2 * Copyright (c) 2004 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
36 * The vop_ops structure vectors all access to a filesystem. It contains a
37 * fixed set of vectors.
39 * In DragonFly the ultimate goal is to thread the VFS, which means that
40 * the dispatch functions will eventually be called from the context of
41 * a management thread rather then directly called by a process. This
42 * requires us to divorce direct process dependancies (in particular ioctl
43 * and UIO's). In addition, it is our intention to implement kernel
44 * level cache management and coherency in the vop_*() interfacing
47 * The number of management threads will depend on the VFS. The idea is
48 * to give a high performance VFS such as UFS at least one thread per cpu,
49 * and a low performance VFS such as CD9660 perhaps just one thread period.
50 * Blocking issues within the management thread are up to the VFS itself,
51 * but DragonFly will introduce a layer above the VFS to handle cacheable
52 * requests without having to enter the VFS (e.g. by making attribute
53 * and VM object information a permanent fixture of the vnode structure
54 * and accessing them directly).
56 * THE VOPOPS VECTORS SHOULD NEVER BE CALLED DIRECTLY! Instead always use
57 * the kernel helper procedures vop_*() to call a vopop. The kernel
58 * helper procedure will be responsible for handling the DragonFly messaging
59 * conversion when it occurs.
62 #ifndef _SYS_VFSOPS_H_
63 #define _SYS_VFSOPS_H_
69 #include <sys/buf.h> /* buf_cmd_t */
72 #include <sys/fcntl.h> /* AT_EACCESS */
89 struct vop_generic_args {
90 struct syslink_desc *a_desc; /* command descriptor for the call */
91 struct vop_ops *a_ops; /* operations vector for the call */
95 struct vop_old_lookup_args {
96 struct vop_generic_args a_head;
99 struct componentname *a_cnp;
102 struct vop_old_create_args {
103 struct vop_generic_args a_head;
105 struct vnode **a_vpp;
106 struct componentname *a_cnp;
110 struct vop_old_whiteout_args {
111 struct vop_generic_args a_head;
113 struct componentname *a_cnp;
117 struct vop_old_mknod_args {
118 struct vop_generic_args a_head;
120 struct vnode **a_vpp;
121 struct componentname *a_cnp;
125 struct vop_open_args {
126 struct vop_generic_args a_head;
129 struct ucred *a_cred;
130 struct file *a_fp; /* optional fp for fileops override */
133 struct vop_close_args {
134 struct vop_generic_args a_head;
137 struct file *a_fp; /* optional fp for fileops override */
140 struct vop_access_args {
141 struct vop_generic_args a_head;
143 int a_mode; /* V* bitmask */
144 int a_flags; /* AT_* bitmask */
145 struct ucred *a_cred;
148 struct vop_getattr_args {
149 struct vop_generic_args a_head;
152 struct file *a_fp; /* FUSE */
155 struct vop_setattr_args {
156 struct vop_generic_args a_head;
159 struct ucred *a_cred;
160 struct file *a_fp; /* FUSE */
163 struct vop_read_args {
164 struct vop_generic_args a_head;
168 struct ucred *a_cred;
169 struct file *a_fp; /* FUSE */
172 struct vop_write_args {
173 struct vop_generic_args a_head;
177 struct ucred *a_cred;
178 struct file *a_fp; /* FUSE */
181 struct vop_ioctl_args {
182 struct vop_generic_args a_head;
187 struct ucred *a_cred;
188 struct sysmsg *a_sysmsg;
191 struct vop_poll_args {
192 struct vop_generic_args a_head;
195 struct ucred *a_cred;
198 struct vop_kqfilter_args {
199 struct vop_generic_args a_head;
204 struct vop_mmap_args {
205 struct vop_generic_args a_head;
208 struct ucred *a_cred;
211 struct vop_fsync_args {
212 struct vop_generic_args a_head;
216 struct file *a_fp; /* FUSE */
219 struct vop_old_remove_args {
220 struct vop_generic_args a_head;
223 struct componentname *a_cnp;
226 struct vop_old_link_args {
227 struct vop_generic_args a_head;
228 struct vnode *a_tdvp;
230 struct componentname *a_cnp;
233 struct vop_old_rename_args {
234 struct vop_generic_args a_head;
235 struct vnode *a_fdvp;
237 struct componentname *a_fcnp;
238 struct vnode *a_tdvp;
240 struct componentname *a_tcnp;
243 struct vop_old_mkdir_args {
244 struct vop_generic_args a_head;
246 struct vnode **a_vpp;
247 struct componentname *a_cnp;
251 struct vop_old_rmdir_args {
252 struct vop_generic_args a_head;
255 struct componentname *a_cnp;
258 struct vop_old_symlink_args {
259 struct vop_generic_args a_head;
261 struct vnode **a_vpp;
262 struct componentname *a_cnp;
267 struct vop_readdir_args {
268 struct vop_generic_args a_head;
271 struct ucred *a_cred;
275 struct file *a_fp; /* FUSE */
278 struct vop_readlink_args {
279 struct vop_generic_args a_head;
282 struct ucred *a_cred;
285 struct vop_inactive_args {
286 struct vop_generic_args a_head;
290 struct vop_reclaim_args {
291 struct vop_generic_args a_head;
