Re: [PATCH] mm: inactive-clean list
From: Christoph Lameter
Date: Tue Jul 18 2006 - 10:43:52 EST
On Tue, 18 Jul 2006, Andrew Morton wrote:
> Christoph Lameter <clameter@xxxxxxx> wrote:
> > What other types of non freeable pages could exist?
> PageWriteback() pages (potentially all of memory)
Doesnt write throttling take care of that?
> Pinned pages (various transient conditions, mainly get_user_pages())
> Some pages whose buffers are attached to an ext3 journal.
These are just pinned by an increased refcount right?
> Possibly NFS unstable pages.
These are tracked by NR_NFS_UNSTABLE.
Maybe we need a NR_UNSTABLE that includes pinned pages?
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