2 * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #ifndef _OPENSOLARIS_SYS_VNODE_H_
30 #define _OPENSOLARIS_SYS_VNODE_H_
32 #include_next <sys/vnode.h>
33 #include <sys/mount.h>
35 #include <sys/fcntl.h>
36 #include <sys/namei.h>
38 #include <sys/filedesc.h>
39 #include <sys/syscallsubr.h>
41 typedef struct vnode vnode_t;
42 typedef struct vattr vattr_t;
43 typedef void caller_context_t;
45 typedef struct vop_vector vnodeops_t;
46 #define vop_fid vop_vptofh
47 #define vop_fid_args vop_vptofh_args
50 #define v_count v_usecount
53 vn_is_readonly(vnode_t *vp)
55 return (vp->v_mount->mnt_flag & MNT_RDONLY);
57 #define vn_vfswlock(vp) (0)
58 #define vn_vfsunlock(vp) do { } while (0)
59 #define vn_ismntpt(vp) ((vp)->v_type == VDIR && (vp)->v_mountedhere != NULL)
60 #define vn_mountedvfs(vp) ((vp)->v_mountedhere)
61 #define vn_has_cached_data(vp) ((vp)->v_object != NULL && (vp)->v_object->resident_page_count > 0)
63 #define VN_HOLD(v) vref(v)
64 #define VN_RELE(v) vrele(v)
65 #define VN_URELE(v) vput(v)
67 #define VOP_REALVP(vp, vpp) (*(vpp) = (vp), 0)
69 #define vnevent_remove(vp) do { } while (0)
70 #define vnevent_rmdir(vp) do { } while (0)
71 #define vnevent_rename_src(vp) do { } while (0)
72 #define vnevent_rename_dest(vp) do { } while (0)
75 #define IS_DEVVP(vp) \
76 ((vp)->v_type == VCHR || (vp)->v_type == VBLK || (vp)->v_type == VFIFO)
78 #define MODEMASK ALLPERMS
80 #define specvp(vp, rdev, type, cr) (VN_HOLD(vp), (vp))
81 #define MANDMODE(mode) (0)
82 #define chklock(vp, op, offset, size, mode, ct) (0)
83 #define cleanlocks(vp, pid, foo) do { } while (0)
84 #define cleanshares(vp, pid) do { } while (0)
87 * We will use va_spare is place of Solaris' va_mask.
88 * This field is initialized in zfs_setattr().
90 #define va_mask va_spare
91 /* TODO: va_fileid is shorter than va_nodeid !!! */
92 #define va_nodeid va_fileid
93 /* TODO: This field needs conversion! */
94 #define va_nblocks va_bytes
95 #define va_blksize va_blocksize
98 #define MAXOFFSET_T OFF_MAX
101 #define AT_TYPE 0x0001
102 #define AT_MODE 0x0002
103 #define AT_UID 0x0004
104 #define AT_GID 0x0008
105 #define AT_FSID 0x0010
106 #define AT_NODEID 0x0020
107 #define AT_NLINK 0x0040
108 #define AT_SIZE 0x0080
109 #define AT_ATIME 0x0100
110 #define AT_MTIME 0x0200
111 #define AT_CTIME 0x0400
112 #define AT_RDEV 0x0800
113 #define AT_BLKSIZE 0x1000
114 #define AT_NBLOCKS 0x2000
115 #define AT_SEQ 0x4000
116 #define AT_NOSET (AT_NLINK|AT_RDEV|AT_FSID|AT_NODEID|AT_TYPE|\
117 AT_BLKSIZE|AT_NBLOCKS|AT_SEQ)
119 #define ACCESSED (AT_ATIME)
120 #define STATE_CHANGED (AT_CTIME)
121 #define CONTENT_MODIFIED (AT_MTIME | AT_CTIME)
124 vattr_init_mask(vattr_t *vap)
129 if (vap->va_type != VNON)
130 vap->va_mask |= AT_TYPE;
131 if (vap->va_uid != (uid_t)VNOVAL)
132 vap->va_mask |= AT_UID;
133 if (vap->va_gid != (gid_t)VNOVAL)
134 vap->va_mask |= AT_GID;
135 if (vap->va_size != (u_quad_t)VNOVAL)
136 vap->va_mask |= AT_SIZE;
137 if (vap->va_atime.tv_sec != VNOVAL)
138 vap->va_mask |= AT_ATIME;
