2 * A large chunk of this file appears to be copied directly from
3 * sys/nfsclient/nfs_bio.c, which has the following license:
6 * Copyright (c) 1989, 1993
7 * The Regents of the University of California. All rights reserved.
9 * This code is derived from software contributed to Berkeley by
10 * Rick Macklem at The University of Guelph.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. All advertising materials mentioning features or use of this software
21 * must display the following acknowledgement:
22 * This product includes software developed by the University of
23 * California, Berkeley and its contributors.
24 * 4. Neither the name of the University nor the names of its contributors
25 * may be used to endorse or promote products derived from this software
26 * without specific prior written permission.
28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40 * @(#)nfs_bio.c 8.9 (Berkeley) 3/30/95
43 * Pursuant to a statement of U.C. Berkeley dated 1999-07-22, this license
44 * is amended to drop clause (3) above.
47 #include <afsconfig.h>
48 #include <afs/param.h>
53 #include <afs/sysincludes.h> /* Standard vendor system headers */
54 #include <afsincludes.h> /* Afs-based standard headers */
55 #include <afs/afs_stats.h> /* statistics */
56 #include <sys/malloc.h>
57 #include <sys/namei.h>
58 #include <sys/unistd.h>
59 #ifndef AFS_FBSD50_ENV
60 #include <vm/vm_zone.h>
62 #include <vm/vm_page.h>
63 #include <vm/vm_object.h>
64 #include <vm/vm_pager.h>
65 #include <vm/vnode_pager.h>
66 extern int afs_pbuf_freecnt;
69 static vop_access_t afs_vop_access;
70 static vop_advlock_t afs_vop_advlock;
71 static vop_close_t afs_vop_close;
72 static vop_create_t afs_vop_create;
73 static vop_fsync_t afs_vop_fsync;
74 static vop_getattr_t afs_vop_getattr;
75 static vop_getpages_t afs_vop_getpages;
76 static vop_inactive_t afs_vop_inactive;
77 static vop_ioctl_t afs_vop_ioctl;
78 static vop_link_t afs_vop_link;
79 static vop_lookup_t afs_vop_lookup;
80 static vop_mkdir_t afs_vop_mkdir;
81 static vop_mknod_t afs_vop_mknod;
82 static vop_open_t afs_vop_open;
83 static vop_pathconf_t afs_vop_pathconf;
84 static vop_poll_t afs_vop_poll;
85 static vop_print_t afs_vop_print;
86 static vop_putpages_t afs_vop_putpages;
87 static vop_read_t afs_vop_read;
88 static vop_readdir_t afs_vop_readdir;
89 static vop_readlink_t afs_vop_readlink;
90 static vop_reclaim_t afs_vop_reclaim;
91 static vop_remove_t afs_vop_remove;
92 static vop_rename_t afs_vop_rename;
93 static vop_rmdir_t afs_vop_rmdir;
94 static vop_setattr_t afs_vop_setattr;
95 static vop_strategy_t afs_vop_strategy;
96 static vop_symlink_t afs_vop_symlink;
97 static vop_write_t afs_vop_write;
99 struct vop_vector afs_vnodeops = {
100 .vop_default = &default_vnodeops,
101 .vop_access = afs_vop_access,
102 .vop_advlock = afs_vop_advlock,
103 .vop_close = afs_vop_close,
104 .vop_create = afs_vop_create,
105 .vop_fsync = afs_vop_fsync,
106 .vop_getattr = afs_vop_getattr,
107 .vop_getpages = afs_vop_getpages,
108 .vop_inactive = afs_vop_inactive,
109 .vop_ioctl = afs_vop_ioctl,
110 .vop_lease = VOP_NULL,
111 .vop_link = afs_vop_link,
112 .vop_lookup = afs_vop_lookup,
113 .vop_mkdir = afs_vop_mkdir,
114 .vop_mknod = afs_vop_mknod,
115 .vop_open = afs_vop_open,
116 .vop_pathconf = afs_vop_pathconf,
117 .vop_poll = afs_vop_poll,
118 .vop_print = afs_vop_print,
119 .vop_putpages = afs_vop_putpages,
120 .vop_read = afs_vop_read,
121 .vop_readdir = afs_vop_readdir,
122 .vop_readlink = afs_vop_readlink,
123 .vop_reclaim = afs_vop_reclaim,
124 .vop_remove = afs_vop_remove,
125 .vop_rename = afs_vop_rename,
126 .vop_rmdir = afs_vop_rmdir,
127 .vop_setattr = afs_vop_setattr,
128 .vop_strategy = afs_vop_strategy,
129 .vop_symlink = afs_vop_symlink,
130 .vop_write = afs_vop_write,
133 #else /* AFS_FBSD60_ENV */
135 int afs_vop_lookup(struct vop_lookup_args *);
136 int afs_vop_create(struct vop_create_args *);
137 int afs_vop_mknod(struct vop_mknod_args *);
138 int afs_vop_open(struct vop_open_args *);
139 int afs_vop_close(struct vop_close_args *);
140 int afs_vop_access(struct vop_access_args *);
141 int afs_vop_getattr(struct vop_getattr_args *);
142 int afs_vop_setattr(struct vop_setattr_args *);
