2 * Copyright (c) 2004,2009 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 vnode ops wrappers. All vnode ops are wrapped through
38 * These wrappers are responsible for hanlding all MPSAFE issues related
39 * to a vnode operation.
42 #include <sys/param.h>
43 #include <sys/systm.h>
46 #include <sys/dirent.h>
47 #include <sys/domain.h>
48 #include <sys/eventhandler.h>
49 #include <sys/fcntl.h>
50 #include <sys/kernel.h>
51 #include <sys/kthread.h>
52 #include <sys/malloc.h>
54 #include <sys/mount.h>
56 #include <sys/namei.h>
57 #include <sys/reboot.h>
58 #include <sys/socket.h>
60 #include <sys/sysctl.h>
61 #include <sys/syslog.h>
62 #include <sys/vmmeter.h>
63 #include <sys/vnode.h>
64 #include <sys/vfsops.h>
65 #include <sys/sysmsg.h>
67 #include <machine/limits.h>
70 #include <vm/vm_object.h>
71 #include <vm/vm_extern.h>
72 #include <vm/vm_kern.h>
74 #include <vm/vm_map.h>
75 #include <vm/vm_page.h>
76 #include <vm/vm_pager.h>
77 #include <vm/vnode_pager.h>
78 #include <vm/vm_zone.h>
81 #include <sys/thread2.h>
82 #include <sys/mplock2.h>
84 #define VDESCNAME(name) __CONCAT(__CONCAT(vop_,name),_desc)
86 #define VNODEOP_DESC_INIT(name) \
87 struct syslink_desc VDESCNAME(name) = { \
88 __offsetof(struct vop_ops, __CONCAT(vop_, name)), \
91 VNODEOP_DESC_INIT(default);
92 VNODEOP_DESC_INIT(old_lookup);
93 VNODEOP_DESC_INIT(old_create);
94 VNODEOP_DESC_INIT(old_whiteout);
95 VNODEOP_DESC_INIT(old_mknod);
96 VNODEOP_DESC_INIT(open);
97 VNODEOP_DESC_INIT(close);
98 VNODEOP_DESC_INIT(access);
99 VNODEOP_DESC_INIT(getattr);
100 VNODEOP_DESC_INIT(setattr);
101 VNODEOP_DESC_INIT(read);
102 VNODEOP_DESC_INIT(write);
103 VNODEOP_DESC_INIT(ioctl);
104 VNODEOP_DESC_INIT(poll);
105 VNODEOP_DESC_INIT(kqfilter);
106 VNODEOP_DESC_INIT(mmap);
107 VNODEOP_DESC_INIT(fsync);
108 VNODEOP_DESC_INIT(old_remove);
109 VNODEOP_DESC_INIT(old_link);
110 VNODEOP_DESC_INIT(old_rename);
112 VNODEOP_DESC_INIT(old_mkdir);
113 VNODEOP_DESC_INIT(old_rmdir);
114 VNODEOP_DESC_INIT(old_symlink);
115 VNODEOP_DESC_INIT(readdir);
116 VNODEOP_DESC_INIT(readlink);
117 VNODEOP_DESC_INIT(inactive);
118 VNODEOP_DESC_INIT(reclaim);
119 VNODEOP_DESC_INIT(bmap);
120 VNODEOP_DESC_INIT(strategy);
121 VNODEOP_DESC_INIT(print);
122 VNODEOP_DESC_INIT(pathconf);
123 VNODEOP_DESC_INIT(advlock);
124 VNODEOP_DESC_INIT(balloc);
125 VNODEOP_DESC_INIT(reallocblks);
126 VNODEOP_DESC_INIT(getpages);
127 VNODEOP_DESC_INIT(putpages);
128 VNODEOP_DESC_INIT(freeblks);
129 VNODEOP_DESC_INIT(getacl);
130 VNODEOP_DESC_INIT(setacl);
131 VNODEOP_DESC_INIT(aclcheck);
132 VNODEOP_DESC_INIT(getextattr);
133 VNODEOP_DESC_INIT(setextattr);
134 VNODEOP_DESC_INIT(mountctl);
135 VNODEOP_DESC_INIT(markatime);
137 VNODEOP_DESC_INIT(nresolve);
138 VNODEOP_DESC_INIT(nlookupdotdot);
139 VNODEOP_DESC_INIT(ncreate);
140 VNODEOP_DESC_INIT(nmkdir);
141 VNODEOP_DESC_INIT(nmknod);
142 VNODEOP_DESC_INIT(nlink);
143 VNODEOP_DESC_INIT(nsymlink);
144 VNODEOP_DESC_INIT(nwhiteout);
145 VNODEOP_DESC_INIT(nremove);
146 VNODEOP_DESC_INIT(nrmdir);
147 VNODEOP_DESC_INIT(nrename);
149 #define DO_OPS(ops, error, ap, vop_field) \
150 error = ops->vop_field(ap);
152 /************************************************************************
153 * PRIMARY HIGH LEVEL VNODE OPERATIONS CALLS *
154 ************************************************************************
156 * These procedures are called directly from the kernel and/or fileops
157 * code to perform file/device operations on the system.
159 * NOTE: The old namespace api functions such as vop_rename() are no
160 * longer available for general use and have been renamed to
161 * vop_old_*(). Only the code in vfs_default.c is allowed to call
164 * NOTE: The VFS_MPLOCK*() macros handle mounts which do not set
165 * MNTK_MPSAFE or MNTK_xx_MPSAFE.