295 struct vop_bmap_args {
296 struct vop_generic_args a_head;
302 buf_cmd_t a_cmd; /* BUF_CMD_READ, BUF_CMD_WRITE, etc */
305 struct vop_strategy_args {
306 struct vop_generic_args a_head;
311 struct vop_print_args {
312 struct vop_generic_args a_head;
316 struct vop_pathconf_args {
317 struct vop_generic_args a_head;
320 register_t *a_retval;
323 struct vop_advlock_args {
324 struct vop_generic_args a_head;
332 struct vop_balloc_args {
333 struct vop_generic_args a_head;
337 struct ucred *a_cred;
342 struct vop_reallocblks_args {
343 struct vop_generic_args a_head;
345 struct cluster_save *a_buflist;
348 struct vop_getpages_args {
349 struct vop_generic_args a_head;
351 struct vm_page **a_m;
354 vm_ooffset_t a_offset;
358 struct vop_putpages_args {
359 struct vop_generic_args a_head;
361 struct vm_page **a_m;
365 vm_ooffset_t a_offset;
368 struct vop_freeblks_args {
369 struct vop_generic_args a_head;
375 struct vop_getacl_args {
376 struct vop_generic_args a_head;
380 struct ucred *a_cred;
383 struct vop_setacl_args {
384 struct vop_generic_args a_head;
388 struct ucred *a_cred;
391 struct vop_aclcheck_args {
392 struct vop_generic_args a_head;
396 struct ucred *a_cred;
399 struct vop_getextattr_args {
400 struct vop_generic_args a_head;
405 struct ucred *a_cred;
408 struct vop_setextattr_args {
409 struct vop_generic_args a_head;
414 struct ucred *a_cred;
417 struct vop_mountctl_args {
418 struct vop_generic_args a_head;
429 struct vop_markatime_args {
430 struct vop_generic_args a_head;
433 struct ucred *a_cred;
441 * Warning: a_dvp is only held, not ref'd. The target must still vget()
444 struct vop_nresolve_args {
445 struct vop_generic_args a_head;
446 struct nchandle *a_nch;
448 struct ucred *a_cred;
451 struct vop_nlookupdotdot_args {
452 struct vop_generic_args a_head;
454 struct vnode **a_vpp;
455 struct ucred *a_cred;
460 * Warning: a_dvp is only held, not ref'd. The target must still vget()
463 struct vop_ncreate_args {
464 struct vop_generic_args a_head;
465 struct nchandle *a_nch; /* locked namespace */
466 struct vnode *a_dvp; /* held directory vnode */
467 struct vnode **a_vpp; /* returned refd & locked */
468 struct ucred *a_cred;
473 * Warning: a_dvp is only held, not ref'd. The target must still vget()
476 struct vop_nmkdir_args {
477 struct vop_generic_args a_head;
478 struct nchandle *a_nch; /* locked namespace */
480 struct vnode **a_vpp; /* returned refd & locked */
481 struct ucred *a_cred;
486 * Warning: a_dvp is only held, not ref'd. The target must still vget()
489 struct vop_nmknod_args {
490 struct vop_generic_args a_head;
491 struct nchandle *a_nch;
493 struct vnode **a_vpp;
494 struct ucred *a_cred;
499 * Warning: a_dvp is only held, not ref'd. The target must still vget()
502 struct vop_nlink_args {
503 struct vop_generic_args a_head;
504 struct nchandle *a_nch;
507 struct ucred *a_cred;
511 * Warning: a_dvp is only held, not ref'd. The target must still vget()
514 struct vop_nsymlink_args {
515 struct vop_generic_args a_head;
516 struct nchandle *a_nch;
518 struct vnode **a_vpp;
519 struct ucred *a_cred;
525 * Warning: a_dvp is only held, not ref'd. The target must still vget()
528 struct vop_nwhiteout_args {
529 struct vop_generic_args a_head;
530 struct nchandle *a_nch;
532 struct ucred *a_cred;
537 * Warning: a_dvp is only held, not ref'd. The target must still vget()
540 struct vop_nremove_args {
541 struct vop_generic_args a_head;
542 struct nchandle *a_nch; /* locked namespace */
544 struct ucred *a_cred;
548 * Warning: a_dvp is only held, not ref'd. The target must still vget()
551 struct vop_nrmdir_args {
552 struct vop_generic_args a_head;
553 struct nchandle *a_nch; /* locked namespace */
555 struct ucred *a_cred;
559 * Warning: a_fdvp and a_tdvp are only held, not ref'd. The target must
562 struct vop_nrename_args {
563 struct vop_generic_args a_head;
564 struct nchandle *a_fnch; /* locked namespace / from */
565 struct nchandle *a_tnch; /* locked namespace / to */
566 struct vnode *a_fdvp;
567 struct vnode *a_tdvp;
568 struct ucred *a_cred;
572 * This structure is the post-compiled VOP operations vector. vop_ops are
573 * typically per-mount entities. The first section is used by our vop_*()
574 * function wrappers to implement hooks for per-mount management functions
575 * such as journaling and cache coherency protocols. The second section is
576 * the function dispatch for the VFSs. The functions are supposed to run
577 * in the context of the VFS's thread (if it has one) and should not be
578 * directly called from random kernel code. Note that VOCALL()s are direct
579 * calls used for chaining vop_ops structures from a VFS context.