143 int afs_vop_read(struct vop_read_args *);
144 int afs_vop_write(struct vop_write_args *);
145 int afs_vop_getpages(struct vop_getpages_args *);
146 int afs_vop_putpages(struct vop_putpages_args *);
147 int afs_vop_ioctl(struct vop_ioctl_args *);
148 static int afs_vop_pathconf(struct vop_pathconf_args *);
149 int afs_vop_poll(struct vop_poll_args *);
150 #ifndef AFS_FBSD50_ENV
151 int afs_vop_mmap(struct vop_mmap_args *);
153 int afs_vop_fsync(struct vop_fsync_args *);
154 int afs_vop_remove(struct vop_remove_args *);
155 int afs_vop_link(struct vop_link_args *);
156 int afs_vop_rename(struct vop_rename_args *);
157 int afs_vop_mkdir(struct vop_mkdir_args *);
158 int afs_vop_rmdir(struct vop_rmdir_args *);
159 int afs_vop_symlink(struct vop_symlink_args *);
160 int afs_vop_readdir(struct vop_readdir_args *);
161 int afs_vop_readlink(struct vop_readlink_args *);
162 int afs_vop_inactive(struct vop_inactive_args *);
163 int afs_vop_reclaim(struct vop_reclaim_args *);
164 int afs_vop_bmap(struct vop_bmap_args *);
165 int afs_vop_strategy(struct vop_strategy_args *);
166 int afs_vop_print(struct vop_print_args *);
167 int afs_vop_advlock(struct vop_advlock_args *);
171 /* Global vfs data structures for AFS. */
172 vop_t **afs_vnodeop_p;
173 struct vnodeopv_entry_desc afs_vnodeop_entries[] = {
174 {&vop_default_desc, (vop_t *) vop_defaultop},
175 {&vop_access_desc, (vop_t *) afs_vop_access}, /* access */
176 {&vop_advlock_desc, (vop_t *) afs_vop_advlock}, /* advlock */
177 {&vop_bmap_desc, (vop_t *) afs_vop_bmap}, /* bmap */
178 #ifndef AFS_FBSD50_ENV
179 {&vop_bwrite_desc, (vop_t *) vop_stdbwrite},
181 {&vop_close_desc, (vop_t *) afs_vop_close}, /* close */
182 {&vop_createvobject_desc, (vop_t *) vop_stdcreatevobject},
183 {&vop_destroyvobject_desc, (vop_t *) vop_stddestroyvobject},
184 {&vop_create_desc, (vop_t *) afs_vop_create}, /* create */
185 {&vop_fsync_desc, (vop_t *) afs_vop_fsync}, /* fsync */
186 {&vop_getattr_desc, (vop_t *) afs_vop_getattr}, /* getattr */
187 {&vop_getpages_desc, (vop_t *) afs_vop_getpages}, /* read */
188 {&vop_getvobject_desc, (vop_t *) vop_stdgetvobject},
189 {&vop_putpages_desc, (vop_t *) afs_vop_putpages}, /* write */
190 {&vop_inactive_desc, (vop_t *) afs_vop_inactive}, /* inactive */
191 {&vop_lease_desc, (vop_t *) vop_null},
192 {&vop_link_desc, (vop_t *) afs_vop_link}, /* link */
193 {&vop_lookup_desc, (vop_t *) afs_vop_lookup}, /* lookup */
194 {&vop_mkdir_desc, (vop_t *) afs_vop_mkdir}, /* mkdir */
195 {&vop_mknod_desc, (vop_t *) afs_vop_mknod}, /* mknod */
196 #ifndef AFS_FBSD50_ENV
197 {&vop_mmap_desc, (vop_t *) afs_vop_mmap}, /* mmap */
199 {&vop_open_desc, (vop_t *) afs_vop_open}, /* open */
200 {&vop_pathconf_desc, (vop_t *) afs_vop_pathconf}, /* pathconf */
201 {&vop_poll_desc, (vop_t *) afs_vop_poll}, /* select */
202 {&vop_print_desc, (vop_t *) afs_vop_print}, /* print */
203 {&vop_read_desc, (vop_t *) afs_vop_read}, /* read */
204 {&vop_readdir_desc, (vop_t *) afs_vop_readdir}, /* readdir */
205 {&vop_readlink_desc, (vop_t *) afs_vop_readlink}, /* readlink */
206 {&vop_reclaim_desc, (vop_t *) afs_vop_reclaim}, /* reclaim */
207 {&vop_remove_desc, (vop_t *) afs_vop_remove}, /* remove */
208 {&vop_rename_desc, (vop_t *) afs_vop_rename}, /* rename */
209 {&vop_rmdir_desc, (vop_t *) afs_vop_rmdir}, /* rmdir */
210 {&vop_setattr_desc, (vop_t *) afs_vop_setattr}, /* setattr */
211 {&vop_strategy_desc, (vop_t *) afs_vop_strategy}, /* strategy */
212 {&vop_symlink_desc, (vop_t *) afs_vop_symlink}, /* symlink */
213 {&vop_write_desc, (vop_t *) afs_vop_write}, /* write */
214 {&vop_ioctl_desc, (vop_t *) afs_vop_ioctl}, /* XXX ioctl */
215 /*{ &vop_seek_desc, afs_vop_seek }, *//* seek */
218 struct vnodeopv_desc afs_vnodeop_opv_desc =
219 { &afs_vnodeop_p, afs_vnodeop_entries };
220 #endif /* AFS_FBSD60_ENV */
223 struct componentname *cnp = ap->a_cnp; \
225 MALLOC(name, char *, cnp->cn_namelen+1, M_TEMP, M_WAITOK); \
226 memcpy(name, cnp->cn_nameptr, cnp->cn_namelen); \
227 name[cnp->cn_namelen] = '\0'
229 #define DROPNAME() FREE(name, M_TEMP)
231 /* This is a bit of a cheat... */
232 #ifdef AFS_FBSD50_ENV
237 * Mosty copied from sys/ufs/ufs/ufs_vnops.c:ufs_pathconf().
