From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 30846CD128A for ; Mon, 1 Apr 2024 03:41:21 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 88A2B6B008C; Sun, 31 Mar 2024 23:41:20 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 813576B0092; Sun, 31 Mar 2024 23:41:20 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 68D476B0093; Sun, 31 Mar 2024 23:41:20 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 420F16B008C for ; Sun, 31 Mar 2024 23:41:20 -0400 (EDT) Received: from smtpin25.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id C7B96A068D for ; Mon, 1 Apr 2024 03:41:19 +0000 (UTC) X-FDA: 81959562678.25.F0EECB5 Received: from szxga04-in.huawei.com (szxga04-in.huawei.com [45.249.212.190]) by imf12.hostedemail.com (Postfix) with ESMTP id EA78040006 for ; Mon, 1 Apr 2024 03:41:16 +0000 (UTC) Authentication-Results: imf12.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf12.hostedemail.com: domain of linmiaohe@huawei.com designates 45.249.212.190 as permitted sender) smtp.mailfrom=linmiaohe@huawei.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1711942877; a=rsa-sha256; cv=none; b=UiS7VZTlWGgB9Upa7URvOKEZ+jYboZkDU9zLRyJLevL4E8ArEflCdCNJhiCAmc1/NwQYAH KSLi+cf87ysqWNzwrBNW4R30JqmL5gJJU41UhB4UwAtbAFZZED+UEBV1LJm2wtBH0bWhmY tKqW3oVQR2AgF3KdC4e/RVZqaHUC1CU= ARC-Authentication-Results: i=1; imf12.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf12.hostedemail.com: domain of linmiaohe@huawei.com designates 45.249.212.190 as permitted sender) smtp.mailfrom=linmiaohe@huawei.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1711942877; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=/Nb/DdK7BgETKoOWFd4fA9lJPaj4KTokSZEja2SKQJM=; b=7tLw7FdcgXtEDpPx0PjofXi7T3mWn4vuo2nI/ufZKFQPvEwwF2AR7TeIEYx392FQdqgn/9 Ab2yQdqAAc9Fsae7LclcA9EVY/+QLJISVFc2o0V6Ib96kdBIlxfcKrpmOT4sMmtyHiqcRd GGSR6QrtaoI+J0D0MeuAfBuAJt6CyvM= Received: from mail.maildlp.com (unknown [172.19.88.214]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4V7Gvt1Wpsz1xtQy; Mon, 1 Apr 2024 11:39:06 +0800 (CST) Received: from canpemm500002.china.huawei.com (unknown [7.192.104.244]) by mail.maildlp.com (Postfix) with ESMTPS id C7BCE1A016F; Mon, 1 Apr 2024 11:41:11 +0800 (CST) Received: from [10.173.135.154] (10.173.135.154) by canpemm500002.china.huawei.com (7.192.104.244) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Mon, 1 Apr 2024 11:41:10 +0800 Subject: Re: [PATCH 1/7] memory: Remove the now superfluous sentinel element from ctl_table array To: CC: Luis Chamberlain , , , , , , , , , , , Andrew Morton , Muchun Song , Naoya Horiguchi , John Johansen , Paul Moore , James Morris , "Serge E. Hallyn" , David Howells , Jarkko Sakkinen , Kees Cook , Herbert Xu , "David S. Miller" , Jens Axboe , Pavel Begunkov , Atish Patra , Anup Patel , Will Deacon , Mark Rutland , Paul Walmsley , Palmer Dabbelt , Albert Ou References: <20240328-jag-sysctl_remset_misc-v1-0-47c1463b3af2@samsung.com> <20240328-jag-sysctl_remset_misc-v1-1-47c1463b3af2@samsung.com> From: Miaohe Lin Message-ID: <0e35e88d-3ea1-4f62-77e4-eb12e9f51583@huawei.com> Date: Mon, 1 Apr 2024 11:41:09 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 MIME-Version: 1.0 In-Reply-To: <20240328-jag-sysctl_remset_misc-v1-1-47c1463b3af2@samsung.com> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.173.135.154] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To canpemm500002.china.huawei.com (7.192.104.244) X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: EA78040006 X-Stat-Signature: 8wnhdzby5jqfftaqtux91cfo56kzwxi3 X-Rspam-User: X-HE-Tag: 1711942876-884442 