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;
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 /* does this vnode belong to a pfs/nullfs mount ? */
442 if (vp->v_pfsmp != NULL) {
443 /* yes, use a copy of the real mp */
446 /* no, we can use vp->v_mount directly */
449 VFS_ACCOUNT(mp, va.va_uid, va.va_gid, size_after - size_before);
451 VFS_MPUNLOCK(vp->v_mount);
459 vop_ioctl(struct vop_ops *ops, struct vnode *vp, u_long command, caddr_t data,
460 int fflag, struct ucred *cred, struct sysmsg *msg)
462 struct vop_ioctl_args ap;
466 ap.a_head.a_desc = &vop_ioctl_desc;
467 ap.a_head.a_ops = ops;
469 ap.a_command = command;
475 VFS_MPLOCK1(vp->v_mount);
476 DO_OPS(ops, error, &ap, vop_ioctl);
477 VFS_MPUNLOCK(vp->v_mount);
485 vop_poll(struct vop_ops *ops, struct vnode *vp, int events, struct ucred *cred)
487 struct vop_poll_args ap;
491 ap.a_head.a_desc = &vop_poll_desc;
492 ap.a_head.a_ops = ops;
494 ap.a_events = events;
497 VFS_MPLOCK1(vp->v_mount);
498 DO_OPS(ops, error, &ap, vop_poll);
499 VFS_MPUNLOCK(vp->v_mount);
507 vop_kqfilter(struct vop_ops *ops, struct vnode *vp, struct knote *kn)
509 struct vop_kqfilter_args ap;
513 ap.a_head.a_desc = &vop_kqfilter_desc;
514 ap.a_head.a_ops = ops;
518 VFS_MPLOCK1(vp->v_mount);
519 DO_OPS(ops, error, &ap, vop_kqfilter);
520 VFS_MPUNLOCK(vp->v_mount);
528 vop_mmap(struct vop_ops *ops, struct vnode *vp, int fflags, struct ucred *cred)
530 struct vop_mmap_args ap;
534 ap.a_head.a_desc = &vop_mmap_desc;
535 ap.a_head.a_ops = ops;
537 ap.a_fflags = fflags;
540 VFS_MPLOCK1(vp->v_mount);
541 DO_OPS(ops, error, &ap, vop_mmap);
542 VFS_MPUNLOCK(vp->v_mount);
550 vop_fsync(struct vop_ops *ops, struct vnode *vp, int waitfor, int flags)
552 struct vop_fsync_args ap;
556 ap.a_head.a_desc = &vop_fsync_desc;
557 ap.a_head.a_ops = ops;
559 ap.a_waitfor = waitfor;
562 VFS_MPLOCK1(vp->v_mount);
563 DO_OPS(ops, error, &ap, vop_fsync);
564 VFS_MPUNLOCK(vp->v_mount);
572 vop_old_remove(struct vop_ops *ops, struct vnode *dvp,
573 struct vnode *vp, struct componentname *cnp)
575 struct vop_old_remove_args ap;
579 ap.a_head.a_desc = &vop_old_remove_desc;
580 ap.a_head.a_ops = ops;
585 VFS_MPLOCK1(dvp->v_mount);
586 DO_OPS(ops, error, &ap, vop_old_remove);
587 VFS_MPUNLOCK(dvp->v_mount);
595 vop_old_link(struct vop_ops *ops, struct vnode *tdvp,
596 struct vnode *vp, struct componentname *cnp)
598 struct vop_old_link_args ap;
602 ap.a_head.a_desc = &vop_old_link_desc;
603 ap.a_head.a_ops = ops;
608 VFS_MPLOCK1(tdvp->v_mount);
609 DO_OPS(ops, error, &ap, vop_old_link);
610 VFS_MPUNLOCK(tdvp->v_mount);
618 vop_old_rename(struct vop_ops *ops,
