3 * Copyright (c) 2004 The DragonFly Project. All rights reserved.
5 * This code is derived from software contributed to The DragonFly Project
6 * by Matthew Dillon <dillon@backplane.com>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
18 * 3. Neither the name of The DragonFly Project nor the names of its
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific, prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
25 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
26 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
27 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
28 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
29 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
30 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
31 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
32 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * $DragonFly: src/sys/kern/vfs_vopops.c,v 1.39 2008/06/19 23:27:35 dillon Exp $
38 #include <sys/param.h>
39 #include <sys/systm.h>
42 #include <sys/dirent.h>
43 #include <sys/domain.h>
44 #include <sys/eventhandler.h>
45 #include <sys/fcntl.h>
46 #include <sys/kernel.h>
47 #include <sys/kthread.h>
48 #include <sys/malloc.h>
50 #include <sys/mount.h>
52 #include <sys/namei.h>
53 #include <sys/reboot.h>
54 #include <sys/socket.h>
56 #include <sys/sysctl.h>
57 #include <sys/syslog.h>
58 #include <sys/vmmeter.h>
59 #include <sys/vnode.h>
60 #include <sys/vfsops.h>
62 #include <machine/limits.h>
65 #include <vm/vm_object.h>
66 #include <vm/vm_extern.h>
67 #include <vm/vm_kern.h>
69 #include <vm/vm_map.h>
70 #include <vm/vm_page.h>
71 #include <vm/vm_pager.h>
72 #include <vm/vnode_pager.h>
73 #include <vm/vm_zone.h>
76 #include <sys/thread2.h>
78 #define VDESCNAME(name) __CONCAT(__CONCAT(vop_,name),_desc)
80 #define VNODEOP_DESC_INIT(name) \
81 struct syslink_desc VDESCNAME(name) = { \
82 __offsetof(struct vop_ops, __CONCAT(vop_, name)), \
85 VNODEOP_DESC_INIT(default);
86 VNODEOP_DESC_INIT(old_lookup);
87 VNODEOP_DESC_INIT(old_create);
88 VNODEOP_DESC_INIT(old_whiteout);
89 VNODEOP_DESC_INIT(old_mknod);
90 VNODEOP_DESC_INIT(open);
91 VNODEOP_DESC_INIT(close);
92 VNODEOP_DESC_INIT(access);
93 VNODEOP_DESC_INIT(getattr);
94 VNODEOP_DESC_INIT(setattr);
95 VNODEOP_DESC_INIT(read);
96 VNODEOP_DESC_INIT(write);
97 VNODEOP_DESC_INIT(ioctl);
98 VNODEOP_DESC_INIT(poll);
99 VNODEOP_DESC_INIT(kqfilter);
100 VNODEOP_DESC_INIT(revoke);
101 VNODEOP_DESC_INIT(mmap);
102 VNODEOP_DESC_INIT(fsync);
103 VNODEOP_DESC_INIT(old_remove);
104 VNODEOP_DESC_INIT(old_link);
105 VNODEOP_DESC_INIT(old_rename);
107 VNODEOP_DESC_INIT(old_mkdir);
108 VNODEOP_DESC_INIT(old_rmdir);
109 VNODEOP_DESC_INIT(old_symlink);
110 VNODEOP_DESC_INIT(readdir);
111 VNODEOP_DESC_INIT(readlink);
112 VNODEOP_DESC_INIT(inactive);
113 VNODEOP_DESC_INIT(reclaim);
114 VNODEOP_DESC_INIT(bmap);
115 VNODEOP_DESC_INIT(strategy);
116 VNODEOP_DESC_INIT(print);
117 VNODEOP_DESC_INIT(pathconf);
118 VNODEOP_DESC_INIT(advlock);
119 VNODEOP_DESC_INIT(balloc);
120 VNODEOP_DESC_INIT(reallocblks);
121 VNODEOP_DESC_INIT(getpages);
122 VNODEOP_DESC_INIT(putpages);
123 VNODEOP_DESC_INIT(freeblks);
124 VNODEOP_DESC_INIT(getacl);
125 VNODEOP_DESC_INIT(setacl);
126 VNODEOP_DESC_INIT(aclcheck);
127 VNODEOP_DESC_INIT(getextattr);
128 VNODEOP_DESC_INIT(setextattr);
129 VNODEOP_DESC_INIT(mountctl);
130 VNODEOP_DESC_INIT(markatime);
132 VNODEOP_DESC_INIT(nresolve);
133 VNODEOP_DESC_INIT(nlookupdotdot);
134 VNODEOP_DESC_INIT(ncreate);
135 VNODEOP_DESC_INIT(nmkdir);
136 VNODEOP_DESC_INIT(nmknod);
137 VNODEOP_DESC_INIT(nlink);
138 VNODEOP_DESC_INIT(nsymlink);
139 VNODEOP_DESC_INIT(nwhiteout);
140 VNODEOP_DESC_INIT(nremove);
141 VNODEOP_DESC_INIT(nrmdir);
142 VNODEOP_DESC_INIT(nrename);
144 #define DO_OPS(ops, error, ap, vop_field) \
145 error = ops->vop_field(ap);
147 /************************************************************************
148 * PRIMARY HIGH LEVEL VNODE OPERATIONS CALLS *
149 ************************************************************************
151 * These procedures are called directly from the kernel and/or fileops
152 * code to perform file/device operations on the system.
