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 1.17 2006/03/27 16:18:35 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;
305 struct vop_lock_args {
306 struct vop_generic_args a_head;
312 struct vop_unlock_args {
313 struct vop_generic_args a_head;
319 struct vop_bmap_args {
320 struct vop_generic_args a_head;
323 struct vnode **a_vpp;
329 struct vop_strategy_args {
330 struct vop_generic_args a_head;
335 struct vop_print_args {
336 struct vop_generic_args a_head;
340 struct vop_pathconf_args {
341 struct vop_generic_args a_head;
344 register_t *a_retval;
347 struct vop_advlock_args {
348 struct vop_generic_args a_head;
356 struct vop_balloc_args {
357 struct vop_generic_args a_head;
361 struct ucred *a_cred;
366 struct vop_reallocblks_args {
367 struct vop_generic_args a_head;
369 struct cluster_save *a_buflist;
372 struct vop_getpages_args {
373 struct vop_generic_args a_head;
375 struct vm_page **a_m;
378 vm_ooffset_t a_offset;
381 struct vop_putpages_args {
382 struct vop_generic_args a_head;
384 struct vm_page **a_m;
388 vm_ooffset_t a_offset;
391 struct vop_freeblks_args {
392 struct vop_generic_args a_head;
398 struct vop_bwrite_args {
399 struct vop_generic_args a_head;
404 struct vop_getacl_args {
405 struct vop_generic_args a_head;
409 struct ucred *a_cred;
413 struct vop_setacl_args {
414 struct vop_generic_args a_head;
418 struct ucred *a_cred;
422 struct vop_aclcheck_args {
423 struct vop_generic_args a_head;
427 struct ucred *a_cred;
431 struct vop_getextattr_args {
432 struct vop_generic_args a_head;
436 struct ucred *a_cred;
440 struct vop_setextattr_args {
441 struct vop_generic_args a_head;
445 struct ucred *a_cred;
449 struct vop_createvobject_args {
450 struct vop_generic_args a_head;
455 struct vop_destroyvobject_args {
456 struct vop_generic_args a_head;
460 struct vop_getvobject_args {
461 struct vop_generic_args a_head;
463 struct vm_object **a_objpp;
466 struct vop_mountctl_args {
467 struct vop_generic_args a_head;
480 struct vop_nresolve_args {
481 struct vop_generic_args a_head;
482 struct namecache *a_ncp;
483 struct ucred *a_cred;
486 struct vop_nlookupdotdot_args {
487 struct vop_generic_args a_head;
489 struct vnode **a_vpp;
490 struct ucred *a_cred;
493 struct vop_ncreate_args {
494 struct vop_generic_args a_head;
495 struct namecache *a_ncp; /* locked namespace */
496 struct vnode **a_vpp; /* returned refd & locked */
497 struct ucred *a_cred;
501 struct vop_nmkdir_args {
502 struct vop_generic_args a_head;
503 struct namecache *a_ncp; /* locked namespace */
504 struct vnode **a_vpp; /* returned refd & locked */
505 struct ucred *a_cred;
509 struct vop_nmknod_args {
510 struct vop_generic_args a_head;
511 struct namecache *a_ncp;
512 struct vnode **a_vpp;
513 struct ucred *a_cred;
517 struct vop_nlink_args {
518 struct vop_generic_args a_head;
519 struct namecache *a_ncp;
521 struct ucred *a_cred;
524 struct vop_nsymlink_args {
525 struct vop_generic_args a_head;
526 struct namecache *a_ncp;
527 struct vnode **a_vpp;
528 struct ucred *a_cred;
533 struct vop_nwhiteout_args {
534 struct vop_generic_args a_head;
535 struct namecache *a_ncp;
536 struct ucred *a_cred;
540 struct vop_nremove_args {
541 struct vop_generic_args a_head;
542 struct namecache *a_ncp; /* locked namespace */
543 struct ucred *a_cred;
546 struct vop_nrmdir_args {
547 struct vop_generic_args a_head;
548 struct namecache *a_ncp; /* locked namespace */
549 struct ucred *a_cred;
552 struct vop_nrename_args {
553 struct vop_generic_args a_head;
554 struct namecache *a_fncp; /* locked namespace / from */
555 struct namecache *a_tncp; /* locked namespace / to */
556 struct ucred *a_cred;
560 * This structure is the post-compiled VOP operations vector. vop_ops are
561 * typically per-mount entities. The first section is used by our vop_*()
562 * function wrappers to implement hooks for per-mount management functions
563 * such as journaling and cache coherency protocols. The second section is
564 * the function dispatch for the VFSs. The functions are supposed to run
565 * in the context of the VFS's thread (if it has one) and should not be
566 * directly called from random kernel code. Note that VOCALL()s are direct
567 * calls used for chaining vop_ops structures from a VFS context.
