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=-3.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=no 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 799B1C433E0 for ; Mon, 8 Jun 2020 04:42:46 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 341D42081A for ; Mon, 8 Jun 2020 04:42:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="rx7Y/oOX" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 341D42081A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id D08D16B00C8; Mon, 8 Jun 2020 00:42:45 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id CBCBB6B00C9; Mon, 8 Jun 2020 00:42:45 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id BF6276B00CA; Mon, 8 Jun 2020 00:42:45 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0006.hostedemail.com [216.40.44.6]) by kanga.kvack.org (Postfix) with ESMTP id A53DD6B00C8 for ; Mon, 8 Jun 2020 00:42:45 -0400 (EDT) Received: from smtpin07.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 64423801BB6A for ; Mon, 8 Jun 2020 04:42:45 +0000 (UTC) X-FDA: 76904799090.07.corn46_0e0075b26db7 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin07.hostedemail.com (Postfix) with ESMTP id 3971118033E79 for ; Mon, 8 Jun 2020 04:42:45 +0000 (UTC) X-HE-Tag: corn46_0e0075b26db7 X-Filterd-Recvd-Size: 2146 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf25.hostedemail.com (Postfix) with ESMTP for ; Mon, 8 Jun 2020 04:42:44 +0000 (UTC) Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0304620835; Mon, 8 Jun 2020 04:42:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591591364; bh=w+H7IElMUlvaTTzbvxideGbLgGww7NMeb2FY3bMEMgU=; h=Date:From:To:Subject:In-Reply-To:From; b=rx7Y/oOXWumTy54D6qPZFT0NWp+Y7FdP3CM6pG/7D0OIeiB93exINf/l7bvSlCxoj j6Qr8IdFiMXfv+o5nCXPWKecSBGHdT/RaY7y4Itavlp9opwA/+PvXpJ1MNBWIjkGgP Z+65vSHgOTdjjQo89VKIE11vO3QIZSli9BhnKnjs= Date: Sun, 07 Jun 2020 21:42:43 -0700 From: Andrew Morton To: akpm@linux-foundation.org, hch@lst.de, linux-mm@kvack.org, mm-commits@vger.kernel.org, torvalds@linux-foundation.org, viro@zeniv.linux.org.uk Subject: [patch 50/54] exec: use flush_icache_user_range in read_code Message-ID: <20200608044243.b-G7FjUW2%akpm@linux-foundation.org> In-Reply-To: <20200607212615.b050e41fac139a1e16fe00bd@linux-foundation.org> User-Agent: s-nail v14.8.16 X-Rspamd-Queue-Id: 3971118033E79 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam01 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Christoph Hellwig Subject: exec: use flush_icache_user_range in read_code read_code operates on user addresses. Link: http://lkml.kernel.org/r/20200515143646.3857579-27-hch@lst.de Signed-off-by: Christoph Hellwig Cc: Alexander Viro Signed-off-by: Andrew Morton --- fs/exec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/exec.c~exec-use-flush_icache_user_range-in-read_code +++ a/fs/exec.c @@ -1059,7 +1059,7 @@ ssize_t read_code(struct file *file, uns { 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); _