FreeBSD-5.3/sys/fs/ntfs/ntfs_vfsops.c
/* $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: src/sys/fs/ntfs/ntfs_vfsops.c,v 1.61 2004/07/30 22:08:50 phk Exp $
*/
#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/systm.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>
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 ntfs_args *, struct thread *);
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_omount_t ntfs_omount;
static vfs_root_t ntfs_root;
static vfs_statfs_t ntfs_statfs;
static vfs_unmount_t ntfs_unmount;
static vfs_vptofh_t ntfs_vptofh;
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_omount (
struct mount *mp,
char *path,
caddr_t data,
struct thread *td )
{
size_t size;
int err = 0;
struct vnode *devvp, *rootvp;
struct ntfs_args args;
struct nameidata ndp;
/*
* Use NULL path to flag a root mount
*/
if( path == NULL) {
/*
***
* Mounting root filesystem
***
*/
/* Get vnode for root device*/
if( bdevvp( rootdev, &rootvp))
panic("ntfs_mountroot: can't setup bdevvp for root");
/*
* FS specific handling
*/
mp->mnt_flag |= MNT_RDONLY; /* XXX globally applicable?*/
/*
* Attempt mount
*/
if( ( err = ntfs_mountfs(rootvp, mp, &args, td)) != 0) {
/* fs specific cleanup (if any)*/
goto error_1;
}
goto dostatfs; /* success*/
}
/*
***
* Mounting non-root filesystem or updating a filesystem
***
*/
/* copy in user arguments*/
err = copyin(data, (caddr_t)&args, sizeof (struct ntfs_args));
if (err)
goto error_1; /* can't get arguments*/
/*
* If updating, check whether changing from read-only to
* read/write; if there is no device name, that's all we do.
*/
if (mp->mnt_flag & MNT_UPDATE) {
/* if not updating name...*/
if (args.fspec == 0) {
/*
* Process export requests. Jumping to "success"
* will return the vfs_export() error code.
*/
err = vfs_export(mp, &args.export);
goto success;
}
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, UIO_USERSPACE, args.fspec, 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))
goto error_2;
if (mp->mnt_flag & MNT_UPDATE) {
#if 0
/*
********************
* UPDATE
********************
*/
if (devvp != ntmp->um_devvp)
err = EINVAL; /* needs translation */
else
vrele(devvp);
/*
* Update device name only on success
*/
if( !err) {
/* Save "mounted from" info for mount point (NULL pad)*/
copyinstr( args.fspec,
mp->mnt_stat.f_mntfromname,
MNAMELEN - 1,
&size);
bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size);
}
#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)*/
copyinstr( args.fspec, /* device name*/
mp->mnt_stat.f_mntfromname, /* save area*/
MNAMELEN - 1, /* max size*/
&size); /* real size*/
bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size);
err = ntfs_mountfs(devvp, mp, &args, td);
}
if (err) {
goto error_2;
}
dostatfs:
/*
* Initialize FS stat information in mount struct; uses both
* mp->mnt_stat.f_mntonname and mp->mnt_stat.f_mntfromname
*
* This code is common to root and non-root mounts
*/
(void)VFS_STATFS(mp, &mp->mnt_stat, td);
goto success;
error_2: /* error with devvp held*/
/* release devvp before failing*/
vrele(devvp);
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, argsp, td)
register struct vnode *devvp;
struct mount *mp;
struct ntfs_args *argsp;
struct thread *td;
{
struct buf *bp;
struct ntfsmount *ntmp;
struct cdev *dev = devvp->v_rdev;
int error, ronly, ncount, i;
struct vnode *vp;
/*
* Disallow multiple mounts of the same device.
* Disallow mounting of a device that is currently in use
* (except for root, which might share swap device for miniroot).
* Flush out any old buffers remaining from a previous use.
