2 * Copyright (c) 2007 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/vfs/hammer/hammer_vnops.c,v 1.22 2008/01/18 07:02:41 dillon Exp $
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/kernel.h>
40 #include <sys/fcntl.h>
41 #include <sys/namecache.h>
42 #include <sys/vnode.h>
43 #include <sys/lockf.h>
44 #include <sys/event.h>
46 #include <sys/dirent.h>
47 #include <vm/vm_extern.h>
48 #include <vfs/fifofs/fifo.h>
54 /*static int hammer_vop_vnoperate(struct vop_generic_args *);*/
55 static int hammer_vop_fsync(struct vop_fsync_args *);
56 static int hammer_vop_read(struct vop_read_args *);
57 static int hammer_vop_write(struct vop_write_args *);
58 static int hammer_vop_access(struct vop_access_args *);
59 static int hammer_vop_advlock(struct vop_advlock_args *);
60 static int hammer_vop_close(struct vop_close_args *);
61 static int hammer_vop_ncreate(struct vop_ncreate_args *);
62 static int hammer_vop_getattr(struct vop_getattr_args *);
63 static int hammer_vop_nresolve(struct vop_nresolve_args *);
64 static int hammer_vop_nlookupdotdot(struct vop_nlookupdotdot_args *);
65 static int hammer_vop_nlink(struct vop_nlink_args *);
66 static int hammer_vop_nmkdir(struct vop_nmkdir_args *);
67 static int hammer_vop_nmknod(struct vop_nmknod_args *);
68 static int hammer_vop_open(struct vop_open_args *);
69 static int hammer_vop_pathconf(struct vop_pathconf_args *);
70 static int hammer_vop_print(struct vop_print_args *);
71 static int hammer_vop_readdir(struct vop_readdir_args *);
72 static int hammer_vop_readlink(struct vop_readlink_args *);
73 static int hammer_vop_nremove(struct vop_nremove_args *);
74 static int hammer_vop_nrename(struct vop_nrename_args *);
75 static int hammer_vop_nrmdir(struct vop_nrmdir_args *);
76 static int hammer_vop_setattr(struct vop_setattr_args *);
77 static int hammer_vop_strategy(struct vop_strategy_args *);
78 static int hammer_vop_nsymlink(struct vop_nsymlink_args *);
79 static int hammer_vop_nwhiteout(struct vop_nwhiteout_args *);
81 static int hammer_vop_fifoclose (struct vop_close_args *);
82 static int hammer_vop_fiforead (struct vop_read_args *);
83 static int hammer_vop_fifowrite (struct vop_write_args *);
85 static int hammer_vop_specclose (struct vop_close_args *);
86 static int hammer_vop_specread (struct vop_read_args *);
87 static int hammer_vop_specwrite (struct vop_write_args *);
89 struct vop_ops hammer_vnode_vops = {
90 .vop_default = vop_defaultop,
91 .vop_fsync = hammer_vop_fsync,
92 .vop_getpages = vop_stdgetpages,
93 .vop_putpages = vop_stdputpages,
94 .vop_read = hammer_vop_read,
95 .vop_write = hammer_vop_write,
96 .vop_access = hammer_vop_access,
97 .vop_advlock = hammer_vop_advlock,
98 .vop_close = hammer_vop_close,
99 .vop_ncreate = hammer_vop_ncreate,
100 .vop_getattr = hammer_vop_getattr,
101 .vop_inactive = hammer_vop_inactive,
102 .vop_reclaim = hammer_vop_reclaim,
103 .vop_nresolve = hammer_vop_nresolve,
104 .vop_nlookupdotdot = hammer_vop_nlookupdotdot,
105 .vop_nlink = hammer_vop_nlink,
106 .vop_nmkdir = hammer_vop_nmkdir,
107 .vop_nmknod = hammer_vop_nmknod,
108 .vop_open = hammer_vop_open,
109 .vop_pathconf = hammer_vop_pathconf,
110 .vop_print = hammer_vop_print,
111 .vop_readdir = hammer_vop_readdir,
112 .vop_readlink = hammer_vop_readlink,
113 .vop_nremove = hammer_vop_nremove,
114 .vop_nrename = hammer_vop_nrename,
115 .vop_nrmdir = hammer_vop_nrmdir,
116 .vop_setattr = hammer_vop_setattr,
117 .vop_strategy = hammer_vop_strategy,
118 .vop_nsymlink = hammer_vop_nsymlink,
119 .vop_nwhiteout = hammer_vop_nwhiteout
122 struct vop_ops hammer_spec_vops = {
123 .vop_default = spec_vnoperate,
124 .vop_fsync = hammer_vop_fsync,
125 .vop_read = hammer_vop_specread,
126 .vop_write = hammer_vop_specwrite,
127 .vop_access = hammer_vop_access,
128 .vop_close = hammer_vop_specclose,
129 .vop_getattr = hammer_vop_getattr,
130 .vop_inactive = hammer_vop_inactive,
131 .vop_reclaim = hammer_vop_reclaim,
132 .vop_setattr = hammer_vop_setattr
135 struct vop_ops hammer_fifo_vops = {
136 .vop_default = fifo_vnoperate,
137 .vop_fsync = hammer_vop_fsync,
138 .vop_read = hammer_vop_fiforead,
139 .vop_write = hammer_vop_fifowrite,
140 .vop_access = hammer_vop_access,
141 .vop_close = hammer_vop_fifoclose,
142 .vop_getattr = hammer_vop_getattr,
143 .vop_inactive = hammer_vop_inactive,
144 .vop_reclaim = hammer_vop_reclaim,
145 .vop_setattr = hammer_vop_setattr
148 static int hammer_dounlink(struct nchandle *nch, struct vnode *dvp,
149 struct ucred *cred, int flags);
150 static int hammer_vop_strategy_read(struct vop_strategy_args *ap);
151 static int hammer_vop_strategy_write(struct vop_strategy_args *ap);
156 hammer_vop_vnoperate(struct vop_generic_args *)
158 return (VOCALL(&hammer_vnode_vops, ap));
163 * hammer_vop_fsync { vp, waitfor }
167 hammer_vop_fsync(struct vop_fsync_args *ap)
173 error = hammer_sync_inode(ip, ap->a_waitfor, 0);
178 * hammer_vop_read { vp, uio, ioflag, cred }
182 hammer_vop_read(struct vop_read_args *ap)
184 struct hammer_transaction trans;
193 if (ap->a_vp->v_type != VREG)
197 seqcount = ap->a_ioflag >> 16;
199 hammer_start_transaction(&trans, ip->hmp);
202 * Access the data in HAMMER_BUFSIZE blocks via the buffer cache.
