On Friday 25 January 2008 14:09, Shaohua Li wrote: > On Fri, 2008-01-25 at 14:03 +1100, Nick Piggin wrote: > > On Wednesday 23 January 2008 17:22, Shaohua Li wrote: > > > Anonymous page might have fs-private metadata, the page is truncated. > > > As the page hasn't mapping, page migration refuse to migrate the page. > > > It appears the page is only freed in page reclaim and if zone watermark > > > is low, the page is never freed, as a result migration always fail. I > > > thought we could free the metadata so such page can be freed in > > > migration and make migration more reliable? > > > > Anonymous pages should not have fs-private metadata. > > > > Orphaned pages I guess you mean? > > yes, maybe, but the comments in truncate_complete_page called the page > anonymous.
Ah, I see. I think we should use orphaned (or anything except anonymous) to describe these pages. -- 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/