2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 2022 Tomohiro Kusumi <tkusumi@netbsd.org>
5 * Copyright (c) 2011-2022 The DragonFly Project. All rights reserved.
7 * This code is derived from software contributed to The DragonFly Project
8 * by Matthew Dillon <dillon@dragonflybsd.org>
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
20 * 3. Neither the name of The DragonFly Project nor the names of its
21 * contributors may be used to endorse or promote products derived
22 * from this software without specific, prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
27 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
28 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
29 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
30 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
31 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
32 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
33 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
34 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * Kernel Filesystem interface
40 * NOTE! local ipdata pointers must be reloaded on any modifying operation
41 * to the inode as its underlying chain may have changed.
45 #include <sys/param.h>
46 #include <sys/systm.h>
47 #include <sys/kernel.h>
48 #include <sys/fcntl.h>
51 #include <sys/mount.h>
52 #include <sys/vnode.h>
53 #include <sys/mountctl.h>
54 #include <sys/dirent.h>
56 #include <sys/objcache.h>
57 #include <sys/event.h>
59 #include <vfs/fifofs/fifo.h>
65 static int hammer2_read_file(hammer2_inode_t *ip, struct uio *uio,
68 static int hammer2_write_file(hammer2_inode_t *ip, struct uio *uio,
69 int ioflag, int seqcount);
70 static void hammer2_extend_file(hammer2_inode_t *ip, hammer2_key_t nsize);
71 static void hammer2_truncate_file(hammer2_inode_t *ip, hammer2_key_t nsize);
74 * Last reference to a vnode is going away but it is still cached.
78 hammer2_vop_inactive(struct vop_inactive_args *ap)
96 * Aquire the inode lock to interlock against vp updates via
97 * the inode path and file deletions and such (which can be
98 * namespace-only operations that might not hold the vnode).
100 hammer2_inode_lock(ip, 0);
101 if (ip->flags & HAMMER2_INODE_ISUNLINKED) {
106 * If the inode has been unlinked we can throw away all
107 * buffers (dirty or not) and clean the file out.
109 * Because vrecycle() calls are not guaranteed, try to
110 * dispose of the inode as much as possible right here.
112 nblksize = hammer2_calc_logical(ip, 0, &lbase, NULL);
113 nvtruncbuf(vp, 0, nblksize, 0, 0);
116 * Delete the file on-media.
118 if ((ip->flags & HAMMER2_INODE_DELETING) == 0) {
119 atomic_set_int(&ip->flags, HAMMER2_INODE_DELETING);
120 hammer2_inode_delayed_sideq(ip);
122 hammer2_inode_unlock(ip);
125 * Recycle immediately if possible
129 hammer2_inode_unlock(ip);
137 * Reclaim a vnode so that it can be reused; after the inode is
138 * disassociated, the filesystem must manage it alone.
142 hammer2_vop_reclaim(struct vop_reclaim_args *ap)
153 * NOTE! We do not attempt to flush chains here, flushing is
154 * really fragile and could also deadlock.
159 * The inode lock is required to disconnect it.
161 hammer2_inode_lock(ip, 0);
166 * Delete the file on-media. This should have been handled by the
167 * inactivation. The operation is likely still queued on the inode
168 * though so only complain if the stars don't align.
170 if ((ip->flags & (HAMMER2_INODE_ISUNLINKED | HAMMER2_INODE_DELETING)) ==
171 HAMMER2_INODE_ISUNLINKED)
174 atomic_set_int(&ip->flags, HAMMER2_INODE_DELETING);
175 hammer2_inode_delayed_sideq(ip);
176 kprintf("hammer2: vp=%p ip=%p unlinked but not disposed\n",
179 hammer2_inode_unlock(ip);
182 * Modified inodes will already be on SIDEQ or SYNCQ, no further
185 * We cannot safely synchronize the inode from inside the reclaim
186 * due to potentially deep locks held as-of when the reclaim occurs.
187 * Interactions and potential deadlocks abound. We also can't do it
188 * here without desynchronizing from the related directory entrie(s).
190 hammer2_inode_drop(ip); /* vp ref */
193 * XXX handle background sync when ip dirty, kernel will no longer
194 * notify us regarding this inode because there is no longer a
195 * vnode attached to it.
202 hammer2_reclaim(struct m_vnode *vp)
204 struct vop_reclaim_args ap = {
208 return hammer2_vop_reclaim(&ap);
212 * Currently this function synchronizes the front-end inode state to the
213 * backend chain topology, then flushes the inode's chain and sub-topology
214 * to backend media. This function does not flush the root topology down to
219 hammer2_vop_fsync(struct vop_fsync_args *ap)
231 hammer2_trans_init(ip->pmp, 0);
234 * Flush dirty buffers in the file's logical buffer cache.
235 * It is best to wait for the strategy code to commit the
236 * buffers to the device's backing buffer cache before
237 * then trying to flush the inode.
239 * This should be quick, but certain inode modifications cached
240 * entirely in the hammer2_inode structure may not trigger a
241 * buffer read until the flush so the fsync can wind up also
242 * doing scattered reads.
244 vfsync(vp, ap->a_waitfor, 1, NULL, NULL);
245 bio_track_wait(&vp->v_track_write, 0, 0);
248 * Flush any inode changes
250 hammer2_inode_lock(ip, 0);
251 if (ip->flags & (HAMMER2_INODE_RESIZED|HAMMER2_INODE_MODIFIED))
252 error1 = hammer2_inode_chain_sync(ip);
255 * Flush dirty chains related to the inode.
257 * NOTE! We are not in a flush transaction. The inode remains on
258 * the sideq so the filesystem syncer can synchronize it to
261 error2 = hammer2_inode_chain_flush(ip, HAMMER2_XOP_INODE_STOP);
266 * We may be able to clear the vnode dirty flag.
268 if ((ip->flags & (HAMMER2_INODE_MODIFIED |
269 HAMMER2_INODE_RESIZED |
270 HAMMER2_INODE_DIRTYDATA)) == 0 &&
271 RB_EMPTY(&vp->v_rbdirty_tree) &&
272 !bio_track_active(&vp->v_track_write)) {
275 hammer2_inode_unlock(ip);
276 hammer2_trans_done(ip->pmp, 0);
284 * No lock needed, just handle ip->update
288 hammer2_vop_access(struct vop_access_args *ap)
291 hammer2_inode_t *ip = VTOI(ap->a_vp);
300 update = spin_access_start(&ip->cluster_spin);
302 /*hammer2_inode_lock(ip, HAMMER2_RESOLVE_SHARED);*/
303 uid = hammer2_to_unix_xid(&ip->meta.uid);
304 gid = hammer2_to_unix_xid(&ip->meta.gid);
305 mode = ip->meta.mode;
306 uflags = ip->meta.uflags;
307 /*hammer2_inode_unlock(ip);*/
309 if (__predict_false(spin_access_end(&ip->cluster_spin, update)))
312 error = vop_helper_access(ap, uid, gid, mode, uflags);
321 hammer2_vop_getattr(struct vop_getattr_args *ap)
337 update = spin_access_start(&ip->cluster_spin);
339 vap->va_fsid = pmp->mp->mnt_stat.f_fsid.val[0];
340 vap->va_fileid = ip->meta.inum;
341 vap->va_mode = ip->meta.mode;
342 vap->va_nlink = ip->meta.nlinks;
343 vap->va_uid = hammer2_to_unix_xid(&ip->meta.uid);
344 vap->va_gid = hammer2_to_unix_xid(&ip->meta.gid);
347 vap->va_size = ip->meta.size; /* protected by shared lock */
348 vap->va_blocksize = HAMMER2_PBUFSIZE;
349 vap->va_flags = ip->meta.uflags;
350 hammer2_time_to_timespec(ip->meta.ctime, &vap->va_ctime);
351 hammer2_time_to_timespec(ip->meta.mtime, &vap->va_mtime);
352 hammer2_time_to_timespec(ip->meta.mtime, &vap->va_atime);
355 if (ip->meta.type == HAMMER2_OBJTYPE_DIRECTORY) {
357 * Can't really calculate directory use sans the files under
358 * it, just assume one block for now.
360 vap->va_bytes += HAMMER2_INODE_BYTES;
362 vap->va_bytes = hammer2_inode_data_count(ip);
364 vap->va_type = hammer2_get_vtype(ip->meta.type);
366 vap->va_uid_uuid = ip->meta.uid;
367 vap->va_gid_uuid = ip->meta.gid;
368 vap->va_vaflags = VA_UID_UUID_VALID | VA_GID_UUID_VALID |
371 if (__predict_false(spin_access_end(&ip->cluster_spin, update)))
381 hammer2_vop_getattr_lite(struct vop_getattr_lite_args *ap)
387 struct vattr_lite *lvap;
397 update = spin_access_start(&ip->cluster_spin);
400 vap->va_fsid = pmp->mp->mnt_stat.f_fsid.val[0];
401 vap->va_fileid = ip->meta.inum;
403 lvap->va_mode = ip->meta.mode;
404 lvap->va_nlink = ip->meta.nlinks;
405 lvap->va_uid = hammer2_to_unix_xid(&ip->meta.uid);
406 lvap->va_gid = hammer2_to_unix_xid(&ip->meta.gid);
411 lvap->va_size = ip->meta.size;
413 vap->va_blocksize = HAMMER2_PBUFSIZE;
415 lvap->va_flags = ip->meta.uflags;
416 lvap->va_type = hammer2_get_vtype(ip->meta.type);
419 vap->va_uid_uuid = ip->meta.uid;
420 vap->va_gid_uuid = ip->meta.gid;
421 vap->va_vaflags = VA_UID_UUID_VALID | VA_GID_UUID_VALID |
425 if (__predict_false(spin_access_end(&ip->cluster_spin, update)))
435 hammer2_vop_setattr(struct vop_setattr_args *ap)
447 hammer2_update_time(&ctime);
455 * Normally disallow setattr if there is no space, unless we
456 * are in emergency mode (might be needed to chflags -R noschg
457 * files prior to removal).
