On Tue, 2009-08-04 at 22:26 +0200, Andi Kleen wrote: > Trond, > > Any particular reason ->migratepage is not enabled for > the nfs file aops? > > Is it known to be unsafe to move NFS buffer pages at runtime? > > I have a similar requirement for memory error handling. > > Thanks, > > -Andi Hi Andi, I don't think there are any fundamental problems with migrating NFS page cache pages. In order to handle dirty pages, we'd need to write the equivalent of buffer_migrate_page() in order to transfer the private data, lock and update the 'struct nfs_page' that tracks the page's dirty area. The only thing I'm not 100% sure about is fscache, but I think the correct thing is just to call nfs_fscache_release_page(). David? Cheers Trond -- Trond Myklebust Linux NFS client maintainer NetApp Trond.Myklebust@xxxxxxxxxx www.netapp.com -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
