On Wed, 7 Nov 2007, Rik van Riel wrote: > On Wed, 7 Nov 2007 10:06:10 -0800 (PST) > Christoph Lameter <[EMAIL PROTECTED]> wrote: > > > On Wed, 7 Nov 2007, Rik van Riel wrote: > > > > > How exactly can an anonymous page ever become file backed? > > > > When they get assigned a swap entry. > > That does not change their status. They're still swap backed.
If they are swap backed then they have a backing store on disk. They are file backed in some sense. > > > > Do ramfs pages count as memory backed? > > > > > > Since ramfs pages cannot be evicted from memory at all, they > > > should go into the "noreclaim" page set. > > > > Which LRU do they go on. > > With the patch set from last weekend, the file LRU. Argh. > With the patch set later this week, they'll be in the > "noreclaim" page set, which is never scanned by the VM. That sounds better. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
