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[23.128.96.18]) by mx.google.com with ESMTP id a4si7677959edn.370.2020.05.12.05.34.27; Tue, 12 May 2020 05:34:50 -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=oiuSB6tt; 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 S1729745AbgELMcn (ORCPT + 99 others); Tue, 12 May 2020 08:32:43 -0400 Received: from mout.web.de ([212.227.17.12]:60069 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729408AbgELMcm (ORCPT ); Tue, 12 May 2020 08:32:42 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1589286744; bh=oQ654Y8vgazkW9Fx1rTOOfvrDoyHa0+Mtvm57jCjOUo=; h=X-UI-Sender-Class:Subject:To:Cc:References:From:Date:In-Reply-To; b=oiuSB6tt/knk88jxyT/tcwoaScFSJzQsLYieamrlQyBf9sjEQOB3K7hzfXecWm/uM 9epiFm5lc9gF9kgFsnQkRAB2UJBizxSrcrMu6rZglKiSBn2SKXNGzolEyrbcVuTqvt kFnOqX8JNIigT53+NwMssbV7IGzg8fNRDG8clyNs= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([2.244.36.232]) by smtp.web.de (mrweb103 [213.165.67.124]) with ESMTPSA (Nemesis) id 0MfqEy-1jmpX941pM-00NDyt; Tue, 12 May 2020 14:32:24 +0200 Subject: Re: [v2] memory/samsung: reduce unnecessary mutex lock area To: Lukasz Luba , Bernard Zhao , linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org Cc: linux-kernel@vger.kernel.org, opensource.kernel@vivo.com, Krzysztof Kozlowski , Kukjin Kim References: 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: <5a12fa12-f4e0-c941-b22b-33436723b44e@web.de> Date: Tue, 12 May 2020 14:32:21 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-GB X-Provags-ID: V03:K1:7vj6CzdFvzTXkxGUCDdIycEJRwV/9+NWbNRMILlfg6XGAsQgjNL gVK/xIN74DtSp254wG8c3r6du0J8UfHSDtLaUBy787gcBk14SBtlnJ8DN5TotpRfmUPY5pT NsKKbyS+3X5v9BkdCSwnY7yuoRaMsc2sm2sfCxRMTPZmWUcjgIaFwLzrTZWCE1CNfJqSPn4 1plEOwdeBS+AMeFNpL3pw== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:yl+gJRe44FA=:Deits6p83AxdOUjY/B59HL GfUDSm9bQpZYkKGTxplVIo6tR/pqApA3sIZ55/xWB8a0l3dt733bcUmxQ7vagZB+wzWWAorbl bkAo82XnkCdwieFUia0LRyeccWtm1ZomTgYeKuqh74BpqG47jSicMkUh4ntPqFZ6jiOM2KW0z c70CbWDsvK9DG6H+PO46npNGeAO16zCHlMx8lebBxk6HiLrxiQcBmadHnvqFQwDbd6oNR4tbE J/7mWfrwAjSCwQoExbIo8ScBrumbATigLtQpegE9oX/h7beHglEi8RFpQOM89UYod6bn5nwyT 2lNIWvir9H+Z+5vyBD1dw4EAgE6YFlDFn16Z3vCP5rTXWkuOW81VuiPVjAicdFv/wxT22PLz4 tI9FB8Y7Zt+CWDGYUdSDe+bIWryE7nV01VjJlUijzgTdAZz9j1ypk+2KTYdMfnLWGA4XK+HUA cbg4i6RaarZhXx2KaTT06f1wFh9rPTeLxyEnNK34/xmwMiRdWQif3N/JD2igytnIAHQZC+YOw a7oZ8hJNjXPyByC2TA8jzNPpx+RcUpWxriNI94TupQFh2y4uzVuakIXZatRJ/52pR/JJ2+OHw JuvOMCnHYip1/Ze9EILujZmpyldVBlnC7Z0/IZ6KHZLXbrKtmZS7CHOjH1VQtpnlDrQYQ9a3G V5xsvE3wmHEf/cAwJDhx1CDDBUXUc99pjbZVDMV52Y30Se/dmqaWDCRrMcRkfvPivSnNDR7vn vBrAizDARhADgAopyE8TWykElgEmaNPggQ5YZzC8Tl+gzbZUK5FkvbDTJjxxJ/QXB2wuKv01E HZvXAhTK/coNF1CTp+PmZUP2ReYvQv45sKFK8S+gPsGQR+p/ZKBDrC6N5/rTtXrTATqnQJSvl YXas4qJL0OcaoGrolc68y1e8Lj3BK1tGCIknHBNbnPllH1u1FnxUjc5UTGUbOPvKTf7YrT9ya LxiiBVXgf+ml7cpsOwMsKspMplvbQE5nTuar58q8eI4AiBdmbZ9QOKpuqGSKCRWT4YZ6bAtE3 AdFoNYLz83l8+2NcpThXT4VGEmHt1N3Eaxtotr0AO4JfyrGzvHoP3c7+bfcNDDkyJ/GoMrDPH 3/R8jvzLRy7SgDBFSpGN/JNaNnOCzPmr35heoBkX6zHUUM78acCPBYAw/ofGlyhoaue2FDA7y /U/pdDMHR6NYYzV8dvLRCxRYvoDi8bbl56aWBQ3XmdydpL0dbXXBef8Ge+YR1q43aMZg8LTmB gsfMDlfgQ4PNgOfDk Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Something like: 'memory/samsung: reduce protected code area in IRQ > handler' for the subject header would be better. > Then in the message explain (without 'maybe') that it will speed-up a > bit this IRQ processing and there is no need to protect return value > or printing. Do you tend to prefer smaller lock scopes for nicer run time characteristics? Regards, Markus