459 if ((ip->pmp->flags & HAMMER2_PMPF_EMERG) == 0 &&
460 hammer2_vfs_enospace(ip, 0, ap->a_cred) > 1) {
464 hammer2_trans_init(ip->pmp, 0);
465 hammer2_inode_lock(ip, 0);
468 if (vap->va_flags != VNOVAL) {
471 flags = ip->meta.uflags;
472 error = vop_helper_setattr_flags(&flags, vap->va_flags,
473 hammer2_to_unix_xid(&ip->meta.uid),
476 if (ip->meta.uflags != flags) {
477 hammer2_inode_modify(ip);
478 hammer2_spin_lock_update(&ip->cluster_spin);
479 ip->meta.uflags = flags;
480 ip->meta.ctime = ctime;
481 hammer2_spin_unlock_update(&ip->cluster_spin);
482 kflags |= NOTE_ATTRIB;
484 if (ip->meta.uflags & (IMMUTABLE | APPEND)) {
491 if (ip->meta.uflags & (IMMUTABLE | APPEND)) {
495 if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) {
496 mode_t cur_mode = ip->meta.mode;
497 uid_t cur_uid = hammer2_to_unix_xid(&ip->meta.uid);
498 gid_t cur_gid = hammer2_to_unix_xid(&ip->meta.gid);
502 error = vop_helper_chown(ap->a_vp, vap->va_uid, vap->va_gid,
504 &cur_uid, &cur_gid, &cur_mode);
506 hammer2_guid_to_uuid(&uuid_uid, cur_uid);
507 hammer2_guid_to_uuid(&uuid_gid, cur_gid);
508 if (bcmp(&uuid_uid, &ip->meta.uid, sizeof(uuid_uid)) ||
509 bcmp(&uuid_gid, &ip->meta.gid, sizeof(uuid_gid)) ||
510 ip->meta.mode != cur_mode
512 hammer2_inode_modify(ip);
513 hammer2_spin_lock_update(&ip->cluster_spin);
514 ip->meta.uid = uuid_uid;
515 ip->meta.gid = uuid_gid;
516 ip->meta.mode = cur_mode;
517 ip->meta.ctime = ctime;
518 hammer2_spin_unlock_update(&ip->cluster_spin);
520 kflags |= NOTE_ATTRIB;
527 if (vap->va_size != VNOVAL && ip->meta.size != vap->va_size) {
530 if (vap->va_size == ip->meta.size)
532 if (vap->va_size < ip->meta.size) {
533 hammer2_mtx_ex(&ip->truncate_lock);
534 hammer2_truncate_file(ip, vap->va_size);
535 hammer2_mtx_unlock(&ip->truncate_lock);
536 kflags |= NOTE_WRITE;
538 hammer2_extend_file(ip, vap->va_size);
539 kflags |= NOTE_WRITE | NOTE_EXTEND;
541 hammer2_inode_modify(ip);
542 ip->meta.mtime = ctime;
543 vclrflags(vp, VLASTWRITETS);
551 /* atime not supported */
552 if (vap->va_atime.tv_sec != VNOVAL) {
553 hammer2_inode_modify(ip);
554 ip->meta.atime = hammer2_timespec_to_time(&vap->va_atime);
555 kflags |= NOTE_ATTRIB;
558 if (vap->va_mode != (mode_t)VNOVAL) {
559 mode_t cur_mode = ip->meta.mode;
560 uid_t cur_uid = hammer2_to_unix_xid(&ip->meta.uid);
561 gid_t cur_gid = hammer2_to_unix_xid(&ip->meta.gid);
563 error = vop_helper_chmod(ap->a_vp, vap->va_mode, ap->a_cred,
564 cur_uid, cur_gid, &cur_mode);
566 hammer2_inode_modify(ip);
567 hammer2_spin_lock_update(&ip->cluster_spin);
568 ip->meta.mode = cur_mode;
569 ip->meta.ctime = ctime;
570 hammer2_spin_unlock_update(&ip->cluster_spin);
571 kflags |= NOTE_ATTRIB;
575 if (vap->va_mtime.tv_sec != VNOVAL) {
576 hammer2_inode_modify(ip);
577 ip->meta.mtime = hammer2_timespec_to_time(&vap->va_mtime);
578 kflags |= NOTE_ATTRIB;
579 vclrflags(vp, VLASTWRITETS);
584 * If a truncation occurred we must call chain_sync() now in order
585 * to trim the related data chains, otherwise a later expansion can
588 * If an extend occured that changed the DIRECTDATA state, we must
589 * call inode_chain_sync now in order to prepare the inode's indirect
592 * WARNING! This means we are making an adjustment to the inode's
593 * chain outside of sync/fsync, and not just to inode->meta, which
594 * may result in some consistency issues if a crash were to occur
595 * at just the wrong time.
597 if (ip->flags & HAMMER2_INODE_RESIZED)
598 hammer2_inode_chain_sync(ip);
603 hammer2_inode_unlock(ip);
604 hammer2_trans_done(ip->pmp, HAMMER2_TRANS_SIDEQ);
605 hammer2_knote(ip->vp, kflags);
614 hammer2_vop_readdir(struct vop_readdir_args *ap)
617 hammer2_xop_readdir_t *xop;
618 hammer2_blockref_t bref;
633 saveoff = uio->uio_offset;
638 * Setup cookies directory entry cookies if requested
640 if (ap->a_ncookies) {
641 ncookies = uio->uio_resid / 16 + 1;
644 cookies = kmalloc(ncookies * sizeof(off_t), M_TEMP, M_WAITOK);
651 hammer2_inode_lock(ip, HAMMER2_RESOLVE_SHARED);
654 * Handle artificial entries. To ensure that only positive 64 bit
655 * quantities are returned to userland we always strip off bit 63.
656 * The hash code is designed such that codes 0x0000-0x7FFF are not
657 * used, allowing us to use these codes for articial entries.
659 * Entry 0 is used for '.' and entry 1 is used for '..'. Do not
660 * allow '..' to cross the mount point into (e.g.) the super-root.
663 inum = ip->meta.inum & HAMMER2_DIRHASH_USERMSK;
664 r = vop_write_dirent(&error, uio, inum, DT_DIR, 1, ".");
668 cookies[cookie_index] = saveoff;
671 if (cookie_index == ncookies)
676 inum = ip->meta.inum & HAMMER2_DIRHASH_USERMSK;
677 if (ip != ip->pmp->iroot)
678 inum = ip->meta.iparent & HAMMER2_DIRHASH_USERMSK;
679 r = vop_write_dirent(&error, uio, inum, DT_DIR, 2, "..");
683 cookies[cookie_index] = saveoff;
686 if (cookie_index == ncookies)
690 lkey = saveoff | HAMMER2_DIRHASH_VISIBLE;
691 if (hammer2_debug & 0x0020)
692 kprintf("readdir: lkey %016jx\n", lkey);
696 xop = hammer2_xop_alloc(ip, 0);
698 hammer2_xop_start(&xop->head, &hammer2_readdir_desc);
701 const hammer2_inode_data_t *ripdata;
705 error = hammer2_xop_collect(&xop->head, 0);
706 error = hammer2_error_to_errno(error);
710 if (cookie_index == ncookies)
712 if (hammer2_debug & 0x0020)
713 kprintf("cluster chain %p %p\n",
714 xop->head.cluster.focus,
715 (xop->head.cluster.focus ?
716 xop->head.cluster.focus->data : (void *)-1));
717 hammer2_cluster_bref(&xop->head.cluster, &bref);
719 if (bref.type == HAMMER2_BREF_TYPE_INODE) {
720 ripdata = &hammer2_xop_gdata(&xop->head)->ipdata;
721 dtype = hammer2_get_dtype(ripdata->meta.type);
722 saveoff = bref.key & HAMMER2_DIRHASH_USERMSK;
723 r = vop_write_dirent(&error, uio,
725 HAMMER2_DIRHASH_USERMSK,
727 ripdata->meta.name_len,
729 hammer2_xop_pdata(&xop->head);
733 cookies[cookie_index] = saveoff;
735 } else if (bref.type == HAMMER2_BREF_TYPE_DIRENT) {
738 dtype = hammer2_get_dtype(bref.embed.dirent.type);
739 saveoff = bref.key & HAMMER2_DIRHASH_USERMSK;
740 namlen = bref.embed.dirent.namlen;
741 if (namlen <= sizeof(bref.check.buf)) {
742 dname = bref.check.buf;
744 dname = hammer2_xop_gdata(&xop->head)->buf;
746 r = vop_write_dirent(&error, uio,
747 bref.embed.dirent.inum, dtype,
749 if (namlen > sizeof(bref.check.buf))
750 hammer2_xop_pdata(&xop->head);
754 cookies[cookie_index] = saveoff;
757 /* XXX chain error */
758 kprintf("bad chain type readdir %d\n", bref.type);
761 hammer2_xop_retire(&xop->head, HAMMER2_XOPMASK_VOP);
762 if (error == ENOENT) {
765 saveoff = (hammer2_key_t)-1;
767 saveoff = bref.key & HAMMER2_DIRHASH_USERMSK;
770 hammer2_inode_unlock(ip);
772 *ap->a_eofflag = eofflag;
773 if (hammer2_debug & 0x0020)
774 kprintf("readdir: done at %016jx\n", saveoff);
775 uio->uio_offset = saveoff & ~HAMMER2_DIRHASH_VISIBLE;
776 if (error && cookie_index == 0) {
778 kfree(cookies, M_TEMP);
780 *ap->a_cookies = NULL;
784 *ap->a_ncookies = cookie_index;
785 *ap->a_cookies = cookies;
794 * hammer2_vop_readlink { vp, uio, cred }
798 hammer2_vop_readlink(struct vop_readlink_args *ap)
806 if (vp->v_type != VLNK)
810 error = hammer2_read_file(ip, ap->a_uio, 0);
818 hammer2_vop_read(struct vop_read_args *ap)
828 * Read operations supported on this vnode?
