linux-kernel - Re: [PATCH 1/2] sched_ext: Fix ops.dequeue() semantics

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] [day] [month] [year] [list]

Message-ID: <aXDNJb-njXC1TzfG@gpd4>
Date: Wed, 21 Jan 2026 13:57:09 +0100
From: Andrea Righi <arighi@...dia.com>
To: Christian Loehle <christian.loehle@....com>
Cc: Tejun Heo <tj@...nel.org>, David Vernet <void@...ifault.com>,
	Changwoo Min <changwoo@...lia.com>,
	Emil Tsalapatis <emil@...alapatis.com>,
	Daniel Hodges <hodgesd@...a.com>, sched-ext@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] sched_ext: Fix ops.dequeue() semantics

On Wed, Jan 21, 2026 at 12:54:42PM +0000, Christian Loehle wrote:
...
> > This allows BPF schedulers to:
> > - reliably track task ownership and lifecycle,
> > - maintain accurate accounting of enqueue/dequeue pairs,
> > - update internal state when tasks change properties.
> > [snip]
> 
> Cool, so with this patch I should be able to fix my scx_storm BPF
> scheduler doing local inserts, as long as I track all the task's status
> that are not in a DSQ?
> https://github.com/cloehle/scx/commit/25ea91d8f7fea1f31cf426561b432180fb9cf76a
> mentioned in
> https://github.com/sched-ext/scx/issues/2825

In theory, yes...

> 
> Let me give that a go and report back!

Let me know how it goes.

Thanks,
-Andrea