Re: [PATCH v2 1/2] loop: Report EOPNOTSUPP properly

[Bart Van Assche]

On Thu, 2019-02-07 at 12:57 -0800, Evan Green wrote:
+AD4 Properly plumb out EOPNOTSUPP from loop driver operations, which may
+AD4 get returned when for instance a discard operation is attempted but not
+AD4 supported by the underlying block device. Before this change, everything
+AD4 was reported in the log as an I/O error, which is scary and not
+AD4 helpful in debugging.

Reviewed-by: Bart Van Assche +ADw-bvanassche+AEA-acm.org+AD4