619 struct vnode *fdvp, struct vnode *fvp, struct componentname *fcnp,
620 struct vnode *tdvp, struct vnode *tvp, struct componentname *tcnp)
622 struct vop_old_rename_args ap;
626 ap.a_head.a_desc = &vop_old_rename_desc;
627 ap.a_head.a_ops = ops;
635 VFS_MPLOCK1(tdvp->v_mount);
636 DO_OPS(ops, error, &ap, vop_old_rename);
637 VFS_MPUNLOCK(tdvp->v_mount);
645 vop_old_mkdir(struct vop_ops *ops, struct vnode *dvp,
646 struct vnode **vpp, struct componentname *cnp, struct vattr *vap)
648 struct vop_old_mkdir_args ap;
652 ap.a_head.a_desc = &vop_old_mkdir_desc;
653 ap.a_head.a_ops = ops;
659 VFS_MPLOCK1(dvp->v_mount);
660 DO_OPS(ops, error, &ap, vop_old_mkdir);
661 VFS_MPUNLOCK(dvp->v_mount);
669 vop_old_rmdir(struct vop_ops *ops, struct vnode *dvp,
670 struct vnode *vp, struct componentname *cnp)
672 struct vop_old_rmdir_args ap;
676 ap.a_head.a_desc = &vop_old_rmdir_desc;
677 ap.a_head.a_ops = ops;
682 VFS_MPLOCK1(dvp->v_mount);
683 DO_OPS(ops, error, &ap, vop_old_rmdir);
684 VFS_MPUNLOCK(dvp->v_mount);
692 vop_old_symlink(struct vop_ops *ops, struct vnode *dvp,
693 struct vnode **vpp, struct componentname *cnp,
694 struct vattr *vap, char *target)
696 struct vop_old_symlink_args ap;
700 ap.a_head.a_desc = &vop_old_symlink_desc;
701 ap.a_head.a_ops = ops;
706 ap.a_target = target;
708 VFS_MPLOCK1(dvp->v_mount);
709 DO_OPS(ops, error, &ap, vop_old_symlink);
710 VFS_MPUNLOCK(dvp->v_mount);
718 vop_readdir(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
719 struct ucred *cred, int *eofflag, int *ncookies, off_t **cookies)
721 struct vop_readdir_args ap;
725 ap.a_head.a_desc = &vop_readdir_desc;
726 ap.a_head.a_ops = ops;
730 ap.a_eofflag = eofflag;
731 ap.a_ncookies = ncookies;
732 ap.a_cookies = cookies;
734 VFS_MPLOCK1(vp->v_mount);
735 DO_OPS(ops, error, &ap, vop_readdir);
736 VFS_MPUNLOCK(vp->v_mount);
744 vop_readlink(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
747 struct vop_readlink_args ap;
751 ap.a_head.a_desc = &vop_readlink_desc;
752 ap.a_head.a_ops = ops;
757 VFS_MPLOCK1(vp->v_mount);
758 DO_OPS(ops, error, &ap, vop_readlink);
759 VFS_MPUNLOCK(vp->v_mount);
767 vop_inactive(struct vop_ops *ops, struct vnode *vp)
769 struct vop_inactive_args ap;
774 ap.a_head.a_desc = &vop_inactive_desc;
775 ap.a_head.a_ops = ops;
779 * WARNING! Deactivation of the vnode can cause it to be recycled,
780 * clearing vp->v_mount.
783 VFS_MPLOCK_FLAG(mp, MNTK_IN_MPSAFE);
784 DO_OPS(ops, error, &ap, vop_inactive);
793 vop_reclaim(struct vop_ops *ops, struct vnode *vp)
795 struct vop_reclaim_args ap;
800 ap.a_head.a_desc = &vop_reclaim_desc;
801 ap.a_head.a_ops = ops;
805 * WARNING! Reclamation of the vnode will clear vp->v_mount.