831 if (vp->v_type == VDIR)
833 if (vp->v_type != VREG)
843 seqcount = ap->a_ioflag >> IO_SEQSHIFT;
845 error = hammer2_read_file(ip, uio, seqcount);
853 hammer2_vop_write(struct vop_write_args *ap)
864 * Read operations supported on this vnode?
867 if (vp->v_type != VREG)
874 ioflag = ap->a_ioflag;
877 if (ip->pmp->ronly || (ip->pmp->flags & HAMMER2_PMPF_EMERG))
879 switch (hammer2_vfs_enospace(ip, uio->uio_resid, ap->a_cred)) {
883 ioflag |= IO_DIRECT; /* semi-synchronous */
889 seqcount = ioflag >> IO_SEQSHIFT;
892 * Check resource limit
895 if (uio->uio_resid > 0 && (td = uio->uio_td) != NULL && td->td_proc &&
896 uio->uio_offset + uio->uio_resid >
897 td->td_proc->p_rlimit[RLIMIT_FSIZE].rlim_cur) {
898 lwpsignal(td->td_proc, td->td_lwp, SIGXFSZ);
904 * The transaction interlocks against flush initiations
905 * (note: but will run concurrently with the actual flush).
907 * To avoid deadlocking against the VM system, we must flag any
908 * transaction related to the buffer cache or other direct
909 * VM page manipulation.
911 if (uio->uio_segflg == UIO_NOCOPY) {
912 assert(0); /* no UIO_NOCOPY in makefs */
913 hammer2_trans_init(ip->pmp, HAMMER2_TRANS_BUFCACHE);
915 hammer2_trans_init(ip->pmp, 0);
917 error = hammer2_write_file(ip, uio, ioflag, seqcount);
918 if (uio->uio_segflg == UIO_NOCOPY) {
919 assert(0); /* no UIO_NOCOPY in makefs */
920 hammer2_trans_done(ip->pmp, HAMMER2_TRANS_BUFCACHE |
921 HAMMER2_TRANS_SIDEQ);
923 hammer2_trans_done(ip->pmp, HAMMER2_TRANS_SIDEQ);
929 hammer2_write(struct m_vnode *vp, void *buf, size_t size, off_t offset)
933 assert(size <= HAMMER2_PBUFSIZE);
942 .uio_offset = offset,
944 .uio_segflg = UIO_USERSPACE,
948 struct vop_write_args ap = {
955 return hammer2_vop_write(&ap);
960 * Perform read operations on a file or symlink given an UNLOCKED
963 * The passed ip is not locked.
967 hammer2_read_file(hammer2_inode_t *ip, struct uio *uio, int seqcount)
978 * WARNING! Assumes that the kernel interlocks size changes at the
981 hammer2_mtx_sh(&ip->lock);
982 hammer2_mtx_sh(&ip->truncate_lock);
983 size = ip->meta.size;
984 hammer2_mtx_unlock(&ip->lock);
986 while (uio->uio_resid > 0 && uio->uio_offset < size) {
993 lblksize = hammer2_calc_logical(ip, uio->uio_offset,
998 error = cluster_readx(ip->vp, leof, lbase, lblksize,
999 B_NOTMETA | B_KVABIO,
1001 seqcount * MAXBSIZE,
1004 if (uio->uio_segflg == UIO_NOCOPY) {
1005 bp = getblk(ip->vp, lbase, lblksize,
1006 GETBLK_BHEAVY | GETBLK_KVABIO, 0);
1007 if (bp->b_flags & B_CACHE) {
1010 if (bp->b_xio.xio_npages != 16)
1011 kprintf("NPAGES BAD\n");
1012 for (i = 0; i < bp->b_xio.xio_npages; ++i) {
1014 m = bp->b_xio.xio_pages[i];
1015 if (m == NULL || m->valid == 0) {
1016 kprintf("bp %016jx %016jx pg %d inv",
1019 kprintf("m->object %p/%p", m->object, ip->vp->v_object);
1025 kprintf("b_flags %08x, b_error %d\n", bp->b_flags, bp->b_error);
1029 error = bread_kvabio(ip->vp, lbase, lblksize, &bp);
1036 loff = (int)(uio->uio_offset - lbase);
1037 n = lblksize - loff;
1038 if (n > uio->uio_resid)
1040 if (n > size - uio->uio_offset)
1041 n = (int)(size - uio->uio_offset);
1042 bp->b_flags |= B_AGE;
1043 uiomovebp(bp, (char *)bp->b_data + loff, n, uio);
1046 hammer2_mtx_unlock(&ip->truncate_lock);
1053 * Write to the file represented by the inode via the logical buffer cache.
1054 * The inode may represent a regular file or a symlink.
1056 * The inode must not be locked.
1060 hammer2_write_file(hammer2_inode_t *ip, struct uio *uio,
1061 int ioflag, int seqcount)
1063 hammer2_key_t old_eof;
1064 hammer2_key_t new_eof;
1073 * WARNING! Assumes that the kernel interlocks size changes at the
1076 hammer2_mtx_ex(&ip->lock);
1077 hammer2_mtx_sh(&ip->truncate_lock);
1078 if (ioflag & IO_APPEND)
1079 uio->uio_offset = ip->meta.size;
1080 old_eof = ip->meta.size;
1083 * Extend the file if necessary. If the write fails at some point
1084 * we will truncate it back down to cover as much as we were able
1087 * Doing this now makes it easier to calculate buffer sizes in
1094 if (uio->uio_offset + uio->uio_resid > old_eof) {
1095 new_eof = uio->uio_offset + uio->uio_resid;
1097 hammer2_extend_file(ip, new_eof);
1098 kflags |= NOTE_EXTEND;
1102 hammer2_mtx_unlock(&ip->lock);
1107 while (uio->uio_resid > 0) {
1108 hammer2_key_t lbase;
1116 * Don't allow the buffer build to blow out the buffer
1119 if ((ioflag & IO_RECURSE) == 0)
1120 bwillwrite(HAMMER2_PBUFSIZE);
1123 * This nominally tells us how much we can cluster and
1124 * what the logical buffer size needs to be. Currently
1125 * we don't try to cluster the write and just handle one
1128 lblksize = hammer2_calc_logical(ip, uio->uio_offset,
1130 loff = (int)(uio->uio_offset - lbase);
1132 KKASSERT(lblksize <= MAXBSIZE);
1135 * Calculate bytes to copy this transfer and whether the
1136 * copy completely covers the buffer or not.
1139 n = lblksize - loff;
1140 if (n > uio->uio_resid) {
1142 if (loff == lbase && uio->uio_offset + n == new_eof)
1150 if (lbase >= new_eof)
1152 trivial = 1; /* force trivial for makefs */
1157 if (uio->uio_segflg == UIO_NOCOPY) {
1158 assert(0); /* no UIO_NOCOPY in makefs */
1160 * Issuing a write with the same data backing the
1161 * buffer. Instantiate the buffer to collect the
1162 * backing vm pages, then read-in any missing bits.
1164 * This case is used by vop_stdputpages().
1166 bp = getblkx(ip->vp, lbase, lblksize,
1167 GETBLK_BHEAVY | GETBLK_KVABIO, 0);
1169 if ((bp->b_flags & B_CACHE) == 0) {
1171 error = bread_kvabio(ip->vp, lbase,
1175 } else if (trivial) {
1177 * Even though we are entirely overwriting the buffer
1178 * we may still have to zero it out to avoid a
1179 * mmap/write visibility issue.
1181 bp = getblkx(ip->vp, lbase, lblksize,
1182 GETBLK_BHEAVY | GETBLK_KVABIO, 0);
1184 if ((bp->b_flags & B_CACHE) == 0)
1188 assert(0); /* no partial write in makefs */
1190 * Partial overwrite, read in any missing bits then
1191 * replace the portion being written.
1193 * (The strategy code will detect zero-fill physical
1194 * blocks for this case).
1196 error = bread_kvabio(ip->vp, lbase, lblksize, &bp);
1207 * Ok, copy the data in
1210 error = uiomovebp(bp, (char *)bp->b_data + loff, n, uio);
1211 kflags |= NOTE_WRITE;
1219 * WARNING: Pageout daemon will issue UIO_NOCOPY writes
1220 * with IO_SYNC or IO_ASYNC set. These writes
1221 * must be handled as the pageout daemon expects.
