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 1.32 2008/06/19 23:27:36 dillon Exp $
38 * The vop_ops structure vectors all access to a filesystem. It contains a
39 * fixed set of vectors.
41 * In DragonFly the ultimate goal is to thread the VFS, which means that
42 * the dispatch functions will eventually be called from the context of
43 * a management thread rather then directly called by a process. This
44 * requires us to divorce direct process dependancies (in particular ioctl
45 * and UIO's). In addition, it is our intention to implement kernel
46 * level cache management and coherency in the vop_*() interfacing
49 * The number of management threads will depend on the VFS. The idea is
50 * to give a high performance VFS such as UFS at least one thread per cpu,
51 * and a low performance VFS such as CD9660 perhaps just one thread period.
52 * Blocking issues within the management thread are up to the VFS itself,
53 * but DragonFly will introduce a layer above the VFS to handle cacheable
54 * requests without having to enter the VFS (e.g. by making attribute
55 * and VM object information a permanent fixture of the vnode structure
56 * and accessing them directly).
58 * THE VOPOPS VECTORS SHOULD NEVER BE CALLED DIRECTLY! Instead always use
59 * the kernel helper procedures vop_*() to call a vopop. The kernel
60 * helper procedure will be responsible for handling the DragonFly messaging
61 * conversion when it occurs.
64 #ifndef _SYS_VFSOPS_H_
65 #define _SYS_VFSOPS_H_
71 #include <sys/buf.h> /* buf_cmd_t */
74 #include <sys/fcntl.h> /* AT_EACCESS */
91 struct vop_generic_args {
92 struct syslink_desc *a_desc; /* command descriptor for the call */
93 struct vop_ops *a_ops; /* operations vector for the call */
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 */
135 struct vop_close_args {
136 struct vop_generic_args a_head;
139 struct file *a_fp; /* optional fp for fileops override */
142 struct vop_access_args {
143 struct vop_generic_args a_head;
145 int a_mode; /* V* bitmask */
146 int a_flags; /* AT_* bitmask */
147 struct ucred *a_cred;
150 struct vop_getattr_args {
151 struct vop_generic_args a_head;
156 struct vop_setattr_args {
157 struct vop_generic_args a_head;
160 struct ucred *a_cred;
163 struct vop_read_args {
164 struct vop_generic_args a_head;
168 struct ucred *a_cred;
171 struct vop_write_args {
172 struct vop_generic_args a_head;
176 struct ucred *a_cred;
179 struct vop_ioctl_args {
180 struct vop_generic_args a_head;
185 struct ucred *a_cred;
186 struct sysmsg *a_sysmsg;
189 struct vop_poll_args {
190 struct vop_generic_args a_head;
193 struct ucred *a_cred;
196 struct vop_kqfilter_args {
197 struct vop_generic_args a_head;
202 struct vop_mmap_args {
203 struct vop_generic_args a_head;
206 struct ucred *a_cred;
209 struct vop_fsync_args {
210 struct vop_generic_args a_head;
216 struct vop_old_remove_args {
217 struct vop_generic_args a_head;
220 struct componentname *a_cnp;
223 struct vop_old_link_args {
224 struct vop_generic_args a_head;
225 struct vnode *a_tdvp;
227 struct componentname *a_cnp;
230 struct vop_old_rename_args {
231 struct vop_generic_args a_head;
232 struct vnode *a_fdvp;
234 struct componentname *a_fcnp;
235 struct vnode *a_tdvp;
237 struct componentname *a_tcnp;
240 struct vop_old_mkdir_args {
241 struct vop_generic_args a_head;
243 struct vnode **a_vpp;
244 struct componentname *a_cnp;
248 struct vop_old_rmdir_args {
249 struct vop_generic_args a_head;
252 struct componentname *a_cnp;
255 struct vop_old_symlink_args {
256 struct vop_generic_args a_head;
258 struct vnode **a_vpp;
259 struct componentname *a_cnp;
264 struct vop_readdir_args {
265 struct vop_generic_args a_head;
268 struct ucred *a_cred;
274 struct vop_readlink_args {
275 struct vop_generic_args a_head;
278 struct ucred *a_cred;
281 struct vop_inactive_args {
282 struct vop_generic_args a_head;
286 struct vop_reclaim_args {
287 struct vop_generic_args a_head;
291 struct vop_bmap_args {
292 struct vop_generic_args a_head;
298 buf_cmd_t a_cmd; /* BUF_CMD_READ, BUF_CMD_WRITE, etc */
301 struct vop_strategy_args {
302 struct vop_generic_args a_head;
307 struct vop_print_args {
308 struct vop_generic_args a_head;
312 struct vop_pathconf_args {
313 struct vop_generic_args a_head;
316 register_t *a_retval;