154 * NOTE: The old namespace api functions such as vop_rename() are no longer
155 * available for general use and have been renamed to vop_old_*(). Only
156 * the code in vfs_default.c is allowed to call those ops.
160 vop_old_lookup(struct vop_ops *ops, struct vnode *dvp,
161 struct vnode **vpp, struct componentname *cnp)
163 struct vop_old_lookup_args ap;
166 ap.a_head.a_desc = &vop_old_lookup_desc;
167 ap.a_head.a_ops = ops;
172 DO_OPS(ops, error, &ap, vop_old_lookup);
177 vop_old_create(struct vop_ops *ops, struct vnode *dvp,
178 struct vnode **vpp, struct componentname *cnp, struct vattr *vap)
180 struct vop_old_create_args ap;
183 ap.a_head.a_desc = &vop_old_create_desc;
184 ap.a_head.a_ops = ops;
190 DO_OPS(ops, error, &ap, vop_old_create);
195 vop_old_whiteout(struct vop_ops *ops, struct vnode *dvp,
196 struct componentname *cnp, int flags)
198 struct vop_old_whiteout_args ap;
201 ap.a_head.a_desc = &vop_old_whiteout_desc;
202 ap.a_head.a_ops = ops;
207 DO_OPS(ops, error, &ap, vop_old_whiteout);
212 vop_old_mknod(struct vop_ops *ops, struct vnode *dvp,
213 struct vnode **vpp, struct componentname *cnp, struct vattr *vap)
215 struct vop_old_mknod_args ap;
218 ap.a_head.a_desc = &vop_old_mknod_desc;
219 ap.a_head.a_ops = ops;
225 DO_OPS(ops, error, &ap, vop_old_mknod);
230 vop_open(struct vop_ops *ops, struct vnode *vp, int mode, struct ucred *cred,
233 struct vop_open_args ap;
236 ap.a_head.a_desc = &vop_open_desc;
237 ap.a_head.a_ops = ops;
243 DO_OPS(ops, error, &ap, vop_open);
248 vop_close(struct vop_ops *ops, struct vnode *vp, int fflag)
250 struct vop_close_args ap;
253 ap.a_head.a_desc = &vop_close_desc;
254 ap.a_head.a_ops = ops;
258 DO_OPS(ops, error, &ap, vop_close);
263 vop_access(struct vop_ops *ops, struct vnode *vp, int mode, struct ucred *cred)
265 struct vop_access_args ap;
268 ap.a_head.a_desc = &vop_access_desc;
269 ap.a_head.a_ops = ops;
274 DO_OPS(ops, error, &ap, vop_access);
279 vop_getattr(struct vop_ops *ops, struct vnode *vp, struct vattr *vap)
281 struct vop_getattr_args ap;
284 ap.a_head.a_desc = &vop_getattr_desc;
285 ap.a_head.a_ops = ops;
289 DO_OPS(ops, error, &ap, vop_getattr);
292 * mount pointer may be NULL if vnode is dead.
