2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1989, 1993
5 * The Regents of the University of California. All rights reserved.
7 * This code is derived from software contributed
8 * to Berkeley by John Heidemann of the UCLA Ficus project.
10 * Source: * @(#)i405_init.c 2.10 92/04/27 UCLA Ficus project
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD$");
40 #include <sys/param.h>
41 #include <sys/systm.h>
45 #include <sys/event.h>
46 #include <sys/kernel.h>
47 #include <sys/limits.h>
49 #include <sys/lockf.h>
50 #include <sys/malloc.h>
51 #include <sys/mount.h>
52 #include <sys/namei.h>
53 #include <sys/rwlock.h>
54 #include <sys/fcntl.h>
55 #include <sys/unistd.h>
56 #include <sys/vnode.h>
57 #include <sys/dirent.h>
60 #include <security/mac/mac_framework.h>
63 #include <vm/vm_object.h>
64 #include <vm/vm_extern.h>
66 #include <vm/vm_map.h>
67 #include <vm/vm_page.h>
68 #include <vm/vm_pager.h>
69 #include <vm/vnode_pager.h>
71 static int vop_nolookup(struct vop_lookup_args *);
72 static int vop_norename(struct vop_rename_args *);
73 static int vop_nostrategy(struct vop_strategy_args *);
74 static int get_next_dirent(struct vnode *vp, struct dirent **dpp,
75 char *dirbuf, int dirbuflen, off_t *off,
76 char **cpos, int *len, int *eofflag,
78 static int dirent_exists(struct vnode *vp, const char *dirname,
81 #define DIRENT_MINSIZE (sizeof(struct dirent) - (MAXNAMLEN+1) + 4)
83 static int vop_stdis_text(struct vop_is_text_args *ap);
84 static int vop_stdunset_text(struct vop_unset_text_args *ap);
85 static int vop_stdadd_writecount(struct vop_add_writecount_args *ap);
86 static int vop_stdfdatasync(struct vop_fdatasync_args *ap);
87 static int vop_stdgetpages_async(struct vop_getpages_async_args *ap);
90 * This vnode table stores what we want to do if the filesystem doesn't
91 * implement a particular VOP.
93 * If there is no specific entry here, we will return EOPNOTSUPP.
95 * Note that every filesystem has to implement either vop_access
96 * or vop_accessx; failing to do so will result in immediate crash
97 * due to stack overflow, as vop_stdaccess() calls vop_stdaccessx(),
98 * which calls vop_stdaccess() etc.
101 struct vop_vector default_vnodeops = {
103 .vop_bypass = VOP_EOPNOTSUPP,
105 .vop_access = vop_stdaccess,
106 .vop_accessx = vop_stdaccessx,
107 .vop_advise = vop_stdadvise,
108 .vop_advlock = vop_stdadvlock,
109 .vop_advlockasync = vop_stdadvlockasync,
110 .vop_advlockpurge = vop_stdadvlockpurge,
111 .vop_allocate = vop_stdallocate,
112 .vop_bmap = vop_stdbmap,
113 .vop_close = VOP_NULL,
114 .vop_fsync = VOP_NULL,
115 .vop_fdatasync = vop_stdfdatasync,
116 .vop_getpages = vop_stdgetpages,
117 .vop_getpages_async = vop_stdgetpages_async,
118 .vop_getwritemount = vop_stdgetwritemount,
119 .vop_inactive = VOP_NULL,
120 .vop_ioctl = VOP_ENOTTY,
121 .vop_kqfilter = vop_stdkqfilter,
122 .vop_islocked = vop_stdislocked,
123 .vop_lock1 = vop_stdlock,
124 .vop_lookup = vop_nolookup,
125 .vop_open = VOP_NULL,
126 .vop_pathconf = VOP_EINVAL,
127 .vop_poll = vop_nopoll,
128 .vop_putpages = vop_stdputpages,
129 .vop_readlink = VOP_EINVAL,
130 .vop_rename = vop_norename,
131 .vop_revoke = VOP_PANIC,
132 .vop_strategy = vop_nostrategy,
133 .vop_unlock = vop_stdunlock,
134 .vop_vptocnp = vop_stdvptocnp,
135 .vop_vptofh = vop_stdvptofh,
136 .vop_unp_bind = vop_stdunp_bind,
137 .vop_unp_connect = vop_stdunp_connect,
138 .vop_unp_detach = vop_stdunp_detach,
139 .vop_is_text = vop_stdis_text,
140 .vop_set_text = vop_stdset_text,
141 .vop_unset_text = vop_stdunset_text,
142 .vop_add_writecount = vop_stdadd_writecount,
146 * Series of placeholder functions for various error returns for
151 vop_eopnotsupp(struct vop_generic_args *ap)
154 printf("vop_notsupp[%s]\n", ap->a_desc->vdesc_name);
161 vop_ebadf(struct vop_generic_args *ap)
168 vop_enotty(struct vop_generic_args *ap)
175 vop_einval(struct vop_generic_args *ap)
182 vop_enoent(struct vop_generic_args *ap)
189 vop_null(struct vop_generic_args *ap)
196 * Helper function to panic on some bad VOPs in some filesystems.