319 struct vop_advlock_args {
320 struct vop_generic_args a_head;
328 struct vop_balloc_args {
329 struct vop_generic_args a_head;
333 struct ucred *a_cred;
338 struct vop_reallocblks_args {
339 struct vop_generic_args a_head;
341 struct cluster_save *a_buflist;
344 struct vop_getpages_args {
345 struct vop_generic_args a_head;
347 struct vm_page **a_m;
350 vm_ooffset_t a_offset;
354 struct vop_putpages_args {
355 struct vop_generic_args a_head;
357 struct vm_page **a_m;
361 vm_ooffset_t a_offset;
364 struct vop_freeblks_args {
365 struct vop_generic_args a_head;
371 struct vop_getacl_args {
372 struct vop_generic_args a_head;
376 struct ucred *a_cred;
379 struct vop_setacl_args {
380 struct vop_generic_args a_head;
384 struct ucred *a_cred;
387 struct vop_aclcheck_args {
388 struct vop_generic_args a_head;
392 struct ucred *a_cred;
395 struct vop_getextattr_args {
396 struct vop_generic_args a_head;
401 struct ucred *a_cred;
404 struct vop_setextattr_args {
405 struct vop_generic_args a_head;
410 struct ucred *a_cred;
413 struct vop_mountctl_args {
414 struct vop_generic_args a_head;
425 struct vop_markatime_args {
426 struct vop_generic_args a_head;
429 struct ucred *a_cred;
437 * Warning: a_dvp is only held, not ref'd. The target must still vget()
440 struct vop_nresolve_args {
441 struct vop_generic_args a_head;
442 struct nchandle *a_nch;
444 struct ucred *a_cred;
447 struct vop_nlookupdotdot_args {
448 struct vop_generic_args a_head;
450 struct vnode **a_vpp;
451 struct ucred *a_cred;
456 * Warning: a_dvp is only held, not ref'd. The target must still vget()
459 struct vop_ncreate_args {
460 struct vop_generic_args a_head;
461 struct nchandle *a_nch; /* locked namespace */
462 struct vnode *a_dvp; /* held directory vnode */
463 struct vnode **a_vpp; /* returned refd & locked */
464 struct ucred *a_cred;
469 * Warning: a_dvp is only held, not ref'd. The target must still vget()
472 struct vop_nmkdir_args {
473 struct vop_generic_args a_head;
474 struct nchandle *a_nch; /* locked namespace */
476 struct vnode **a_vpp; /* returned refd & locked */
477 struct ucred *a_cred;
482 * Warning: a_dvp is only held, not ref'd. The target must still vget()
485 struct vop_nmknod_args {
486 struct vop_generic_args a_head;
487 struct nchandle *a_nch;
489 struct vnode **a_vpp;
490 struct ucred *a_cred;
495 * Warning: a_dvp is only held, not ref'd. The target must still vget()
498 struct vop_nlink_args {
499 struct vop_generic_args a_head;
500 struct nchandle *a_nch;
503 struct ucred *a_cred;
507 * Warning: a_dvp is only held, not ref'd. The target must still vget()
510 struct vop_nsymlink_args {
511 struct vop_generic_args a_head;
512 struct nchandle *a_nch;
514 struct vnode **a_vpp;
515 struct ucred *a_cred;
521 * Warning: a_dvp is only held, not ref'd. The target must still vget()
524 struct vop_nwhiteout_args {
525 struct vop_generic_args a_head;
526 struct nchandle *a_nch;
528 struct ucred *a_cred;
533 * Warning: a_dvp is only held, not ref'd. The target must still vget()
536 struct vop_nremove_args {
537 struct vop_generic_args a_head;
538 struct nchandle *a_nch; /* locked namespace */
540 struct ucred *a_cred;
544 * Warning: a_dvp is only held, not ref'd. The target must still vget()
547 struct vop_nrmdir_args {
548 struct vop_generic_args a_head;
549 struct nchandle *a_nch; /* locked namespace */
551 struct ucred *a_cred;
555 * Warning: a_fdvp and a_tdvp are only held, not ref'd. The target must
558 struct vop_nrename_args {
559 struct vop_generic_args a_head;
560 struct nchandle *a_fnch; /* locked namespace / from */
561 struct nchandle *a_tnch; /* locked namespace / to */
562 struct vnode *a_fdvp;
563 struct vnode *a_tdvp;
564 struct ucred *a_cred;
568 * This structure is the post-compiled VOP operations vector. vop_ops are
569 * typically per-mount entities. The first section is used by our vop_*()
570 * function wrappers to implement hooks for per-mount management functions
571 * such as journaling and cache coherency protocols. The second section is
572 * the function dispatch for the VFSs. The functions are supposed to run
573 * in the context of the VFS's thread (if it has one) and should not be
574 * directly called from random kernel code. Note that VOCALL()s are direct
575 * calls used for chaining vop_ops structures from a VFS context.