294 if (ops->head.vv_mount &&
295 (ops->head.vv_mount->mnt_kern_flag & MNTK_FSMID) == 0) {
296 vap->va_fsmid = cache_sync_fsmid_vp(vp);
302 vop_setattr(struct vop_ops *ops, struct vnode *vp, struct vattr *vap,
305 struct vop_setattr_args ap;
308 ap.a_head.a_desc = &vop_setattr_desc;
309 ap.a_head.a_ops = ops;
314 DO_OPS(ops, error, &ap, vop_setattr);
316 cache_update_fsmid_vp(vp);
321 vop_read(struct vop_ops *ops, struct vnode *vp, struct uio *uio, int ioflag,
324 struct vop_read_args ap;
327 ap.a_head.a_desc = &vop_read_desc;
328 ap.a_head.a_ops = ops;
331 ap.a_ioflag = ioflag;
334 DO_OPS(ops, error, &ap, vop_read);
339 vop_write(struct vop_ops *ops, struct vnode *vp, struct uio *uio, int ioflag,
342 struct vop_write_args ap;
345 ap.a_head.a_desc = &vop_write_desc;
346 ap.a_head.a_ops = ops;
349 ap.a_ioflag = ioflag;
352 DO_OPS(ops, error, &ap, vop_write);
354 cache_update_fsmid_vp(vp);
359 vop_ioctl(struct vop_ops *ops, struct vnode *vp, u_long command, caddr_t data,
360 int fflag, struct ucred *cred)
362 struct vop_ioctl_args ap;
365 ap.a_head.a_desc = &vop_ioctl_desc;
366 ap.a_head.a_ops = ops;
368 ap.a_command = command;
373 DO_OPS(ops, error, &ap, vop_ioctl);
378 vop_poll(struct vop_ops *ops, struct vnode *vp, int events, struct ucred *cred)
380 struct vop_poll_args ap;
383 ap.a_head.a_desc = &vop_poll_desc;
384 ap.a_head.a_ops = ops;
386 ap.a_events = events;
389 DO_OPS(ops, error, &ap, vop_poll);
394 vop_kqfilter(struct vop_ops *ops, struct vnode *vp, struct knote *kn)
396 struct vop_kqfilter_args ap;
399 ap.a_head.a_desc = &vop_kqfilter_desc;
400 ap.a_head.a_ops = ops;
404 DO_OPS(ops, error, &ap, vop_kqfilter);
409 vop_revoke(struct vop_ops *ops, struct vnode *vp, int flags)
411 struct vop_revoke_args ap;
414 ap.a_head.a_desc = &vop_revoke_desc;
415 ap.a_head.a_ops = ops;
419 DO_OPS(ops, error, &ap, vop_revoke);
424 vop_mmap(struct vop_ops *ops, struct vnode *vp, int fflags, struct ucred *cred)
426 struct vop_mmap_args ap;
429 ap.a_head.a_desc = &vop_mmap_desc;
430 ap.a_head.a_ops = ops;
432 ap.a_fflags = fflags;
435 DO_OPS(ops, error, &ap, vop_mmap);
440 vop_fsync(struct vop_ops *ops, struct vnode *vp, int waitfor)
442 struct vop_fsync_args ap;
445 ap.a_head.a_desc = &vop_fsync_desc;
446 ap.a_head.a_ops = ops;
448 ap.a_waitfor = waitfor;
450 DO_OPS(ops, error, &ap, vop_fsync);
455 vop_old_remove(struct vop_ops *ops, struct vnode *dvp,
456 struct vnode *vp, struct componentname *cnp)
458 struct vop_old_remove_args ap;
461 ap.a_head.a_desc = &vop_old_remove_desc;
462 ap.a_head.a_ops = ops;
467 DO_OPS(ops, error, &ap, vop_old_remove);
472 vop_old_link(struct vop_ops *ops, struct vnode *tdvp,
473 struct vnode *vp, struct componentname *cnp)
475 struct vop_old_link_args ap;
478 ap.a_head.a_desc = &vop_old_link_desc;
479 ap.a_head.a_ops = ops;
484 DO_OPS(ops, error, &ap, vop_old_link);
489 vop_old_rename(struct vop_ops *ops,
490 struct vnode *fdvp, struct vnode *fvp, struct componentname *fcnp,
491 struct vnode *tdvp, struct vnode *tvp, struct componentname *tcnp)
493 struct vop_old_rename_args ap;
496 ap.a_head.a_desc = &vop_old_rename_desc;
497 ap.a_head.a_ops = ops;
505 DO_OPS(ops, error, &ap, vop_old_rename);
510 vop_old_mkdir(struct vop_ops *ops, struct vnode *dvp,
511 struct vnode **vpp, struct componentname *cnp, struct vattr *vap)
513 struct vop_old_mkdir_args ap;
516 ap.a_head.a_desc = &vop_old_mkdir_desc;
517 ap.a_head.a_ops = ops;
523 DO_OPS(ops, error, &ap, vop_old_mkdir);
528 vop_old_rmdir(struct vop_ops *ops, struct vnode *dvp,
529 struct vnode *vp, struct componentname *cnp)
531 struct vop_old_rmdir_args ap;
534 ap.a_head.a_desc = &vop_old_rmdir_desc;
535 ap.a_head.a_ops = ops;
540 DO_OPS(ops, error, &ap, vop_old_rmdir);
545 vop_old_symlink(struct vop_ops *ops, struct vnode *dvp,
546 struct vnode **vpp, struct componentname *cnp,
547 struct vattr *vap, char *target)
549 struct vop_old_symlink_args ap;