809 DO_OPS(ops, error, &ap, vop_reclaim);
818 vop_bmap(struct vop_ops *ops, struct vnode *vp, off_t loffset,
819 off_t *doffsetp, int *runp, int *runb, buf_cmd_t cmd)
821 struct vop_bmap_args ap;
825 ap.a_head.a_desc = &vop_bmap_desc;
826 ap.a_head.a_ops = ops;
828 ap.a_loffset = loffset;
829 ap.a_doffsetp = doffsetp;
834 VFS_MPLOCK1(vp->v_mount);
835 DO_OPS(ops, error, &ap, vop_bmap);
836 VFS_MPUNLOCK(vp->v_mount);
844 vop_strategy(struct vop_ops *ops, struct vnode *vp, struct bio *bio)
846 struct vop_strategy_args ap;
850 ap.a_head.a_desc = &vop_strategy_desc;
851 ap.a_head.a_ops = ops;
856 VFS_MPLOCK_FLAG(vp->v_mount, MNTK_SG_MPSAFE);
857 DO_OPS(ops, error, &ap, vop_strategy);
858 VFS_MPUNLOCK(vp->v_mount);
860 /* ugly hack for swap */
862 DO_OPS(ops, error, &ap, vop_strategy);
872 vop_print(struct vop_ops *ops, struct vnode *vp)
874 struct vop_print_args ap;
878 ap.a_head.a_desc = &vop_print_desc;
879 ap.a_head.a_ops = ops;
882 VFS_MPLOCK1(vp->v_mount);
883 DO_OPS(ops, error, &ap, vop_print);
884 VFS_MPUNLOCK(vp->v_mount);
892 vop_pathconf(struct vop_ops *ops, struct vnode *vp, int name,
895 struct vop_pathconf_args ap;
899 ap.a_head.a_desc = &vop_pathconf_desc;
900 ap.a_head.a_ops = ops;
903 ap.a_retval = retval;
905 VFS_MPLOCK1(vp->v_mount);
906 DO_OPS(ops, error, &ap, vop_pathconf);
907 VFS_MPUNLOCK(vp->v_mount);
915 vop_advlock(struct vop_ops *ops, struct vnode *vp, caddr_t id, int op,
916 struct flock *fl, int flags)
918 struct vop_advlock_args ap;
922 ap.a_head.a_desc = &vop_advlock_desc;
923 ap.a_head.a_ops = ops;
930 VFS_MPLOCK1(vp->v_mount);
931 DO_OPS(ops, error, &ap, vop_advlock);
932 VFS_MPUNLOCK(vp->v_mount);
940 vop_balloc(struct vop_ops *ops, struct vnode *vp, off_t startoffset,
941 int size, struct ucred *cred, int flags,
944 struct vop_balloc_args ap;
948 ap.a_head.a_desc = &vop_balloc_desc;
949 ap.a_head.a_ops = ops;
951 ap.a_startoffset = startoffset;
957 VFS_MPLOCK1(vp->v_mount);
958 DO_OPS(ops, error, &ap, vop_balloc);
959 VFS_MPUNLOCK(vp->v_mount);
967 vop_reallocblks(struct vop_ops *ops, struct vnode *vp,
968 struct cluster_save *buflist)
970 struct vop_reallocblks_args ap;
974 ap.a_head.a_desc = &vop_reallocblks_desc;
975 ap.a_head.a_ops = ops;
977 ap.a_buflist = buflist;
979 VFS_MPLOCK1(vp->v_mount);
980 DO_OPS(ops, error, &ap, vop_reallocblks);
981 VFS_MPUNLOCK(vp->v_mount);
989 vop_getpages(struct vop_ops *ops, struct vnode *vp, vm_page_t *m, int count,
990 int reqpage, vm_ooffset_t offset, int seqaccess)
992 struct vop_getpages_args ap;
996 ap.a_head.a_desc = &vop_getpages_desc;
997 ap.a_head.a_ops = ops;
1001 ap.a_reqpage = reqpage;
1002 ap.a_offset = offset;
1003 ap.a_seqaccess = seqaccess;
1005 VFS_MPLOCK1(vp->v_mount);
1006 DO_OPS(ops, error, &ap, vop_getpages);
1007 VFS_MPUNLOCK(vp->v_mount);
1015 vop_putpages(struct vop_ops *ops, struct vnode *vp, vm_page_t *m, int count,
1016 int sync, int *rtvals, vm_ooffset_t offset)
1018 struct vop_putpages_args ap;
1022 ap.a_head.a_desc = &vop_putpages_desc;
1023 ap.a_head.a_ops = ops;
1028 ap.a_rtvals = rtvals;
1029 ap.a_offset = offset;
1031 VFS_MPLOCK1(vp->v_mount);
1032 DO_OPS(ops, error, &ap, vop_putpages);