579 struct mount *vv_mount;
582 #define vop_ops_first_field vop_default
583 int (*vop_default)(struct vop_generic_args *);
584 int (*vop_unused11)(void *);
585 int (*vop_old_lookup)(struct vop_old_lookup_args *);
586 int (*vop_unused03)(void *);
587 int (*vop_old_create)(struct vop_old_create_args *);
588 int (*vop_old_whiteout)(struct vop_old_whiteout_args *);
589 int (*vop_old_mknod)(struct vop_old_mknod_args *);
590 int (*vop_open)(struct vop_open_args *);
591 int (*vop_close)(struct vop_close_args *);
592 int (*vop_access)(struct vop_access_args *);
593 int (*vop_getattr)(struct vop_getattr_args *);
594 int (*vop_setattr)(struct vop_setattr_args *);
595 int (*vop_read)(struct vop_read_args *);
596 int (*vop_write)(struct vop_write_args *);
597 int (*vop_unused04)(void *);
598 int (*vop_ioctl)(struct vop_ioctl_args *);
599 int (*vop_poll)(struct vop_poll_args *);
600 int (*vop_kqfilter)(struct vop_kqfilter_args *);
601 int (*vop_unused01)(void *); /* was vop_revoke */
602 int (*vop_mmap)(struct vop_mmap_args *);
603 int (*vop_fsync)(struct vop_fsync_args *);
604 int (*vop_old_remove)(struct vop_old_remove_args *);
605 int (*vop_old_link)(struct vop_old_link_args *);
606 int (*vop_old_rename)(struct vop_old_rename_args *);
607 int (*vop_old_mkdir)(struct vop_old_mkdir_args *);
608 int (*vop_old_rmdir)(struct vop_old_rmdir_args *);
609 int (*vop_old_symlink)(struct vop_old_symlink_args *);
610 int (*vop_readdir)(struct vop_readdir_args *);
611 int (*vop_readlink)(struct vop_readlink_args *);
612 int (*vop_inactive)(struct vop_inactive_args *);
613 int (*vop_reclaim)(struct vop_reclaim_args *);
614 int (*vop_unused09)(void *);
615 int (*vop_unused10)(void *);
616 int (*vop_bmap)(struct vop_bmap_args *);
617 int (*vop_strategy)(struct vop_strategy_args *);
618 int (*vop_print)(struct vop_print_args *);
619 int (*vop_pathconf)(struct vop_pathconf_args *);
620 int (*vop_advlock)(struct vop_advlock_args *);
621 int (*vop_balloc)(struct vop_balloc_args *);
622 int (*vop_reallocblks)(struct vop_reallocblks_args *);
623 int (*vop_getpages)(struct vop_getpages_args *);
624 int (*vop_putpages)(struct vop_putpages_args *);
625 int (*vop_freeblks)(struct vop_freeblks_args *);
626 int (*vop_unused05)(void *);
627 int (*vop_getacl)(struct vop_getacl_args *);
628 int (*vop_setacl)(struct vop_setacl_args *);
629 int (*vop_aclcheck)(struct vop_aclcheck_args *);
630 int (*vop_getextattr)(struct vop_getextattr_args *);
631 int (*vop_setextattr)(struct vop_setextattr_args *);
632 int (*vop_unused06)(void *);
633 int (*vop_unused07)(void *);
634 int (*vop_unused08)(void *);
635 int (*vop_mountctl)(struct vop_mountctl_args *);
636 int (*vop_markatime)(struct vop_markatime_args *);
638 int (*vop_nresolve)(struct vop_nresolve_args *);
639 int (*vop_nlookupdotdot)(struct vop_nlookupdotdot_args *);
640 int (*vop_ncreate)(struct vop_ncreate_args *);
641 int (*vop_nmkdir)(struct vop_nmkdir_args *);
642 int (*vop_nmknod)(struct vop_nmknod_args *);
643 int (*vop_nlink)(struct vop_nlink_args *);
644 int (*vop_nsymlink)(struct vop_nsymlink_args *);
645 int (*vop_nwhiteout)(struct vop_nwhiteout_args *);
646 int (*vop_nremove)(struct vop_nremove_args *);
647 int (*vop_nrmdir)(struct vop_nrmdir_args *);
648 int (*vop_nrename)(struct vop_nrename_args *);
649 #define vop_ops_last_field vop_nrename
653 * vop_mountctl() operations
655 #define VFSSET_DETACH 0
656 #define VFSSET_ATTACH 1
659 * Kernel VOP arguments union, suitable for malloc / embedding in other
660 * structures. The vop_args_union can hold any VOP call argument structure.
661 * Note that vu_head is broken out.
