From patchwork Sun May 10 07:55:09 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11539055 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 554DC81 for ; Sun, 10 May 2020 08:05:57 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 19AA520731 for ; Sun, 10 May 2020 08:05:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="QsWNn708" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 19AA520731 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-riscv-bounces+patchwork-linux-riscv=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-Id:Date :Subject:To:From:Reply-To:Content-Type:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=4ek5EujzgHPIbdEvHkQJFfygtnYVEDi+YXEorFGRVI0=; b=QsWNn708+3qs58 Qpbgxd8nGpAT439jiqK36JEseRiAB6X1/p4fEuT3VdlVdxpm2Vvz0bmTlRnnd1D2WI/2qNiFq3s2z qhMbEUuRqhpJYZdIMdDb8JOR8PA9aQ0XSDhgJSxVSv1ebfOTqObLOQTly9nNzwtkIoMBkbFlCMCLE Y+5U+VSSjE6Hk9M4rTWoJjLniqfjeJI2C9yDeljlhXxZBqwrp3F6KOBUgPXmYKAKK4+2JzluoiuA8 ttVo1FxpXIQ21IeM5R+Cp0vVmmEn+61kdxu0gyj6Vhloe++gw8ci16znnj/Ry25AzJXYXQfPfO+QL ZCbFvNHG6eY8TM3ApAgw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jXgy9-0007ct-Gr; Sun, 10 May 2020 08:05:53 +0000 Received: from [2001:4bb8:180:9d3f:c70:4a89:bc61:2] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jXgpL-0001Mc-7G; Sun, 10 May 2020 07:56:47 +0000 From: Christoph Hellwig To: Andrew Morton , Arnd Bergmann , Roman Zippel Subject: [PATCH 30/31] nommu: use flush_icache_user_range in brk and mmap Date: Sun, 10 May 2020 09:55:09 +0200 Message-Id: <20200510075510.987823-31-hch@lst.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200510075510.987823-1-hch@lst.de> References: <20200510075510.987823-1-hch@lst.de> MIME-Version: 1.0 X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, linux-xtensa@linux-xtensa.org, Michal Simek , Jessica Yu , linux-ia64@vger.kernel.org, linux-c6x-dev@linux-c6x.org, linux-sh@vger.kernel.org, linux-hexagon@vger.kernel.org, x86@kernel.org, linux-um@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-m68k@lists.linux-m68k.org, openrisc@lists.librecores.org, linux-alpha@vger.kernel.org, sparclinux@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-riscv@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org Sender: "linux-riscv" Errors-To: linux-riscv-bounces+patchwork-linux-riscv=patchwork.kernel.org@lists.infradead.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; }