570 struct vop_ops *vv_new; /* vfs_recalc_vnodeops() only */
571 struct mount *vv_mount;
573 int vv_flags; /* see VVF_* flags below */
578 int vv_reserved[62]; /* (temporary) reduce recompile pain */
580 #define vop_ops_first_field vop_default
581 int (*vop_default)(struct vop_generic_args *);
582 int (*vop_islocked)(struct vop_islocked_args *);
583 int (*vop_old_lookup)(struct vop_old_lookup_args *);
584 int (*vop_unused03)(void *);
585 int (*vop_old_create)(struct vop_old_create_args *);
586 int (*vop_old_whiteout)(struct vop_old_whiteout_args *);
587 int (*vop_old_mknod)(struct vop_old_mknod_args *);
588 int (*vop_open)(struct vop_open_args *);
589 int (*vop_close)(struct vop_close_args *);
590 int (*vop_access)(struct vop_access_args *);
591 int (*vop_getattr)(struct vop_getattr_args *);
592 int (*vop_setattr)(struct vop_setattr_args *);
593 int (*vop_read)(struct vop_read_args *);
594 int (*vop_write)(struct vop_write_args *);
595 int (*vop_unused04)(void *);
596 int (*vop_ioctl)(struct vop_ioctl_args *);
597 int (*vop_poll)(struct vop_poll_args *);
598 int (*vop_kqfilter)(struct vop_kqfilter_args *);
599 int (*vop_revoke)(struct vop_revoke_args *);
600 int (*vop_mmap)(struct vop_mmap_args *);
601 int (*vop_fsync)(struct vop_fsync_args *);
602 int (*vop_old_remove)(struct vop_old_remove_args *);
603 int (*vop_old_link)(struct vop_old_link_args *);
604 int (*vop_old_rename)(struct vop_old_rename_args *);
605 int (*vop_old_mkdir)(struct vop_old_mkdir_args *);
606 int (*vop_old_rmdir)(struct vop_old_rmdir_args *);
607 int (*vop_old_symlink)(struct vop_old_symlink_args *);
608 int (*vop_readdir)(struct vop_readdir_args *);
609 int (*vop_readlink)(struct vop_readlink_args *);
610 int (*vop_inactive)(struct vop_inactive_args *);
611 int (*vop_reclaim)(struct vop_reclaim_args *);
612 int (*vop_lock)(struct vop_lock_args *);
613 int (*vop_unlock)(struct vop_unlock_args *);
614 int (*vop_bmap)(struct vop_bmap_args *);
615 int (*vop_strategy)(struct vop_strategy_args *);
616 int (*vop_print)(struct vop_print_args *);
617 int (*vop_pathconf)(struct vop_pathconf_args *);
618 int (*vop_advlock)(struct vop_advlock_args *);
619 int (*vop_balloc)(struct vop_balloc_args *);
620 int (*vop_reallocblks)(struct vop_reallocblks_args *);
621 int (*vop_getpages)(struct vop_getpages_args *);
622 int (*vop_putpages)(struct vop_putpages_args *);
623 int (*vop_freeblks)(struct vop_freeblks_args *);
624 int (*vop_bwrite)(struct vop_bwrite_args *);
625 int (*vop_getacl)(struct vop_getacl_args *);
626 int (*vop_setacl)(struct vop_setacl_args *);
627 int (*vop_aclcheck)(struct vop_aclcheck_args *);
628 int (*vop_getextattr)(struct vop_getextattr_args *);
629 int (*vop_setextattr)(struct vop_setextattr_args *);
630 int (*vop_createvobject)(struct vop_createvobject_args *);
631 int (*vop_destroyvobject)(struct vop_destroyvobject_args *);
632 int (*vop_getvobject)(struct vop_getvobject_args *);
633 int (*vop_mountctl)(struct vop_mountctl_args *);
635 int (*vop_nresolve)(struct vop_nresolve_args *);
636 int (*vop_nlookupdotdot)(struct vop_nlookupdotdot_args *);
637 int (*vop_ncreate)(struct vop_ncreate_args *);
638 int (*vop_nmkdir)(struct vop_nmkdir_args *);
639 int (*vop_nmknod)(struct vop_nmknod_args *);
640 int (*vop_nlink)(struct vop_nlink_args *);
641 int (*vop_nsymlink)(struct vop_nsymlink_args *);
642 int (*vop_nwhiteout)(struct vop_nwhiteout_args *);
643 int (*vop_nremove)(struct vop_nremove_args *);
644 int (*vop_nrmdir)(struct vop_nrmdir_args *);
645 int (*vop_nrename)(struct vop_nrename_args *);
646 #define vop_ops_last_field vop_nrename
649 #define VVF_JOURNAL_LAYER 0x0001
650 #define VVF_COHERENCY_LAYER 0x0002
651 #define VVF_SUPPORTS_FSMID 0x0004
652 #define VVF_UNUSED_08 0x0008
653 #define VVF_NOATIME 0x0010 /* FUTURE */
654 #define VVF_RDONLY 0x0020 /* FUTURE */
655 #define VVF_NOCLUSTER 0x0040 /* FUTURE */
656 #define VVF_SUIDDIR 0x0080 /* FUTURE */
659 * vop_mountctl() operations
661 #define VFSSET_DETACH 0
662 #define VFSSET_ATTACH 1
665 * Kernel VOP arguments union, suitable for malloc / embedding in other
666 * structures. The vop_args_union can hold any VOP call argument structure.
667 * Note that vu_head is broken out.
