LOOP_CONFIGURE ioctl is used to setup and configure all loop device
parameters in a single step.
Add to the unix package a new function that exposes LOOP_CONFIGURE.
Fixes golang/go#63962
Change-Id: Ia169d268b52b1384febc6bff9c707b721ab2bb24
GitHub-Last-Rev: f9cc4c94cb654afd596df6e28a0d0a1bf60d15eb
GitHub-Pull-Request: golang/sys#181
Reviewed-on: https://go-review.googlesource.com/c/sys/+/540075
LUCI-TryBot-Result: Go LUCI <[email protected]>
Reviewed-by: David Chase <[email protected]>
Reviewed-by: Tobias Klauser <[email protected]>
Auto-Submit: Tobias Klauser <[email protected]>
Reviewed-by: Matthew Dempsky <[email protected]>
Run-TryBot: Tobias Klauser <[email protected]>
TryBot-Result: Gopher Robot <[email protected]>
