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 1.12 2004/12/29 02:40:03 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_lookup_args {
98 struct vop_generic_args a_head;
100 struct vnode **a_vpp;
101 struct componentname *a_cnp;
104 struct vop_create_args {
105 struct vop_generic_args a_head;
107 struct vnode **a_vpp;
108 struct componentname *a_cnp;
112 struct vop_whiteout_args {
113 struct vop_generic_args a_head;
115 struct componentname *a_cnp;
119 struct vop_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_lease_args {
183 struct vop_generic_args a_head;
186 struct ucred *a_cred;
190 struct vop_ioctl_args {
191 struct vop_generic_args a_head;
196 struct ucred *a_cred;
200 struct vop_poll_args {
201 struct vop_generic_args a_head;
204 struct ucred *a_cred;
208 struct vop_kqfilter_args {
209 struct vop_generic_args a_head;
214 struct vop_revoke_args {
215 struct vop_generic_args a_head;
220 struct vop_mmap_args {
221 struct vop_generic_args a_head;
224 struct ucred *a_cred;
228 struct vop_fsync_args {
229 struct vop_generic_args a_head;
235 struct vop_remove_args {
236 struct vop_generic_args a_head;
239 struct componentname *a_cnp;
242 struct vop_link_args {
243 struct vop_generic_args a_head;
244 struct vnode *a_tdvp;
246 struct componentname *a_cnp;
249 struct vop_rename_args {
250 struct vop_generic_args a_head;
251 struct vnode *a_fdvp;
253 struct componentname *a_fcnp;
254 struct vnode *a_tdvp;
256 struct componentname *a_tcnp;
259 struct vop_mkdir_args {
260 struct vop_generic_args a_head;
262 struct vnode **a_vpp;
263 struct componentname *a_cnp;
267 struct vop_rmdir_args {
268 struct vop_generic_args a_head;
271 struct componentname *a_cnp;
274 struct vop_symlink_args {
275 struct vop_generic_args a_head;
277 struct vnode **a_vpp;
278 struct componentname *a_cnp;
283 struct vop_readdir_args {
284 struct vop_generic_args a_head;
287 struct ucred *a_cred;
293 struct vop_readlink_args {
294 struct vop_generic_args a_head;
297 struct ucred *a_cred;
300 struct vop_inactive_args {
301 struct vop_generic_args a_head;
306 struct vop_reclaim_args {
307 struct vop_generic_args a_head;
312 struct vop_lock_args {
313 struct vop_generic_args a_head;
319 struct vop_unlock_args {
320 struct vop_generic_args a_head;
326 struct vop_bmap_args {
327 struct vop_generic_args a_head;
330 struct vnode **a_vpp;
336 struct vop_strategy_args {
337 struct vop_generic_args a_head;
342 struct vop_print_args {
343 struct vop_generic_args a_head;
347 struct vop_pathconf_args {
348 struct vop_generic_args a_head;
351 register_t *a_retval;
354 struct vop_advlock_args {
355 struct vop_generic_args a_head;
363 struct vop_balloc_args {
364 struct vop_generic_args a_head;
368 struct ucred *a_cred;
373 struct vop_reallocblks_args {
374 struct vop_generic_args a_head;
376 struct cluster_save *a_buflist;
379 struct vop_getpages_args {
380 struct vop_generic_args a_head;
382 struct vm_page **a_m;
385 vm_ooffset_t a_offset;
388 struct vop_putpages_args {
389 struct vop_generic_args a_head;
391 struct vm_page **a_m;
395 vm_ooffset_t a_offset;
398 struct vop_freeblks_args {
399 struct vop_generic_args a_head;
405 struct vop_bwrite_args {
406 struct vop_generic_args a_head;
411 struct vop_getacl_args {
412 struct vop_generic_args a_head;
416 struct ucred *a_cred;
420 struct vop_setacl_args {
421 struct vop_generic_args a_head;
425 struct ucred *a_cred;
429 struct vop_aclcheck_args {
430 struct vop_generic_args a_head;
434 struct ucred *a_cred;
438 struct vop_getextattr_args {
439 struct vop_generic_args a_head;
443 struct ucred *a_cred;
447 struct vop_setextattr_args {
448 struct vop_generic_args a_head;
452 struct ucred *a_cred;
456 struct vop_createvobject_args {
457 struct vop_generic_args a_head;
462 struct vop_destroyvobject_args {
463 struct vop_generic_args a_head;
467 struct vop_getvobject_args {
468 struct vop_generic_args a_head;
470 struct vm_object **a_objpp;
473 struct vop_mountctl_args {
474 struct vop_generic_args a_head;
487 struct vop_nresolve_args {
488 struct vop_generic_args a_head;
489 struct namecache *a_ncp;
490 struct ucred *a_cred;
493 struct vop_nlookupdotdot_args {
494 struct vop_generic_args a_head;
496 struct vnode **a_vpp;
497 struct ucred *a_cred;
500 struct vop_ncreate_args {
501 struct vop_generic_args a_head;
502 struct namecache *a_ncp; /* locked namespace */
503 struct vnode **a_vpp; /* returned refd & locked */
504 struct ucred *a_cred;
508 struct vop_nmkdir_args {
509 struct vop_generic_args a_head;
510 struct namecache *a_ncp; /* locked namespace */
511 struct vnode **a_vpp; /* returned refd & locked */
512 struct ucred *a_cred;
516 struct vop_nmknod_args {
517 struct vop_generic_args a_head;
518 struct namecache *a_ncp;
519 struct vnode **a_vpp;
520 struct ucred *a_cred;
524 struct vop_nlink_args {
525 struct vop_generic_args a_head;
526 struct namecache *a_ncp;
528 struct ucred *a_cred;
