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
34 * $DragonFly: src/sys/sys/vfsops.h,v 1.19 2006/04/25 22:11:29 dillon Exp $
38 * The vop_ops structure vectors all access to a filesystem. It contains a
39 * fixed set of vectors which are 'compiled' by the vnodeopv_entry_desc
40 * array that is typically declared in "vfs/blah/blah_vnops.c".
42 * In DragonFly the ultimate goal is to thread the VFS, which means that
43 * the dispatch functions will eventually be called from the context of
44 * a management thread rather then directly called by a process. This
45 * requires us to divorce direct process dependancies (in particular ioctl
46 * and UIO's). In addition, it is our intention to implement kernel
47 * level cache management and coherency in the vop_*() interfacing
50 * The number of management threads will depend on the VFS. The idea is
51 * to give a high performance VFS such as UFS at least one thread per cpu,
52 * and a low performance VFS such as CD9660 perhaps just one thread period.
53 * Blocking issues within the management thread are up to the VFS itself,
54 * but DragonFly will introduce a layer above the VFS to handle cacheable
55 * requests without having to enter the VFS (e.g. by making attribute
56 * and VM object information a permanent fixture of the vnode structure
57 * and accessing them directly).
59 * THE VOPOPS VECTORS SHOULD NEVER BE CALLED DIRECTLY! Instead always use
60 * the kernel helper procedures vop_*() to call a vopop. The kernel
61 * helper procedure will be responsible for handling the DragonFly messaging
62 * conversion when it occurs.
65 #ifndef _SYS_VFSOPS_H_
66 #define _SYS_VFSOPS_H_
85 struct vop_generic_args {
86 struct vnodeop_desc *a_desc; /* command descriptor for the call */
87 struct vop_ops *a_ops; /* operations vector for the call */
91 struct vop_islocked_args {
92 struct vop_generic_args a_head;
97 struct vop_old_lookup_args {
98 struct vop_generic_args a_head;
100 struct vnode **a_vpp;
101 struct componentname *a_cnp;
104 struct vop_old_create_args {
105 struct vop_generic_args a_head;
107 struct vnode **a_vpp;
108 struct componentname *a_cnp;
112 struct vop_old_whiteout_args {
113 struct vop_generic_args a_head;
115 struct componentname *a_cnp;
119 struct vop_old_mknod_args {
120 struct vop_generic_args a_head;
122 struct vnode **a_vpp;
123 struct componentname *a_cnp;
127 struct vop_open_args {
128 struct vop_generic_args a_head;
131 struct ucred *a_cred;
132 struct file *a_fp; /* optional fp for fileops override */
136 struct vop_close_args {
137 struct vop_generic_args a_head;
143 struct vop_access_args {
144 struct vop_generic_args a_head;
147 struct ucred *a_cred;
151 struct vop_getattr_args {
152 struct vop_generic_args a_head;
158 struct vop_setattr_args {
159 struct vop_generic_args a_head;
162 struct ucred *a_cred;
166 struct vop_read_args {
167 struct vop_generic_args a_head;
171 struct ucred *a_cred;
174 struct vop_write_args {
175 struct vop_generic_args a_head;
179 struct ucred *a_cred;
182 struct vop_ioctl_args {
183 struct vop_generic_args a_head;
188 struct ucred *a_cred;
192 struct vop_poll_args {
193 struct vop_generic_args a_head;
196 struct ucred *a_cred;
200 struct vop_kqfilter_args {
201 struct vop_generic_args a_head;
206 struct vop_revoke_args {
207 struct vop_generic_args a_head;
212 struct vop_mmap_args {
213 struct vop_generic_args a_head;
216 struct ucred *a_cred;
220 struct vop_fsync_args {
221 struct vop_generic_args a_head;
227 struct vop_old_remove_args {
228 struct vop_generic_args a_head;
231 struct componentname *a_cnp;
234 struct vop_old_link_args {
235 struct vop_generic_args a_head;
236 struct vnode *a_tdvp;
238 struct componentname *a_cnp;
241 struct vop_old_rename_args {
242 struct vop_generic_args a_head;
243 struct vnode *a_fdvp;
245 struct componentname *a_fcnp;
246 struct vnode *a_tdvp;
248 struct componentname *a_tcnp;
251 struct vop_old_mkdir_args {
252 struct vop_generic_args a_head;
254 struct vnode **a_vpp;
255 struct componentname *a_cnp;
259 struct vop_old_rmdir_args {
260 struct vop_generic_args a_head;
263 struct componentname *a_cnp;
266 struct vop_old_symlink_args {
267 struct vop_generic_args a_head;
269 struct vnode **a_vpp;