238 * We should know the correct answers to these questions with
239 * respect to the AFS protocol (which may differ from the UFS
240 * values) but for the moment this will do.
243 afs_vop_pathconf(struct vop_pathconf_args *ap)
248 switch (ap->a_name) {
250 *ap->a_retval = LINK_MAX;
253 *ap->a_retval = NAME_MAX;
256 *ap->a_retval = PATH_MAX;
259 *ap->a_retval = PIPE_BUF;
261 case _PC_CHOWN_RESTRICTED:
267 #ifdef _PC_ACL_EXTENDED
268 case _PC_ACL_EXTENDED:
271 case _PC_ACL_PATH_MAX:
275 #ifdef _PC_MAC_PRESENT
276 case _PC_MAC_PRESENT:
282 /* _PC_ASYNC_IO should have been handled by upper layers. */
283 KASSERT(0, ("_PC_ASYNC_IO should not get here"));
293 #ifdef _PC_ALLOC_SIZE_MIN
294 case _PC_ALLOC_SIZE_MIN:
295 *ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_bsize;
298 #ifdef _PC_FILESIZEBITS
299 case _PC_FILESIZEBITS:
300 *ap->a_retval = 32; /* XXX */
303 #ifdef _PC_REC_INCR_XFER_SIZE
304 case _PC_REC_INCR_XFER_SIZE:
305 *ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_iosize;
307 case _PC_REC_MAX_XFER_SIZE:
308 *ap->a_retval = -1; /* means ``unlimited'' */
310 case _PC_REC_MIN_XFER_SIZE:
311 *ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_iosize;
313 case _PC_REC_XFER_ALIGN:
314 *ap->a_retval = PAGE_SIZE;
317 #ifdef _PC_SYMLINK_MAX
318 case _PC_SYMLINK_MAX:
319 *ap->a_retval = MAXPATHLEN;
331 struct vop_lookup_args /* {
332 * struct vnodeop_desc * a_desc;
333 * struct vnode *a_dvp;
334 * struct vnode **a_vpp;
335 * struct componentname *a_cnp;
340 struct vnode *vp, *dvp;
341 register int flags = ap->a_cnp->cn_flags;
342 int lockparent; /* 1 => lockparent flag is set */
343 int wantparent; /* 1 => wantparent or lockparent flag */
344 #ifdef AFS_FBSD50_ENV
345 struct thread *p = ap->a_cnp->cn_thread;
347 struct proc *p = ap->a_cnp->cn_proc;
351 lockparent = flags & LOCKPARENT;
352 wantparent = flags & (LOCKPARENT | WANTPARENT);
354 if (ap->a_dvp->v_type != VDIR) {
360 if (flags & ISDOTDOT)
361 VOP_UNLOCK(dvp, 0, p);
363 error = afs_lookup(VTOAFS(dvp), name, &vcp, cnp->cn_cred);
366 if (flags & ISDOTDOT)
367 VOP_LOCK(dvp, LK_EXCLUSIVE | LK_RETRY, p);
368 if ((cnp->cn_nameiop == CREATE || cnp->cn_nameiop == RENAME)
369 && (flags & ISLASTCN) && error == ENOENT)
371 if (cnp->cn_nameiop != LOOKUP && (flags & ISLASTCN))
372 cnp->cn_flags |= SAVENAME;
377 vp = AFSTOV(vcp); /* always get a node if no error */
379 /* The parent directory comes in locked. We unlock it on return
380 * unless the caller wants it left locked.