531 struct vop_nsymlink_args {
532 struct vop_generic_args a_head;
533 struct namecache *a_ncp;
534 struct vnode **a_vpp;
535 struct ucred *a_cred;
540 struct vop_nwhiteout_args {
541 struct vop_generic_args a_head;
542 struct namecache *a_ncp;
543 struct ucred *a_cred;
547 struct vop_nremove_args {
548 struct vop_generic_args a_head;
549 struct namecache *a_ncp; /* locked namespace */
550 struct ucred *a_cred;
553 struct vop_nrmdir_args {
554 struct vop_generic_args a_head;
555 struct namecache *a_ncp; /* locked namespace */
556 struct ucred *a_cred;
559 struct vop_nrename_args {
560 struct vop_generic_args a_head;
561 struct namecache *a_fncp; /* locked namespace / from */
562 struct namecache *a_tncp; /* locked namespace / to */
563 struct ucred *a_cred;
567 * This structure is the post-compiled VOP operations vector. vop_ops are
568 * typically per-mount entities. The first section is used by our vop_*()
569 * function wrappers to implement hooks for per-mount management functions
570 * such as journaling and cache coherency protocols. The second section is
571 * the function dispatch for the VFSs. The functions are supposed to run
572 * in the context of the VFS's thread (if it has one) and should not be
573 * directly called from random kernel code. Note that VOCALL()s are direct
574 * calls used for chaining vop_ops structures from a VFS context.
577 struct vop_ops *vv_new; /* vfs_recalc_vnodeops() only */
578 struct mount *vv_mount;
580 int vv_flags; /* see VVF_* flags below */
585 int vv_reserved[62]; /* (temporary) reduce recompile pain */
587 #define vop_ops_first_field vop_default
588 int (*vop_default)(struct vop_generic_args *);
589 int (*vop_islocked)(struct vop_islocked_args *);
590 int (*vop_lookup)(struct vop_lookup_args *);
591 int (*vop_unused03)(void *);
592 int (*vop_create)(struct vop_create_args *);
593 int (*vop_whiteout)(struct vop_whiteout_args *);
594 int (*vop_mknod)(struct vop_mknod_args *);
595 int (*vop_open)(struct vop_open_args *);
596 int (*vop_close)(struct vop_close_args *);
597 int (*vop_access)(struct vop_access_args *);
598 int (*vop_getattr)(struct vop_getattr_args *);
599 int (*vop_setattr)(struct vop_setattr_args *);
600 int (*vop_read)(struct vop_read_args *);
601 int (*vop_write)(struct vop_write_args *);
602 int (*vop_lease)(struct vop_lease_args *);
603 int (*vop_ioctl)(struct vop_ioctl_args *);
604 int (*vop_poll)(struct vop_poll_args *);
605 int (*vop_kqfilter)(struct vop_kqfilter_args *);
606 int (*vop_revoke)(struct vop_revoke_args *);
607 int (*vop_mmap)(struct vop_mmap_args *);
608 int (*vop_fsync)(struct vop_fsync_args *);
609 int (*vop_remove)(struct vop_remove_args *);
610 int (*vop_link)(struct vop_link_args *);
611 int (*vop_rename)(struct vop_rename_args *);
612 int (*vop_mkdir)(struct vop_mkdir_args *);
613 int (*vop_rmdir)(struct vop_rmdir_args *);
614 int (*vop_symlink)(struct vop_symlink_args *);
615 int (*vop_readdir)(struct vop_readdir_args *);
616 int (*vop_readlink)(struct vop_readlink_args *);
617 int (*vop_inactive)(struct vop_inactive_args *);
618 int (*vop_reclaim)(struct vop_reclaim_args *);
619 int (*vop_lock)(struct vop_lock_args *);
620 int (*vop_unlock)(struct vop_unlock_args *);
621 int (*vop_bmap)(struct vop_bmap_args *);
622 int (*vop_strategy)(struct vop_strategy_args *);
623 int (*vop_print)(struct vop_print_args *);
624 int (*vop_pathconf)(struct vop_pathconf_args *);
625 int (*vop_advlock)(struct vop_advlock_args *);
626 int (*vop_balloc)(struct vop_balloc_args *);
627 int (*vop_reallocblks)(struct vop_reallocblks_args *);
628 int (*vop_getpages)(struct vop_getpages_args *);
629 int (*vop_putpages)(struct vop_putpages_args *);
630 int (*vop_freeblks)(struct vop_freeblks_args *);
631 int (*vop_bwrite)(struct vop_bwrite_args *);
632 int (*vop_getacl)(struct vop_getacl_args *);
633 int (*vop_setacl)(struct vop_setacl_args *);
634 int (*vop_aclcheck)(struct vop_aclcheck_args *);
635 int (*vop_getextattr)(struct vop_getextattr_args *);
636 int (*vop_setextattr)(struct vop_setextattr_args *);
637 int (*vop_createvobject)(struct vop_createvobject_args *);
638 int (*vop_destroyvobject)(struct vop_destroyvobject_args *);
639 int (*vop_getvobject)(struct vop_getvobject_args *);
640 int (*vop_mountctl)(struct vop_mountctl_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
656 #define VVF_JOURNAL_LAYER 0x0001
657 #define VVF_COHERENCY_LAYER 0x0002
658 #define VVF_UNUSED_04 0x0004
659 #define VVF_UNUSED_08 0x0008
660 #define VVF_NOATIME 0x0010 /* FUTURE */
661 #define VVF_RDONLY 0x0020 /* FUTURE */
662 #define VVF_NOCLUSTER 0x0040 /* FUTURE */
663 #define VVF_SUIDDIR 0x0080 /* FUTURE */
666 * vop_mountctl() operations
668 #define VFSSET_DETACH 0
669 #define VFSSET_ATTACH 1
672 * Kernel VOP arguments union, suitable for malloc / embedding in other
673 * structures. The vop_args_union can hold any VOP call argument structure.
