From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 156613B2FFF; Thu, 19 Mar 2026 09:29:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773912549; cv=none; b=oGqdrFLOq6EWz9kDyU0vXgLOTuDq54vfB2DD1gKdHYt7Pf6Ftgvf5gjw7m5FWov6XsCJyzUE5qdwwumZs7drJP+yxhnOJYTXFwNl1W37CQWg30k8Vx60o7TaCY9UXjbZ/XhssWi6PUlHTT3Zg5Mu92QK/JBpuG76jUfUrp561iQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773912549; c=relaxed/simple; bh=OZjDCPMvyj6fBM0TxtQk7RqfV7z4fzmGkmhMdYSyKPc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=X8452HzkDGgpvx+QdbS904xm8pO8HCUAlmCWPz+tpAIbXwZBTNTBjA2REKYg4bzEjF8B8ngPnAp+5e9wnU6diBY4fJ/7La04ks2zUgciKrRJpLPiIoFsBwCB2uvqg6Q/cNofvEnt2tq4mf8jAALjxYyMaiGoOW6YJ7R+dY87IFI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Yle47foc; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="Yle47foc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F2B3EC19424; Thu, 19 Mar 2026 09:29:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1773912548; bh=OZjDCPMvyj6fBM0TxtQk7RqfV7z4fzmGkmhMdYSyKPc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Yle47focBnxRT+SdDcr6Gf4SB+uaGyxoSyMeJx28hxIuIeTTAZwXUOBql8zI0FECs KvGqBEEgjANLjiKV6nsNAizv1/ECeVBvPapDHa/nMNt8HCURARRZV1AAClOMfDthZL xoWPJJR1/9gflHg8zrSOW8ydzEBSzSj9Sa4p4rwQ= Date: Thu, 19 Mar 2026 10:29:03 +0100 From: Greg Kroah-Hartman To: Jiri Slaby Cc: stable@vger.kernel.org, patches@lists.linux.dev, Tejun Heo Subject: Re: [PATCH 6.19 240/378] sched_ext: Fix starvation of scx_enable() under fair-class saturation Message-ID: <2026031953-undrafted-postal-4e78@gregkh> References: <20260317163006.959177102@linuxfoundation.org> <20260317163015.844144806@linuxfoundation.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Thu, Mar 19, 2026 at 08:11:39AM +0100, Jiri Slaby wrote: > On 17. 03. 26, 17:33, Greg Kroah-Hartman wrote: > > 6.19-stable review patch. If anyone has any objections, please let me know. > > > > ------------------ > > > > From: Tejun Heo > > > > commit b06ccbabe2506fd70b9167a644978b049150224a upstream. > > This one likely needs also: > 2fcfe5951eb2 sched_ext: Use WRITE_ONCE() for the write side of scx_enable > helper pointer Ugh, I missed that, thanks for catching it! greg k-h