663 union vop_args_union {
664 struct vop_generic_args vu_head;
665 struct vop_generic_args vu_default;
666 struct vop_old_lookup_args vu_lookup;
667 struct vop_old_create_args vu_create;
668 struct vop_old_whiteout_args vu_whiteout;
669 struct vop_old_mknod_args vu_mknod;
670 struct vop_open_args vu_open;
671 struct vop_close_args vu_close;
672 struct vop_access_args vu_access;
673 struct vop_getattr_args vu_getattr;
674 struct vop_setattr_args vu_setattr;
675 struct vop_read_args vu_read;
676 struct vop_write_args vu_write;
677 struct vop_ioctl_args vu_ioctl;
678 struct vop_poll_args vu_poll;
679 struct vop_kqfilter_args vu_kqfilter;
680 struct vop_mmap_args vu_mmap;
681 struct vop_fsync_args vu_fsync;
682 struct vop_old_remove_args vu_remove;
683 struct vop_old_link_args vu_link;
684 struct vop_old_rename_args vu_rename;
685 struct vop_old_mkdir_args vu_mkdir;
686 struct vop_old_rmdir_args vu_rmdir;
687 struct vop_old_symlink_args vu_symlink;
688 struct vop_readdir_args vu_readdir;
689 struct vop_readlink_args vu_readlink;
690 struct vop_inactive_args vu_inactive;
691 struct vop_reclaim_args vu_reclaim;
692 struct vop_bmap_args vu_bmap;
693 struct vop_strategy_args vu_strategy;
694 struct vop_print_args vu_print;
695 struct vop_pathconf_args vu_pathconf;
696 struct vop_advlock_args vu_advlock;
697 struct vop_balloc_args vu_balloc;
698 struct vop_reallocblks_args vu_reallocblks;
699 struct vop_getpages_args vu_getpages;
700 struct vop_putpages_args vu_putpages;
701 struct vop_freeblks_args vu_freeblks;
702 struct vop_getacl_args vu_getacl;
703 struct vop_setacl_args vu_setacl;
704 struct vop_aclcheck_args vu_aclcheck;
705 struct vop_getextattr_args vu_getextattr;
706 struct vop_setextattr_args vu_setextattr;
707 struct vop_mountctl_args vu_mountctl;
708 struct vop_markatime_args vu_markatime;
710 struct vop_nresolve_args vu_nresolve;
711 struct vop_nlookupdotdot_args vu_nlookupdotdot;
712 struct vop_ncreate_args vu_ncreate;
713 struct vop_nmkdir_args vu_nmkdir;
714 struct vop_nmknod_args vu_nmknod;
715 struct vop_nlink_args vu_nlink;
716 struct vop_nsymlink_args vu_nsymlink;
717 struct vop_nwhiteout_args vu_nwhiteout;
718 struct vop_nremove_args vu_nremove;
719 struct vop_nrmdir_args vu_nrmdir;
720 struct vop_nrename_args vu_nrename;
726 * Kernel VOP call wrappers. These wrappers are responsible for wrapping
727 * the arguments in the appropriate VOP arguments structure, sending the
728 * message, and waiting for a reply. All kernel and VFS code should generally
729 * call these wrappers rather then attempt to call the operations vector
730 * routine directly in order to allow DragonFly to properly wrap the operation
731 * in a message and dispatch it to the correct thread.
733 int vop_old_lookup(struct vop_ops *ops, struct vnode *dvp,
734 struct vnode **vpp, struct componentname *cnp);
735 int vop_old_create(struct vop_ops *ops, struct vnode *dvp,
736 struct vnode **vpp, struct componentname *cnp,
738 int vop_old_whiteout(struct vop_ops *ops, struct vnode *dvp,
739 struct componentname *cnp, int flags);
740 int vop_old_mknod(struct vop_ops *ops, struct vnode *dvp,
741 struct vnode **vpp, struct componentname *cnp,
743 int vop_open(struct vop_ops *ops, struct vnode *vp, int mode,
744 struct ucred *cred, struct file *file);
745 int vop_close(struct vop_ops *ops, struct vnode *vp, int fflag,
747 int vop_access(struct vop_ops *ops, struct vnode *vp, int mode, int flags,
749 int vop_getattr(struct vop_ops *ops, struct vnode *vp, struct vattr *vap);
750 int vop_setattr(struct vop_ops *ops, struct vnode *vp, struct vattr *vap,
752 int vop_read(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
753 int ioflag, struct ucred *cred);
754 int vop_write(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
755 int ioflag, struct ucred *cred);
756 int vop_ioctl(struct vop_ops *ops, struct vnode *vp, u_long command,
757 caddr_t data, int fflag, struct ucred *cred,
759 int vop_poll(struct vop_ops *ops, struct vnode *vp, int events,
761 int vop_kqfilter(struct vop_ops *ops, struct vnode *vp, struct knote *kn);
