Re: [PATCH 12/12] vmscan: Do not writeback pages in direct reclaim

From: Christoph Hellwig
Date: Tue Jun 15 2010 - 09:37:52 EST

On Tue, Jun 15, 2010 at 09:34:18AM -0400, Rik van Riel wrote:
> If direct reclaim can overflow the stack, so can direct
> memcg reclaim. That means this patch does not solve the
> stack overflow, while admitting that we do need the
> ability to get specific pages flushed to disk from the
> pageout code.

Can you explain what the hell memcg reclaim is and why it needs
to reclaim from random contexts?
It seems everything that has a cg in it's name that I stumbled over
lately seems to be some ugly wart..

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