669 union vop_args_union {
670 struct vop_generic_args vu_head;
671 struct vop_generic_args vu_default;
672 struct vop_islocked_args vu_islocked;
673 struct vop_old_lookup_args vu_lookup;
674 struct vop_old_create_args vu_create;
675 struct vop_old_whiteout_args vu_whiteout;
676 struct vop_old_mknod_args vu_mknod;
677 struct vop_open_args vu_open;
678 struct vop_close_args vu_close;
679 struct vop_access_args vu_access;
680 struct vop_getattr_args vu_getattr;
681 struct vop_setattr_args vu_setattr;
682 struct vop_read_args vu_read;
683 struct vop_write_args vu_write;
684 struct vop_ioctl_args vu_ioctl;
685 struct vop_poll_args vu_poll;
686 struct vop_kqfilter_args vu_kqfilter;
687 struct vop_revoke_args vu_revoke;
688 struct vop_mmap_args vu_mmap;
689 struct vop_fsync_args vu_fsync;
690 struct vop_old_remove_args vu_remove;
691 struct vop_old_link_args vu_link;
692 struct vop_old_rename_args vu_rename;
693 struct vop_old_mkdir_args vu_mkdir;
694 struct vop_old_rmdir_args vu_rmdir;
695 struct vop_old_symlink_args vu_symlink;
696 struct vop_readdir_args vu_readdir;
697 struct vop_readlink_args vu_readlink;
698 struct vop_inactive_args vu_inactive;
699 struct vop_reclaim_args vu_reclaim;
700 struct vop_lock_args vu_lock;
701 struct vop_unlock_args vu_unlock;
702 struct vop_bmap_args vu_bmap;
703 struct vop_strategy_args vu_strategy;
704 struct vop_print_args vu_print;
705 struct vop_pathconf_args vu_pathconf;
706 struct vop_advlock_args vu_advlock;
707 struct vop_balloc_args vu_balloc;
708 struct vop_reallocblks_args vu_reallocblks;
709 struct vop_getpages_args vu_getpages;
710 struct vop_putpages_args vu_putpages;
711 struct vop_freeblks_args vu_freeblks;
712 struct vop_bwrite_args vu_bwrite;
713 struct vop_getacl_args vu_getacl;
714 struct vop_setacl_args vu_setacl;
715 struct vop_aclcheck_args vu_aclcheck;
716 struct vop_getextattr_args vu_getextattr;
717 struct vop_setextattr_args vu_setextattr;
718 struct vop_createvobject_args vu_createvobject;
719 struct vop_destroyvobject_args vu_destroyvobject;
720 struct vop_getvobject_args vu_getvobject;
721 struct vop_mountctl_args vu_mountctl;
723 struct vop_nresolve_args vu_nresolve;
724 struct vop_nlookupdotdot_args vu_nlookupdotdot;
725 struct vop_ncreate_args vu_ncreate;
726 struct vop_nmkdir_args vu_nmkdir;
727 struct vop_nmknod_args vu_nmknod;
728 struct vop_nlink_args vu_nlink;
729 struct vop_nsymlink_args vu_nsymlink;
730 struct vop_nwhiteout_args vu_nwhiteout;
731 struct vop_nremove_args vu_nremove;
732 struct vop_nrmdir_args vu_nrmdir;
733 struct vop_nrename_args vu_nrename;
739 * Kernel VOP call wrappers. These wrappers are responsible for wrapping
740 * the arguments in the appropriate VOP arguments structure, sending the
741 * message, and waiting for a reply. All kernel and VFS code should generally
742 * call these wrappers rather then attempt to call the operations vector
743 * routine directly in order to allow DragonFly to properly wrap the operation
744 * in a message and dispatch it to the correct thread.
