From owner-svn-src-all@freebsd.org  Mon Jun 26 12:17:05 2017
Return-Path: <owner-svn-src-all@freebsd.org>
Delivered-To: svn-src-all@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 7CD01DA90E2;
 Mon, 26 Jun 2017 12:17:05 +0000 (UTC) (envelope-from kib@FreeBSD.org)
Received: from repo.freebsd.org (repo.freebsd.org
 [IPv6:2610:1c1:1:6068::e6a:0])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 4C0DF76563;
 Mon, 26 Jun 2017 12:17:05 +0000 (UTC) (envelope-from kib@FreeBSD.org)
Received: from repo.freebsd.org ([127.0.1.37])
 by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id v5QCH4eP090153;
 Mon, 26 Jun 2017 12:17:04 GMT (envelope-from kib@FreeBSD.org)
Received: (from kib@localhost)
 by repo.freebsd.org (8.15.2/8.15.2/Submit) id v5QCH4nM090152;
 Mon, 26 Jun 2017 12:17:04 GMT (envelope-from kib@FreeBSD.org)
Message-Id: <201706261217.v5QCH4nM090152@repo.freebsd.org>
X-Authentication-Warning: repo.freebsd.org: kib set sender to kib@FreeBSD.org
 using -f
From: Konstantin Belousov <kib@FreeBSD.org>
Date: Mon, 26 Jun 2017 12:17:04 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org
Subject: svn commit: r320356 - stable/11/sys/kern
X-SVN-Group: stable-11
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-BeenThere: svn-src-all@freebsd.org
X-Mailman-Version: 2.1.23
Precedence: list
List-Id: "SVN commit messages for the entire src tree \(except for &quot;
 user&quot; and &quot; projects&quot; \)" <svn-src-all.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/svn-src-all>,
 <mailto:svn-src-all-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-all/>
List-Post: <mailto:svn-src-all@freebsd.org>
List-Help: <mailto:svn-src-all-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/svn-src-all>,
 <mailto:svn-src-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 26 Jun 2017 12:17:05 -0000

Author: kib
Date: Mon Jun 26 12:17:04 2017
New Revision: 320356
URL: https://svnweb.freebsd.org/changeset/base/320356

Log:
  MFC r320108:
  Allow negative aio_offset only for the read and write LIO ops on
  device nodes.
  
  Approved by:	re (marius)

Modified:
  stable/11/sys/kern/vfs_aio.c
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/sys/kern/vfs_aio.c
==============================================================================
--- stable/11/sys/kern/vfs_aio.c	Mon Jun 26 09:34:41 2017	(r320355)
+++ stable/11/sys/kern/vfs_aio.c	Mon Jun 26 12:17:04 2017	(r320356)
@@ -1550,7 +1550,9 @@ aio_aqueue(struct thread *td, struct aiocb *ujob, stru
 		goto aqueue_fail;
 	}
 
-	if (opcode != LIO_SYNC && job->uaiocb.aio_offset == -1LL) {
+	if ((opcode == LIO_READ || opcode == LIO_WRITE) &&
+	    job->uaiocb.aio_offset < 0 &&
+	    (fp->f_vnode == NULL || fp->f_vnode->v_type != VCHR)) {
 		error = EINVAL;
 		goto aqueue_fail;
 	}