583 struct mount *vv_mount;
586 #define vop_ops_first_field vop_default
587 int (*vop_default)(struct vop_generic_args *);
588 int (*vop_unused11)(void *);
589 int (*vop_old_lookup)(struct vop_old_lookup_args *);
590 int (*vop_unused03)(void *);
591 int (*vop_old_create)(struct vop_old_create_args *);
592 int (*vop_old_whiteout)(struct vop_old_whiteout_args *);
593 int (*vop_old_mknod)(struct vop_old_mknod_args *);
594 int (*vop_open)(struct vop_open_args *);
595 int (*vop_close)(struct vop_close_args *);
596 int (*vop_access)(struct vop_access_args *);
597 int (*vop_getattr)(struct vop_getattr_args *);
598 int (*vop_setattr)(struct vop_setattr_args *);
599 int (*vop_read)(struct vop_read_args *);
600 int (*vop_write)(struct vop_write_args *);
601 int (*vop_unused04)(void *);
602 int (*vop_ioctl)(struct vop_ioctl_args *);
603 int (*vop_poll)(struct vop_poll_args *);
604 int (*vop_kqfilter)(struct vop_kqfilter_args *);
605 int (*vop_unused01)(void *); /* was vop_revoke */
606 int (*vop_mmap)(struct vop_mmap_args *);
607 int (*vop_fsync)(struct vop_fsync_args *);
608 int (*vop_old_remove)(struct vop_old_remove_args *);
609 int (*vop_old_link)(struct vop_old_link_args *);
610 int (*vop_old_rename)(struct vop_old_rename_args *);
611 int (*vop_old_mkdir)(struct vop_old_mkdir_args *);
612 int (*vop_old_rmdir)(struct vop_old_rmdir_args *);
613 int (*vop_old_symlink)(struct vop_old_symlink_args *);
614 int (*vop_readdir)(struct vop_readdir_args *);
615 int (*vop_readlink)(struct vop_readlink_args *);
616 int (*vop_inactive)(struct vop_inactive_args *);
617 int (*vop_reclaim)(struct vop_reclaim_args *);
618 int (*vop_unused09)(void *);
619 int (*vop_unused10)(void *);
620 int (*vop_bmap)(struct vop_bmap_args *);
621 int (*vop_strategy)(struct vop_strategy_args *);
622 int (*vop_print)(struct vop_print_args *);
623 int (*vop_pathconf)(struct vop_pathconf_args *);
624 int (*vop_advlock)(struct vop_advlock_args *);
625 int (*vop_balloc)(struct vop_balloc_args *);
626 int (*vop_reallocblks)(struct vop_reallocblks_args *);
627 int (*vop_getpages)(struct vop_getpages_args *);
628 int (*vop_putpages)(struct vop_putpages_args *);
629 int (*vop_freeblks)(struct vop_freeblks_args *);
630 int (*vop_unused05)(void *);
631 int (*vop_getacl)(struct vop_getacl_args *);
632 int (*vop_setacl)(struct vop_setacl_args *);
633 int (*vop_aclcheck)(struct vop_aclcheck_args *);
634 int (*vop_getextattr)(struct vop_getextattr_args *);
635 int (*vop_setextattr)(struct vop_setextattr_args *);
636 int (*vop_unused06)(void *);
637 int (*vop_unused07)(void *);
638 int (*vop_unused08)(void *);
639 int (*vop_mountctl)(struct vop_mountctl_args *);
640 int (*vop_markatime)(struct vop_markatime_args *);
642 int (*vop_nresolve)(struct vop_nresolve_args *);
643 int (*vop_nlookupdotdot)(struct vop_nlookupdotdot_args *);
644 int (*vop_ncreate)(struct vop_ncreate_args *);
645 int (*vop_nmkdir)(struct vop_nmkdir_args *);
646 int (*vop_nmknod)(struct vop_nmknod_args *);
647 int (*vop_nlink)(struct vop_nlink_args *);
648 int (*vop_nsymlink)(struct vop_nsymlink_args *);
649 int (*vop_nwhiteout)(struct vop_nwhiteout_args *);
650 int (*vop_nremove)(struct vop_nremove_args *);
651 int (*vop_nrmdir)(struct vop_nrmdir_args *);
652 int (*vop_nrename)(struct vop_nrename_args *);
653 #define vop_ops_last_field vop_nrename
657 * vop_mountctl() operations
659 #define VFSSET_DETACH 0
660 #define VFSSET_ATTACH 1
663 * Kernel VOP arguments union, suitable for malloc / embedding in other
664 * structures. The vop_args_union can hold any VOP call argument structure.
665 * Note that vu_head is broken out.
