From patchwork Fri May 15 14:36:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11551967 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 1BBD914C0 for ; Fri, 15 May 2020 14:38:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EFE9020671 for ; Fri, 15 May 2020 14:38:45 +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="l4tX9YFz" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728306AbgEOOip (ORCPT ); Fri, 15 May 2020 10:38:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35830 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1728215AbgEOOi0 (ORCPT ); Fri, 15 May 2020 10:38:26 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 19E83C061A0C; Fri, 15 May 2020 07:38:26 -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=4ek5EujzgHPIbdEvHkQJFfygtnYVEDi+YXEorFGRVI0=; b=l4tX9YFz1biQcqnXAemRnxp5lx 7vqRgeqRIM/XatP0wlI3r53NWkSatcw1JkXrkTawHRnmaQBlT8KuOTt+J4BcCTkdGkQu3rT7bWyke NX9OoUXznrAXIJQctXHyRhx9Y2p3y64yEKDoJRhsu0CyLBLe+T587LSnThHwB4WLxmPrd/Rkr3c50 Z+g03UXrGqenMeETgm8UGInxZ7ETcQM2A1HTnzRQvjDcKBE1QA76OmzUAkN+IRiyrbC/4Smuc9tEg J4Dd1AmjTzPqWdEyWEo9O7WTJXIJhU65h5gjraEBoNCOLQqqryFgdSjtY44x78yOGMWmDj7qUiYHo qWAE+Z9Q==; 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 1jZbTY-0005IX-Ha; Fri, 15 May 2020 14:38:13 +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 28/29] nommu: use flush_icache_user_range in brk and mmap Date: Fri, 15 May 2020 16:36:45 +0200 Message-Id: <20200515143646.3857579-29-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 These obviously operate on user addresses. Signed-off-by: Christoph Hellwig --- mm/nommu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/nommu.c b/mm/nommu.c index 318df4e236c99..aed7acaed2383 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -443,7 +443,7 @@ SYSCALL_DEFINE1(brk, unsigned long, brk) /* * Ok, looks good - let it rip. */ - flush_icache_range(mm->brk, brk); + flush_icache_user_range(mm->brk, brk); return mm->brk = brk; } @@ -1287,7 +1287,7 @@ unsigned long do_mmap(struct file *file, /* we flush the region from the icache only when the first executable * mapping of it is made */ if (vma->vm_flags & VM_EXEC && !region->vm_icache_flushed) { - flush_icache_range(region->vm_start, region->vm_end); + flush_icache_user_range(region->vm_start, region->vm_end); region->vm_icache_flushed = true; }