381 * we also always return the vnode locked. */
383 if (flags & ISDOTDOT) {
384 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
385 /* always return the child locked */
386 if (lockparent && (flags & ISLASTCN)
387 && (error = vn_lock(dvp, LK_EXCLUSIVE, p))) {
392 } else if (vp == dvp) {
393 /* they're the same; afs_lookup() already ref'ed the leaf.
394 * It came in locked, so we don't need to ref OR lock it */
396 if (!lockparent || !(flags & ISLASTCN))
397 VOP_UNLOCK(dvp, 0, p); /* done with parent. */
398 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
399 /* always return the child locked */
403 if ((cnp->cn_nameiop == RENAME && wantparent && (flags & ISLASTCN))
404 || (cnp->cn_nameiop != LOOKUP && (flags & ISLASTCN)))
405 cnp->cn_flags |= SAVENAME;
413 struct vop_create_args /* {
414 * struct vnode *a_dvp;
415 * struct vnode **a_vpp;
416 * struct componentname *a_cnp;
417 * struct vattr *a_vap;
422 register struct vnode *dvp = ap->a_dvp;
423 #ifdef AFS_FBSD50_ENV
424 struct thread *p = ap->a_cnp->cn_thread;
426 struct proc *p = ap->a_cnp->cn_proc;
432 afs_create(VTOAFS(dvp), name, ap->a_vap,
433 ap->a_vap->va_vaflags & VA_EXCLUSIVE ? EXCL : NONEXCL,
434 ap->a_vap->va_mode, &vcp, cnp->cn_cred);
442 *ap->a_vpp = AFSTOV(vcp);
443 vn_lock(AFSTOV(vcp), LK_EXCLUSIVE | LK_RETRY, p);
453 struct vop_mknod_args /* {
454 * struct vnode *a_dvp;
455 * struct vnode **a_vpp;
456 * struct componentname *a_cnp;
457 * struct vattr *a_vap;
465 validate_vops(struct vnode *vp, int after)
468 struct vnodeopv_entry_desc *this;
469 for (this = afs_vnodeop_entries; this->opve_op; this++) {
470 if (vp->v_op[this->opve_op->vdesc_offset] != this->opve_impl) {
472 printf("v_op %d ", after);
476 printf("For oper %d (%s), func is %p, not %p",
477 this->opve_op->vdesc_offset, this->opve_op->vdesc_name,
478 vp->v_op[this->opve_op->vdesc_offset], this->opve_impl);
486 struct vop_open_args /* {
487 * struct vnode *a_vp;
489 * struct ucred *a_cred;
495 struct vcache *vc = VTOAFS(ap->a_vp);
498 error = afs_open(&vc, ap->a_mode, ap->a_cred);
500 if (AFSTOV(vc) != ap->a_vp)
501 panic("AFS open changed vnode!");
503 osi_FlushPages(vc, ap->a_cred);
510 struct vop_close_args /* {
511 * struct vnode *a_vp;
513 * struct ucred *a_cred;
518 struct vcache *avc = VTOAFS(ap->a_vp);
521 code = afs_close(avc, ap->a_fflag, ap->a_cred);
523 code = afs_close(avc, ap->a_fflag, afs_osi_credp);
524 osi_FlushPages(avc, ap->a_cred); /* hold bozon lock, but not basic vnode lock */
531 struct vop_access_args /* {
532 * struct vnode *a_vp;
534 * struct ucred *a_cred;
540 code = afs_access(VTOAFS(ap->a_vp), ap->a_mode, ap->a_cred);
547 struct vop_getattr_args /* {
548 * struct vnode *a_vp;
549 * struct vattr *a_vap;
550 * struct ucred *a_cred;
556 code = afs_getattr(VTOAFS(ap->a_vp), ap->a_vap, ap->a_cred);
563 struct vop_setattr_args /* {
564 * struct vnode *a_vp;
565 * struct vattr *a_vap;
566 * struct ucred *a_cred;
572 code = afs_setattr(VTOAFS(ap->a_vp), ap->a_vap, ap->a_cred);
579 struct vop_read_args /* {
580 * struct vnode *a_vp;
583 * struct ucred *a_cred;
588 struct vcache *avc = VTOAFS(ap->a_vp);
590 osi_FlushPages(avc, ap->a_cred); /* hold bozon lock, but not basic vnode lock */
591 code = afs_read(avc, ap->a_uio, ap->a_cred, 0, 0, 0);
596 /* struct vop_getpages_args {
597 * struct vnode *a_vp;
601 * vm_oofset_t a_offset;
605 afs_vop_getpages(struct vop_getpages_args *ap)
608 int i, nextoff, size, toff, npages;
617 #ifdef AFS_FBSD50_ENV
622 if ((object = vp->v_object) == NULL) {
623 printf("afs_getpages: called with non-merged cache vnode??\n");
624 return VM_PAGER_ERROR;
626 npages = btoc(ap->a_count);
628 * If the requested page is partially valid, just return it and
629 * allow the pager to zero-out the blanks. Partially valid pages
630 * can only occur at the file EOF.