270 struct componentname *a_cnp;
275 struct vop_readdir_args {
276 struct vop_generic_args a_head;
279 struct ucred *a_cred;
285 struct vop_readlink_args {
286 struct vop_generic_args a_head;
289 struct ucred *a_cred;
292 struct vop_inactive_args {
293 struct vop_generic_args a_head;
298 struct vop_reclaim_args {
299 struct vop_generic_args a_head;
304 struct vop_lock_args {
305 struct vop_generic_args a_head;
311 struct vop_unlock_args {
312 struct vop_generic_args a_head;
318 struct vop_bmap_args {
319 struct vop_generic_args a_head;
322 struct vnode **a_vpp;
328 struct vop_strategy_args {
329 struct vop_generic_args a_head;
334 struct vop_print_args {
335 struct vop_generic_args a_head;
339 struct vop_pathconf_args {
340 struct vop_generic_args a_head;
343 register_t *a_retval;
346 struct vop_advlock_args {
347 struct vop_generic_args a_head;
355 struct vop_balloc_args {
356 struct vop_generic_args a_head;
360 struct ucred *a_cred;
365 struct vop_reallocblks_args {
366 struct vop_generic_args a_head;
368 struct cluster_save *a_buflist;
371 struct vop_getpages_args {
372 struct vop_generic_args a_head;
374 struct vm_page **a_m;
377 vm_ooffset_t a_offset;
380 struct vop_putpages_args {
381 struct vop_generic_args a_head;
383 struct vm_page **a_m;
387 vm_ooffset_t a_offset;
390 struct vop_freeblks_args {
391 struct vop_generic_args a_head;
397 struct vop_bwrite_args {
398 struct vop_generic_args a_head;
403 struct vop_getacl_args {
404 struct vop_generic_args a_head;
408 struct ucred *a_cred;
412 struct vop_setacl_args {
413 struct vop_generic_args a_head;
417 struct ucred *a_cred;
421 struct vop_aclcheck_args {
422 struct vop_generic_args a_head;
426 struct ucred *a_cred;
430 struct vop_getextattr_args {
431 struct vop_generic_args a_head;
435 struct ucred *a_cred;
439 struct vop_setextattr_args {
440 struct vop_generic_args a_head;
444 struct ucred *a_cred;
448 struct vop_mountctl_args {
449 struct vop_generic_args a_head;
462 struct vop_nresolve_args {
463 struct vop_generic_args a_head;
464 struct namecache *a_ncp;
465 struct ucred *a_cred;
468 struct vop_nlookupdotdot_args {
469 struct vop_generic_args a_head;
471 struct vnode **a_vpp;
472 struct ucred *a_cred;
475 struct vop_ncreate_args {
476 struct vop_generic_args a_head;
477 struct namecache *a_ncp; /* locked namespace */
478 struct vnode **a_vpp; /* returned refd & locked */
479 struct ucred *a_cred;
483 struct vop_nmkdir_args {
484 struct vop_generic_args a_head;
485 struct namecache *a_ncp; /* locked namespace */
486 struct vnode **a_vpp; /* returned refd & locked */
487 struct ucred *a_cred;
491 struct vop_nmknod_args {
492 struct vop_generic_args a_head;
493 struct namecache *a_ncp;
494 struct vnode **a_vpp;
495 struct ucred *a_cred;
499 struct vop_nlink_args {
500 struct vop_generic_args a_head;
501 struct namecache *a_ncp;
503 struct ucred *a_cred;
506 struct vop_nsymlink_args {
507 struct vop_generic_args a_head;
508 struct namecache *a_ncp;
509 struct vnode **a_vpp;
510 struct ucred *a_cred;
515 struct vop_nwhiteout_args {
516 struct vop_generic_args a_head;
517 struct namecache *a_ncp;
518 struct ucred *a_cred;
522 struct vop_nremove_args {
523 struct vop_generic_args a_head;
524 struct namecache *a_ncp; /* locked namespace */
525 struct ucred *a_cred;
528 struct vop_nrmdir_args {
529 struct vop_generic_args a_head;
530 struct namecache *a_ncp; /* locked namespace */
531 struct ucred *a_cred;
534 struct vop_nrename_args {
535 struct vop_generic_args a_head;
536 struct namecache *a_fncp; /* locked namespace / from */
537 struct namecache *a_tncp; /* locked namespace / to */
538 struct ucred *a_cred;
542 * This structure is the post-compiled VOP operations vector. vop_ops are
543 * typically per-mount entities. The first section is used by our vop_*()
544 * function wrappers to implement hooks for per-mount management functions
545 * such as journaling and cache coherency protocols. The second section is
546 * the function dispatch for the VFSs. The functions are supposed to run
547 * in the context of the VFS's thread (if it has one) and should not be
548 * directly called from random kernel code. Note that VOCALL()s are direct
549 * calls used for chaining vop_ops structures from a VFS context.