674 * Note that vu_head is broken out.
676 union vop_args_union {
677 struct vop_generic_args vu_head;
678 struct vop_generic_args vu_default;
679 struct vop_islocked_args vu_islocked;
680 struct vop_lookup_args vu_lookup;
681 struct vop_create_args vu_create;
682 struct vop_whiteout_args vu_whiteout;
683 struct vop_mknod_args vu_mknod;
684 struct vop_open_args vu_open;
685 struct vop_close_args vu_close;
686 struct vop_access_args vu_access;
687 struct vop_getattr_args vu_getattr;
688 struct vop_setattr_args vu_setattr;
689 struct vop_read_args vu_read;
690 struct vop_write_args vu_write;
691 struct vop_lease_args vu_lease;
692 struct vop_ioctl_args vu_ioctl;
693 struct vop_poll_args vu_poll;
694 struct vop_kqfilter_args vu_kqfilter;
695 struct vop_revoke_args vu_revoke;
696 struct vop_mmap_args vu_mmap;
697 struct vop_fsync_args vu_fsync;
698 struct vop_remove_args vu_remove;
699 struct vop_link_args vu_link;
700 struct vop_rename_args vu_rename;
701 struct vop_mkdir_args vu_mkdir;
702 struct vop_rmdir_args vu_rmdir;
703 struct vop_symlink_args vu_symlink;
704 struct vop_readdir_args vu_readdir;
705 struct vop_readlink_args vu_readlink;
706 struct vop_inactive_args vu_inactive;
707 struct vop_reclaim_args vu_reclaim;
708 struct vop_lock_args vu_lock;
709 struct vop_unlock_args vu_unlock;
710 struct vop_bmap_args vu_bmap;
711 struct vop_strategy_args vu_strategy;
712 struct vop_print_args vu_print;
713 struct vop_pathconf_args vu_pathconf;
714 struct vop_advlock_args vu_advlock;
715 struct vop_balloc_args vu_balloc;
716 struct vop_reallocblks_args vu_reallocblks;
717 struct vop_getpages_args vu_getpages;
718 struct vop_putpages_args vu_putpages;
719 struct vop_freeblks_args vu_freeblks;
720 struct vop_bwrite_args vu_bwrite;
721 struct vop_getacl_args vu_getacl;
722 struct vop_setacl_args vu_setacl;
723 struct vop_aclcheck_args vu_aclcheck;
724 struct vop_getextattr_args vu_getextattr;
725 struct vop_setextattr_args vu_setextattr;
726 struct vop_createvobject_args vu_createvobject;
727 struct vop_destroyvobject_args vu_destroyvobject;
728 struct vop_getvobject_args vu_getvobject;
729 struct vop_mountctl_args vu_mountctl;
731 struct vop_nresolve_args vu_nresolve;
732 struct vop_nlookupdotdot_args vu_nlookupdotdot;
733 struct vop_ncreate_args vu_ncreate;
734 struct vop_nmkdir_args vu_nmkdir;
735 struct vop_nmknod_args vu_nmknod;
736 struct vop_nlink_args vu_nlink;
737 struct vop_nsymlink_args vu_nsymlink;
738 struct vop_nwhiteout_args vu_nwhiteout;
739 struct vop_nremove_args vu_nremove;
740 struct vop_nrmdir_args vu_nrmdir;
741 struct vop_nrename_args vu_nrename;
747 * Kernel VOP call wrappers. These wrappers are responsible for wrapping
748 * the arguments in the appropriate VOP arguments structure, sending the
749 * message, and waiting for a reply. All kernel and VFS code should generally
750 * call these wrappers rather then attempt to call the operations vector
751 * routine directly in order to allow DragonFly to properly wrap the operation
752 * in a message and dispatch it to the correct thread.
