/*ARGSUSED*/
static int
xmem_setattr(struct vnode *vp, struct vattr *vap, int flags, struct cred *cred,
caller_context_t *ct)
{
struct xmount *xm = (struct xmount *)VTOXM(vp);
struct xmemnode *xp = (struct xmemnode *)VTOXN(vp);
int error;
struct vattr *get;
register long int mask = vap->va_mask;
/*
* Cannot set these attributes
*/
if (mask & AT_NOSET)
return (EINVAL);
mutex_enter(&xp->xn_tlock);
get = &xp->xn_attr;
error = secpolicy_vnode_setattr(cred, vp, vap, get, flags,
xmem_xaccess, xp);
if (error != 0)
goto out;
mask = vap->va_mask;
/*
* Change file access modes.
*/
if (mask & AT_MODE) {
/* prevent execute permission to be set for regular files */
if (S_ISREG(get->va_mode))
vap->va_mode &= ~(S_IXUSR | S_IXGRP | S_IXOTH);
XMEMPRINTF(1, ("xmem_setattr: va_mode old %x new %x\n",
get->va_mode, vap->va_mode));
get->va_mode &= S_IFMT;
get->va_mode |= vap->va_mode & ~S_IFMT;
}
if (mask & AT_UID)
get->va_uid = vap->va_uid;
if (mask & AT_GID)
get->va_gid = vap->va_gid;
if (mask & AT_ATIME)
get->va_atime = vap->va_atime;
if (mask & AT_MTIME)
get->va_mtime = vap->va_mtime;
if (mask & (AT_UID | AT_GID | AT_MODE | AT_MTIME))
gethrestime(&get->va_ctime);
if (mask & AT_SIZE) {
if (vp->v_type == VDIR) {
error = EISDIR;
goto out;
}
/* Don't support large files. */
if (vap->va_size > MAXOFF_T) {
error = EFBIG;
goto out;
}
if (error = xmem_xaccess(xp, VWRITE, cred))
goto out;
mutex_exit(&xp->xn_tlock);
rw_enter(&xp->xn_rwlock, RW_WRITER);
rw_enter(&xp->xn_contents, RW_WRITER);
error = xmemnode_trunc(xm, xp, vap->va_size);
rw_exit(&xp->xn_contents);
rw_exit(&xp->xn_rwlock);
goto out1;
}
out:
mutex_exit(&xp->xn_tlock);
out1:
return (error);
}
int /* ERRNO if error, 0 if successful. */
sam_setattr_ino(
sam_node_t *ip, /* pointer to inode. */
vattr_t *vap, /* vattr pointer. */
int flags, /* flags. */
cred_t *credp) /* credentials pointer. */
{
uint_t mask;
int error = 0;
vnode_t *vp;
sam_mode_t oldmode, mode;
timespec_t system_time;
vattr_t oldva;
oldva.va_mode = ip->di.mode;
oldva.va_uid = ip->di.uid;
oldva.va_gid = ip->di.gid;
vp = SAM_ITOV(ip);
if (vap->va_mask & AT_NOSET) {
return (EINVAL);
}
mode = vap->va_mode & ~S_IFMT;
SAM_HRESTIME(&system_time);
/*
* Enforce the "read only" portion of WORM files.
*/
if (ip->di.status.b.worm_rdonly && !S_ISDIR(ip->di.mode)) {
error = sam_chk_worm(mode, vap->va_mask, ip);
if (error) {
return (error);
}
}
/*
* Generic setattr security policy check.
*/
if (error = secpolicy_vnode_setattr(credp, vp, vap,
&oldva, flags, sam_access_ino_ul, ip)) {
return (error);
}
mask = vap->va_mask;
if (mask & AT_SIZE) { /* -----Change size */
if (error == 0) {
/* Can only truncate a regular file */
if (S_ISREQ(ip->di.mode)) {
error = EINVAL;
goto out;
} else if (SAM_PRIVILEGE_INO(ip->di.version,
ip->di.id.ino)) {
error = EPERM; /* Can't trunc priv'ed inodes */
goto out;
}
if (S_ISSEGI(&ip->di) && (vap->va_size != 0)) {
/*
* If file is segment access and not truncating
* to zero--fix.
*/
error = EINVAL;
goto out;
}
/*
* Might need to do TRANS_ITRUNC here for LQFS....