205 while (uio->uio_resid > 0 && uio->uio_offset < ip->ino_rec.ino_size) {
206 offset = uio->uio_offset & HAMMER_BUFMASK;
208 error = cluster_read(ap->a_vp, ip->ino_rec.ino_size,
209 uio->uio_offset - offset, HAMMER_BUFSIZE,
210 MAXBSIZE, seqcount, &bp);
212 error = bread(ap->a_vp, uio->uio_offset - offset,
213 HAMMER_BUFSIZE, &bp);
218 /* bp->b_flags |= B_CLUSTEROK; temporarily disabled */
219 n = HAMMER_BUFSIZE - offset;
220 if (n > uio->uio_resid)
222 if (n > ip->ino_rec.ino_size - uio->uio_offset)
223 n = (int)(ip->ino_rec.ino_size - uio->uio_offset);
224 error = uiomove((char *)bp->b_data + offset, n, uio);
229 if ((ip->flags & HAMMER_INODE_RO) == 0) {
230 ip->ino_rec.ino_atime = trans.tid;
231 hammer_modify_inode(&trans, ip, HAMMER_INODE_ITIMES);
235 hammer_commit_transaction(&trans);
240 * hammer_vop_write { vp, uio, ioflag, cred }
244 hammer_vop_write(struct vop_write_args *ap)
246 struct hammer_transaction trans;
247 struct hammer_inode *ip;
255 if (ap->a_vp->v_type != VREG)
260 if (ip->flags & HAMMER_INODE_RO)
264 * Create a transaction to cover the operations we perform.
266 hammer_start_transaction(&trans, ip->hmp);
272 if (ap->a_ioflag & IO_APPEND)
273 uio->uio_offset = ip->ino_rec.ino_size;
276 * Check for illegal write offsets. Valid range is 0...2^63-1
278 if (uio->uio_offset < 0 || uio->uio_offset + uio->uio_resid <= 0) {
279 hammer_commit_transaction(&trans);
284 * Access the data in HAMMER_BUFSIZE blocks via the buffer cache.
286 while (uio->uio_resid > 0) {
287 offset = uio->uio_offset & HAMMER_BUFMASK;
288 if (uio->uio_segflg == UIO_NOCOPY) {
290 * Issuing a write with the same data backing the
291 * buffer. Instantiate the buffer to collect the
292 * backing vm pages, then read-in any missing bits.
294 * This case is used by vop_stdputpages().
296 bp = getblk(ap->a_vp, uio->uio_offset, HAMMER_BUFSIZE,
298 if ((bp->b_flags & B_CACHE) == 0) {
300 error = bread(ap->a_vp,
301 uio->uio_offset - offset,
302 HAMMER_BUFSIZE, &bp);
308 } else if (offset == 0 && uio->uio_resid >= HAMMER_BUFSIZE) {
310 * entirely overwrite the buffer
312 bp = getblk(ap->a_vp, uio->uio_offset, HAMMER_BUFSIZE,
314 } else if (offset == 0 && uio->uio_offset >= ip->ino_rec.ino_size) {
318 bp = getblk(ap->a_vp, uio->uio_offset, HAMMER_BUFSIZE,
323 * Partial overwrite, read in any missing bits then
324 * replace the portion being written.
326 error = bread(ap->a_vp, uio->uio_offset - offset,
327 HAMMER_BUFSIZE, &bp);
334 n = HAMMER_BUFSIZE - offset;
335 if (n > uio->uio_resid)
337 error = uiomove((char *)bp->b_data + offset, n, uio);
342 /* bp->b_flags |= B_CLUSTEROK; temporarily disabled */
343 if (ip->ino_rec.ino_size < uio->uio_offset) {
344 ip->ino_rec.ino_size = uio->uio_offset;
345 flags = HAMMER_INODE_RDIRTY;
346 vnode_pager_setsize(ap->a_vp, ip->ino_rec.ino_size);
350 ip->ino_rec.ino_mtime = trans.tid;
351 flags |= HAMMER_INODE_ITIMES | HAMMER_INODE_BUFS;
352 hammer_modify_inode(&trans, ip, flags);
353 if (ap->a_ioflag & IO_SYNC) {
355 } else if (ap->a_ioflag & IO_DIRECT) {
362 hammer_abort_transaction(&trans);
364 hammer_commit_transaction(&trans);
369 * hammer_vop_access { vp, mode, cred }
373 hammer_vop_access(struct vop_access_args *ap)
375 struct hammer_inode *ip = VTOI(ap->a_vp);
380 uid = hammer_to_unix_xid(&ip->ino_data.uid);
381 gid = hammer_to_unix_xid(&ip->ino_data.gid);
383 error = vop_helper_access(ap, uid, gid, ip->ino_data.mode,
384 ip->ino_data.uflags);
389 * hammer_vop_advlock { vp, id, op, fl, flags }
393 hammer_vop_advlock(struct vop_advlock_args *ap)
395 struct hammer_inode *ip = VTOI(ap->a_vp);
397 return (lf_advlock(ap, &ip->advlock, ip->ino_rec.ino_size));
401 * hammer_vop_close { vp, fflag }
405 hammer_vop_close(struct vop_close_args *ap)
407 return (vop_stdclose(ap));
411 * hammer_vop_ncreate { nch, dvp, vpp, cred, vap }
413 * The operating system has already ensured that the directory entry
414 * does not exist and done all appropriate namespace locking.
418 hammer_vop_ncreate(struct vop_ncreate_args *ap)
420 struct hammer_transaction trans;
421 struct hammer_inode *dip;
422 struct hammer_inode *nip;
423 struct nchandle *nch;
427 dip = VTOI(ap->a_dvp);
429 if (dip->flags & HAMMER_INODE_RO)
433 * Create a transaction to cover the operations we perform.
435 hammer_start_transaction(&trans, dip->hmp);
438 * Create a new filesystem object of the requested type. The
439 * returned inode will be referenced but not locked.
