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 0BE1527713 for ; Thu, 4 Sep 2025 16:18:53 +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=1757002735; cv=none; b=ewXr5KmudPiFcvzNOghKxWtFD8dkkJuqyiTF1P6mxQZfv1rodE19B22XwWfaLnsjlD1u79Hk7hY4CEKy4jKPdp/NjY2zcMTVv8NuU6TerGddpsA1Gak6hwRVsDno9xhXjBrVbWz7s6beB1yLBt/eAhgyIwdB/Lm46K2qEqqxMDY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757002735; c=relaxed/simple; bh=hG7uQKDoWlUHAsIbTCZ4LKMxHqUhqz9DfjcL59BAytI=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=vE0WwmmC+x8F4U1YPWBGTBbuwi3qUAQx4JSfMxWeZ6m52vJTtrzojKR6wRBhp/v40K6QfPd9chT1UQ1V7XrPM9tfYI4Vljhy9FZQKGQDTaT9nyUvn6X5qOL1asuljcn1PTVbk5EN7P6P3isPJysM/g6lliJPXu6uns1UdiGaOSk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gXVfUWC2; 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="gXVfUWC2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 77F34C4CEF1; Thu, 4 Sep 2025 16:18:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1757002733; bh=hG7uQKDoWlUHAsIbTCZ4LKMxHqUhqz9DfjcL59BAytI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=gXVfUWC2FKpLx1+Te3QiKry3+braYHv9sZLp5LwapGdej8iN/rEWt/HsBgXSOdlYi ZDOpUJJkGJj9DxBQoH9X3FLOcZlQ9mybcODYW1wF1PPaU3Xo8zOvuhKdL3fs9WX3MH RXwSrhWHC+sVJoih3WUBFVqUvafNXiM5Q8ZqnXIMAPn+WgGI+W9UI9Wrdir5LAOPfo c8+wjxqfreBsGIZ/y+EnFdZ+/NCXymvyz1kg+0x2z8Dd7tsfSFoGqR+s1u1GvPazTq qt1+BaXU+Oe4bhK3Iteh6guyscPcCoE2aunm3oBZpqeBU4CvL+Qgoswb9tQ4KIuIZN YVneryTLw0jyg== Date: Thu, 4 Sep 2025 06:18:52 -1000 From: Tejun Heo To: Zqiang Cc: jiangshanlai@gmail.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH] workqueue: Remove rcu_read_lock/unlock() in wq_watchdog_timer_fn() Message-ID: References: <20250904113133.24487-1-qiang.zhang@linux.dev> <20250904113133.24487-2-qiang.zhang@linux.dev> 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: <20250904113133.24487-2-qiang.zhang@linux.dev> On Thu, Sep 04, 2025 at 07:31:33PM +0800, Zqiang wrote: > The wq_watchdog_timer_fn() is executed in the softirq context, this > is already in the RCU read critical section, this commit therefore > remove rcu_read_lock/unlock() in wq_watchdog_timer_fn(). > > Signed-off-by: Zqiang Applied to wq/for-6.18. Thanks. -- tejun