Re: [PATCH v2] vmscan: limit concurrent reclaimers in shrink_zone

[Rik van Riel]

On 12/18/2009 08:38 AM, Avi Kivity wrote:

> > + /* Number of processes running page reclaim code on this zone. */
> > + atomic_t concurrent_reclaimers;
> > + wait_queue_head_t reclaim_wait;
> > +
>
> Counting semaphore?

I don't see a safe way to adjust a counting semaphore
through /proc/sys.

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