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

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Message-Id: <E12F1175-63AB-47BE-88E7-B6DA627DA8E6@collabora.com>
Date: Mon, 24 Feb 2025 13:55:59 -0300
From: Daniel Almeida <daniel.almeida@...labora.com>
To: Andreas Hindborg <a.hindborg@...nel.org>
Cc: Danilo Krummrich <dakr@...nel.org>,
 Miguel Ojeda <ojeda@...nel.org>,
 Alex Gaynor <alex.gaynor@...il.com>,
 Boqun Feng <boqun.feng@...il.com>,
 Gary Guo <gary@...yguo.net>,
 Björn Roy Baron <bjorn3_gh@...tonmail.com>,
 Benno Lossin <benno.lossin@...ton.me>,
 Alice Ryhl <aliceryhl@...gle.com>,
 Trevor Gross <tmgross@...ch.edu>,
 Joel Becker <jlbec@...lplan.org>,
 Christoph Hellwig <hch@....de>,
 Peter Zijlstra <peterz@...radead.org>,
 Ingo Molnar <mingo@...hat.com>,
 Will Deacon <will@...nel.org>,
 Waiman Long <longman@...hat.com>,
 Fiona Behrens <me@...enk.dev>,
 Charalampos Mitrodimas <charmitro@...teo.net>,
 rust-for-linux@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 0/4] rust: configfs abstractions

Hi Andreas, FYI:

Tested-by: Daniel Almeida <daniel.almeida@...labora.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