762 int vop_mmap(struct vop_ops *ops, struct vnode *vp, int fflags,
764 int vop_fsync(struct vop_ops *ops, struct vnode *vp, int waitfor, int flags);
765 int vop_old_remove(struct vop_ops *ops, struct vnode *dvp,
766 struct vnode *vp, struct componentname *cnp);
767 int vop_old_link(struct vop_ops *ops, struct vnode *tdvp,
768 struct vnode *vp, struct componentname *cnp);
769 int vop_old_rename(struct vop_ops *ops, struct vnode *fdvp,
770 struct vnode *fvp, struct componentname *fcnp,
771 struct vnode *tdvp, struct vnode *tvp,
772 struct componentname *tcnp);
773 int vop_old_mkdir(struct vop_ops *ops, struct vnode *dvp,
774 struct vnode **vpp, struct componentname *cnp,
776 int vop_old_rmdir(struct vop_ops *ops, struct vnode *dvp,
777 struct vnode *vp, struct componentname *cnp);
778 int vop_old_symlink(struct vop_ops *ops, struct vnode *dvp,
779 struct vnode **vpp, struct componentname *cnp,
780 struct vattr *vap, char *target);
781 int vop_readdir(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
782 struct ucred *cred, int *eofflag,
783 int *ncookies, off_t **cookies);
784 int vop_readlink(struct vop_ops *ops, struct vnode *vp, struct uio *uio,
786 int vop_inactive(struct vop_ops *ops, struct vnode *vp);
787 int vop_reclaim(struct vop_ops *ops, struct vnode *vp);
788 int vop_bmap(struct vop_ops *ops, struct vnode *vp, off_t loffset,
789 off_t *doffsetp, int *runp, int *runb, buf_cmd_t cmd);
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, int seqaccess);
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_getacl(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
808 struct acl *aclp, struct ucred *cred);
809 int vop_setacl(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
810 struct acl *aclp, struct ucred *cred);
811 int vop_aclcheck(struct vop_ops *ops, struct vnode *vp, acl_type_t type,
812 struct acl *aclp, struct ucred *cred);
814 int vop_getextattr(struct vop_ops *ops, struct vnode *vp, int attrnamespace,
815 char *attrname, struct uio *uio, struct ucred *cred);
816 int vop_setextattr(struct vop_ops *ops, struct vnode *vp, int attrnamespace,
817 char *attrname, struct uio *uio, struct ucred *cred);
818 int vop_mountctl(struct vop_ops *ops, struct vnode *vp, int op,
819 struct file *fp, const void *ctl, int ctllen,
820 void *buf, int buflen, int *res);
821 int vop_markatime(struct vop_ops *ops, struct vnode *vp, struct ucred *cred);
822 int vop_nresolve(struct vop_ops *ops, struct nchandle *nch,
823 struct vnode *dvp, struct ucred *cred);
824 int vop_nlookupdotdot(struct vop_ops *ops, struct vnode *dvp,
825 struct vnode **vpp, struct ucred *cred, char **fakename);
826 int vop_ncreate(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
827 struct vnode **vpp, struct ucred *cred, struct vattr *vap);
828 int vop_nmkdir(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
829 struct vnode **vpp, struct ucred *cred, struct vattr *vap);
830 int vop_nmknod(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
831 struct vnode **vpp, struct ucred *cred, struct vattr *vap);
832 int vop_nlink(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
833 struct vnode *vp, struct ucred *cred);
834 int vop_nsymlink(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
835 struct vnode **vpp, struct ucred *cred,
836 struct vattr *vap, char *target);
837 int vop_nwhiteout(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
838 struct ucred *cred, int flags);
839 int vop_nremove(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
841 int vop_nrmdir(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
843 int vop_nrename(struct vop_ops *ops,
844 struct nchandle *fnch, struct nchandle *tnch,
845 struct vnode *fdvp, struct vnode *tdvp,
849 * Kernel VOP forwarding wrappers. These are called when a VFS such as
850 * nullfs or unionfs needs to push down into another VFS, changing the
851 * a_ops pointer and consequentially necessitating additional
854 * Note that this is different from vop_ops chaining within the same
855 * filesystem. When a filesystem chains a vop_ops it just uses VOCALLs.