1033 VFS_MPUNLOCK(vp->v_mount);
1041 vop_freeblks(struct vop_ops *ops, struct vnode *vp, off_t offset, int length)
1043 struct vop_freeblks_args ap;
1047 ap.a_head.a_desc = &vop_freeblks_desc;
1048 ap.a_head.a_ops = ops;
1050 ap.a_offset = offset;
1051 ap.a_length = length;
1053 VFS_MPLOCK1(vp->v_mount);
1054 DO_OPS(ops, error, &ap, vop_freeblks);
1055 VFS_MPUNLOCK(vp->v_mount);
1063 vop_getacl(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
1064 struct acl *aclp, struct ucred *cred)
1066 struct vop_getacl_args ap;
1070 ap.a_head.a_desc = &vop_getacl_desc;
1071 ap.a_head.a_ops = ops;
1077 VFS_MPLOCK1(vp->v_mount);
1078 DO_OPS(ops, error, &ap, vop_getacl);
1079 VFS_MPUNLOCK(vp->v_mount);
1087 vop_setacl(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
1088 struct acl *aclp, struct ucred *cred)
1090 struct vop_setacl_args ap;
1094 ap.a_head.a_desc = &vop_setacl_desc;
1095 ap.a_head.a_ops = ops;
1101 VFS_MPLOCK1(vp->v_mount);
1102 DO_OPS(ops, error, &ap, vop_setacl);
1103 VFS_MPUNLOCK(vp->v_mount);
1111 vop_aclcheck(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
1112 struct acl *aclp, struct ucred *cred)
1114 struct vop_aclcheck_args ap;
1118 ap.a_head.a_desc = &vop_aclcheck_desc;
1119 ap.a_head.a_ops = ops;
1125 VFS_MPLOCK1(vp->v_mount);
1126 DO_OPS(ops, error, &ap, vop_aclcheck);
1127 VFS_MPUNLOCK(vp->v_mount);
1135 vop_getextattr(struct vop_ops *ops, struct vnode *vp, int attrnamespace,
1136 char *attrname, struct uio *uio, struct ucred *cred)
1138 struct vop_getextattr_args ap;
1142 ap.a_head.a_desc = &vop_getextattr_desc;
1143 ap.a_head.a_ops = ops;
1145 ap.a_attrnamespace = attrnamespace;
1146 ap.a_attrname = attrname;
1150 VFS_MPLOCK1(vp->v_mount);
1151 DO_OPS(ops, error, &ap, vop_getextattr);
1152 VFS_MPUNLOCK(vp->v_mount);
1160 vop_setextattr(struct vop_ops *ops, struct vnode *vp, int attrnamespace,
1161 char *attrname, struct uio *uio, struct ucred *cred)
1163 struct vop_setextattr_args ap;
1167 ap.a_head.a_desc = &vop_setextattr_desc;
1168 ap.a_head.a_ops = ops;
1170 ap.a_attrnamespace = attrnamespace;
1171 ap.a_attrname = attrname;
1175 VFS_MPLOCK1(vp->v_mount);
1176 DO_OPS(ops, error, &ap, vop_setextattr);
1177 VFS_MPUNLOCK(vp->v_mount);
1185 vop_mountctl(struct vop_ops *ops, struct vnode *vp, int op, struct file *fp,
1186 const void *ctl, int ctllen, void *buf, int buflen, int *res)
1188 struct vop_mountctl_args ap;
1192 ap.a_head.a_desc = &vop_mountctl_desc;
1193 ap.a_head.a_ops = ops;
1197 ap.a_ctllen = ctllen;
1199 ap.a_buflen = buflen;
1202 VFS_MPLOCK1(vp->v_mount);
1203 DO_OPS(ops, error, &ap, vop_mountctl);
1204 VFS_MPUNLOCK(vp->v_mount);
1212 vop_markatime(struct vop_ops *ops, struct vnode *vp, struct ucred *cred)
1214 struct vop_markatime_args ap;
1218 ap.a_head.a_desc = &vop_markatime_desc;
1219 ap.a_head.a_ops = ops;
1223 VFS_MPLOCK1(vp->v_mount);
1224 DO_OPS(ops, error, &ap, vop_markatime);
1225 VFS_MPUNLOCK(vp->v_mount);
1232 * nresolve takes a locked ncp, a referenced but unlocked dvp, and a cred,
1233 * and resolves the ncp into a positive or negative hit.
1235 * The namecache is automatically adjusted by this function. The ncp
1236 * is left locked on return.