442 error = hammer_create_inode(&trans, ap->a_vap, ap->a_cred, dip, &nip);
444 kprintf("hammer_create_inode error %d\n", error);
446 hammer_abort_transaction(&trans);
452 * Add the new filesystem object to the directory. This will also
453 * bump the inode's link count.
455 error = hammer_ip_add_directory(&trans, dip, nch->ncp, nip);
457 kprintf("hammer_ip_add_directory error %d\n", error);
463 hammer_rel_inode(nip, 0);
464 hammer_abort_transaction(&trans);
467 hammer_commit_transaction(&trans);
468 error = hammer_get_vnode(nip, LK_EXCLUSIVE, ap->a_vpp);
469 hammer_rel_inode(nip, 0);
471 cache_setunresolved(ap->a_nch);
472 cache_setvp(ap->a_nch, *ap->a_vpp);
479 * hammer_vop_getattr { vp, vap }
483 hammer_vop_getattr(struct vop_getattr_args *ap)
485 struct hammer_inode *ip = VTOI(ap->a_vp);
486 struct vattr *vap = ap->a_vap;
489 if (cache_check_fsmid_vp(ap->a_vp, &ip->fsmid) &&
490 (vp->v_mount->mnt_flag & MNT_RDONLY) == 0 &&
495 hammer_itimes(ap->a_vp);
498 vap->va_fsid = ip->hmp->fsid_udev;
499 vap->va_fileid = ip->ino_rec.base.base.obj_id;
500 vap->va_mode = ip->ino_data.mode;
501 vap->va_nlink = ip->ino_rec.ino_nlinks;
502 vap->va_uid = hammer_to_unix_xid(&ip->ino_data.uid);
503 vap->va_gid = hammer_to_unix_xid(&ip->ino_data.gid);
506 vap->va_size = ip->ino_rec.ino_size;
507 hammer_to_timespec(ip->ino_rec.ino_atime, &vap->va_atime);
508 hammer_to_timespec(ip->ino_rec.ino_mtime, &vap->va_mtime);
509 hammer_to_timespec(ip->ino_data.ctime, &vap->va_ctime);
510 vap->va_flags = ip->ino_data.uflags;
511 vap->va_gen = 1; /* hammer inums are unique for all time */
512 vap->va_blocksize = 32768; /* XXX - extract from root volume */
513 vap->va_bytes = ip->ino_rec.ino_size;
514 vap->va_type = hammer_get_vnode_type(ip->ino_rec.base.base.obj_type);
515 vap->va_filerev = 0; /* XXX */
516 /* mtime uniquely identifies any adjustments made to the file */
517 vap->va_fsmid = ip->ino_rec.ino_mtime;
518 vap->va_uid_uuid = ip->ino_data.uid;
519 vap->va_gid_uuid = ip->ino_data.gid;
520 vap->va_fsid_uuid = ip->hmp->fsid;
521 vap->va_vaflags = VA_UID_UUID_VALID | VA_GID_UUID_VALID |
524 switch (ip->ino_rec.base.base.obj_type) {
525 case HAMMER_OBJTYPE_CDEV:
526 case HAMMER_OBJTYPE_BDEV:
527 vap->va_rmajor = ip->ino_data.rmajor;
528 vap->va_rminor = ip->ino_data.rminor;
538 * hammer_vop_nresolve { nch, dvp, cred }
540 * Locate the requested directory entry.
544 hammer_vop_nresolve(struct vop_nresolve_args *ap)
546 struct namecache *ncp;
550 struct hammer_cursor cursor;
551 union hammer_record_ondisk *rec;
561 * Misc initialization, plus handle as-of name extensions. Look for
562 * the '@@' extension. Note that as-of files and directories cannot
565 dip = VTOI(ap->a_dvp);
566 ncp = ap->a_nch->ncp;
567 asof = dip->obj_asof;
571 for (i = 0; i < nlen; ++i) {
572 if (ncp->nc_name[i] == '@' && ncp->nc_name[i+1] == '@') {
573 asof = hammer_str_to_tid(ncp->nc_name + i + 2);
574 kprintf("ASOF %016llx\n", asof);
575 flags |= HAMMER_INODE_RO;
582 * If there is no path component the time extension is relative to
586 ip = hammer_get_inode(dip->hmp, &dip->cache[1], dip->obj_id,
587 asof, flags, &error);
589 error = hammer_get_vnode(ip, LK_EXCLUSIVE, &vp);
590 hammer_rel_inode(ip, 0);
596 cache_setvp(ap->a_nch, vp);
603 * Calculate the namekey and setup the key range for the scan. This
604 * works kinda like a chained hash table where the lower 32 bits
605 * of the namekey synthesize the chain.
607 * The key range is inclusive of both key_beg and key_end.
609 namekey = hammer_directory_namekey(ncp->nc_name, nlen);
611 hammer_init_cursor_hmp(&cursor, &dip->cache[0], dip->hmp);
612 cursor.key_beg.obj_id = dip->obj_id;
613 cursor.key_beg.key = namekey;
614 cursor.key_beg.create_tid = 0;
615 cursor.key_beg.delete_tid = 0;
616 cursor.key_beg.rec_type = HAMMER_RECTYPE_DIRENTRY;
617 cursor.key_beg.obj_type = 0;
619 cursor.key_end = cursor.key_beg;
620 cursor.key_end.key |= 0xFFFFFFFFULL;
622 cursor.flags |= HAMMER_CURSOR_END_INCLUSIVE | HAMMER_CURSOR_ASOF;
625 * Scan all matching records (the chain), locate the one matching
626 * the requested path component.
628 * The hammer_ip_*() functions merge in-memory records with on-disk
629 * records for the purposes of the search.
631 error = hammer_ip_first(&cursor, dip);
636 error = hammer_ip_resolve_data(&cursor);
640 if (nlen == rec->entry.base.data_len &&
641 bcmp(ncp->nc_name, cursor.data, nlen) == 0) {
642 obj_id = rec->entry.obj_id;
645 error = hammer_ip_next(&cursor);
647 hammer_done_cursor(&cursor);
649 ip = hammer_get_inode(dip->hmp, &dip->cache[1],
650 obj_id, asof, flags, &error);
652 error = hammer_get_vnode(ip, LK_EXCLUSIVE, &vp);
653 hammer_rel_inode(ip, 0);
659 cache_setvp(ap->a_nch, vp);
662 } else if (error == ENOENT) {
663 cache_setvp(ap->a_nch, NULL);
669 * hammer_vop_nlookupdotdot { dvp, vpp, cred }
671 * Locate the parent directory of a directory vnode.
