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[23.128.96.18]) by mx.google.com with ESMTP id r8si10748607edi.324.2020.04.15.15.16.10; Wed, 15 Apr 2020 15:16:33 -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=So5gXrdA; 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 S2408015AbgDOHNJ (ORCPT + 99 others); Wed, 15 Apr 2020 03:13:09 -0400 Received: from mout.web.de ([217.72.192.78]:51619 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404013AbgDOHNH (ORCPT ); Wed, 15 Apr 2020 03:13:07 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1586934741; bh=EXAvT0aboByTL0/9t4BjG/IsA2KiGVphpaH4RvWApW4=; h=X-UI-Sender-Class:Subject:To:Cc:References:From:Date:In-Reply-To; b=So5gXrdAlzClyqiPHjA1axpMsZfSIMgAQGCjGrl1IxqOU4MDzSNZ7hK8hm8PNyXoC qrmGMGujEWMyzvbJdD3/0qLDRtvloh63u8nD6hLYiC9GJUKAjWte9M4i6lF9W5fioN TNG2k+pHUdrYM5OMy3RVEosPHAH/RpbSqmkNKI8Q= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.3] ([78.48.133.192]) by smtp.web.de (mrweb102 [213.165.67.124]) with ESMTPSA (Nemesis) id 0LZvgf-1izQoy2TcL-00li0R; Wed, 15 Apr 2020 09:12:21 +0200 Subject: Re: [v2] tracing: Fix the race between registering 'snapshot' event trigger and triggering 'snapshot' operation To: Steven Rostedt , Xiao Yang , linux-kselftest@vger.kernel.org, linux-trace-devel@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Ingo Molnar , Xiao Yang References: <5E966604.1020400@cn.fujitsu.com> <20200414214643.2e14ac76@oasis.local.home> 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: <3797d4b4-180e-fb25-09ed-888385c04894@web.de> Date: Wed, 15 Apr 2020 09:12:20 +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: <20200414214643.2e14ac76@oasis.local.home> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:hcxfmI3274wXkvaT6yq+7njR+vADLySKx89ZAvKUd5j/eoFHF/E dst47aSvxB5eCVS/aBuXHy6+v/p5MGFb7offiTWK11Oyba8Lp2ZRnyqet8cNZV4m4AanTe5 My7dRCoQzHLK8sP5RH67IRg/yZYU90PaIfQzsmzhWfrEpklbvIHKGIC2U7UAmcjQoBH9niW ach2xOx5CErUN0h7oabmw== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:RLDtb7Oo75U=:u/3ry2wzTv2PP2x+FI8Td9 SsyZwNT/LVsu0g+N4cBXMhXzUIxMMLzGDQrh0MrcfO7dQkLTxDU4eiwGY7Vop4fw4T27ev7Wt 0zeSXbJUQGrDtJfYi4Cg1A4rd0m0LFX4S+URGawibcmh9v5P2S5Km1cYghDm//D+nCSZohqbV Htk9iziOh679wq7b6FO87jHf+cHofORphJqOYFIicO5/fZtnxNOsFeLXVDUytMbzM6zwvMfDQ XnNEOx3PrURIuaVc0uETlXhu4cJlT7iPtqma5ZHKQden2wJyfPfuqwda0hgUMfkaM9eEt5IG6 hkcH62J+SSbPCjuNMLYBsfEwri3T53WaWUmoAft2YDw2myxQCfxJlcjw9gkvhwAbqonzHvnWs OC7IYzRQdnNRnlhJcsyD/L4GZJRaT+x1yP5ma83dRYKBn+5fJ64ZEz68n0qBGCsmMx9LvttZt CHJ0xFZEdkEaWL5WNRbfhdRv14pvanxADl3bU4EZrNrMIs+btX++VHuEjEo/TI8NSMauFilqb z8vRsoYUsStpJHKN7r87q0a6pcVaNlxPflY78G2yvGK7o8UWQpnoh9v/9PdONL8Wr60yWDjKT TnXhOoDltVaIRNeTfwNJ4XJ4ZDoZc6elYOPOdR0iiVcC3XC1uv13QbTABH4dAad+2brffPp5N Q1xhakqxWsaHz/Ww/cLq+NA2M7CSUsxZSYcDBZIpKLlWdg0tD2q4IMk7F2EvX8+edWssWxlU4 rreenxlaRGE+xmtceJ2w68WDVVhHs1xRYG7R5vJJwlS1Ma0F2ZF9/4OKCvf+IfDCCpQF9/LTy f5gVYdOMms19iY0sWfQWq6oE4v2PAgLdVOhUYDZIE8Wo1LhrPCyhrrm7BHaHRtNvHQcFVDTt3 aLtgByYRzjGoZaK2vWDXPJpgRjTlEvHnhaHS/txFxwxR15J5F0tQsjnbhdTOwei2HtL/K8m0K s+m6eKHXRlrXoFuLzS9GYx9gPI2Xwtp4mvAmJca0MG6j04V1C/WhhLiaz9AKlak482wLa9L3F DkCb02m81xoijftzCaDgm7su11pp0aiozE9uAHC61dl2ryCADt6mZB+PO0liq1gq6TpvX1Sm5 PMlgsqT/gApKEXV3RioUR8ASZJS1azxxpdjOyX69DZ5BfJ1t3ISXA8MdMtxIOxB96svxyOuxQ q97b7uPViEKWFwrmlvh0S5PlBHFxFppEb+Sg08o3Ele83cz3LJuHa36rYcc80WxlpwHE3vH6b iALMgqSNHnhxXMJoq Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >>> * Adjustment: >>> =E2=80=A6 operation (i. e. =E2=80=A6 >> Hi Markus, >> >> Which part of description do you want to change or could you provide an >> example for reference? I proposed to insert two space characters in a wording. > That part is fine for me. Such a view can be fine if you would like to adjust the provided contents another bit for the final commit message. >> Do you mean to add the following "Fixes" tag? >> Fixes: 93e31ffbf417 "tracing: Add 'snapshot' event trigger command" > > Yeah, that fixes tag is appropriate. I suggest to reconsider the influence of parentheses at such places. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Do= cumentation/process/submitting-patches.rst?id=3D8632e9b5645bbc2331d21d892b= 0d6961c1a08429#n183 Regards, Markus