1241 vop_nresolve(struct vop_ops *ops, struct nchandle *nch,
1242 struct vnode *dvp, struct ucred *cred)
1244 struct vop_nresolve_args ap;
1248 ap.a_head.a_desc = &vop_nresolve_desc;
1249 ap.a_head.a_ops = ops;
1254 VFS_MPLOCK1(dvp->v_mount);
1255 DO_OPS(ops, error, &ap, vop_nresolve);
1256 VFS_MPUNLOCK(dvp->v_mount);
1261 * nlookupdotdot takes an unlocked directory, referenced dvp, and looks
1262 * up "..", returning a locked parent directory in *vpp. If an error
1263 * occurs *vpp will be NULL.
1268 vop_nlookupdotdot(struct vop_ops *ops, struct vnode *dvp,
1269 struct vnode **vpp, struct ucred *cred, char **fakename)
1271 struct vop_nlookupdotdot_args ap;
1275 ap.a_head.a_desc = &vop_nlookupdotdot_desc;
1276 ap.a_head.a_ops = ops;
1280 ap.a_fakename = fakename;
1282 VFS_MPLOCK1(dvp->v_mount);
1283 DO_OPS(ops, error, &ap, vop_nlookupdotdot);
1284 VFS_MPUNLOCK(dvp->v_mount);
1289 * ncreate takes a locked, resolved ncp that typically represents a negative
1290 * cache hit and creates the file or node specified by the ncp, cred, and
1291 * vattr. If no error occurs a locked vnode is returned in *vpp.
1293 * The dvp passed in is referenced but unlocked.
1295 * The namecache is automatically adjusted by this function. The ncp
1296 * is left locked on return.
1301 vop_ncreate(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1302 struct vnode **vpp, struct ucred *cred, struct vattr *vap)
1304 struct vop_ncreate_args ap;
1308 ap.a_head.a_desc = &vop_ncreate_desc;
1309 ap.a_head.a_ops = ops;
1316 VFS_MPLOCK1(dvp->v_mount);
1317 DO_OPS(ops, error, &ap, vop_ncreate);
1318 VFS_MPUNLOCK(dvp->v_mount);
1323 * nmkdir takes a locked, resolved ncp that typically represents a negative
1324 * cache hit and creates the directory specified by the ncp, cred, and
1325 * vattr. If no error occurs a locked vnode is returned in *vpp.
1327 * The dvp passed in is referenced but unlocked.
1329 * The namecache is automatically adjusted by this function. The ncp
1330 * is left locked on return.
1335 vop_nmkdir(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1336 struct vnode **vpp, struct ucred *cred, struct vattr *vap)
1338 struct vop_nmkdir_args ap;
1342 ap.a_head.a_desc = &vop_nmkdir_desc;
1343 ap.a_head.a_ops = ops;
1350 VFS_MPLOCK1(dvp->v_mount);
1351 DO_OPS(ops, error, &ap, vop_nmkdir);
1352 VFS_MPUNLOCK(dvp->v_mount);
1357 * nmknod takes a locked, resolved ncp that typically represents a negative
1358 * cache hit and creates the node specified by the ncp, cred, and
1359 * vattr. If no error occurs a locked vnode is returned in *vpp.
1361 * The dvp passed in is referenced but unlocked.
1363 * The namecache is automatically adjusted by this function. The ncp
1364 * is left locked on return.
1369 vop_nmknod(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1370 struct vnode **vpp, struct ucred *cred, struct vattr *vap)
1372 struct vop_nmknod_args ap;
1376 ap.a_head.a_desc = &vop_nmknod_desc;
1377 ap.a_head.a_ops = ops;
1384 VFS_MPLOCK1(dvp->v_mount);
1385 DO_OPS(ops, error, &ap, vop_nmknod);
1386 VFS_MPUNLOCK(dvp->v_mount);
1391 * nlink takes a locked, resolved ncp that typically represents a negative
1392 * cache hit and creates the node specified by the ncp, cred, and
1393 * existing vnode. The passed vp must be locked and will remain locked
1394 * on return, as does the ncp, whether an error occurs or not.
1396 * The dvp passed in is referenced but unlocked.
1398 * The namecache is automatically adjusted by this function. The ncp
1399 * is left locked on return.
