Re: How to reclaim inode pages on demand

[Andrew Morton <akpm@osdl.org>]

Mel Gorman <mel@csn.ul.ie> wrote:
>
> On Mon, 8 Aug 2005, Andrew Morton wrote:
> 
> > Mel Gorman <mel@csn.ul.ie> wrote:
> > >
> > > Hi,
> > >
> > > I am working on a direct reclaim strategy to free up large blocks of
> > > contiguous pages. The part I have is working fine, but I am finding a
> > > hundreds of pages that are being used for inodes that I need to reclaim. I
> > > tried purging the inode lists using a variation of prune_icache() but it
> > > is not working out.
> > >
> > > Given a struct page, that one knows is an inode, can anyone suggest the
> > > best way to find the inode using it and free it?
> >
> > Simple answer: invalidate_mapping_pages(page->mapping, start, end).
> >
> 
> The majority of pages I am seeing no longer have page->mapping set. Does
> this mean they are in the process of being cleared up?

They're just anonymous pages, aren't they?  But you said "pages that are
being used for inodes".  Confused.