199 vop_panic(struct vop_generic_args *ap)
202 panic("filesystem goof: vop_panic[%s]", ap->a_desc->vdesc_name);
206 * vop_std<something> and vop_no<something> are default functions for use by
207 * filesystems that need the "default reasonable" implementation for a
208 * particular operation.
210 * The documentation for the operations they implement exists (if it exists)
211 * in the VOP_<SOMETHING>(9) manpage (all uppercase).
215 * Default vop for filesystems that do not support name lookup
219 struct vop_lookup_args /* {
221 struct vnode **a_vpp;
222 struct componentname *a_cnp;
233 * Handle unlock and reference counting for arguments of vop_rename
234 * for filesystems that do not implement rename operation.
237 vop_norename(struct vop_rename_args *ap)
247 * Strategy routine for VFS devices that have none.
249 * BIO_ERROR and B_INVAL must be cleared prior to calling any strategy
250 * routine. Typically this is done for a BIO_READ strategy call.
251 * Typically B_INVAL is assumed to already be clear prior to a write
252 * and should not be cleared manually unless you just made the buffer
253 * invalid. BIO_ERROR should be cleared either way.
257 vop_nostrategy (struct vop_strategy_args *ap)
259 printf("No strategy for buffer at %p\n", ap->a_bp);
260 vn_printf(ap->a_vp, "vnode ");
261 ap->a_bp->b_ioflags |= BIO_ERROR;
262 ap->a_bp->b_error = EOPNOTSUPP;
268 get_next_dirent(struct vnode *vp, struct dirent **dpp, char *dirbuf,
269 int dirbuflen, off_t *off, char **cpos, int *len,
270 int *eofflag, struct thread *td)
277 KASSERT(VOP_ISLOCKED(vp), ("vp %p is not locked", vp));
278 KASSERT(vp->v_type == VDIR, ("vp %p is not a directory", vp));
281 iov.iov_base = dirbuf;
282 iov.iov_len = dirbuflen;
286 uio.uio_offset = *off;
287 uio.uio_resid = dirbuflen;
288 uio.uio_segflg = UIO_SYSSPACE;
289 uio.uio_rw = UIO_READ;
295 error = mac_vnode_check_readdir(td->td_ucred, vp);
298 error = VOP_READDIR(vp, &uio, td->td_ucred, eofflag,
303 *off = uio.uio_offset;
306 *len = (dirbuflen - uio.uio_resid);
312 dp = (struct dirent *)(*cpos);
313 reclen = dp->d_reclen;
316 /* check for malformed directory.. */
317 if (reclen < DIRENT_MINSIZE)
327 * Check if a named file exists in a given directory vnode.
