On Sat, 2006-05-06 at 23:47 +1000, Nick Piggin wrote:

> Yep. Let's not distract from getting the basic mechanism working though.
> balance_dirty_pages would be patch 2..n ;)

Attached are both a new version of the shared_mapping_dirty patch, and
balance_dirty_pages; to be applied in that order. 

It makes my testcase survive and not OOM like it used to.

> BTW. It is unconventional (outside the read hints stuff) to use macros like
> this. I guess real VM hackers have to know what is intended by any given esoteric
> combination of flags in any given context.
> 
> Not that I hate it.
> 
> But if we're going to start using it, we should work out a sane convention and
> stick to it. "StudlyCaps" seem to be out of favour, and using a vma_ prefix would
> be more sensible.

Not a real fan of "StudlyCaps" myself either, just adapting to whatever
was there.

This macro was born because I find writing the same thing more than
twice a nuisance and errorprone. However if ppl feel otherwise I'm fine
with either writing it out explicitly or renaming the thing,
suggestions?

PeterZ