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SubjectRe: Comment on patch to remove nr_async_pages limit
Ed Tomlinson <> writes:

> Maybe we can have the best of both worlds. Is it possible to allocate the BH
> early and then defer the IO? The idea being to make IO possible without having
> to allocate. This would let us remove the async page limit but would ensure
> we could still free.

Yes, this is a good idea if you ask me. Basically, to remove as many
limits as we can, and also to secure us from the deadlocks. With just
a few pages of extra memory for the reserved buffer heads, I think
it's a fair game. Still, pending further analysis...
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