*/
if ((error = sam_clear_ino(ip, (offset_t)vap->va_size,
STALE_ARCHIVE, credp))) {
goto out;
}
}
}
if (mask & AT_MODE) { /* -----Change mode */
/* Cannot change .inodes file */
if (ip->di.id.ino == SAM_INO_INO) {
error = EPERM;
goto out;
}
oldmode = ip->di.mode;
ip->di.mode &= S_IFMT;
ip->di.mode |= vap->va_mode & ~S_IFMT;
if (ip->di.status.b.worm_rdonly) {
if (!S_ISDIR(ip->di.mode)) {
ip->di.mode &= ~WMASK;
}
if (oldmode & S_ISUID) {
ip->di.mode |= S_ISUID;
}
}
/*
* In 4.6 there are two modes of WORM trigger operation.
* One is compatible with the 53xx SUN NAS series. This
* mode uses the SUID bit by itself. The second mode is
* called compatibility mode. This mode uses the transition
* from a writeable mode as the trigger. Note, copying a
* read-only file to a WORM capable volume does *NOT*
* initiate the WORM trigger in this mode.
*/
if (samgt.license.license.lic_u.b.WORM_fs &&
(ip->di.version >= SAM_INODE_VERS_2) &&
(((vap->va_mode == S_ISUID) &&
(ip->mp->mt.fi_config & MT_ALLWORM)) ||
((ip->mp->mt.fi_config & MT_ALLEMUL) &&
(((oldmode & RWXALLMASK) == RWXALLMASK) ||
((vap->va_mode != S_ISUID) &&
(oldmode & WMASK) && !(ip->di.mode & WMASK)))))) {
error = sam_worm_trigger(ip, oldmode, system_time);
if (error) {
ip->di.mode = oldmode;
goto out;
} else if ((ip->mp->mt.fi_config & MT_ALLEMUL) &&
((oldmode & RWXALLMASK) == RWXALLMASK)) {
ip->di.mode = oldmode;
} else if ((vap->va_mode == S_ISUID) &&
(!S_ISDIR(ip->di.mode))) {
if (ip->mp->mt.fi_config & MT_ALLEMUL) {
ip->di.mode = oldmode &
(S_IFMT | RMASK);
} else {
ip->di.mode = S_ISUID |
(oldmode & (S_IFMT | RMASK));
}
}
}
TRANS_INODE(ip->mp, ip);
if (S_ISATTRDIR(oldmode)) {
ip->di.mode |= S_IFATTRDIR;
}
sam_mark_ino(ip, SAM_CHANGED);
}
if (mask & (AT_UID | AT_GID)) { /* -----Change uid/gid */
int ouid, ogid;
if (vap->va_mask & AT_MODE) {
ip->di.mode = (ip->di.mode & S_IFMT) |
(vap->va_mode & ~S_IFMT);
}
/*
* To change file ownership, a process must have
* privilege if:
*
* If it is not the owner of the file, or
* if doing restricted chown semantics and
* either changing the ownership to someone else or
* changing the group to a group that we are not
* currently in.
*/
if (crgetuid(credp) != ip->di.uid ||
(rstchown &&
(((mask & AT_UID) && vap->va_uid != ip->di.uid) ||
((mask & AT_GID) && !groupmember(vap->va_gid, credp))))) {
error = secpolicy_vnode_owner(credp, vap->va_uid);
if (error) {
goto out;
}
}
ouid = ip->di.uid;
ogid = ip->di.gid;
if (error = sam_quota_chown(ip->mp, ip,
(mask&AT_UID) ? vap->va_uid : ouid,
(mask&AT_GID) ? vap->va_gid : ogid, credp)) {
goto out;
}
if (mask & AT_UID) ip->di.uid = vap->va_uid;
if (mask & AT_GID) ip->di.gid = vap->va_gid;
ip->di.status.b.archdone = 0;
TRANS_INODE(ip->mp, ip);
sam_mark_ino(ip, SAM_CHANGED);
/*
* Notify arfind and event daemon of setattr.
*/
sam_send_to_arfind(ip, AE_change, 0);
if (ip->mp->ms.m_fsev_buf) {
sam_send_event(ip->mp, &ip->di, ev_change, 0, 0,
ip->di.change_time.tv_sec);
}
}
if (mask & (AT_ATIME | AT_MTIME)) { /* -----Modify times */
/*
* Synchronously flush pages so dates do not get changed after
* utime. If staging, finish stage and then flush pages.
