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;
struct ntfsmount *ntmp;
struct ntnode *ip;
struct fnode *fp;
struct vnode *vp;
enum vtype f_type;
dprintf(("ntfs_vgetex: ino: %ju, attr: 0x%x:%s, lkf: 0x%lx, f: 0x%lx\n",
(uintmax_t) ino, attrtype, attrname?attrname:"", lkflags, flags));
ntmp = VFSTONTFS(mp);
*vpp = NULL;
/* Get ntnode */
error = ntfs_ntlookup(ntmp, ino, &ip);
if (error) {
kprintf("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) {
kprintf("ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: %"PRId64"\n",
ip->i_number);
ntfs_ntput(ip);
return (error);
}
}
error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp);
if (error) {
kprintf("ntfs_vget: ntfs_fget failed\n");
ntfs_ntput(ip);
return (error);
}
f_type = VINT;
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 = VINT;
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);
*vpp = FTOV(fp);
ntfs_ntput(ip);
return (0);
}
error = getnewvnode(VT_NTFS, ntmp->ntm_mountp, &vp, VLKTIMEOUT, 0);
if(error) {
ntfs_frele(fp);
ntfs_ntput(ip);
return (error);
}
dprintf(("ntfs_vget: vnode: %p for ntnode: %ju\n", vp, (uintmax_t)ino));
fp->f_vp = vp;
vp->v_data = fp;
vp->v_type = f_type;
if (ino == NTFS_ROOTINO)
vsetflags(vp, VROOT);
/*
* Normal files use the buffer cache
*/
if (f_type == VREG)
vinitvmio(vp, fp->f_size, PAGE_SIZE, -1);
ntfs_ntput(ip);
KKASSERT(lkflags & LK_TYPE_MASK);
/* XXX leave vnode locked exclusively from getnewvnode */
*vpp = vp;
return (0);
}
int
ntfs_vgetex(
struct mount *mp,
ino_t ino,
u_int32_t attrtype,
char *attrname,
u_long lkflags,
u_long flags,
struct vnode **vpp)
{
int error;
struct ntfsmount *ntmp;
struct ntnode *ip;
struct fnode *fp;
struct vnode *vp;
enum vtype f_type = VBAD;
dprintf(("ntfs_vgetex: ino: %llu, attr: 0x%x:%s, lkf: 0x%lx, f:"
" 0x%lx\n", (unsigned long long)ino, attrtype,
attrname ? attrname : "", (u_long)lkflags, (u_long)flags));
ntmp = VFSTONTFS(mp);
*vpp = NULL;
loop:
/* 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:"
" %llu\n", (unsigned long long)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);
}
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;
}
/*
* We may be calling vget() now. To avoid potential deadlock, we need
* to release ntnode lock, since due to locking order vnode
* lock has to be acquired first.
* ntfs_fget() bumped ntnode usecount, so ntnode won't be recycled
* prematurely.
* Take v_interlock before releasing ntnode lock to avoid races.
*/
vp = FTOV(fp);
if (vp) {
mutex_enter(vp->v_interlock);
ntfs_ntput(ip);
if (vget(vp, lkflags) != 0)
goto loop;
*vpp = vp;
return 0;
}
ntfs_ntput(ip);
error = getnewvnode(VT_NTFS, ntmp->ntm_mountp, ntfs_vnodeop_p,
NULL, &vp);
if(error) {
ntfs_frele(fp);
return (error);
}
ntfs_ntget(ip);
error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp);
if (error) {
printf("ntfs_vget: ntfs_fget failed\n");
ntfs_ntput(ip);
return (error);
}
if (FTOV(fp)) {
/*
* Another thread beat us, put back freshly allocated
* vnode and retry.
*/
ntfs_ntput(ip);
ungetnewvnode(vp);
goto loop;
}
dprintf(("ntfs_vget: vnode: %p for ntnode: %llu\n", vp,
(unsigned long long)ino));
fp->f_vp = vp;
vp->v_data = fp;
if (f_type != VBAD)
vp->v_type = f_type;
genfs_node_init(vp, &ntfs_genfsops);
if (ino == NTFS_ROOTINO)
vp->v_vflag |= VV_ROOT;
ntfs_ntput(ip);
if (lkflags & (LK_EXCLUSIVE | LK_SHARED)) {
error = vn_lock(vp, lkflags);
if (error) {
vput(vp);
return (error);
}
}
uvm_vnp_setsize(vp, fp->f_size); /* XXX: mess, cf. ntfs_lookupfile() */
vref(ip->i_devvp);
*vpp = vp;
return (0);
}