X-HE-Meta: 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 2N+AKsGN dwR8w9azTCjULttGWjt/o2PGete9kRes8ZAk63a0kDK4Ws4OjHpko6MfiCf9ulr7Yhl3SsTeUvKc5joOGrmtWtjUQSUY7+B3u/0aw3DOT6hvKp16A7h9hoK7vyl/KARjFvqyrqpsFqhKHlPHyuIA4BzbzkQYiNGVBlOmcM6O831lL5PKYrIQn8CZqUxHS/8BdHQagDgnpfU+azp7g/WeokQTExqcVBrt5VURrqlJm60Km82JmXKzB1zrqJK0/5w3GWfO93SmmsShKVW3Lb+A8L39X6/t12L1cBk3AiDhjwgcw5ZyVLt0MBQ1vy02Y4Roqg85NtCBR6baLQAjn/NsOJYJ9AikLJj79kolD7n9+OFLvrXNVP36buEjNpaZxxdSRoZLP3Mc9kdzEt3C+LOs7V5Ml7o2w9yl6TjzfIAYNdD8Lac5kRdwkPxGzuq32gE/k/RijGk5WxWsCvFW97t9rC+fhXQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 2024/3/28 23:57, Joel Granados via B4 Relay wrote: > From: Joel Granados > > This commit comes at the tail end of a greater effort to remove the > empty elements at the end of the ctl_table arrays (sentinels) which will > reduce the overall build time size of the kernel and run time memory > bloat by ~64 bytes per sentinel (further information Link : > https://lore.kernel.org/all/ZO5Yx5JFogGi%2FcBo@bombadil.infradead.org/) > > Remove sentinel from all files under mm/ that register a sysctl table. > > Signed-off-by: Joel Granados Reviewed-by: Miaohe Lin Thanks. > --- > mm/compaction.c | 1 - > mm/hugetlb.c | 1 - > mm/hugetlb_vmemmap.c | 1 - > mm/memory-failure.c | 1 - > mm/oom_kill.c | 1 - > mm/page-writeback.c | 1 - > mm/page_alloc.c | 1 - > 7 files changed, 7 deletions(-) > > diff --git a/mm/compaction.c b/mm/compaction.c > index 807b58e6eb68..e8a047afca22 100644 > --- a/mm/compaction.c > +++ b/mm/compaction.c > @@ -3345,7 +3345,6 @@ static struct ctl_table vm_compaction[] = { > .extra1 = SYSCTL_ZERO, > .extra2 = SYSCTL_ONE, > }, > - { } > }; > > static int __init kcompactd_init(void) > diff --git a/mm/hugetlb.c b/mm/hugetlb.c > index 23ef240ba48a..7ac5240a197d 100644 > --- a/mm/hugetlb.c > +++ b/mm/hugetlb.c > @@ -5045,7 +5045,6 @@ static struct ctl_table hugetlb_table[] = { > .mode = 0644, > .proc_handler = hugetlb_overcommit_handler, > }, > - { } > }; > > static void hugetlb_sysctl_init(void) > diff --git a/mm/hugetlb_vmemmap.c b/mm/hugetlb_vmemmap.c > index da177e49d956..b9a55322e52c 100644 > --- a/mm/hugetlb_vmemmap.c > +++ b/mm/hugetlb_vmemmap.c > @@ -679,7 +679,6 @@ static struct ctl_table hugetlb_vmemmap_sysctls[] = { > .mode = 0644, > .proc_handler = proc_dobool, > }, > - { } > }; > > static int __init hugetlb_vmemmap_init(void) > diff --git a/mm/memory-failure.c b/mm/memory-failure.c > index 9349948f1abf..6a112f9ecf91 100644 > --- a/mm/memory-failure.c > +++ b/mm/memory-failure.c > @@ -141,7 +141,6 @@ static struct ctl_table memory_failure_table[] = { > .extra1 = SYSCTL_ZERO, > .extra2 = SYSCTL_ONE, > }, > - { } > }; > > /* > diff --git a/mm/oom_kill.c b/mm/oom_kill.c > index 8d6a207c3c59..4d7a0004df2c 100644 > --- a/mm/oom_kill.c > +++ b/mm/oom_kill.c > @@ -724,7 +724,6 @@ static struct ctl_table vm_oom_kill_table[] = { > .mode = 0644, > .proc_handler = proc_dointvec, > }, > - {} > }; > #endif > > diff --git a/mm/page-writeback.c b/mm/page-writeback.c > index 3e19b87049db..fba324e1a010 100644 > --- a/mm/page-writeback.c > +++ b/mm/page-writeback.c > @@ -2291,7 +2291,6 @@ static struct ctl_table vm_page_writeback_sysctls[] = { > .mode = 0644, > .proc_handler = proc_dointvec_jiffies, > }, > - {} > }; > #endif > > diff --git a/mm/page_alloc.c b/mm/page_alloc.c > index 14d39f34d336..8b9820620fe3 100644 > --- a/mm/page_alloc.c > +++ b/mm/page_alloc.c > @@ -6211,7 +6211,6 @@ static struct ctl_table page_alloc_sysctl_table[] = { > .extra2 = SYSCTL_ONE_HUNDRED, > }, > #endif > - {} > }; > > void __init page_alloc_sysctl_init(void) >