1404 vop_nlink(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1405 struct vnode *vp, struct ucred *cred)
1407 struct vop_nlink_args ap;
1411 ap.a_head.a_desc = &vop_nlink_desc;
1412 ap.a_head.a_ops = ops;
1418 VFS_MPLOCK1(dvp->v_mount);
1419 DO_OPS(ops, error, &ap, vop_nlink);
1420 VFS_MPUNLOCK(dvp->v_mount);
1425 * nsymlink takes a locked, resolved ncp that typically represents a negative
1426 * cache hit and creates a symbolic link based on cred, vap, and target (the
1427 * contents of the link). If no error occurs a locked vnode is returned in
1430 * The dvp passed in is referenced but unlocked.
1432 * The namecache is automatically adjusted by this function. The ncp
1433 * is left locked on return.
1438 vop_nsymlink(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1439 struct vnode **vpp, struct ucred *cred,
1440 struct vattr *vap, char *target)
1442 struct vop_nsymlink_args ap;
1446 ap.a_head.a_desc = &vop_nsymlink_desc;
1447 ap.a_head.a_ops = ops;
1453 ap.a_target = target;
1455 VFS_MPLOCK1(dvp->v_mount);
1456 DO_OPS(ops, error, &ap, vop_nsymlink);
1457 VFS_MPUNLOCK(dvp->v_mount);
1462 * nwhiteout takes a locked, resolved ncp that can represent a positive or
1463 * negative hit and executes the whiteout function specified in flags.
1465 * The dvp passed in is referenced but unlocked.
1467 * The namecache is automatically adjusted by this function. The ncp
1468 * is left locked on return.
1473 vop_nwhiteout(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1474 struct ucred *cred, int flags)
1476 struct vop_nwhiteout_args ap;
1480 ap.a_head.a_desc = &vop_nwhiteout_desc;
1481 ap.a_head.a_ops = ops;
1487 VFS_MPLOCK1(dvp->v_mount);
1488 DO_OPS(ops, error, &ap, vop_nwhiteout);
1489 VFS_MPUNLOCK(dvp->v_mount);
1494 * nremove takes a locked, resolved ncp that generally represents a
1495 * positive hit and removes the file.
1497 * The dvp passed in is referenced but unlocked.
1499 * The namecache is automatically adjusted by this function. The ncp
1500 * is left locked on return.
1504 /* FIXME: only substract the file size for its last link */
1506 vop_nremove(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1509 struct vop_nremove_args ap;
1514 ap.a_head.a_desc = &vop_nremove_desc;
1515 ap.a_head.a_ops = ops;
1520 if ((error = VOP_GETATTR(nch->ncp->nc_vp, &va)) != 0)
1523 VFS_MPLOCK1(dvp->v_mount);
1524 DO_OPS(ops, error, &ap, vop_nremove);
1525 VFS_ACCOUNT(nch->mount, va.va_uid, va.va_gid, -va.va_size);
1526 VFS_MPUNLOCK(dvp->v_mount);
1531 * nrmdir takes a locked, resolved ncp that generally represents a
1532 * directory and removes the directory.
1534 * The dvp passed in is referenced but unlocked.
1536 * The namecache is automatically adjusted by this function. The ncp
1537 * is left locked on return.
1542 vop_nrmdir(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1545 struct vop_nrmdir_args ap;
1549 ap.a_head.a_desc = &vop_nrmdir_desc;
1550 ap.a_head.a_ops = ops;
1555 VFS_MPLOCK1(dvp->v_mount);
1556 DO_OPS(ops, error, &ap, vop_nrmdir);
1557 VFS_MPUNLOCK(dvp->v_mount);
1562 * nrename takes TWO locked, resolved ncp's and the cred of the caller
1563 * and renames the source ncp to the target ncp. The target ncp may
1564 * represent a positive or negative hit.
1566 * The fdvp and tdvp passed in are referenced but unlocked.
1568 * The namecache is automatically adjusted by this function. The ncp
1569 * is left locked on return. The source ncp is typically changed to
1570 * a negative cache hit and the target ncp typically takes on the
1571 * source ncp's underlying file.
1576 vop_nrename(struct vop_ops *ops,
1577 struct nchandle *fnch, struct nchandle *tnch,
1578 struct vnode *fdvp, struct vnode *tdvp,
1581 struct vop_nrename_args ap;
1585 ap.a_head.a_desc = &vop_nrename_desc;
1586 ap.a_head.a_ops = ops;
1593 VFS_MPLOCK1(fdvp->v_mount);
1594 DO_OPS(ops, error, &ap, vop_nrename);
1595 VFS_MPUNLOCK(fdvp->v_mount);
1599 /************************************************************************
1600 * PRIMARY VNODE OPERATIONS FORWARDING CALLS *
1601 ************************************************************************
1603 * These procedures are called from VFSs such as unionfs and nullfs
1604 * when they wish to forward an operation on one VFS to another. The
1605 * argument structure/message is modified and then directly passed to the
1606 * appropriate routine. This routines may also be called by initiators
1607 * who have an argument structure in hand rather then discreet arguments.
