From patchwork Thu May 28 05:40:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11574701 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 2F56A14C0 for ; Thu, 28 May 2020 05:40:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 16E2D2089D for ; Thu, 28 May 2020 05:40:56 +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="Xa/oTOAh" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727878AbgE1Fkz (ORCPT ); Thu, 28 May 2020 01:40:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44672 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725984AbgE1Fky (ORCPT ); Thu, 28 May 2020 01:40:54 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5E1E7C05BD1E; Wed, 27 May 2020 22:40:54 -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=IeHy1UWBjGCugKPZsL/McSR8vAod70zeUAWlcMoC1+A=; b=Xa/oTOAhhpZ8du9OaOuGoXzKBa JBqSCM9urQjq5Mvj/UHs52DmSBe5PCEOAHm2kTv4BwJ9QDtVwXJXxjS1Aw1EoCu8OfEkkLj7vyXHw kyEGjhj5ox9glYGjcUXxIIYPcDCELAHGI+MMv97q1X9OadIon81Cyk/Ogm7uEQ6uQCnTJIQMWkLSz Z6b7YFbiwwGRF0h7SUMA6Ymh9rGD6sNNbe34Mx3nundu0YA1voT3xjxnPegj+ZnzC6cufrawnlHkf B9OfEFdFcYwPM5amrzYVL5gg3+gvZx+EulLBiXnHTlKmvuCH1cVy4n/ij4tzlCAv7t630KlzMitQw n0FrmPZg==; Received: from p4fdb1ad2.dip0.t-ipconnect.de ([79.219.26.210] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jeBHf-0002Ji-3L; Thu, 28 May 2020 05:40:51 +0000 From: Christoph Hellwig To: Al Viro Cc: Linus Torvalds , Ian Kent , David Howells , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-security-module@vger.kernel.org, netfilter-devel@vger.kernel.org Subject: [PATCH 02/14] autofs: switch to kernel_write Date: Thu, 28 May 2020 07:40:31 +0200 Message-Id: <20200528054043.621510-3-hch@lst.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200528054043.621510-1-hch@lst.de> References: <20200528054043.621510-1-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: owner-linux-security-module@vger.kernel.org Precedence: bulk List-ID: While pipes don't really need sb_writers projection, __kernel_write is an interface better kept private, and the additional rw_verify_area does not hurt here. Signed-off-by: Christoph Hellwig Acked-by: Ian Kent --- fs/autofs/waitq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/autofs/waitq.c b/fs/autofs/waitq.c index b04c528b19d34..74c886f7c51cb 100644 --- a/fs/autofs/waitq.c +++ b/fs/autofs/waitq.c @@ -53,7 +53,7 @@ static int autofs_write(struct autofs_sb_info *sbi, mutex_lock(&sbi->pipe_mutex); while (bytes) { - wr = __kernel_write(file, data, bytes, &file->f_pos); + wr = kernel_write(file, data, bytes, &file->f_pos); if (wr <= 0) break; data += wr;