*/
if (ip->flags.b.staging) {
/*
* Might need to do TRANS_ITRUNC or similar here
* for LQFS
*/
if ((error = sam_clear_file(ip, ip->di.rm.size,
MAKE_ONLINE, credp))) {
goto out;
}
}
sam_flush_pages(ip, 0);
if (mask & AT_ATIME) {
/*
* The access time field is used by WORM operations to
* store the retention timestamp. This is intercepted
* here and stored in the inode's retention period
* time fields if either the field hasn't been set or
* the provided value exceeds what is currently there
* (i.e. we're extending the period).
*/
error = sam_check_worm_capable(ip, TRUE);
if (!error) {
boolean_t lite_mode =
((ip->mp->mt.fi_config &
MT_LITE_WORM) != 0);
boolean_t is_priv =
(secpolicy_fs_config(credp,
ip->mp->mi.m_vfsp) == 0);
if (S_ISREG(ip->di.mode) && !WORM(ip)) {
/*
* Regular file in WORM capable
* directory. Set access time per the
* request.
*/
ip->di.access_time.tv_sec =
vap->va_atime.tv_sec;
ip->di.access_time.tv_nsec =
vap->va_atime.tv_nsec;
ip->flags.b.accessed = 1;
} else if (WORM(ip) &&
(ip->di.version >= SAM_INODE_VERS_2)) {
boolean_t extend_period;
/*
* Extend the retention period if so
* requested. If lite mode and a
* privileged user or a directory allow
* the retention period to be shortened.
*/
if (vap->va_atime.tv_sec >
ip->di2.rperiod_start_time +
ip->di2.rperiod_duration * 60) {
extend_period = 1;
} else {
extend_period = 0;
}
if (S_ISREG(ip->di.mode) &&
extend_period) {
error = sam_set_rperiod(ip,
vap, is_priv &&
lite_mode);
} else if (S_ISDIR(ip->di.mode) ||
(S_ISREG(ip->di.mode) &&
is_priv && lite_mode)) {
/*
* If the requested time would
* result in a non- negative
* retention period, set the
* period to the difference of
* the request and current time.
* A negative retention period
* is not allowed.
*/
if (vap->va_atime.tv_sec >
system_time.tv_sec) {
if (vap->va_atime.tv_sec == INT_MAX) {
ip->di2.rperiod_duration = 0;
} else {
ip->di2.rperiod_duration = 1 +
(vap->va_atime.tv_sec -
system_time.tv_sec)/60;
}
} else {
error = EINVAL;
}
}
if (error) {
goto out;
}
} else {
/*
* Shouldn't get here, invalid request.
*/
error = EINVAL;
goto out;
}
TRANS_INODE(ip->mp, ip);
sam_mark_ino(ip, SAM_CHANGED);
} else {
error = 0;
ip->di.access_time.tv_sec =
vap->va_atime.tv_sec;
ip->di.access_time.tv_nsec =
vap->va_atime.tv_nsec;
ip->flags.b.accessed = 1;
TRANS_INODE(ip->mp, ip);
}
}
if (mask & AT_MTIME) {
if (!ip->di.status.b.worm_rdonly) {
ip->di.modify_time.tv_sec =
vap->va_mtime.tv_sec;
ip->di.modify_time.tv_nsec =
vap->va_mtime.tv_nsec;
ip->di.change_time.tv_sec = system_time.tv_sec;
ip->di.change_time.tv_nsec =
system_time.tv_nsec;
ip->flags.b.updated = 1;
/* Modify time has been set */
ip->flags.b.dirty = 1;
}
TRANS_INODE(ip->mp, ip);
}
}
/*
* Check for and apply ACL info, if present.
