2 * Copyright (c) 2009 The DragonFly Project. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Matthew Dillon <dillon@backplane.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * Implement mp->mnt_ops function call wrappers.
37 * These wrappers are responsible for handling all MPSAFE issues related to
41 #include <sys/param.h>
42 #include <sys/systm.h>
45 #include <sys/dirent.h>
46 #include <sys/domain.h>
47 #include <sys/eventhandler.h>
48 #include <sys/fcntl.h>
49 #include <sys/kernel.h>
50 #include <sys/kthread.h>
51 #include <sys/malloc.h>
53 #include <sys/mount.h>
55 #include <sys/namei.h>
56 #include <sys/reboot.h>
57 #include <sys/socket.h>
59 #include <sys/sysctl.h>
60 #include <sys/syslog.h>
61 #include <sys/vmmeter.h>
62 #include <sys/vnode.h>
63 #include <sys/vfsops.h>
64 #include <sys/sysmsg.h>
66 #include <machine/limits.h>
69 #include <vm/vm_object.h>
70 #include <vm/vm_extern.h>
71 #include <vm/vm_kern.h>
73 #include <vm/vm_map.h>
74 #include <vm/vm_page.h>
75 #include <vm/vm_pager.h>
76 #include <vm/vnode_pager.h>
77 #include <vm/vm_zone.h>
80 #include <sys/thread2.h>
81 #include <sys/mplock2.h>
87 vfs_mount(struct mount *mp, char *path, caddr_t data, struct ucred *cred)
93 error = (mp->mnt_op->vfs_mount)(mp, path, data, cred);
102 vfs_start(struct mount *mp, int flags)
108 error = (mp->mnt_op->vfs_start)(mp, flags);
117 vfs_unmount(struct mount *mp, int mntflags)
123 error = (mp->mnt_op->vfs_unmount)(mp, mntflags);
132 vfs_root(struct mount *mp, struct vnode **vpp)
138 error = (mp->mnt_op->vfs_root)(mp, vpp);
147 vfs_quotactl(struct mount *mp, int cmds, uid_t uid, caddr_t arg,
154 error = (mp->mnt_op->vfs_quotactl)(mp, cmds, uid, arg, cred);
163 vfs_statfs(struct mount *mp, struct statfs *sbp, struct ucred *cred)
169 error = (mp->mnt_op->vfs_statfs)(mp, sbp, cred);
175 vfs_statvfs(struct mount *mp, struct statvfs *sbp, struct ucred *cred)
181 error = (mp->mnt_op->vfs_statvfs)(mp, sbp, cred);
190 vfs_sync(struct mount *mp, int waitfor)
196 error = (mp->mnt_op->vfs_sync)(mp, waitfor);
205 vfs_vget(struct mount *mp, struct vnode *dvp, ino_t ino, struct vnode **vpp)
211 error = (mp->mnt_op->vfs_vget)(mp, dvp, ino, vpp);
220 vfs_fhtovp(struct mount *mp, struct vnode *rootvp,
221 struct fid *fhp, struct vnode **vpp)
227 error = (mp->mnt_op->vfs_fhtovp)(mp, rootvp, fhp, vpp);
236 vfs_checkexp(struct mount *mp, struct sockaddr *nam,
237 int *extflagsp, struct ucred **credanonp)
243 error = (mp->mnt_op->vfs_checkexp)(mp, nam, extflagsp, credanonp);
252 vfs_vptofh(struct vnode *vp, struct fid *fhp)
257 VFS_MPLOCK1(vp->v_mount);
258 error = (vp->v_mount->mnt_op->vfs_vptofh)(vp, fhp);
259 VFS_MPUNLOCK(vp->v_mount);
267 vfs_init(struct vfsconf *vfc)
272 error = (vfc->vfc_vfsops->vfs_init)(vfc);
282 vfs_uninit(struct vfsconf *vfc, struct vfsconf *vfsp)
287 error = (vfc->vfc_vfsops->vfs_uninit)(vfsp);
297 vfs_extattrctl(struct mount *mp, int cmd, struct vnode *vp,
298 int attrnamespace, const char *attrname,
305 error = (mp->mnt_op->vfs_extattrctl)(mp, cmd, vp,
306 attrnamespace, attrname,