330 dirent_exists(struct vnode *vp, const char *dirname, struct thread *td)
333 int error, eofflag, dirbuflen, len, found;
338 KASSERT(VOP_ISLOCKED(vp), ("vp %p is not locked", vp));
339 KASSERT(vp->v_type == VDIR, ("vp %p is not a directory", vp));
343 error = VOP_GETATTR(vp, &va, td->td_ucred);
347 dirbuflen = DEV_BSIZE;
348 if (dirbuflen < va.va_blocksize)
349 dirbuflen = va.va_blocksize;
350 dirbuf = (char *)malloc(dirbuflen, M_TEMP, M_WAITOK);
355 error = get_next_dirent(vp, &dp, dirbuf, dirbuflen, &off,
356 &cpos, &len, &eofflag, td);
360 if (dp->d_type != DT_WHT && dp->d_fileno != 0 &&
361 strcmp(dp->d_name, dirname) == 0) {
365 } while (len > 0 || !eofflag);
368 free(dirbuf, M_TEMP);
373 vop_stdaccess(struct vop_access_args *ap)
376 KASSERT((ap->a_accmode & ~(VEXEC | VWRITE | VREAD | VADMIN |
377 VAPPEND)) == 0, ("invalid bit in accmode"));
379 return (VOP_ACCESSX(ap->a_vp, ap->a_accmode, ap->a_cred, ap->a_td));
383 vop_stdaccessx(struct vop_accessx_args *ap)
386 accmode_t accmode = ap->a_accmode;
388 error = vfs_unixify_accmode(&accmode);
395 return (VOP_ACCESS(ap->a_vp, accmode, ap->a_cred, ap->a_td));
399 * Advisory record locking support
402 vop_stdadvlock(struct vop_advlock_args *ap)
409 if (ap->a_fl->l_whence == SEEK_END) {
411 * The NFSv4 server must avoid doing a vn_lock() here, since it
412 * can deadlock the nfsd threads, due to a LOR. Fortunately
413 * the NFSv4 server always uses SEEK_SET and this code is
414 * only required for the SEEK_END case.
416 vn_lock(vp, LK_SHARED | LK_RETRY);
417 error = VOP_GETATTR(vp, &vattr, curthread->td_ucred);
424 return (lf_advlock(ap, &(vp->v_lockf), vattr.va_size));
428 vop_stdadvlockasync(struct vop_advlockasync_args *ap)
435 if (ap->a_fl->l_whence == SEEK_END) {
436 /* The size argument is only needed for SEEK_END. */
437 vn_lock(vp, LK_SHARED | LK_RETRY);
438 error = VOP_GETATTR(vp, &vattr, curthread->td_ucred);
445 return (lf_advlockasync(ap, &(vp->v_lockf), vattr.va_size));
449 vop_stdadvlockpurge(struct vop_advlockpurge_args *ap)
454 lf_purgelocks(vp, &vp->v_lockf);
461 * Standard implementation of POSIX pathconf, to get information about limits
463 * Override per filesystem for the case where the filesystem has smaller
468 struct vop_pathconf_args /* {
475 switch (ap->a_name) {
477 *ap->a_retval = _POSIX_ASYNCHRONOUS_IO;
480 *ap->a_retval = PATH_MAX;
482 case _PC_ACL_EXTENDED:
484 case _PC_CAP_PRESENT:
485 case _PC_INF_PRESENT:
486 case _PC_MAC_PRESENT:
496 * Standard lock, unlock and islocked functions.
500 struct vop_lock1_args /* {
507 struct vnode *vp = ap->a_vp;
511 return (lockmgr_lock_fast_path(vp->v_vnlock, ap->a_flags,
512 &ilk->lock_object, ap->a_file, ap->a_line));
518 struct vop_unlock_args /* {
523 struct vnode *vp = ap->a_vp;
527 return (lockmgr_unlock_fast_path(vp->v_vnlock, ap->a_flags,
534 struct vop_islocked_args /* {
539 return (lockstatus(ap->a_vp->v_vnlock));
543 * Return true for select/poll.
547 struct vop_poll_args /* {
550 struct ucred *a_cred;
555 return (poll_no_poll(ap->a_events));
559 * Implement poll for local filesystems that support it.
563 struct vop_poll_args /* {
566 struct ucred *a_cred;
570 if (ap->a_events & ~POLLSTANDARD)
571 return (vn_pollrecord(ap->a_vp, ap->a_td, ap->a_events));
572 return (ap->a_events & (POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM));
576 * Return our mount point, as we will take charge of the writes.
579 vop_stdgetwritemount(ap)
580 struct vop_getwritemount_args /* {
582 struct mount **a_mpp;
588 * XXX Since this is called unlocked we may be recycled while
589 * attempting to ref the mount. If this is the case or mountpoint
590 * will be set to NULL. We only have to prevent this call from
591 * returning with a ref to an incorrect mountpoint. It is not
592 * harmful to return with a ref to our previous mountpoint.
