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freebsd-dev/sys/fs/ntfs/ntfs_vfsops.c
Attilio Rao 22db15c06f VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used in 
conjuction with 'thread' argument passing which is always curthread.
Remove the unuseful extra-argument and pass explicitly curthread to lower
layer functions, when necessary.

KPI results broken by this change, which should affect several ports, so
version bumping and manpage update will be further committed.

Tested by: kris, pho, Diego Sardina <siarodx at gmail dot com>
2008-01-13 14:44:15 +00:00

796 lines
19 KiB
C
Raw Blame History

/* $NetBSD: ntfs_vfsops.c,v 1.23 1999/11/15 19:38:14 jdolecek Exp $ */
/*-
* Copyright (c) 1998, 1999 Semen Ustimenko
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/namei.h>
#include <sys/conf.h>
#include <sys/proc.h>
#include <sys/kernel.h>
#include <sys/vnode.h>
#include <sys/mount.h>
#include <sys/bio.h>
#include <sys/buf.h>
#include <sys/fcntl.h>
#include <sys/malloc.h>
#include <sys/stat.h>
#include <sys/systm.h>
#include <geom/geom.h>
#include <geom/geom_vfs.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/vm_page.h>
#include <vm/vm_object.h>
#include <vm/vm_extern.h>
/*#define NTFS_DEBUG 1*/
#include <fs/ntfs/ntfs.h>
#include <fs/ntfs/ntfs_inode.h>
#include <fs/ntfs/ntfs_subr.h>
#include <fs/ntfs/ntfs_vfsops.h>
#include <fs/ntfs/ntfs_ihash.h>
#include <fs/ntfs/ntfsmount.h>
static MALLOC_DEFINE(M_NTFSMNT, "ntfs_mount", "NTFS mount structure");
MALLOC_DEFINE(M_NTFSNTNODE,"ntfs_ntnode", "NTFS ntnode information");
MALLOC_DEFINE(M_NTFSFNODE,"ntfs_fnode", "NTFS fnode information");
MALLOC_DEFINE(M_NTFSDIR,"ntfs_dir", "NTFS dir buffer");
struct sockaddr;
static int ntfs_mountfs(register struct vnode *, struct mount *,
struct thread *);
static int ntfs_calccfree(struct ntfsmount *ntmp, cn_t *cfreep);
static vfs_init_t ntfs_init;
static vfs_uninit_t ntfs_uninit;
static vfs_vget_t ntfs_vget;
static vfs_fhtovp_t ntfs_fhtovp;
static vfs_cmount_t ntfs_cmount;
static vfs_mount_t ntfs_mount;
static vfs_root_t ntfs_root;
static vfs_statfs_t ntfs_statfs;
static vfs_unmount_t ntfs_unmount;
static b_strategy_t ntfs_bufstrategy;
/*
* Buffer operations for NTFS vnodes.
* We punt on VOP_BMAP, so we need to do
* strategy on the file's vnode rather
* than the underlying device's
*/
static struct buf_ops ntfs_vnbufops = {
.bop_name = "NTFS",
.bop_strategy = ntfs_bufstrategy,
};
static int
ntfs_init (
struct vfsconf *vcp )
{
ntfs_nthashinit();
ntfs_toupper_init();
return 0;
}
static int
ntfs_uninit (
struct vfsconf *vcp )
{
ntfs_toupper_destroy();
ntfs_nthashdestroy();
return 0;
}
static int
ntfs_cmount (
struct mntarg *ma,
void *data,
int flags,
struct thread *td )
{
int error;
struct ntfs_args args;
error = copyin(data, (caddr_t)&args, sizeof args);
if (error)
return (error);
ma = mount_argsu(ma, "from", args.fspec, MAXPATHLEN);
ma = mount_arg(ma, "export", &args.export, sizeof args.export);
ma = mount_argf(ma, "uid", "%d", args.uid);
ma = mount_argf(ma, "gid", "%d", args.gid);
ma = mount_argf(ma, "mode", "%d", args.mode);
ma = mount_argb(ma, args.flag & NTFS_MFLAG_CASEINS, "nocaseins");
ma = mount_argb(ma, args.flag & NTFS_MFLAG_ALLNAMES, "noallnames");
if (args.flag & NTFS_MFLAG_KICONV) {
ma = mount_argsu(ma, "cs_ntfs", args.cs_ntfs, 64);
ma = mount_argsu(ma, "cs_local", args.cs_local, 64);
}
error = kernel_mount(ma, flags);
return (error);
}
static const char *ntfs_opts[] = {
"from", "export", "uid", "gid", "mode", "caseins", "allnames",
"kiconv", "cs_ntfs", "cs_local", NULL
};
static int
ntfs_mount (
struct mount *mp,
struct thread *td )
{
int err = 0, error;
struct vnode *devvp;
struct nameidata ndp;
char *from;
if (vfs_filteropt(mp->mnt_optnew, ntfs_opts))
return (EINVAL);
from = vfs_getopts(mp->mnt_optnew, "from", &error);
if (error)
return (error);
/*
* If updating, check whether changing from read-only to
* read/write.
