Re: [PATCH 0/4] linux-2.6-block: deactivating pagecache for benchmarks

Badari Pulavarty
2005-12-02T22:33:37Z

On Fri, 2005-12-02 at 13:44 -0800, Andrew Morton wrote:
> Badari Pulavarty <pbadari@us.ibm.com> wrote:
> >
> > Wondering, if this shrinks shared memory pages (since they are backed by
> > tmpfs) ? (which is not what I want).
>
> It'll reclaim unused pagecache pages. What effect that has on
> idioticfs^Wtmpfs pages depends on the state of the pages. If they're
> attached to tmpfs inodes then they won't be reclaimed because they have no
> backing store. If they're attached to swapcache then they won't be
> reclaimed because they have no superblock.
>
> So I guess you got lucky.

Wow !! Thank you. Its not that often, I get lucky :)

Thanks,
Badari