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[23.128.96.18]) by mx.google.com with ESMTP id h21si3579189edv.274.2020.06.05.06.04.58; Fri, 05 Jun 2020 06:05:23 -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; dkim=pass header.i=@web.de header.s=dbaedf251592 header.b=bpRq8asb; 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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726982AbgFENCN (ORCPT + 99 others); Fri, 5 Jun 2020 09:02:13 -0400 Received: from mout.web.de ([212.227.15.14]:49079 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726735AbgFENCM (ORCPT ); Fri, 5 Jun 2020 09:02:12 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1591362106; bh=O+67Zqc7BNPiu0Riju17L/rB8Wen0+rCWIN/C3IARsI=; h=X-UI-Sender-Class:Subject:To:Cc:References:From:Date:In-Reply-To; b=bpRq8asb7ONNLj9JMLNnm1sqWwvuzAjoCclzRrLLSFj7GK3yf0zTmuH4IWYUcbt6s /TxCET2YfXFrR5ZqyXB05Ax5eQ0H7bnI4uA8IKA4BozbPX1t/NIfbbFyOrcHxb0MvK TGyKS3+sBUV+6PWSO4uy3GyY4C01A0tqCDmjAzR8= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([93.131.102.114]) by smtp.web.de (mrweb001 [213.165.67.108]) with ESMTPSA (Nemesis) id 0MXpqx-1jUnuv0A1H-00WqRL; Fri, 05 Jun 2020 15:01:46 +0200 Subject: Re: block: Fix use-after-free in blkdev_get() To: Matthew Wilcox , linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org Cc: Dan Carpenter , Jason Yan , hulkci@huawei.com, kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org, Al Viro , Christoph Hellwig , Jan Kara , Jens Axboe , Ming Lei References: <88676ff2-cb7e-70ec-4421-ecf8318990b1@web.de> <5fa658bf-3028-9b5c-30cc-dbdef6bf8f7a@huawei.com> <20200605094353.GS30374@kadam> <2ee6f2f7-eaec-e748-bead-0ad59f4c378b@web.de> <20200605111049.GA19604@bombadil.infradead.org> <20200605115158.GD19604@bombadil.infradead.org> From: Markus Elfring Autocrypt: addr=Markus.Elfring@web.de; 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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.1 MIME-Version: 1.0 In-Reply-To: <20200605115158.GD19604@bombadil.infradead.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:0KBUHlg/cfGbADFqdBGcQEuSDYrIMb+iJJX4tEwEXP8qw+lYyPk uEatsxaGATdDocmBSffHLl/qH91Vdd2Q0uIoU4oU7hk/YdH3VjfLUqlmDlJQ9N+DnUBbxem 0DD5YksNgIvDK2IichGwY4+pSMIB98dMQlOqdHahsgQiN010ksZBXRDLQCxDEPOgXyjJpS0 c5Ta5V1D9uJ6GZ9p0gsuQ== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:ZH2Xx6ovcdk=:B1r/fcyTw+fFlcwoKu4tG/ YgxONeycCyHlA8Sv7VWAPg64WwQR02SacmfwWuVfIIwHcFiuWuglHdE6YtWm1JKkZh4OgwNrn c39hg3zVKdqGHFECCV27W5HYEQ7K5W/qhZFOzZk4xTuxXQbbylZoxZzrIRzwFdvagoV0kCddN hL6RusODbSJ91PZW41TriqOCkNptY1B4Yax86e76jsAVnT4fLrbQZGZH01j+VA1CQt1Jvgjkq XuWPZtmki/z4Zn735KVuW18t7O8CeRccq4YfDz7RsuylT/xL3TnWi0U34hPzqX41+oadKYlG9 rXcfWe1fxrsxZuPvGIiOa3zqGbyFL0NjKQPBpKECvljfy5PA4CZ20SnO6nYQJr3BFSVryZ/XS DGOGsij/y/4+rAWkK++GRqq5kRT4FEC9JF4x4sCSOZfdFb3sDK0NjRhPAum7bO+NR8STtC9us R9xfWc7oh2OI4V9YHNmxpoUgSoLwbkJk/7H2bRqq1d6vRu/PoqWpvXGhCybltonppyhSigMZD ohY/hYIIGq5z6tuIyqXZ7cdW08VSMC84f79ymFs0inq+mqfvXLID/YA6kmpNUMNiGXYJaYyrG jqHajXQyZHbMLBp2WtrvaFGAAPkySHuKIhXgKDex0COzMd8y5dQuVL2VFTW9UDoSnNUBe1GdY SPzsBoDqLKQKrAQt8prpLD9dYMhPqPQiOoLNuwQlziZzSTuAyKxEBg5CLCQLbSt8q7ifVwbZ9 SgR6M6bT2cuQzpsjlf0+Jx+kBxN3g5lKELT1//vSw99k2VULmUaLB8J1qqYpZxenYSa1YXfZs pUTuHAEjI1kDZU5xyapGIX5q2B2vtmG+ia2twmPShsq8Y+yoYYV2xjadtKEaSkFMOR3VEAHBc JkmWcRObF5UTzHsr9KD4jxVcozyORMiFt3wbKSBGTtmZSb2dQsdV10XAkRkO7SDnWjev0+8Vt trnhC1qSDZdweCwd4gCktKzzJbNXF1MWU7wcmBNGseWIbcq1NjlTsKm19d8nNnKgiS4OEN7iJ HHuPwl9r0tGnguVdn4aRzq9quW76sn4HzW4Ax0fCnxj8a5MkmzkO9ddOjw6S3gKLFg8My/jxY g97kiDZ4Xc6H3YUq1ibCDyghEyNReedRx+3CbBxnGC/OkVPOI9pwFpEIvJpSm6XtDuut+MlXZ jyY4/keFbXU3SwAVwXRhFrvk3VoAmTC8SyWQHhZGACRkMxJTw3G/HSOMtebNs7VDGoggFWObW bQ/HXaGYkcdqeYZzx Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >> The details can vary also for my suggestions. >> Would you point any more disagreements out on concrete items? > > That's exactly the problem with many of your comments. > They're vague to the point of unintelligibility. Was is so vague about possibilities which I point out for patch reviews (for example)? * Spelling corrections * Additional wording alternatives >>> But refcount -> reference count is not particularly interesting. >> >> Can a wording clarification become helpful also for this issue? > > This is a great example. I have no idea what this sentence means. Some developers usually prefer to use abbreviations at specific places while I dare to propose the usage of another well-known term for commit messages. Regards, Markus