552 struct vop_ops *vv_new; /* vfs_recalc_vnodeops() only */
553 struct mount *vv_mount;
555 int vv_flags; /* see VVF_* flags below */
560 int vv_reserved[62]; /* (temporary) reduce recompile pain */
562 #define vop_ops_first_field vop_default
563 int (*vop_default)(struct vop_generic_args *);
564 int (*vop_islocked)(struct vop_islocked_args *);
565 int (*vop_old_lookup)(struct vop_old_lookup_args *);
566 int (*vop_unused03)(void *);
567 int (*vop_old_create)(struct vop_old_create_args *);
568 int (*vop_old_whiteout)(struct vop_old_whiteout_args *);
569 int (*vop_old_mknod)(struct vop_old_mknod_args *);
570 int (*vop_open)(struct vop_open_args *);
571 int (*vop_close)(struct vop_close_args *);
572 int (*vop_access)(struct vop_access_args *);
573 int (*vop_getattr)(struct vop_getattr_args *);
574 int (*vop_setattr)(struct vop_setattr_args *);
575 int (*vop_read)(struct vop_read_args *);
576 int (*vop_write)(struct vop_write_args *);
577 int (*vop_unused04)(void *);
578 int (*vop_ioctl)(struct vop_ioctl_args *);
579 int (*vop_poll)(struct vop_poll_args *);
580 int (*vop_kqfilter)(struct vop_kqfilter_args *);
581 int (*vop_revoke)(struct vop_revoke_args *);
582 int (*vop_mmap)(struct vop_mmap_args *);
583 int (*vop_fsync)(struct vop_fsync_args *);
584 int (*vop_old_remove)(struct vop_old_remove_args *);
585 int (*vop_old_link)(struct vop_old_link_args *);
586 int (*vop_old_rename)(struct vop_old_rename_args *);
587 int (*vop_old_mkdir)(struct vop_old_mkdir_args *);
588 int (*vop_old_rmdir)(struct vop_old_rmdir_args *);
589 int (*vop_old_symlink)(struct vop_old_symlink_args *);
590 int (*vop_readdir)(struct vop_readdir_args *);
591 int (*vop_readlink)(struct vop_readlink_args *);
592 int (*vop_inactive)(struct vop_inactive_args *);
593 int (*vop_reclaim)(struct vop_reclaim_args *);
594 int (*vop_lock)(struct vop_lock_args *);
595 int (*vop_unlock)(struct vop_unlock_args *);
596 int (*vop_bmap)(struct vop_bmap_args *);
597 int (*vop_strategy)(struct vop_strategy_args *);
598 int (*vop_print)(struct vop_print_args *);
599 int (*vop_pathconf)(struct vop_pathconf_args *);
600 int (*vop_advlock)(struct vop_advlock_args *);
601 int (*vop_balloc)(struct vop_balloc_args *);
602 int (*vop_reallocblks)(struct vop_reallocblks_args *);
603 int (*vop_getpages)(struct vop_getpages_args *);
604 int (*vop_putpages)(struct vop_putpages_args *);
605 int (*vop_freeblks)(struct vop_freeblks_args *);
606 int (*vop_bwrite)(struct vop_bwrite_args *);
607 int (*vop_getacl)(struct vop_getacl_args *);
608 int (*vop_setacl)(struct vop_setacl_args *);
609 int (*vop_aclcheck)(struct vop_aclcheck_args *);
610 int (*vop_getextattr)(struct vop_getextattr_args *);
611 int (*vop_setextattr)(struct vop_setextattr_args *);
612 int (*vop_unused05)(void *);
613 int (*vop_unused06)(void *);
614 int (*vop_unused07)(void *);
615 int (*vop_mountctl)(struct vop_mountctl_args *);
617 int (*vop_nresolve)(struct vop_nresolve_args *);
618 int (*vop_nlookupdotdot)(struct vop_nlookupdotdot_args *);
619 int (*vop_ncreate)(struct vop_ncreate_args *);
620 int (*vop_nmkdir)(struct vop_nmkdir_args *);
621 int (*vop_nmknod)(struct vop_nmknod_args *);
622 int (*vop_nlink)(struct vop_nlink_args *);
623 int (*vop_nsymlink)(struct vop_nsymlink_args *);
624 int (*vop_nwhiteout)(struct vop_nwhiteout_args *);
625 int (*vop_nremove)(struct vop_nremove_args *);
626 int (*vop_nrmdir)(struct vop_nrmdir_args *);
627 int (*vop_nrename)(struct vop_nrename_args *);
628 #define vop_ops_last_field vop_nrename
631 #define VVF_JOURNAL_LAYER 0x0001
632 #define VVF_COHERENCY_LAYER 0x0002
633 #define VVF_SUPPORTS_FSMID 0x0004
634 #define VVF_UNUSED_08 0x0008
635 #define VVF_NOATIME 0x0010 /* FUTURE */
636 #define VVF_RDONLY 0x0020 /* FUTURE */
637 #define VVF_NOCLUSTER 0x0040 /* FUTURE */
638 #define VVF_SUIDDIR 0x0080 /* FUTURE */
641 * vop_mountctl() operations
643 #define VFSSET_DETACH 0
644 #define VFSSET_ATTACH 1
647 * Kernel VOP arguments union, suitable for malloc / embedding in other
648 * structures. The vop_args_union can hold any VOP call argument structure.
649 * Note that vu_head is broken out.
651 union vop_args_union {
652 struct vop_generic_args vu_head;
653 struct vop_generic_args vu_default;
654 struct vop_islocked_args vu_islocked;
655 struct vop_old_lookup_args vu_lookup;
656 struct vop_old_create_args vu_create;
657 struct vop_old_whiteout_args vu_whiteout;
658 struct vop_old_mknod_args vu_mknod;
659 struct vop_open_args vu_open;
660 struct vop_close_args vu_close;
661 struct vop_access_args vu_access;