754 int vop_islocked(struct vop_ops *ops, struct vnode *vp, struct thread *td);
755 int vop_lookup(struct vop_ops *ops, struct vnode *dvp,
756 struct vnode **vpp, struct componentname *cnp);
757 int vop_create(struct vop_ops *ops, struct vnode *dvp,
758 struct vnode **vpp, struct componentname *cnp,
760 int vop_whiteout(struct vop_ops *ops, struct vnode *dvp,
761 struct componentname *cnp, int flags);
762 int vop_mknod(struct vop_ops *ops, struct vnode *dvp,
763 struct vnode **vpp, struct componentname *cnp,
765 int vop_open(struct vop_ops *ops, struct vnode *vp, int mode,
766 struct ucred *cred, struct file *file, struct thread *td);
767 int vop_close(struct vop_ops *ops, struct vnode *vp,
768 int fflag, struct thread *td);
769 int vop_access(struct vop_ops *ops, struct vnode *vp, int mode,
770 struct ucred *cred, struct thread *td);
771 int vop_getattr(struct vop_ops *ops, struct vnode *vp, struct vattr *vap,
773 int vop_setattr(struct vop_ops *ops, struct vnode *vp, struct vattr *vap,
774 struct ucred *cred, struct thread *td);
775 int vop_read(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
776 int ioflag, struct ucred *cred);
777 int vop_write(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
778 int ioflag, struct ucred *cred);
779 int vop_lease(struct vop_ops *ops, struct vnode *vp, struct thread *td,
780 struct ucred *cred, int flag);
781 int vop_ioctl(struct vop_ops *ops, struct vnode *vp, u_long command,
782 caddr_t data, int fflag,
783 struct ucred *cred, struct thread *td);
784 int vop_poll(struct vop_ops *ops, struct vnode *vp, int events,
785 struct ucred *cred, struct thread *td);
786 int vop_kqfilter(struct vop_ops *ops, struct vnode *vp, struct knote *kn);
787 int vop_revoke(struct vop_ops *ops, struct vnode *vp, int flags);
788 int vop_mmap(struct vop_ops *ops, struct vnode *vp, int fflags,
789 struct ucred *cred, struct thread *td);
790 int vop_fsync(struct vop_ops *ops, struct vnode *vp, int waitfor,
792 int vop_remove(struct vop_ops *ops, struct vnode *dvp,
793 struct vnode *vp, struct componentname *cnp);
794 int vop_link(struct vop_ops *ops, struct vnode *tdvp,
795 struct vnode *vp, struct componentname *cnp);
796 int vop_rename(struct vop_ops *ops, struct vnode *fdvp,
797 struct vnode *fvp, struct componentname *fcnp,
798 struct vnode *tdvp, struct vnode *tvp,
799 struct componentname *tcnp);
800 int vop_mkdir(struct vop_ops *ops, struct vnode *dvp,
801 struct vnode **vpp, struct componentname *cnp,
803 int vop_rmdir(struct vop_ops *ops, struct vnode *dvp,
804 struct vnode *vp, struct componentname *cnp);
805 int vop_symlink(struct vop_ops *ops, struct vnode *dvp,
806 struct vnode **vpp, struct componentname *cnp,
807 struct vattr *vap, char *target);
808 int vop_readdir(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
809 struct ucred *cred, int *eofflag,
810 int *ncookies, u_long **cookies);
811 int vop_readlink(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
813 int vop_inactive(struct vop_ops *ops, struct vnode *vp, struct thread *td);
814 int vop_reclaim(struct vop_ops *ops, struct vnode *vp, struct thread *td);
815 int vop_lock(struct vop_ops *ops, struct vnode *vp,
816 int flags, struct thread *td);
817 int vop_unlock(struct vop_ops *ops, struct vnode *vp,
818 int flags, struct thread *td);
819 int vop_bmap(struct vop_ops *ops, struct vnode *vp, daddr_t bn,
820 struct vnode **vpp, daddr_t *bnp, int *runp, int *runb);
821 int vop_strategy(struct vop_ops *ops, struct vnode *vp, struct buf *bp);
822 int vop_print(struct vop_ops *ops, struct vnode *vp);
823 int vop_pathconf(struct vop_ops *ops, struct vnode *vp, int name,
825 int vop_advlock(struct vop_ops *ops, struct vnode *vp, caddr_t id, int op,
826 struct flock *fl, int flags);
827 int vop_balloc(struct vop_ops *ops, struct vnode *vp, off_t startoffset,
828 int size, struct ucred *cred, int flags,
830 int vop_reallocblks(struct vop_ops *ops, struct vnode *vp,
831 struct cluster_save *buflist);
832 int vop_getpages(struct vop_ops *ops, struct vnode *vp, struct vm_page **m,
833 int count, int reqpage, vm_ooffset_t offset);
834 int vop_putpages(struct vop_ops *ops, struct vnode *vp, struct vm_page **m,
835 int count, int sync, int *rtvals, vm_ooffset_t offset);
836 int vop_freeblks(struct vop_ops *ops, struct vnode *vp,
837 daddr_t addr, daddr_t length);
838 int vop_bwrite(struct vop_ops *ops, struct vnode *vp, struct buf *bp);
839 int vop_getacl(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
840 struct acl *aclp, struct ucred *cred, struct thread *td);
841 int vop_setacl(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
842 struct acl *aclp, struct ucred *cred, struct thread *td);
843 int vop_aclcheck(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
844 struct acl *aclp, struct ucred *cred, struct thread *td);
845 int vop_getextattr(struct vop_ops *ops, struct vnode *vp, char *name,
846 struct uio *uio, struct ucred *cred, struct thread *td);
847 int vop_setextattr(struct vop_ops *ops, struct vnode *vp, char *name,
848 struct uio *uio, struct ucred *cred, struct thread *td);
849 int vop_createvobject(struct vop_ops *ops,
850 struct vnode *vp, struct thread *td);
851 int vop_destroyvobject(struct vop_ops *ops, struct vnode *vp);
852 int vop_getvobject(struct vop_ops *ops,
