From patchwork Fri Oct 28 02:33:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Al Viro X-Patchwork-Id: 13022988 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C434BECAAA1 for ; Fri, 28 Oct 2022 02:34:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236379AbiJ1Ce3 (ORCPT ); Thu, 27 Oct 2022 22:34:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46432 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236213AbiJ1CeP (ORCPT ); Thu, 27 Oct 2022 22:34:15 -0400 Received: from zeniv.linux.org.uk (zeniv.linux.org.uk [IPv6:2a03:a000:7:0:5054:ff:fe1c:15ff]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C5349BD67D; Thu, 27 Oct 2022 19:34:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=linux.org.uk; s=zeniv-20220401; h=Sender:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description; bh=qufNA/5kQeMMQSclQfaUC/Q9jzBAxgNcm9w2RfpdC1I=; b=guEjN2ncL7ybD6mN2yx+05P8sw XwP2uFN1PVlpY4ZzDcfii84vlnSN1VSAo/tpAQJoF2GuJKshqphLeM2R/nM3vG5+AtaN85pL9Dbi9 /RPox8fe5y3FrfZYK3uSKQa958CWZusW11/VVwuUoU4arCks/52vWugnPgi+QzjJa5DYotpvFjMQr RDzpQzxR2gGQBITEXWoLQ/gPvDGPrZUQsgzQQhKIqa52CLvkoi6P0/e2ZTO3wbISFfUliClgtW1K0 mJ9vrkQDxsJ3QvwGykpn4y7WjFVBdMltqn/h/CVTLJmatfGdy0Eav8p6fUXwTNg+CAvu0gZjnTrC6 QCg24Fpw==; Received: from viro by zeniv.linux.org.uk with local (Exim 4.96 #2 (Red Hat Linux)) id 1ooFBx-00EorR-2n; Fri, 28 Oct 2022 02:33:53 +0000 From: Al Viro To: Christoph Hellwig Cc: David Howells , willy@infradead.org, dchinner@redhat.com, Steve French , Shyam Prasad N , Rohith Surabattula , Jeff Layton , Ira Weiny , torvalds@linux-foundation.org, linux-cifs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 10/12] [xen] fix "direction" argument of iov_iter_kvec() Date: Fri, 28 Oct 2022 03:33:50 +0100 Message-Id: <20221028023352.3532080-10-viro@zeniv.linux.org.uk> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20221028023352.3532080-1-viro@zeniv.linux.org.uk> References: <20221028023352.3532080-1-viro@zeniv.linux.org.uk> MIME-Version: 1.0 Sender: Al Viro Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Signed-off-by: Al Viro --- drivers/xen/pvcalls-back.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/xen/pvcalls-back.c b/drivers/xen/pvcalls-back.c index d6f945fd4147..21b9c850a382 100644 --- a/drivers/xen/pvcalls-back.c +++ b/drivers/xen/pvcalls-back.c @@ -129,13 +129,13 @@ static bool pvcalls_conn_back_read(void *opaque) if (masked_prod < masked_cons) { vec[0].iov_base = data->in + masked_prod; vec[0].iov_len = wanted; - iov_iter_kvec(&msg.msg_iter, WRITE, vec, 1, wanted); + iov_iter_kvec(&msg.msg_iter, READ, vec, 1, wanted); } else { vec[0].iov_base = data->in + masked_prod; vec[0].iov_len = array_size - masked_prod; vec[1].iov_base = data->in; vec[1].iov_len = wanted - vec[0].iov_len; - iov_iter_kvec(&msg.msg_iter, WRITE, vec, 2, wanted); + iov_iter_kvec(&msg.msg_iter, READ, vec, 2, wanted); } atomic_set(&map->read, 0); @@ -188,13 +188,13 @@ static bool pvcalls_conn_back_write(struct sock_mapping *map) if (pvcalls_mask(prod, array_size) > pvcalls_mask(cons, array_size)) { vec[0].iov_base = data->out + pvcalls_mask(cons, array_size); vec[0].iov_len = size; - iov_iter_kvec(&msg.msg_iter, READ, vec, 1, size); + iov_iter_kvec(&msg.msg_iter, WRITE, vec, 1, size); } else { vec[0].iov_base = data->out + pvcalls_mask(cons, array_size); vec[0].iov_len = array_size - pvcalls_mask(cons, array_size); vec[1].iov_base = data->out; vec[1].iov_len = size - vec[0].iov_len; - iov_iter_kvec(&msg.msg_iter, READ, vec, 2, size); + iov_iter_kvec(&msg.msg_iter, WRITE, vec, 2, size); } atomic_set(&map->write, 0);