662 struct vop_getattr_args vu_getattr;
663 struct vop_setattr_args vu_setattr;
664 struct vop_read_args vu_read;
665 struct vop_write_args vu_write;
666 struct vop_ioctl_args vu_ioctl;
667 struct vop_poll_args vu_poll;
668 struct vop_kqfilter_args vu_kqfilter;
669 struct vop_revoke_args vu_revoke;
670 struct vop_mmap_args vu_mmap;
671 struct vop_fsync_args vu_fsync;
672 struct vop_old_remove_args vu_remove;
673 struct vop_old_link_args vu_link;
674 struct vop_old_rename_args vu_rename;
675 struct vop_old_mkdir_args vu_mkdir;
676 struct vop_old_rmdir_args vu_rmdir;
677 struct vop_old_symlink_args vu_symlink;
678 struct vop_readdir_args vu_readdir;
679 struct vop_readlink_args vu_readlink;
680 struct vop_inactive_args vu_inactive;
681 struct vop_reclaim_args vu_reclaim;
682 struct vop_lock_args vu_lock;
683 struct vop_unlock_args vu_unlock;
684 struct vop_bmap_args vu_bmap;
685 struct vop_strategy_args vu_strategy;
686 struct vop_print_args vu_print;
687 struct vop_pathconf_args vu_pathconf;
688 struct vop_advlock_args vu_advlock;
689 struct vop_balloc_args vu_balloc;
690 struct vop_reallocblks_args vu_reallocblks;
691 struct vop_getpages_args vu_getpages;
692 struct vop_putpages_args vu_putpages;
693 struct vop_freeblks_args vu_freeblks;
694 struct vop_bwrite_args vu_bwrite;
695 struct vop_getacl_args vu_getacl;
696 struct vop_setacl_args vu_setacl;
697 struct vop_aclcheck_args vu_aclcheck;
698 struct vop_getextattr_args vu_getextattr;
699 struct vop_setextattr_args vu_setextattr;
700 struct vop_mountctl_args vu_mountctl;
702 struct vop_nresolve_args vu_nresolve;
703 struct vop_nlookupdotdot_args vu_nlookupdotdot;
704 struct vop_ncreate_args vu_ncreate;
705 struct vop_nmkdir_args vu_nmkdir;
706 struct vop_nmknod_args vu_nmknod;
707 struct vop_nlink_args vu_nlink;
708 struct vop_nsymlink_args vu_nsymlink;
709 struct vop_nwhiteout_args vu_nwhiteout;
710 struct vop_nremove_args vu_nremove;
711 struct vop_nrmdir_args vu_nrmdir;
712 struct vop_nrename_args vu_nrename;
718 * Kernel VOP call wrappers. These wrappers are responsible for wrapping
719 * the arguments in the appropriate VOP arguments structure, sending the
720 * message, and waiting for a reply. All kernel and VFS code should generally
721 * call these wrappers rather then attempt to call the operations vector
722 * routine directly in order to allow DragonFly to properly wrap the operation
723 * in a message and dispatch it to the correct thread.
725 int vop_islocked(struct vop_ops *ops, struct vnode *vp, struct thread *td);
726 int vop_old_lookup(struct vop_ops *ops, struct vnode *dvp,
727 struct vnode **vpp, struct componentname *cnp);
728 int vop_old_create(struct vop_ops *ops, struct vnode *dvp,
729 struct vnode **vpp, struct componentname *cnp,
731 int vop_old_whiteout(struct vop_ops *ops, struct vnode *dvp,
732 struct componentname *cnp, int flags);
733 int vop_old_mknod(struct vop_ops *ops, struct vnode *dvp,
734 struct vnode **vpp, struct componentname *cnp,
736 int vop_open(struct vop_ops *ops, struct vnode *vp, int mode,
737 struct ucred *cred, struct file *file, struct thread *td);
738 int vop_close(struct vop_ops *ops, struct vnode *vp,
739 int fflag, struct thread *td);
740 int vop_access(struct vop_ops *ops, struct vnode *vp, int mode,
741 struct ucred *cred, struct thread *td);
742 int vop_getattr(struct vop_ops *ops, struct vnode *vp, struct vattr *vap,
744 int vop_setattr(struct vop_ops *ops, struct vnode *vp, struct vattr *vap,
745 struct ucred *cred, struct thread *td);
746 int vop_read(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
747 int ioflag, struct ucred *cred);
748 int vop_write(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
749 int ioflag, struct ucred *cred);
750 int vop_ioctl(struct vop_ops *ops, struct vnode *vp, u_long command,
751 caddr_t data, int fflag,
752 struct ucred *cred, struct thread *td);
753 int vop_poll(struct vop_ops *ops, struct vnode *vp, int events,
754 struct ucred *cred, struct thread *td);
755 int vop_kqfilter(struct vop_ops *ops, struct vnode *vp, struct knote *kn);
756 int vop_revoke(struct vop_ops *ops, struct vnode *vp, int flags);
757 int vop_mmap(struct vop_ops *ops, struct vnode *vp, int fflags,
758 struct ucred *cred, struct thread *td);
759 int vop_fsync(struct vop_ops *ops, struct vnode *vp, int waitfor,
761 int vop_old_remove(struct vop_ops *ops, struct vnode *dvp,
762 struct vnode *vp, struct componentname *cnp);
763 int vop_old_link(struct vop_ops *ops, struct vnode *tdvp,
764 struct vnode *vp, struct componentname *cnp);