667 union vop_args_union {
668 struct vop_generic_args vu_head;
669 struct vop_generic_args vu_default;
670 struct vop_old_lookup_args vu_lookup;
671 struct vop_old_create_args vu_create;
672 struct vop_old_whiteout_args vu_whiteout;
673 struct vop_old_mknod_args vu_mknod;
674 struct vop_open_args vu_open;
675 struct vop_close_args vu_close;
676 struct vop_access_args vu_access;
677 struct vop_getattr_args vu_getattr;
678 struct vop_setattr_args vu_setattr;
679 struct vop_read_args vu_read;
680 struct vop_write_args vu_write;
681 struct vop_ioctl_args vu_ioctl;
682 struct vop_poll_args vu_poll;
683 struct vop_kqfilter_args vu_kqfilter;
684 struct vop_mmap_args vu_mmap;
685 struct vop_fsync_args vu_fsync;
686 struct vop_old_remove_args vu_remove;
687 struct vop_old_link_args vu_link;
688 struct vop_old_rename_args vu_rename;
689 struct vop_old_mkdir_args vu_mkdir;
690 struct vop_old_rmdir_args vu_rmdir;
691 struct vop_old_symlink_args vu_symlink;
692 struct vop_readdir_args vu_readdir;
693 struct vop_readlink_args vu_readlink;
694 struct vop_inactive_args vu_inactive;
695 struct vop_reclaim_args vu_reclaim;
696 struct vop_bmap_args vu_bmap;
697 struct vop_strategy_args vu_strategy;
698 struct vop_print_args vu_print;
699 struct vop_pathconf_args vu_pathconf;
700 struct vop_advlock_args vu_advlock;
701 struct vop_balloc_args vu_balloc;
702 struct vop_reallocblks_args vu_reallocblks;
703 struct vop_getpages_args vu_getpages;
704 struct vop_putpages_args vu_putpages;
705 struct vop_freeblks_args vu_freeblks;
706 struct vop_getacl_args vu_getacl;
707 struct vop_setacl_args vu_setacl;
708 struct vop_aclcheck_args vu_aclcheck;
709 struct vop_getextattr_args vu_getextattr;
710 struct vop_setextattr_args vu_setextattr;
711 struct vop_mountctl_args vu_mountctl;
712 struct vop_markatime_args vu_markatime;
714 struct vop_nresolve_args vu_nresolve;
715 struct vop_nlookupdotdot_args vu_nlookupdotdot;
716 struct vop_ncreate_args vu_ncreate;
717 struct vop_nmkdir_args vu_nmkdir;
718 struct vop_nmknod_args vu_nmknod;
719 struct vop_nlink_args vu_nlink;
720 struct vop_nsymlink_args vu_nsymlink;
721 struct vop_nwhiteout_args vu_nwhiteout;
722 struct vop_nremove_args vu_nremove;
723 struct vop_nrmdir_args vu_nrmdir;
724 struct vop_nrename_args vu_nrename;
730 * Kernel VOP call wrappers. These wrappers are responsible for wrapping
731 * the arguments in the appropriate VOP arguments structure, sending the
732 * message, and waiting for a reply. All kernel and VFS code should generally
733 * call these wrappers rather then attempt to call the operations vector
734 * routine directly in order to allow DragonFly to properly wrap the operation
735 * in a message and dispatch it to the correct thread.
737 int vop_old_lookup(struct vop_ops *ops, struct vnode *dvp,
738 struct vnode **vpp, struct componentname *cnp);
739 int vop_old_create(struct vop_ops *ops, struct vnode *dvp,
740 struct vnode **vpp, struct componentname *cnp,
742 int vop_old_whiteout(struct vop_ops *ops, struct vnode *dvp,
743 struct componentname *cnp, int flags);
744 int vop_old_mknod(struct vop_ops *ops, struct vnode *dvp,
745 struct vnode **vpp, struct componentname *cnp,
747 int vop_open(struct vop_ops *ops, struct vnode *vp, int mode,
748 struct ucred *cred, struct file *file);
749 int vop_close(struct vop_ops *ops, struct vnode *vp, int fflag,
751 int vop_access(struct vop_ops *ops, struct vnode *vp, int mode, int flags,
753 int vop_getattr(struct vop_ops *ops, struct vnode *vp, struct vattr *vap,
755 int vop_setattr(struct vop_ops *ops, struct vnode *vp, struct vattr *vap,
756 struct ucred *cred, struct file *fp);
757 int vop_read(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
758 int ioflag, struct ucred *cred, struct file *fp);
759 int vop_write(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
760 int ioflag, struct ucred *cred, struct file *fp);
761 int vop_ioctl(struct vop_ops *ops, struct vnode *vp, u_long command,
762 caddr_t data, int fflag, struct ucred *cred,
764 int vop_poll(struct vop_ops *ops, struct vnode *vp, int events,
766 int vop_kqfilter(struct vop_ops *ops, struct vnode *vp, struct knote *kn);
767 int vop_mmap(struct vop_ops *ops, struct vnode *vp, int fflags,
769 int vop_fsync(struct vop_ops *ops, struct vnode *vp, int waitfor, int flags,
771 int vop_old_remove(struct vop_ops *ops, struct vnode *dvp,
772 struct vnode *vp, struct componentname *cnp);