857 int vop_vnoperate_ap(struct vop_generic_args *ap);
858 int vop_cache_operate_ap(struct vop_generic_args *ap);
859 int vop_journal_operate_ap(struct vop_generic_args *ap);
860 int vop_old_lookup_ap(struct vop_old_lookup_args *ap);
861 int vop_old_create_ap(struct vop_old_create_args *ap);
862 int vop_old_whiteout_ap(struct vop_old_whiteout_args *ap);
863 int vop_old_mknod_ap(struct vop_old_mknod_args *ap);
864 int vop_open_ap(struct vop_open_args *ap);
865 int vop_close_ap(struct vop_close_args *ap);
866 int vop_access_ap(struct vop_access_args *ap);
867 int vop_getattr_ap(struct vop_getattr_args *ap);
868 int vop_setattr_ap(struct vop_setattr_args *ap);
869 int vop_read_ap(struct vop_read_args *ap);
870 int vop_write_ap(struct vop_write_args *ap);
871 int vop_ioctl_ap(struct vop_ioctl_args *ap);
872 int vop_poll_ap(struct vop_poll_args *ap);
873 int vop_kqfilter_ap(struct vop_kqfilter_args *ap);
874 int vop_mmap_ap(struct vop_mmap_args *ap);
875 int vop_fsync_ap(struct vop_fsync_args *ap);
876 int vop_old_remove_ap(struct vop_old_remove_args *ap);
877 int vop_old_link_ap(struct vop_old_link_args *ap);
878 int vop_old_rename_ap(struct vop_old_rename_args *ap);
879 int vop_old_mkdir_ap(struct vop_old_mkdir_args *ap);
880 int vop_old_rmdir_ap(struct vop_old_rmdir_args *ap);
881 int vop_old_symlink_ap(struct vop_old_symlink_args *ap);
882 int vop_readdir_ap(struct vop_readdir_args *ap);
883 int vop_readlink_ap(struct vop_readlink_args *ap);
884 int vop_inactive_ap(struct vop_inactive_args *ap);
885 int vop_reclaim_ap(struct vop_reclaim_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_getacl_ap(struct vop_getacl_args *ap);
897 int vop_setacl_ap(struct vop_setacl_args *ap);
898 int vop_aclcheck_ap(struct vop_aclcheck_args *ap);
899 int vop_getextattr_ap(struct vop_getextattr_args *ap);
900 int vop_setextattr_ap(struct vop_setextattr_args *ap);
901 int vop_mountctl_ap(struct vop_mountctl_args *ap);
902 int vop_markatime_ap(struct vop_markatime_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 syslink_desc vop_default_desc;
922 extern struct syslink_desc vop_old_lookup_desc;
923 extern struct syslink_desc vop_old_create_desc;
924 extern struct syslink_desc vop_old_whiteout_desc;
925 extern struct syslink_desc vop_old_mknod_desc;
926 extern struct syslink_desc vop_open_desc;
927 extern struct syslink_desc vop_close_desc;
928 extern struct syslink_desc vop_access_desc;
929 extern struct syslink_desc vop_getattr_desc;
930 extern struct syslink_desc vop_setattr_desc;
931 extern struct syslink_desc vop_read_desc;
932 extern struct syslink_desc vop_write_desc;
933 extern struct syslink_desc vop_ioctl_desc;
934 extern struct syslink_desc vop_poll_desc;
935 extern struct syslink_desc vop_kqfilter_desc;
936 extern struct syslink_desc vop_mmap_desc;
937 extern struct syslink_desc vop_fsync_desc;
938 extern struct syslink_desc vop_old_remove_desc;
939 extern struct syslink_desc vop_old_link_desc;
940 extern struct syslink_desc vop_old_rename_desc;
941 extern struct syslink_desc vop_old_mkdir_desc;
942 extern struct syslink_desc vop_old_rmdir_desc;
943 extern struct syslink_desc vop_old_symlink_desc;
944 extern struct syslink_desc vop_readdir_desc;
945 extern struct syslink_desc vop_readlink_desc;
946 extern struct syslink_desc vop_inactive_desc;
947 extern struct syslink_desc vop_reclaim_desc;
948 extern struct syslink_desc vop_bmap_desc;
949 extern struct syslink_desc vop_strategy_desc;
950 extern struct syslink_desc vop_print_desc;
951 extern struct syslink_desc vop_pathconf_desc;
952 extern struct syslink_desc vop_advlock_desc;
953 extern struct syslink_desc vop_balloc_desc;
954 extern struct syslink_desc vop_reallocblks_desc;
955 extern struct syslink_desc vop_getpages_desc;