853 struct vnode *vp, struct vm_object **objpp);
854 int vop_mountctl(struct vop_ops *ops, int op, struct file *fp,
855 const void *ctl, int ctllen, void *buf, int buflen, int *res);
856 int vop_nresolve(struct vop_ops *ops, struct namecache *ncp,
858 int vop_nlookupdotdot(struct vop_ops *ops, struct vnode *dvp,
859 struct vnode **vpp, struct ucred *cred);
860 int vop_ncreate(struct vop_ops *ops, struct namecache *ncp,
861 struct vnode **vpp, struct ucred *cred, struct vattr *vap);
862 int vop_nmkdir(struct vop_ops *ops, struct namecache *ncp,
863 struct vnode **vpp, struct ucred *cred, struct vattr *vap);
864 int vop_nmknod(struct vop_ops *ops, struct namecache *ncp,
865 struct vnode **vpp, struct ucred *cred, struct vattr *vap);
866 int vop_nlink(struct vop_ops *ops, struct namecache *ncp, struct vnode *vp,
868 int vop_nsymlink(struct vop_ops *ops, struct namecache *ncp,
869 struct vnode **vpp, struct ucred *cred,
870 struct vattr *vap, char *target);
871 int vop_nwhiteout(struct vop_ops *ops, struct namecache *ncp,
872 struct ucred *cred, int flags);
873 int vop_nremove(struct vop_ops *ops, struct namecache *ncp,
875 int vop_nrmdir(struct vop_ops *ops, struct namecache *ncp,
877 int vop_nrename(struct vop_ops *ops, struct namecache *fncp,
878 struct namecache *tncp, struct ucred *cred);
881 * Kernel VOP forwarding wrappers. These are called when a VFS such as
882 * nullfs or unionfs needs to push down into another VFS, changing the
883 * a_ops pointer and consequentially necessitating additional
886 * Note that this is different from vop_ops chaining within the same
887 * filesystem. When a filesystem chains a vop_ops it just uses VOCALLs.
889 int vop_vnoperate_ap(struct vop_generic_args *ap);
890 int vop_cache_operate_ap(struct vop_generic_args *ap);
891 int vop_journal_operate_ap(struct vop_generic_args *ap);
892 int vop_islocked_ap(struct vop_islocked_args *ap);
893 int vop_lookup_ap(struct vop_lookup_args *ap);
894 int vop_create_ap(struct vop_create_args *ap);
895 int vop_whiteout_ap(struct vop_whiteout_args *ap);
896 int vop_mknod_ap(struct vop_mknod_args *ap);
897 int vop_open_ap(struct vop_open_args *ap);
898 int vop_close_ap(struct vop_close_args *ap);
899 int vop_access_ap(struct vop_access_args *ap);
900 int vop_getattr_ap(struct vop_getattr_args *ap);
901 int vop_setattr_ap(struct vop_setattr_args *ap);
902 int vop_read_ap(struct vop_read_args *ap);
903 int vop_write_ap(struct vop_write_args *ap);
904 int vop_lease_ap(struct vop_lease_args *ap);
905 int vop_ioctl_ap(struct vop_ioctl_args *ap);
906 int vop_poll_ap(struct vop_poll_args *ap);
907 int vop_kqfilter_ap(struct vop_kqfilter_args *ap);
908 int vop_revoke_ap(struct vop_revoke_args *ap);
909 int vop_mmap_ap(struct vop_mmap_args *ap);
910 int vop_fsync_ap(struct vop_fsync_args *ap);
911 int vop_remove_ap(struct vop_remove_args *ap);
912 int vop_link_ap(struct vop_link_args *ap);
913 int vop_rename_ap(struct vop_rename_args *ap);
914 int vop_mkdir_ap(struct vop_mkdir_args *ap);
915 int vop_rmdir_ap(struct vop_rmdir_args *ap);
916 int vop_symlink_ap(struct vop_symlink_args *ap);
917 int vop_readdir_ap(struct vop_readdir_args *ap);
918 int vop_readlink_ap(struct vop_readlink_args *ap);
919 int vop_inactive_ap(struct vop_inactive_args *ap);
920 int vop_reclaim_ap(struct vop_reclaim_args *ap);
921 int vop_lock_ap(struct vop_lock_args *ap);
922 int vop_unlock_ap(struct vop_unlock_args *ap);
923 int vop_bmap_ap(struct vop_bmap_args *ap);
924 int vop_strategy_ap(struct vop_strategy_args *ap);
925 int vop_print_ap(struct vop_print_args *ap);
926 int vop_pathconf_ap(struct vop_pathconf_args *ap);
927 int vop_advlock_ap(struct vop_advlock_args *ap);
928 int vop_balloc_ap(struct vop_balloc_args *ap);
929 int vop_reallocblks_ap(struct vop_reallocblks_args *ap);
930 int vop_getpages_ap(struct vop_getpages_args *ap);
931 int vop_putpages_ap(struct vop_putpages_args *ap);
932 int vop_freeblks_ap(struct vop_freeblks_args *ap);
933 int vop_bwrite_ap(struct vop_bwrite_args *ap);
934 int vop_getacl_ap(struct vop_getacl_args *ap);
935 int vop_setacl_ap(struct vop_setacl_args *ap);
936 int vop_aclcheck_ap(struct vop_aclcheck_args *ap);
937 int vop_getextattr_ap(struct vop_getextattr_args *ap);
938 int vop_setextattr_ap(struct vop_setextattr_args *ap);
939 int vop_createvobject_ap(struct vop_createvobject_args *ap);
940 int vop_destroyvobject_ap(struct vop_destroyvobject_args *ap);
941 int vop_getvobject_ap(struct vop_getvobject_args *ap);
942 int vop_mountctl_ap(struct vop_mountctl_args *ap);
944 int vop_nresolve_ap(struct vop_nresolve_args *ap);
945 int vop_nlookupdotdot_ap(struct vop_nlookupdotdot_args *ap);
946 int vop_ncreate_ap(struct vop_ncreate_args *ap);
947 int vop_nmkdir_ap(struct vop_nmkdir_args *ap);
948 int vop_nmknod_ap(struct vop_nmknod_args *ap);
949 int vop_nlink_ap(struct vop_nlink_args *ap);
950 int vop_nsymlink_ap(struct vop_nsymlink_args *ap);
951 int vop_nwhiteout_ap(struct vop_nwhiteout_args *ap);
952 int vop_nremove_ap(struct vop_nremove_args *ap);
953 int vop_nrmdir_ap(struct vop_nrmdir_args *ap);
954 int vop_nrename_ap(struct vop_nrename_args *ap);
957 * VOP operations descriptor. This is used by the vop_ops compiler
958 * to convert VFS vector arrays (typically in vfs/blah/blah_vnops.c)
959 * into a vop_ops operations vector.