773 int vop_old_link(struct vop_ops *ops, struct vnode *tdvp,
774 struct vnode *vp, struct componentname *cnp);
775 int vop_old_rename(struct vop_ops *ops, struct vnode *fdvp,
776 struct vnode *fvp, struct componentname *fcnp,
777 struct vnode *tdvp, struct vnode *tvp,
778 struct componentname *tcnp);
779 int vop_old_mkdir(struct vop_ops *ops, struct vnode *dvp,
780 struct vnode **vpp, struct componentname *cnp,
782 int vop_old_rmdir(struct vop_ops *ops, struct vnode *dvp,
783 struct vnode *vp, struct componentname *cnp);
784 int vop_old_symlink(struct vop_ops *ops, struct vnode *dvp,
785 struct vnode **vpp, struct componentname *cnp,
786 struct vattr *vap, char *target);
787 int vop_readdir(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
788 struct ucred *cred, int *eofflag,
789 int *ncookies, off_t **cookies, struct file *fp);
790 int vop_readlink(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
792 int vop_inactive(struct vop_ops *ops, struct vnode *vp);
793 int vop_reclaim(struct vop_ops *ops, struct vnode *vp);
794 int vop_bmap(struct vop_ops *ops, struct vnode *vp, off_t loffset,
795 off_t *doffsetp, int *runp, int *runb, buf_cmd_t cmd);
796 int vop_strategy(struct vop_ops *ops, struct vnode *vp, struct bio *bio);
797 int vop_print(struct vop_ops *ops, struct vnode *vp);
798 int vop_pathconf(struct vop_ops *ops, struct vnode *vp, int name,
800 int vop_advlock(struct vop_ops *ops, struct vnode *vp, caddr_t id, int op,
801 struct flock *fl, int flags);
802 int vop_balloc(struct vop_ops *ops, struct vnode *vp, off_t startoffset,
803 int size, struct ucred *cred, int flags,
805 int vop_reallocblks(struct vop_ops *ops, struct vnode *vp,
806 struct cluster_save *buflist);
807 int vop_getpages(struct vop_ops *ops, struct vnode *vp, struct vm_page **m,
808 int count, int reqpage, vm_ooffset_t offset, int seqaccess);
809 int vop_putpages(struct vop_ops *ops, struct vnode *vp, struct vm_page **m,
810 int count, int sync, int *rtvals, vm_ooffset_t offset);
811 int vop_freeblks(struct vop_ops *ops, struct vnode *vp,
812 off_t offset, int length);
813 int vop_getacl(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
814 struct acl *aclp, struct ucred *cred);
815 int vop_setacl(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
816 struct acl *aclp, struct ucred *cred);
817 int vop_aclcheck(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
818 struct acl *aclp, struct ucred *cred);
820 int vop_getextattr(struct vop_ops *ops, struct vnode *vp, int attrnamespace,
821 char *attrname, struct uio *uio, struct ucred *cred);
822 int vop_setextattr(struct vop_ops *ops, struct vnode *vp, int attrnamespace,
823 char *attrname, struct uio *uio, struct ucred *cred);
824 int vop_mountctl(struct vop_ops *ops, struct vnode *vp, int op,
825 struct file *fp, const void *ctl, int ctllen,
826 void *buf, int buflen, int *res);
827 int vop_markatime(struct vop_ops *ops, struct vnode *vp, struct ucred *cred);
828 int vop_nresolve(struct vop_ops *ops, struct nchandle *nch,
829 struct vnode *dvp, struct ucred *cred);
830 int vop_nlookupdotdot(struct vop_ops *ops, struct vnode *dvp,
831 struct vnode **vpp, struct ucred *cred, char **fakename);
832 int vop_ncreate(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
833 struct vnode **vpp, struct ucred *cred, struct vattr *vap);
834 int vop_nmkdir(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
835 struct vnode **vpp, struct ucred *cred, struct vattr *vap);
836 int vop_nmknod(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
837 struct vnode **vpp, struct ucred *cred, struct vattr *vap);
838 int vop_nlink(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
839 struct vnode *vp, struct ucred *cred);
840 int vop_nsymlink(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
841 struct vnode **vpp, struct ucred *cred,
842 struct vattr *vap, char *target);
843 int vop_nwhiteout(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
844 struct ucred *cred, int flags);
845 int vop_nremove(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
847 int vop_nrmdir(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
849 int vop_nrename(struct vop_ops *ops,
850 struct nchandle *fnch, struct nchandle *tnch,
851 struct vnode *fdvp, struct vnode *tdvp,
855 * Kernel VOP forwarding wrappers. These are called when a VFS such as
856 * nullfs needs to push down into another VFS, changing the
857 * a_ops pointer and consequentially necessitating additional