956 extern struct syslink_desc vop_putpages_desc;
957 extern struct syslink_desc vop_freeblks_desc;
958 extern struct syslink_desc vop_getacl_desc;
959 extern struct syslink_desc vop_setacl_desc;
960 extern struct syslink_desc vop_aclcheck_desc;
961 extern struct syslink_desc vop_getextattr_desc;
962 extern struct syslink_desc vop_setextattr_desc;
963 extern struct syslink_desc vop_mountctl_desc;
964 extern struct syslink_desc vop_markatime_desc;
966 extern struct syslink_desc vop_nresolve_desc;
967 extern struct syslink_desc vop_nlookupdotdot_desc;
968 extern struct syslink_desc vop_ncreate_desc;
969 extern struct syslink_desc vop_nmkdir_desc;
970 extern struct syslink_desc vop_nmknod_desc;
971 extern struct syslink_desc vop_nlink_desc;
972 extern struct syslink_desc vop_nsymlink_desc;
973 extern struct syslink_desc vop_nwhiteout_desc;
974 extern struct syslink_desc vop_nremove_desc;
975 extern struct syslink_desc vop_nrmdir_desc;
976 extern struct syslink_desc vop_nrename_desc;
981 * VOP_*() convenience macros extract the operations vector and make the
984 #define VOP_OPEN(vp, mode, cred, fp) \
985 vop_open(*(vp)->v_ops, vp, mode, cred, fp)
986 #define VOP_CLOSE(vp, fflag, fp) \
987 vop_close(*(vp)->v_ops, vp, fflag, fp)
988 #define VOP_ACCESS(vp, mode, cred) \
989 vop_access(*(vp)->v_ops, vp, mode, 0, cred)
990 #define VOP_EACCESS(vp, mode, cred) \
991 vop_access(*(vp)->v_ops, vp, mode, AT_EACCESS, cred)
992 #define VOP_ACCESS_FLAGS(vp, mode, flags, cred) \
993 vop_access(*(vp)->v_ops, vp, mode, flags, cred)
994 #define VOP_GETATTR(vp, vap) \
995 vop_getattr(*(vp)->v_ops, vp, vap)
996 #define VOP_SETATTR(vp, vap, cred) \
997 vop_setattr(*(vp)->v_ops, vp, vap, cred)
998 #define VOP_READ(vp, uio, ioflag, cred) \
999 vop_read(*(vp)->v_ops, vp, uio, ioflag, cred)
1000 #define VOP_WRITE(vp, uio, ioflag, cred) \
1001 vop_write(*(vp)->v_ops, vp, uio, ioflag, cred)
1002 #define VOP_IOCTL(vp, command, data, fflag, cred, msg) \
1003 vop_ioctl(*(vp)->v_ops, vp, command, data, fflag, cred, msg)
1004 #define VOP_POLL(vp, events, cred) \
1005 vop_poll(*(vp)->v_ops, vp, events, cred)
1006 #define VOP_KQFILTER(vp, kn) \
1007 vop_kqfilter(*(vp)->v_ops, vp, kn)
1008 #define VOP_MMAP(vp, fflags, cred) \
1009 vop_mmap(*(vp)->v_ops, vp, fflags, cred)
1010 #define VOP_FSYNC(vp, waitfor, flags) \
1011 vop_fsync(*(vp)->v_ops, vp, waitfor, flags)
1012 #define VOP_READDIR(vp, uio, cred, eofflag, ncookies, cookies) \
1013 vop_readdir(*(vp)->v_ops, vp, uio, cred, eofflag, ncookies, cookies)
1014 #define VOP_READLINK(vp, uio, cred) \
1015 vop_readlink(*(vp)->v_ops, vp, uio, cred)
1016 #define VOP_INACTIVE(vp) \
1017 vop_inactive(*(vp)->v_ops, vp)
1018 #define VOP_RECLAIM(vp) \
1019 vop_reclaim(*(vp)->v_ops, vp)
1020 #define VOP_BMAP(vp, loff, doffp, runp, runb, cmd) \
1021 vop_bmap(*(vp)->v_ops, vp, loff, doffp, runp, runb, cmd)
1022 #define VOP_PRINT(vp) \
1023 vop_print(*(vp)->v_ops, vp)
1024 #define VOP_PATHCONF(vp, name, retval) \
1025 vop_pathconf(*(vp)->v_ops, vp, name, retval)
1026 #define VOP_ADVLOCK(vp, id, op, fl, flags) \
1027 vop_advlock(*(vp)->v_ops, vp, id, op, fl, flags)
1028 #define VOP_BALLOC(vp, offset, size, cred, flags, bpp) \
1029 vop_balloc(*(vp)->v_ops, vp, offset, size, cred, flags, bpp)
1030 #define VOP_REALLOCBLKS(vp, buflist) \
1031 vop_reallocblks(*(vp)->v_ops, vp, buflist)
1032 #define VOP_GETPAGES(vp, m, count, reqpage, off, seqaccess) \
1033 vop_getpages(*(vp)->v_ops, vp, m, count, reqpage, off, seqaccess)
1034 #define VOP_PUTPAGES(vp, m, count, sync, rtvals, off) \
1035 vop_putpages(*(vp)->v_ops, vp, m, count, sync, rtvals, off)
1036 #define VOP_FREEBLKS(vp, offset, length) \
1037 vop_freeblks(*(vp)->v_ops, vp, offset, length)