1223 * NOTE! H2 relies on cluster_write() here because it
1224 * cannot preallocate disk blocks at the logical
1225 * level due to not knowing what the compression
1226 * size will be at this time.
1228 * We must use cluster_write() here and we depend
1229 * on the write-behind feature to flush buffers
1230 * appropriately. If we let the buffer daemons do
1231 * it the block allocations will be all over the
1235 bp->b_cmd = BUF_CMD_WRITE;
1239 bio.bio_offset = lbase;
1241 struct vop_strategy_args ap;
1245 error = hammer2_vop_strategy(&ap);
1249 } else if (ioflag & IO_SYNC) {
1252 } else if ((ioflag & IO_DIRECT) && endofblk) {
1255 } else if (ioflag & IO_ASYNC) {
1258 } else if (0 /*ip->vp->v_mount->mnt_flag & MNT_NOCLUSTERW*/) {
1265 bp->b_flags |= B_CLUSTEROK;
1266 cluster_write(bp, new_eof, lblksize, seqcount);
1268 bp->b_flags |= B_CLUSTEROK;
1276 * Cleanup. If we extended the file EOF but failed to write through
1277 * the entire write is a failure and we have to back-up.
1279 if (error && new_eof != old_eof) {
1280 hammer2_mtx_unlock(&ip->truncate_lock);
1281 hammer2_mtx_ex(&ip->lock); /* note lock order */
1282 hammer2_mtx_ex(&ip->truncate_lock); /* note lock order */
1283 hammer2_truncate_file(ip, old_eof);
1284 if (ip->flags & HAMMER2_INODE_MODIFIED)
1285 hammer2_inode_chain_sync(ip);
1286 hammer2_mtx_unlock(&ip->lock);
1287 } else if (modified) {
1288 struct m_vnode *vp = ip->vp;
1290 hammer2_mtx_ex(&ip->lock);
1291 hammer2_inode_modify(ip);
1292 if (uio->uio_segflg == UIO_NOCOPY) {
1293 assert(0); /* no UIO_NOCOPY in makefs */
1295 if (vp->v_flag & VLASTWRITETS) {
1297 (unsigned long)vp->v_lastwrite_ts.tv_sec *
1299 vp->v_lastwrite_ts.tv_nsec / 1000;
1303 hammer2_update_time(&ip->meta.mtime);
1304 vclrflags(vp, VLASTWRITETS);
1309 * REMOVED - handled by hammer2_extend_file(). Do not issue
1310 * a chain_sync() outside of a sync/fsync except for DIRECTDATA
1313 * Under normal conditions we only issue a chain_sync if
1314 * the inode's DIRECTDATA state changed.
1316 if (ip->flags & HAMMER2_INODE_RESIZED)
1317 hammer2_inode_chain_sync(ip);
1319 hammer2_mtx_unlock(&ip->lock);
1320 hammer2_knote(ip->vp, kflags);
1322 hammer2_trans_assert_strategy(ip->pmp);
1323 hammer2_mtx_unlock(&ip->truncate_lock);
1329 * Truncate the size of a file. The inode must be locked.
1331 * We must unconditionally set HAMMER2_INODE_RESIZED to properly
1332 * ensure that any on-media data beyond the new file EOF has been destroyed.
1334 * WARNING: nvtruncbuf() can only be safely called without the inode lock
1335 * held due to the way our write thread works. If the truncation
1336 * occurs in the middle of a buffer, nvtruncbuf() is responsible
1337 * for dirtying that buffer and zeroing out trailing bytes.
1339 * WARNING! Assumes that the kernel interlocks size changes at the
1342 * WARNING! Caller assumes responsibility for removing dead blocks
1343 * if INODE_RESIZED is set.
1347 hammer2_truncate_file(hammer2_inode_t *ip, hammer2_key_t nsize)
1349 hammer2_key_t lbase;
1352 hammer2_mtx_unlock(&ip->lock);
1354 nblksize = hammer2_calc_logical(ip, nsize, &lbase, NULL);
1355 nvtruncbuf(ip->vp, nsize,
1356 nblksize, (int)nsize & (nblksize - 1),
1359 hammer2_mtx_ex(&ip->lock);
1360 KKASSERT((ip->flags & HAMMER2_INODE_RESIZED) == 0);
1361 ip->osize = ip->meta.size;
1362 ip->meta.size = nsize;
1363 atomic_set_int(&ip->flags, HAMMER2_INODE_RESIZED);
1364 hammer2_inode_modify(ip);
1368 * Extend the size of a file. The inode must be locked.
1370 * Even though the file size is changing, we do not have to set the
1371 * INODE_RESIZED bit unless the file size crosses the EMBEDDED_BYTES
1372 * boundary. When this occurs a hammer2_inode_chain_sync() is required
1373 * to prepare the inode cluster's indirect block table, otherwise
1374 * async execution of the strategy code will implode on us.
1376 * WARNING! Assumes that the kernel interlocks size changes at the
1379 * WARNING! Caller assumes responsibility for transitioning out
1380 * of the inode DIRECTDATA mode if INODE_RESIZED is set.
1384 hammer2_extend_file(hammer2_inode_t *ip, hammer2_key_t nsize)
1386 hammer2_key_t lbase;
1387 hammer2_key_t osize;
1392 KKASSERT((ip->flags & HAMMER2_INODE_RESIZED) == 0);
1393 hammer2_inode_modify(ip);
1394 osize = ip->meta.size;
1396 ip->meta.size = nsize;
1399 * We must issue a chain_sync() when the DIRECTDATA state changes
1400 * to prevent confusion between the flush code and the in-memory
1401 * state. This is not perfect because we are doing it outside of
1402 * a sync/fsync operation, so it might not be fully synchronized
1403 * with the meta-data topology flush.
1405 * We must retain and re-dirty the buffer cache buffer containing
1406 * the direct data so it can be written to a real block. It should
1407 * not be possible for a bread error to occur since the original data
1408 * is extracted from the inode structure directly.
1410 if (osize <= HAMMER2_EMBEDDED_BYTES && nsize > HAMMER2_EMBEDDED_BYTES) {
1412 assert(0); /* no such transition in makefs */
1415 oblksize = hammer2_calc_logical(ip, 0, NULL, NULL);
1416 error = bread_kvabio(ip->vp, 0, oblksize, &bp);
1417 atomic_set_int(&ip->flags, HAMMER2_INODE_RESIZED);
1418 hammer2_inode_chain_sync(ip);
1426 atomic_set_int(&ip->flags, HAMMER2_INODE_RESIZED);
1427 hammer2_inode_chain_sync(ip);
1430 hammer2_mtx_unlock(&ip->lock);
1432 oblksize = hammer2_calc_logical(ip, osize, &lbase, NULL);
1433 nblksize = hammer2_calc_logical(ip, nsize, &lbase, NULL);
1439 hammer2_mtx_ex(&ip->lock);
1444 hammer2_vop_nresolve(struct vop_nresolve_args *ap)
1446 hammer2_xop_nresolve_t *xop;
1447 hammer2_inode_t *ip;
1448 hammer2_inode_t *dip;
1449 struct namecache *ncp;
1453 dip = VTOI(ap->a_dvp);
1454 xop = hammer2_xop_alloc(dip, 0);
1456 ncp = ap->a_nch->ncp;
1457 hammer2_xop_setname(&xop->head, ncp->nc_name, ncp->nc_nlen);
1460 * Note: In DragonFly the kernel handles '.' and '..'.
1462 hammer2_inode_lock(dip, HAMMER2_RESOLVE_SHARED);
1463 hammer2_xop_start(&xop->head, &hammer2_nresolve_desc);
1465 error = hammer2_xop_collect(&xop->head, 0);
1466 error = hammer2_error_to_errno(error);
1470 ip = hammer2_inode_get(dip->pmp, &xop->head, -1, -1);
1472 hammer2_inode_unlock(dip);
1475 * Acquire the related vnode
1477 * NOTE: For error processing, only ENOENT resolves the namecache
1478 * entry to NULL, otherwise we just return the error and
1479 * leave the namecache unresolved.
1481 * WARNING: inode structure is locked exclusively via inode_get
1482 * but chain was locked shared. inode_unlock()
1483 * will handle it properly.