860 * Note that this is different from vop_ops chaining within the same
861 * filesystem. When a filesystem chains a vop_ops it just uses VOCALLs.
863 int vop_vnoperate_ap(struct vop_generic_args *ap);
864 int vop_cache_operate_ap(struct vop_generic_args *ap);
865 int vop_journal_operate_ap(struct vop_generic_args *ap);
866 int vop_old_lookup_ap(struct vop_old_lookup_args *ap);
867 int vop_old_create_ap(struct vop_old_create_args *ap);
868 int vop_old_whiteout_ap(struct vop_old_whiteout_args *ap);
869 int vop_old_mknod_ap(struct vop_old_mknod_args *ap);
870 int vop_open_ap(struct vop_open_args *ap);
871 int vop_close_ap(struct vop_close_args *ap);
872 int vop_access_ap(struct vop_access_args *ap);
873 int vop_getattr_ap(struct vop_getattr_args *ap);
874 int vop_setattr_ap(struct vop_setattr_args *ap);
875 int vop_read_ap(struct vop_read_args *ap);
876 int vop_write_ap(struct vop_write_args *ap);
877 int vop_ioctl_ap(struct vop_ioctl_args *ap);
878 int vop_poll_ap(struct vop_poll_args *ap);
879 int vop_kqfilter_ap(struct vop_kqfilter_args *ap);
880 int vop_mmap_ap(struct vop_mmap_args *ap);
881 int vop_fsync_ap(struct vop_fsync_args *ap);
882 int vop_old_remove_ap(struct vop_old_remove_args *ap);
883 int vop_old_link_ap(struct vop_old_link_args *ap);
884 int vop_old_rename_ap(struct vop_old_rename_args *ap);
885 int vop_old_mkdir_ap(struct vop_old_mkdir_args *ap);
886 int vop_old_rmdir_ap(struct vop_old_rmdir_args *ap);
887 int vop_old_symlink_ap(struct vop_old_symlink_args *ap);
888 int vop_readdir_ap(struct vop_readdir_args *ap);
889 int vop_readlink_ap(struct vop_readlink_args *ap);
890 int vop_inactive_ap(struct vop_inactive_args *ap);
891 int vop_reclaim_ap(struct vop_reclaim_args *ap);
892 int vop_bmap_ap(struct vop_bmap_args *ap);
893 int vop_strategy_ap(struct vop_strategy_args *ap);
894 int vop_print_ap(struct vop_print_args *ap);
895 int vop_pathconf_ap(struct vop_pathconf_args *ap);
896 int vop_advlock_ap(struct vop_advlock_args *ap);
897 int vop_balloc_ap(struct vop_balloc_args *ap);
898 int vop_reallocblks_ap(struct vop_reallocblks_args *ap);
899 int vop_getpages_ap(struct vop_getpages_args *ap);
900 int vop_putpages_ap(struct vop_putpages_args *ap);
901 int vop_freeblks_ap(struct vop_freeblks_args *ap);
902 int vop_getacl_ap(struct vop_getacl_args *ap);
903 int vop_setacl_ap(struct vop_setacl_args *ap);
904 int vop_aclcheck_ap(struct vop_aclcheck_args *ap);
905 int vop_getextattr_ap(struct vop_getextattr_args *ap);
906 int vop_setextattr_ap(struct vop_setextattr_args *ap);
907 int vop_mountctl_ap(struct vop_mountctl_args *ap);
908 int vop_markatime_ap(struct vop_markatime_args *ap);
910 int vop_nresolve_ap(struct vop_nresolve_args *ap);
911 int vop_nlookupdotdot_ap(struct vop_nlookupdotdot_args *ap);
912 int vop_ncreate_ap(struct vop_ncreate_args *ap);
913 int vop_nmkdir_ap(struct vop_nmkdir_args *ap);
914 int vop_nmknod_ap(struct vop_nmknod_args *ap);
915 int vop_nlink_ap(struct vop_nlink_args *ap);
916 int vop_nsymlink_ap(struct vop_nsymlink_args *ap);
917 int vop_nwhiteout_ap(struct vop_nwhiteout_args *ap);
918 int vop_nremove_ap(struct vop_nremove_args *ap);
919 int vop_nrmdir_ap(struct vop_nrmdir_args *ap);
920 int vop_nrename_ap(struct vop_nrename_args *ap);
923 * VOP operations descriptor. This is used by the vop_ops compiler
924 * to convert VFS vector arrays (typically in vfs/blah/blah_vnops.c)
925 * into a vop_ops operations vector.
927 extern struct syslink_desc vop_default_desc;
928 extern struct syslink_desc vop_old_lookup_desc;
929 extern struct syslink_desc vop_old_create_desc;
930 extern struct syslink_desc vop_old_whiteout_desc;
931 extern struct syslink_desc vop_old_mknod_desc;
932 extern struct syslink_desc vop_open_desc;
933 extern struct syslink_desc vop_close_desc;
934 extern struct syslink_desc vop_access_desc;
935 extern struct syslink_desc vop_getattr_desc;
936 extern struct syslink_desc vop_setattr_desc;
937 extern struct syslink_desc vop_read_desc;
938 extern struct syslink_desc vop_write_desc;
939 extern struct syslink_desc vop_ioctl_desc;
940 extern struct syslink_desc vop_poll_desc;
941 extern struct syslink_desc vop_kqfilter_desc;
942 extern struct syslink_desc vop_mmap_desc;
943 extern struct syslink_desc vop_fsync_desc;
944 extern struct syslink_desc vop_old_remove_desc;
945 extern struct syslink_desc vop_old_link_desc;
946 extern struct syslink_desc vop_old_rename_desc;