552 ap.a_head.a_desc = &vop_old_symlink_desc;
553 ap.a_head.a_ops = ops;
558 ap.a_target = target;
560 DO_OPS(ops, error, &ap, vop_old_symlink);
565 vop_readdir(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
566 struct ucred *cred, int *eofflag, int *ncookies, off_t **cookies)
568 struct vop_readdir_args ap;
571 ap.a_head.a_desc = &vop_readdir_desc;
572 ap.a_head.a_ops = ops;
576 ap.a_eofflag = eofflag;
577 ap.a_ncookies = ncookies;
578 ap.a_cookies = cookies;
580 DO_OPS(ops, error, &ap, vop_readdir);
585 vop_readlink(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
588 struct vop_readlink_args ap;
591 ap.a_head.a_desc = &vop_readlink_desc;
592 ap.a_head.a_ops = ops;
597 DO_OPS(ops, error, &ap, vop_readlink);
602 vop_inactive(struct vop_ops *ops, struct vnode *vp)
604 struct vop_inactive_args ap;
607 ap.a_head.a_desc = &vop_inactive_desc;
608 ap.a_head.a_ops = ops;
611 DO_OPS(ops, error, &ap, vop_inactive);
616 vop_reclaim(struct vop_ops *ops, struct vnode *vp)
618 struct vop_reclaim_args ap;
621 ap.a_head.a_desc = &vop_reclaim_desc;
622 ap.a_head.a_ops = ops;
625 DO_OPS(ops, error, &ap, vop_reclaim);
630 vop_bmap(struct vop_ops *ops, struct vnode *vp, off_t loffset,
631 off_t *doffsetp, int *runp, int *runb, buf_cmd_t cmd)
633 struct vop_bmap_args ap;
636 ap.a_head.a_desc = &vop_bmap_desc;
637 ap.a_head.a_ops = ops;
639 ap.a_loffset = loffset;
640 ap.a_doffsetp = doffsetp;
645 DO_OPS(ops, error, &ap, vop_bmap);
650 vop_strategy(struct vop_ops *ops, struct vnode *vp, struct bio *bio)
652 struct vop_strategy_args ap;
655 ap.a_head.a_desc = &vop_strategy_desc;
656 ap.a_head.a_ops = ops;
660 DO_OPS(ops, error, &ap, vop_strategy);
661 if (error == 0 && bio->bio_buf->b_cmd != BUF_CMD_READ)
662 cache_update_fsmid_vp(vp);
667 vop_print(struct vop_ops *ops, struct vnode *vp)
669 struct vop_print_args ap;
672 ap.a_head.a_desc = &vop_print_desc;
673 ap.a_head.a_ops = ops;
676 DO_OPS(ops, error, &ap, vop_print);
681 vop_pathconf(struct vop_ops *ops, struct vnode *vp, int name,
684 struct vop_pathconf_args ap;
687 ap.a_head.a_desc = &vop_pathconf_desc;
688 ap.a_head.a_ops = ops;
691 ap.a_retval = retval;
693 DO_OPS(ops, error, &ap, vop_pathconf);
698 vop_advlock(struct vop_ops *ops, struct vnode *vp, caddr_t id, int op,
699 struct flock *fl, int flags)
701 struct vop_advlock_args ap;
704 ap.a_head.a_desc = &vop_advlock_desc;
705 ap.a_head.a_ops = ops;
712 DO_OPS(ops, error, &ap, vop_advlock);
717 vop_balloc(struct vop_ops *ops, struct vnode *vp, off_t startoffset,
718 int size, struct ucred *cred, int flags,
721 struct vop_balloc_args ap;
724 ap.a_head.a_desc = &vop_balloc_desc;
725 ap.a_head.a_ops = ops;
727 ap.a_startoffset = startoffset;
733 DO_OPS(ops, error, &ap, vop_balloc);
738 vop_reallocblks(struct vop_ops *ops, struct vnode *vp,
739 struct cluster_save *buflist)
741 struct vop_reallocblks_args ap;
744 ap.a_head.a_desc = &vop_reallocblks_desc;
745 ap.a_head.a_ops = ops;
747 ap.a_buflist = buflist;
749 DO_OPS(ops, error, &ap, vop_reallocblks);
754 vop_getpages(struct vop_ops *ops, struct vnode *vp, vm_page_t *m, int count,
755 int reqpage, vm_ooffset_t offset)
757 struct vop_getpages_args ap;
760 ap.a_head.a_desc = &vop_getpages_desc;
761 ap.a_head.a_ops = ops;
765 ap.a_reqpage = reqpage;
766 ap.a_offset = offset;
768 DO_OPS(ops, error, &ap, vop_getpages);
773 vop_putpages(struct vop_ops *ops, struct vnode *vp, vm_page_t *m, int count,
774 int sync, int *rtvals, vm_ooffset_t offset)
776 struct vop_putpages_args ap;
779 ap.a_head.a_desc = &vop_putpages_desc;
780 ap.a_head.a_ops = ops;
785 ap.a_rtvals = rtvals;
786 ap.a_offset = offset;
788 DO_OPS(ops, error, &ap, vop_putpages);
790 cache_update_fsmid_vp(vp);
795 vop_freeblks(struct vop_ops *ops, struct vnode *vp, off_t offset, int length)
797 struct vop_freeblks_args ap;
800 ap.a_head.a_desc = &vop_freeblks_desc;
801 ap.a_head.a_ops = ops;
803 ap.a_offset = offset;