961 extern struct vnodeop_desc vop_default_desc;
962 extern struct vnodeop_desc vop_islocked_desc;
963 extern struct vnodeop_desc vop_lookup_desc;
964 extern struct vnodeop_desc vop_create_desc;
965 extern struct vnodeop_desc vop_whiteout_desc;
966 extern struct vnodeop_desc vop_mknod_desc;
967 extern struct vnodeop_desc vop_open_desc;
968 extern struct vnodeop_desc vop_close_desc;
969 extern struct vnodeop_desc vop_access_desc;
970 extern struct vnodeop_desc vop_getattr_desc;
971 extern struct vnodeop_desc vop_setattr_desc;
972 extern struct vnodeop_desc vop_read_desc;
973 extern struct vnodeop_desc vop_write_desc;
974 extern struct vnodeop_desc vop_lease_desc;
975 extern struct vnodeop_desc vop_ioctl_desc;
976 extern struct vnodeop_desc vop_poll_desc;
977 extern struct vnodeop_desc vop_kqfilter_desc;
978 extern struct vnodeop_desc vop_revoke_desc;
979 extern struct vnodeop_desc vop_mmap_desc;
980 extern struct vnodeop_desc vop_fsync_desc;
981 extern struct vnodeop_desc vop_remove_desc;
982 extern struct vnodeop_desc vop_link_desc;
983 extern struct vnodeop_desc vop_rename_desc;
984 extern struct vnodeop_desc vop_mkdir_desc;
985 extern struct vnodeop_desc vop_rmdir_desc;
986 extern struct vnodeop_desc vop_symlink_desc;
987 extern struct vnodeop_desc vop_readdir_desc;
988 extern struct vnodeop_desc vop_readlink_desc;
989 extern struct vnodeop_desc vop_inactive_desc;
990 extern struct vnodeop_desc vop_reclaim_desc;
991 extern struct vnodeop_desc vop_lock_desc;
992 extern struct vnodeop_desc vop_unlock_desc;
993 extern struct vnodeop_desc vop_bmap_desc;
994 extern struct vnodeop_desc vop_strategy_desc;
995 extern struct vnodeop_desc vop_print_desc;
996 extern struct vnodeop_desc vop_pathconf_desc;
997 extern struct vnodeop_desc vop_advlock_desc;
998 extern struct vnodeop_desc vop_balloc_desc;
999 extern struct vnodeop_desc vop_reallocblks_desc;
1000 extern struct vnodeop_desc vop_getpages_desc;
1001 extern struct vnodeop_desc vop_putpages_desc;
1002 extern struct vnodeop_desc vop_freeblks_desc;
1003 extern struct vnodeop_desc vop_bwrite_desc;
1004 extern struct vnodeop_desc vop_getacl_desc;
1005 extern struct vnodeop_desc vop_setacl_desc;
1006 extern struct vnodeop_desc vop_aclcheck_desc;
1007 extern struct vnodeop_desc vop_getextattr_desc;
1008 extern struct vnodeop_desc vop_setextattr_desc;
1009 extern struct vnodeop_desc vop_createvobject_desc;
1010 extern struct vnodeop_desc vop_destroyvobject_desc;
1011 extern struct vnodeop_desc vop_getvobject_desc;
1012 extern struct vnodeop_desc vop_mountctl_desc;
1014 extern struct vnodeop_desc vop_nresolve_desc;
1015 extern struct vnodeop_desc vop_nlookupdotdot_desc;
1016 extern struct vnodeop_desc vop_ncreate_desc;
1017 extern struct vnodeop_desc vop_nmkdir_desc;
1018 extern struct vnodeop_desc vop_nmknod_desc;
1019 extern struct vnodeop_desc vop_nlink_desc;
1020 extern struct vnodeop_desc vop_nsymlink_desc;
1021 extern struct vnodeop_desc vop_nwhiteout_desc;
1022 extern struct vnodeop_desc vop_nremove_desc;
1023 extern struct vnodeop_desc vop_nrmdir_desc;
1024 extern struct vnodeop_desc vop_nrename_desc;
1029 * VOP_*() convenience macros extract the operations vector and make the
1032 #define VOP_ISLOCKED(vp, td) \
1033 vop_islocked(*(vp)->v_ops, vp, td)