*/
error = vfs_mountedon(devvp);
if (error)
return (error);
ncount = vcount(devvp);
if (devvp->v_object)
ncount -= 1;
if (ncount > 1)
return (EBUSY);
vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY, td);
error = vinvalbuf(devvp, V_SAVE, td->td_ucred, td, 0, 0);
VOP_UNLOCK(devvp, 0, td);
if (error)
return (error);
ronly = (mp->mnt_flag & MNT_RDONLY) != 0;
vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY, td);
error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, td, -1);
VOP_UNLOCK(devvp, 0, td);
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(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_dev = dev;
ntmp->ntm_devvp = devvp;
ntmp->ntm_uid = argsp->uid;
ntmp->ntm_gid = argsp->gid;
ntmp->ntm_mode = argsp->mode;
ntmp->ntm_flag = argsp->flag;
/* Copy in the 8-bit to Unicode conversion table */
/* Initialize Unicode to 8-bit table from 8toU table */
if (argsp->flag & NTFS_MFLAG_KICONV) {
ntfs_82u_init(ntmp, argsp->cs_local, argsp->cs_ntfs);
ntfs_u28_init(ntmp, NULL, argsp->cs_local, argsp->cs_ntfs);
} else {
ntfs_82u_init(ntmp, NULL, NULL);
ntfs_u28_init(ntmp, ntmp->ntm_82u, NULL, NULL);
}
mp->mnt_data = (qaddr_t)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;
mp->mnt_flag |= MNT_LOCAL;
devvp->v_rdev->si_mountpoint = 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:
devvp->v_rdev->si_mountpoint = NULL;
if (bp)
brelse(bp);
(void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, NOCRED, td);
return (error);
}
static int
ntfs_unmount(
struct mount *mp,
int mntflags,
struct thread *td)
{
struct ntfsmount *ntmp;
int error, ronly, 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);
/* Check if the type of device node isn't VBAD before
* touching v_cdev. If the device vnode is revoked, the
* field is NULL and touching it causes null pointer derefercence.
*/
if (ntmp->ntm_devvp->v_type != VBAD)
ntmp->ntm_devvp->v_rdev->si_mountpoint = NULL;
vinvalbuf(ntmp->ntm_devvp, V_SAVE, NOCRED, td, 0, 0);
ronly = (mp->mnt_flag & MNT_RDONLY) != 0;
error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE,
NOCRED, td);
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 = (qaddr_t)0;
mp->mnt_flag &= ~MNT_LOCAL;
FREE(ntmp->ntm_ad, M_NTFSMNT);
FREE(ntmp, M_NTFSMNT);
return (error);
}
static int
ntfs_root(
struct mount *mp,
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);
}
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;
if (sbp != &mp->mnt_stat) {
bcopy((caddr_t)mp->mnt_stat.f_mntonname,
(caddr_t)&sbp->f_mntonname[0], MNAMELEN);
bcopy((caddr_t)mp->mnt_stat.f_mntfromname,
(caddr_t)&sbp->f_mntfromname[0], MNAMELEN);
}
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;
return (0);
}
static int
ntfs_vptofh(
struct vnode *vp,
struct fid *fhp)
{
register struct ntnode *ntp;
register struct ntfid *ntfhp;
ddprintf(("ntfs_fhtovp(): %p\n", vp));
ntp = VTONT(vp);
ntfhp = (struct ntfid *)fhp;
ntfhp->ntfid_len = sizeof(struct ntfid);
ntfhp->ntfid_ino = ntp->i_number;
/* ntfhp->ntfid_gen = ntp->i_gen; */
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_vnodeop_p, &vp);
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;
if (ino == NTFS_ROOTINO)
vp->v_vflag |= VV_ROOT;
ntfs_ntput(ip);
if (lkflags & LK_TYPE_MASK) {
error = vn_lock(vp, lkflags, td);
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 struct vfsops ntfs_vfsops = {
.vfs_fhtovp = ntfs_fhtovp,
.vfs_init = ntfs_init,
.vfs_omount = ntfs_omount,
.vfs_root = ntfs_root,
.vfs_statfs = ntfs_statfs,
.vfs_uninit = ntfs_uninit,
.vfs_unmount = ntfs_unmount,
.vfs_vget = ntfs_vget,
.vfs_vptofh = ntfs_vptofh,
};
VFS_SET(ntfs_vfsops, ntfs, 0);
MODULE_VERSION(ntfs, 1);