947 extern struct syslink_desc vop_old_mkdir_desc;
948 extern struct syslink_desc vop_old_rmdir_desc;
949 extern struct syslink_desc vop_old_symlink_desc;
950 extern struct syslink_desc vop_readdir_desc;
951 extern struct syslink_desc vop_readlink_desc;
952 extern struct syslink_desc vop_inactive_desc;
953 extern struct syslink_desc vop_reclaim_desc;
954 extern struct syslink_desc vop_bmap_desc;
955 extern struct syslink_desc vop_strategy_desc;
956 extern struct syslink_desc vop_print_desc;
957 extern struct syslink_desc vop_pathconf_desc;
958 extern struct syslink_desc vop_advlock_desc;
959 extern struct syslink_desc vop_balloc_desc;
960 extern struct syslink_desc vop_reallocblks_desc;
961 extern struct syslink_desc vop_getpages_desc;
962 extern struct syslink_desc vop_putpages_desc;
963 extern struct syslink_desc vop_freeblks_desc;
964 extern struct syslink_desc vop_getacl_desc;
965 extern struct syslink_desc vop_setacl_desc;
966 extern struct syslink_desc vop_aclcheck_desc;
967 extern struct syslink_desc vop_getextattr_desc;
968 extern struct syslink_desc vop_setextattr_desc;
969 extern struct syslink_desc vop_mountctl_desc;
970 extern struct syslink_desc vop_markatime_desc;
972 extern struct syslink_desc vop_nresolve_desc;
973 extern struct syslink_desc vop_nlookupdotdot_desc;
974 extern struct syslink_desc vop_ncreate_desc;
975 extern struct syslink_desc vop_nmkdir_desc;
976 extern struct syslink_desc vop_nmknod_desc;
977 extern struct syslink_desc vop_nlink_desc;
978 extern struct syslink_desc vop_nsymlink_desc;
979 extern struct syslink_desc vop_nwhiteout_desc;
980 extern struct syslink_desc vop_nremove_desc;
981 extern struct syslink_desc vop_nrmdir_desc;
982 extern struct syslink_desc vop_nrename_desc;
987 * VOP_*() convenience macros extract the operations vector and make the
990 #define VOP_OPEN(vp, mode, cred, fp) \
991 vop_open(*(vp)->v_ops, vp, mode, cred, fp)
992 #define VOP_CLOSE(vp, fflag, fp) \
993 vop_close(*(vp)->v_ops, vp, fflag, fp)
994 #define VOP_ACCESS(vp, mode, cred) \
995 vop_access(*(vp)->v_ops, vp, mode, 0, cred)
996 #define VOP_EACCESS(vp, mode, cred) \
997 vop_access(*(vp)->v_ops, vp, mode, AT_EACCESS, cred)
998 #define VOP_ACCESS_FLAGS(vp, mode, flags, cred) \
999 vop_access(*(vp)->v_ops, vp, mode, flags, cred)
1000 #define VOP_GETATTR_FP(vp, vap, fp) \
1001 vop_getattr(*(vp)->v_ops, vp, vap, fp) /* FUSE */
1002 #define VOP_GETATTR(vp, vap) \
1003 VOP_GETATTR_FP(vp, vap, NULL)
1004 #define VOP_SETATTR_FP(vp, vap, cred, fp) \
1005 vop_setattr(*(vp)->v_ops, vp, vap, cred, fp) /* FUSE */
1006 #define VOP_SETATTR(vp, vap, cred) \
1007 VOP_SETATTR_FP(vp, vap, cred, NULL)
1008 #define VOP_READ_FP(vp, uio, ioflag, cred, fp) \
1009 vop_read(*(vp)->v_ops, vp, uio, ioflag, cred, fp) /* FUSE */
1010 #define VOP_READ(vp, uio, ioflag, cred) \
1011 VOP_READ_FP(vp, uio, ioflag, cred, NULL)
1012 #define VOP_WRITE_FP(vp, uio, ioflag, cred, fp) \
1013 vop_write(*(vp)->v_ops, vp, uio, ioflag, cred, fp) /* FUSE */
1014 #define VOP_WRITE(vp, uio, ioflag, cred) \
1015 VOP_WRITE_FP(vp, uio, ioflag, cred, NULL)
1016 #define VOP_IOCTL(vp, command, data, fflag, cred, msg) \
1017 vop_ioctl(*(vp)->v_ops, vp, command, data, fflag, cred, msg)
1018 #define VOP_POLL(vp, events, cred) \
1019 vop_poll(*(vp)->v_ops, vp, events, cred)
1020 #define VOP_KQFILTER(vp, kn) \
1021 vop_kqfilter(*(vp)->v_ops, vp, kn)
1022 #define VOP_MMAP(vp, fflags, cred) \
1023 vop_mmap(*(vp)->v_ops, vp, fflags, cred)
1024 #define VOP_FSYNC_FP(vp, waitfor, flags, fp) \
1025 vop_fsync(*(vp)->v_ops, vp, waitfor, flags, fp) /* FUSE*/
1026 #define VOP_FSYNC(vp, waitfor, flags) \
1027 VOP_FSYNC_FP(vp, waitfor, flags, NULL)
1028 #define VOP_READDIR_FP(vp, uio, cred, eofflag, ncookies, cookies, fp) \
1029 vop_readdir(*(vp)->v_ops, vp, uio, cred, eofflag, ncookies, cookies, fp) /* FUSE */
1030 #define VOP_READDIR(vp, uio, cred, eofflag, ncookies, cookies) \
1031 VOP_READDIR_FP(vp, uio, cred, eofflag, ncookies, cookies, NULL)
1032 #define VOP_READLINK(vp, uio, cred) \
1033 vop_readlink(*(vp)->v_ops, vp, uio, cred)
1034 #define VOP_INACTIVE(vp) \
1035 vop_inactive(*(vp)->v_ops, vp)
1036 #define VOP_RECLAIM(vp) \
1037 vop_reclaim(*(vp)->v_ops, vp)
1038 #define VOP_BMAP(vp, loff, doffp, runp, runb, cmd) \
1039 vop_bmap(*(vp)->v_ops, vp, loff, doffp, runp, runb, cmd)
1040 #define VOP_PRINT(vp) \
1041 vop_print(*(vp)->v_ops, vp)
1042 #define VOP_PATHCONF(vp, name, retval) \