171 vop_old_lookup(struct vop_ops *ops, struct vnode *dvp,
172 struct vnode **vpp, struct componentname *cnp)
174 struct vop_old_lookup_args ap;
178 ap.a_head.a_desc = &vop_old_lookup_desc;
179 ap.a_head.a_ops = ops;
183 VFS_MPLOCK1(dvp->v_mount);
184 DO_OPS(ops, error, &ap, vop_old_lookup);
185 VFS_MPUNLOCK(dvp->v_mount);
193 vop_old_create(struct vop_ops *ops, struct vnode *dvp,
194 struct vnode **vpp, struct componentname *cnp, struct vattr *vap)
196 struct vop_old_create_args ap;
200 ap.a_head.a_desc = &vop_old_create_desc;
201 ap.a_head.a_ops = ops;
207 VFS_MPLOCK1(dvp->v_mount);
208 DO_OPS(ops, error, &ap, vop_old_create);
209 VFS_MPUNLOCK(dvp->v_mount);
217 vop_old_whiteout(struct vop_ops *ops, struct vnode *dvp,
218 struct componentname *cnp, int flags)
220 struct vop_old_whiteout_args ap;
224 ap.a_head.a_desc = &vop_old_whiteout_desc;
225 ap.a_head.a_ops = ops;
230 VFS_MPLOCK1(dvp->v_mount);
231 DO_OPS(ops, error, &ap, vop_old_whiteout);
232 VFS_MPUNLOCK(dvp->v_mount);
240 vop_old_mknod(struct vop_ops *ops, struct vnode *dvp,
241 struct vnode **vpp, struct componentname *cnp, struct vattr *vap)
243 struct vop_old_mknod_args ap;
247 ap.a_head.a_desc = &vop_old_mknod_desc;
248 ap.a_head.a_ops = ops;
254 VFS_MPLOCK1(dvp->v_mount);
255 DO_OPS(ops, error, &ap, vop_old_mknod);
256 VFS_MPUNLOCK(dvp->v_mount);
261 * NOTE: VAGE is always cleared when calling VOP_OPEN().
264 vop_open(struct vop_ops *ops, struct vnode *vp, int mode, struct ucred *cred,
267 struct vop_open_args ap;
272 * Decrement 3-2-1-0. Does not decrement beyond 0
274 if (vp->v_flag & VAGE0) {
275 vclrflags(vp, VAGE0);
276 } else if (vp->v_flag & VAGE1) {
277 vclrflags(vp, VAGE1);
278 vsetflags(vp, VAGE0);
281 ap.a_head.a_desc = &vop_open_desc;
282 ap.a_head.a_ops = ops;
288 VFS_MPLOCK1(vp->v_mount);
289 DO_OPS(ops, error, &ap, vop_open);
290 VFS_MPUNLOCK(vp->v_mount);
298 vop_close(struct vop_ops *ops, struct vnode *vp, int fflag)
300 struct vop_close_args ap;
304 ap.a_head.a_desc = &vop_close_desc;
305 ap.a_head.a_ops = ops;
309 VFS_MPLOCK1(vp->v_mount);
310 DO_OPS(ops, error, &ap, vop_close);
311 VFS_MPUNLOCK(vp->v_mount);
319 vop_access(struct vop_ops *ops, struct vnode *vp, int mode, int flags,
322 struct vop_access_args ap;
326 ap.a_head.a_desc = &vop_access_desc;
327 ap.a_head.a_ops = ops;
333 VFS_MPLOCK1(vp->v_mount);
334 DO_OPS(ops, error, &ap, vop_access);
335 VFS_MPUNLOCK(vp->v_mount);
343 vop_getattr(struct vop_ops *ops, struct vnode *vp, struct vattr *vap)
345 struct vop_getattr_args ap;
349 ap.a_head.a_desc = &vop_getattr_desc;
350 ap.a_head.a_ops = ops;
354 VFS_MPLOCK_FLAG(vp->v_mount, MNTK_GA_MPSAFE);
355 DO_OPS(ops, error, &ap, vop_getattr);
356 VFS_MPUNLOCK(vp->v_mount);
365 vop_setattr(struct vop_ops *ops, struct vnode *vp, struct vattr *vap,
368 struct vop_setattr_args ap;
372 ap.a_head.a_desc = &vop_setattr_desc;
373 ap.a_head.a_ops = ops;
378 VFS_MPLOCK1(vp->v_mount);
379 DO_OPS(ops, error, &ap, vop_setattr);
380 VFS_MPUNLOCK(vp->v_mount);
388 vop_read(struct vop_ops *ops, struct vnode *vp, struct uio *uio, int ioflag,
391 struct vop_read_args ap;
395 ap.a_head.a_desc = &vop_read_desc;
396 ap.a_head.a_ops = ops;
399 ap.a_ioflag = ioflag;
402 VFS_MPLOCK_FLAG(vp->v_mount, MNTK_RD_MPSAFE);
403 DO_OPS(ops, error, &ap, vop_read);
404 VFS_MPUNLOCK(vp->v_mount);
412 vop_write(struct vop_ops *ops, struct vnode *vp, struct uio *uio, int ioflag,
415 struct vop_write_args ap;
417 int error, do_accounting = 0;
419 uint64_t size_before=0, size_after=0;
420 struct mount *mountp = vp->v_mount;
422 ap.a_head.a_desc = &vop_write_desc;
423 ap.a_head.a_ops = ops;
426 ap.a_ioflag = ioflag;
429 /* is this a regular vnode ? */
430 if (vp->v_type == VREG) {
432 if ((error = VOP_GETATTR(vp, &va)) != 0)
434 size_before = va.va_size;
437 VFS_MPLOCK_FLAG(vp->v_mount, MNTK_WR_MPSAFE);
438 DO_OPS(ops, error, &ap, vop_write);
439 if ((error == 0) && do_accounting) {
440 size_after = vp->v_filesize;
441 VFS_ACCOUNT(mountp, va.va_uid, va.va_gid, size_after - size_before);
443 VFS_MPUNLOCK(vp->v_mount);
451 vop_ioctl(struct vop_ops *ops, struct vnode *vp, u_long command, caddr_t data,
452 int fflag, struct ucred *cred, struct sysmsg *msg)
454 struct vop_ioctl_args ap;
458 ap.a_head.a_desc = &vop_ioctl_desc;
459 ap.a_head.a_ops = ops;
461 ap.a_command = command;
467 VFS_MPLOCK1(vp->v_mount);