1486 vp = hammer2_igetv(ip, &error); /* error set to UNIX error */
1489 cache_setvp(ap->a_nch, vp);
1491 } else if (error == ENOENT) {
1492 cache_setvp(ap->a_nch, NULL);
1494 hammer2_inode_unlock(ip);
1497 * The vp should not be released until after we've disposed
1498 * of our locks, because it might cause vop_inactive() to
1505 cache_setvp(ap->a_nch, NULL);
1507 hammer2_xop_retire(&xop->head, HAMMER2_XOPMASK_VOP);
1509 KASSERT(error || ap->a_nch->ncp->nc_vp != NULL,
1510 ("resolve error %d/%p ap %p\n",
1511 error, ap->a_nch->ncp->nc_vp, ap));
1518 hammer2_nresolve(struct m_vnode *dvp, struct m_vnode **vpp, char *name, int nlen)
1521 struct namecache nc = {
1525 struct nchandle nch = {
1528 struct vop_nresolve_args ap = {
1534 return hammer2_vop_nresolve(&ap);
1539 hammer2_vop_nlookupdotdot(struct vop_nlookupdotdot_args *ap)
1542 hammer2_inode_t *dip;
1546 dip = VTOI(ap->a_dvp);
1547 inum = dip->meta.iparent;
1551 error = hammer2_vfs_vget(ap->a_dvp->v_mount, NULL,
1558 return (EOPNOTSUPP);
1563 hammer2_vop_nmkdir(struct vop_nmkdir_args *ap)
1565 hammer2_inode_t *dip;
1566 hammer2_inode_t *nip;
1567 struct namecache *ncp;
1573 dip = VTOI(ap->a_dvp);
1574 if (dip->pmp->ronly || (dip->pmp->flags & HAMMER2_PMPF_EMERG))
1576 if (hammer2_vfs_enospace(dip, 0, ap->a_cred) > 1)
1579 ncp = ap->a_nch->ncp;
1580 name = ncp->nc_name;
1581 name_len = ncp->nc_nlen;
1583 hammer2_trans_init(dip->pmp, 0);
1585 inum = hammer2_trans_newinum(dip->pmp);
1588 * Create the actual inode as a hidden file in the iroot, then
1589 * create the directory entry. The creation of the actual inode
1590 * sets its nlinks to 1 which is the value we desire.
1592 * dip must be locked before nip to avoid deadlock.
1594 hammer2_inode_lock(dip, 0);
1595 nip = hammer2_inode_create_normal(dip, ap->a_vap, ap->a_cred,
1598 error = hammer2_error_to_errno(error);
1600 error = hammer2_dirent_create(dip, name, name_len,
1601 nip->meta.inum, nip->meta.type);
1602 /* returns UNIX error code */
1606 hammer2_inode_unlink_finisher(nip, NULL);
1607 hammer2_inode_unlock(nip);
1613 * inode_depend() must occur before the igetv() because
1614 * the igetv() can temporarily release the inode lock.
1616 hammer2_inode_depend(dip, nip); /* before igetv */
1617 *ap->a_vpp = hammer2_igetv(nip, &error);
1618 hammer2_inode_unlock(nip);
1622 * Update dip's mtime
1624 * We can use a shared inode lock and allow the meta.mtime update
1625 * SMP race. hammer2_inode_modify() is MPSAFE w/a shared lock.
1630 /*hammer2_inode_lock(dip, HAMMER2_RESOLVE_SHARED);*/
1631 hammer2_update_time(&mtime);
1632 hammer2_inode_modify(dip);
1633 dip->meta.mtime = mtime;
1634 /*hammer2_inode_unlock(dip);*/
1636 hammer2_inode_unlock(dip);
1638 hammer2_trans_done(dip->pmp, HAMMER2_TRANS_SIDEQ);
1641 cache_setunresolved(ap->a_nch);
1642 cache_setvp(ap->a_nch, *ap->a_vpp);
1643 hammer2_knote(ap->a_dvp, NOTE_WRITE | NOTE_LINK);
1649 hammer2_nmkdir(struct m_vnode *dvp, struct m_vnode **vpp, char *name, int nlen,
1652 struct namecache nc = {
1656 struct nchandle nch = {
1659 uid_t va_uid = VNOVAL; //getuid();
1660 uid_t va_gid = VNOVAL; //getgid();
1663 .va_mode = mode & ~S_IFMT,
1667 struct vop_nmkdir_args ap = {
1674 return hammer2_vop_nmkdir(&ap);
1679 hammer2_vop_open(struct vop_open_args *ap)
1682 return vop_stdopen(ap);
1684 return (EOPNOTSUPP);
1688 * hammer2_vop_advlock { vp, id, op, fl, flags }
1692 hammer2_vop_advlock(struct vop_advlock_args *ap)
1695 hammer2_inode_t *ip = VTOI(ap->a_vp);
1698 size = ip->meta.size;
1699 return (lf_advlock(ap, &ip->advlock, size));
1701 return (EOPNOTSUPP);
1706 hammer2_vop_close(struct vop_close_args *ap)
1709 return vop_stdclose(ap);
1711 return (EOPNOTSUPP);
1715 * hammer2_vop_nlink { nch, dvp, vp, cred }
1717 * Create a hardlink from (vp) to {dvp, nch}.
1721 hammer2_vop_nlink(struct vop_nlink_args *ap)
1723 hammer2_inode_t *tdip; /* target directory to create link in */
1724 hammer2_inode_t *ip; /* inode we are hardlinking to */
1725 struct namecache *ncp;
1731 /* We know it's the same in makefs */
1733 if (ap->a_dvp->v_mount != ap->a_vp->v_mount)
1737 tdip = VTOI(ap->a_dvp);
1738 if (tdip->pmp->ronly || (tdip->pmp->flags & HAMMER2_PMPF_EMERG))
1740 if (hammer2_vfs_enospace(tdip, 0, ap->a_cred) > 1)
1743 ncp = ap->a_nch->ncp;
1744 name = ncp->nc_name;
1745 name_len = ncp->nc_nlen;
1748 * ip represents the file being hardlinked. The file could be a
1749 * normal file or a hardlink target if it has already been hardlinked.
1750 * (with the new semantics, it will almost always be a hardlink
1753 * Bump nlinks and potentially also create or move the hardlink
1754 * target in the parent directory common to (ip) and (tdip). The
1755 * consolidation code can modify ip->cluster. The returned cluster
1758 ip = VTOI(ap->a_vp);
1759 KASSERT(ip->pmp, ("ip->pmp is NULL %p %p", ip, ip->pmp));
1760 hammer2_trans_init(ip->pmp, 0);
1763 * Target should be an indexed inode or there's no way we will ever
1764 * be able to find it!
1766 KKASSERT((ip->meta.name_key & HAMMER2_DIRHASH_VISIBLE) == 0);
1771 * Can return NULL and error == EXDEV if the common parent
1772 * crosses a directory with the xlink flag set.
1774 hammer2_inode_lock4(tdip, ip, NULL, NULL);
1776 hammer2_update_time(&cmtime);
1779 * Create the directory entry and bump nlinks.
1780 * Also update ip's ctime.
1783 error = hammer2_dirent_create(tdip, name, name_len,
1784 ip->meta.inum, ip->meta.type);
1785 hammer2_inode_modify(ip);
1787 ip->meta.ctime = cmtime;
1791 * Update dip's [cm]time
1793 hammer2_inode_modify(tdip);
1794 tdip->meta.mtime = cmtime;
1795 tdip->meta.ctime = cmtime;
1797 cache_setunresolved(ap->a_nch);
1798 cache_setvp(ap->a_nch, ap->a_vp);
1800 hammer2_inode_unlock(ip);
1801 hammer2_inode_unlock(tdip);
1803 hammer2_trans_done(ip->pmp, HAMMER2_TRANS_SIDEQ);
1804 hammer2_knote(ap->a_vp, NOTE_LINK);
1805 hammer2_knote(ap->a_dvp, NOTE_WRITE);
1811 hammer2_nlink(struct m_vnode *dvp, struct m_vnode *vp, char *name, int nlen)
1813 struct namecache nc = {
1817 struct nchandle nch = {
1820 struct vop_nlink_args ap = {
1826 return hammer2_vop_nlink(&ap);
1830 * hammer2_vop_ncreate { nch, dvp, vpp, cred, vap }
1832 * The operating system has already ensured that the directory entry
1833 * does not exist and done all appropriate namespace locking.
1837 hammer2_vop_ncreate(struct vop_ncreate_args *ap)
1839 hammer2_inode_t *dip;
1840 hammer2_inode_t *nip;
1841 struct namecache *ncp;
1847 dip = VTOI(ap->a_dvp);
1848 if (dip->pmp->ronly || (dip->pmp->flags & HAMMER2_PMPF_EMERG))
1850 if (hammer2_vfs_enospace(dip, 0, ap->a_cred) > 1)
1853 ncp = ap->a_nch->ncp;
1854 name = ncp->nc_name;
1855 name_len = ncp->nc_nlen;
1856 hammer2_trans_init(dip->pmp, 0);
1858 inum = hammer2_trans_newinum(dip->pmp);
1861 * Create the actual inode as a hidden file in the iroot, then
1862 * create the directory entry. The creation of the actual inode
1863 * sets its nlinks to 1 which is the value we desire.
1865 * dip must be locked before nip to avoid deadlock.