1609 * MPSAFE - Caller expected to already hold the appropriate vfs lock.
1612 vop_vnoperate_ap(struct vop_generic_args *ap)
1614 struct vop_ops *ops;
1618 error = VOCALL(ops, ap);
1624 * This routine is called by the cache coherency layer to execute the actual
1625 * VFS operation. If a journaling layer is present we call though it, else
1626 * we call the native VOP functions.
1629 vop_cache_operate_ap(struct vop_generic_args *ap)
1631 struct vop_ops *ops;
1635 if (ops->head.vv_mount->mnt_vn_journal_ops)
1636 error = VOCALL(ops->head.vv_mount->mnt_vn_journal_ops, ap);
1638 error = VOCALL(ops->head.vv_mount->mnt_vn_norm_ops, ap);
1644 * This routine is called by the journaling layer to execute the actual
1648 vop_journal_operate_ap(struct vop_generic_args *ap)
1650 struct vop_ops *ops;
1654 error = VOCALL(ops->head.vv_mount->mnt_vn_norm_ops, ap);
1660 vop_open_ap(struct vop_open_args *ap)
1664 DO_OPS(ap->a_head.a_ops, error, ap, vop_open);
1669 vop_close_ap(struct vop_close_args *ap)
1673 DO_OPS(ap->a_head.a_ops, error, ap, vop_close);
1678 vop_access_ap(struct vop_access_args *ap)
1682 DO_OPS(ap->a_head.a_ops, error, ap, vop_access);
1687 vop_getattr_ap(struct vop_getattr_args *ap)
1691 DO_OPS(ap->a_head.a_ops, error, ap, vop_getattr);
1696 vop_setattr_ap(struct vop_setattr_args *ap)
1700 DO_OPS(ap->a_head.a_ops, error, ap, vop_setattr);
1705 vop_read_ap(struct vop_read_args *ap)
1709 DO_OPS(ap->a_head.a_ops, error, ap, vop_read);
1714 vop_write_ap(struct vop_write_args *ap)
1718 DO_OPS(ap->a_head.a_ops, error, ap, vop_write);
1723 vop_ioctl_ap(struct vop_ioctl_args *ap)
1727 DO_OPS(ap->a_head.a_ops, error, ap, vop_ioctl);
1732 vop_poll_ap(struct vop_poll_args *ap)
1736 DO_OPS(ap->a_head.a_ops, error, ap, vop_poll);
1741 vop_kqfilter_ap(struct vop_kqfilter_args *ap)
1745 DO_OPS(ap->a_head.a_ops, error, ap, vop_kqfilter);
1750 vop_mmap_ap(struct vop_mmap_args *ap)
1754 DO_OPS(ap->a_head.a_ops, error, ap, vop_mmap);
1759 vop_fsync_ap(struct vop_fsync_args *ap)
1763 DO_OPS(ap->a_head.a_ops, error, ap, vop_fsync);
1768 vop_readdir_ap(struct vop_readdir_args *ap)
1772 DO_OPS(ap->a_head.a_ops, error, ap, vop_readdir);
1777 vop_readlink_ap(struct vop_readlink_args *ap)
1781 DO_OPS(ap->a_head.a_ops, error, ap, vop_readlink);
1786 vop_inactive_ap(struct vop_inactive_args *ap)
1790 DO_OPS(ap->a_head.a_ops, error, ap, vop_inactive);
1795 vop_reclaim_ap(struct vop_reclaim_args *ap)
1799 DO_OPS(ap->a_head.a_ops, error, ap, vop_reclaim);
1804 vop_bmap_ap(struct vop_bmap_args *ap)
1808 DO_OPS(ap->a_head.a_ops, error, ap, vop_bmap);
1813 vop_strategy_ap(struct vop_strategy_args *ap)
1817 DO_OPS(ap->a_head.a_ops, error, ap, vop_strategy);
1822 vop_print_ap(struct vop_print_args *ap)
