From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 C6AB238B639; Thu, 8 Jan 2026 13:51:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767880302; cv=none; b=ZjOXVSHk/dQq6V+nYu5cowCcx0Ea9ASSNLqi5SWXOgDi6IEey8yys4MmbnRq4CB5bg4d9zIIKPZXnuvgYmuZnth5tkc+zCEMn9NlPCrnZ9AbeDkl6MvEM38EfvVDlGGLkDgJ/88sg7045Z2oUo6l/5/YDXwmMX3qgTh5bfcIczo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767880302; c=relaxed/simple; bh=M7NmYC/Iylm9myghHwqILim55SAUt9QrM+UZYk0eJlw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=EYxRGpTrzcXd8wX8J4GTmIanepko5WLdfBorN58nRe0ld2qGL0y8/Kxyi6xynsavqwu4WVdIesQu8N9xkbg+rKyH39nmG5hsClvzRmQ9SLPOcNykonbTJDQcCGJZFRQIZ/PxVH3Wu2fUx/DbWO6LeOeGtgF5oIPP7LWFQX9Advc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=KRs8LhlW; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="KRs8LhlW" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=M7NmYC/Iylm9myghHwqILim55SAUt9QrM+UZYk0eJlw=; b=KRs8LhlWu7gethNiEGksxLzaoc ovNSQGqnYCmjMX948EkOGVhvFrfEb6YNnGJTy6op0FVS6o5FY+d0c4iGbzX5/6zANyV+y7iUDSIUp IEQ8ToKd5C/V08Cv0Wh4gj8L3x3lWBX9cCeo9OJyiv5O4Q4yPt1sOVER5hfgxiEVDyBM0bSZVrhSl cPDx0ZW29zqOTtFXFQcloG8TY4XPhFdHGyiKtxtVrRyCWl+5ljxnZc8FZbB4Y7cPs3h1LdXweQXsO K0iOKGc1hT+eYzoJQBHJXV0l6b2qQuzk9LQK3cG5lV0N8nlK1SxpH3AtewqA8i5FVKHbytFBLfG2G 3ziJmqUQ==; Received: from hch by bombadil.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1vdqQL-0000000HEYb-1c9C; Thu, 08 Jan 2026 13:51:37 +0000 Date: Thu, 8 Jan 2026 05:51:37 -0800 From: Christoph Hellwig To: Zheng Qixing Cc: tj@kernel.org, josef@toxicpanda.com, axboe@kernel.dk, yukuai@fnnas.com, cgroups@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, yi.zhang@huawei.com, yangerkun@huawei.com, houtao1@huawei.com, zhengqixing@huawei.com Subject: Re: [PATCH 2/3] blk-cgroup: fix uaf in blkcg_activate_policy() racing with blkg_free_workfn() Message-ID: References: <20260108014416.3656493-1-zhengqixing@huaweicloud.com> <20260108014416.3656493-3-zhengqixing@huaweicloud.com> Precedence: bulk X-Mailing-List: cgroups@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: <20260108014416.3656493-3-zhengqixing@huaweicloud.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Looks good: Reviewed-by: Christoph Hellwig