468 DO_OPS(ops, error, &ap, vop_ioctl);
469 VFS_MPUNLOCK(vp->v_mount);
477 vop_poll(struct vop_ops *ops, struct vnode *vp, int events, struct ucred *cred)
479 struct vop_poll_args ap;
483 ap.a_head.a_desc = &vop_poll_desc;
484 ap.a_head.a_ops = ops;
486 ap.a_events = events;
489 VFS_MPLOCK1(vp->v_mount);
490 DO_OPS(ops, error, &ap, vop_poll);
491 VFS_MPUNLOCK(vp->v_mount);
499 vop_kqfilter(struct vop_ops *ops, struct vnode *vp, struct knote *kn)
501 struct vop_kqfilter_args ap;
505 ap.a_head.a_desc = &vop_kqfilter_desc;
506 ap.a_head.a_ops = ops;
510 VFS_MPLOCK1(vp->v_mount);
511 DO_OPS(ops, error, &ap, vop_kqfilter);
512 VFS_MPUNLOCK(vp->v_mount);
520 vop_mmap(struct vop_ops *ops, struct vnode *vp, int fflags, struct ucred *cred)
522 struct vop_mmap_args ap;
526 ap.a_head.a_desc = &vop_mmap_desc;
527 ap.a_head.a_ops = ops;
529 ap.a_fflags = fflags;
532 VFS_MPLOCK1(vp->v_mount);
533 DO_OPS(ops, error, &ap, vop_mmap);
534 VFS_MPUNLOCK(vp->v_mount);
542 vop_fsync(struct vop_ops *ops, struct vnode *vp, int waitfor, int flags)
544 struct vop_fsync_args ap;
548 ap.a_head.a_desc = &vop_fsync_desc;
549 ap.a_head.a_ops = ops;
551 ap.a_waitfor = waitfor;
554 VFS_MPLOCK1(vp->v_mount);
555 DO_OPS(ops, error, &ap, vop_fsync);
556 VFS_MPUNLOCK(vp->v_mount);
564 vop_old_remove(struct vop_ops *ops, struct vnode *dvp,
565 struct vnode *vp, struct componentname *cnp)
567 struct vop_old_remove_args ap;
571 ap.a_head.a_desc = &vop_old_remove_desc;
572 ap.a_head.a_ops = ops;
577 VFS_MPLOCK1(dvp->v_mount);
578 DO_OPS(ops, error, &ap, vop_old_remove);
579 VFS_MPUNLOCK(dvp->v_mount);
587 vop_old_link(struct vop_ops *ops, struct vnode *tdvp,
588 struct vnode *vp, struct componentname *cnp)
590 struct vop_old_link_args ap;
594 ap.a_head.a_desc = &vop_old_link_desc;
595 ap.a_head.a_ops = ops;
600 VFS_MPLOCK1(tdvp->v_mount);
601 DO_OPS(ops, error, &ap, vop_old_link);
602 VFS_MPUNLOCK(tdvp->v_mount);
610 vop_old_rename(struct vop_ops *ops,
611 struct vnode *fdvp, struct vnode *fvp, struct componentname *fcnp,
612 struct vnode *tdvp, struct vnode *tvp, struct componentname *tcnp)
614 struct vop_old_rename_args ap;
618 ap.a_head.a_desc = &vop_old_rename_desc;
619 ap.a_head.a_ops = ops;
627 VFS_MPLOCK1(tdvp->v_mount);
628 DO_OPS(ops, error, &ap, vop_old_rename);
629 VFS_MPUNLOCK(tdvp->v_mount);
637 vop_old_mkdir(struct vop_ops *ops, struct vnode *dvp,
638 struct vnode **vpp, struct componentname *cnp, struct vattr *vap)
640 struct vop_old_mkdir_args ap;
644 ap.a_head.a_desc = &vop_old_mkdir_desc;
645 ap.a_head.a_ops = ops;
651 VFS_MPLOCK1(dvp->v_mount);
652 DO_OPS(ops, error, &ap, vop_old_mkdir);
653 VFS_MPUNLOCK(dvp->v_mount);
661 vop_old_rmdir(struct vop_ops *ops, struct vnode *dvp,
662 struct vnode *vp, struct componentname *cnp)
664 struct vop_old_rmdir_args ap;
668 ap.a_head.a_desc = &vop_old_rmdir_desc;
669 ap.a_head.a_ops = ops;
674 VFS_MPLOCK1(dvp->v_mount);
675 DO_OPS(ops, error, &ap, vop_old_rmdir);
676 VFS_MPUNLOCK(dvp->v_mount);
684 vop_old_symlink(struct vop_ops *ops, struct vnode *dvp,
685 struct vnode **vpp, struct componentname *cnp,
686 struct vattr *vap, char *target)
688 struct vop_old_symlink_args ap;
692 ap.a_head.a_desc = &vop_old_symlink_desc;
693 ap.a_head.a_ops = ops;
698 ap.a_target = target;
700 VFS_MPLOCK1(dvp->v_mount);
701 DO_OPS(ops, error, &ap, vop_old_symlink);
702 VFS_MPUNLOCK(dvp->v_mount);
710 vop_readdir(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
711 struct ucred *cred, int *eofflag, int *ncookies, off_t **cookies)
713 struct vop_readdir_args ap;
717 ap.a_head.a_desc = &vop_readdir_desc;
718 ap.a_head.a_ops = ops;
722 ap.a_eofflag = eofflag;
723 ap.a_ncookies = ncookies;
724 ap.a_cookies = cookies;
726 VFS_MPLOCK1(vp->v_mount);
727 DO_OPS(ops, error, &ap, vop_readdir);
728 VFS_MPUNLOCK(vp->v_mount);
736 vop_readlink(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
739 struct vop_readlink_args ap;
743 ap.a_head.a_desc = &vop_readlink_desc;
744 ap.a_head.a_ops = ops;
749 VFS_MPLOCK1(vp->v_mount);
750 DO_OPS(ops, error, &ap, vop_readlink);
751 VFS_MPUNLOCK(vp->v_mount);
759 vop_inactive(struct vop_ops *ops, struct vnode *vp)
761 struct vop_inactive_args ap;
766 ap.a_head.a_desc = &vop_inactive_desc;
767 ap.a_head.a_ops = ops;
771 * WARNING! Deactivation of the vnode can cause it to be recycled,
772 * clearing vp->v_mount.