804 ap.a_length = length;
806 DO_OPS(ops, error, &ap, vop_freeblks);
811 vop_getacl(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
812 struct acl *aclp, struct ucred *cred)
814 struct vop_getacl_args ap;
817 ap.a_head.a_desc = &vop_getacl_desc;
818 ap.a_head.a_ops = ops;
824 DO_OPS(ops, error, &ap, vop_getacl);
829 vop_setacl(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
830 struct acl *aclp, struct ucred *cred)
832 struct vop_setacl_args ap;
835 ap.a_head.a_desc = &vop_setacl_desc;
836 ap.a_head.a_ops = ops;
842 DO_OPS(ops, error, &ap, vop_setacl);
844 cache_update_fsmid_vp(vp);
849 vop_aclcheck(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
850 struct acl *aclp, struct ucred *cred)
852 struct vop_aclcheck_args ap;
855 ap.a_head.a_desc = &vop_aclcheck_desc;
856 ap.a_head.a_ops = ops;
862 DO_OPS(ops, error, &ap, vop_aclcheck);
867 vop_getextattr(struct vop_ops *ops, struct vnode *vp, char *name,
868 struct uio *uio, struct ucred *cred)
870 struct vop_getextattr_args ap;
873 ap.a_head.a_desc = &vop_getextattr_desc;
874 ap.a_head.a_ops = ops;
880 DO_OPS(ops, error, &ap, vop_getextattr);
885 vop_setextattr(struct vop_ops *ops, struct vnode *vp, char *name,
886 struct uio *uio, struct ucred *cred)
888 struct vop_setextattr_args ap;
891 ap.a_head.a_desc = &vop_setextattr_desc;
892 ap.a_head.a_ops = ops;
898 DO_OPS(ops, error, &ap, vop_setextattr);
900 cache_update_fsmid_vp(vp);
905 vop_mountctl(struct vop_ops *ops, int op, struct file *fp,
906 const void *ctl, int ctllen, void *buf, int buflen, int *res)
908 struct vop_mountctl_args ap;
911 ap.a_head.a_desc = &vop_mountctl_desc;
912 ap.a_head.a_ops = ops;
916 ap.a_ctllen = ctllen;
918 ap.a_buflen = buflen;
921 DO_OPS(ops, error, &ap, vop_mountctl);
926 vop_markatime(struct vop_ops *ops, struct vnode *vp, struct ucred *cred)
928 struct vop_markatime_args ap;
931 ap.a_head.a_desc = &vop_markatime_desc;
932 ap.a_head.a_ops = ops;
936 DO_OPS(ops, error, &ap, vop_markatime);
943 * nresolve takes a locked ncp, a referenced but unlocked dvp, and a cred,
944 * and resolves the ncp into a positive or negative hit.
946 * The namecache is automatically adjusted by this function. The ncp
947 * is left locked on return.
950 vop_nresolve(struct vop_ops *ops, struct nchandle *nch,
951 struct vnode *dvp, struct ucred *cred)
953 struct vop_nresolve_args ap;
956 ap.a_head.a_desc = &vop_nresolve_desc;
957 ap.a_head.a_ops = ops;
962 DO_OPS(ops, error, &ap, vop_nresolve);
967 * nlookupdotdot takes an unlocked directory, referenced dvp, and looks
968 * up "..", returning a locked parent directory in *vpp. If an error
969 * occurs *vpp will be NULL.
972 vop_nlookupdotdot(struct vop_ops *ops, struct vnode *dvp,
973 struct vnode **vpp, struct ucred *cred, char **fakename)
975 struct vop_nlookupdotdot_args ap;
978 ap.a_head.a_desc = &vop_nlookupdotdot_desc;
979 ap.a_head.a_ops = ops;
983 ap.a_fakename = fakename;
985 DO_OPS(ops, error, &ap, vop_nlookupdotdot);
990 * ncreate takes a locked, resolved ncp that typically represents a negative
991 * cache hit and creates the file or node specified by the ncp, cred, and
992 * vattr. If no error occurs a locked vnode is returned in *vpp.
994 * The dvp passed in is referenced but unlocked.
996 * The namecache is automatically adjusted by this function. The ncp
997 * is left locked on return.
1000 vop_ncreate(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1001 struct vnode **vpp, struct ucred *cred, struct vattr *vap)
1003 struct vop_ncreate_args ap;
1006 ap.a_head.a_desc = &vop_ncreate_desc;
1007 ap.a_head.a_ops = ops;
1014 DO_OPS(ops, error, &ap, vop_ncreate);
1015 if (error == 0 && *vpp)
1016 cache_update_fsmid_vp(*vpp);
1021 * nmkdir takes a locked, resolved ncp that typically represents a negative
1022 * cache hit and creates the directory specified by the ncp, cred, and
1023 * vattr. If no error occurs a locked vnode is returned in *vpp.
