From owner-svn-src-stable-9@FreeBSD.ORG  Thu Jul 24 11:17:27 2014
Return-Path: <owner-svn-src-stable-9@FreeBSD.ORG>
Delivered-To: svn-src-stable-9@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 1D0C9FD3;
 Thu, 24 Jul 2014 11:17:27 +0000 (UTC)
Received: from svn.freebsd.org (svn.freebsd.org
 [IPv6:2001:1900:2254:2068::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 09D382428;
 Thu, 24 Jul 2014 11:17:27 +0000 (UTC)
Received: from svn.freebsd.org ([127.0.1.70])
 by svn.freebsd.org (8.14.8/8.14.8) with ESMTP id s6OBHQp5077238;
 Thu, 24 Jul 2014 11:17:26 GMT (envelope-from kib@svn.freebsd.org)
Received: (from kib@localhost)
 by svn.freebsd.org (8.14.8/8.14.8/Submit) id s6OBHQLV077237;
 Thu, 24 Jul 2014 11:17:26 GMT (envelope-from kib@svn.freebsd.org)
Message-Id: <201407241117.s6OBHQLV077237@svn.freebsd.org>
From: Konstantin Belousov <kib@FreeBSD.org>
Date: Thu, 24 Jul 2014 11:17:26 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org
Subject: svn commit: r269057 - stable/9/sys/kern
X-SVN-Group: stable-9
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-BeenThere: svn-src-stable-9@freebsd.org
X-Mailman-Version: 2.1.18
Precedence: list
List-Id: SVN commit messages for only the 9-stable src tree
 <svn-src-stable-9.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/svn-src-stable-9>, 
 <mailto:svn-src-stable-9-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-stable-9/>
List-Post: <mailto:svn-src-stable-9@freebsd.org>
List-Help: <mailto:svn-src-stable-9-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-stable-9>, 
 <mailto:svn-src-stable-9-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 24 Jul 2014 11:17:27 -0000

Author: kib
Date: Thu Jul 24 11:17:26 2014
New Revision: 269057
URL: http://svnweb.freebsd.org/changeset/base/269057

Log:
  MFC r268384:
  When the lock was stolen from us, retry the whole lock sequence in kernel,
  instead of returning EINTR.

Modified:
  stable/9/sys/kern/kern_lockf.c
Directory Properties:
  stable/9/sys/   (props changed)

Modified: stable/9/sys/kern/kern_lockf.c
==============================================================================
--- stable/9/sys/kern/kern_lockf.c	Thu Jul 24 10:45:52 2014	(r269056)
+++ stable/9/sys/kern/kern_lockf.c	Thu Jul 24 11:17:26 2014	(r269057)
@@ -469,6 +469,9 @@ lf_advlockasync(struct vop_advlockasync_
 			return (EOVERFLOW);
 		end = start + oadd;
 	}
+
+retry_setlock:
+
 	/*
 	 * Avoid the common case of unlocking when inode has no locks.
 	 */
@@ -744,6 +747,11 @@ lf_advlockasync(struct vop_advlockasync_
 		sx_destroy(&freestate->ls_lock);
 		free(freestate, M_LOCKF);
 	}
+
+	if (error == EDOOFUS) {
+		KASSERT(ap->a_op == F_SETLK, ("EDOOFUS"));
+		goto retry_setlock;
+	}
 	return (error);
 }
 
@@ -1459,7 +1467,7 @@ lf_setlock(struct lockf *state, struct l
 		lock->lf_refs++;
 		error = sx_sleep(lock, &state->ls_lock, priority, lockstr, 0);
 		if (lf_free_lock(lock)) {
-			error = EINTR;
+			error = EDOOFUS;
 			goto out;
 		}