673 * dvp is referenced but not locked. *vpp must be returned referenced and
674 * locked. A parent_obj_id of 0 does not necessarily indicate that we are
675 * at the root, instead it could indicate that the directory we were in was
680 hammer_vop_nlookupdotdot(struct vop_nlookupdotdot_args *ap)
682 struct hammer_inode *dip;
683 struct hammer_inode *ip;
684 u_int64_t parent_obj_id;
687 dip = VTOI(ap->a_dvp);
688 if ((parent_obj_id = dip->ino_data.parent_obj_id) == 0) {
693 ip = hammer_get_inode(dip->hmp, &dip->cache[1], parent_obj_id,
694 dip->obj_asof, dip->flags, &error);
699 error = hammer_get_vnode(ip, LK_EXCLUSIVE, ap->a_vpp);
700 hammer_rel_inode(ip, 0);
705 * hammer_vop_nlink { nch, dvp, vp, cred }
709 hammer_vop_nlink(struct vop_nlink_args *ap)
711 struct hammer_transaction trans;
712 struct hammer_inode *dip;
713 struct hammer_inode *ip;
714 struct nchandle *nch;
718 dip = VTOI(ap->a_dvp);
721 if (dip->flags & HAMMER_INODE_RO)
723 if (ip->flags & HAMMER_INODE_RO)
727 * Create a transaction to cover the operations we perform.
729 hammer_start_transaction(&trans, dip->hmp);
732 * Add the filesystem object to the directory. Note that neither
733 * dip nor ip are referenced or locked, but their vnodes are
734 * referenced. This function will bump the inode's link count.
736 error = hammer_ip_add_directory(&trans, dip, nch->ncp, ip);
742 hammer_abort_transaction(&trans);
744 cache_setunresolved(nch);
745 cache_setvp(nch, ap->a_vp);
746 hammer_commit_transaction(&trans);
752 * hammer_vop_nmkdir { nch, dvp, vpp, cred, vap }
754 * The operating system has already ensured that the directory entry
755 * does not exist and done all appropriate namespace locking.
759 hammer_vop_nmkdir(struct vop_nmkdir_args *ap)
761 struct hammer_transaction trans;
762 struct hammer_inode *dip;
763 struct hammer_inode *nip;
764 struct nchandle *nch;
768 dip = VTOI(ap->a_dvp);
770 if (dip->flags & HAMMER_INODE_RO)
774 * Create a transaction to cover the operations we perform.
776 hammer_start_transaction(&trans, dip->hmp);
779 * Create a new filesystem object of the requested type. The
780 * returned inode will be referenced but not locked.
782 error = hammer_create_inode(&trans, ap->a_vap, ap->a_cred, dip, &nip);
784 kprintf("hammer_mkdir error %d\n", error);
786 hammer_abort_transaction(&trans);
792 * Add the new filesystem object to the directory. This will also
793 * bump the inode's link count.
795 error = hammer_ip_add_directory(&trans, dip, nch->ncp, nip);
797 kprintf("hammer_mkdir (add) error %d\n", error);
803 hammer_rel_inode(nip, 0);
804 hammer_abort_transaction(&trans);
807 hammer_commit_transaction(&trans);
808 error = hammer_get_vnode(nip, LK_EXCLUSIVE, ap->a_vpp);
809 hammer_rel_inode(nip, 0);
811 cache_setunresolved(ap->a_nch);
812 cache_setvp(ap->a_nch, *ap->a_vpp);
819 * hammer_vop_nmknod { nch, dvp, vpp, cred, vap }
821 * The operating system has already ensured that the directory entry
822 * does not exist and done all appropriate namespace locking.
826 hammer_vop_nmknod(struct vop_nmknod_args *ap)
828 struct hammer_transaction trans;
829 struct hammer_inode *dip;
830 struct hammer_inode *nip;
831 struct nchandle *nch;
835 dip = VTOI(ap->a_dvp);
837 if (dip->flags & HAMMER_INODE_RO)
841 * Create a transaction to cover the operations we perform.
843 hammer_start_transaction(&trans, dip->hmp);
846 * Create a new filesystem object of the requested type. The
847 * returned inode will be referenced but not locked.
849 error = hammer_create_inode(&trans, ap->a_vap, ap->a_cred, dip, &nip);
851 hammer_abort_transaction(&trans);
857 * Add the new filesystem object to the directory. This will also
858 * bump the inode's link count.
860 error = hammer_ip_add_directory(&trans, dip, nch->ncp, nip);
866 hammer_rel_inode(nip, 0);
867 hammer_abort_transaction(&trans);
870 hammer_commit_transaction(&trans);
871 error = hammer_get_vnode(nip, LK_EXCLUSIVE, ap->a_vpp);
872 hammer_rel_inode(nip, 0);
874 cache_setunresolved(ap->a_nch);
875 cache_setvp(ap->a_nch, *ap->a_vpp);
882 * hammer_vop_open { vp, mode, cred, fp }
886 hammer_vop_open(struct vop_open_args *ap)
888 if ((ap->a_mode & FWRITE) && (VTOI(ap->a_vp)->flags & HAMMER_INODE_RO))
891 return(vop_stdopen(ap));
895 * hammer_vop_pathconf { vp, name, retval }
899 hammer_vop_pathconf(struct vop_pathconf_args *ap)
905 * hammer_vop_print { vp }
909 hammer_vop_print(struct vop_print_args *ap)
915 * hammer_vop_readdir { vp, uio, cred, *eofflag, *ncookies, off_t **cookies }
919 hammer_vop_readdir(struct vop_readdir_args *ap)
921 struct hammer_cursor cursor;
922 struct hammer_inode *ip;
924 hammer_record_ondisk_t rec;
925 hammer_base_elm_t base;
935 saveoff = uio->uio_offset;
937 if (ap->a_ncookies) {
938 ncookies = uio->uio_resid / 16 + 1;
941 cookies = kmalloc(ncookies * sizeof(off_t), M_TEMP, M_WAITOK);
950 * Handle artificial entries
954 r = vop_write_dirent(&error, uio, ip->obj_id, DT_DIR, 1, ".");
958 cookies[cookie_index] = saveoff;
961 if (cookie_index == ncookies)
965 if (ip->ino_data.parent_obj_id) {
966 r = vop_write_dirent(&error, uio,
967 ip->ino_data.parent_obj_id,
970 r = vop_write_dirent(&error, uio,
971 ip->obj_id, DT_DIR, 2, "..");
976 cookies[cookie_index] = saveoff;
979 if (cookie_index == ncookies)
984 * Key range (begin and end inclusive) to scan. Directory keys
985 * directly translate to a 64 bit 'seek' position.