765 int vop_old_rename(struct vop_ops *ops, struct vnode *fdvp,
766 struct vnode *fvp, struct componentname *fcnp,
767 struct vnode *tdvp, struct vnode *tvp,
768 struct componentname *tcnp);
769 int vop_old_mkdir(struct vop_ops *ops, struct vnode *dvp,
770 struct vnode **vpp, struct componentname *cnp,
772 int vop_old_rmdir(struct vop_ops *ops, struct vnode *dvp,
773 struct vnode *vp, struct componentname *cnp);
774 int vop_old_symlink(struct vop_ops *ops, struct vnode *dvp,
775 struct vnode **vpp, struct componentname *cnp,
776 struct vattr *vap, char *target);
777 int vop_readdir(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
778 struct ucred *cred, int *eofflag,
779 int *ncookies, u_long **cookies);
780 int vop_readlink(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
782 int vop_inactive(struct vop_ops *ops, struct vnode *vp, struct thread *td);
783 int vop_reclaim(struct vop_ops *ops, struct vnode *vp, struct thread *td);
784 int vop_lock(struct vop_ops *ops, struct vnode *vp,
785 int flags, struct thread *td);
786 int vop_unlock(struct vop_ops *ops, struct vnode *vp,
787 int flags, struct thread *td);
788 int vop_bmap(struct vop_ops *ops, struct vnode *vp, off_t loffset,
789 struct vnode **vpp, off_t *doffsetp, int *runp, int *runb);
790 int vop_strategy(struct vop_ops *ops, struct vnode *vp, struct bio *bio);
791 int vop_print(struct vop_ops *ops, struct vnode *vp);
792 int vop_pathconf(struct vop_ops *ops, struct vnode *vp, int name,
794 int vop_advlock(struct vop_ops *ops, struct vnode *vp, caddr_t id, int op,
795 struct flock *fl, int flags);
796 int vop_balloc(struct vop_ops *ops, struct vnode *vp, off_t startoffset,
797 int size, struct ucred *cred, int flags,
799 int vop_reallocblks(struct vop_ops *ops, struct vnode *vp,
800 struct cluster_save *buflist);
801 int vop_getpages(struct vop_ops *ops, struct vnode *vp, struct vm_page **m,
802 int count, int reqpage, vm_ooffset_t offset);
803 int vop_putpages(struct vop_ops *ops, struct vnode *vp, struct vm_page **m,
804 int count, int sync, int *rtvals, vm_ooffset_t offset);
805 int vop_freeblks(struct vop_ops *ops, struct vnode *vp,
806 off_t offset, int length);
807 int vop_bwrite(struct vop_ops *ops, struct vnode *vp, struct buf *bp);
808 int vop_getacl(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
809 struct acl *aclp, struct ucred *cred, struct thread *td);
810 int vop_setacl(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
811 struct acl *aclp, struct ucred *cred, struct thread *td);
812 int vop_aclcheck(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
813 struct acl *aclp, struct ucred *cred, struct thread *td);
814 int vop_getextattr(struct vop_ops *ops, struct vnode *vp, char *name,
815 struct uio *uio, struct ucred *cred, struct thread *td);
816 int vop_setextattr(struct vop_ops *ops, struct vnode *vp, char *name,
817 struct uio *uio, struct ucred *cred, struct thread *td);
818 int vop_mountctl(struct vop_ops *ops, int op, struct file *fp,
819 const void *ctl, int ctllen, void *buf, int buflen, int *res);
820 int vop_nresolve(struct vop_ops *ops, struct namecache *ncp,
822 int vop_nlookupdotdot(struct vop_ops *ops, struct vnode *dvp,
823 struct vnode **vpp, struct ucred *cred);
824 int vop_ncreate(struct vop_ops *ops, struct namecache *ncp,
825 struct vnode **vpp, struct ucred *cred, struct vattr *vap);
826 int vop_nmkdir(struct vop_ops *ops, struct namecache *ncp,
827 struct vnode **vpp, struct ucred *cred, struct vattr *vap);
828 int vop_nmknod(struct vop_ops *ops, struct namecache *ncp,
829 struct vnode **vpp, struct ucred *cred, struct vattr *vap);
830 int vop_nlink(struct vop_ops *ops, struct namecache *ncp, struct vnode *vp,
832 int vop_nsymlink(struct vop_ops *ops, struct namecache *ncp,
833 struct vnode **vpp, struct ucred *cred,
834 struct vattr *vap, char *target);
835 int vop_nwhiteout(struct vop_ops *ops, struct namecache *ncp,
836 struct ucred *cred, int flags);
837 int vop_nremove(struct vop_ops *ops, struct namecache *ncp,
839 int vop_nrmdir(struct vop_ops *ops, struct namecache *ncp,
841 int vop_nrename(struct vop_ops *ops, struct namecache *fncp,
842 struct namecache *tncp, struct ucred *cred);
845 * Kernel VOP forwarding wrappers. These are called when a VFS such as
846 * nullfs or unionfs needs to push down into another VFS, changing the
847 * a_ops pointer and consequentially necessitating additional
850 * Note that this is different from vop_ops chaining within the same
851 * filesystem. When a filesystem chains a vop_ops it just uses VOCALLs.