634 vm_page_t m = ap->a_m[ap->a_reqpage];
636 #ifdef AFS_FBSD50_ENV
637 VM_OBJECT_LOCK(object);
638 vm_page_lock_queues();
641 /* handled by vm_fault now */
642 /* vm_page_zero_invalid(m, TRUE); */
643 for (i = 0; i < npages; ++i) {
644 if (i != ap->a_reqpage)
645 vm_page_free(ap->a_m[i]);
647 #ifdef AFS_FBSD50_ENV
648 vm_page_unlock_queues();
649 VM_OBJECT_UNLOCK(object);
653 #ifdef AFS_FBSD50_ENV
654 vm_page_unlock_queues();
655 VM_OBJECT_UNLOCK(object);
658 bp = getpbuf(&afs_pbuf_freecnt);
660 kva = (vm_offset_t) bp->b_data;
661 pmap_qenter(kva, ap->a_m, npages);
662 #ifdef AFS_FBSD50_ENV
664 cnt.v_vnodepgsin += npages;
667 iov.iov_base = (caddr_t) kva;
668 iov.iov_len = ap->a_count;
671 uio.uio_offset = IDX_TO_OFF(ap->a_m[0]->pindex);
672 uio.uio_resid = ap->a_count;
673 uio.uio_segflg = UIO_SYSSPACE;
674 uio.uio_rw = UIO_READ;
675 #ifdef AFS_FBSD50_ENV
676 uio.uio_td = curthread;
678 uio.uio_procp = curproc;
682 osi_FlushPages(avc, osi_curcred()); /* hold bozon lock, but not basic vnode lock */
683 code = afs_read(avc, &uio, osi_curcred(), 0, 0, 0);
685 pmap_qremove(kva, npages);
687 relpbuf(bp, &afs_pbuf_freecnt);
689 if (code && (uio.uio_resid == ap->a_count)) {
690 #ifdef AFS_FBSD50_ENV
691 VM_OBJECT_LOCK(object);
692 vm_page_lock_queues();
694 for (i = 0; i < npages; ++i) {
695 if (i != ap->a_reqpage)
696 vm_page_free(ap->a_m[i]);
698 #ifdef AFS_FBSD50_ENV
699 vm_page_unlock_queues();
700 VM_OBJECT_UNLOCK(object);
702 return VM_PAGER_ERROR;
705 size = ap->a_count - uio.uio_resid;
706 #ifdef AFS_FBSD50_ENV
707 VM_OBJECT_LOCK(object);
708 vm_page_lock_queues();
710 for (i = 0, toff = 0; i < npages; i++, toff = nextoff) {
712 nextoff = toff + PAGE_SIZE;
715 m->flags &= ~PG_ZERO;
717 if (nextoff <= size) {
719 * Read operation filled an entire page
721 m->valid = VM_PAGE_BITS_ALL;
723 } else if (size > toff) {
725 * Read operation filled a partial page.
728 vm_page_set_validclean(m, 0, size - toff);
729 /* handled by vm_fault now */
730 /* vm_page_zero_invalid(m, TRUE); */
733 if (i != ap->a_reqpage) {
735 * Whether or not to leave the page activated is up in
736 * the air, but we should put the page on a page queue
737 * somewhere (it already is in the object). Result:
738 * It appears that emperical results show that
739 * deactivating pages is best.
743 * Just in case someone was asking for this page we
744 * now tell them that it is ok to use.
747 if (m->flags & PG_WANTED)
750 vm_page_deactivate(m);
757 #ifdef AFS_FBSD50_ENV
758 vm_page_unlock_queues();
759 VM_OBJECT_UNLOCK(object);
766 struct vop_write_args /* {
767 * struct vnode *a_vp;
770 * struct ucred *a_cred;
774 struct vcache *avc = VTOAFS(ap->a_vp);
776 osi_FlushPages(avc, ap->a_cred); /* hold bozon lock, but not basic vnode lock */
778 afs_write(VTOAFS(ap->a_vp), ap->a_uio, ap->a_ioflag, ap->a_cred, 0);
784 * struct vop_putpages_args {
785 * struct vnode *a_vp;
790 * vm_oofset_t a_offset;
794 * All of the pages passed to us in ap->a_m[] are already marked as busy,
795 * so there is no additional locking required to set their flags. -GAW
798 afs_vop_putpages(struct vop_putpages_args *ap)
801 int i, size, npages, sync;
809 #ifdef AFS_FBSD50_ENV
815 /* Perhaps these two checks should just be KASSERTs instead... */
816 if (vp->v_object == NULL) {
817 printf("afs_putpages: called with non-merged cache vnode??\n");
818 return VM_PAGER_ERROR; /* XXX I think this is insufficient */
820 if (vType(avc) != VREG) {
821 printf("afs_putpages: not VREG");