987 hammer_init_cursor_hmp(&cursor, &ip->cache[0], ip->hmp);
988 cursor.key_beg.obj_id = ip->obj_id;
989 cursor.key_beg.create_tid = 0;
990 cursor.key_beg.delete_tid = 0;
991 cursor.key_beg.rec_type = HAMMER_RECTYPE_DIRENTRY;
992 cursor.key_beg.obj_type = 0;
993 cursor.key_beg.key = saveoff;
995 cursor.key_end = cursor.key_beg;
996 cursor.key_end.key = HAMMER_MAX_KEY;
997 cursor.asof = ip->obj_asof;
998 cursor.flags |= HAMMER_CURSOR_END_INCLUSIVE | HAMMER_CURSOR_ASOF;
1000 error = hammer_ip_first(&cursor, ip);
1002 while (error == 0) {
1003 error = hammer_ip_resolve_data(&cursor);
1006 rec = cursor.record;
1007 base = &rec->base.base;
1008 saveoff = base->key;
1010 if (base->obj_id != ip->obj_id)
1011 panic("readdir: bad record at %p", cursor.node);
1013 r = vop_write_dirent(
1014 &error, uio, rec->entry.obj_id,
1015 hammer_get_dtype(rec->entry.base.base.obj_type),
1016 rec->entry.base.data_len,
1017 (void *)cursor.data);
1022 cookies[cookie_index] = base->key;
1024 if (cookie_index == ncookies)
1026 error = hammer_ip_next(&cursor);
1028 hammer_done_cursor(&cursor);
1032 *ap->a_eofflag = (error == ENOENT);
1033 uio->uio_offset = saveoff;
1034 if (error && cookie_index == 0) {
1035 if (error == ENOENT)
1038 kfree(cookies, M_TEMP);
1039 *ap->a_ncookies = 0;
1040 *ap->a_cookies = NULL;
1043 if (error == ENOENT)
1046 *ap->a_ncookies = cookie_index;
1047 *ap->a_cookies = cookies;
1054 * hammer_vop_readlink { vp, uio, cred }
1058 hammer_vop_readlink(struct vop_readlink_args *ap)
1060 struct hammer_cursor cursor;
1061 struct hammer_inode *ip;
1064 ip = VTOI(ap->a_vp);
1065 hammer_init_cursor_hmp(&cursor, &ip->cache[0], ip->hmp);
1068 * Key range (begin and end inclusive) to scan. Directory keys
1069 * directly translate to a 64 bit 'seek' position.
1071 cursor.key_beg.obj_id = ip->obj_id;
1072 cursor.key_beg.create_tid = 0;
1073 cursor.key_beg.delete_tid = 0;
1074 cursor.key_beg.rec_type = HAMMER_RECTYPE_FIX;
1075 cursor.key_beg.obj_type = 0;
1076 cursor.key_beg.key = HAMMER_FIXKEY_SYMLINK;
1077 cursor.asof = ip->obj_asof;
1078 cursor.flags |= HAMMER_CURSOR_ASOF;
1080 error = hammer_ip_lookup(&cursor, ip);
1082 error = hammer_ip_resolve_data(&cursor);
1084 error = uiomove((char *)cursor.data,
1085 cursor.record->generic.base.data_len,
1089 hammer_done_cursor(&cursor);
1094 * hammer_vop_nremove { nch, dvp, cred }
1098 hammer_vop_nremove(struct vop_nremove_args *ap)
1100 return(hammer_dounlink(ap->a_nch, ap->a_dvp, ap->a_cred, 0));
1104 * hammer_vop_nrename { fnch, tnch, fdvp, tdvp, cred }
1108 hammer_vop_nrename(struct vop_nrename_args *ap)
1110 struct hammer_transaction trans;
1111 struct namecache *fncp;
1112 struct namecache *tncp;
1113 struct hammer_inode *fdip;
1114 struct hammer_inode *tdip;
1115 struct hammer_inode *ip;
1116 struct hammer_cursor cursor;
1117 union hammer_record_ondisk *rec;
1121 fdip = VTOI(ap->a_fdvp);
1122 tdip = VTOI(ap->a_tdvp);
1123 fncp = ap->a_fnch->ncp;
1124 tncp = ap->a_tnch->ncp;
1125 ip = VTOI(fncp->nc_vp);
1126 KKASSERT(ip != NULL);
1128 if (fdip->flags & HAMMER_INODE_RO)
1130 if (tdip->flags & HAMMER_INODE_RO)
1132 if (ip->flags & HAMMER_INODE_RO)
1135 hammer_start_transaction(&trans, fdip->hmp);
1138 * Remove tncp from the target directory and then link ip as
1139 * tncp. XXX pass trans to dounlink
1141 error = hammer_dounlink(ap->a_tnch, ap->a_tdvp, ap->a_cred, 0);
1142 if (error == 0 || error == ENOENT)
1143 error = hammer_ip_add_directory(&trans, tdip, tncp, ip);
1145 goto failed; /* XXX */
1148 * Locate the record in the originating directory and remove it.
1150 * Calculate the namekey and setup the key range for the scan. This
1151 * works kinda like a chained hash table where the lower 32 bits
1152 * of the namekey synthesize the chain.
1154 * The key range is inclusive of both key_beg and key_end.
1156 namekey = hammer_directory_namekey(fncp->nc_name, fncp->nc_nlen);
1158 hammer_init_cursor_hmp(&cursor, &fdip->cache[0], fdip->hmp);
1159 cursor.key_beg.obj_id = fdip->obj_id;
1160 cursor.key_beg.key = namekey;
1161 cursor.key_beg.create_tid = 0;
1162 cursor.key_beg.delete_tid = 0;
1163 cursor.key_beg.rec_type = HAMMER_RECTYPE_DIRENTRY;
1164 cursor.key_beg.obj_type = 0;
1166 cursor.key_end = cursor.key_beg;
1167 cursor.key_end.key |= 0xFFFFFFFFULL;
1168 cursor.asof = fdip->obj_asof;
1169 cursor.flags |= HAMMER_CURSOR_END_INCLUSIVE | HAMMER_CURSOR_ASOF;
1172 * Scan all matching records (the chain), locate the one matching
1173 * the requested path component.