1826 DO_OPS(ap->a_head.a_ops, error, ap, vop_print);
1831 vop_pathconf_ap(struct vop_pathconf_args *ap)
1835 DO_OPS(ap->a_head.a_ops, error, ap, vop_pathconf);
1840 vop_advlock_ap(struct vop_advlock_args *ap)
1844 DO_OPS(ap->a_head.a_ops, error, ap, vop_advlock);
1849 vop_balloc_ap(struct vop_balloc_args *ap)
1853 DO_OPS(ap->a_head.a_ops, error, ap, vop_balloc);
1858 vop_reallocblks_ap(struct vop_reallocblks_args *ap)
1862 DO_OPS(ap->a_head.a_ops, error, ap, vop_reallocblks);
1867 vop_getpages_ap(struct vop_getpages_args *ap)
1871 DO_OPS(ap->a_head.a_ops, error, ap, vop_getpages);
1876 vop_putpages_ap(struct vop_putpages_args *ap)
1880 DO_OPS(ap->a_head.a_ops, error, ap, vop_putpages);
1885 vop_freeblks_ap(struct vop_freeblks_args *ap)
1889 DO_OPS(ap->a_head.a_ops, error, ap, vop_freeblks);
1894 vop_getacl_ap(struct vop_getacl_args *ap)
1898 DO_OPS(ap->a_head.a_ops, error, ap, vop_getacl);
1903 vop_setacl_ap(struct vop_setacl_args *ap)
1907 DO_OPS(ap->a_head.a_ops, error, ap, vop_setacl);
1912 vop_aclcheck_ap(struct vop_aclcheck_args *ap)
1916 DO_OPS(ap->a_head.a_ops, error, ap, vop_aclcheck);
1921 vop_getextattr_ap(struct vop_getextattr_args *ap)
1925 DO_OPS(ap->a_head.a_ops, error, ap, vop_getextattr);
1930 vop_setextattr_ap(struct vop_setextattr_args *ap)
1934 DO_OPS(ap->a_head.a_ops, error, ap, vop_setextattr);
1939 vop_mountctl_ap(struct vop_mountctl_args *ap)
1943 DO_OPS(ap->a_head.a_ops, error, ap, vop_mountctl);
1948 vop_markatime_ap(struct vop_markatime_args *ap)
1952 DO_OPS(ap->a_head.a_ops, error, ap, vop_markatime);
1957 vop_nresolve_ap(struct vop_nresolve_args *ap)
1961 DO_OPS(ap->a_head.a_ops, error, ap, vop_nresolve);
1966 vop_nlookupdotdot_ap(struct vop_nlookupdotdot_args *ap)
1970 DO_OPS(ap->a_head.a_ops, error, ap, vop_nlookupdotdot);
1975 vop_ncreate_ap(struct vop_ncreate_args *ap)
1979 DO_OPS(ap->a_head.a_ops, error, ap, vop_ncreate);
1984 vop_nmkdir_ap(struct vop_nmkdir_args *ap)
1988 DO_OPS(ap->a_head.a_ops, error, ap, vop_nmkdir);
1993 vop_nmknod_ap(struct vop_nmknod_args *ap)
1997 DO_OPS(ap->a_head.a_ops, error, ap, vop_nmknod);
2002 vop_nlink_ap(struct vop_nlink_args *ap)
2006 DO_OPS(ap->a_head.a_ops, error, ap, vop_nlink);
2011 vop_nsymlink_ap(struct vop_nsymlink_args *ap)
2015 DO_OPS(ap->a_head.a_ops, error, ap, vop_nsymlink);
2020 vop_nwhiteout_ap(struct vop_nwhiteout_args *ap)
2024 DO_OPS(ap->a_head.a_ops, error, ap, vop_nwhiteout);
2029 vop_nremove_ap(struct vop_nremove_args *ap)
2033 DO_OPS(ap->a_head.a_ops, error, ap, vop_nremove);
2038 vop_nrmdir_ap(struct vop_nrmdir_args *ap)
2042 DO_OPS(ap->a_head.a_ops, error, ap, vop_nrmdir);
2047 vop_nrename_ap(struct vop_nrename_args *ap)
2051 DO_OPS(ap->a_head.a_ops, error, ap, vop_nrename);