775 VFS_MPLOCK_FLAG(mp, MNTK_IN_MPSAFE);
776 DO_OPS(ops, error, &ap, vop_inactive);
785 vop_reclaim(struct vop_ops *ops, struct vnode *vp)
787 struct vop_reclaim_args ap;
792 ap.a_head.a_desc = &vop_reclaim_desc;
793 ap.a_head.a_ops = ops;
797 * WARNING! Reclamation of the vnode will clear vp->v_mount.
801 DO_OPS(ops, error, &ap, vop_reclaim);
810 vop_bmap(struct vop_ops *ops, struct vnode *vp, off_t loffset,
811 off_t *doffsetp, int *runp, int *runb, buf_cmd_t cmd)
813 struct vop_bmap_args ap;
817 ap.a_head.a_desc = &vop_bmap_desc;
818 ap.a_head.a_ops = ops;
820 ap.a_loffset = loffset;
821 ap.a_doffsetp = doffsetp;
826 VFS_MPLOCK1(vp->v_mount);
827 DO_OPS(ops, error, &ap, vop_bmap);
828 VFS_MPUNLOCK(vp->v_mount);
836 vop_strategy(struct vop_ops *ops, struct vnode *vp, struct bio *bio)
838 struct vop_strategy_args ap;
842 ap.a_head.a_desc = &vop_strategy_desc;
843 ap.a_head.a_ops = ops;
848 VFS_MPLOCK_FLAG(vp->v_mount, MNTK_SG_MPSAFE);
849 DO_OPS(ops, error, &ap, vop_strategy);
850 VFS_MPUNLOCK(vp->v_mount);
852 /* ugly hack for swap */
854 DO_OPS(ops, error, &ap, vop_strategy);
864 vop_print(struct vop_ops *ops, struct vnode *vp)
866 struct vop_print_args ap;
870 ap.a_head.a_desc = &vop_print_desc;
871 ap.a_head.a_ops = ops;
874 VFS_MPLOCK1(vp->v_mount);
875 DO_OPS(ops, error, &ap, vop_print);
876 VFS_MPUNLOCK(vp->v_mount);
884 vop_pathconf(struct vop_ops *ops, struct vnode *vp, int name,
887 struct vop_pathconf_args ap;
891 ap.a_head.a_desc = &vop_pathconf_desc;
892 ap.a_head.a_ops = ops;
895 ap.a_retval = retval;
897 VFS_MPLOCK1(vp->v_mount);
898 DO_OPS(ops, error, &ap, vop_pathconf);
899 VFS_MPUNLOCK(vp->v_mount);
907 vop_advlock(struct vop_ops *ops, struct vnode *vp, caddr_t id, int op,
908 struct flock *fl, int flags)
910 struct vop_advlock_args ap;
914 ap.a_head.a_desc = &vop_advlock_desc;
915 ap.a_head.a_ops = ops;
922 VFS_MPLOCK1(vp->v_mount);
923 DO_OPS(ops, error, &ap, vop_advlock);
924 VFS_MPUNLOCK(vp->v_mount);
932 vop_balloc(struct vop_ops *ops, struct vnode *vp, off_t startoffset,
933 int size, struct ucred *cred, int flags,
936 struct vop_balloc_args ap;
940 ap.a_head.a_desc = &vop_balloc_desc;
941 ap.a_head.a_ops = ops;
943 ap.a_startoffset = startoffset;
949 VFS_MPLOCK1(vp->v_mount);
950 DO_OPS(ops, error, &ap, vop_balloc);
951 VFS_MPUNLOCK(vp->v_mount);
959 vop_reallocblks(struct vop_ops *ops, struct vnode *vp,
960 struct cluster_save *buflist)
962 struct vop_reallocblks_args ap;
966 ap.a_head.a_desc = &vop_reallocblks_desc;
967 ap.a_head.a_ops = ops;
969 ap.a_buflist = buflist;
971 VFS_MPLOCK1(vp->v_mount);
972 DO_OPS(ops, error, &ap, vop_reallocblks);
973 VFS_MPUNLOCK(vp->v_mount);
981 vop_getpages(struct vop_ops *ops, struct vnode *vp, vm_page_t *m, int count,
982 int reqpage, vm_ooffset_t offset, int seqaccess)
984 struct vop_getpages_args ap;
988 ap.a_head.a_desc = &vop_getpages_desc;
989 ap.a_head.a_ops = ops;
993 ap.a_reqpage = reqpage;
994 ap.a_offset = offset;
995 ap.a_seqaccess = seqaccess;
997 VFS_MPLOCK1(vp->v_mount);
998 DO_OPS(ops, error, &ap, vop_getpages);
999 VFS_MPUNLOCK(vp->v_mount);
1007 vop_putpages(struct vop_ops *ops, struct vnode *vp, vm_page_t *m, int count,
1008 int sync, int *rtvals, vm_ooffset_t offset)
1010 struct vop_putpages_args ap;
1014 ap.a_head.a_desc = &vop_putpages_desc;
1015 ap.a_head.a_ops = ops;
1020 ap.a_rtvals = rtvals;
1021 ap.a_offset = offset;
1023 VFS_MPLOCK1(vp->v_mount);
1024 DO_OPS(ops, error, &ap, vop_putpages);
1025 VFS_MPUNLOCK(vp->v_mount);
1033 vop_freeblks(struct vop_ops *ops, struct vnode *vp, off_t offset, int length)