822 return VM_PAGER_ERROR; /* XXX I think this is insufficient */
824 npages = btoc(ap->a_count);
825 for (i = 0; i < npages; i++)
826 ap->a_rtvals[i] = VM_PAGER_AGAIN;
827 bp = getpbuf(&afs_pbuf_freecnt);
829 kva = (vm_offset_t) bp->b_data;
830 pmap_qenter(kva, ap->a_m, npages);
831 #ifdef AFS_FBSD50_ENV
833 cnt.v_vnodepgsout += ap->a_count;
836 iov.iov_base = (caddr_t) kva;
837 iov.iov_len = ap->a_count;
840 uio.uio_offset = IDX_TO_OFF(ap->a_m[0]->pindex);
841 uio.uio_resid = ap->a_count;
842 uio.uio_segflg = UIO_SYSSPACE;
843 uio.uio_rw = UIO_WRITE;
844 #ifdef AFS_FBSD50_ENV
845 uio.uio_td = curthread;
847 uio.uio_procp = curproc;
850 if (ap->a_sync & VM_PAGER_PUT_SYNC)
852 /*if (ap->a_sync & VM_PAGER_PUT_INVAL)
853 * sync |= IO_INVAL; */
856 code = afs_write(avc, &uio, sync, osi_curcred(), 0);
859 pmap_qremove(kva, npages);
860 relpbuf(bp, &afs_pbuf_freecnt);
863 size = ap->a_count - uio.uio_resid;
864 for (i = 0; i < round_page(size) / PAGE_SIZE; i++) {
865 ap->a_rtvals[i] = VM_PAGER_OK;
866 vm_page_undirty(ap->a_m[i]);
869 return ap->a_rtvals[0];
874 struct vop_ioctl_args /* {
875 * struct vnode *a_vp;
879 * struct ucred *a_cred;
883 struct vcache *tvc = VTOAFS(ap->a_vp);
886 /* in case we ever get in here... */
888 AFS_STATCNT(afs_ioctl);
889 if (((ap->a_command >> 8) & 0xff) == 'V') {
890 /* This is a VICEIOCTL call */
892 error = HandleIoctl(tvc, NULL /*Not used */ ,
893 ap->a_command, ap->a_data);
897 /* No-op call; just return. */
905 struct vop_poll_args /* {
906 * struct vnode *a_vp;
908 * struct ucred *a_cred;
913 * We should really check to see if I/O is possible.
921 * NB Currently unsupported.
926 struct vop_mmap_args /* {
927 * struct vnode *a_vp;
929 * struct ucred *a_cred;
938 struct vop_fsync_args /* {
939 * struct vnode *a_vp;
940 * struct ucred *a_cred;
946 register struct vnode *vp = ap->a_vp;
949 /*vflushbuf(vp, wait); */
950 #ifdef AFS_FBSD60_ENV
951 error = afs_fsync(VTOAFS(vp), ap->a_td->td_ucred);
954 error = afs_fsync(VTOAFS(vp), ap->a_cred);
956 error = afs_fsync(VTOAFS(vp), afs_osi_credp);
964 struct vop_remove_args /* {
965 * struct vnode *a_dvp;
966 * struct vnode *a_vp;
967 * struct componentname *a_cnp;
971 register struct vnode *vp = ap->a_vp;
972 register struct vnode *dvp = ap->a_dvp;
976 error = afs_remove(VTOAFS(dvp), name, cnp->cn_cred);
985 struct vop_link_args /* {
986 * struct vnode *a_vp;
987 * struct vnode *a_tdvp;
988 * struct componentname *a_cnp;
992 register struct vnode *dvp = ap->a_tdvp;
993 register struct vnode *vp = ap->a_vp;
994 #ifdef AFS_FBSD50_ENV
995 struct thread *p = ap->a_cnp->cn_thread;
997 struct proc *p = ap->a_cnp->cn_proc;
1001 if (dvp->v_mount != vp->v_mount) {
1005 if (vp->v_type == VDIR) {
1009 if ((error = vn_lock(vp, LK_EXCLUSIVE, p)) != 0) {
1013 error = afs_link(VTOAFS(vp), VTOAFS(dvp), name, cnp->cn_cred);
1016 VOP_UNLOCK(vp, 0, p);
1024 struct vop_rename_args /* {
1025 * struct vnode *a_fdvp;
1026 * struct vnode *a_fvp;
1027 * struct componentname *a_fcnp;
1028 * struct vnode *a_tdvp;
1029 * struct vnode *a_tvp;
1030 * struct componentname *a_tcnp;
1034 struct componentname *fcnp = ap->a_fcnp;
1036 struct componentname *tcnp = ap->a_tcnp;
1038 struct vnode *tvp = ap->a_tvp;
1039 register struct vnode *tdvp = ap->a_tdvp;
1040 struct vnode *fvp = ap->a_fvp;
1041 register struct vnode *fdvp = ap->a_fdvp;
1042 #ifdef AFS_FBSD50_ENV
1043 struct thread *p = fcnp->cn_thread;
1045 struct proc *p = fcnp->cn_proc;
1049 * Check for cross-device rename.
