[LSF/MM TOPIC] filesystems, btrfs, cgroups, debugging tools

[Chris Mason <clm@xxxxxx>]

Hi everyone,

I'm really looking forward to LSF/MM this year.  I can bring along a 
fair amount of data from production about benchmarking and stability.

We've been expanding our btrfs rollout, and we're also fixing up 
priority inversions when cgroup IO controllers are put in place.  I 
think we have btrfs fixed up, but ext4 seems to be incompatible with IO 
controllers due to data=ordered IO.  We haven't tried XFS with the 
controllers yet but I don't think there will be any major blockers there.

I'm also hoping filesystem slab shrinking gets into the agenda, since we 
have a few ugly hacks there to keep production happy.

Thanks,
Chris