Hi, I know there are corner cases that probably make this difficult (such as remounting the file system rw while a send is in progress), but it would be nice if one could send all subvolumes as long as a file system is mounted read-only (pretend every subvol ist read-only if the file system is mounted read-only). Background/use case: Through no fault of btrfs, metadata got damaged, which makes a file system go read-only after a while and I'd like to btrfs send/receive the subvolumes and snapshots that are still readable to another btrfs file system (btrfs send/receive being the only option that does this somewhat efficiently). Only I cannot send the subvolumes that are not set to read-only prior to the file system going read-only. I patched the kernel and btrfs-tools (just commenting the checks out) to support this in my case, but it would be great if this would be possible without patching. Regards, Martin Raiber