594 mp = ap->a_vp->v_mount;
597 if (mp != ap->a_vp->v_mount) {
607 * If the file system doesn't implement VOP_BMAP, then return sensible defaults:
608 * - Return the vnode's bufobj instead of any underlying device's bufobj
609 * - Calculate the physical block number as if there were equal size
610 * consecutive blocks, but
611 * - Report no contiguous runs of blocks.
615 struct vop_bmap_args /* {
618 struct bufobj **a_bop;
625 if (ap->a_bop != NULL)
626 *ap->a_bop = &ap->a_vp->v_bufobj;
627 if (ap->a_bnp != NULL)
628 *ap->a_bnp = ap->a_bn * btodb(ap->a_vp->v_mount->mnt_stat.f_iosize);
629 if (ap->a_runp != NULL)
631 if (ap->a_runb != NULL)
638 struct vop_fsync_args /* {
645 return (vn_fsync_buf(ap->a_vp, ap->a_waitfor));
649 vop_stdfdatasync(struct vop_fdatasync_args *ap)
652 return (VOP_FSYNC(ap->a_vp, MNT_WAIT, ap->a_td));
656 vop_stdfdatasync_buf(struct vop_fdatasync_args *ap)
659 return (vn_fsync_buf(ap->a_vp, MNT_WAIT));
662 /* XXX Needs good comment and more info in the manpage (VOP_GETPAGES(9)). */
665 struct vop_getpages_args /* {
674 return vnode_pager_generic_getpages(ap->a_vp, ap->a_m,
675 ap->a_count, ap->a_rbehind, ap->a_rahead, NULL, NULL);
679 vop_stdgetpages_async(struct vop_getpages_async_args *ap)
683 error = VOP_GETPAGES(ap->a_vp, ap->a_m, ap->a_count, ap->a_rbehind,
685 if (ap->a_iodone != NULL)
686 ap->a_iodone(ap->a_arg, ap->a_m, ap->a_count, error);
691 vop_stdkqfilter(struct vop_kqfilter_args *ap)
693 return vfs_kqfilter(ap);
696 /* XXX Needs good comment and more info in the manpage (VOP_PUTPAGES(9)). */
699 struct vop_putpages_args /* {
708 return vnode_pager_generic_putpages(ap->a_vp, ap->a_m, ap->a_count,
709 ap->a_sync, ap->a_rtvals);
713 vop_stdvptofh(struct vop_vptofh_args *ap)
719 vop_stdvptocnp(struct vop_vptocnp_args *ap)
721 struct vnode *vp = ap->a_vp;
722 struct vnode **dvp = ap->a_vpp;
723 struct ucred *cred = ap->a_cred;
724 char *buf = ap->a_buf;
725 int *buflen = ap->a_buflen;
727 int i, error, eofflag, dirbuflen, flags, locked, len, covered;
741 if (vp->v_type != VDIR)
744 error = VOP_GETATTR(vp, &va, cred);
749 locked = VOP_ISLOCKED(vp);
751 NDINIT_ATVP(&nd, LOOKUP, FOLLOW | LOCKSHARED | LOCKLEAF, UIO_SYSSPACE,
754 error = vn_open_cred(&nd, &flags, 0, VN_OPEN_NOAUDIT, cred, NULL);
756 vn_lock(vp, locked | LK_RETRY);
759 NDFREE(&nd, NDF_ONLY_PNBUF);
761 mvp = *dvp = nd.ni_vp;
763 if (vp->v_mount != (*dvp)->v_mount &&
764 ((*dvp)->v_vflag & VV_ROOT) &&
765 ((*dvp)->v_mount->mnt_flag & MNT_UNION)) {
766 *dvp = (*dvp)->v_mount->mnt_vnodecovered;
769 vn_close(mvp, FREAD, cred, td);
771 vn_lock(*dvp, LK_SHARED | LK_RETRY);
775 fileno = va.va_fileid;
777 dirbuflen = DEV_BSIZE;
778 if (dirbuflen < va.va_blocksize)
