort of complex 
completion handling then this also may require memory.
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