On Wed, Jun 17, 2015 at 07:56:02PM -0400, Dan Williams wrote: > Upon detection of a read-only backing device arrange for the btt to > device to be read only. Implement a catch for the BLKROSET ioctl and > only allow a btt-instance to become read-write when the backing-device > becomes read-write. Conversely, if a backing-device becomes read-only > arrange for its parent btt to be marked read-only. Synchronize these > changes under the bus lock.
Eww. I have to say the deeper I look into this code the more I hate the stacking nature of btt. It seems more and more we should never attach pmem if we want to use a device with btt. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in Please read the FAQ at http://www.tux.org/lkml/
