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SubjectRe: patch for 2.1.110 misc memory reclamation
On Wed, 22 Jul 1998, Bill Hawes wrote:

> I found another batch of reclaimable pages squirrelled away, this time
> in the nfs client dircache. The attached patch adds a new routine
> nfs_trim_dircache() to allow the vm system to reclaim the memory.
>
> The combined effect of the patch makes over 40 extra pages now available
> to the system, so it's starting to add up to something worthwhile.
> Comments and testing welcome ...

I believe this patch is the right way to go for low-mem situations.
It also might alleviate some fragmentation problems, since (in
2.1.89) some folks got swap-deaths in which 80% of memory was
freed but no two contiguous large areas could be found. The only
conclusion is that there still were some 'unswappable' things
left. With your patch the number of unswappable things is reduced
and thereby the number of fragmentation problems should also become
less.

Linus, this patch looks good and 'obviously correct' to me; maybe
you should consider integrating it when the balancing issues wrt.
this patch are done?

Rik.
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