746 int vop_islocked(struct vop_ops *ops, struct vnode *vp, struct thread *td);
747 int vop_old_lookup(struct vop_ops *ops, struct vnode *dvp,
748 struct vnode **vpp, struct componentname *cnp);
749 int vop_old_create(struct vop_ops *ops, struct vnode *dvp,
750 struct vnode **vpp, struct componentname *cnp,
752 int vop_old_whiteout(struct vop_ops *ops, struct vnode *dvp,
753 struct componentname *cnp, int flags);
754 int vop_old_mknod(struct vop_ops *ops, struct vnode *dvp,
755 struct vnode **vpp, struct componentname *cnp,
757 int vop_open(struct vop_ops *ops, struct vnode *vp, int mode,
758 struct ucred *cred, struct file *file, struct thread *td);
759 int vop_close(struct vop_ops *ops, struct vnode *vp,
760 int fflag, struct thread *td);
761 int vop_access(struct vop_ops *ops, struct vnode *vp, int mode,
762 struct ucred *cred, struct thread *td);
763 int vop_getattr(struct vop_ops *ops, struct vnode *vp, struct vattr *vap,
765 int vop_setattr(struct vop_ops *ops, struct vnode *vp, struct vattr *vap,
766 struct ucred *cred, struct thread *td);
767 int vop_read(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
768 int ioflag, struct ucred *cred);
769 int vop_write(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
770 int ioflag, struct ucred *cred);
771 int vop_ioctl(struct vop_ops *ops, struct vnode *vp, u_long command,
772 caddr_t data, int fflag,
773 struct ucred *cred, struct thread *td);
774 int vop_poll(struct vop_ops *ops, struct vnode *vp, int events,
775 struct ucred *cred, struct thread *td);
776 int vop_kqfilter(struct vop_ops *ops, struct vnode *vp, struct knote *kn);
777 int vop_revoke(struct vop_ops *ops, struct vnode *vp, int flags);
778 int vop_mmap(struct vop_ops *ops, struct vnode *vp, int fflags,
779 struct ucred *cred, struct thread *td);
780 int vop_fsync(struct vop_ops *ops, struct vnode *vp, int waitfor,
782 int vop_old_remove(struct vop_ops *ops, struct vnode *dvp,
783 struct vnode *vp, struct componentname *cnp);
784 int vop_old_link(struct vop_ops *ops, struct vnode *tdvp,
785 struct vnode *vp, struct componentname *cnp);
786 int vop_old_rename(struct vop_ops *ops, struct vnode *fdvp,
787 struct vnode *fvp, struct componentname *fcnp,
788 struct vnode *tdvp, struct vnode *tvp,
789 struct componentname *tcnp);
790 int vop_old_mkdir(struct vop_ops *ops, struct vnode *dvp,
791 struct vnode **vpp, struct componentname *cnp,
793 int vop_old_rmdir(struct vop_ops *ops, struct vnode *dvp,
794 struct vnode *vp, struct componentname *cnp);
795 int vop_old_symlink(struct vop_ops *ops, struct vnode *dvp,
796 struct vnode **vpp, struct componentname *cnp,
797 struct vattr *vap, char *target);
798 int vop_readdir(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
799 struct ucred *cred, int *eofflag,
800 int *ncookies, u_long **cookies);
801 int vop_readlink(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
803 int vop_inactive(struct vop_ops *ops, struct vnode *vp, struct thread *td);
804 int vop_reclaim(struct vop_ops *ops, struct vnode *vp, int retflags,
806 int vop_lock(struct vop_ops *ops, struct vnode *vp,
807 int flags, struct thread *td);
808 int vop_unlock(struct vop_ops *ops, struct vnode *vp,
809 int flags, struct thread *td);
810 int vop_bmap(struct vop_ops *ops, struct vnode *vp, off_t loffset,
811 struct vnode **vpp, off_t *doffsetp, int *runp, int *runb);
812 int vop_strategy(struct vop_ops *ops, struct vnode *vp, struct bio *bio);
813 int vop_print(struct vop_ops *ops, struct vnode *vp);
814 int vop_pathconf(struct vop_ops *ops, struct vnode *vp, int name,
816 int vop_advlock(struct vop_ops *ops, struct vnode *vp, caddr_t id, int op,
817 struct flock *fl, int flags);
818 int vop_balloc(struct vop_ops *ops, struct vnode *vp, off_t startoffset,
819 int size, struct ucred *cred, int flags,
821 int vop_reallocblks(struct vop_ops *ops, struct vnode *vp,
822 struct cluster_save *buflist);
823 int vop_getpages(struct vop_ops *ops, struct vnode *vp, struct vm_page **m,
824 int count, int reqpage, vm_ooffset_t offset);
825 int vop_putpages(struct vop_ops *ops, struct vnode *vp, struct vm_page **m,
826 int count, int sync, int *rtvals, vm_ooffset_t offset);
827 int vop_freeblks(struct vop_ops *ops, struct vnode *vp,
828 off_t offset, int length);
829 int vop_bwrite(struct vop_ops *ops, struct vnode *vp, struct buf *bp);
830 int vop_getacl(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
831 struct acl *aclp, struct ucred *cred, struct thread *td);
832 int vop_setacl(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
833 struct acl *aclp, struct ucred *cred, struct thread *td);
834 int vop_aclcheck(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
835 struct acl *aclp, struct ucred *cred, struct thread *td);
836 int vop_getextattr(struct vop_ops *ops, struct vnode *vp, char *name,
837 struct uio *uio, struct ucred *cred, struct thread *td);
838 int vop_setextattr(struct vop_ops *ops, struct vnode *vp, char *name,
839 struct uio *uio, struct ucred *cred, struct thread *td);
840 int vop_createvobject(struct vop_ops *ops,
841 struct vnode *vp, struct thread *td);
842 int vop_destroyvobject(struct vop_ops *ops, struct vnode *vp);
843 int vop_getvobject(struct vop_ops *ops,
844 struct vnode *vp, struct vm_object **objpp);
845 int vop_mountctl(struct vop_ops *ops, int op, struct file *fp,
846 const void *ctl, int ctllen, void *buf, int buflen, int *res);
847 int vop_nresolve(struct vop_ops *ops, struct namecache *ncp,
849 int vop_nlookupdotdot(struct vop_ops *ops, struct vnode *dvp,
850 struct vnode **vpp, struct ucred *cred);
851 int vop_ncreate(struct vop_ops *ops, struct namecache *ncp,
852 struct vnode **vpp, struct ucred *cred, struct vattr *vap);
853 int vop_nmkdir(struct vop_ops *ops, struct namecache *ncp,
854 struct vnode **vpp, struct ucred *cred, struct vattr *vap);
855 int vop_nmknod(struct vop_ops *ops, struct namecache *ncp,
856 struct vnode **vpp, struct ucred *cred, struct vattr *vap);
857 int vop_nlink(struct vop_ops *ops, struct namecache *ncp, struct vnode *vp,
859 int vop_nsymlink(struct vop_ops *ops, struct namecache *ncp,
860 struct vnode **vpp, struct ucred *cred,
861 struct vattr *vap, char *target);
862 int vop_nwhiteout(struct vop_ops *ops, struct namecache *ncp,
863 struct ucred *cred, int flags);
864 int vop_nremove(struct vop_ops *ops, struct namecache *ncp,
866 int vop_nrmdir(struct vop_ops *ops, struct namecache *ncp,
868 int vop_nrename(struct vop_ops *ops, struct namecache *fncp,
869 struct namecache *tncp, struct ucred *cred);
872 * Kernel VOP forwarding wrappers. These are called when a VFS such as
873 * nullfs or unionfs needs to push down into another VFS, changing the
874 * a_ops pointer and consequentially necessitating additional
877 * Note that this is different from vop_ops chaining within the same
878 * filesystem. When a filesystem chains a vop_ops it just uses VOCALLs.
