Re: [patch 2/5] setup_per_zone_lowmem_reserve() oops fix

[Andrea Arcangeli]

On Mon, Mar 07, 2005 at 12:20:48AM -0800, Andrew Morton wrote:
> I haven't thought about it yet, but there must be some way to avoid leaving
> huge amounts of lowmem free.  It should be OK to allow lowmem to be fully
> used, as long as there's sufficent reclaimable stuff in there - slab,
> blockdev pagecache, etc.  (Assuming nothing sane mmaps blockdevs.  INND
> does).  Dunno....

Then mlock will have to unmap and migrate the cache, it's just much more
complicated, but it's certainly doable.
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