On Tue, Jul 15, 2014 at 04:07:03PM -0700, Luis R. Rodriguez wrote: > From: "Luis R. Rodriguez" <mcgrof@xxxxxxxx> > > ustat() does not work for btrfs, the reason is the VFS layer > cannot get to the super block from the anonymous bdevs. The > way these are used within btrfs though are to actually use a > series of them per superblock. This modifies the way the > VFS exposes these bdevs by pegging them onto the super > block on a linked list. This should also allow us to grow > the subdevices on the super block with any other information > that might be better suited underneath so that the VFS > layer is aware. If this approach is reasonable then perhaps > we should next remove the exported symbol for get_anon_bdev() > as btrfs was the only user. > Based on some private review I got this can be simplified leaving the embedded the struct on the fs data structure and just using it to expose it on the VFS. Will send a v2. Luis -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