*/
if (ip->di.status.b.acl && !ip->di.status.b.worm_rdonly) {
if (SAM_IS_SHARED_FS(ip->mp) && SAM_IS_SHARED_SERVER(ip->mp)) {
RW_UNLOCK_OS(&ip->inode_rwl, RW_WRITER);
sam_callout_acl(ip, ip->mp->ms.m_client_ord);
RW_LOCK_OS(&ip->inode_rwl, RW_WRITER);
}
if (error = sam_acl_setattr(ip, vap)) {
goto out;
}
}
if (ip->mp->mt.fi_config & MT_SHARED_WRITER) {
if ((error == 0) &&
(ip->flags.bits & (SAM_ACCESSED|SAM_UPDATED|SAM_CHANGED))) {
(void) sam_update_inode(ip, SAM_SYNC_ONE, FALSE);
}
}
out:
return (error);
}
/*ARGSUSED4*/
static int
devfs_setattr(
struct vnode *vp,
struct vattr *vap,
int flags,
struct cred *cr,
caller_context_t *ct)
{
struct dv_node *dv = VTODV(vp);
struct dv_node *ddv;
struct vnode *dvp;
struct vattr *map;
long int mask;
int error = 0;
struct vattr *free_vattr = NULL;
struct vattr *vattrp = NULL;
mperm_t mp;
int persist;
/*
* Message goes to console only. Otherwise, the message
* causes devfs_getattr to be invoked again... infinite loop
*/
dcmn_err2(("?devfs_setattr %s\n", dv->dv_name));
ASSERT(dv->dv_attr || dv->dv_attrvp);
if (!(vp->v_type == VDIR || vp->v_type == VCHR || vp->v_type == VBLK)) {
cmn_err(CE_WARN, /* panic ? */
"?%s: getattr on vnode type %d", dvnm, vp->v_type);
return (ENOENT);
}
if (vap->va_mask & AT_NOSET)
return (EINVAL);
/*
* If we are changing something we don't care about
* the persistence of, return success.
*/
if ((vap->va_mask &
(AT_MODE|AT_UID|AT_GID|AT_ATIME|AT_MTIME)) == 0)
return (0);
/*
* If driver overrides fs perm, disallow chmod
* and do not create attribute nodes.
*/
if (dv->dv_flags & DV_NO_FSPERM) {
ASSERT(dv->dv_attr);
if (vap->va_mask & (AT_MODE | AT_UID | AT_GID))
return (EPERM);
if ((vap->va_mask & (AT_ATIME|AT_MTIME)) == 0)
return (0);
rw_enter(&dv->dv_contents, RW_WRITER);
if (vap->va_mask & AT_ATIME)
dv->dv_attr->va_atime = vap->va_atime;
if (vap->va_mask & AT_MTIME)
dv->dv_attr->va_mtime = vap->va_mtime;
rw_exit(&dv->dv_contents);
return (0);
}
/*
* Directories are always created but device nodes are
* only used to persist non-default permissions.
*/
if (vp->v_type == VDIR) {
ASSERT(dv->dv_attr || dv->dv_attrvp);
return (devfs_setattr_dir(dv, vp, vap, flags, cr));
}
/*
* Allocate now before we take any locks
*/
vattrp = kmem_zalloc(sizeof (*vattrp), KM_SLEEP);
/* to ensure consistency, single thread setting of attributes */
rw_enter(&dv->dv_contents, RW_WRITER);
/*
* We don't need to create an attribute node
* to persist access or modification times.
*/
persist = (vap->va_mask & (AT_MODE | AT_UID | AT_GID));
/*
* If persisting something, get the default permissions
* for this minor to compare against what the attributes
* are now being set to. Default ordering is:
* - minor_perm match for this minor
* - mode supplied by ddi_create_priv_minor_node
* - devfs defaults
*/
if (persist) {
if (dev_minorperm(dv->dv_devi, dv->dv_name, &mp) != 0) {
mp.mp_uid = dv_vattr_file.va_uid;
mp.mp_gid = dv_vattr_file.va_gid;
mp.mp_mode = dv_vattr_file.va_mode;
if (dv->dv_flags & DV_DFLT_MODE) {
ASSERT((dv->dv_dflt_mode & ~S_IAMB) == 0);
mp.mp_mode &= ~S_IAMB;
mp.mp_mode |= dv->dv_dflt_mode;
dcmn_err5(("%s: setattr priv default 0%o\n",
dv->dv_name, mp.mp_mode));
} else {
dcmn_err5(("%s: setattr devfs default 0%o\n",
dv->dv_name, mp.mp_mode));
}
} else {
dcmn_err5(("%s: setattr minor perm default 0%o\n",
dv->dv_name, mp.mp_mode));
}
}
/*
* If we don't have a vattr for this node, construct one.
