Re: [PATCH v4 0/4] rust: configfs abstractions

[Daniel Almeida <daniel.almeida@collabora.com>]

Hi Andreas, FYI:

Tested-by: Daniel Almeida <daniel.almeida@collabora.com>

i.e.:

```
sudo cat /mnt/rust_configfs/message 
[  234.971000] rust_configfs: Show message
Hello World

sudo cat /mnt/rust_configfs/bar
[  335.542585] rust_configfs: Show bar

sudo sh -c "echo new_bar > /mnt/rust_configfs/bar"
[  382.114901] rust_configfs: Store bar

sudo cat /mnt/rust_configfs/bar
[  401.348487] rust_configfs: Show bar
new_bar

sudo mkdir /mnt/rust_configfs/child

sudo ls /mnt/rust_configfs/
bar      child/   message

sudo ls /mnt/rust_configfs/child/
baz

sudo cat /mnt/rust_configfs/child/baz 
[  600.651618] rust_configfs: Show baz
Hello Baz

sudo mkdir /mnt/rust_configfs/child/grandchild

sudo ls /mnt/rust_configfs/child/grandchild/
gc

sudo cat /mnt/rust_configfs/child/grandchild/gc
[  670.093647] rust_configfs: Show baz
Hello GC
```

Is that last one (for the grandchild) really supposed to print “Show baz” ?

Please let me know if there’s anything else needed to test this fully. A review will soon follow.

— Daniel