1038 #define VOP_GETACL(vp, type, aclp, cred) \
1039 vop_getacl(*(vp)->v_ops, vp, type, aclp, cred)
1040 #define VOP_SETACL(vp, type, aclp, cred) \
1041 vop_setacl(*(vp)->v_ops, vp, type, aclp, cred)
1042 #define VOP_ACLCHECK(vp, type, aclp, cred) \
1043 vop_aclcheck(*(vp)->v_ops, vp, type, aclp, cred)
1044 #define VOP_GETEXTATTR(vp, attrnamespace, attrname, uio, cred) \
1045 vop_getextattr(*(vp)->v_ops, vp, attrnamespace, attrname, uio, cred)
1046 #define VOP_SETEXTATTR(vp, attrnamespace, attrname, uio, cred) \
1047 vop_setextattr(*(vp)->v_ops, vp, attrnamespace, attrname, uio, cred)
1048 #define VOP_MARKATIME(vp, cred) \
1049 vop_markatime(*(vp)->v_ops, vp, cred)
1050 /* no VOP_VFSSET() */
1051 /* VOP_STRATEGY - does not exist, use vn_strategy() */
1054 * 'OLD' VOP calls. These calls may only be made by the new API
1055 * compatibility functions in kern/vfs_default.c. Attempting to
1056 * call these functions directly will confuse the namecache. These
1057 * calls are deprecated and being removed from the system and from
1060 #define VOP_OLD_LOOKUP(dvp, vpp, cnp) \
1061 vop_old_lookup(*(dvp)->v_ops, dvp, vpp, cnp)
1062 #define VOP_OLD_CREATE(dvp, vpp, cnp, vap) \
1063 vop_old_create(*(dvp)->v_ops, dvp, vpp, cnp, vap)
1064 #define VOP_OLD_MKDIR(dvp, vpp, cnp, vap) \
1065 vop_old_mkdir(*(dvp)->v_ops, dvp, vpp, cnp, vap)
1066 #define VOP_OLD_MKNOD(dvp, vpp, cnp, vap) \
1067 vop_old_mknod(*(dvp)->v_ops, dvp, vpp, cnp, vap)
1068 #define VOP_OLD_LINK(tdvp, vp, cnp) \
1069 vop_old_link(*(tdvp)->v_ops, tdvp, vp, cnp)
1070 #define VOP_OLD_SYMLINK(dvp, vpp, cnp, vap, target) \
1071 vop_old_symlink(*(dvp)->v_ops, dvp, vpp, cnp, vap, target)
1072 #define VOP_OLD_WHITEOUT(dvp, cnp, flags) \
1073 vop_old_whiteout(*(dvp)->v_ops, dvp, cnp, flags)
1074 #define VOP_OLD_RENAME(fdvp, fvp, fcnp, tdvp, tvp, tcnp) \
1075 vop_old_rename(*(fdvp)->v_ops, fdvp, fvp, fcnp, tdvp, tvp, tcnp)
1076 #define VOP_OLD_RMDIR(dvp, vp, cnp) \
1077 vop_old_rmdir(*(dvp)->v_ops, dvp, vp, cnp)
1078 #define VOP_OLD_REMOVE(dvp, vp, cnp) \
1079 vop_old_remove(*(dvp)->v_ops, dvp, vp, cnp)
1082 * 'NEW' VOP calls. These calls use namespaces as an operational basis
1083 * rather then vnodes and replace the OLD calls. Eventually all VFS's
1084 * will support these calls. Those that do not fall through to compatibility
1085 * code in kern/vfs_default which does the magic required to call the old
1088 #define VOP_NRESOLVE(nch, dvp, cred) \
1089 vop_nresolve((nch)->mount->mnt_vn_use_ops, nch, dvp, cred)
1090 #define VOP_NLOOKUPDOTDOT(dvp, vpp, cred, fakename) \
1091 vop_nlookupdotdot(*(dvp)->v_ops, dvp, vpp, cred, fakename)
1092 #define VOP_NCREATE(nch, dvp, vpp, cred, vap) \
1093 vop_ncreate((nch)->mount->mnt_vn_use_ops, nch, dvp, vpp, cred, vap)
1094 #define VOP_NMKDIR(nch, dvp, vpp, cred, vap) \
1095 vop_nmkdir((nch)->mount->mnt_vn_use_ops, nch, dvp, vpp, cred, vap)
1096 #define VOP_NMKNOD(nch, dvp, vpp, cred, vap) \
1097 vop_nmknod((nch)->mount->mnt_vn_use_ops, nch, dvp, vpp, cred, vap)
1098 #define VOP_NLINK(nch, dvp, vp, cred) \
1099 vop_nlink((nch)->mount->mnt_vn_use_ops, nch, dvp, vp, cred)
1100 #define VOP_NSYMLINK(nch, dvp, vpp, cred, vap, target) \
1101 vop_nsymlink((nch)->mount->mnt_vn_use_ops, nch, dvp, vpp, cred, vap, target)
1102 #define VOP_NWHITEOUT(nch, dvp, cred, flags) \
1103 vop_nwhiteout((nch)->mount->mnt_vn_use_ops, nch, dvp, cred, flags)
1104 #define VOP_NRENAME(fnch, tnch, fdvp, tdvp, cred) \
1105 vop_nrename((fnch)->mount->mnt_vn_use_ops, fnch, tnch, fdvp, tdvp, cred)
1106 #define VOP_NRMDIR(nch, dvp, cred) \
1107 vop_nrmdir((nch)->mount->mnt_vn_use_ops, nch, dvp, cred)
1108 #define VOP_NREMOVE(nch, dvp, cred) \
1109 vop_nremove((nch)->mount->mnt_vn_use_ops, nch, dvp, cred)