1035 struct vop_freeblks_args ap;
1039 ap.a_head.a_desc = &vop_freeblks_desc;
1040 ap.a_head.a_ops = ops;
1042 ap.a_offset = offset;
1043 ap.a_length = length;
1045 VFS_MPLOCK1(vp->v_mount);
1046 DO_OPS(ops, error, &ap, vop_freeblks);
1047 VFS_MPUNLOCK(vp->v_mount);
1055 vop_getacl(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
1056 struct acl *aclp, struct ucred *cred)
1058 struct vop_getacl_args ap;
1062 ap.a_head.a_desc = &vop_getacl_desc;
1063 ap.a_head.a_ops = ops;
1069 VFS_MPLOCK1(vp->v_mount);
1070 DO_OPS(ops, error, &ap, vop_getacl);
1071 VFS_MPUNLOCK(vp->v_mount);
1079 vop_setacl(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
1080 struct acl *aclp, struct ucred *cred)
1082 struct vop_setacl_args ap;
1086 ap.a_head.a_desc = &vop_setacl_desc;
1087 ap.a_head.a_ops = ops;
1093 VFS_MPLOCK1(vp->v_mount);
1094 DO_OPS(ops, error, &ap, vop_setacl);
1095 VFS_MPUNLOCK(vp->v_mount);
1103 vop_aclcheck(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
1104 struct acl *aclp, struct ucred *cred)
1106 struct vop_aclcheck_args ap;
1110 ap.a_head.a_desc = &vop_aclcheck_desc;
1111 ap.a_head.a_ops = ops;
1117 VFS_MPLOCK1(vp->v_mount);
1118 DO_OPS(ops, error, &ap, vop_aclcheck);
1119 VFS_MPUNLOCK(vp->v_mount);
1127 vop_getextattr(struct vop_ops *ops, struct vnode *vp, int attrnamespace,
1128 char *attrname, struct uio *uio, struct ucred *cred)
1130 struct vop_getextattr_args ap;
1134 ap.a_head.a_desc = &vop_getextattr_desc;
1135 ap.a_head.a_ops = ops;
1137 ap.a_attrnamespace = attrnamespace;
1138 ap.a_attrname = attrname;
1142 VFS_MPLOCK1(vp->v_mount);
1143 DO_OPS(ops, error, &ap, vop_getextattr);
1144 VFS_MPUNLOCK(vp->v_mount);
1152 vop_setextattr(struct vop_ops *ops, struct vnode *vp, int attrnamespace,
1153 char *attrname, struct uio *uio, struct ucred *cred)
1155 struct vop_setextattr_args ap;
1159 ap.a_head.a_desc = &vop_setextattr_desc;
1160 ap.a_head.a_ops = ops;
1162 ap.a_attrnamespace = attrnamespace;
1163 ap.a_attrname = attrname;
1167 VFS_MPLOCK1(vp->v_mount);
1168 DO_OPS(ops, error, &ap, vop_setextattr);
1169 VFS_MPUNLOCK(vp->v_mount);
1177 vop_mountctl(struct vop_ops *ops, struct vnode *vp, int op, struct file *fp,
1178 const void *ctl, int ctllen, void *buf, int buflen, int *res)
1180 struct vop_mountctl_args ap;
1184 ap.a_head.a_desc = &vop_mountctl_desc;
1185 ap.a_head.a_ops = ops;
1189 ap.a_ctllen = ctllen;
1191 ap.a_buflen = buflen;
1194 VFS_MPLOCK1(vp->v_mount);
1195 DO_OPS(ops, error, &ap, vop_mountctl);
1196 VFS_MPUNLOCK(vp->v_mount);
1204 vop_markatime(struct vop_ops *ops, struct vnode *vp, struct ucred *cred)
1206 struct vop_markatime_args ap;
1210 ap.a_head.a_desc = &vop_markatime_desc;
1211 ap.a_head.a_ops = ops;
1215 VFS_MPLOCK1(vp->v_mount);
1216 DO_OPS(ops, error, &ap, vop_markatime);
1217 VFS_MPUNLOCK(vp->v_mount);
1224 * nresolve takes a locked ncp, a referenced but unlocked dvp, and a cred,
1225 * and resolves the ncp into a positive or negative hit.
1227 * The namecache is automatically adjusted by this function. The ncp
1228 * is left locked on return.
1233 vop_nresolve(struct vop_ops *ops, struct nchandle *nch,
1234 struct vnode *dvp, struct ucred *cred)
1236 struct vop_nresolve_args ap;
1240 ap.a_head.a_desc = &vop_nresolve_desc;
1241 ap.a_head.a_ops = ops;
1246 VFS_MPLOCK1(dvp->v_mount);
1247 DO_OPS(ops, error, &ap, vop_nresolve);
1248 VFS_MPUNLOCK(dvp->v_mount);
1253 * nlookupdotdot takes an unlocked directory, referenced dvp, and looks
1254 * up "..", returning a locked parent directory in *vpp. If an error
1255 * occurs *vpp will be NULL.
