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 X-Spam-Level: X-Spam-Status: No, score=-6.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS autolearn=no 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 BF744C2B9F4 for ; Mon, 14 Jun 2021 23:59:15 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 5269761029 for ; Mon, 14 Jun 2021 23:59:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5269761029 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 8BB0C6B0036; Mon, 14 Jun 2021 19:59:14 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 86B0E6B006E; Mon, 14 Jun 2021 19:59:14 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 733956B0070; Mon, 14 Jun 2021 19:59:14 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0104.hostedemail.com [216.40.44.104]) by kanga.kvack.org (Postfix) with ESMTP id 410396B0036 for ; Mon, 14 Jun 2021 19:59:14 -0400 (EDT) Received: from smtpin04.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id C4FC3181AC9CB for ; Mon, 14 Jun 2021 23:59:13 +0000 (UTC) X-FDA: 78253998186.04.EC34906 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf29.hostedemail.com (Postfix) with ESMTP id 6A7FE371 for ; Mon, 14 Jun 2021 23:59:01 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id DAC476109D; Mon, 14 Jun 2021 23:59:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1623715152; bh=DeDcOKxjCJPYLHn+O+2KmBPi5xsxQnW4OXNCOmqwVTU=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=lObFGQpgL2aRuhzOqt4YeJXawc51N12QYWW1Sy+gwGJwPUS3gjkw4FuPHpDUX5Hrm L1aN1ytoiZ6PjVru99jv+9WctQFSZSTI/vE8p5T0sMee4hv3m/Vf9YxOCtn0bRy4V4 M5BLBPvuhtblGdOYCnuczZywOaS8ntgiNmS8yALY= Date: Mon, 14 Jun 2021 16:59:11 -0700 From: Andrew Morton To: Claudio Imbrenda Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-s390@vger.kernel.org, frankja@linux.ibm.com, borntraeger@de.ibm.com, cohuck@redhat.com, david@redhat.com, linux-mm@kvack.org, Nicholas Piggin , Uladzislau Rezki , Catalin Marinas , Thomas Gleixner , Ingo Molnar , David Rientjes , Christoph Hellwig Subject: Re: [PATCH v4 0/2] mm: add vmalloc_no_huge and use it Message-Id: <20210614165911.1ee6c9459ac7f746906e3f0b@linux-foundation.org> In-Reply-To: <20210614132357.10202-1-imbrenda@linux.ibm.com> References: <20210614132357.10202-1-imbrenda@linux.ibm.com> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 6A7FE371 X-Stat-Signature: 7unk5wee43p8ezniydgqg7aebe3duf88 Authentication-Results: imf29.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=lObFGQpg; dmarc=none; spf=pass (imf29.hostedemail.com: domain of akpm@linux-foundation.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org X-HE-Tag: 1623715141-375537 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: On Mon, 14 Jun 2021 15:23:55 +0200 Claudio Imbrenda wrote: > Add vmalloc_no_huge and export it, so modules can allocate memory with > small pages. > > Use the newly added vmalloc_no_huge in KVM on s390 to get around a > hardware limitation. Thanks. I added Fixes: 121e6f3258fe3 ("mm/vmalloc: hugepage vmalloc mappings") and also addressed the whitespace thing which Christoph noted. No cc:stable since 121e6f3258fe3 wasn't in 5.12.