853 int vop_vnoperate_ap(struct vop_generic_args *ap);
854 int vop_cache_operate_ap(struct vop_generic_args *ap);
855 int vop_journal_operate_ap(struct vop_generic_args *ap);
856 int vop_islocked_ap(struct vop_islocked_args *ap);
857 int vop_old_lookup_ap(struct vop_old_lookup_args *ap);
858 int vop_old_create_ap(struct vop_old_create_args *ap);
859 int vop_old_whiteout_ap(struct vop_old_whiteout_args *ap);
860 int vop_old_mknod_ap(struct vop_old_mknod_args *ap);
861 int vop_open_ap(struct vop_open_args *ap);
862 int vop_close_ap(struct vop_close_args *ap);
863 int vop_access_ap(struct vop_access_args *ap);
864 int vop_getattr_ap(struct vop_getattr_args *ap);
865 int vop_setattr_ap(struct vop_setattr_args *ap);
866 int vop_read_ap(struct vop_read_args *ap);
867 int vop_write_ap(struct vop_write_args *ap);
868 int vop_ioctl_ap(struct vop_ioctl_args *ap);
869 int vop_poll_ap(struct vop_poll_args *ap);
870 int vop_kqfilter_ap(struct vop_kqfilter_args *ap);
871 int vop_revoke_ap(struct vop_revoke_args *ap);
872 int vop_mmap_ap(struct vop_mmap_args *ap);
873 int vop_fsync_ap(struct vop_fsync_args *ap);
874 int vop_old_remove_ap(struct vop_old_remove_args *ap);
875 int vop_old_link_ap(struct vop_old_link_args *ap);
876 int vop_old_rename_ap(struct vop_old_rename_args *ap);
877 int vop_old_mkdir_ap(struct vop_old_mkdir_args *ap);
878 int vop_old_rmdir_ap(struct vop_old_rmdir_args *ap);
879 int vop_old_symlink_ap(struct vop_old_symlink_args *ap);
880 int vop_readdir_ap(struct vop_readdir_args *ap);
881 int vop_readlink_ap(struct vop_readlink_args *ap);
882 int vop_inactive_ap(struct vop_inactive_args *ap);
883 int vop_reclaim_ap(struct vop_reclaim_args *ap);
884 int vop_lock_ap(struct vop_lock_args *ap);
885 int vop_unlock_ap(struct vop_unlock_args *ap);
886 int vop_bmap_ap(struct vop_bmap_args *ap);
887 int vop_strategy_ap(struct vop_strategy_args *ap);
888 int vop_print_ap(struct vop_print_args *ap);
889 int vop_pathconf_ap(struct vop_pathconf_args *ap);
890 int vop_advlock_ap(struct vop_advlock_args *ap);
891 int vop_balloc_ap(struct vop_balloc_args *ap);
892 int vop_reallocblks_ap(struct vop_reallocblks_args *ap);
893 int vop_getpages_ap(struct vop_getpages_args *ap);
894 int vop_putpages_ap(struct vop_putpages_args *ap);
895 int vop_freeblks_ap(struct vop_freeblks_args *ap);
896 int vop_bwrite_ap(struct vop_bwrite_args *ap);
897 int vop_getacl_ap(struct vop_getacl_args *ap);
898 int vop_setacl_ap(struct vop_setacl_args *ap);
899 int vop_aclcheck_ap(struct vop_aclcheck_args *ap);
900 int vop_getextattr_ap(struct vop_getextattr_args *ap);
901 int vop_setextattr_ap(struct vop_setextattr_args *ap);
902 int vop_mountctl_ap(struct vop_mountctl_args *ap);
904 int vop_nresolve_ap(struct vop_nresolve_args *ap);
905 int vop_nlookupdotdot_ap(struct vop_nlookupdotdot_args *ap);
906 int vop_ncreate_ap(struct vop_ncreate_args *ap);
907 int vop_nmkdir_ap(struct vop_nmkdir_args *ap);
908 int vop_nmknod_ap(struct vop_nmknod_args *ap);
909 int vop_nlink_ap(struct vop_nlink_args *ap);
910 int vop_nsymlink_ap(struct vop_nsymlink_args *ap);
911 int vop_nwhiteout_ap(struct vop_nwhiteout_args *ap);
912 int vop_nremove_ap(struct vop_nremove_args *ap);
913 int vop_nrmdir_ap(struct vop_nrmdir_args *ap);
914 int vop_nrename_ap(struct vop_nrename_args *ap);
917 * VOP operations descriptor. This is used by the vop_ops compiler
918 * to convert VFS vector arrays (typically in vfs/blah/blah_vnops.c)
919 * into a vop_ops operations vector.
921 extern struct vnodeop_desc vop_default_desc;
922 extern struct vnodeop_desc vop_islocked_desc;
923 extern struct vnodeop_desc vop_old_lookup_desc;
924 extern struct vnodeop_desc vop_old_create_desc;
925 extern struct vnodeop_desc vop_old_whiteout_desc;
926 extern struct vnodeop_desc vop_old_mknod_desc;
927 extern struct vnodeop_desc vop_open_desc;
928 extern struct vnodeop_desc vop_close_desc;
929 extern struct vnodeop_desc vop_access_desc;
930 extern struct vnodeop_desc vop_getattr_desc;
931 extern struct vnodeop_desc vop_setattr_desc;
932 extern struct vnodeop_desc vop_read_desc;
933 extern struct vnodeop_desc vop_write_desc;
934 extern struct vnodeop_desc vop_ioctl_desc;
935 extern struct vnodeop_desc vop_poll_desc;
936 extern struct vnodeop_desc vop_kqfilter_desc;
