On Wed, Apr 01, 2015 at 08:49:54PM -0700, Omar Sandoval wrote: > Hm, yeah, that's unfortunate, thanks for pointing that out. It looks > like we can get the subvolume ID reliably: > > ---- > diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c > index 05fef19..a74ddb3 100644 > --- a/fs/btrfs/super.c > +++ b/fs/btrfs/super.c > @@ -1024,6 +1024,8 @@ static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry) > struct btrfs_root *root = info->tree_root; > char *compress_type; > > + seq_printf(seq, ",subvolid=%llu", > + BTRFS_I(d_inode(dentry))->root->root_key.objectid); yes, subvolid is reliable, but not very friendly from users' POV. I'd like to see subvol=/path there. Possibly we can have both. -- 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