*/
if (mp->mnt_flag & MNT_UPDATE) {
if (vfs_flagopt(mp->mnt_optnew, "export", NULL, 0)) {
/* Process export requests in vfs_mount.c */
goto success;
} else {
printf("ntfs_mount(): MNT_UPDATE not supported\n");
err = EINVAL;
goto error_1;
}
}
/*
* Not an update, or updating the name: look up the name
* and verify that it refers to a sensible block device.
*/
NDINIT(&ndp, LOOKUP, FOLLOW | LOCKLEAF, UIO_SYSSPACE, from, td);
err = namei(&ndp);
if (err) {
/* can't get devvp!*/
goto error_1;
}
NDFREE(&ndp, NDF_ONLY_PNBUF);
devvp = ndp.ni_vp;
if (!vn_isdisk(devvp, &err)) {
vput(devvp);
return (err);
}
if (mp->mnt_flag & MNT_UPDATE) {
#if 0
/*
********************
* UPDATE
********************
*/
if (devvp != ntmp->um_devvp)
err = EINVAL; /* needs translation */
vput(devvp);
if (err)
return (err);
#endif
} else {
/*
********************
* NEW MOUNT
********************
*/
/*
* Since this is a new mount, we want the names for
* the device and the mount point copied in. If an
* error occurs, the mountpoint is discarded by the
* upper level code. Note that vfs_mount() handles
* copying the mountpoint f_mntonname for us, so we
* don't have to do it here unless we want to set it
* to something other than "path" for some rason.
*/
/* Save "mounted from" info for mount point (NULL pad)*/
vfs_mountedfrom(mp, from);
err = ntfs_mountfs(devvp, mp, td);
}
if (err) {
vrele(devvp);
return (err);
}
goto success;
error_1: /* no state to back out*/
/* XXX: missing NDFREE(&ndp, ...) */
success:
return(err);
}
/*
* Common code for mount and mountroot
*/
int
ntfs_mountfs(devvp, mp, td)
register struct vnode *devvp;
struct mount *mp;
struct thread *td;
{
struct buf *bp;
struct ntfsmount *ntmp;
struct cdev *dev = devvp->v_rdev;
int error, ronly, i, v;
struct vnode *vp;
struct g_consumer *cp;
struct g_provider *pp;
char *cs_ntfs, *cs_local;
ronly = (mp->mnt_flag & MNT_RDONLY) != 0;
DROP_GIANT();
g_topology_lock();
/*
* XXX: Do not allow more than one consumer to open a device
* associated with a particular GEOM provider.
* This disables multiple read-only mounts of a device,
* but it gets rid of panics in vget() when you try to
* mount the same device more than once.