1260 vop_nlookupdotdot(struct vop_ops *ops, struct vnode *dvp,
1261 struct vnode **vpp, struct ucred *cred, char **fakename)
1263 struct vop_nlookupdotdot_args ap;
1267 ap.a_head.a_desc = &vop_nlookupdotdot_desc;
1268 ap.a_head.a_ops = ops;
1272 ap.a_fakename = fakename;
1274 VFS_MPLOCK1(dvp->v_mount);
1275 DO_OPS(ops, error, &ap, vop_nlookupdotdot);
1276 VFS_MPUNLOCK(dvp->v_mount);
1281 * ncreate takes a locked, resolved ncp that typically represents a negative
1282 * cache hit and creates the file or node specified by the ncp, cred, and
1283 * vattr. If no error occurs a locked vnode is returned in *vpp.
1285 * The dvp passed in is referenced but unlocked.
1287 * The namecache is automatically adjusted by this function. The ncp
1288 * is left locked on return.
1293 vop_ncreate(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1294 struct vnode **vpp, struct ucred *cred, struct vattr *vap)
1296 struct vop_ncreate_args ap;
1300 ap.a_head.a_desc = &vop_ncreate_desc;
1301 ap.a_head.a_ops = ops;
1308 VFS_MPLOCK1(dvp->v_mount);
1309 DO_OPS(ops, error, &ap, vop_ncreate);
1310 VFS_MPUNLOCK(dvp->v_mount);
1315 * nmkdir takes a locked, resolved ncp that typically represents a negative
1316 * cache hit and creates the directory specified by the ncp, cred, and
1317 * vattr. If no error occurs a locked vnode is returned in *vpp.
1319 * The dvp passed in is referenced but unlocked.
1321 * The namecache is automatically adjusted by this function. The ncp
1322 * is left locked on return.
1327 vop_nmkdir(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1328 struct vnode **vpp, struct ucred *cred, struct vattr *vap)
1330 struct vop_nmkdir_args ap;
1334 ap.a_head.a_desc = &vop_nmkdir_desc;
1335 ap.a_head.a_ops = ops;
1342 VFS_MPLOCK1(dvp->v_mount);
1343 DO_OPS(ops, error, &ap, vop_nmkdir);
1344 VFS_MPUNLOCK(dvp->v_mount);
1349 * nmknod takes a locked, resolved ncp that typically represents a negative
1350 * cache hit and creates the node specified by the ncp, cred, and
1351 * vattr. If no error occurs a locked vnode is returned in *vpp.
1353 * The dvp passed in is referenced but unlocked.
1355 * The namecache is automatically adjusted by this function. The ncp
1356 * is left locked on return.
1361 vop_nmknod(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1362 struct vnode **vpp, struct ucred *cred, struct vattr *vap)
1364 struct vop_nmknod_args ap;
1368 ap.a_head.a_desc = &vop_nmknod_desc;
1369 ap.a_head.a_ops = ops;
1376 VFS_MPLOCK1(dvp->v_mount);
1377 DO_OPS(ops, error, &ap, vop_nmknod);
1378 VFS_MPUNLOCK(dvp->v_mount);
1383 * nlink takes a locked, resolved ncp that typically represents a negative
1384 * cache hit and creates the node specified by the ncp, cred, and
1385 * existing vnode. The passed vp must be locked and will remain locked
1386 * on return, as does the ncp, whether an error occurs or not.
1388 * The dvp passed in is referenced but unlocked.
1390 * The namecache is automatically adjusted by this function. The ncp
1391 * is left locked on return.
1396 vop_nlink(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1397 struct vnode *vp, struct ucred *cred)
1399 struct vop_nlink_args ap;
1403 ap.a_head.a_desc = &vop_nlink_desc;
1404 ap.a_head.a_ops = ops;
1410 VFS_MPLOCK1(dvp->v_mount);
1411 DO_OPS(ops, error, &ap, vop_nlink);
1412 VFS_MPUNLOCK(dvp->v_mount);
1417 * nsymlink takes a locked, resolved ncp that typically represents a negative
1418 * cache hit and creates a symbolic link based on cred, vap, and target (the
1419 * contents of the link). If no error occurs a locked vnode is returned in
1422 * The dvp passed in is referenced but unlocked.
1424 * The namecache is automatically adjusted by this function. The ncp
1425 * is left locked on return.
1430 vop_nsymlink(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1431 struct vnode **vpp, struct ucred *cred,
1432 struct vattr *vap, char *target)
1434 struct vop_nsymlink_args ap;
1438 ap.a_head.a_desc = &vop_nsymlink_desc;
1439 ap.a_head.a_ops = ops;
1445 ap.a_target = target;
1447 VFS_MPLOCK1(dvp->v_mount);
1448 DO_OPS(ops, error, &ap, vop_nsymlink);
1449 VFS_MPUNLOCK(dvp->v_mount);
1454 * nwhiteout takes a locked, resolved ncp that can represent a positive or
1455 * negative hit and executes the whiteout function specified in flags.
1457 * The dvp passed in is referenced but unlocked.
1459 * The namecache is automatically adjusted by this function. The ncp
1460 * is left locked on return.
