From patchwork Fri Sep 18 16:37:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11785425 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 01B3159D for ; Fri, 18 Sep 2020 16:42:16 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C3BC92076B for ; Fri, 18 Sep 2020 16:42:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="Iq9tLT7s" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C3BC92076B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kJJSN-0006D9-VL; Fri, 18 Sep 2020 16:41:55 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kJJSN-0006D4-Ea for xen-devel@lists.xenproject.org; Fri, 18 Sep 2020 16:41:55 +0000 X-Inumbo-ID: 53c54d8f-d119-4fcf-84c6-e3b1b56c8df1 Received: from casper.infradead.org (unknown [2001:8b0:10b:1236::1]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 53c54d8f-d119-4fcf-84c6-e3b1b56c8df1; Fri, 18 Sep 2020 16:41:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=0M3Bwf+Fb1Uh7qm3wAuaVRN1o0EMdwv1eVJjgWvN6Uc=; b=Iq9tLT7sl2PJmy70EuMRI0ETk5 AxqfF3KpbrXnO3sdWxyMXtjg6vmzVCUPIgJp1PSBRrtnNOt3URpzFx9nyVuPRqWYeJnC17qyzs/z5 r2xIF0XeLnAmttZMZUlNGMV3+tk4fJ+I7T+qKlfm9t7OTQRBVkjJdVN57/aEvs1nMsevMyEWyxJcz 73GEsGdAPgxx8H2hE4bVixZ3yMqWygz6wjfxib8AEillkuqZu/7D5PDkAQKxqxmg5Xbz7aJVTkLaG 2HQQUGmzaqsYj6cL46N9t5baeaLoYffCnXjIDHDf+rnba1z93sjGeb1AZUoCKhiGuvlkKaiBP6c/G 9S1pG1bg==; Received: from 089144214092.atnat0023.highway.a1.net ([89.144.214.92] helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kJJSE-0007Ec-4t; Fri, 18 Sep 2020 16:41:46 +0000 From: Christoph Hellwig To: Andrew Morton Cc: Peter Zijlstra , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Minchan Kim , Nitin Gupta , x86@kernel.org, xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-mm@kvack.org Subject: [PATCH 1/6] zsmalloc: switch from alloc_vm_area to get_vm_area Date: Fri, 18 Sep 2020 18:37:19 +0200 Message-Id: <20200918163724.2511-2-hch@lst.de> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200918163724.2511-1-hch@lst.de> References: <20200918163724.2511-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" There is no obvious reason why zsmalloc needs to pre-fault the PTEs given that it later uses map_kernel_range to just like vmap(). Signed-off-by: Christoph Hellwig --- mm/zsmalloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index c36fdff9a37131..3e4fe3259612fd 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -1122,7 +1122,7 @@ static inline int __zs_cpu_up(struct mapping_area *area) */ if (area->vm) return 0; - area->vm = alloc_vm_area(PAGE_SIZE * 2, NULL); + area->vm = get_vm_area(PAGE_SIZE * 2, 0); if (!area->vm) return -ENOMEM; return 0;