*/
pp = g_dev_getprovider(devvp->v_rdev);
if ((pp != NULL) && ((pp->acr | pp->acw | pp->ace ) != 0))
error = EPERM;
else
error = g_vfs_open(devvp, &cp, "ntfs", ronly ? 0 : 1);
g_topology_unlock();
PICKUP_GIANT();
VOP_UNLOCK(devvp, 0);
if (error)
return (error);
bp = NULL;
error = bread(devvp, BBLOCK, BBSIZE, NOCRED, &bp);
if (error)
goto out;
ntmp = malloc( sizeof *ntmp, M_NTFSMNT, M_WAITOK | M_ZERO);
bcopy( bp->b_data, &ntmp->ntm_bootfile, sizeof(struct bootfile) );
/*
* We must not cache the boot block if its size is not exactly
* one cluster in order to avoid confusing the buffer cache when
* the boot file is read later by ntfs_readntvattr_plain(), which
* reads a cluster at a time.
*/
if (ntfs_cntob(1) != BBSIZE)
bp->b_flags |= B_NOCACHE;
brelse( bp );
bp = NULL;
if (strncmp((const char *)ntmp->ntm_bootfile.bf_sysid, NTFS_BBID, NTFS_BBIDLEN)) {
error = EINVAL;
dprintf(("ntfs_mountfs: invalid boot block\n"));
goto out;
}
{
int8_t cpr = ntmp->ntm_mftrecsz;
if( cpr > 0 )
ntmp->ntm_bpmftrec = ntmp->ntm_spc * cpr;
else
ntmp->ntm_bpmftrec = (1 << (-cpr)) / ntmp->ntm_bps;
}
dprintf(("ntfs_mountfs(): bps: %d, spc: %d, media: %x, mftrecsz: %d (%d sects)\n",
ntmp->ntm_bps,ntmp->ntm_spc,ntmp->ntm_bootfile.bf_media,
ntmp->ntm_mftrecsz,ntmp->ntm_bpmftrec));
dprintf(("ntfs_mountfs(): mftcn: 0x%x|0x%x\n",
(u_int32_t)ntmp->ntm_mftcn,(u_int32_t)ntmp->ntm_mftmirrcn));
ntmp->ntm_mountp = mp;
ntmp->ntm_devvp = devvp;
if (1 == vfs_scanopt(mp->mnt_optnew, "uid", "%d", &v))
ntmp->ntm_uid = v;
if (1 == vfs_scanopt(mp->mnt_optnew, "gid", "%d", &v))
ntmp->ntm_gid = v;
if (1 == vfs_scanopt(mp->mnt_optnew, "mode", "%d", &v))
ntmp->ntm_mode = v & ACCESSPERMS;
vfs_flagopt(mp->mnt_optnew,
"caseins", &ntmp->ntm_flag, NTFS_MFLAG_CASEINS);
vfs_flagopt(mp->mnt_optnew,
"allnames", &ntmp->ntm_flag, NTFS_MFLAG_ALLNAMES);
ntmp->ntm_cp = cp;
ntmp->ntm_bo = &devvp->v_bufobj;
cs_local = vfs_getopts(mp->mnt_optnew, "cs_local", &error);
if (error && error != ENOENT)
goto out;
cs_ntfs = vfs_getopts(mp->mnt_optnew, "cs_ntfs", &error);
if (error && error != ENOENT)
goto out;
/* Copy in the 8-bit to Unicode conversion table */
/* Initialize Unicode to 8-bit table from 8toU table */
ntfs_82u_init(ntmp, cs_local, cs_ntfs);
if (cs_local != NULL && cs_ntfs != NULL)
ntfs_u28_init(ntmp, NULL, cs_local, cs_ntfs);
else
ntfs_u28_init(ntmp, ntmp->ntm_82u, cs_local, cs_ntfs);
mp->mnt_data = ntmp;
dprintf(("ntfs_mountfs(): case-%s,%s uid: %d, gid: %d, mode: %o\n",
(ntmp->ntm_flag & NTFS_MFLAG_CASEINS)?"insens.":"sens.",
(ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)?" allnames,":"",
ntmp->ntm_uid, ntmp->ntm_gid, ntmp->ntm_mode));
/*
* We read in some system nodes to do not allow
* reclaim them and to have everytime access to them.