1175 * The hammer_ip_*() functions merge in-memory records with on-disk
1176 * records for the purposes of the search.
1178 error = hammer_ip_first(&cursor, fdip);
1179 while (error == 0) {
1180 if (hammer_ip_resolve_data(&cursor) != 0)
1182 rec = cursor.record;
1183 if (fncp->nc_nlen == rec->entry.base.data_len &&
1184 bcmp(fncp->nc_name, cursor.data, fncp->nc_nlen) == 0) {
1187 error = hammer_ip_next(&cursor);
1191 * If all is ok we have to get the inode so we can adjust nlinks.
1193 * WARNING: hammer_ip_del_directory() may have to terminate the
1194 * cursor to avoid a recursion. It's ok to call hammer_done_cursor()
1198 error = hammer_ip_del_directory(&trans, &cursor, fdip, ip);
1199 hammer_done_cursor(&cursor);
1201 cache_rename(ap->a_fnch, ap->a_tnch);
1202 if (error == EDEADLK)
1206 hammer_commit_transaction(&trans);
1208 hammer_abort_transaction(&trans);
1214 * hammer_vop_nrmdir { nch, dvp, cred }
1218 hammer_vop_nrmdir(struct vop_nrmdir_args *ap)
1220 return(hammer_dounlink(ap->a_nch, ap->a_dvp, ap->a_cred, 0));
1224 * hammer_vop_setattr { vp, vap, cred }
1228 hammer_vop_setattr(struct vop_setattr_args *ap)
1230 struct hammer_transaction trans;
1231 struct hammer_cursor *spike = NULL;
1233 struct hammer_inode *ip;
1236 int64_t aligned_size;
1241 ip = ap->a_vp->v_data;
1244 if (ap->a_vp->v_mount->mnt_flag & MNT_RDONLY)
1246 if (ip->flags & HAMMER_INODE_RO)
1249 hammer_start_transaction(&trans, ip->hmp);
1252 if (vap->va_flags != VNOVAL) {
1253 flags = ip->ino_data.uflags;
1254 error = vop_helper_setattr_flags(&flags, vap->va_flags,
1255 hammer_to_unix_xid(&ip->ino_data.uid),
1258 if (ip->ino_data.uflags != flags) {
1259 ip->ino_data.uflags = flags;
1260 modflags |= HAMMER_INODE_DDIRTY;
1262 if (ip->ino_data.uflags & (IMMUTABLE | APPEND)) {
1269 if (ip->ino_data.uflags & (IMMUTABLE | APPEND)) {
1273 if (vap->va_uid != (uid_t)VNOVAL) {
1274 hammer_guid_to_uuid(&uuid, vap->va_uid);
1275 if (bcmp(&uuid, &ip->ino_data.uid, sizeof(uuid)) != 0) {
1276 ip->ino_data.uid = uuid;
1277 modflags |= HAMMER_INODE_DDIRTY;
1280 if (vap->va_gid != (uid_t)VNOVAL) {
1281 hammer_guid_to_uuid(&uuid, vap->va_gid);
1282 if (bcmp(&uuid, &ip->ino_data.gid, sizeof(uuid)) != 0) {
1283 ip->ino_data.gid = uuid;
1284 modflags |= HAMMER_INODE_DDIRTY;
1287 while (vap->va_size != VNOVAL && ip->ino_rec.ino_size != vap->va_size) {
1288 switch(ap->a_vp->v_type) {
1290 if (vap->va_size < ip->ino_rec.ino_size) {
1291 vtruncbuf(ap->a_vp, vap->va_size,
1293 } else if (vap->va_size > ip->ino_rec.ino_size) {
1294 vnode_pager_setsize(ap->a_vp, vap->va_size);
1296 aligned_size = (vap->va_size + HAMMER_BUFMASK) &
1297 ~(int64_t)HAMMER_BUFMASK;
1298 error = hammer_ip_delete_range(&trans, ip,
1300 0x7FFFFFFFFFFFFFFFLL,
1302 ip->ino_rec.ino_size = vap->va_size;
1303 modflags |= HAMMER_INODE_RDIRTY;
1306 error = hammer_ip_delete_range(&trans, ip,
1308 0x7FFFFFFFFFFFFFFFLL,
1310 ip->ino_rec.ino_size = vap->va_size;
1311 modflags |= HAMMER_INODE_RDIRTY;
1317 if (error == ENOSPC) {
1318 error = hammer_spike(&spike);
1322 KKASSERT(spike == NULL);
1325 if (vap->va_atime.tv_sec != VNOVAL) {
1326 ip->ino_rec.ino_atime =
1327 hammer_timespec_to_transid(&vap->va_atime);
1328 modflags |= HAMMER_INODE_ITIMES;
1330 if (vap->va_mtime.tv_sec != VNOVAL) {
1331 ip->ino_rec.ino_mtime =
1332 hammer_timespec_to_transid(&vap->va_mtime);
1333 modflags |= HAMMER_INODE_ITIMES;
1335 if (vap->va_mode != (mode_t)VNOVAL) {
1336 if (ip->ino_data.mode != vap->va_mode) {
1337 ip->ino_data.mode = vap->va_mode;
1338 modflags |= HAMMER_INODE_DDIRTY;
1343 hammer_abort_transaction(&trans);
1345 hammer_modify_inode(&trans, ip, modflags);
1346 hammer_commit_transaction(&trans);
1352 * hammer_vop_nsymlink { nch, dvp, vpp, cred, vap, target }
1356 hammer_vop_nsymlink(struct vop_nsymlink_args *ap)
1358 struct hammer_transaction trans;
1359 struct hammer_inode *dip;
1360 struct hammer_inode *nip;
1361 struct nchandle *nch;
1362 hammer_record_t record;
1366 ap->a_vap->va_type = VLNK;
1369 dip = VTOI(ap->a_dvp);
1371 if (dip->flags & HAMMER_INODE_RO)
1375 * Create a transaction to cover the operations we perform.
1377 hammer_start_transaction(&trans, dip->hmp);
1380 * Create a new filesystem object of the requested type. The
1381 * returned inode will be referenced but not locked.
