1 /* $NetBSD: t_unmount.c,v 1.4 2024/10/02 17:16:32 bad Exp $ */ 2 3 /*- 4 * Copyright (c) 2024 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND 17 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 18 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 23 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 25 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 26 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 #include <sys/cdefs.h> 30 __COPYRIGHT("@(#) Copyright (c) 2024\ 31 The NetBSD Foundation, inc. All rights reserved."); 32 __RCSID("$NetBSD: t_unmount.c,v 1.4 2024/10/02 17:16:32 bad Exp $"); 33 34 #include <sys/types.h> 35 #include <sys/mount.h> 36 #include <sys/vnode.h> 37 38 #include <rump/rump.h> 39 #include <rump/rumpvnode_if.h> 40 #include <rump/rump_syscalls.h> 41 42 #include <fs/tmpfs/tmpfs_args.h> 43 44 #include <atf-c.h> 45 #include <errno.h> 46 #include <stdio.h> 47 48 #include "h_macros.h" 49 50 ATF_TC(async); 51 ATF_TC_HEAD(async, tc) 52 { 53 atf_tc_set_md_var(tc, 54 "descr", "failed unmount of async fs should stay async"); 55 } 56 57 #define MP "/mnt" 58 59 ATF_TC_BODY(async, tc) 60 { 61 struct tmpfs_args args; 62 struct vnode *vp; 63 extern struct vnode *rumpns_rootvnode; 64 65 RZ(rump_init()); 66 67 memset(&args, 0, sizeof(args)); 68 args.ta_version = TMPFS_ARGS_VERSION; 69 args.ta_root_mode = 0777; 70 71 /* create mount point and mount a tmpfs on it */ 72 RL(rump_sys_mkdir(MP, 0777)); 73 RL(rump_sys_mount(MOUNT_TMPFS, MP, MNT_ASYNC, &args, sizeof(args))); 74 75 /* make sure the tmpfs is busy */ 76 RL(rump_sys_chdir(MP)); 77 78 /* need a stable lwp for componentname */ 79 RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG)); 80 81 /* get vnode of MP, unlocked */ 82 RZ(rump_pub_namei(RUMP_NAMEI_LOOKUP, 0, MP, NULL, &vp, NULL)); 83 84 /* make sure we didn't just get the root vnode */ 85 ATF_REQUIRE_MSG((rumpns_rootvnode != vp), "drat! got the root vnode"); 86 87 printf("mnt_iflag & IMNT_ONWORKLIST == %d\n", 88 (vp->v_mount->mnt_iflag & IMNT_ONWORKLIST) != 0); 89 90 /* can't unmount a busy file system */ 91 ATF_REQUIRE_ERRNO(EBUSY, rump_sys_unmount(MP, 0) == -1); 92 93 printf("mnt_iflag & IMNT_ONWORKLIST == %d\n", 94 (vp->v_mount->mnt_iflag & IMNT_ONWORKLIST) != 0); 95 96 97 ATF_REQUIRE_MSG(((vp->v_mount->mnt_iflag & IMNT_ONWORKLIST) == 0), 98 "mount point on syncer work list"); 99 } 100 101 ATF_TP_ADD_TCS(tp) 102 { 103 ATF_TP_ADD_TC(tp, async); 104 105 return atf_no_error(); 106 } 107