1025 * The dvp passed in is referenced but unlocked.
1027 * The namecache is automatically adjusted by this function. The ncp
1028 * is left locked on return.
1031 vop_nmkdir(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1032 struct vnode **vpp, struct ucred *cred, struct vattr *vap)
1034 struct vop_nmkdir_args ap;
1037 ap.a_head.a_desc = &vop_nmkdir_desc;
1038 ap.a_head.a_ops = ops;
1045 DO_OPS(ops, error, &ap, vop_nmkdir);
1046 if (error == 0 && *vpp)
1047 cache_update_fsmid_vp(*vpp);
1052 * nmknod takes a locked, resolved ncp that typically represents a negative
1053 * cache hit and creates the node specified by the ncp, cred, and
1054 * vattr. If no error occurs a locked vnode is returned in *vpp.
1056 * The dvp passed in is referenced but unlocked.
1058 * The namecache is automatically adjusted by this function. The ncp
1059 * is left locked on return.
1062 vop_nmknod(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1063 struct vnode **vpp, struct ucred *cred, struct vattr *vap)
1065 struct vop_nmknod_args ap;
1068 ap.a_head.a_desc = &vop_nmknod_desc;
1069 ap.a_head.a_ops = ops;
1076 DO_OPS(ops, error, &ap, vop_nmknod);
1077 if (error == 0 && *vpp)
1078 cache_update_fsmid_vp(*vpp);
1083 * nlink takes a locked, resolved ncp that typically represents a negative
1084 * cache hit and creates the node specified by the ncp, cred, and
1085 * existing vnode. The passed vp must be locked and will remain locked
1086 * on return, as does the ncp, whether an error occurs or not.
1088 * The dvp passed in is referenced but unlocked.
1090 * The namecache is automatically adjusted by this function. The ncp
1091 * is left locked on return.
1094 vop_nlink(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1095 struct vnode *vp, struct ucred *cred)
1097 struct vop_nlink_args ap;
1100 ap.a_head.a_desc = &vop_nlink_desc;
1101 ap.a_head.a_ops = ops;
1107 DO_OPS(ops, error, &ap, vop_nlink);
1109 cache_update_fsmid(nch);
1114 * nsymlink takes a locked, resolved ncp that typically represents a negative
1115 * cache hit and creates a symbolic link based on cred, vap, and target (the
1116 * contents of the link). If no error occurs a locked vnode is returned in
1119 * The dvp passed in is referenced but unlocked.
1121 * The namecache is automatically adjusted by this function. The ncp
1122 * is left locked on return.
1125 vop_nsymlink(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1126 struct vnode **vpp, struct ucred *cred,
1127 struct vattr *vap, char *target)
1129 struct vop_nsymlink_args ap;
1132 ap.a_head.a_desc = &vop_nsymlink_desc;
1133 ap.a_head.a_ops = ops;
1139 ap.a_target = target;
1141 DO_OPS(ops, error, &ap, vop_nsymlink);
1143 cache_update_fsmid(nch);
1148 * nwhiteout takes a locked, resolved ncp that can represent a positive or
1149 * negative hit and executes the whiteout function specified in flags.
1151 * The dvp passed in is referenced but unlocked.
1153 * The namecache is automatically adjusted by this function. The ncp
1154 * is left locked on return.
1157 vop_nwhiteout(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1158 struct ucred *cred, int flags)
1160 struct vop_nwhiteout_args ap;
1163 ap.a_head.a_desc = &vop_nwhiteout_desc;
1164 ap.a_head.a_ops = ops;
1170 DO_OPS(ops, error, &ap, vop_nwhiteout);
1172 cache_update_fsmid(nch);
1177 * nremove takes a locked, resolved ncp that generally represents a
1178 * positive hit and removes the file.
1180 * The dvp passed in is referenced but unlocked.
1182 * The namecache is automatically adjusted by this function. The ncp
1183 * is left locked on return.
1186 vop_nremove(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1189 struct vop_nremove_args ap;
1192 ap.a_head.a_desc = &vop_nremove_desc;
1193 ap.a_head.a_ops = ops;
1198 DO_OPS(ops, error, &ap, vop_nremove);
1200 cache_update_fsmid(nch);
1205 * nrmdir takes a locked, resolved ncp that generally represents a
1206 * directory and removes the directory.
1208 * The dvp passed in is referenced but unlocked.
1210 * The namecache is automatically adjusted by this function. The ncp
1211 * is left locked on return.
1214 vop_nrmdir(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
1217 struct vop_nrmdir_args ap;
1220 ap.a_head.a_desc = &vop_nrmdir_desc;
1221 ap.a_head.a_ops = ops;
1226 DO_OPS(ops, error, &ap, vop_nrmdir);
1228 cache_update_fsmid(nch);
1233 * nrename takes TWO locked, resolved ncp's and the cred of the caller
1234 * and renames the source ncp to the target ncp. The target ncp may
1235 * represent a positive or negative hit.
