Received: by 2002:a05:6a10:f3d0:0:0:0:0 with SMTP id a16csp217086pxv; Wed, 14 Jul 2021 02:19:00 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxazl9CZJda2ggAW8DuFwD+NZq7a5fm3PUd38zeTIy3s9H8SI3vcPjFL9iKZt5+TMAcr1lz X-Received: by 2002:a05:6402:291a:: with SMTP id ee26mr12233487edb.220.1626254339899; Wed, 14 Jul 2021 02:18:59 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1626254339; cv=none; d=google.com; s=arc-20160816; b=DVcjErjbLqT+vusiuZYHZMjJS0vPTqOXGM0vgXzejSGLEHNeb32RbLvreBdXrHtgR5 4+qCIaZQ08hsbm7I9VLFkqrTTONo1ECzEGLYzt0WHYNk663AJ+l3SHd/17AIMTzV3yFw Ou+OwL1Xl1r9Tx3lWjgwJhxu2sryWveS5Dt/F9hesQNoETerXP6kJYCqXf9uAOnMgan/ NaJ88SdO5NFn3yJJiXSt5ehxB4cn1dXwmR0PSXYoJUAMJf/6W/Ev75S3kSmIxZ8xsurW jfKE6h/NG62tzNIyamG53TsN/VySt9sNdESVdUJcCNHs2zM4GN1wvCCRXPyzjUdTwPqz cMzA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:organization:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date; bh=cYBNyPiNiBK7ZgGUF7eNJ+P2rlXq6Eej+73tLhbWbhQ=; b=SlQ0rkeEcwqJt06VCmZed5bAYpeUYPONLj/EC4cxWdAViCeP1kHuohk8pZv8A2Ftmr J+R1lIFNXrG6pgXYXWqWk4xa3mHgJMj3pC80y2JjP5r34RAJXxqy6XEEJL5pE3mKQ/pG 4obdnTi5kpf/LETNBzxhBGGFs4m5Dm/mAjeSlO1bI6r6Fmza4A8GeNjMIGZcJWvfMMes ZC0w0g5EFo2jJpM26yd0/NCGaWFZj8bHJ01CC1QhMKDHqYx9qdMYO5IwxZYFj4t/Ppm/ EOOUeA/DZA/q9VcLTCiZl0RtJs2RPkrVx2N7+Ka5DwHuh6/rSD6RBIZbe6gl+UVk0DZi 8G1g== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id s18si2196752eji.655.2021.07.14.02.18.36; Wed, 14 Jul 2021 02:18:59 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238351AbhGNJUJ (ORCPT + 99 others); Wed, 14 Jul 2021 05:20:09 -0400 Received: from mga11.intel.com ([192.55.52.93]:62308 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238179AbhGNJUI (ORCPT ); Wed, 14 Jul 2021 05:20:08 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10044"; a="207296715" X-IronPort-AV: E=Sophos;i="5.84,238,1620716400"; d="scan'208";a="207296715" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Jul 2021 02:17:17 -0700 X-IronPort-AV: E=Sophos;i="5.84,238,1620716400"; d="scan'208";a="494122677" Received: from smile.fi.intel.com (HELO smile) ([10.237.68.40]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Jul 2021 02:17:13 -0700 Received: from andy by smile with local (Exim 4.94.2) (envelope-from ) id 1m3b0s-00DFlH-HQ; Wed, 14 Jul 2021 12:17:06 +0300 Date: Wed, 14 Jul 2021 12:17:06 +0300 From: Andy Shevchenko To: Justin He Cc: Petr Mladek , Steven Rostedt , Sergey Senozhatsky , Rasmus Villemoes , Jonathan Corbet , Alexander Viro , Linus Torvalds , "Peter Zijlstra (Intel)" , Eric Biggers , "Ahmed S. Darwish" , "linux-doc@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , Matthew Wilcox , Christoph Hellwig , nd Subject: Re: [PATCH v2 1/4] fs: introduce helper d_path_unsafe() Message-ID: References: <20210623055011.22916-1-justin.he@arm.com> <20210623055011.22916-2-justin.he@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jul 14, 2021 at 08:33:10AM +0000, Justin He wrote: > > From: Justin He > > Sent: Thursday, June 24, 2021 1:49 PM > > > From: Andy Shevchenko > > > Sent: Wednesday, June 23, 2021 5:11 PM > > > On Wed, Jun 23, 2021 at 01:50:08PM +0800, Jia He wrote: ... > > > > + const char *dname = smp_load_acquire(&name->name); /* ^^^ */ > > > > > > I have commented on the comment here. What does it mean for mere reader? > > > > > > > Do you suggest making the comment "/* ^^^ */" more clear? Yes. > > It is detailed already in prepend_name_with_len()'s comments: > > > * Load acquire is needed to make sure that we see that terminating NUL, > > > * which is similar to prepend_name(). -- With Best Regards, Andy Shevchenko