linux-kernel - Re: [PATCH v5 14/18] rnull: enable configuration via `configfs`

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Message-ID: <87frdtdkhi.fsf@t14s.mail-host-address-is-not-set>
Date: Fri, 15 Aug 2025 11:04:09 +0200
From: Andreas Hindborg <a.hindborg@...nel.org>
To: Alice Ryhl <aliceryhl@...gle.com>
Cc: Boqun Feng <boqun.feng@...il.com>, Miguel Ojeda <ojeda@...nel.org>, Alex
 Gaynor <alex.gaynor@...il.com>, Gary Guo <gary@...yguo.net>, Björn Roy
 Baron <bjorn3_gh@...tonmail.com>, Benno Lossin <lossin@...nel.org>, Trevor
 Gross <tmgross@...ch.edu>, Danilo Krummrich <dakr@...nel.org>, Jens Axboe
 <axboe@...nel.dk>, Breno Leitao <leitao@...ian.org>,
 linux-block@...r.kernel.org, rust-for-linux@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 14/18] rnull: enable configuration via `configfs`

"Alice Ryhl" <aliceryhl@...gle.com> writes:

> On Fri, Aug 15, 2025 at 09:30:49AM +0200, Andreas Hindborg wrote:
>> Allow rust null block devices to be configured and instantiated via
>> `configfs`.
>>
>> Signed-off-by: Andreas Hindborg <a.hindborg@...nel.org>
>
> Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>
>
>> +impl NullBlkDevice {
>> +    fn new(
>> +        name: &CStr,
>> +        block_size: u32,
>> +        rotational: bool,
>> +        capacity_mib: u64,
>> +    ) -> Result<GenDisk<Self>> {
>> +        let tagset = Arc::pin_init(TagSet::new(1, 256, 1), flags::GFP_KERNEL)?;
>
> GFP_KERNEL is in the prelude.

OK, thanks.


Best regards,
Andreas Hindborg