linux-kernel - Re: [PATCH rust-next v2 0/3] rust: miscdevice: add llseek support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <aPDGxz04OQgzRQqL@zeus>
Date: Thu, 16 Oct 2025 19:19:51 +0900
From: Ryosuke Yasuoka <ryasuoka@...hat.com>
To: Greg KH <gregkh@...uxfoundation.org>
Cc: arnd@...db.de, ojeda@...nel.org, alex.gaynor@...il.com,
	boqun.feng@...il.com, gary@...yguo.net, bjorn3_gh@...tonmail.com,
	lossin@...nel.org, a.hindborg@...nel.org, aliceryhl@...gle.com,
	tmgross@...ch.edu, dakr@...nel.org, viro@...iv.linux.org.uk,
	brauner@...nel.org, jack@...e.cz, rust-for-linux@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH rust-next v2 0/3] rust: miscdevice: add llseek support

On Wed, Oct 15, 2025 at 07:40:12AM +0200, Greg KH wrote:
> On Wed, Oct 15, 2025 at 01:02:40PM +0900, Ryosuke Yasuoka wrote:
> > Hi all,
> > 
> > This patch series add support for the llseek file operation to misc
> > devices written in Rust.
> 
> Cool, but what miscdevice driver needs llseek support?  Do you have a
> real user for this that we can see as well?

Currently no. Because lseek is one of fundamental functions for device
driver, I think it's valuable to add support. I believe we'll have real
users based on read, write, and this lseek support.

What do you think? Thank you for your comment.

Best regards,
Ryosuke

> thanks,
> 
> greg k-h
>