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=-8.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 5225CC28CC1 for ; Sat, 1 Jun 2019 07:51:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 26DDE2716F for ; Sat, 1 Jun 2019 07:51:39 +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="rcHoPkNB" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727109AbfFAHus (ORCPT ); Sat, 1 Jun 2019 03:50:48 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:50908 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726349AbfFAHup (ORCPT ); Sat, 1 Jun 2019 03:50:45 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.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:Resent-Date:Resent-From :Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=yY/ra2PGFgbg7XqU3FF0wFq0V6rCLZSmY3LqWPMhNa4=; b=rcHoPkNBcn5I35lT0nSXPSoUmK 4vxZRGXHEDwfmRiduNeBcHUEvPxoD8OJrN0S5PQmE3re/arNQar+m7iSLIMTsowGpB4Ex04zPb/gN 29PPacLkhP5k/ojj3/Pa75U++zPDy3dYVb7BB3Paj88dFUs47D6xLlvkBHuqM7Il063uPmOqZZNcF wD8Tfl4VS9E3grfV6nmX4Tt/FE4OvZDbbNPrwWgUWcHBoL/a9qclxKhIIBdy59SE5ZBiYm89iK4RM INzpbbwRa9Sf7Gyw3QMcVnAV2C3wd8IfP0CShLYG4iQifTBRdaFTvSUlYc0QaQRmDfkZUOHZgrJuX 0fxi4omg==; Received: from 217-76-161-89.static.highway.a1.net ([217.76.161.89] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1hWymI-0007kx-5x; Sat, 01 Jun 2019 07:50:11 +0000 From: Christoph Hellwig To: Linus Torvalds , Paul Burton , James Hogan , Yoshinori Sato , Rich Felker , "David S. Miller" Cc: Nicholas Piggin , Khalid Aziz , Andrey Konovalov , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , linux-mips@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org, x86@kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 02/16] mm: use untagged_addr() for get_user_pages_fast addresses Date: Sat, 1 Jun 2019 09:49:45 +0200 Message-Id: <20190601074959.14036-3-hch@lst.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190601074959.14036-1-hch@lst.de> References: <20190601074959.14036-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This will allow sparc64 to override its ADI tags for get_user_pages and get_user_pages_fast. Signed-off-by: Christoph Hellwig --- mm/gup.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/gup.c b/mm/gup.c index f173fcbaf1b2..9775f7675653 100644 --- a/mm/gup.c +++ b/mm/gup.c @@ -2145,7 +2145,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write, unsigned long flags; int nr = 0; - start &= PAGE_MASK; + start = untagged_addr(start) & PAGE_MASK; len = (unsigned long) nr_pages << PAGE_SHIFT; end = start + len; @@ -2218,7 +2218,7 @@ int get_user_pages_fast(unsigned long start, int nr_pages, unsigned long addr, len, end; int nr = 0, ret = 0; - start &= PAGE_MASK; + start = untagged_addr(start) & PAGE_MASK; addr = start; len = (unsigned long) nr_pages << PAGE_SHIFT; end = start + len; -- 2.20.1