linux-kernel - Re: [PATCH] ublk: check for unprivileged daemon on each I/O fetch

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-ID: <aJgB4q0qJ5wFf_Fh@fedora>
Date: Sun, 10 Aug 2025 10:20:18 +0800
From: Ming Lei <ming.lei@...hat.com>
To: Caleb Sander Mateos <csander@...estorage.com>
Cc: Jens Axboe <axboe@...nel.dk>, Uday Shankar <ushankar@...estorage.com>,
	linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ublk: check for unprivileged daemon on each I/O fetch

On Fri, Aug 08, 2025 at 09:52:15AM -0600, Caleb Sander Mateos wrote:
> Commit ab03a61c6614 ("ublk: have a per-io daemon instead of a per-queue
> daemon") allowed each ublk I/O to have an independent daemon task.
> However, nr_privileged_daemon is only computed based on whether the last
> I/O fetched in each ublk queue has an unprivileged daemon task.
> Fix this by checking whether every fetched I/O's daemon is privileged.
> Change nr_privileged_daemon from a count of queues to a boolean
> indicating whether any I/Os have an unprivileged daemon.
> 
> Signed-off-by: Caleb Sander Mateos <csander@...estorage.com>
> Fixes: ab03a61c6614 ("ublk: have a per-io daemon instead of a per-queue daemon")

Looks fine,

Reviewed-by: Ming Lei <ming.lei@...hat.com>

Thanks,
Ming