139 if (vap->va_mtime.tv_sec != VNOVAL)
140 vap->va_mask |= AT_MTIME;
141 if (vap->va_mode != (u_short)VNOVAL)
142 vap->va_mask |= AT_MODE;
145 #define FCREAT O_CREAT
146 #define FTRUNC O_TRUNC
147 #define FDSYNC FFSYNC
148 #define FRSYNC FFSYNC
152 enum create { CRCREAT };
155 zfs_vn_open(char *pnamep, enum uio_seg seg, int filemode, int createmode,
156 vnode_t **vpp, enum create crwhy, mode_t umask)
158 struct thread *td = curthread;
162 ASSERT(seg == UIO_SYSSPACE);
163 ASSERT(filemode == (FWRITE | FCREAT | FTRUNC | FOFFMAX));
164 ASSERT(crwhy == CRCREAT);
167 if (td->td_proc->p_fd->fd_rdir == NULL)
168 td->td_proc->p_fd->fd_rdir = rootvnode;
169 if (td->td_proc->p_fd->fd_cdir == NULL)
170 td->td_proc->p_fd->fd_cdir = rootvnode;
172 NDINIT(&nd, LOOKUP, NOFOLLOW, UIO_SYSSPACE, pnamep, td);
173 error = vn_open_cred(&nd, &filemode, createmode, td->td_ucred, NULL);
174 NDFREE(&nd, NDF_ONLY_PNBUF);
176 /* We just unlock so we hold a reference. */
178 VOP_UNLOCK(nd.ni_vp, 0);
183 #define vn_open(pnamep, seg, filemode, createmode, vpp, crwhy, umask) \
184 zfs_vn_open((pnamep), (seg), (filemode), (createmode), (vpp), (crwhy), (umask))
186 #define RLIM64_INFINITY 0
188 zfs_vn_rdwr(enum uio_rw rw, vnode_t *vp, caddr_t base, ssize_t len,
189 offset_t offset, enum uio_seg seg, int ioflag, int ulimit, cred_t *cr,
192 struct thread *td = curthread;
193 int error, vfslocked, resid;
195 ASSERT(rw == UIO_WRITE);
197 ASSERT(ulimit == RLIM64_INFINITY);
199 ioflag = IO_APPEND | IO_UNIT;
201 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
202 VOP_LEASE(vp, td, td->td_ucred, LEASE_WRITE);
203 error = vn_rdwr(rw, vp, base, len, offset, seg, ioflag, cr, NOCRED,
205 VFS_UNLOCK_GIANT(vfslocked);
207 *residp = (ssize_t)resid;
210 #define vn_rdwr(rw, vp, base, len, offset, seg, ioflag, ulimit, cr, residp) \
211 zfs_vn_rdwr((rw), (vp), (base), (len), (offset), (seg), (ioflag), (ulimit), (cr), (residp))
214 zfs_vop_fsync(vnode_t *vp, int flag, cred_t *cr)
217 int error, vfslocked;
219 ASSERT(flag == FSYNC);
221 vfslocked = VFS_LOCK_GIANT(vp->v_mount);
222 if ((error = vn_start_write(vp, &mp, V_WAIT | PCATCH)) != 0)
224 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
225 error = VOP_FSYNC(vp, MNT_WAIT, curthread);
227 vn_finished_write(mp);
229 VFS_UNLOCK_GIANT(vfslocked);
232 #define VOP_FSYNC(vp, flag, cr) zfs_vop_fsync((vp), (flag), (cr))
235 zfs_vop_close(vnode_t *vp, int flag, int count, offset_t offset, cred_t *cr)
238 ASSERT(flag == (FWRITE | FCREAT | FTRUNC | FOFFMAX));
242 return (vn_close(vp, flag, cr, curthread));
244 #define VOP_CLOSE(vp, oflags, count, offset, cr) \
245 zfs_vop_close((vp), (oflags), (count), (offset), (cr))
248 vn_rename(char *from, char *to, enum uio_seg seg)
251 ASSERT(seg == UIO_SYSSPACE);
253 return (kern_rename(curthread, from, to, seg));
258 vn_remove(char *fnamep, enum uio_seg seg, enum rm dirflag)
261 ASSERT(seg == UIO_SYSSPACE);
262 ASSERT(dirflag == RMFILE);
264 return (kern_unlink(curthread, fnamep, seg));
267 #endif /* _OPENSOLARIS_SYS_VNODE_H_ */