*/
{
int pi[3] = { NTFS_MFTINO, NTFS_ROOTINO, NTFS_BITMAPINO };
for (i=0; i<3; i++) {
error = VFS_VGET(mp, pi[i], LK_EXCLUSIVE,
&(ntmp->ntm_sysvn[pi[i]]));
if(error)
goto out1;
ntmp->ntm_sysvn[pi[i]]->v_vflag |= VV_SYSTEM;
VREF(ntmp->ntm_sysvn[pi[i]]);
vput(ntmp->ntm_sysvn[pi[i]]);
}
}
/* read the Unicode lowercase --> uppercase translation table,
* if necessary */
if ((error = ntfs_toupper_use(mp, ntmp)))
goto out1;
/*
* Scan $BitMap and count free clusters
*/
error = ntfs_calccfree(ntmp, &ntmp->ntm_cfree);
if(error)
goto out1;
/*
* Read and translate to internal format attribute
* definition file.
*/
{
int num,j;
struct attrdef ad;
/* Open $AttrDef */
error = VFS_VGET(mp, NTFS_ATTRDEFINO, LK_EXCLUSIVE, &vp );
if(error)
goto out1;
/* Count valid entries */
for(num=0;;num++) {
error = ntfs_readattr(ntmp, VTONT(vp),
NTFS_A_DATA, NULL,
num * sizeof(ad), sizeof(ad),
&ad, NULL);
if (error)
goto out1;
if (ad.ad_name[0] == 0)
break;
}
/* Alloc memory for attribute definitions */
MALLOC(ntmp->ntm_ad, struct ntvattrdef *,
num * sizeof(struct ntvattrdef),
M_NTFSMNT, M_WAITOK);
ntmp->ntm_adnum = num;
/* Read them and translate */
for(i=0;i<num;i++){
error = ntfs_readattr(ntmp, VTONT(vp),
NTFS_A_DATA, NULL,
i * sizeof(ad), sizeof(ad),
&ad, NULL);
if (error)
goto out1;
j = 0;
do {
ntmp->ntm_ad[i].ad_name[j] = ad.ad_name[j];
} while(ad.ad_name[j++]);
ntmp->ntm_ad[i].ad_namelen = j - 1;
ntmp->ntm_ad[i].ad_type = ad.ad_type;
}
vput(vp);
}
mp->mnt_stat.f_fsid.val[0] = dev2udev(dev);
mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum;
mp->mnt_maxsymlinklen = 0;
MNT_ILOCK(mp);
mp->mnt_flag |= MNT_LOCAL;
MNT_IUNLOCK(mp);
return (0);
out1:
for(i=0;i<NTFS_SYSNODESNUM;i++)
if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]);
if (vflush(mp, 0, 0, td))
dprintf(("ntfs_mountfs: vflush failed\n"));
out:
if (bp)
brelse(bp);
DROP_GIANT();
g_topology_lock();
g_vfs_close(cp, td);
g_topology_unlock();
PICKUP_GIANT();
return (error);
}
static int
ntfs_unmount(
struct mount *mp,
int mntflags,
struct thread *td)
{
struct ntfsmount *ntmp;
int error, flags, i;
dprintf(("ntfs_unmount: unmounting...\n"));
ntmp = VFSTONTFS(mp);
flags = 0;
if(mntflags & MNT_FORCE)
flags |= FORCECLOSE;
dprintf(("ntfs_unmount: vflushing...\n"));
error = vflush(mp, 0, flags | SKIPSYSTEM, td);
if (error) {
printf("ntfs_unmount: vflush failed: %d\n",error);
return (error);
}
/* Check if only system vnodes are rest */
for(i=0;i<NTFS_SYSNODESNUM;i++)
if((ntmp->ntm_sysvn[i]) &&
(vrefcnt(ntmp->ntm_sysvn[i]) > 1)) return (EBUSY);
/* Dereference all system vnodes */
for(i=0;i<NTFS_SYSNODESNUM;i++)
if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]);
/* vflush system vnodes */
error = vflush(mp, 0, flags, td);
if (error)
printf("ntfs_unmount: vflush failed(sysnodes): %d\n",error);
vinvalbuf(ntmp->ntm_devvp, V_SAVE, td, 0, 0);
