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[23.128.96.18]) by mx.google.com with ESMTP id bd4si1226121edb.607.2020.05.05.07.18.08; Tue, 05 May 2020 07:18:32 -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=gYytFFqr; 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 S1729916AbgEEOPl (ORCPT + 99 others); Tue, 5 May 2020 10:15:41 -0400 Received: from mout.web.de ([212.227.17.11]:38787 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729860AbgEEOPf (ORCPT ); Tue, 5 May 2020 10:15:35 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1588688106; bh=mf+yc1THoV4pyv4ey9hGDxLNZka1B4z5xCXHHlp3NBo=; h=X-UI-Sender-Class:Subject:To:Cc:References:From:Date:In-Reply-To; b=gYytFFqrgxEhnMiNctQEWfaB2tmp5SoA75+VAEI1gESiBHcL41LSde8uzuEynFf9L OL0Z2xNHKaHd5AegX8Lgg1+mBtux9PDZco5ONf8AVWF1O8+v++DU2nv+/Rxjsrpn+5 BGM9fR/Wbu3vkg57DMj4+c0aQB1cW/d9ABk3XMNE= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([78.48.132.123]) by smtp.web.de (mrweb103 [213.165.67.124]) with ESMTPSA (Nemesis) id 0MPpIE-1jS6jg1OmQ-005080; Tue, 05 May 2020 16:15:06 +0200 Subject: Re: [PATCH v2] fs: jfs: fix a possible data race in metapage_writepage() To: Jia-Ju Bai , jfs-discussion@lists.sourceforge.net Cc: Dave Kleikamp , linux-kernel@vger.kernel.org References: <20200505135313.28793-1-baijiaju1990@gmail.com> From: Markus Elfring Autocrypt: addr=Markus.Elfring@web.de; prefer-encrypt=mutual; keydata= mQINBFg2+xABEADBJW2hoUoFXVFWTeKbqqif8VjszdMkriilx90WB5c0ddWQX14h6w5bT/A8 +v43YoGpDNyhgA0w9CEhuwfZrE91GocMtjLO67TAc2i2nxMc/FJRDI0OemO4VJ9RwID6ltwt mpVJgXGKkNJ1ey+QOXouzlErVvE2fRh+KXXN1Q7fSmTJlAW9XJYHS3BDHb0uRpymRSX3O+E2 lA87C7R8qAigPDZi6Z7UmwIA83ZMKXQ5stA0lhPyYgQcM7fh7V4ZYhnR0I5/qkUoxKpqaYLp YHBczVP+Zx/zHOM0KQphOMbU7X3c1pmMruoe6ti9uZzqZSLsF+NKXFEPBS665tQr66HJvZvY GMDlntZFAZ6xQvCC1r3MGoxEC1tuEa24vPCC9RZ9wk2sY5Csbva0WwYv3WKRZZBv8eIhGMxs rcpeGShRFyZ/0BYO53wZAPV1pEhGLLxd8eLN/nEWjJE0ejakPC1H/mt5F+yQBJAzz9JzbToU 5jKLu0SugNI18MspJut8AiA1M44CIWrNHXvWsQ+nnBKHDHHYZu7MoXlOmB32ndsfPthR3GSv jN7YD4Ad724H8fhRijmC1+RpuSce7w2JLj5cYj4MlccmNb8YUxsE8brY2WkXQYS8Ivse39MX BE66MQN0r5DQ6oqgoJ4gHIVBUv/ZwgcmUNS5gQkNCFA0dWXznQARAQABtCZNYXJrdXMgRWxm cmluZyA8TWFya3VzLkVsZnJpbmdAd2ViLmRlPokCVAQTAQgAPhYhBHDP0hzibeXjwQ/ITuU9 