*/
if (dv->dv_attr) {
free_vattr = vattrp;
vattrp = NULL;
} else {
ASSERT(dv->dv_attrvp);
ASSERT(vp->v_type != VDIR);
*vattrp = dv_vattr_file;
error = VOP_GETATTR(dv->dv_attrvp, vattrp, 0, cr);
dsysdebug(error, ("vop_getattr %s %d\n",
dv->dv_name, error));
if (error)
goto out;
dv->dv_attr = vattrp;
dv_vattr_merge(dv, dv->dv_attr);
vattrp = NULL;
}
error = secpolicy_vnode_setattr(cr, vp, vap, dv->dv_attr,
flags, devfs_unlocked_access, dv);
if (error) {
dsysdebug(error, ("devfs_setattr %s secpolicy error %d\n",
dv->dv_name, error));
goto out;
}
/*
* Apply changes to the memory based attribute. This code
* is modeled after the tmpfs implementation of memory
* based vnodes
*/
map = dv->dv_attr;
mask = vap->va_mask;
/* Change file access modes. */
if (mask & AT_MODE) {
map->va_mode &= S_IFMT;
map->va_mode |= vap->va_mode & ~S_IFMT;
}
if (mask & AT_UID)
map->va_uid = vap->va_uid;
if (mask & AT_GID)
map->va_gid = vap->va_gid;
if (mask & AT_ATIME)
map->va_atime = vap->va_atime;
if (mask & AT_MTIME)
map->va_mtime = vap->va_mtime;
if (mask & (AT_MODE | AT_UID | AT_GID | AT_MTIME)) {
gethrestime(&map->va_ctime);
}
/*
* A setattr to defaults means we no longer need the
* shadow node as a persistent store, unless there
* are ACLs. Otherwise create a shadow node if one
* doesn't exist yet.
*/
if (persist) {
if ((dv_setattr_cmp(map, &mp) == 0) &&
((dv->dv_flags & DV_ACL) == 0)) {
if (dv->dv_attrvp) {
ddv = dv->dv_dotdot;
ASSERT(ddv->dv_attrvp);
error = VOP_REMOVE(ddv->dv_attrvp,
dv->dv_name, cr);
dsysdebug(error,
("vop_remove %s %s %d\n",
ddv->dv_name, dv->dv_name, error));
if (error == EROFS)
error = 0;
VN_RELE(dv->dv_attrvp);
dv->dv_attrvp = NULL;
}
ASSERT(dv->dv_attr);
} else {
if (mask & AT_MODE)
dcmn_err5(("%s persisting mode 0%o\n",
dv->dv_name, vap->va_mode));
if (mask & AT_UID)
dcmn_err5(("%s persisting uid %d\n",
dv->dv_name, vap->va_uid));
if (mask & AT_GID)
dcmn_err5(("%s persisting gid %d\n",
dv->dv_name, vap->va_gid));
if (dv->dv_attrvp == NULL) {
dvp = DVTOV(dv->dv_dotdot);
dv_shadow_node(dvp, dv->dv_name, vp,
NULL, NULLVP, cr,
DV_SHADOW_CREATE | DV_SHADOW_WRITE_HELD);
}
if (dv->dv_attrvp) {
error = VOP_SETATTR(dv->dv_attrvp,
vap, flags, cr, NULL);
dsysdebug(error, ("vop_setattr %s %d\n",
dv->dv_name, error));
}
/*
* Some file systems may return EROFS for a setattr
* on a readonly file system. In this case save
* as our own memory based attribute.
* NOTE: ufs is NOT one of these (see ufs_iupdat).
*/
if (dv->dv_attr && dv->dv_attrvp && error == 0) {
vattrp = dv->dv_attr;
dv->dv_attr = NULL;
} else if (error == EROFS)
error = 0;
}
}
out:
rw_exit(&dv->dv_contents);
if (vattrp)
kmem_free(vattrp, sizeof (*vattrp));
if (free_vattr)
kmem_free(free_vattr, sizeof (*free_vattr));
return (error);
}
/* ARGSUSED */
static int
nm_setattr(
vnode_t *vp,
vattr_t *vap,
int flags,
cred_t *crp,
caller_context_t *ctp)
{
struct namenode *nodep = VTONM(vp);
struct vattr *nmvap = &nodep->nm_vattr;
long mask = vap->va_mask;
int error = 0;
/*
* Cannot set these attributes.
