/*
* Unhook an attribute directory from a parent file/dir
* Only do so, if we are the only user of the vnode.
*/
void
ufs_unhook_shadow(struct inode *ip, struct inode *sip)
{
struct vnode *datavp = ITOV(ip);
struct vnode *dirvp = ITOV(sip);
int hno;
kmutex_t *ihm;
ASSERT(RW_WRITE_HELD(&sip->i_contents));
ASSERT(RW_WRITE_HELD(&ip->i_contents));
if (vn_is_readonly(ITOV(ip)))
return;
if (ip->i_ufsvfs == NULL || sip->i_ufsvfs == NULL)
return;
hno = INOHASH(ip->i_number);
ihm = &ih_lock[hno];
mutex_enter(ihm);
mutex_enter(&datavp->v_lock);
mutex_enter(&dirvp->v_lock);
if (dirvp->v_count != 1 && datavp->v_count != 1) {
mutex_exit(&dirvp->v_lock);
mutex_exit(&datavp->v_lock);
mutex_exit(ihm);
return;
}
/*
* Delete shadow from ip
*/
sip->i_nlink -= 2;
ufs_setreclaim(sip);
TRANS_INODE(sip->i_ufsvfs, sip);
sip->i_flag |= ICHG;
sip->i_seq++;
ITIMES_NOLOCK(sip);
/*
* Update src file
*/
ip->i_oeftflag = 0;
TRANS_INODE(ip->i_ufsvfs, ip);
ip->i_flag |= ICHG;
ip->i_seq++;
ufs_iupdat(ip, 1);
mutex_exit(&dirvp->v_lock);
mutex_exit(&datavp->v_lock);
mutex_exit(ihm);
}
int
ufs_mark_compressed(struct vnode *vp)
{
struct inode *ip = VTOI(vp);
struct ufsvfs *ufsvfsp = ip->i_ufsvfs;
if (vp->v_type != VREG)
return (EINVAL);
rw_enter(&ip->i_contents, RW_WRITER);
ip->i_cflags |= ICOMPRESS;
TRANS_INODE(ufsvfsp, ip);
ip->i_flag |= (ICHG|ISEQ);
ip->i_seq++;
if (!TRANS_ISTRANS(ufsvfsp))
ufs_iupdat(ip, I_ASYNC);
rw_exit(&ip->i_contents);
return (0);
}
