From owner-svn-src-head@freebsd.org Tue Sep 12 06:04:51 2017 Return-Path: Delivered-To: svn-src-head@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 C86C0E1AC65; Tue, 12 Sep 2017 06:04:51 +0000 (UTC) (envelope-from avg@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 965DB3A48; Tue, 12 Sep 2017 06:04:51 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id v8C64o3Q052643; Tue, 12 Sep 2017 06:04:50 GMT (envelope-from avg@FreeBSD.org) Received: (from avg@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id v8C64opD052642; Tue, 12 Sep 2017 06:04:50 GMT (envelope-from avg@FreeBSD.org) Message-Id: <201709120604.v8C64opD052642@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: avg set sender to avg@FreeBSD.org using -f From: Andriy Gapon Date: Tue, 12 Sep 2017 06:04:50 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r323481 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs X-SVN-Group: head X-SVN-Commit-Author: avg X-SVN-Commit-Paths: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs X-SVN-Commit-Revision: 323481 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Sep 2017 06:04:51 -0000 Author: avg Date: Tue Sep 12 06:04:50 2017 New Revision: 323481 URL: https://svnweb.freebsd.org/changeset/base/323481 Log: zfsvfs_hold: assert that the busied filesystem can not be unmounted This is a FreeBSD specific feature. MFC after: 3 weeks Sponsored by: Panzura Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c ============================================================================== --- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c Tue Sep 12 06:04:01 2017 (r323480) +++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c Tue Sep 12 06:04:50 2017 (r323481) @@ -1488,6 +1488,7 @@ zfsvfs_hold(const char *name, void *tag, zfsvfs_t **zf if (error == 0) { rrm_enter(&(*zfvp)->z_teardown_lock, (writer) ? RW_WRITER : RW_READER, tag); +#ifdef illumos if ((*zfvp)->z_unmounted) { /* * XXX we could probably try again, since the unmounting @@ -1497,6 +1498,13 @@ zfsvfs_hold(const char *name, void *tag, zfsvfs_t **zf rrm_exit(&(*zfvp)->z_teardown_lock, tag); return (SET_ERROR(EBUSY)); } +#else + /* + * vfs_busy() ensures that the filesystem is not and + * can not be unmounted. + */ + ASSERT(!(*zfvp)->z_unmounted); +#endif } return (error); }