1051 if ((fvp->v_mount != tdvp->v_mount)
1052 || (tvp && (fvp->v_mount != tvp->v_mount))) {
1066 * if fvp == tvp, we're just removing one name of a pair of
1067 * directory entries for the same element. convert call into rename.
1068 ( (pinched from FreeBSD 4.4's ufs_rename())
1072 if (fvp->v_type == VDIR) {
1077 /* Release destination completely. */
1081 /* Delete source. */
1084 fcnp->cn_flags &= ~MODMASK;
1085 fcnp->cn_flags |= LOCKPARENT | LOCKLEAF;
1086 if ((fcnp->cn_flags & SAVESTART) == 0)
1087 panic("afs_rename: lost from startdir");
1088 fcnp->cn_nameiop = DELETE;
1090 error = relookup(fdvp, &fvp, fcnp);
1097 error = VOP_REMOVE(fdvp, fvp, fcnp);
1105 if ((error = vn_lock(fvp, LK_EXCLUSIVE, p)) != 0)
1108 MALLOC(fname, char *, fcnp->cn_namelen + 1, M_TEMP, M_WAITOK);
1109 memcpy(fname, fcnp->cn_nameptr, fcnp->cn_namelen);
1110 fname[fcnp->cn_namelen] = '\0';
1111 MALLOC(tname, char *, tcnp->cn_namelen + 1, M_TEMP, M_WAITOK);
1112 memcpy(tname, tcnp->cn_nameptr, tcnp->cn_namelen);
1113 tname[tcnp->cn_namelen] = '\0';
1117 /* XXX use "from" or "to" creds? NFS uses "to" creds */
1119 afs_rename(VTOAFS(fdvp), fname, VTOAFS(tdvp), tname, tcnp->cn_cred);
1122 FREE(fname, M_TEMP);
1123 FREE(tname, M_TEMP);
1137 struct vop_mkdir_args /* {
1138 * struct vnode *a_dvp;
1139 * struct vnode **a_vpp;
1140 * struct componentname *a_cnp;
1141 * struct vattr *a_vap;
1144 register struct vnode *dvp = ap->a_dvp;
1145 register struct vattr *vap = ap->a_vap;
1148 #ifdef AFS_FBSD50_ENV
1149 struct thread *p = ap->a_cnp->cn_thread;
1151 struct proc *p = ap->a_cnp->cn_proc;
1156 if ((cnp->cn_flags & HASBUF) == 0)
1157 panic("afs_vop_mkdir: no name");
1160 error = afs_mkdir(VTOAFS(dvp), name, vap, &vcp, cnp->cn_cred);
1167 *ap->a_vpp = AFSTOV(vcp);
1168 vn_lock(AFSTOV(vcp), LK_EXCLUSIVE | LK_RETRY, p);
1177 struct vop_rmdir_args /* {
1178 * struct vnode *a_dvp;
1179 * struct vnode *a_vp;
1180 * struct componentname *a_cnp;
1184 register struct vnode *dvp = ap->a_dvp;
1188 error = afs_rmdir(VTOAFS(dvp), name, cnp->cn_cred);
1194 /* struct vop_symlink_args {
1195 * struct vnode *a_dvp;
1196 * struct vnode **a_vpp;
1197 * struct componentname *a_cnp;
1198 * struct vattr *a_vap;
1203 afs_vop_symlink(struct vop_symlink_args *ap)
1206 struct vnode *newvp;
1217 afs_symlink(VTOAFS(dvp), name, ap->a_vap, ap->a_target, cnp->cn_cred);
1219 error = afs_lookup(VTOAFS(dvp), name, &vcp, cnp->cn_cred);
1221 newvp = AFSTOV(vcp);
1222 #ifdef AFS_FBSD50_ENV
1223 vn_lock(newvp, LK_EXCLUSIVE | LK_RETRY, cnp->cn_thread);
1225 vn_lock(newvp, LK_EXCLUSIVE | LK_RETRY, cnp->cn_proc);
1231 *(ap->a_vpp) = newvp;
1237 struct vop_readdir_args /* {
1238 * struct vnode *a_vp;
1239 * struct uio *a_uio;
1240 * struct ucred *a_cred;
1242 * u_long *a_cookies;
1248 /* printf("readdir %x cookies %x ncookies %d\n", ap->a_vp, ap->a_cookies,
1250 off = ap->a_uio->uio_offset;
1253 afs_readdir(VTOAFS(ap->a_vp), ap->a_uio, ap->a_cred, ap->a_eofflag);
1255 if (!error && ap->a_ncookies != NULL) {
1256 struct uio *uio = ap->a_uio;
1257 const struct dirent *dp, *dp_start, *dp_end;
1259 u_long *cookies, *cookiep;
1261 if (uio->uio_segflg != UIO_SYSSPACE || uio->uio_iovcnt != 1)
1262 panic("afs_readdir: burned cookies");
1263 dp = (const struct dirent *)
1264 ((const char *)uio->uio_iov->iov_base - (uio->uio_offset - off));