1237 * The fdvp and tdvp passed in are referenced but unlocked.
1239 * The namecache is automatically adjusted by this function. The ncp
1240 * is left locked on return. The source ncp is typically changed to
1241 * a negative cache hit and the target ncp typically takes on the
1242 * source ncp's underlying file.
1245 vop_nrename(struct vop_ops *ops,
1246 struct nchandle *fnch, struct nchandle *tnch,
1247 struct vnode *fdvp, struct vnode *tdvp,
1250 struct vop_nrename_args ap;
1253 ap.a_head.a_desc = &vop_nrename_desc;
1254 ap.a_head.a_ops = ops;
1261 DO_OPS(ops, error, &ap, vop_nrename);
1263 cache_update_fsmid(fnch);
1264 cache_update_fsmid(tnch);
1269 /************************************************************************
1270 * PRIMARY VNODE OPERATIONS FORWARDING CALLS *
1271 ************************************************************************
1273 * These procedures are called from VFSs such as unionfs and nullfs
1274 * when they wish to forward an operation on one VFS to another. The
1275 * argument structure/message is modified and then directly passed to the
1276 * appropriate routine. This routines may also be called by initiators
1277 * who have an argument structure in hand rather then discreet arguments.
1280 vop_vnoperate_ap(struct vop_generic_args *ap)
1282 struct vop_ops *ops;
1286 error = VOCALL(ops, ap);
1292 * This routine is called by the cache coherency layer to execute the actual
1293 * VFS operation. If a journaling layer is present we call though it, else
1294 * we call the native VOP functions.
1297 vop_cache_operate_ap(struct vop_generic_args *ap)
1299 struct vop_ops *ops;
1303 if (ops->head.vv_mount->mnt_vn_journal_ops)
1304 error = VOCALL(ops->head.vv_mount->mnt_vn_journal_ops, ap);
1306 error = VOCALL(ops->head.vv_mount->mnt_vn_norm_ops, ap);
1312 * This routine is called by the journaling layer to execute the actual
1316 vop_journal_operate_ap(struct vop_generic_args *ap)
1318 struct vop_ops *ops;
1322 error = VOCALL(ops->head.vv_mount->mnt_vn_norm_ops, ap);
1328 vop_open_ap(struct vop_open_args *ap)
1332 DO_OPS(ap->a_head.a_ops, error, ap, vop_open);
1337 vop_close_ap(struct vop_close_args *ap)
1341 DO_OPS(ap->a_head.a_ops, error, ap, vop_close);
1346 vop_access_ap(struct vop_access_args *ap)
1350 DO_OPS(ap->a_head.a_ops, error, ap, vop_access);
1355 vop_getattr_ap(struct vop_getattr_args *ap)
1359 DO_OPS(ap->a_head.a_ops, error, ap, vop_getattr);
1364 vop_setattr_ap(struct vop_setattr_args *ap)
1368 DO_OPS(ap->a_head.a_ops, error, ap, vop_setattr);
1373 vop_read_ap(struct vop_read_args *ap)
1377 DO_OPS(ap->a_head.a_ops, error, ap, vop_read);
1382 vop_write_ap(struct vop_write_args *ap)
1386 DO_OPS(ap->a_head.a_ops, error, ap, vop_write);
1391 vop_ioctl_ap(struct vop_ioctl_args *ap)
1395 DO_OPS(ap->a_head.a_ops, error, ap, vop_ioctl);
1400 vop_poll_ap(struct vop_poll_args *ap)
1404 DO_OPS(ap->a_head.a_ops, error, ap, vop_poll);
1409 vop_kqfilter_ap(struct vop_kqfilter_args *ap)
1413 DO_OPS(ap->a_head.a_ops, error, ap, vop_kqfilter);
1418 vop_revoke_ap(struct vop_revoke_args *ap)
1422 DO_OPS(ap->a_head.a_ops, error, ap, vop_revoke);
1427 vop_mmap_ap(struct vop_mmap_args *ap)
1431 DO_OPS(ap->a_head.a_ops, error, ap, vop_mmap);
1436 vop_fsync_ap(struct vop_fsync_args *ap)
1440 DO_OPS(ap->a_head.a_ops, error, ap, vop_fsync);
1445 vop_readdir_ap(struct vop_readdir_args *ap)