1867 hammer2_inode_lock(dip, 0);
1868 nip = hammer2_inode_create_normal(dip, ap->a_vap, ap->a_cred,
1872 error = hammer2_error_to_errno(error);
1874 error = hammer2_dirent_create(dip, name, name_len,
1875 nip->meta.inum, nip->meta.type);
1879 hammer2_inode_unlink_finisher(nip, NULL);
1880 hammer2_inode_unlock(nip);
1885 hammer2_inode_depend(dip, nip); /* before igetv */
1886 *ap->a_vpp = hammer2_igetv(nip, &error);
1887 hammer2_inode_unlock(nip);
1891 * Update dip's mtime
1896 /*hammer2_inode_lock(dip, HAMMER2_RESOLVE_SHARED);*/
1897 hammer2_update_time(&mtime);
1898 hammer2_inode_modify(dip);
1899 dip->meta.mtime = mtime;
1900 /*hammer2_inode_unlock(dip);*/
1902 hammer2_inode_unlock(dip);
1904 hammer2_trans_done(dip->pmp, HAMMER2_TRANS_SIDEQ);
1907 cache_setunresolved(ap->a_nch);
1908 cache_setvp(ap->a_nch, *ap->a_vpp);
1909 hammer2_knote(ap->a_dvp, NOTE_WRITE);
1915 hammer2_ncreate(struct m_vnode *dvp, struct m_vnode **vpp, char *name, int nlen,
1918 struct namecache nc = {
1922 struct nchandle nch = {
1925 uid_t va_uid = VNOVAL; //getuid();
1926 uid_t va_gid = VNOVAL; //getgid();
1929 .va_mode = mode & ~S_IFMT,
1933 struct vop_ncreate_args ap = {
1940 return hammer2_vop_ncreate(&ap);
1944 * Make a device node (typically a fifo)
1948 hammer2_vop_nmknod(struct vop_nmknod_args *ap)
1950 hammer2_inode_t *dip;
1951 hammer2_inode_t *nip;
1952 struct namecache *ncp;
1958 dip = VTOI(ap->a_dvp);
1959 if (dip->pmp->ronly || (dip->pmp->flags & HAMMER2_PMPF_EMERG))
1961 if (hammer2_vfs_enospace(dip, 0, ap->a_cred) > 1)
1964 ncp = ap->a_nch->ncp;
1965 name = ncp->nc_name;
1966 name_len = ncp->nc_nlen;
1967 hammer2_trans_init(dip->pmp, 0);
1970 * Create the device inode and then create the directory entry.
1972 * dip must be locked before nip to avoid deadlock.
1974 inum = hammer2_trans_newinum(dip->pmp);
1976 hammer2_inode_lock(dip, 0);
1977 nip = hammer2_inode_create_normal(dip, ap->a_vap, ap->a_cred,
1980 error = hammer2_dirent_create(dip, name, name_len,
1981 nip->meta.inum, nip->meta.type);
1985 hammer2_inode_unlink_finisher(nip, NULL);
1986 hammer2_inode_unlock(nip);
1991 hammer2_inode_depend(dip, nip); /* before igetv */
1992 *ap->a_vpp = hammer2_igetv(nip, &error);
1993 hammer2_inode_unlock(nip);
1997 * Update dip's mtime
2002 /*hammer2_inode_lock(dip, HAMMER2_RESOLVE_SHARED);*/
2003 hammer2_update_time(&mtime);
2004 hammer2_inode_modify(dip);
2005 dip->meta.mtime = mtime;
2006 /*hammer2_inode_unlock(dip);*/
2008 hammer2_inode_unlock(dip);
2010 hammer2_trans_done(dip->pmp, HAMMER2_TRANS_SIDEQ);
2013 cache_setunresolved(ap->a_nch);
2014 cache_setvp(ap->a_nch, *ap->a_vpp);
2015 hammer2_knote(ap->a_dvp, NOTE_WRITE);
2021 hammer2_nmknod(struct m_vnode *dvp, struct m_vnode **vpp, char *name, int nlen,
2022 int type, mode_t mode)
2024 struct namecache nc = {
2028 struct nchandle nch = {
2031 uid_t va_uid = VNOVAL; //getuid();
2032 uid_t va_gid = VNOVAL; //getgid();
2035 .va_mode = mode & ~S_IFMT,
2039 struct vop_nmknod_args ap = {
2046 return hammer2_vop_nmknod(&ap);
2050 * hammer2_vop_nsymlink { nch, dvp, vpp, cred, vap, target }
2054 hammer2_vop_nsymlink(struct vop_nsymlink_args *ap)
2056 hammer2_inode_t *dip;
2057 hammer2_inode_t *nip;
2058 struct namecache *ncp;
2064 dip = VTOI(ap->a_dvp);
2065 if (dip->pmp->ronly || (dip->pmp->flags & HAMMER2_PMPF_EMERG))
2067 if (hammer2_vfs_enospace(dip, 0, ap->a_cred) > 1)
2070 ncp = ap->a_nch->ncp;
2071 name = ncp->nc_name;
2072 name_len = ncp->nc_nlen;
2073 hammer2_trans_init(dip->pmp, 0);
2075 ap->a_vap->va_type = VLNK; /* enforce type */
2078 * Create the softlink as an inode and then create the directory
2081 * dip must be locked before nip to avoid deadlock.
2083 inum = hammer2_trans_newinum(dip->pmp);
2085 hammer2_inode_lock(dip, 0);
2086 nip = hammer2_inode_create_normal(dip, ap->a_vap, ap->a_cred,
2089 error = hammer2_dirent_create(dip, name, name_len,
2090 nip->meta.inum, nip->meta.type);
2094 hammer2_inode_unlink_finisher(nip, NULL);
2095 hammer2_inode_unlock(nip);
2099 hammer2_inode_unlock(dip);
2100 hammer2_trans_done(dip->pmp, HAMMER2_TRANS_SIDEQ);
2103 hammer2_inode_depend(dip, nip); /* before igetv */
2104 *ap->a_vpp = hammer2_igetv(nip, &error);
2107 * Build the softlink (~like file data) and finalize the namecache.
2114 bytes = strlen(ap->a_target);
2116 hammer2_inode_unlock(nip);
2117 bzero(&auio, sizeof(auio));
2118 bzero(&aiov, sizeof(aiov));
2119 auio.uio_iov = &aiov;
2120 auio.uio_segflg = UIO_SYSSPACE;
2121 auio.uio_rw = UIO_WRITE;
2122 auio.uio_resid = bytes;
2123 auio.uio_iovcnt = 1;
2124 auio.uio_td = curthread;
2125 aiov.iov_base = ap->a_target;
2126 aiov.iov_len = bytes;
2127 error = hammer2_write_file(nip, &auio, IO_APPEND, 0);
2128 /* XXX handle error */
2131 hammer2_inode_unlock(nip);
2135 * Update dip's mtime
2140 /*hammer2_inode_lock(dip, HAMMER2_RESOLVE_SHARED);*/
2141 hammer2_update_time(&mtime);
2142 hammer2_inode_modify(dip);
2143 dip->meta.mtime = mtime;
2144 /*hammer2_inode_unlock(dip);*/
2146 hammer2_inode_unlock(dip);
2148 hammer2_trans_done(dip->pmp, HAMMER2_TRANS_SIDEQ);
2151 * Finalize namecache
2154 cache_setunresolved(ap->a_nch);
2155 cache_setvp(ap->a_nch, *ap->a_vpp);
2156 hammer2_knote(ap->a_dvp, NOTE_WRITE);
2162 hammer2_nsymlink(struct m_vnode *dvp, struct m_vnode **vpp, char *name, int nlen,
2163 char *target, mode_t mode)
2165 struct namecache nc = {
2169 struct nchandle nch = {
2172 uid_t va_uid = VNOVAL; //getuid();
2173 uid_t va_gid = VNOVAL; //getgid();
2176 .va_mode = mode & ~S_IFMT,
2180 struct vop_nsymlink_args ap = {
2188 return hammer2_vop_nsymlink(&ap);
2192 * hammer2_vop_nremove { nch, dvp, cred }
2196 hammer2_vop_nremove(struct vop_nremove_args *ap)
2199 hammer2_xop_unlink_t *xop;
2200 hammer2_inode_t *dip;
2201 hammer2_inode_t *ip;
2202 struct m_vnode *vprecycle;
2203 struct namecache *ncp;
2206 dip = VTOI(ap->a_dvp);
2207 if (dip->pmp->ronly)
2210 /* allow removals, except user to also bulkfree */
2211 if (hammer2_vfs_enospace(dip, 0, ap->a_cred) > 1)
2215 ncp = ap->a_nch->ncp;
2217 if (hammer2_debug_inode && dip->meta.inum == hammer2_debug_inode) {
2218 kprintf("hammer2: attempt to delete inside debug inode: %s\n",
2220 while (hammer2_debug_inode &&
2221 dip->meta.inum == hammer2_debug_inode) {
2222 tsleep(&hammer2_debug_inode, 0, "h2debug", hz*5);
2226 hammer2_trans_init(dip->pmp, 0);
2227 hammer2_inode_lock(dip, 0);
2230 * The unlink XOP unlinks the path from the directory and
2231 * locates and returns the cluster associated with the real inode.
2232 * We have to handle nlinks here on the frontend.
2234 xop = hammer2_xop_alloc(dip, HAMMER2_XOP_MODIFYING);
2235 hammer2_xop_setname(&xop->head, ncp->nc_name, ncp->nc_nlen);
2238 xop->dopermanent = 0;
2239 hammer2_xop_start(&xop->head, &hammer2_unlink_desc);
2242 * Collect the real inode and adjust nlinks, destroy the real
2243 * inode if nlinks transitions to 0 and it was the real inode
2244 * (else it has already been removed).
