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 0DB2E3FCB06 for ; Tue, 24 Mar 2026 15:23:45 +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=1774365826; cv=none; b=jWbEyGGomaDeBJH2NJjNVabKm7EWIafJ0VfIvuRsL3DEY708bOiqOepAqbX6Ri1gLYFUPWIw7fOXyHPAS7ut+Ct9tfe3sD/WNOkhZgf9kngCjF6uy/6p8IAyfsZB0Z6jG4UvR7fOhwg9QaaWNgaLrxF4bz6wYGCDTDrLbzCpLq0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774365826; c=relaxed/simple; bh=zGFRPVJDxf4Igm6xRxQVBoqj3S1r0i8JYFoBeCr/Ycg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=I44juE1dnjNARBaaM4oL8pjDjliEp6b6sYbXviFeRu7JSi06Py5MtTUAIH+ECosVA0zlsYxMi8LaiMaIeaVann7MDlTuEM5cGm9K2xnNd7AstcXnaKFI58lUOHfK3HzG7jlQAaS7RWcWYS9FUq2FE8eoJDxDUoRyK2hiaq6+UvA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=o9VgrLrB; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="o9VgrLrB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E60E0C2BC87; Tue, 24 Mar 2026 15:23:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774365825; bh=zGFRPVJDxf4Igm6xRxQVBoqj3S1r0i8JYFoBeCr/Ycg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=o9VgrLrB+Jt9ShucyQLSiqKf40JGM+ECA7Sxzme2+NhIes3tKVtf5H4x2FXUEUR+x sX0Xg3VDAlp5+2ChN4obxVC1l3up/M9DVE3VcNaFatkb8PlFqs07EQN69JH2UMi6KL PXvZAWgBbiycSI/9fNQmuDKZQ/4dRVAnLTK6PHbQZUTZS4NarPfjVDaa1pbDDozs2j lk73xh7UnFErxsywSAvwo/Gnm82po6qScWyPu9Jwj64JOr3/DTMo2KnI1C1OJevI9B qmY0gjoOuocbw2SYfGYnHTMsKWwU+HWh+MBoQ0zql9AI5+mVm2EySgWF/00PUp4mHc fQub5wCjnPEig== Date: Tue, 24 Mar 2026 09:23:43 -0600 From: Keith Busch To: Marco Crivellari Cc: linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, Tejun Heo , Lai Jiangshan , Frederic Weisbecker , Sebastian Andrzej Siewior , Michal Hocko , Christoph Hellwig , Sagi Grimberg , Chaitanya Kulkarni , Justin Tee , Naresh Gottumukkala , Paul Ely Subject: Re: [PATCH v2 0/3] replace old wq(s), added WQ_PERCPU to alloc_workqueue Message-ID: References: <20260223102336.108512-1-marco.crivellari@suse.com> Precedence: bulk X-Mailing-List: linux-kernel@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: <20260223102336.108512-1-marco.crivellari@suse.com> On Mon, Feb 23, 2026 at 11:23:26AM +0100, Marco Crivellari wrote: > 1) [P 1] Replace uses of system_wq > > system_wq is a per-CPU workqueue, but his name is not clear. > Because of that, system_wq has been replaced with system_percpu_wq. > > 2) [P 2-3] add WQ_PERCPU to all relevant alloc_workqueue() users > > This change adds a new WQ_PERCPU flag to explicitly request > alloc_workqueue() to be per-cpu when WQ_UNBOUND has not been specified. Thanks applied to nvme-7.1.