1034 #define VOP_OPEN(vp, mode, cred, fp, td) \
1035 vop_open(*(vp)->v_ops, vp, mode, cred, fp, td)
1036 #define VOP_CLOSE(vp, fflag, td) \
1037 vop_close(*(vp)->v_ops, vp, fflag, td)
1038 #define VOP_ACCESS(vp, mode, cred, td) \
1039 vop_access(*(vp)->v_ops, vp, mode, cred, td)
1040 #define VOP_GETATTR(vp, vap, td) \
1041 vop_getattr(*(vp)->v_ops, vp, vap, td)
1042 #define VOP_SETATTR(vp, vap, cred, td) \
1043 vop_setattr(*(vp)->v_ops, vp, vap, cred, td)
1044 #define VOP_READ(vp, uio, ioflag, cred) \
1045 vop_read(*(vp)->v_ops, vp, uio, ioflag, cred)
1046 #define VOP_WRITE(vp, uio, ioflag, cred) \
1047 vop_write(*(vp)->v_ops, vp, uio, ioflag, cred)
1048 #define VOP_LEASE(vp, td, cred, flag) \
1049 vop_lease(*(vp)->v_ops, vp, td, cred, flag)
1050 #define VOP_IOCTL(vp, command, data, fflag, cred, td) \
1051 vop_ioctl(*(vp)->v_ops, vp, command, data, fflag, cred, td)
1052 #define VOP_POLL(vp, events, cred, td) \
1053 vop_poll(*(vp)->v_ops, vp, events, cred, td)
1054 #define VOP_KQFILTER(vp, kn) \
1055 vop_kqfilter(*(vp)->v_ops, vp, kn)
1056 #define VOP_REVOKE(vp, flags) \
1057 vop_revoke(*(vp)->v_ops, vp, flags)
1058 #define VOP_MMAP(vp, fflags, cred, td) \
1059 vop_mmap(*(vp)->v_ops, vp, fflags, cred, td)
1060 #define VOP_FSYNC(vp, waitfor, td) \
1061 vop_fsync(*(vp)->v_ops, vp, waitfor, td)
1062 #define VOP_READDIR(vp, uio, cred, eofflag, ncookies, cookies) \
1063 vop_readdir(*(vp)->v_ops, vp, uio, cred, eofflag, ncookies, cookies)
1064 #define VOP_READLINK(vp, uio, cred) \
1065 vop_readlink(*(vp)->v_ops, vp, uio, cred)
1066 #define VOP_INACTIVE(vp, td) \
1067 vop_inactive(*(vp)->v_ops, vp, td)
1068 #define VOP_RECLAIM(vp, td) \
1069 vop_reclaim(*(vp)->v_ops, vp, td)
1070 #define VOP_LOCK(vp, flags, td) \
1071 vop_lock(*(vp)->v_ops, vp, flags, td)
1072 #define VOP_UNLOCK(vp, flags, td) \
1073 vop_unlock(*(vp)->v_ops, vp, flags, td)
1074 #define VOP_BMAP(vp, bn, vpp, bnp, runp, runb) \
1075 vop_bmap(*(vp)->v_ops, vp, bn, vpp, bnp, runp, runb)
1076 #define VOP_STRATEGY(vp, bp) \
1077 vop_strategy(*(vp)->v_ops, vp, bp)
1078 #define VOP_PRINT(vp) \
1079 vop_print(*(vp)->v_ops, vp)
1080 #define VOP_PATHCONF(vp, name, retval) \
1081 vop_pathconf(*(vp)->v_ops, vp, name, retval)
1082 #define VOP_ADVLOCK(vp, id, op, fl, flags) \
1083 vop_advlock(*(vp)->v_ops, vp, id, op, fl, flags)
1084 #define VOP_BALLOC(vp, offset, size, cred, flags, bpp) \
1085 vop_balloc(*(vp)->v_ops, vp, offset, size, cred, flags, bpp)
1086 #define VOP_REALLOCBLKS(vp, buflist) \
1087 vop_reallocblks(*(vp)->v_ops, vp, buflist)
1088 #define VOP_GETPAGES(vp, m, count, reqpage, off) \
1089 vop_getpages(*(vp)->v_ops, vp, m, count, reqpage, off)
1090 #define VOP_PUTPAGES(vp, m, count, sync, rtvals, off) \
1091 vop_putpages(*(vp)->v_ops, vp, m, count, sync, rtvals, off)
1092 #define VOP_FREEBLKS(vp, addr, length) \
1093 vop_freeblks(*(vp)->v_ops, vp, addr, length)
1094 #define VOP_BWRITE(vp, bp) \
1095 vop_bwrite(*(vp)->v_ops, vp, bp)
1096 #define VOP_GETACL(vp, type, aclp, cred, td) \
1097 vop_getacl(*(vp)->v_ops, vp, type, aclp, cred, td)
1098 #define VOP_SETACL(vp, type, aclp, cred, td) \
1099 vop_setacl(*(vp)->v_ops, vp, type, aclp, cred, td)
1100 #define VOP_ACLCHECK(vp, type, aclp, cred, td) \