880 int vop_vnoperate_ap(struct vop_generic_args *ap);
881 int vop_cache_operate_ap(struct vop_generic_args *ap);
882 int vop_journal_operate_ap(struct vop_generic_args *ap);
883 int vop_islocked_ap(struct vop_islocked_args *ap);
884 int vop_old_lookup_ap(struct vop_old_lookup_args *ap);
885 int vop_old_create_ap(struct vop_old_create_args *ap);
886 int vop_old_whiteout_ap(struct vop_old_whiteout_args *ap);
887 int vop_old_mknod_ap(struct vop_old_mknod_args *ap);
888 int vop_open_ap(struct vop_open_args *ap);
889 int vop_close_ap(struct vop_close_args *ap);
890 int vop_access_ap(struct vop_access_args *ap);
891 int vop_getattr_ap(struct vop_getattr_args *ap);
892 int vop_setattr_ap(struct vop_setattr_args *ap);
893 int vop_read_ap(struct vop_read_args *ap);
894 int vop_write_ap(struct vop_write_args *ap);
895 int vop_ioctl_ap(struct vop_ioctl_args *ap);
896 int vop_poll_ap(struct vop_poll_args *ap);
897 int vop_kqfilter_ap(struct vop_kqfilter_args *ap);
898 int vop_revoke_ap(struct vop_revoke_args *ap);
899 int vop_mmap_ap(struct vop_mmap_args *ap);
900 int vop_fsync_ap(struct vop_fsync_args *ap);
901 int vop_old_remove_ap(struct vop_old_remove_args *ap);
902 int vop_old_link_ap(struct vop_old_link_args *ap);
903 int vop_old_rename_ap(struct vop_old_rename_args *ap);
904 int vop_old_mkdir_ap(struct vop_old_mkdir_args *ap);
905 int vop_old_rmdir_ap(struct vop_old_rmdir_args *ap);
906 int vop_old_symlink_ap(struct vop_old_symlink_args *ap);
907 int vop_readdir_ap(struct vop_readdir_args *ap);
908 int vop_readlink_ap(struct vop_readlink_args *ap);
909 int vop_inactive_ap(struct vop_inactive_args *ap);
910 int vop_reclaim_ap(struct vop_reclaim_args *ap);
911 int vop_lock_ap(struct vop_lock_args *ap);
912 int vop_unlock_ap(struct vop_unlock_args *ap);
913 int vop_bmap_ap(struct vop_bmap_args *ap);
914 int vop_strategy_ap(struct vop_strategy_args *ap);
915 int vop_print_ap(struct vop_print_args *ap);
916 int vop_pathconf_ap(struct vop_pathconf_args *ap);
917 int vop_advlock_ap(struct vop_advlock_args *ap);
918 int vop_balloc_ap(struct vop_balloc_args *ap);
919 int vop_reallocblks_ap(struct vop_reallocblks_args *ap);
920 int vop_getpages_ap(struct vop_getpages_args *ap);
921 int vop_putpages_ap(struct vop_putpages_args *ap);
922 int vop_freeblks_ap(struct vop_freeblks_args *ap);
923 int vop_bwrite_ap(struct vop_bwrite_args *ap);
924 int vop_getacl_ap(struct vop_getacl_args *ap);
925 int vop_setacl_ap(struct vop_setacl_args *ap);
926 int vop_aclcheck_ap(struct vop_aclcheck_args *ap);
927 int vop_getextattr_ap(struct vop_getextattr_args *ap);
928 int vop_setextattr_ap(struct vop_setextattr_args *ap);
929 int vop_createvobject_ap(struct vop_createvobject_args *ap);
930 int vop_destroyvobject_ap(struct vop_destroyvobject_args *ap);
931 int vop_getvobject_ap(struct vop_getvobject_args *ap);
932 int vop_mountctl_ap(struct vop_mountctl_args *ap);
934 int vop_nresolve_ap(struct vop_nresolve_args *ap);
935 int vop_nlookupdotdot_ap(struct vop_nlookupdotdot_args *ap);
936 int vop_ncreate_ap(struct vop_ncreate_args *ap);
937 int vop_nmkdir_ap(struct vop_nmkdir_args *ap);
938 int vop_nmknod_ap(struct vop_nmknod_args *ap);
939 int vop_nlink_ap(struct vop_nlink_args *ap);
940 int vop_nsymlink_ap(struct vop_nsymlink_args *ap);
941 int vop_nwhiteout_ap(struct vop_nwhiteout_args *ap);
942 int vop_nremove_ap(struct vop_nremove_args *ap);
943 int vop_nrmdir_ap(struct vop_nrmdir_args *ap);
944 int vop_nrename_ap(struct vop_nrename_args *ap);
947 * VOP operations descriptor. This is used by the vop_ops compiler
948 * to convert VFS vector arrays (typically in vfs/blah/blah_vnops.c)
949 * into a vop_ops operations vector.