1384 error = hammer_create_inode(&trans, ap->a_vap, ap->a_cred, dip, &nip);
1386 hammer_abort_transaction(&trans);
1392 * Add the new filesystem object to the directory. This will also
1393 * bump the inode's link count.
1395 error = hammer_ip_add_directory(&trans, dip, nch->ncp, nip);
1398 * Add a record representing the symlink. symlink stores the link
1399 * as pure data, not a string, and is no \0 terminated.
1402 record = hammer_alloc_mem_record(nip);
1403 bytes = strlen(ap->a_target);
1405 record->rec.generic.base.base.key = HAMMER_FIXKEY_SYMLINK;
1406 record->rec.generic.base.base.rec_type = HAMMER_RECTYPE_FIX;
1407 record->rec.generic.base.data_len = bytes;
1408 if (bytes <= sizeof(record->rec.generic.filler)) {
1409 record->data = (void *)record->rec.generic.filler;
1410 bcopy(ap->a_target, record->data, bytes);
1412 record->data = (void *)ap->a_target;
1413 /* will be reallocated by routine below */
1415 error = hammer_ip_add_record(&trans, record);
1422 hammer_rel_inode(nip, 0);
1423 hammer_abort_transaction(&trans);
1426 hammer_commit_transaction(&trans);
1427 error = hammer_get_vnode(nip, LK_EXCLUSIVE, ap->a_vpp);
1428 hammer_rel_inode(nip, 0);
1430 cache_setunresolved(ap->a_nch);
1431 cache_setvp(ap->a_nch, *ap->a_vpp);
1438 * hammer_vop_nwhiteout { nch, dvp, cred, flags }
1442 hammer_vop_nwhiteout(struct vop_nwhiteout_args *ap)
1444 return(hammer_dounlink(ap->a_nch, ap->a_dvp, ap->a_cred, ap->a_flags));
1448 * hammer_vop_strategy { vp, bio }
1450 * Strategy call, used for regular file read & write only. Note that the
1451 * bp may represent a cluster.
1453 * To simplify operation and allow better optimizations in the future,
1454 * this code does not make any assumptions with regards to buffer alignment
1459 hammer_vop_strategy(struct vop_strategy_args *ap)
1464 bp = ap->a_bio->bio_buf;
1468 error = hammer_vop_strategy_read(ap);
1471 error = hammer_vop_strategy_write(ap);
1477 bp->b_error = error;
1479 bp->b_flags |= B_ERROR;
1485 * Read from a regular file. Iterate the related records and fill in the
1486 * BIO/BUF. Gaps are zero-filled.
1488 * The support code in hammer_object.c should be used to deal with mixed
1489 * in-memory and on-disk records.
1495 hammer_vop_strategy_read(struct vop_strategy_args *ap)
1497 struct hammer_inode *ip = ap->a_vp->v_data;
1498 struct hammer_cursor cursor;
1499 hammer_record_ondisk_t rec;
1500 hammer_base_elm_t base;
1514 hammer_init_cursor_hmp(&cursor, &ip->cache[0], ip->hmp);
1517 * Key range (begin and end inclusive) to scan. Note that the key's
1518 * stored in the actual records represent BASE+LEN, not BASE. The
1519 * first record containing bio_offset will have a key > bio_offset.
1521 cursor.key_beg.obj_id = ip->obj_id;
1522 cursor.key_beg.create_tid = 0;
1523 cursor.key_beg.delete_tid = 0;
1524 cursor.key_beg.obj_type = 0;
1525 cursor.key_beg.key = bio->bio_offset + 1;
1526 cursor.asof = ip->obj_asof;
1527 cursor.flags |= HAMMER_CURSOR_ASOF;
1529 cursor.key_end = cursor.key_beg;
1530 if (ip->ino_rec.base.base.obj_type == HAMMER_OBJTYPE_DBFILE) {
1531 cursor.key_beg.rec_type = HAMMER_RECTYPE_DB;
1532 cursor.key_end.rec_type = HAMMER_RECTYPE_DB;
1533 cursor.key_end.key = 0x7FFFFFFFFFFFFFFFLL;
1535 ran_end = bio->bio_offset + bp->b_bufsize;
1536 cursor.key_beg.rec_type = HAMMER_RECTYPE_DATA;
1537 cursor.key_end.rec_type = HAMMER_RECTYPE_DATA;
1538 tmp64 = ran_end + MAXPHYS + 1; /* work-around GCC-4 bug */
1539 if (tmp64 < ran_end)
1540 cursor.key_end.key = 0x7FFFFFFFFFFFFFFFLL;
1542 cursor.key_end.key = ran_end + MAXPHYS + 1;
1544 cursor.flags |= HAMMER_CURSOR_END_INCLUSIVE;
1546 error = hammer_ip_first(&cursor, ip);
1549 while (error == 0) {
1550 error = hammer_ip_resolve_data(&cursor);
1553 rec = cursor.record;
1554 base = &rec->base.base;
1556 rec_offset = base->key - rec->data.base.data_len;
1559 * Calculate the gap, if any, and zero-fill it.
1561 n = (int)(rec_offset - (bio->bio_offset + boff));
1563 if (n > bp->b_bufsize - boff)
1564 n = bp->b_bufsize - boff;
1565 kprintf("zfill %d bytes\n", n);
1566 bzero((char *)bp->b_data + boff, n);
1572 * Calculate the data offset in the record and the number
1573 * of bytes we can copy.
1575 * Note there is a degenerate case here where boff may
1576 * already be at bp->b_bufsize.
1579 n = rec->data.base.data_len - roff;
1581 if (n > bp->b_bufsize - boff)
1582 n = bp->b_bufsize - boff;
1583 bcopy((char *)cursor.data + roff, (char *)bp->b_data + boff, n);
1585 if (boff == bp->b_bufsize)
1587 error = hammer_ip_next(&cursor);
1589 hammer_done_cursor(&cursor);
1592 * There may have been a gap after the last record
1594 if (error == ENOENT)
1596 if (error == 0 && boff != bp->b_bufsize) {
1597 KKASSERT(boff < bp->b_bufsize);
1598 bzero((char *)bp->b_data + boff, bp->b_bufsize - boff);
1599 /* boff = bp->b_bufsize; */
1606 * Write to a regular file. Iterate the related records and mark for
1607 * deletion. If existing edge records (left and right side) overlap our
1608 * write they have to be marked deleted and new records created, usually
1609 * referencing a portion of the original data. Then add a record to
1610 * represent the buffer.