DROP_GIANT();
g_topology_lock();
g_vfs_close(ntmp->ntm_cp, td);
g_topology_unlock();
PICKUP_GIANT();
vrele(ntmp->ntm_devvp);
/* free the toupper table, if this has been last mounted ntfs volume */
ntfs_toupper_unuse();
dprintf(("ntfs_umount: freeing memory...\n"));
ntfs_u28_uninit(ntmp);
ntfs_82u_uninit(ntmp);
mp->mnt_data = NULL;
MNT_ILOCK(mp);
mp->mnt_flag &= ~MNT_LOCAL;
MNT_IUNLOCK(mp);
FREE(ntmp->ntm_ad, M_NTFSMNT);
FREE(ntmp, M_NTFSMNT);
return (error);
}
static int
ntfs_root(
struct mount *mp,
int flags,
struct vnode **vpp,
struct thread *td )
{
struct vnode *nvp;
int error = 0;
dprintf(("ntfs_root(): sysvn: %p\n",
VFSTONTFS(mp)->ntm_sysvn[NTFS_ROOTINO]));
error = VFS_VGET(mp, (ino_t)NTFS_ROOTINO, LK_EXCLUSIVE, &nvp);
if(error) {
printf("ntfs_root: VFS_VGET failed: %d\n",error);
return (error);
}
*vpp = nvp;
return (0);
}
static int
ntfs_calccfree(
struct ntfsmount *ntmp,
cn_t *cfreep)
{
struct vnode *vp;
u_int8_t *tmp;
int j, error;
long cfree = 0;
size_t bmsize, i;
vp = ntmp->ntm_sysvn[NTFS_BITMAPINO];
bmsize = VTOF(vp)->f_size;
MALLOC(tmp, u_int8_t *, bmsize, M_TEMP, M_WAITOK);
error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL,
0, bmsize, tmp, NULL);
if (error)
goto out;
for(i=0;i<bmsize;i++)
for(j=0;j<8;j++)
if(~tmp[i] & (1 << j)) cfree++;
*cfreep = cfree;
out:
FREE(tmp, M_TEMP);
return(error);
}
static int
ntfs_statfs(
struct mount *mp,
struct statfs *sbp,
struct thread *td)
{
struct ntfsmount *ntmp = VFSTONTFS(mp);
u_int64_t mftsize,mftallocated;
dprintf(("ntfs_statfs():\n"));
mftsize = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_size;
mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated;
sbp->f_type = mp->mnt_vfc->vfc_typenum;
sbp->f_bsize = ntmp->ntm_bps;
sbp->f_iosize = ntmp->ntm_bps * ntmp->ntm_spc;
sbp->f_blocks = ntmp->ntm_bootfile.bf_spv;
sbp->f_bfree = sbp->f_bavail = ntfs_cntobn(ntmp->ntm_cfree);
sbp->f_ffree = sbp->f_bfree / ntmp->ntm_bpmftrec;
sbp->f_files = mftallocated / ntfs_bntob(ntmp->ntm_bpmftrec) +
sbp->f_ffree;
sbp->f_flags = mp->mnt_flag;
return (0);
}
/*ARGSUSED*/
static int
ntfs_fhtovp(
struct mount *mp,
struct fid *fhp,
struct vnode **vpp)
{
struct vnode *nvp;
struct ntfid *ntfhp = (struct ntfid *)fhp;
int error;
ddprintf(("ntfs_fhtovp(): %d\n", ntfhp->ntfid_ino));
if ((error = VFS_VGET(mp, ntfhp->ntfid_ino, LK_EXCLUSIVE, &nvp)) != 0) {
*vpp = NULLVP;
return (error);
}
/* XXX as unlink/rmdir/mkdir/creat are not currently possible
* with NTFS, we don't need to check anything else for now */
*vpp = nvp;
vnode_create_vobject(nvp, VTOF(nvp)->f_size, curthread);
return (0);
}
int
ntfs_vgetex(
struct mount *mp,
ino_t ino,
u_int32_t attrtype,
char *attrname,
u_long lkflags,
u_long flags,
struct thread *td,
struct vnode **vpp)
{
int error;
register struct ntfsmount *ntmp;
struct ntnode *ip;
struct fnode *fp;
struct vnode *vp;
