On Thu, Aug 08, 2013 at 05:13:49AM -0700, Christoph Hellwig wrote:
> On Wed, Aug 07, 2013 at 04:51:46PM -0400, Josef Bacik wrote:
> > Not possible, this will break other things as subvolumes have their own 
> > inode
> > space, it will confuse applications that get multiples of an inode number 
> > for
> > different devices with the same st_dev.  Each subvolume has it's own 
> > anonymous
> > dev to segregate things.  Thanks,
> 
> Yes, it's the same old issue of btrfs volumes misbehaving, and the
> solution is still the same as 5 years ago: make sure each subvolume
> has it's own sb, vfsmount and gets automounted, similar to what nfs4
> does for this case.

This won't work, try having 10000 subvolumes with dirty inodes and do sync then
go skiing, you'll have time :).  Thanks,

Josef
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