2246 error = hammer2_xop_collect(&xop->head, 0);
2247 error = hammer2_error_to_errno(error);
2251 ip = hammer2_inode_get(dip->pmp, &xop->head, -1, -1);
2252 hammer2_xop_retire(&xop->head, HAMMER2_XOPMASK_VOP);
2254 if (hammer2_debug_inode &&
2255 ip->meta.inum == hammer2_debug_inode) {
2256 kprintf("hammer2: attempt to delete debug "
2258 while (hammer2_debug_inode &&
2259 ip->meta.inum == hammer2_debug_inode) {
2260 tsleep(&hammer2_debug_inode, 0,
2264 hammer2_inode_unlink_finisher(ip, &vprecycle);
2265 hammer2_inode_depend(dip, ip); /* after modified */
2266 hammer2_inode_unlock(ip);
2269 hammer2_xop_retire(&xop->head, HAMMER2_XOPMASK_VOP);
2273 * Update dip's mtime
2278 /*hammer2_inode_lock(dip, HAMMER2_RESOLVE_SHARED);*/
2279 hammer2_update_time(&mtime);
2280 hammer2_inode_modify(dip);
2281 dip->meta.mtime = mtime;
2282 /*hammer2_inode_unlock(dip);*/
2284 hammer2_inode_unlock(dip);
2286 hammer2_trans_done(dip->pmp, HAMMER2_TRANS_SIDEQ);
2288 cache_unlink(ap->a_nch);
2289 hammer2_knote(ap->a_dvp, NOTE_WRITE);
2292 hammer2_inode_vprecycle(vprecycle);
2296 return (EOPNOTSUPP);
2300 * hammer2_vop_nrmdir { nch, dvp, cred }
2304 hammer2_vop_nrmdir(struct vop_nrmdir_args *ap)
2307 hammer2_xop_unlink_t *xop;
2308 hammer2_inode_t *dip;
2309 hammer2_inode_t *ip;
2310 struct namecache *ncp;
2311 struct m_vnode *vprecycle;
2314 dip = VTOI(ap->a_dvp);
2315 if (dip->pmp->ronly)
2318 /* allow removals, except user to also bulkfree */
2319 if (hammer2_vfs_enospace(dip, 0, ap->a_cred) > 1)
2323 hammer2_trans_init(dip->pmp, 0);
2324 hammer2_inode_lock(dip, 0);
2326 xop = hammer2_xop_alloc(dip, HAMMER2_XOP_MODIFYING);
2328 ncp = ap->a_nch->ncp;
2329 hammer2_xop_setname(&xop->head, ncp->nc_name, ncp->nc_nlen);
2331 xop->dopermanent = 0;
2332 hammer2_xop_start(&xop->head, &hammer2_unlink_desc);
2335 * Collect the real inode and adjust nlinks, destroy the real
2336 * inode if nlinks transitions to 0 and it was the real inode
2337 * (else it has already been removed).
2339 error = hammer2_xop_collect(&xop->head, 0);
2340 error = hammer2_error_to_errno(error);
2344 ip = hammer2_inode_get(dip->pmp, &xop->head, -1, -1);
2345 hammer2_xop_retire(&xop->head, HAMMER2_XOPMASK_VOP);
2347 hammer2_inode_unlink_finisher(ip, &vprecycle);
2348 hammer2_inode_depend(dip, ip); /* after modified */
2349 hammer2_inode_unlock(ip);
2352 hammer2_xop_retire(&xop->head, HAMMER2_XOPMASK_VOP);
2356 * Update dip's mtime
2361 /*hammer2_inode_lock(dip, HAMMER2_RESOLVE_SHARED);*/
2362 hammer2_update_time(&mtime);
2363 hammer2_inode_modify(dip);
2364 dip->meta.mtime = mtime;
2365 /*hammer2_inode_unlock(dip);*/
2367 hammer2_inode_unlock(dip);
2369 hammer2_trans_done(dip->pmp, HAMMER2_TRANS_SIDEQ);
2371 cache_unlink(ap->a_nch);
2372 hammer2_knote(ap->a_dvp, NOTE_WRITE | NOTE_LINK);
2375 hammer2_inode_vprecycle(vprecycle);
2378 return (EOPNOTSUPP);
2382 * hammer2_vop_nrename { fnch, tnch, fdvp, tdvp, cred }
2386 hammer2_vop_nrename(struct vop_nrename_args *ap)
2389 struct namecache *fncp;
2390 struct namecache *tncp;
2391 hammer2_inode_t *fdip; /* source directory */
2392 hammer2_inode_t *tdip; /* target directory */
2393 hammer2_inode_t *ip; /* file being renamed */
2394 hammer2_inode_t *tip; /* replaced target during rename or NULL */
2395 struct m_vnode *vprecycle;
2405 if (ap->a_fdvp->v_mount != ap->a_tdvp->v_mount)
2407 if (ap->a_fdvp->v_mount != ap->a_fnch->ncp->nc_vp->v_mount)
2410 fdip = VTOI(ap->a_fdvp); /* source directory */
2411 tdip = VTOI(ap->a_tdvp); /* target directory */
2413 if (fdip->pmp->ronly || (fdip->pmp->flags & HAMMER2_PMPF_EMERG))
2415 if (hammer2_vfs_enospace(fdip, 0, ap->a_cred) > 1)
2418 fncp = ap->a_fnch->ncp; /* entry name in source */
2419 fname = fncp->nc_name;
2420 fname_len = fncp->nc_nlen;
2422 tncp = ap->a_tnch->ncp; /* entry name in target */
2423 tname = tncp->nc_name;
2424 tname_len = tncp->nc_nlen;
2426 hammer2_trans_init(tdip->pmp, 0);
2431 ip = VTOI(fncp->nc_vp);
2432 hammer2_inode_ref(ip); /* extra ref */
2435 * Lookup the target name to determine if a directory entry
2436 * is being overwritten. We only hold related inode locks
2437 * temporarily, the operating system is expected to protect
2438 * against rename races.
2440 tip = tncp->nc_vp ? VTOI(tncp->nc_vp) : NULL;
2442 hammer2_inode_ref(tip); /* extra ref */
2445 * Can return NULL and error == EXDEV if the common parent
2446 * crosses a directory with the xlink flag set.
2448 * For now try to avoid deadlocks with a simple pointer address
2449 * test. (tip) can be NULL.
2453 hammer2_inode_t *ip1 = fdip;
2454 hammer2_inode_t *ip2 = tdip;
2455 hammer2_inode_t *ip3 = ip;
2456 hammer2_inode_t *ip4 = tip; /* may be NULL */
2462 if (tip && ip > tip) {
2466 hammer2_inode_lock4(ip1, ip2, ip3, ip4);
2470 * Resolve the collision space for (tdip, tname, tname_len)
2472 * tdip must be held exclusively locked to prevent races since
2473 * multiple filenames can end up in the same collision space.
2476 hammer2_xop_scanlhc_t *sxop;
2477 hammer2_tid_t lhcbase;
2479 tlhc = hammer2_dirhash(tname, tname_len);
2481 sxop = hammer2_xop_alloc(tdip, HAMMER2_XOP_MODIFYING);
2483 hammer2_xop_start(&sxop->head, &hammer2_scanlhc_desc);
2484 while ((error = hammer2_xop_collect(&sxop->head, 0)) == 0) {
2485 if (tlhc != sxop->head.cluster.focus->bref.key)
2489 error = hammer2_error_to_errno(error);
2490 hammer2_xop_retire(&sxop->head, HAMMER2_XOPMASK_VOP);
2493 if (error != ENOENT)
2498 if ((lhcbase ^ tlhc) & ~HAMMER2_DIRHASH_LOMASK) {
2505 * Ready to go, issue the rename to the backend. Note that meta-data
2506 * updates to the related inodes occur separately from the rename
2509 * NOTE: While it is not necessary to update ip->meta.name*, doing
2510 * so aids catastrophic recovery and debugging.
2513 hammer2_xop_nrename_t *xop4;
2515 xop4 = hammer2_xop_alloc(fdip, HAMMER2_XOP_MODIFYING);
2517 xop4->ip_key = ip->meta.name_key;
2518 hammer2_xop_setip2(&xop4->head, ip);
2519 hammer2_xop_setip3(&xop4->head, tdip);
2520 if (tip && tip->meta.type == HAMMER2_OBJTYPE_DIRECTORY)
2521 hammer2_xop_setip4(&xop4->head, tip);
2522 hammer2_xop_setname(&xop4->head, fname, fname_len);
2523 hammer2_xop_setname2(&xop4->head, tname, tname_len);
2524 hammer2_xop_start(&xop4->head, &hammer2_nrename_desc);
2526 error = hammer2_xop_collect(&xop4->head, 0);
2527 error = hammer2_error_to_errno(error);
2528 hammer2_xop_retire(&xop4->head, HAMMER2_XOPMASK_VOP);
2530 if (error == ENOENT)
2534 * Update inode meta-data.
2536 * WARNING! The in-memory inode (ip) structure does not
2537 * maintain a copy of the inode's filename buffer.
2540 (ip->meta.name_key & HAMMER2_DIRHASH_VISIBLE)) {
2541 hammer2_inode_modify(ip);
2542 ip->meta.name_len = tname_len;
2543 ip->meta.name_key = tlhc;
2546 hammer2_inode_modify(ip);
2547 ip->meta.iparent = tdip->meta.inum;
2555 * If no error, the backend has replaced the target directory entry.
2556 * We must adjust nlinks on the original replace target if it exists.
2559 if (error == 0 && tip) {
2560 hammer2_inode_unlink_finisher(tip, &vprecycle);
2564 * Update directory mtimes to represent the something changed.
2566 if (update_fdip || update_tdip) {
2569 hammer2_update_time(&mtime);
2571 hammer2_inode_modify(fdip);
2572 fdip->meta.mtime = mtime;
2575 hammer2_inode_modify(tdip);
2576 tdip->meta.mtime = mtime;
2580 hammer2_inode_unlock(tip);
2581 hammer2_inode_drop(tip);
2583 hammer2_inode_unlock(ip);
2584 hammer2_inode_unlock(tdip);
2585 hammer2_inode_unlock(fdip);
2586 hammer2_inode_drop(ip);
2587 hammer2_trans_done(tdip->pmp, HAMMER2_TRANS_SIDEQ);
2590 * Issue the namecache update after unlocking all the internal
2591 * hammer2 structures, otherwise we might deadlock.
