Re: [patch 1/7] cpusets: add dirty map to struct address_space

[Peter Zijlstra <peterz@infradead.org>]

On Tue, 2008-10-28 at 09:08 -0700, David Rientjes wrote:
> @@ -487,6 +488,12 @@ void generic_sync_sb_inodes(struct super_block *sb,
>                         continue;               /* blockdev has wrong queue */
>                 }
>  
> +               if (!cpuset_intersects_dirty_nodes(mapping, wbc->nodes)) {
> +                       /* No node pages under writeback */
> +                       requeue_io(inode);
> +                       continue;
> +               }

So, aside from all the dirty limit and passing node masks around, this
is the magic bit?

I totally missed it first time around, a short mention in the changelog
might not be undeserved.