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 6D67A145B3F; Sat, 21 Jun 2025 02:45:10 +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=1750473910; cv=none; b=tOpaoAY302tnbPs5wh5JpuJapSjJn+4KKBQprRTG0Y7GaIhGVRcFLmuXXfPQtLUr+sc3jH20My61nJAjo7HjY+u86+xKecKa8Uq1H1VFyK4KxpL0pdVh5V61CZWQvgXXBFmWl2l1AUzKqhLNl9dbzDWpicxZkNHQcyzMpdj8oa0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750473910; c=relaxed/simple; bh=ArCxk7ADbTRh0TJY4cvHsZszyaAEmGPJmkniRoX3nao=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=H/HAoMkS1DSQzA1YVIUsXgOrQn4AdEHPtPzsHiVgKDgv4GwZ+oHhwhg8uLhO3GjnxArmTgpwaCp42yiSpJy6EFQZs8LMsEUQBXDmBk2uhCNLXbrc/+EumLGDQTK6EIZPNnaENzY9Fucf3ssHb2XwQHU6lV2sgmk+rFWq78pXnII= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=JdTk4+F0; 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="JdTk4+F0" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BA37DC4CEE3; Sat, 21 Jun 2025 02:45:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1750473909; bh=ArCxk7ADbTRh0TJY4cvHsZszyaAEmGPJmkniRoX3nao=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=JdTk4+F0CeQkPV80djCfvpL/3NSZlu7zb5rxgPQe4YiR/h8AUGVFs3RqhqKQIe+8h OxZLNIqQGlIAh1bzFhJMLwJ1J4D5PR/LZewD4t4cHL0TuP5Q8C3ItsstnF+930p15z DRtmfkd++osPxBh+MLoGqO2cjCkicmIIchrhrLInW+JMY0jMRj5C7a6hAkYbUUDkE+ SujuxiQg4LyiJfKMv4X5lUtzguzeY6y6yBLWhxPpTd39sWu7pEcyG5h9r3k2TUjtYa pepYTJWXc1sWJ4LNiitQgH5qs9EPEyvbguYVqaeEJVal5lJvNszgedRK5XnpnIlH/r RWYQj7LRBAu1A== Date: Fri, 20 Jun 2025 16:45:08 -1000 From: Tejun Heo To: Song Liu Cc: bpf@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, kernel-team@meta.com, andrii@kernel.org, eddyz87@gmail.com, ast@kernel.org, daniel@iogearbox.net, martin.lau@linux.dev, viro@zeniv.linux.org.uk, brauner@kernel.org, jack@suse.cz, kpsingh@kernel.org, mattbobrowski@google.com, amir73il@gmail.com, gregkh@linuxfoundation.org, daan.j.demeyer@gmail.com Subject: Re: [PATCH v2 bpf-next 3/5] bpf: Mark cgroup_subsys_state->cgroup RCU safe Message-ID: References: <20250619220114.3956120-1-song@kernel.org> <20250619220114.3956120-4-song@kernel.org> Precedence: bulk X-Mailing-List: linux-fsdevel@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: <20250619220114.3956120-4-song@kernel.org> On Thu, Jun 19, 2025 at 03:01:12PM -0700, Song Liu wrote: > Mark struct cgroup_subsys_state->cgroup as safe under RCU read lock. This > will enable accessing css->cgroup from a bpf css iterator. > > Signed-off-by: Song Liu Acked-by: Tejun Heo Thanks. -- tejun