Re: readahead and oom

[Wu Fengguang]

On Tue, Apr 26, 2011 at 01:49:25PM +0800, Dave Young wrote:
> Hi,
> 
> When memory pressure is high, readahead could cause oom killing.
> IMHO we should stop readaheading under such circumstancesãIf it's true
> how to fix it?

Good question. Before OOM there will be readahead thrashings, which
can be addressed by this patch:

http://lkml.org/lkml/2010/2/2/229

However there seems no much interest on that feature.. I can separate
that out and resubmit it standalone if necessary.

Thanks,
Fengguang
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