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

Christoph Lameter
2007-08-20T21:17:39Z

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.