1449 DO_OPS(ap->a_head.a_ops, error, ap, vop_readdir);
1454 vop_readlink_ap(struct vop_readlink_args *ap)
1458 DO_OPS(ap->a_head.a_ops, error, ap, vop_readlink);
1463 vop_inactive_ap(struct vop_inactive_args *ap)
1467 DO_OPS(ap->a_head.a_ops, error, ap, vop_inactive);
1472 vop_reclaim_ap(struct vop_reclaim_args *ap)
1476 DO_OPS(ap->a_head.a_ops, error, ap, vop_reclaim);
1481 vop_bmap_ap(struct vop_bmap_args *ap)
1485 DO_OPS(ap->a_head.a_ops, error, ap, vop_bmap);
1490 vop_strategy_ap(struct vop_strategy_args *ap)
1494 DO_OPS(ap->a_head.a_ops, error, ap, vop_strategy);
1499 vop_print_ap(struct vop_print_args *ap)
1503 DO_OPS(ap->a_head.a_ops, error, ap, vop_print);
1508 vop_pathconf_ap(struct vop_pathconf_args *ap)
1512 DO_OPS(ap->a_head.a_ops, error, ap, vop_pathconf);
1517 vop_advlock_ap(struct vop_advlock_args *ap)
1521 DO_OPS(ap->a_head.a_ops, error, ap, vop_advlock);
1526 vop_balloc_ap(struct vop_balloc_args *ap)
1530 DO_OPS(ap->a_head.a_ops, error, ap, vop_balloc);
1535 vop_reallocblks_ap(struct vop_reallocblks_args *ap)
1539 DO_OPS(ap->a_head.a_ops, error, ap, vop_reallocblks);
1544 vop_getpages_ap(struct vop_getpages_args *ap)
1548 DO_OPS(ap->a_head.a_ops, error, ap, vop_getpages);
1553 vop_putpages_ap(struct vop_putpages_args *ap)
1557 DO_OPS(ap->a_head.a_ops, error, ap, vop_putpages);
1562 vop_freeblks_ap(struct vop_freeblks_args *ap)
1566 DO_OPS(ap->a_head.a_ops, error, ap, vop_freeblks);
1571 vop_getacl_ap(struct vop_getacl_args *ap)
1575 DO_OPS(ap->a_head.a_ops, error, ap, vop_getacl);
1580 vop_setacl_ap(struct vop_setacl_args *ap)
1584 DO_OPS(ap->a_head.a_ops, error, ap, vop_setacl);
1589 vop_aclcheck_ap(struct vop_aclcheck_args *ap)
1593 DO_OPS(ap->a_head.a_ops, error, ap, vop_aclcheck);
1598 vop_getextattr_ap(struct vop_getextattr_args *ap)
1602 DO_OPS(ap->a_head.a_ops, error, ap, vop_getextattr);
1607 vop_setextattr_ap(struct vop_setextattr_args *ap)
1611 DO_OPS(ap->a_head.a_ops, error, ap, vop_setextattr);
1616 vop_mountctl_ap(struct vop_mountctl_args *ap)
1620 DO_OPS(ap->a_head.a_ops, error, ap, vop_mountctl);
1625 vop_markatime_ap(struct vop_markatime_args *ap)
1629 DO_OPS(ap->a_head.a_ops, error, ap, vop_markatime);
1634 vop_nresolve_ap(struct vop_nresolve_args *ap)
1638 DO_OPS(ap->a_head.a_ops, error, ap, vop_nresolve);
1643 vop_nlookupdotdot_ap(struct vop_nlookupdotdot_args *ap)
1647 DO_OPS(ap->a_head.a_ops, error, ap, vop_nlookupdotdot);
1652 vop_ncreate_ap(struct vop_ncreate_args *ap)
1656 DO_OPS(ap->a_head.a_ops, error, ap, vop_ncreate);
1661 vop_nmkdir_ap(struct vop_nmkdir_args *ap)
1665 DO_OPS(ap->a_head.a_ops, error, ap, vop_nmkdir);
1670 vop_nmknod_ap(struct vop_nmknod_args *ap)
1674 DO_OPS(ap->a_head.a_ops, error, ap, vop_nmknod);
1679 vop_nlink_ap(struct vop_nlink_args *ap)
1683 DO_OPS(ap->a_head.a_ops, error, ap, vop_nlink);
1688 vop_nsymlink_ap(struct vop_nsymlink_args *ap)
1692 DO_OPS(ap->a_head.a_ops, error, ap, vop_nsymlink);
1697 vop_nwhiteout_ap(struct vop_nwhiteout_args *ap)
1701 DO_OPS(ap->a_head.a_ops, error, ap, vop_nwhiteout);
1706 vop_nremove_ap(struct vop_nremove_args *ap)
1710 DO_OPS(ap->a_head.a_ops, error, ap, vop_nremove);
1715 vop_nrmdir_ap(struct vop_nrmdir_args *ap)
1719 DO_OPS(ap->a_head.a_ops, error, ap, vop_nrmdir);
1724 vop_nrename_ap(struct vop_nrename_args *ap)
1728 DO_OPS(ap->a_head.a_ops, error, ap, vop_nrename);