951 extern struct vnodeop_desc vop_default_desc;
952 extern struct vnodeop_desc vop_islocked_desc;
953 extern struct vnodeop_desc vop_old_lookup_desc;
954 extern struct vnodeop_desc vop_old_create_desc;
955 extern struct vnodeop_desc vop_old_whiteout_desc;
956 extern struct vnodeop_desc vop_old_mknod_desc;
957 extern struct vnodeop_desc vop_open_desc;
958 extern struct vnodeop_desc vop_close_desc;
959 extern struct vnodeop_desc vop_access_desc;
960 extern struct vnodeop_desc vop_getattr_desc;
961 extern struct vnodeop_desc vop_setattr_desc;
962 extern struct vnodeop_desc vop_read_desc;
963 extern struct vnodeop_desc vop_write_desc;
964 extern struct vnodeop_desc vop_ioctl_desc;
965 extern struct vnodeop_desc vop_poll_desc;
966 extern struct vnodeop_desc vop_kqfilter_desc;
967 extern struct vnodeop_desc vop_revoke_desc;
968 extern struct vnodeop_desc vop_mmap_desc;
969 extern struct vnodeop_desc vop_fsync_desc;
970 extern struct vnodeop_desc vop_old_remove_desc;
971 extern struct vnodeop_desc vop_old_link_desc;
972 extern struct vnodeop_desc vop_old_rename_desc;
973 extern struct vnodeop_desc vop_old_mkdir_desc;
974 extern struct vnodeop_desc vop_old_rmdir_desc;
975 extern struct vnodeop_desc vop_old_symlink_desc;
976 extern struct vnodeop_desc vop_readdir_desc;
977 extern struct vnodeop_desc vop_readlink_desc;
978 extern struct vnodeop_desc vop_inactive_desc;
979 extern struct vnodeop_desc vop_reclaim_desc;
980 extern struct vnodeop_desc vop_lock_desc;
981 extern struct vnodeop_desc vop_unlock_desc;
982 extern struct vnodeop_desc vop_bmap_desc;
983 extern struct vnodeop_desc vop_strategy_desc;
984 extern struct vnodeop_desc vop_print_desc;
985 extern struct vnodeop_desc vop_pathconf_desc;
986 extern struct vnodeop_desc vop_advlock_desc;
987 extern struct vnodeop_desc vop_balloc_desc;
988 extern struct vnodeop_desc vop_reallocblks_desc;
989 extern struct vnodeop_desc vop_getpages_desc;
990 extern struct vnodeop_desc vop_putpages_desc;
991 extern struct vnodeop_desc vop_freeblks_desc;
992 extern struct vnodeop_desc vop_bwrite_desc;
993 extern struct vnodeop_desc vop_getacl_desc;
994 extern struct vnodeop_desc vop_setacl_desc;
995 extern struct vnodeop_desc vop_aclcheck_desc;
996 extern struct vnodeop_desc vop_getextattr_desc;
997 extern struct vnodeop_desc vop_setextattr_desc;
998 extern struct vnodeop_desc vop_createvobject_desc;
999 extern struct vnodeop_desc vop_destroyvobject_desc;
1000 extern struct vnodeop_desc vop_getvobject_desc;
1001 extern struct vnodeop_desc vop_mountctl_desc;
1003 extern struct vnodeop_desc vop_nresolve_desc;
1004 extern struct vnodeop_desc vop_nlookupdotdot_desc;
1005 extern struct vnodeop_desc vop_ncreate_desc;
1006 extern struct vnodeop_desc vop_nmkdir_desc;
1007 extern struct vnodeop_desc vop_nmknod_desc;
1008 extern struct vnodeop_desc vop_nlink_desc;
1009 extern struct vnodeop_desc vop_nsymlink_desc;
1010 extern struct vnodeop_desc vop_nwhiteout_desc;
1011 extern struct vnodeop_desc vop_nremove_desc;
1012 extern struct vnodeop_desc vop_nrmdir_desc;
1013 extern struct vnodeop_desc vop_nrename_desc;
1018 * VOP_*() convenience macros extract the operations vector and make the
1021 #define VOP_ISLOCKED(vp, td) \
1022 vop_islocked(*(vp)->v_ops, vp, td)