Figxg9azBQJYNvsQAhsjBQkJZgGABQsJCAcCBhUICQoLAgQWAgMBAh4BAheAAAoJEOU9Figx g9azcyMP/iVihZkZ4VyH3/wlV3nRiXvSreqg+pGPI3c8J6DjP9zvz7QHN35zWM++1yNek7Ar OVXwuKBo18ASlYzZPTFJZwQQdkZSV+atwIzG3US50ZZ4p7VyUuDuQQVVqFlaf6qZOkwHSnk+ CeGxlDz1POSHY17VbJG2CzPuqMfgBtqIU1dODFLpFq4oIAwEOG6fxRa59qbsTLXxyw+PzRaR LIjVOit28raM83Efk07JKow8URb4u1n7k9RGAcnsM5/WMLRbDYjWTx0lJ2WO9zYwPgRykhn2 sOyJVXk9xVESGTwEPbTtfHM+4x0n0gC6GzfTMvwvZ9G6xoM0S4/+lgbaaa9t5tT/PrsvJiob kfqDrPbmSwr2G5mHnSM9M7B+w8odjmQFOwAjfcxoVIHxC4Cl/GAAKsX3KNKTspCHR0Yag78w i8duH/eEd4tB8twcqCi3aCgWoIrhjNS0myusmuA89kAWFFW5z26qNCOefovCx8drdMXQfMYv g5lRk821ZCNBosfRUvcMXoY6lTwHLIDrEfkJQtjxfdTlWQdwr0mM5ye7vd83AManSQwutgpI q+wE8CNY2VN9xAlE7OhcmWXlnAw3MJLW863SXdGlnkA3N+U4BoKQSIToGuXARQ14IMNvfeKX NphLPpUUnUNdfxAHu/S3tPTc/E/oePbHo794dnEm57LuuQINBFg2+xABEADZg/T+4o5qj4cw nd0G5pFy7ACxk28mSrLuva9tyzqPgRZ2bdPiwNXJUvBg1es2u81urekeUvGvnERB/TKekp25 4wU3I2lEhIXj5NVdLc6eU5czZQs4YEZbu1U5iqhhZmKhlLrhLlZv2whLOXRlLwi4jAzXIZAu 76mT813jbczl2dwxFxcT8XRzk9+dwzNTdOg75683uinMgskiiul+dzd6sumdOhRZR7YBT+xC wzfykOgBKnzfFscMwKR0iuHNB+VdEnZw80XGZi4N1ku81DHxmo2HG3icg7CwO1ih2jx8ik0r riIyMhJrTXgR1hF6kQnX7p2mXe6K0s8tQFK0ZZmYpZuGYYsV05OvU8yqrRVL/GYvy4Xgplm3 DuMuC7/A9/BfmxZVEPAS1gW6QQ8vSO4zf60zREKoSNYeiv+tURM2KOEj8tCMZN3k3sNASfoG fMvTvOjT0yzMbJsI1jwLwy5uA2JVdSLoWzBD8awZ2X/eCU9YDZeGuWmxzIHvkuMj8FfX8cK/ 2m437UA877eqmcgiEy/3B7XeHUipOL83gjfq4ETzVmxVswkVvZvR6j2blQVr+MhCZPq83Ota xNB7QptPxJuNRZ49gtT6uQkyGI+2daXqkj/Mot5tKxNKtM1Vbr/3b+AEMA7qLz7QjhgGJcie qp4b0gELjY1Oe9dBAXMiDwARAQABiQI8BBgBCAAmFiEEcM/SHOJt5ePBD8hO5T0WKDGD1rMF Alg2+xACGwwFCQlmAYAACgkQ5T0WKDGD1rOYSw/+P6fYSZjTJDAl9XNfXRjRRyJSfaw6N1pA Ahuu0MIa3djFRuFCrAHUaaFZf5V2iW5xhGnrhDwE1Ksf7tlstSne/G0a+Ef7vhUyeTn6U/0m +/BrsCsBUXhqeNuraGUtaleatQijXfuemUwgB+mE3B0SobE601XLo6MYIhPh8MG32MKO5kOY hB5jzyor7WoN3ETVNQoGgMzPVWIRElwpcXr+yGoTLAOpG7nkAUBBj9n9TPpSdt/npfok9ZfL /Q+ranrxb2Cy4tvOPxeVfR58XveX85ICrW9VHPVq9sJf/a24bMm6+qEg1V/G7u/AM3fM8U2m tdrTqOrfxklZ7beppGKzC1/WLrcr072vrdiN0icyOHQlfWmaPv0pUnW3AwtiMYngT96BevfA qlwaymjPTvH+cTXScnbydfOQW8220JQwykUe+sHRZfAF5TS2YCkQvsyf7vIpSqo/ttDk4+xc Z/wsLiWTgKlih2QYULvW61XU+mWsK8+ZlYUrRMpkauN4CJ5yTpvp+Orcz5KixHQmc5tbkLWf x0n1QFc1xxJhbzN+r9djSGGN/5IBDfUqSANC8cWzHpWaHmSuU3JSAMB/N+yQjIad2ztTckZY