1266 dp_end = (const struct dirent *)uio->uio_iov->iov_base;
1267 for (dp_start = dp, ncookies = 0; dp < dp_end;
1268 dp = (const struct dirent *)((const char *)dp + dp->d_reclen))
1271 MALLOC(cookies, u_long *, ncookies * sizeof(u_long), M_TEMP,
1273 for (dp = dp_start, cookiep = cookies; dp < dp_end;
1274 dp = (const struct dirent *)((const char *)dp + dp->d_reclen)) {
1275 off += dp->d_reclen;
1278 *ap->a_cookies = cookies;
1279 *ap->a_ncookies = ncookies;
1286 afs_vop_readlink(ap)
1287 struct vop_readlink_args /* {
1288 * struct vnode *a_vp;
1289 * struct uio *a_uio;
1290 * struct ucred *a_cred;
1294 /* printf("readlink %x\n", ap->a_vp);*/
1296 error = afs_readlink(VTOAFS(ap->a_vp), ap->a_uio, ap->a_cred);
1301 extern int prtactive;
1304 afs_vop_inactive(ap)
1305 struct vop_inactive_args /* {
1306 * struct vnode *a_vp;
1310 register struct vnode *vp = ap->a_vp;
1312 if (prtactive && vp->v_usecount != 0)
1313 vprint("afs_vop_inactive(): pushing active", vp);
1316 afs_InactiveVCache(VTOAFS(vp), 0); /* decrs ref counts */
1318 VOP_UNLOCK(vp, 0, ap->a_p);
1323 * struct vop_reclaim_args {
1324 * struct vnode *a_vp;
1328 afs_vop_reclaim(struct vop_reclaim_args *ap)
1330 /* copied from ../OBSD/osi_vnodeops.c:afs_nbsd_reclaim() */
1332 struct vnode *vp = ap->a_vp;
1333 struct vcache *avc = VTOAFS(vp);
1334 int haveGlock = ISAFS_GLOCK();
1335 int haveVlock = CheckLock(&afs_xvcache);
1340 ObtainWriteLock(&afs_xvcache, 901);
1341 #ifndef AFS_DISCON_ENV
1342 code = afs_FlushVCache(avc, &slept); /* tosses our stuff from vnode */
1344 /* reclaim the vnode and the in-memory vcache, but keep the on-disk vcache */
1345 code = afs_FlushVS(avc);
1348 ReleaseWriteLock(&afs_xvcache);
1353 * XXX Pretend it worked, to prevent panic on shutdown
1354 * Garrett, please fix - Jim Rees
1357 printf("afs_vop_reclaim: afs_FlushVCache failed code %d\n", code);
1359 #ifdef AFS_FBSD60_ENV
1360 vnode_destroy_vobject(vp);
1365 #ifndef AFS_FBSD60_ENV
1368 struct vop_bmap_args /* {
1369 * struct vnode *a_vp;
1371 * struct vnode **a_vpp;
1378 *ap->a_bnp = ap->a_bn * (PAGE_SIZE / DEV_BSIZE);
1381 *ap->a_vpp = ap->a_vp;
1383 if (ap->a_runp != NULL)
1385 if (ap->a_runb != NULL)
1393 afs_vop_strategy(ap)
1394 struct vop_strategy_args /* {
1400 error = afs_ustrategy(ap->a_bp);
1407 struct vop_print_args /* {
1408 * struct vnode *a_vp;
1411 register struct vnode *vp = ap->a_vp;
1412 register struct vcache *vc = VTOAFS(ap->a_vp);
1415 #ifdef AFS_FBSD50_ENV
1416 printf("tag %s, fid: %d.%x.%x.%x, opens %d, writers %d", vp->v_tag,
1417 (int)vc->fid.Cell, (u_int) vc->fid.Fid.Volume,
1418 (u_int) vc->fid.Fid.Vnode, (u_int) vc->fid.Fid.Unique, vc->opens,
1419 vc->execsOrWriters);
1421 printf("tag %d, fid: %ld.%x.%x.%x, opens %d, writers %d", vp->v_tag,
1422 vc->fid.Cell, (u_int) vc->fid.Fid.Volume,
1423 (u_int) vc->fid.Fid.Vnode, (u_int) vc->fid.Fid.Unique, vc->opens,
1424 vc->execsOrWriters);
1426 printf("\n states%s%s%s%s%s", (s & CStatd) ? " statd" : "",
1427 (s & CRO) ? " readonly" : "", (s & CDirty) ? " dirty" : "",
1428 (s & CMAPPED) ? " mapped" : "",
1429 (s & CVFlushed) ? " flush in progress" : "");
1435 * Advisory record locking support (fcntl() POSIX style)
1439 struct vop_advlock_args /* {
1440 * struct vnode *a_vp;
1443 * struct flock *a_fl;
1448 struct ucred cr = *osi_curcred();
1452 afs_lockctl(VTOAFS(ap->a_vp), ap->a_fl, ap->a_op, &cr, (int)ap->a_id);