From patchwork Fri May 15 14:36:43 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11551961 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 85BE014C0 for ; Fri, 15 May 2020 14:38:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 65BA82075F for ; Fri, 15 May 2020 14:38:44 +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="PrewDot9" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728212AbgEOOiY (ORCPT ); Fri, 15 May 2020 10:38:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35816 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1728179AbgEOOiW (ORCPT ); Fri, 15 May 2020 10:38:22 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F3B76C061A0C; Fri, 15 May 2020 07:38:21 -0700 (PDT) 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; bh=9nkBbtmLvQl1eKzV5tIp1XNxgG4m4pb8wLV/D1oxyTY=; b=PrewDot91eBJtI4CmunBQt8auz 5Qf471gFdXaMKcMey4uvcCm1/zMSb7AxBI1tT91bJJlRm1ScK54gyxd4uAUXCbf03WqD9x+ol2NOj UguMrDDZudEcN4LA49bcHmbdnURGtDw3k2BGxwBkRkR12N8iephTJqGeDSHQWQjM0Ow0WcLkL4gY/ NvIyYhsyq46MDhXpWE2O/X2e5CfxR+BoufSX/GEsGPR4xUs6W136aHYY0NicjX+NzxB21IB+GLTNj zSG37nkB1058MbJlOxd8otsj2ePnMSqxje3+vd1BrLDKVnhnA+TDiS4ToD8fPt86HMsp5w6cR7CE2 3eV0aDWg==; Received: from [2001:4bb8:188:1506:c70:4a89:bc61:2] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jZbTT-0005Dh-3V; Fri, 15 May 2020 14:38:07 +0000 From: Christoph Hellwig To: Andrew Morton , Arnd Bergmann , Roman Zippel Cc: Jessica Yu , Michal Simek , x86@kernel.org, linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org, linux-fsdevel@vger.kernel.org Subject: [PATCH 26/29] exec: use flush_icache_user_range in read_code Date: Fri, 15 May 2020 16:36:43 +0200 Message-Id: <20200515143646.3857579-27-hch@lst.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200515143646.3857579-1-hch@lst.de> References: <20200515143646.3857579-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org read_code operates on user addresses. Signed-off-by: Christoph Hellwig --- fs/exec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/exec.c b/fs/exec.c index a4f766f296f8f..c541867316a63 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1033,7 +1033,7 @@ ssize_t read_code(struct file *file, unsigned long addr, loff_t pos, size_t len) { ssize_t res = vfs_read(file, (void __user *)addr, len, &pos); if (res > 0) - flush_icache_range(addr, addr + len); + flush_icache_user_range(addr, addr + len); return res; } EXPORT_SYMBOL(read_code);