1101 vop_aclcheck(*(vp)->v_ops, vp, type, aclp, cred, td)
1102 #define VOP_GETEXTATTR(vp, name, uio, cred, td) \
1103 vop_getextattr(*(vp)->v_ops, vp, name, uio, cred, td)
1104 #define VOP_SETEXTATTR(vp, name, uio, cred, td) \
1105 vop_setextattr(*(vp)->v_ops, vp, name, uio, cred, td)
1106 #define VOP_CREATEVOBJECT(vp, td) \
1107 vop_createvobject(*(vp)->v_ops, vp, td)
1108 #define VOP_DESTROYVOBJECT(vp) \
1109 vop_destroyvobject(*(vp)->v_ops, vp)
1110 #define VOP_GETVOBJECT(vp, objpp) \
1111 vop_getvobject(*(vp)->v_ops, vp, objpp)
1112 /* no VOP_VFSSET() */
1115 * 'OLD' VOP calls. These calls may only be made by the new API
1116 * compatibility functions in kern/vfs_default.c. Attempting to
1117 * call these functions directly will confuse the namecache. These
1118 * calls are deprecated and being removed from the system and from
1121 #define VOP_OLD_LOOKUP(dvp, vpp, cnp) \
1122 vop_lookup(*(dvp)->v_ops, dvp, vpp, cnp)
1123 #define VOP_OLD_CREATE(dvp, vpp, cnp, vap) \
1124 vop_create(*(dvp)->v_ops, dvp, vpp, cnp, vap)
1125 #define VOP_OLD_MKDIR(dvp, vpp, cnp, vap) \
1126 vop_mkdir(*(dvp)->v_ops, dvp, vpp, cnp, vap)
1127 #define VOP_OLD_MKNOD(dvp, vpp, cnp, vap) \
1128 vop_mknod(*(dvp)->v_ops, dvp, vpp, cnp, vap)
1129 #define VOP_OLD_LINK(tdvp, vp, cnp) \
1130 vop_link(*(tdvp)->v_ops, tdvp, vp, cnp)
1131 #define VOP_OLD_SYMLINK(dvp, vpp, cnp, vap, target) \
1132 vop_symlink(*(dvp)->v_ops, dvp, vpp, cnp, vap, target)
1133 #define VOP_OLD_WHITEOUT(dvp, cnp, flags) \
1134 vop_whiteout(*(dvp)->v_ops, dvp, cnp, flags)
1135 #define VOP_OLD_RENAME(fdvp, fvp, fcnp, tdvp, tvp, tcnp) \
1136 vop_rename(*(fdvp)->v_ops, fdvp, fvp, fcnp, tdvp, tvp, tcnp)
1137 #define VOP_OLD_RMDIR(dvp, vp, cnp) \
1138 vop_rmdir(*(dvp)->v_ops, dvp, vp, cnp)
1139 #define VOP_OLD_REMOVE(dvp, vp, cnp) \
1140 vop_remove(*(dvp)->v_ops, dvp, vp, cnp)
1143 * 'NEW' VOP calls. These calls use namespaces as an operational basis
1144 * rather then vnodes and replace the OLD calls. Eventually all VFS's
1145 * will support these calls. Those that do not fall through to compatibility
1146 * code in kern/vfs_default which does the magic required to call the old
1149 #define VOP_NRESOLVE(ncp, cred) \
1150 vop_nresolve((ncp)->nc_mount->mnt_vn_use_ops, ncp, cred)
1151 #define VOP_NCREATE(ncp, vpp, cred, vap) \
1152 vop_ncreate((ncp)->nc_mount->mnt_vn_use_ops, ncp, vpp, cred, vap)
1153 #define VOP_NMKDIR(ncp, vpp, cred, vap) \
1154 vop_nmkdir((ncp)->nc_mount->mnt_vn_use_ops, ncp, vpp, cred, vap)
1155 #define VOP_NMKNOD(ncp, vpp, cred, vap) \
1156 vop_nmknod((ncp)->nc_mount->mnt_vn_use_ops, ncp, vpp, cred, vap)
1157 #define VOP_NLINK(ncp, vp, cred) \
1158 vop_nlink((ncp)->nc_mount->mnt_vn_use_ops, ncp, vp, cred)
1159 #define VOP_NSYMLINK(ncp, vpp, cred, vap, target) \
1160 vop_nsymlink((ncp)->nc_mount->mnt_vn_use_ops, ncp, vpp, cred, vap, target)
1161 #define VOP_NWHITEOUT(ncp, cred, flags) \
1162 vop_nwhiteout((ncp)->nc_mount->mnt_vn_use_ops, ncp, cred, flags)
1163 #define VOP_NRENAME(fncp, tncp, cred) \
1164 vop_nrename((fncp)->nc_mount->mnt_vn_use_ops, fncp, tncp, cred)
1165 #define VOP_NRMDIR(ncp, cred) \
1166 vop_nrmdir((ncp)->nc_mount->mnt_vn_use_ops, ncp, cred)
1167 #define VOP_NREMOVE(ncp, cred) \
1168 vop_nremove((ncp)->nc_mount->mnt_vn_use_ops, ncp, cred)