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ESMTP id S1726542AbeHHMFt (ORCPT ); Wed, 8 Aug 2018 08:05:49 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=virtuozzo.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=P4Q0X6BD02QRMjMXQj+vnCMcJmNOLeFGY9NIX7scrJo=; b=H3MGs8AIU5Mel3nA4MoLRGBqrCk8beUX+Ax2byQ5JplY0K1V4lQh0BjCFkkLsVn0HFb8AU6bwe4i+sO1p0KOFDpWAdkYL0jHsN6dPd9zoXZQVq9wXlh2cHZ/FUqrC2Vxc1ev6e4RAnCUkuoHiwKfVTShkNwAwQdBSpJfVjH9lrQ= Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=ktkhai@virtuozzo.com; Received: from [172.16.25.169] (185.231.240.5) by DB6PR0801MB2024.eurprd08.prod.outlook.com (2603:10a6:4:76::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1038.21; Wed, 8 Aug 2018 09:46:45 +0000 Subject: Re: [PATCH RFC 01/10] rcu: Make CONFIG_SRCU unconditionally enabled To: Stephen Rothwell Cc: akpm@linux-foundation.org, gregkh@linuxfoundation.org, rafael@kernel.org, viro@zeniv.linux.org.uk, darrick.wong@oracle.com, paulmck@linux.vnet.ibm.com, josh@joshtriplett.org, rostedt@goodmis.org, mathieu.desnoyers@efficios.com, jiangshanlai@gmail.com, hughd@google.com, shuah@kernel.org, robh@kernel.org, ulf.hansson@linaro.org, aspriel@gmail.com, vivek.gautam@codeaurora.org, robin.murphy@arm.com, joe@perches.com, heikki.krogerus@linux.intel.com, vdavydov.dev@gmail.com, mhocko@suse.com, chris@chris-wilson.co.uk, penguin-kernel@I-love.SAKURA.ne.jp, aryabinin@virtuozzo.com, willy@infradead.org, ying.huang@intel.com, shakeelb@google.com, jbacik@fb.com, mingo@kernel.org, mhiramat@kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org References: <153365347929.19074.12509495712735843805.stgit@localhost.localdomain> <153365625652.19074.8434946780002619802.stgit@localhost.localdomain> <20180808110542.6df3f48f@canb.auug.org.au> From: Kirill Tkhai Message-ID: Date: Wed, 8 Aug 2018 12:46:39 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) 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X-Microsoft-Exchange-Diagnostics: 1;DB6PR0801MB2024;20:C+aYjh+a/Ohcy4W1NSZ4DJwfVK0bdr6M+3ro4pZop1SNiMt0SH7EcXQM30CJBhCkpD18NQuo/Zg9zu00DxLInUspKPP+PdpAGYG1ik19ZWaTOgy0yhSNSusd0ljCkV8XXxZj8KWW+dXjHdKyNJeNvVvnVB/I23QUNniy8meW2po= X-OriginatorOrg: virtuozzo.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Aug 2018 09:46:45.8159 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 0ac2b8ee-a5a0-4646-c83c-08d5fd13dc33 X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 0bc7f26d-0264-416e-a6fc-8352af79c58f X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB6PR0801MB2024 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 08.08.2018 04:05, Stephen Rothwell wrote: > Hi Kirill, > > On Tue, 07 Aug 2018 18:37:36 +0300 Kirill Tkhai wrote: >> >> This patch kills all CONFIG_SRCU defines and >> the code under !CONFIG_SRCU. >> >> Signed-off-by: Kirill Tkhai >> --- >> drivers/base/core.c | 42 -------------------- >> include/linux/device.h | 2 - >> include/linux/rcutiny.h | 4 -- >> include/linux/srcu.h | 5 -- >> kernel/notifier.c | 3 - >> kernel/rcu/Kconfig | 12 +----- >> kernel/rcu/tree.h | 5 -- >> kernel/rcu/update.c | 4 -- >> .../selftests/rcutorture/doc/TREE_RCU-kconfig.txt | 5 -- >> 9 files changed, 3 insertions(+), 79 deletions(-) > > You left quite a few "select SRCU" statements scattered across Kconfig > files: > > $ git grep -l 'select SRCU' '*Kconfig*' > arch/arm/kvm/Kconfig > arch/arm64/kvm/Kconfig > arch/mips/kvm/Kconfig > arch/powerpc/kvm/Kconfig > arch/s390/kvm/Kconfig > arch/x86/Kconfig > arch/x86/kvm/Kconfig > block/Kconfig > drivers/clk/Kconfig > drivers/cpufreq/Kconfig > drivers/dax/Kconfig > drivers/devfreq/Kconfig > drivers/hwtracing/stm/Kconfig > drivers/md/Kconfig > drivers/net/Kconfig > drivers/opp/Kconfig > fs/btrfs/Kconfig > fs/notify/Kconfig > fs/quota/Kconfig > init/Kconfig > kernel/rcu/Kconfig > kernel/rcu/Kconfig.debug > mm/Kconfig > security/tomoyo/Kconfig Yeah, thanks, Stephen.