1023 #define VOP_OPEN(vp, mode, cred, fp, td) \
1024 vop_open(*(vp)->v_ops, vp, mode, cred, fp, td)
1025 #define VOP_CLOSE(vp, fflag, td) \
1026 vop_close(*(vp)->v_ops, vp, fflag, td)
1027 #define VOP_ACCESS(vp, mode, cred, td) \
1028 vop_access(*(vp)->v_ops, vp, mode, cred, td)
1029 #define VOP_GETATTR(vp, vap, td) \
1030 vop_getattr(*(vp)->v_ops, vp, vap, td)
1031 #define VOP_SETATTR(vp, vap, cred, td) \
1032 vop_setattr(*(vp)->v_ops, vp, vap, cred, td)
1033 #define VOP_READ(vp, uio, ioflag, cred) \
1034 vop_read(*(vp)->v_ops, vp, uio, ioflag, cred)
1035 #define VOP_WRITE(vp, uio, ioflag, cred) \
1036 vop_write(*(vp)->v_ops, vp, uio, ioflag, cred)
1037 #define VOP_IOCTL(vp, command, data, fflag, cred, td) \
1038 vop_ioctl(*(vp)->v_ops, vp, command, data, fflag, cred, td)
1039 #define VOP_POLL(vp, events, cred, td) \
1040 vop_poll(*(vp)->v_ops, vp, events, cred, td)
1041 #define VOP_KQFILTER(vp, kn) \
1042 vop_kqfilter(*(vp)->v_ops, vp, kn)
1043 #define VOP_REVOKE(vp, flags) \
1044 vop_revoke(*(vp)->v_ops, vp, flags)
1045 #define VOP_MMAP(vp, fflags, cred, td) \
1046 vop_mmap(*(vp)->v_ops, vp, fflags, cred, td)
1047 #define VOP_FSYNC(vp, waitfor, td) \
1048 vop_fsync(*(vp)->v_ops, vp, waitfor, td)
1049 #define VOP_READDIR(vp, uio, cred, eofflag, ncookies, cookies) \
1050 vop_readdir(*(vp)->v_ops, vp, uio, cred, eofflag, ncookies, cookies)
1051 #define VOP_READLINK(vp, uio, cred) \
1052 vop_readlink(*(vp)->v_ops, vp, uio, cred)
1053 #define VOP_INACTIVE(vp, td) \
1054 vop_inactive(*(vp)->v_ops, vp, td)
1055 #define VOP_RECLAIM(vp, retflags, td) \
1056 vop_reclaim(*(vp)->v_ops, vp, retflags, td)
1057 #define VOP_LOCK(vp, flags, td) \
1058 vop_lock(*(vp)->v_ops, vp, flags, td)
1059 #define VOP_UNLOCK(vp, flags, td) \
1060 vop_unlock(*(vp)->v_ops, vp, flags, td)
1061 #define VOP_BMAP(vp, loff, vpp, doffp, runp, runb) \
1062 vop_bmap(*(vp)->v_ops, vp, loff, vpp, doffp, runp, runb)
1063 #define VOP_PRINT(vp) \
1064 vop_print(*(vp)->v_ops, vp)
1065 #define VOP_PATHCONF(vp, name, retval) \
1066 vop_pathconf(*(vp)->v_ops, vp, name, retval)
1067 #define VOP_ADVLOCK(vp, id, op, fl, flags) \
1068 vop_advlock(*(vp)->v_ops, vp, id, op, fl, flags)
1069 #define VOP_BALLOC(vp, offset, size, cred, flags, bpp) \
1070 vop_balloc(*(vp)->v_ops, vp, offset, size, cred, flags, bpp)
1071 #define VOP_REALLOCBLKS(vp, buflist) \
1072 vop_reallocblks(*(vp)->v_ops, vp, buflist)
1073 #define VOP_GETPAGES(vp, m, count, reqpage, off) \
1074 vop_getpages(*(vp)->v_ops, vp, m, count, reqpage, off)
1075 #define VOP_PUTPAGES(vp, m, count, sync, rtvals, off) \
1076 vop_putpages(*(vp)->v_ops, vp, m, count, sync, rtvals, off)
1077 #define VOP_FREEBLKS(vp, offset, length) \
1078 vop_freeblks(*(vp)->v_ops, vp, offset, length)
1079 #define VOP_BWRITE(vp, bp) \
1080 vop_bwrite(*(vp)->v_ops, vp, bp)
1081 #define VOP_GETACL(vp, type, aclp, cred, td) \
1082 vop_getacl(*(vp)->v_ops, vp, type, aclp, cred, td)
1083 #define VOP_SETACL(vp, type, aclp, cred, td) \
1084 vop_setacl(*(vp)->v_ops, vp, type, aclp, cred, td)
1085 #define VOP_ACLCHECK(vp, type, aclp, cred, td) \
1086 vop_aclcheck(*(vp)->v_ops, vp, type, aclp, cred, td)
1087 #define VOP_GETEXTATTR(vp, name, uio, cred, td) \
1088 vop_getextattr(*(vp)->v_ops, vp, name, uio, cred, td)