2593 * WARNING! The target namespace must be updated atomically,
2594 * and we depend on cache_rename() to handle that for
2595 * us. Do not do a separate cache_unlink() because
2596 * that leaves a small window of opportunity for other
2597 * threads to allocate the target namespace before we
2598 * manage to complete our rename.
2600 * WARNING! cache_rename() (and cache_unlink()) will properly
2601 * set VREF_FINALIZE on any attached vnode. Do not
2602 * call cache_setunresolved() manually before-hand as
2603 * this will prevent the flag from being set later via
2604 * cache_rename(). If VREF_FINALIZE is not properly set
2605 * and the inode is no longer in the topology, related
2606 * chains can remain dirty indefinitely.
2608 if (error == 0 && tip) {
2609 /*cache_unlink(ap->a_tnch); see above */
2610 /*cache_setunresolved(ap->a_tnch); see above */
2613 cache_rename(ap->a_fnch, ap->a_tnch);
2614 hammer2_knote(ap->a_fdvp, NOTE_WRITE);
2615 hammer2_knote(ap->a_tdvp, NOTE_WRITE);
2616 hammer2_knote(fncp->nc_vp, NOTE_RENAME);
2619 hammer2_inode_vprecycle(vprecycle);
2623 return (EOPNOTSUPP);
2627 * hammer2_vop_ioctl { vp, command, data, fflag, cred }
2631 hammer2_vop_ioctl(struct vop_ioctl_args *ap)
2634 hammer2_inode_t *ip;
2637 ip = VTOI(ap->a_vp);
2639 error = hammer2_ioctl(ip, ap->a_command, (void *)ap->a_data,
2640 ap->a_fflag, ap->a_cred);
2643 return (EOPNOTSUPP);
2648 hammer2_vop_mountctl(struct vop_mountctl_args *ap)
2656 case (MOUNTCTL_SET_EXPORT):
2657 mp = ap->a_head.a_ops->head.vv_mount;
2660 if (ap->a_ctllen != sizeof(struct export_args))
2663 rc = vfs_export(mp, &pmp->export,
2664 (const struct export_args *)ap->a_ctl);
2667 rc = vop_stdmountctl(ap);
2672 return (EOPNOTSUPP);
2679 static void filt_hammer2detach(struct knote *kn);
2680 static int filt_hammer2read(struct knote *kn, long hint);
2681 static int filt_hammer2write(struct knote *kn, long hint);
2682 static int filt_hammer2vnode(struct knote *kn, long hint);
2684 static struct filterops hammer2read_filtops =
2685 { FILTEROP_ISFD | FILTEROP_MPSAFE,
2686 NULL, filt_hammer2detach, filt_hammer2read };
2687 static struct filterops hammer2write_filtops =
2688 { FILTEROP_ISFD | FILTEROP_MPSAFE,
2689 NULL, filt_hammer2detach, filt_hammer2write };
2690 static struct filterops hammer2vnode_filtops =
2691 { FILTEROP_ISFD | FILTEROP_MPSAFE,
2692 NULL, filt_hammer2detach, filt_hammer2vnode };
2697 hammer2_vop_kqfilter(struct vop_kqfilter_args *ap)
2700 struct m_vnode *vp = ap->a_vp;
2701 struct knote *kn = ap->a_kn;
2703 switch (kn->kn_filter) {
2705 kn->kn_fop = &hammer2read_filtops;
2708 kn->kn_fop = &hammer2write_filtops;
2711 kn->kn_fop = &hammer2vnode_filtops;
2714 return (EOPNOTSUPP);
2717 kn->kn_hook = (caddr_t)vp;
2719 knote_insert(&vp->v_pollinfo.vpi_kqinfo.ki_note, kn);
2723 return (EOPNOTSUPP);
2728 filt_hammer2detach(struct knote *kn)
2730 struct m_vnode *vp = (void *)kn->kn_hook;
2732 knote_remove(&vp->v_pollinfo.vpi_kqinfo.ki_note, kn);
2736 filt_hammer2read(struct knote *kn, long hint)
2738 struct m_vnode *vp = (void *)kn->kn_hook;
2739 hammer2_inode_t *ip = VTOI(vp);
2742 if (hint == NOTE_REVOKE) {
2743 kn->kn_flags |= (EV_EOF | EV_NODATA | EV_ONESHOT);
2746 off = ip->meta.size - kn->kn_fp->f_offset;
2747 kn->kn_data = (off < INTPTR_MAX) ? off : INTPTR_MAX;
2748 if (kn->kn_sfflags & NOTE_OLDAPI)
2750 return (kn->kn_data != 0);
2755 filt_hammer2write(struct knote *kn, long hint)
2757 if (hint == NOTE_REVOKE)
2758 kn->kn_flags |= (EV_EOF | EV_NODATA | EV_ONESHOT);
2764 filt_hammer2vnode(struct knote *kn, long hint)
2766 if (kn->kn_sfflags & hint)
2767 kn->kn_fflags |= hint;
2768 if (hint == NOTE_REVOKE) {
2769 kn->kn_flags |= (EV_EOF | EV_NODATA);
2772 return (kn->kn_fflags != 0);
2781 hammer2_vop_markatime(struct vop_markatime_args *ap)
2784 hammer2_inode_t *ip;
2790 if (ip->pmp->ronly || (ip->pmp->flags & HAMMER2_PMPF_EMERG))
2794 return (EOPNOTSUPP);
2799 hammer2_vop_fifokqfilter(struct vop_kqfilter_args *ap)
2804 error = VOCALL(&fifo_vnode_vops, &ap->a_head);
2806 error = hammer2_vop_kqfilter(ap);
2809 return (EOPNOTSUPP);
2815 struct vop_ops hammer2_vnode_vops = {
2816 .vop_default = vop_defaultop,
2817 .vop_fsync = hammer2_vop_fsync,
2818 .vop_getpages = vop_stdgetpages,
2819 .vop_putpages = vop_stdputpages,
2820 .vop_access = hammer2_vop_access,
2821 .vop_advlock = hammer2_vop_advlock,
2822 .vop_close = hammer2_vop_close,
2823 .vop_nlink = hammer2_vop_nlink,
2824 .vop_ncreate = hammer2_vop_ncreate,
2825 .vop_nsymlink = hammer2_vop_nsymlink,
2826 .vop_nremove = hammer2_vop_nremove,
2827 .vop_nrmdir = hammer2_vop_nrmdir,
2828 .vop_nrename = hammer2_vop_nrename,
2829 .vop_getattr = hammer2_vop_getattr,
2830 .vop_getattr_lite = hammer2_vop_getattr_lite,
2831 .vop_setattr = hammer2_vop_setattr,
2832 .vop_readdir = hammer2_vop_readdir,
2833 .vop_readlink = hammer2_vop_readlink,
2834 .vop_read = hammer2_vop_read,
2835 .vop_write = hammer2_vop_write,
2836 .vop_open = hammer2_vop_open,
2837 .vop_inactive = hammer2_vop_inactive,
2838 .vop_reclaim = hammer2_vop_reclaim,
2839 .vop_nresolve = hammer2_vop_nresolve,
2840 .vop_nlookupdotdot = hammer2_vop_nlookupdotdot,
2841 .vop_nmkdir = hammer2_vop_nmkdir,
2842 .vop_nmknod = hammer2_vop_nmknod,
2843 .vop_ioctl = hammer2_vop_ioctl,
2844 .vop_mountctl = hammer2_vop_mountctl,
2845 .vop_bmap = hammer2_vop_bmap,
2846 .vop_strategy = hammer2_vop_strategy,
2847 .vop_kqfilter = hammer2_vop_kqfilter
2850 struct vop_ops hammer2_spec_vops = {
2851 .vop_default = vop_defaultop,
2852 .vop_fsync = hammer2_vop_fsync,
2853 .vop_read = vop_stdnoread,
2854 .vop_write = vop_stdnowrite,
2855 .vop_access = hammer2_vop_access,
2856 .vop_close = hammer2_vop_close,
2857 .vop_markatime = hammer2_vop_markatime,
2858 .vop_getattr = hammer2_vop_getattr,
2859 .vop_inactive = hammer2_vop_inactive,
2860 .vop_reclaim = hammer2_vop_reclaim,
2861 .vop_setattr = hammer2_vop_setattr
2864 struct vop_ops hammer2_fifo_vops = {
2865 .vop_default = fifo_vnoperate,
2866 .vop_fsync = hammer2_vop_fsync,
2868 .vop_read = hammer2_vop_fiforead,
2869 .vop_write = hammer2_vop_fifowrite,
2871 .vop_access = hammer2_vop_access,
2873 .vop_close = hammer2_vop_fifoclose,
2875 .vop_markatime = hammer2_vop_markatime,
2876 .vop_getattr = hammer2_vop_getattr,
2877 .vop_inactive = hammer2_vop_inactive,
2878 .vop_reclaim = hammer2_vop_reclaim,
2879 .vop_setattr = hammer2_vop_setattr,
2880 .vop_kqfilter = hammer2_vop_fifokqfilter