enum vtype f_type;
dprintf(("ntfs_vgetex: ino: %d, attr: 0x%x:%s, lkf: 0x%lx, f: 0x%lx\n",
ino, attrtype, attrname?attrname:"", (u_long)lkflags,
(u_long)flags));
ntmp = VFSTONTFS(mp);
*vpp = NULL;
/* Get ntnode */
error = ntfs_ntlookup(ntmp, ino, &ip);
if (error) {
printf("ntfs_vget: ntfs_ntget failed\n");
return (error);
}
/* It may be not initialized fully, so force load it */
if (!(flags & VG_DONTLOADIN) && !(ip->i_flag & IN_LOADED)) {
error = ntfs_loadntnode(ntmp, ip);
if(error) {
printf("ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: %d\n",
ip->i_number);
ntfs_ntput(ip);
return (error);
}
}
error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp);
if (error) {
printf("ntfs_vget: ntfs_fget failed\n");
ntfs_ntput(ip);
return (error);
}
f_type = VNON;
if (!(flags & VG_DONTVALIDFN) && !(fp->f_flag & FN_VALID)) {
if ((ip->i_frflag & NTFS_FRFLAG_DIR) &&
(fp->f_attrtype == NTFS_A_DATA && fp->f_attrname == NULL)) {
f_type = VDIR;
} else if (flags & VG_EXT) {
f_type = VNON;
fp->f_size = fp->f_allocated = 0;
} else {
f_type = VREG;
error = ntfs_filesize(ntmp, fp,
&fp->f_size, &fp->f_allocated);
if (error) {
ntfs_ntput(ip);
return (error);
}
}
fp->f_flag |= FN_VALID;
}
if (FTOV(fp)) {
vget(FTOV(fp), lkflags, td);
*vpp = FTOV(fp);
ntfs_ntput(ip);
return (0);
}
error = getnewvnode("ntfs", ntmp->ntm_mountp, &ntfs_vnodeops, &vp);
if(error) {
ntfs_frele(fp);
ntfs_ntput(ip);
return (error);
}
/* XXX: Too early for mpsafe fs, lacks vnode lock */
error = insmntque(vp, ntmp->ntm_mountp);
if (error) {
ntfs_frele(fp);
ntfs_ntput(ip);
return (error);
}
dprintf(("ntfs_vget: vnode: %p for ntnode: %d\n", vp,ino));
fp->f_vp = vp;
vp->v_data = fp;
vp->v_type = f_type;
vp->v_bufobj.bo_ops = &ntfs_vnbufops;
vp->v_bufobj.bo_private = vp;
if (ino == NTFS_ROOTINO)
vp->v_vflag |= VV_ROOT;
ntfs_ntput(ip);
if (lkflags & LK_TYPE_MASK) {
error = vn_lock(vp, lkflags);
if (error) {
vput(vp);
return (error);
}
}
*vpp = vp;
return (0);
}
static int
ntfs_vget(
struct mount *mp,
ino_t ino,
int lkflags,
struct vnode **vpp)
{
return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL, lkflags, 0,
curthread, vpp);
}
static void
ntfs_bufstrategy(struct bufobj *bo, struct buf *bp)
{
struct vnode *vp;
int rc;
vp = bo->bo_private;
KASSERT(bo == &vp->v_bufobj, ("BO/VP mismatch: vp %p bo %p != %p",
vp, &vp->v_bufobj, bo));
rc = VOP_STRATEGY(vp, bp);
KASSERT(rc == 0, ("NTFS VOP_STRATEGY failed: bp=%p, "
"vp=%p, rc=%d", bp, vp, rc));
}
static struct vfsops ntfs_vfsops = {
.vfs_fhtovp = ntfs_fhtovp,
.vfs_init = ntfs_init,
.vfs_cmount = ntfs_cmount,
.vfs_mount = ntfs_mount,
.vfs_root = ntfs_root,
.vfs_statfs = ntfs_statfs,
.vfs_uninit = ntfs_uninit,
.vfs_unmount = ntfs_unmount,
.vfs_vget = ntfs_vget,
};
VFS_SET(ntfs_vfsops, ntfs, 0);
MODULE_VERSION(ntfs, 1);
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