1043 vop_pathconf(*(vp)->v_ops, vp, name, retval)
1044 #define VOP_ADVLOCK(vp, id, op, fl, flags) \
1045 vop_advlock(*(vp)->v_ops, vp, id, op, fl, flags)
1046 #define VOP_BALLOC(vp, offset, size, cred, flags, bpp) \
1047 vop_balloc(*(vp)->v_ops, vp, offset, size, cred, flags, bpp)
1048 #define VOP_REALLOCBLKS(vp, buflist) \
1049 vop_reallocblks(*(vp)->v_ops, vp, buflist)
1050 #define VOP_GETPAGES(vp, m, count, reqpage, off, seqaccess) \
1051 vop_getpages(*(vp)->v_ops, vp, m, count, reqpage, off, seqaccess)
1052 #define VOP_PUTPAGES(vp, m, count, sync, rtvals, off) \
1053 vop_putpages(*(vp)->v_ops, vp, m, count, sync, rtvals, off)
1054 #define VOP_FREEBLKS(vp, offset, length) \
1055 vop_freeblks(*(vp)->v_ops, vp, offset, length)
1056 #define VOP_GETACL(vp, type, aclp, cred) \
1057 vop_getacl(*(vp)->v_ops, vp, type, aclp, cred)
1058 #define VOP_SETACL(vp, type, aclp, cred) \
1059 vop_setacl(*(vp)->v_ops, vp, type, aclp, cred)
1060 #define VOP_ACLCHECK(vp, type, aclp, cred) \
1061 vop_aclcheck(*(vp)->v_ops, vp, type, aclp, cred)
1062 #define VOP_GETEXTATTR(vp, attrnamespace, attrname, uio, cred) \
1063 vop_getextattr(*(vp)->v_ops, vp, attrnamespace, attrname, uio, cred)
1064 #define VOP_SETEXTATTR(vp, attrnamespace, attrname, uio, cred) \
1065 vop_setextattr(*(vp)->v_ops, vp, attrnamespace, attrname, uio, cred)
1066 #define VOP_MARKATIME(vp, cred) \
1067 vop_markatime(*(vp)->v_ops, vp, cred)
1068 /* no VOP_VFSSET() */
1069 /* VOP_STRATEGY - does not exist, use vn_strategy() */
1072 * 'OLD' VOP calls. These calls may only be made by the new API
1073 * compatibility functions in kern/vfs_default.c. Attempting to
1074 * call these functions directly will confuse the namecache. These
1075 * calls are deprecated and being removed from the system and from
1078 #define VOP_OLD_LOOKUP(dvp, vpp, cnp) \
1079 vop_old_lookup(*(dvp)->v_ops, dvp, vpp, cnp)
1080 #define VOP_OLD_CREATE(dvp, vpp, cnp, vap) \
1081 vop_old_create(*(dvp)->v_ops, dvp, vpp, cnp, vap)
1082 #define VOP_OLD_MKDIR(dvp, vpp, cnp, vap) \
1083 vop_old_mkdir(*(dvp)->v_ops, dvp, vpp, cnp, vap)
1084 #define VOP_OLD_MKNOD(dvp, vpp, cnp, vap) \
1085 vop_old_mknod(*(dvp)->v_ops, dvp, vpp, cnp, vap)
1086 #define VOP_OLD_LINK(tdvp, vp, cnp) \
1087 vop_old_link(*(tdvp)->v_ops, tdvp, vp, cnp)
1088 #define VOP_OLD_SYMLINK(dvp, vpp, cnp, vap, target) \
1089 vop_old_symlink(*(dvp)->v_ops, dvp, vpp, cnp, vap, target)
1090 #define VOP_OLD_WHITEOUT(dvp, cnp, flags) \
1091 vop_old_whiteout(*(dvp)->v_ops, dvp, cnp, flags)
1092 #define VOP_OLD_RENAME(fdvp, fvp, fcnp, tdvp, tvp, tcnp) \
1093 vop_old_rename(*(fdvp)->v_ops, fdvp, fvp, fcnp, tdvp, tvp, tcnp)
1094 #define VOP_OLD_RMDIR(dvp, vp, cnp) \
1095 vop_old_rmdir(*(dvp)->v_ops, dvp, vp, cnp)
1096 #define VOP_OLD_REMOVE(dvp, vp, cnp) \
1097 vop_old_remove(*(dvp)->v_ops, dvp, vp, cnp)
1100 * 'NEW' VOP calls. These calls use namespaces as an operational basis
1101 * rather then vnodes and replace the OLD calls. Eventually all VFS's
1102 * will support these calls. Those that do not fall through to compatibility
1103 * code in kern/vfs_default which does the magic required to call the old
1106 #define VOP_NRESOLVE(nch, dvp, cred) \
1107 vop_nresolve((nch)->mount->mnt_vn_use_ops, nch, dvp, cred)
1108 #define VOP_NLOOKUPDOTDOT(dvp, vpp, cred, fakename) \
1109 vop_nlookupdotdot(*(dvp)->v_ops, dvp, vpp, cred, fakename)
1110 #define VOP_NCREATE(nch, dvp, vpp, cred, vap) \
1111 vop_ncreate((nch)->mount->mnt_vn_use_ops, nch, dvp, vpp, cred, vap)
1112 #define VOP_NMKDIR(nch, dvp, vpp, cred, vap) \
1113 vop_nmkdir((nch)->mount->mnt_vn_use_ops, nch, dvp, vpp, cred, vap)
1114 #define VOP_NMKNOD(nch, dvp, vpp, cred, vap) \
1115 vop_nmknod((nch)->mount->mnt_vn_use_ops, nch, dvp, vpp, cred, vap)
1116 #define VOP_NLINK(nch, dvp, vp, cred) \
1117 vop_nlink((nch)->mount->mnt_vn_use_ops, nch, dvp, vp, cred)
1118 #define VOP_NSYMLINK(nch, dvp, vpp, cred, vap, target) \
1119 vop_nsymlink((nch)->mount->mnt_vn_use_ops, nch, dvp, vpp, cred, vap, target)
1120 #define VOP_NWHITEOUT(nch, dvp, cred, flags) \
1121 vop_nwhiteout((nch)->mount->mnt_vn_use_ops, nch, dvp, cred, flags)
1122 #define VOP_NRENAME(fnch, tnch, fdvp, tdvp, cred) \
1123 vop_nrename((fnch)->mount->mnt_vn_use_ops, fnch, tnch, fdvp, tdvp, cred)
1124 #define VOP_NRMDIR(nch, dvp, cred) \
1125 vop_nrmdir((nch)->mount->mnt_vn_use_ops, nch, dvp, cred)
1126 #define VOP_NREMOVE(nch, dvp, cred) \
1127 vop_nremove((nch)->mount->mnt_vn_use_ops, nch, dvp, cred)