937 extern struct vnodeop_desc vop_revoke_desc;
938 extern struct vnodeop_desc vop_mmap_desc;
939 extern struct vnodeop_desc vop_fsync_desc;
940 extern struct vnodeop_desc vop_old_remove_desc;
941 extern struct vnodeop_desc vop_old_link_desc;
942 extern struct vnodeop_desc vop_old_rename_desc;
943 extern struct vnodeop_desc vop_old_mkdir_desc;
944 extern struct vnodeop_desc vop_old_rmdir_desc;
945 extern struct vnodeop_desc vop_old_symlink_desc;
946 extern struct vnodeop_desc vop_readdir_desc;
947 extern struct vnodeop_desc vop_readlink_desc;
948 extern struct vnodeop_desc vop_inactive_desc;
949 extern struct vnodeop_desc vop_reclaim_desc;
950 extern struct vnodeop_desc vop_lock_desc;
951 extern struct vnodeop_desc vop_unlock_desc;
952 extern struct vnodeop_desc vop_bmap_desc;
953 extern struct vnodeop_desc vop_strategy_desc;
954 extern struct vnodeop_desc vop_print_desc;
955 extern struct vnodeop_desc vop_pathconf_desc;
956 extern struct vnodeop_desc vop_advlock_desc;
957 extern struct vnodeop_desc vop_balloc_desc;
958 extern struct vnodeop_desc vop_reallocblks_desc;
959 extern struct vnodeop_desc vop_getpages_desc;
960 extern struct vnodeop_desc vop_putpages_desc;
961 extern struct vnodeop_desc vop_freeblks_desc;
962 extern struct vnodeop_desc vop_bwrite_desc;
963 extern struct vnodeop_desc vop_getacl_desc;
964 extern struct vnodeop_desc vop_setacl_desc;
965 extern struct vnodeop_desc vop_aclcheck_desc;
966 extern struct vnodeop_desc vop_getextattr_desc;
967 extern struct vnodeop_desc vop_setextattr_desc;
968 extern struct vnodeop_desc vop_mountctl_desc;
970 extern struct vnodeop_desc vop_nresolve_desc;
971 extern struct vnodeop_desc vop_nlookupdotdot_desc;
972 extern struct vnodeop_desc vop_ncreate_desc;
973 extern struct vnodeop_desc vop_nmkdir_desc;
974 extern struct vnodeop_desc vop_nmknod_desc;
975 extern struct vnodeop_desc vop_nlink_desc;
976 extern struct vnodeop_desc vop_nsymlink_desc;
977 extern struct vnodeop_desc vop_nwhiteout_desc;
978 extern struct vnodeop_desc vop_nremove_desc;
979 extern struct vnodeop_desc vop_nrmdir_desc;
980 extern struct vnodeop_desc vop_nrename_desc;
985 * VOP_*() convenience macros extract the operations vector and make the
988 #define VOP_ISLOCKED(vp, td) \
989 vop_islocked(*(vp)->v_ops, vp, td)
990 #define VOP_OPEN(vp, mode, cred, fp, td) \
991 vop_open(*(vp)->v_ops, vp, mode, cred, fp, td)
992 #define VOP_CLOSE(vp, fflag, td) \
993 vop_close(*(vp)->v_ops, vp, fflag, td)
994 #define VOP_ACCESS(vp, mode, cred, td) \
995 vop_access(*(vp)->v_ops, vp, mode, cred, td)
996 #define VOP_GETATTR(vp, vap, td) \
997 vop_getattr(*(vp)->v_ops, vp, vap, td)
998 #define VOP_SETATTR(vp, vap, cred, td) \
999 vop_setattr(*(vp)->v_ops, vp, vap, cred, td)
1000 #define VOP_READ(vp, uio, ioflag, cred) \
1001 vop_read(*(vp)->v_ops, vp, uio, ioflag, cred)
1002 #define VOP_WRITE(vp, uio, ioflag, cred) \
1003 vop_write(*(vp)->v_ops, vp, uio, ioflag, cred)
1004 #define VOP_IOCTL(vp, command, data, fflag, cred, td) \
1005 vop_ioctl(*(vp)->v_ops, vp, command, data, fflag, cred, td)
1006 #define VOP_POLL(vp, events, cred, td) \
1007 vop_poll(*(vp)->v_ops, vp, events, cred, td)
1008 #define VOP_KQFILTER(vp, kn) \
1009 vop_kqfilter(*(vp)->v_ops, vp, kn)
1010 #define VOP_REVOKE(vp, flags) \
1011 vop_revoke(*(vp)->v_ops, vp, flags)
1012 #define VOP_MMAP(vp, fflags, cred, td) \
1013 vop_mmap(*(vp)->v_ops, vp, fflags, cred, td)
1014 #define VOP_FSYNC(vp, waitfor, td) \
1015 vop_fsync(*(vp)->v_ops, vp, waitfor, td)
1016 #define VOP_READDIR(vp, uio, cred, eofflag, ncookies, cookies) \
1017 vop_readdir(*(vp)->v_ops, vp, uio, cred, eofflag, ncookies, cookies)
1018 #define VOP_READLINK(vp, uio, cred) \
1019 vop_readlink(*(vp)->v_ops, vp, uio, cred)
1020 #define VOP_INACTIVE(vp, td) \
1021 vop_inactive(*(vp)->v_ops, vp, td)
1022 #define VOP_RECLAIM(vp, td) \
1023 vop_reclaim(*(vp)->v_ops, vp, td)
1024 #define VOP_LOCK(vp, flags, td) \
1025 vop_lock(*(vp)->v_ops, vp, flags, td)
1026 #define VOP_UNLOCK(vp, flags, td) \
1027 vop_unlock(*(vp)->v_ops, vp, flags, td)
1028 #define VOP_BMAP(vp, loff, vpp, doffp, runp, runb) \
1029 vop_bmap(*(vp)->v_ops, vp, loff, vpp, doffp, runp, runb)
1030 #define VOP_PRINT(vp) \
1031 vop_print(*(vp)->v_ops, vp)