1612 * The support code in hammer_object.c should be used to deal with mixed
1613 * in-memory and on-disk records.
1617 hammer_vop_strategy_write(struct vop_strategy_args *ap)
1619 struct hammer_transaction trans;
1620 struct hammer_cursor *spike = NULL;
1628 ip = ap->a_vp->v_data;
1630 if (ip->flags & HAMMER_INODE_RO)
1633 hammer_start_transaction(&trans, ip->hmp);
1637 * Delete any records overlapping our range. This function will
1638 * (eventually) properly truncate partial overlaps.
1640 if (ip->ino_rec.base.base.obj_type == HAMMER_OBJTYPE_DBFILE) {
1641 error = hammer_ip_delete_range(&trans, ip, bio->bio_offset,
1642 bio->bio_offset, &spike);
1644 error = hammer_ip_delete_range(&trans, ip, bio->bio_offset,
1651 * Add a single record to cover the write
1654 error = hammer_ip_sync_data(&trans, ip, bio->bio_offset,
1655 bp->b_data, bp->b_bufsize,
1660 * If we ran out of space the spike structure will be filled in
1661 * and we must call hammer_spike with it, then retry.
1663 if (error == ENOSPC) {
1664 error = hammer_spike(&spike);
1668 KKASSERT(spike == NULL);
1671 * If an error occured abort the transaction
1674 /* XXX undo deletion */
1675 hammer_abort_transaction(&trans);
1676 bp->b_resid = bp->b_bufsize;
1678 hammer_commit_transaction(&trans);
1685 * dounlink - disconnect a directory entry
1687 * XXX whiteout support not really in yet
1690 hammer_dounlink(struct nchandle *nch, struct vnode *dvp, struct ucred *cred,
1693 struct hammer_transaction trans;
1694 struct namecache *ncp;
1697 hammer_record_ondisk_t rec;
1698 struct hammer_cursor cursor;
1703 * Calculate the namekey and setup the key range for the scan. This
1704 * works kinda like a chained hash table where the lower 32 bits
1705 * of the namekey synthesize the chain.
1707 * The key range is inclusive of both key_beg and key_end.
1712 if (dip->flags & HAMMER_INODE_RO)
1715 hammer_start_transaction(&trans, dip->hmp);
1717 namekey = hammer_directory_namekey(ncp->nc_name, ncp->nc_nlen);
1719 hammer_init_cursor_hmp(&cursor, &dip->cache[0], dip->hmp);
1720 cursor.key_beg.obj_id = dip->obj_id;
1721 cursor.key_beg.key = namekey;
1722 cursor.key_beg.create_tid = 0;
1723 cursor.key_beg.delete_tid = 0;
1724 cursor.key_beg.rec_type = HAMMER_RECTYPE_DIRENTRY;
1725 cursor.key_beg.obj_type = 0;
1727 cursor.key_end = cursor.key_beg;
1728 cursor.key_end.key |= 0xFFFFFFFFULL;
1729 cursor.asof = dip->obj_asof;
1730 cursor.flags |= HAMMER_CURSOR_END_INCLUSIVE | HAMMER_CURSOR_ASOF;
1733 * Scan all matching records (the chain), locate the one matching
1734 * the requested path component. info->last_error contains the
1735 * error code on search termination and could be 0, ENOENT, or
1738 * The hammer_ip_*() functions merge in-memory records with on-disk
1739 * records for the purposes of the search.
1741 error = hammer_ip_first(&cursor, dip);
1742 while (error == 0) {
1743 error = hammer_ip_resolve_data(&cursor);
1746 rec = cursor.record;
1747 if (ncp->nc_nlen == rec->entry.base.data_len &&
1748 bcmp(ncp->nc_name, cursor.data, ncp->nc_nlen) == 0) {
1751 error = hammer_ip_next(&cursor);
1755 * If all is ok we have to get the inode so we can adjust nlinks.
1757 * If the target is a directory, it must be empty.
1760 ip = hammer_get_inode(dip->hmp, &dip->cache[1],
1762 dip->hmp->asof, 0, &error);
1763 KKASSERT(error != ENOENT);
1764 if (error == 0 && ip->ino_rec.base.base.obj_type ==
1765 HAMMER_OBJTYPE_DIRECTORY) {
1766 error = hammer_ip_check_directory_empty(&trans, ip);
1769 * WARNING: hammer_ip_del_directory() may have to terminate
1770 * the cursor to avoid a lock recursion. It's ok to call
1771 * hammer_done_cursor() twice.
1774 error = hammer_ip_del_directory(&trans, &cursor, dip, ip);
1776 cache_setunresolved(nch);
1777 cache_setvp(nch, NULL);
1780 cache_inval_vp(ip->vp, CINV_DESTROY);
1782 hammer_rel_inode(ip, 0);
1784 hammer_done_cursor(&cursor);
1785 if (error == EDEADLK)
1789 hammer_commit_transaction(&trans);
1791 hammer_abort_transaction(&trans);
1795 /************************************************************************
1796 * FIFO AND SPECFS OPS *
1797 ************************************************************************
1802 hammer_vop_fifoclose (struct vop_close_args *ap)
1804 /* XXX update itimes */
1805 return (VOCALL(&fifo_vnode_vops, &ap->a_head));
1809 hammer_vop_fiforead (struct vop_read_args *ap)
1813 error = VOCALL(&fifo_vnode_vops, &ap->a_head);
1814 /* XXX update access time */
1819 hammer_vop_fifowrite (struct vop_write_args *ap)
1823 error = VOCALL(&fifo_vnode_vops, &ap->a_head);
1824 /* XXX update access time */
1829 hammer_vop_specclose (struct vop_close_args *ap)
1831 /* XXX update itimes */
1832 return (VOCALL(&spec_vnode_vops, &ap->a_head));
1836 hammer_vop_specread (struct vop_read_args *ap)
1838 /* XXX update access time */
1839 return (VOCALL(&spec_vnode_vops, &ap->a_head));
1843 hammer_vop_specwrite (struct vop_write_args *ap)
1845 /* XXX update last change time */
1846 return (VOCALL(&spec_vnode_vops, &ap->a_head));