1465 vop_nwhiteout(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1466 struct ucred *cred, int flags)
1468 struct vop_nwhiteout_args ap;
1472 ap.a_head.a_desc = &vop_nwhiteout_desc;
1473 ap.a_head.a_ops = ops;
1479 VFS_MPLOCK1(dvp->v_mount);
1480 DO_OPS(ops, error, &ap, vop_nwhiteout);
1481 VFS_MPUNLOCK(dvp->v_mount);
1486 * nremove takes a locked, resolved ncp that generally represents a
1487 * positive hit and removes the file.
1489 * The dvp passed in is referenced but unlocked.
1491 * The namecache is automatically adjusted by this function. The ncp
1492 * is left locked on return.
1496 /* FIXME: only substract the file size for its last link */
1498 vop_nremove(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1501 struct vop_nremove_args ap;
1506 ap.a_head.a_desc = &vop_nremove_desc;
1507 ap.a_head.a_ops = ops;
1512 if ((error = VOP_GETATTR(nch->ncp->nc_vp, &va)) != 0)
1515 VFS_MPLOCK1(dvp->v_mount);
1516 DO_OPS(ops, error, &ap, vop_nremove);
1517 VFS_ACCOUNT(nch->mount, va.va_uid, va.va_gid, -va.va_size);
1518 VFS_MPUNLOCK(dvp->v_mount);
1523 * nrmdir takes a locked, resolved ncp that generally represents a
1524 * directory and removes the directory.
1526 * The dvp passed in is referenced but unlocked.
1528 * The namecache is automatically adjusted by this function. The ncp
1529 * is left locked on return.
1534 vop_nrmdir(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1537 struct vop_nrmdir_args ap;
1541 ap.a_head.a_desc = &vop_nrmdir_desc;
1542 ap.a_head.a_ops = ops;
1547 VFS_MPLOCK1(dvp->v_mount);
1548 DO_OPS(ops, error, &ap, vop_nrmdir);
1549 VFS_MPUNLOCK(dvp->v_mount);
1554 * nrename takes TWO locked, resolved ncp's and the cred of the caller
1555 * and renames the source ncp to the target ncp. The target ncp may
1556 * represent a positive or negative hit.
1558 * The fdvp and tdvp passed in are referenced but unlocked.
1560 * The namecache is automatically adjusted by this function. The ncp
1561 * is left locked on return. The source ncp is typically changed to
1562 * a negative cache hit and the target ncp typically takes on the
1563 * source ncp's underlying file.
1568 vop_nrename(struct vop_ops *ops,
1569 struct nchandle *fnch, struct nchandle *tnch,
1570 struct vnode *fdvp, struct vnode *tdvp,
1573 struct vop_nrename_args ap;
1577 ap.a_head.a_desc = &vop_nrename_desc;
1578 ap.a_head.a_ops = ops;
1585 VFS_MPLOCK1(fdvp->v_mount);
1586 DO_OPS(ops, error, &ap, vop_nrename);
1587 VFS_MPUNLOCK(fdvp->v_mount);
1591 /************************************************************************
1592 * PRIMARY VNODE OPERATIONS FORWARDING CALLS *
1593 ************************************************************************
1595 * These procedures are called from VFSs such as unionfs and nullfs
1596 * when they wish to forward an operation on one VFS to another. The
1597 * argument structure/message is modified and then directly passed to the
1598 * appropriate routine. This routines may also be called by initiators
1599 * who have an argument structure in hand rather then discreet arguments.
1601 * MPSAFE - Caller expected to already hold the appropriate vfs lock.
1604 vop_vnoperate_ap(struct vop_generic_args *ap)
1606 struct vop_ops *ops;
1610 error = VOCALL(ops, ap);
1616 * This routine is called by the cache coherency layer to execute the actual
1617 * VFS operation. If a journaling layer is present we call though it, else
1618 * we call the native VOP functions.
1621 vop_cache_operate_ap(struct vop_generic_args *ap)
1623 struct vop_ops *ops;
1627 if (ops->head.vv_mount->mnt_vn_journal_ops)
1628 error = VOCALL(ops->head.vv_mount->mnt_vn_journal_ops, ap);
1630 error = VOCALL(ops->head.vv_mount->mnt_vn_norm_ops, ap);
1636 * This routine is called by the journaling layer to execute the actual
1640 vop_journal_operate_ap(struct vop_generic_args *ap)
1642 struct vop_ops *ops;
1646 error = VOCALL(ops->head.vv_mount->mnt_vn_norm_ops, ap);
1652 vop_open_ap(struct vop_open_args *ap)
1656 DO_OPS(ap->a_head.a_ops, error, ap, vop_open);
1661 vop_close_ap(struct vop_close_args *ap)
1665 DO_OPS(ap->a_head.a_ops, error, ap, vop_close);
1670 vop_access_ap(struct vop_access_args *ap)
1674 DO_OPS(ap->a_head.a_ops, error, ap, vop_access);
1679 vop_getattr_ap(struct vop_getattr_args *ap)