pwT6oxng29LzZspTYUEzMz3wK2jQHw+U66qBFk8whA7B2uAU1QdGyPgahLYSOa4XAEGb6wbI FEE= Message-ID: Date: Tue, 5 May 2020 16:15:05 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <20200505135313.28793-1-baijiaju1990@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:QP5sqwEUOajYPTCypdV+V2cQv0nAqBqPw6LwvVHLNPF/+loAea0 8FZWYinEvl3JjjgzrmORj9yCT05CZfs+6F/RoRHwkUnxPUh+7Bo1tq2TJsQz9U8Yy1o6kVK E0KfvFVPNXswaiDWXEQLBfIkqnBRBbq3gCs2FV50toH5/O2dJMUTJ9S98YrKT95lEH+wLoL ghLtjHiL0dBbRmqKBD+oA== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:0BZCCghejvA=:m1frBApvFnEwLFSglBajkJ fU2RRFOrB2kZm1BcP1JeACybbvyW3ch5C2Pa2bXswzciSo8yXexAaYsekjcnmcggV8lcfm127 HbinQBEGT/A+vNh1NDL8nCUv2TbtZfCiE/l1qBE4IFKyB4JppFuFJf+3Bphbw8rkqkM3Kpl5b wPmutVvYbkxZJXp13shKAVYU/eRUluIcr5o1hoApM8FkQVgAKph60ABtc2qQ9J/rAKKHJL9Ul kkyrtMlGiX/RqrEaD24T8/7D+JI9hqhdJ2pbfiHEEI4rg/muUsXoGstCoINj/53LbGlTmxQCi gCpkECSvOJ+6MoeYUbLVLHhb+3mQrFcw5bI+tKaLI/eBOsG5XvAh/DRTL3oIOHgvglM9Gxu5g unFlzin50f6kdk2JlSnWJyueEVfgxEBkTVlMfl/wEWf0Limk1wkWkxLtsGwd3/a4cX1hXuYHq 8zU7uuRtwGiJqJ1bXa0ja9PovvLuZUItPcTcQuf3LnD4hiUm8IzXDkxS2lpPubLBiNATGIVSv Z2yVkgfWCLkJYMjHBKif2j+MF7zuwf+uYqLTrrYEaZUVW67C0FmUY1+0EVIJ1waFrpYOrsgWN xi+Sk0l8jlQ2dnt+5dFtoTSAgkav/eIEjU9JWNojbsNV8cY/kYF/9/MBPpSPIwDrwfPk0E1w6 +EmoO6Ndc1jmrbVdlc0wsNHqBNKfJOxtZRIZrM5MVEPyUJwJuMYNMQKtmykgRlPZu/sG5KWNE hIxPbioz5IYJALhFTq7rvugO2SShigLpoNZx8Are/JbU7eBQUw4csxe3dAkIne3+1PLf3kSUo 4WYU9BC2JhTT9yRSRgTH+TBgxXaotmIZOEXDkq8PBllsLL7nvhlenQBpaREw2FbDNUg/9H+mD USw+7oTPk3KmE//V/k0PokpajqaxHzYgddFLv/A0BR7/rFGLw2xaknDGQSzlhN/Np78++THV/ EdAQI3m4Qr03ciRn1kP7O2TpzwYYufYguR9YRPVzu+Vd357xmnppqg0IhRGNgP1+DCJr1U00e ifcV0gtEWw8+eWp2uzneSMk02sLpJoS/JuulBfAoUHzqa68Qi9FnLQQLjeMtrHybsmHKqS5Y0 fcQtoCyRcDh7fHDcH4MtNyf5tvNBXetRZN18GpPM0ctm5hD22PCWQT6WY3foRwjuNy7VcemEm 3EK/gsREJ76UCrLn59PXLeXHmBKpmvI9mNb50oz7jGsqQaJz9tgtCpWBG8jz1r2EzDWX4Ipsz wRWUJoyxOaAoSKQUh Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > This data race is found by our concurrency fuzzer. * How do you think about to replace the word =E2=80=9Cis=E2=80=9D by =E2= =80=9Cwas=E2=80=9D? * Is this analysis tool publicly available? =E2=80=A6 > --- > fs/jfs/jfs_metapage.c | 11 +++++++++-- I suggest to omit the triple dashes before this information. Regards, Markus