1032 #define VOP_PATHCONF(vp, name, retval) \
1033 vop_pathconf(*(vp)->v_ops, vp, name, retval)
1034 #define VOP_ADVLOCK(vp, id, op, fl, flags) \
1035 vop_advlock(*(vp)->v_ops, vp, id, op, fl, flags)
1036 #define VOP_BALLOC(vp, offset, size, cred, flags, bpp) \
1037 vop_balloc(*(vp)->v_ops, vp, offset, size, cred, flags, bpp)
1038 #define VOP_REALLOCBLKS(vp, buflist) \
1039 vop_reallocblks(*(vp)->v_ops, vp, buflist)
1040 #define VOP_GETPAGES(vp, m, count, reqpage, off) \
1041 vop_getpages(*(vp)->v_ops, vp, m, count, reqpage, off)
1042 #define VOP_PUTPAGES(vp, m, count, sync, rtvals, off) \
1043 vop_putpages(*(vp)->v_ops, vp, m, count, sync, rtvals, off)
1044 #define VOP_FREEBLKS(vp, offset, length) \
1045 vop_freeblks(*(vp)->v_ops, vp, offset, length)
1046 #define VOP_BWRITE(vp, bp) \
1047 vop_bwrite(*(vp)->v_ops, vp, bp)
1048 #define VOP_GETACL(vp, type, aclp, cred, td) \
1049 vop_getacl(*(vp)->v_ops, vp, type, aclp, cred, td)
1050 #define VOP_SETACL(vp, type, aclp, cred, td) \
1051 vop_setacl(*(vp)->v_ops, vp, type, aclp, cred, td)
1052 #define VOP_ACLCHECK(vp, type, aclp, cred, td) \
1053 vop_aclcheck(*(vp)->v_ops, vp, type, aclp, cred, td)
1054 #define VOP_GETEXTATTR(vp, name, uio, cred, td) \
1055 vop_getextattr(*(vp)->v_ops, vp, name, uio, cred, td)
1056 #define VOP_SETEXTATTR(vp, name, uio, cred, td) \
1057 vop_setextattr(*(vp)->v_ops, vp, name, uio, cred, td)
1058 /* no VOP_VFSSET() */
1059 /* VOP_STRATEGY - does not exist, use vn_strategy() */
1062 * 'OLD' VOP calls. These calls may only be made by the new API
1063 * compatibility functions in kern/vfs_default.c. Attempting to
1064 * call these functions directly will confuse the namecache. These
1065 * calls are deprecated and being removed from the system and from
1068 #define VOP_OLD_LOOKUP(dvp, vpp, cnp) \
1069 vop_old_lookup(*(dvp)->v_ops, dvp, vpp, cnp)
1070 #define VOP_OLD_CREATE(dvp, vpp, cnp, vap) \
1071 vop_old_create(*(dvp)->v_ops, dvp, vpp, cnp, vap)
1072 #define VOP_OLD_MKDIR(dvp, vpp, cnp, vap) \
1073 vop_old_mkdir(*(dvp)->v_ops, dvp, vpp, cnp, vap)
1074 #define VOP_OLD_MKNOD(dvp, vpp, cnp, vap) \
1075 vop_old_mknod(*(dvp)->v_ops, dvp, vpp, cnp, vap)
1076 #define VOP_OLD_LINK(tdvp, vp, cnp) \
1077 vop_old_link(*(tdvp)->v_ops, tdvp, vp, cnp)
1078 #define VOP_OLD_SYMLINK(dvp, vpp, cnp, vap, target) \
1079 vop_old_symlink(*(dvp)->v_ops, dvp, vpp, cnp, vap, target)
1080 #define VOP_OLD_WHITEOUT(dvp, cnp, flags) \
1081 vop_old_whiteout(*(dvp)->v_ops, dvp, cnp, flags)
1082 #define VOP_OLD_RENAME(fdvp, fvp, fcnp, tdvp, tvp, tcnp) \
1083 vop_old_rename(*(fdvp)->v_ops, fdvp, fvp, fcnp, tdvp, tvp, tcnp)
1084 #define VOP_OLD_RMDIR(dvp, vp, cnp) \
1085 vop_old_rmdir(*(dvp)->v_ops, dvp, vp, cnp)
1086 #define VOP_OLD_REMOVE(dvp, vp, cnp) \
1087 vop_old_remove(*(dvp)->v_ops, dvp, vp, cnp)
1090 * 'NEW' VOP calls. These calls use namespaces as an operational basis
1091 * rather then vnodes and replace the OLD calls. Eventually all VFS's
1092 * will support these calls. Those that do not fall through to compatibility
1093 * code in kern/vfs_default which does the magic required to call the old
1096 #define VOP_NRESOLVE(ncp, cred) \
1097 vop_nresolve((ncp)->nc_mount->mnt_vn_use_ops, ncp, cred)
1098 #define VOP_NCREATE(ncp, vpp, cred, vap) \
1099 vop_ncreate((ncp)->nc_mount->mnt_vn_use_ops, ncp, vpp, cred, vap)
1100 #define VOP_NMKDIR(ncp, vpp, cred, vap) \
1101 vop_nmkdir((ncp)->nc_mount->mnt_vn_use_ops, ncp, vpp, cred, vap)
1102 #define VOP_NMKNOD(ncp, vpp, cred, vap) \
1103 vop_nmknod((ncp)->nc_mount->mnt_vn_use_ops, ncp, vpp, cred, vap)
1104 #define VOP_NLINK(ncp, vp, cred) \
1105 vop_nlink((ncp)->nc_mount->mnt_vn_use_ops, ncp, vp, cred)
1106 #define VOP_NSYMLINK(ncp, vpp, cred, vap, target) \
1107 vop_nsymlink((ncp)->nc_mount->mnt_vn_use_ops, ncp, vpp, cred, vap, target)
1108 #define VOP_NWHITEOUT(ncp, cred, flags) \
1109 vop_nwhiteout((ncp)->nc_mount->mnt_vn_use_ops, ncp, cred, flags)
1110 #define VOP_NRENAME(fncp, tncp, cred) \
1111 vop_nrename((fncp)->nc_mount->mnt_vn_use_ops, fncp, tncp, cred)
1112 #define VOP_NRMDIR(ncp, cred) \
1113 vop_nrmdir((ncp)->nc_mount->mnt_vn_use_ops, ncp, cred)
1114 #define VOP_NREMOVE(ncp, cred) \
1115 vop_nremove((ncp)->nc_mount->mnt_vn_use_ops, ncp, cred)