1683 DO_OPS(ap->a_head.a_ops, error, ap, vop_getattr);
1688 vop_setattr_ap(struct vop_setattr_args *ap)
1692 DO_OPS(ap->a_head.a_ops, error, ap, vop_setattr);
1697 vop_read_ap(struct vop_read_args *ap)
1701 DO_OPS(ap->a_head.a_ops, error, ap, vop_read);
1706 vop_write_ap(struct vop_write_args *ap)
1710 DO_OPS(ap->a_head.a_ops, error, ap, vop_write);
1715 vop_ioctl_ap(struct vop_ioctl_args *ap)
1719 DO_OPS(ap->a_head.a_ops, error, ap, vop_ioctl);
1724 vop_poll_ap(struct vop_poll_args *ap)
1728 DO_OPS(ap->a_head.a_ops, error, ap, vop_poll);
1733 vop_kqfilter_ap(struct vop_kqfilter_args *ap)
1737 DO_OPS(ap->a_head.a_ops, error, ap, vop_kqfilter);
1742 vop_mmap_ap(struct vop_mmap_args *ap)
1746 DO_OPS(ap->a_head.a_ops, error, ap, vop_mmap);
1751 vop_fsync_ap(struct vop_fsync_args *ap)
1755 DO_OPS(ap->a_head.a_ops, error, ap, vop_fsync);
1760 vop_readdir_ap(struct vop_readdir_args *ap)
1764 DO_OPS(ap->a_head.a_ops, error, ap, vop_readdir);
1769 vop_readlink_ap(struct vop_readlink_args *ap)
1773 DO_OPS(ap->a_head.a_ops, error, ap, vop_readlink);
1778 vop_inactive_ap(struct vop_inactive_args *ap)
1782 DO_OPS(ap->a_head.a_ops, error, ap, vop_inactive);
1787 vop_reclaim_ap(struct vop_reclaim_args *ap)
1791 DO_OPS(ap->a_head.a_ops, error, ap, vop_reclaim);
1796 vop_bmap_ap(struct vop_bmap_args *ap)
1800 DO_OPS(ap->a_head.a_ops, error, ap, vop_bmap);
1805 vop_strategy_ap(struct vop_strategy_args *ap)
1809 DO_OPS(ap->a_head.a_ops, error, ap, vop_strategy);
1814 vop_print_ap(struct vop_print_args *ap)
1818 DO_OPS(ap->a_head.a_ops, error, ap, vop_print);
1823 vop_pathconf_ap(struct vop_pathconf_args *ap)
1827 DO_OPS(ap->a_head.a_ops, error, ap, vop_pathconf);
1832 vop_advlock_ap(struct vop_advlock_args *ap)
1836 DO_OPS(ap->a_head.a_ops, error, ap, vop_advlock);
1841 vop_balloc_ap(struct vop_balloc_args *ap)
1845 DO_OPS(ap->a_head.a_ops, error, ap, vop_balloc);
1850 vop_reallocblks_ap(struct vop_reallocblks_args *ap)
1854 DO_OPS(ap->a_head.a_ops, error, ap, vop_reallocblks);
1859 vop_getpages_ap(struct vop_getpages_args *ap)
1863 DO_OPS(ap->a_head.a_ops, error, ap, vop_getpages);
1868 vop_putpages_ap(struct vop_putpages_args *ap)
1872 DO_OPS(ap->a_head.a_ops, error, ap, vop_putpages);
1877 vop_freeblks_ap(struct vop_freeblks_args *ap)
1881 DO_OPS(ap->a_head.a_ops, error, ap, vop_freeblks);
1886 vop_getacl_ap(struct vop_getacl_args *ap)
1890 DO_OPS(ap->a_head.a_ops, error, ap, vop_getacl);
1895 vop_setacl_ap(struct vop_setacl_args *ap)
1899 DO_OPS(ap->a_head.a_ops, error, ap, vop_setacl);
1904 vop_aclcheck_ap(struct vop_aclcheck_args *ap)
1908 DO_OPS(ap->a_head.a_ops, error, ap, vop_aclcheck);
1913 vop_getextattr_ap(struct vop_getextattr_args *ap)
1917 DO_OPS(ap->a_head.a_ops, error, ap, vop_getextattr);
1922 vop_setextattr_ap(struct vop_setextattr_args *ap)
1926 DO_OPS(ap->a_head.a_ops, error, ap, vop_setextattr);
1931 vop_mountctl_ap(struct vop_mountctl_args *ap)
1935 DO_OPS(ap->a_head.a_ops, error, ap, vop_mountctl);
1940 vop_markatime_ap(struct vop_markatime_args *ap)
1944 DO_OPS(ap->a_head.a_ops, error, ap, vop_markatime);
1949 vop_nresolve_ap(struct vop_nresolve_args *ap)
1953 DO_OPS(ap->a_head.a_ops, error, ap, vop_nresolve);
1958 vop_nlookupdotdot_ap(struct vop_nlookupdotdot_args *ap)
1962 DO_OPS(ap->a_head.a_ops, error, ap, vop_nlookupdotdot);
1967 vop_ncreate_ap(struct vop_ncreate_args *ap)
1971 DO_OPS(ap->a_head.a_ops, error, ap, vop_ncreate);
1976 vop_nmkdir_ap(struct vop_nmkdir_args *ap)
1980 DO_OPS(ap->a_head.a_ops, error, ap, vop_nmkdir);
1985 vop_nmknod_ap(struct vop_nmknod_args *ap)
1989 DO_OPS(ap->a_head.a_ops, error, ap, vop_nmknod);
1994 vop_nlink_ap(struct vop_nlink_args *ap)
1998 DO_OPS(ap->a_head.a_ops, error, ap, vop_nlink);
2003 vop_nsymlink_ap(struct vop_nsymlink_args *ap)
2007 DO_OPS(ap->a_head.a_ops, error, ap, vop_nsymlink);
2012 vop_nwhiteout_ap(struct vop_nwhiteout_args *ap)
2016 DO_OPS(ap->a_head.a_ops, error, ap, vop_nwhiteout);
2021 vop_nremove_ap(struct vop_nremove_args *ap)
2025 DO_OPS(ap->a_head.a_ops, error, ap, vop_nremove);
2030 vop_nrmdir_ap(struct vop_nrmdir_args *ap)
2034 DO_OPS(ap->a_head.a_ops, error, ap, vop_nrmdir);
2039 vop_nrename_ap(struct vop_nrename_args *ap)
2043 DO_OPS(ap->a_head.a_ops, error, ap, vop_nrename);