1089 #define VOP_SETEXTATTR(vp, name, uio, cred, td) \
1090 vop_setextattr(*(vp)->v_ops, vp, name, uio, cred, td)
1091 #define VOP_CREATEVOBJECT(vp, td) \
1092 vop_createvobject(*(vp)->v_ops, vp, td)
1093 #define VOP_DESTROYVOBJECT(vp) \
1094 vop_destroyvobject(*(vp)->v_ops, vp)
1095 #define VOP_GETVOBJECT(vp, objpp) \
1096 vop_getvobject(*(vp)->v_ops, vp, objpp)
1097 /* no VOP_VFSSET() */
1098 /* VOP_STRATEGY - does not exist, use vn_strategy() */
1101 * 'OLD' VOP calls. These calls may only be made by the new API
1102 * compatibility functions in kern/vfs_default.c. Attempting to
1103 * call these functions directly will confuse the namecache. These
1104 * calls are deprecated and being removed from the system and from
1107 #define VOP_OLD_LOOKUP(dvp, vpp, cnp) \
1108 vop_old_lookup(*(dvp)->v_ops, dvp, vpp, cnp)
1109 #define VOP_OLD_CREATE(dvp, vpp, cnp, vap) \
1110 vop_old_create(*(dvp)->v_ops, dvp, vpp, cnp, vap)
1111 #define VOP_OLD_MKDIR(dvp, vpp, cnp, vap) \
1112 vop_old_mkdir(*(dvp)->v_ops, dvp, vpp, cnp, vap)
1113 #define VOP_OLD_MKNOD(dvp, vpp, cnp, vap) \
1114 vop_old_mknod(*(dvp)->v_ops, dvp, vpp, cnp, vap)
1115 #define VOP_OLD_LINK(tdvp, vp, cnp) \
1116 vop_old_link(*(tdvp)->v_ops, tdvp, vp, cnp)
1117 #define VOP_OLD_SYMLINK(dvp, vpp, cnp, vap, target) \
1118 vop_old_symlink(*(dvp)->v_ops, dvp, vpp, cnp, vap, target)
1119 #define VOP_OLD_WHITEOUT(dvp, cnp, flags) \
1120 vop_old_whiteout(*(dvp)->v_ops, dvp, cnp, flags)
1121 #define VOP_OLD_RENAME(fdvp, fvp, fcnp, tdvp, tvp, tcnp) \
1122 vop_old_rename(*(fdvp)->v_ops, fdvp, fvp, fcnp, tdvp, tvp, tcnp)
1123 #define VOP_OLD_RMDIR(dvp, vp, cnp) \
1124 vop_old_rmdir(*(dvp)->v_ops, dvp, vp, cnp)
1125 #define VOP_OLD_REMOVE(dvp, vp, cnp) \
1126 vop_old_remove(*(dvp)->v_ops, dvp, vp, cnp)
1129 * 'NEW' VOP calls. These calls use namespaces as an operational basis
1130 * rather then vnodes and replace the OLD calls. Eventually all VFS's
1131 * will support these calls. Those that do not fall through to compatibility
1132 * code in kern/vfs_default which does the magic required to call the old
1135 #define VOP_NRESOLVE(ncp, cred) \
1136 vop_nresolve((ncp)->nc_mount->mnt_vn_use_ops, ncp, cred)
1137 #define VOP_NCREATE(ncp, vpp, cred, vap) \
1138 vop_ncreate((ncp)->nc_mount->mnt_vn_use_ops, ncp, vpp, cred, vap)
1139 #define VOP_NMKDIR(ncp, vpp, cred, vap) \
1140 vop_nmkdir((ncp)->nc_mount->mnt_vn_use_ops, ncp, vpp, cred, vap)
1141 #define VOP_NMKNOD(ncp, vpp, cred, vap) \
1142 vop_nmknod((ncp)->nc_mount->mnt_vn_use_ops, ncp, vpp, cred, vap)
1143 #define VOP_NLINK(ncp, vp, cred) \
1144 vop_nlink((ncp)->nc_mount->mnt_vn_use_ops, ncp, vp, cred)
1145 #define VOP_NSYMLINK(ncp, vpp, cred, vap, target) \
1146 vop_nsymlink((ncp)->nc_mount->mnt_vn_use_ops, ncp, vpp, cred, vap, target)
1147 #define VOP_NWHITEOUT(ncp, cred, flags) \
1148 vop_nwhiteout((ncp)->nc_mount->mnt_vn_use_ops, ncp, cred, flags)
1149 #define VOP_NRENAME(fncp, tncp, cred) \
1150 vop_nrename((fncp)->nc_mount->mnt_vn_use_ops, fncp, tncp, cred)
1151 #define VOP_NRMDIR(ncp, cred) \
1152 vop_nrmdir((ncp)->nc_mount->mnt_vn_use_ops, ncp, cred)
1153 #define VOP_NREMOVE(ncp, cred) \
1154 vop_nremove((ncp)->nc_mount->mnt_vn_use_ops, ncp, cred)