*/
if (mask & (AT_NOSET|AT_SIZE))
return (EINVAL);
(void) VOP_RWLOCK(nodep->nm_filevp, V_WRITELOCK_TRUE, ctp);
mutex_enter(&nodep->nm_lock);
/*
* Change ownership/group/time/access mode of mounted file
* descriptor.
*/
error = secpolicy_vnode_setattr(crp, vp, vap, nmvap, flags,
nm_access_unlocked, nodep);
if (error)
goto out;
mask = vap->va_mask;
/*
* If request to change mode, copy new
* mode into existing attribute structure.
*/
if (mask & AT_MODE)
nmvap->va_mode = vap->va_mode & ~VSVTX;
/*
* If request was to change user or group, turn off suid and sgid
* bits.
* If the system was configured with the "rstchown" option, the
* owner is not permitted to give away the file, and can change
* the group id only to a group of which he or she is a member.
*/
if (mask & AT_UID)
nmvap->va_uid = vap->va_uid;
if (mask & AT_GID)
nmvap->va_gid = vap->va_gid;
/*
* If request is to modify times, make sure user has write
* permissions on the file.
*/
if (mask & AT_ATIME)
nmvap->va_atime = vap->va_atime;
if (mask & AT_MTIME) {
nmvap->va_mtime = vap->va_mtime;
gethrestime(&nmvap->va_ctime);
}
out:
mutex_exit(&nodep->nm_lock);
VOP_RWUNLOCK(nodep->nm_filevp, V_WRITELOCK_TRUE, ctp);
return (error);
}
/*ARGSUSED4*/
static int
devfs_setattr_dir(
struct dv_node *dv,
struct vnode *vp,
struct vattr *vap,
int flags,
struct cred *cr)
{
struct vattr *map;
long int mask;
int error = 0;
struct vattr vattr;
ASSERT(dv->dv_attr || dv->dv_attrvp);
ASSERT(vp->v_type == VDIR);
ASSERT((dv->dv_flags & DV_NO_FSPERM) == 0);
if (vap->va_mask & AT_NOSET)
return (EINVAL);
/* to ensure consistency, single thread setting of attributes */
rw_enter(&dv->dv_contents, RW_WRITER);
again: if (dv->dv_attr) {
error = secpolicy_vnode_setattr(cr, vp, vap, dv->dv_attr,
flags, devfs_unlocked_access, dv);
if (error)
goto out;
/*
* Apply changes to the memory based attribute. This code
* is modeled after the tmpfs implementation of memory
* based vnodes
*/
map = dv->dv_attr;
mask = vap->va_mask;
/* Change file access modes. */
if (mask & AT_MODE) {
map->va_mode &= S_IFMT;
map->va_mode |= vap->va_mode & ~S_IFMT;
}
if (mask & AT_UID)
map->va_uid = vap->va_uid;
if (mask & AT_GID)
map->va_gid = vap->va_gid;
if (mask & AT_ATIME)
map->va_atime = vap->va_atime;
if (mask & AT_MTIME)
map->va_mtime = vap->va_mtime;
if (mask & (AT_MODE | AT_UID | AT_GID | AT_MTIME))
gethrestime(&map->va_ctime);
} else {
/* use the backing attribute store */
ASSERT(dv->dv_attrvp);
/*
* See if we are changing something we care about
* the persistence of - return success if we don't care.
*/
if (vap->va_mask & (AT_MODE|AT_UID|AT_GID|AT_ATIME|AT_MTIME)) {
/* Set the attributes */
error = VOP_SETATTR(dv->dv_attrvp,
vap, flags, cr, NULL);
dsysdebug(error,
("vop_setattr %s %d\n", dv->dv_name, error));
/*
* Some file systems may return EROFS for a setattr
* on a readonly file system. In this case we create
* our own memory based attribute.
*/
if (error == EROFS) {
/*
* obtain attributes from existing file
* that we will modify and switch to memory
* based attribute until attribute store is
* read/write.
*/
vattr = dv_vattr_dir;
if (VOP_GETATTR(dv->dv_attrvp, &vattr,
flags, cr) == 0) {
dv->dv_attr = kmem_alloc(
sizeof (struct vattr), KM_SLEEP);
*dv->dv_attr = vattr;
dv_vattr_merge(dv, dv->dv_attr);
goto again;
}
}
}
}
out:
rw_exit(&dv->dv_contents);
return (error);
}
