From patchwork Mon Aug 30 00:52:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: zhangyiru X-Patchwork-Id: 12464451 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E74BCC432BE for ; Mon, 30 Aug 2021 02:05:34 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 3824C60F44 for ; Mon, 30 Aug 2021 02:05:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 3824C60F44 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 42F6A8D0001; Sun, 29 Aug 2021 22:05:33 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 3C2FB6B0071; Sun, 29 Aug 2021 22:05:33 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 2A6AE8D0001; Sun, 29 Aug 2021 22:05:33 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0113.hostedemail.com [216.40.44.113]) by kanga.kvack.org (Postfix) with ESMTP id 17A926B006C for ; Sun, 29 Aug 2021 22:05:33 -0400 (EDT) Received: from smtpin17.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id A6E66230F0 for ; Mon, 30 Aug 2021 02:05:32 +0000 (UTC) X-FDA: 78530105304.17.7BF3955 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by imf19.hostedemail.com (Postfix) with ESMTP id D157CB00009D for ; Mon, 30 Aug 2021 02:05:31 +0000 (UTC) Received: from dggemv711-chm.china.huawei.com (unknown [172.30.72.54]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4GyYYB6w62zYvsH; Mon, 30 Aug 2021 10:04:46 +0800 (CST) Received: from dggpemm500012.china.huawei.com (7.185.36.89) by dggemv711-chm.china.huawei.com (10.1.198.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Mon, 30 Aug 2021 10:05:26 +0800 Received: from huawei.com (10.175.104.170) by dggpemm500012.china.huawei.com (7.185.36.89) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.8; Mon, 30 Aug 2021 10:05:25 +0800 From: zhangyiru To: CC: , , Subject: [PATCH] mm, hugetlb: remove ulimit restriction for SHM_HUGETLB Date: Sun, 29 Aug 2021 20:52:11 -0400 Message-ID: <20210830005211.103249-1-zhangyiru3@huawei.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 X-Originating-IP: [10.175.104.170] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To dggpemm500012.china.huawei.com (7.185.36.89) X-CFilter-Loop: Reflected X-Rspamd-Queue-Id: D157CB00009D Authentication-Results: imf19.hostedemail.com; dkim=none; dmarc=pass (policy=none) header.from=huawei.com; spf=pass (imf19.hostedemail.com: domain of zhangyiru3@huawei.com designates 45.249.212.187 as permitted sender) smtp.mailfrom=zhangyiru3@huawei.com X-Rspamd-Server: rspam01 X-Stat-Signature: mbspy9u5rakrjemoth46nhd4mfitzjho X-HE-Tag: 1630289131-475679 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: remove mlock ulimit for SHM_HUGETLB commit 21a3c273f88c9cbbaf7e ("mm, hugetlb: add thread name and pid to SHM_HUGETLB mlock rlimit warning") marked this as deprecated in 2012, but it is not deleted yet Signed-off-by: zhangyiru --- fs/hugetlbfs/inode.c | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-) diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index cdfb1ae78a3f..c092c4931c3e 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -1463,18 +1463,8 @@ struct file *hugetlb_file_setup(const char *name, size_t size, if (!mnt) return ERR_PTR(-ENOENT); - if (creat_flags == HUGETLB_SHMFS_INODE && !can_do_hugetlb_shm()) { - *ucounts = current_ucounts(); - if (user_shm_lock(size, *ucounts)) { - task_lock(current); - pr_warn_once("%s (%d): Using mlock ulimits for SHM_HUGETLB is deprecated\n", - current->comm, current->pid); - task_unlock(current); - } else { - *ucounts = NULL; - return ERR_PTR(-EPERM); - } - } + if (creat_flags == HUGETLB_SHMFS_INODE && !can_do_hugetlb_shm()) + return ERR_PTR(-EPERM); file = ERR_PTR(-ENOSPC); inode = hugetlbfs_get_inode(mnt->mnt_sb, NULL, S_IFREG | S_IRWXUGO, 0);