779 dirbuflen = va.va_blocksize;
780 dirbuf = (char *)malloc(dirbuflen, M_TEMP, M_WAITOK);
782 if ((*dvp)->v_type != VDIR) {
790 /* call VOP_READDIR of parent */
791 error = get_next_dirent(*dvp, &dp, dirbuf, dirbuflen, &off,
792 &cpos, &len, &eofflag, td);
796 if ((dp->d_type != DT_WHT) &&
797 (dp->d_fileno == fileno)) {
800 vn_lock(mvp, LK_SHARED | LK_RETRY);
801 if (dirent_exists(mvp, dp->d_name, td)) {
804 vn_lock(*dvp, LK_SHARED | LK_RETRY);
808 vn_lock(*dvp, LK_SHARED | LK_RETRY);
816 if (dp->d_namlen == 1 && dp->d_name[0] == '.') {
819 bcopy(dp->d_name, buf + i, dp->d_namlen);
824 } while (len > 0 || !eofflag);
828 free(dirbuf, M_TEMP);
838 vn_close(mvp, FREAD, cred, td);
840 vn_lock(vp, locked | LK_RETRY);
845 vop_stdallocate(struct vop_allocate_args *ap)
849 off_t maxfilesize = 0;
852 struct vattr vattr, *vap;
854 off_t fsize, len, cur, offset;
867 offset = *ap->a_offset;
869 error = VOP_GETATTR(vp, vap, td->td_ucred);
872 fsize = vap->va_size;
873 iosize = vap->va_blocksize;
875 iosize = BLKDEV_IOSIZE;
876 if (iosize > MAXPHYS)
878 buf = malloc(iosize, M_TEMP, M_WAITOK);
882 * Check if the filesystem sets f_maxfilesize; if not use
883 * VOP_SETATTR to perform the check.
885 sfs = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK);
886 error = VFS_STATFS(vp->v_mount, sfs, td);
888 maxfilesize = sfs->f_maxfilesize;
893 if (offset > maxfilesize || len > maxfilesize ||
894 offset + len > maxfilesize) {
900 if (offset + len > vap->va_size) {
902 * Test offset + len against the filesystem's maxfilesize.
905 vap->va_size = offset + len;
906 error = VOP_SETATTR(vp, vap, td->td_ucred);
910 vap->va_size = fsize;
911 error = VOP_SETATTR(vp, vap, td->td_ucred);
918 * Read and write back anything below the nominal file
919 * size. There's currently no way outside the filesystem
920 * to know whether this area is sparse or not.
923 if ((offset % iosize) != 0)
924 cur -= (offset % iosize);
927 if (offset < fsize) {
930 auio.uio_iov = &aiov;
932 auio.uio_offset = offset;
933 auio.uio_resid = cur;
934 auio.uio_segflg = UIO_SYSSPACE;
935 auio.uio_rw = UIO_READ;
937 error = VOP_READ(vp, &auio, 0, td->td_ucred);
940 if (auio.uio_resid > 0) {
941 bzero(buf + cur - auio.uio_resid,
950 auio.uio_iov = &aiov;
952 auio.uio_offset = offset;
953 auio.uio_resid = cur;
954 auio.uio_segflg = UIO_SYSSPACE;
955 auio.uio_rw = UIO_WRITE;
958 error = VOP_WRITE(vp, &auio, 0, td->td_ucred);
972 *ap->a_offset = offset;
978 vop_stdadvise(struct vop_advise_args *ap)
982 daddr_t startn, endn;
987 switch (ap->a_advice) {
988 case POSIX_FADV_WILLNEED:
990 * Do nothing for now. Filesystems should provide a
991 * custom method which starts an asynchronous read of
992 * the requested region.
996 case POSIX_FADV_DONTNEED:
998 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
999 if (vp->v_iflag & VI_DOOMED) {
1005 * Deactivate pages in the specified range from the backing VM
1006 * object. Pages that are resident in the buffer cache will
1007 * remain wired until their corresponding buffers are released
1010 if (vp->v_object != NULL) {
1011 start = trunc_page(ap->a_start);
1012 end = round_page(ap->a_end);
1013 VM_OBJECT_RLOCK(vp->v_object);
1014 vm_object_page_noreuse(vp->v_object, OFF_TO_IDX(start),
1016 VM_OBJECT_RUNLOCK(vp->v_object);
1021 bsize = vp->v_bufobj.bo_bsize;
1022 startn = ap->a_start / bsize;
1023 endn = ap->a_end / bsize;
1024 error = bnoreuselist(&bo->bo_clean, bo, startn, endn);
1026 error = bnoreuselist(&bo->bo_dirty, bo, startn, endn);
1038 vop_stdunp_bind(struct vop_unp_bind_args *ap)
1041 ap->a_vp->v_unpcb = ap->a_unpcb;
1046 vop_stdunp_connect(struct vop_unp_connect_args *ap)
1049 *ap->a_unpcb = ap->a_vp->v_unpcb;
1054 vop_stdunp_detach(struct vop_unp_detach_args *ap)
1057 ap->a_vp->v_unpcb = NULL;
1062 vop_stdis_text(struct vop_is_text_args *ap)
1065 return (ap->a_vp->v_writecount < 0);
1069 vop_stdset_text(struct vop_set_text_args *ap)
1077 if (vp->v_writecount > 0) {
1081 * If requested by fs, keep a use reference to the
1082 * vnode until the last text reference is released.
1085 if (mp != NULL && (mp->mnt_kern_flag & MNTK_TEXT_REFS) != 0 &&
1086 vp->v_writecount == 0) {
1087 vp->v_iflag |= VI_TEXT_REF;
1099 vop_stdunset_text(struct vop_unset_text_args *ap)
1108 if (vp->v_writecount < 0) {
1109 if ((vp->v_iflag & VI_TEXT_REF) != 0 &&
1110 vp->v_writecount == -1) {
1112 vp->v_iflag &= ~VI_TEXT_REF;
1126 vop_stdadd_writecount(struct vop_add_writecount_args *ap)
1132 VI_LOCK_FLAGS(vp, MTX_DUPOK);
1133 if (vp->v_writecount < 0) {
1136 VNASSERT(vp->v_writecount + ap->a_inc >= 0, vp,
1137 ("neg writecount increment %d", ap->a_inc));
1138 vp->v_writecount += ap->a_inc;
1147 * used to fill the vfs function table to get reasonable default return values.
1150 vfs_stdroot (mp, flags, vpp)
1156 return (EOPNOTSUPP);
1160 vfs_stdstatfs (mp, sbp)
1165 return (EOPNOTSUPP);
1169 vfs_stdquotactl (mp, cmds, uid, arg)
1176 return (EOPNOTSUPP);
1180 vfs_stdsync(mp, waitfor)
1184 struct vnode *vp, *mvp;
1186 int error, lockreq, allerror = 0;
1189 lockreq = LK_EXCLUSIVE | LK_INTERLOCK;
1190 if (waitfor != MNT_WAIT)
1191 lockreq |= LK_NOWAIT;
1193 * Force stale buffer cache information to be flushed.
1196 MNT_VNODE_FOREACH_ALL(vp, mp, mvp) {
1197 if (vp->v_bufobj.bo_dirty.bv_cnt == 0) {
1201 if ((error = vget(vp, lockreq, td)) != 0) {
1202 if (error == ENOENT) {
1203 MNT_VNODE_FOREACH_ALL_ABORT(mp, mvp);
1208 error = VOP_FSYNC(vp, waitfor, td);
1217 vfs_stdnosync (mp, waitfor)
1226 vfs_stdvget (mp, ino, flags, vpp)
1233 return (EOPNOTSUPP);
1237 vfs_stdfhtovp (mp, fhp, flags, vpp)
1244 return (EOPNOTSUPP);
1249 struct vfsconf *vfsp;
1256 vfs_stduninit (vfsp)
1257 struct vfsconf *vfsp;
1264 vfs_stdextattrctl(mp, cmd, filename_vp, attrnamespace, attrname)
1267 struct vnode *filename_vp;
1269 const char *attrname;
1272 if (filename_vp != NULL)
1273 VOP_UNLOCK(filename_vp, 0);
1274 return (EOPNOTSUPP);
1278 vfs_stdsysctl(mp, op, req)
1281 struct sysctl_req *req;
1284 return (EOPNOTSUPP);
1287 /* end of vfs default ops */