static int
puffs_vnop_link(struct vop_nlink_args *ap)
{
PUFFS_MSG_VARS(vn, link);
struct vnode *dvp = ap->a_dvp;
struct vnode *vp = ap->a_vp;
struct puffs_node *dpn = VPTOPP(dvp);
struct puffs_node *pn = VPTOPP(vp);
struct puffs_mount *pmp = MPTOPUFFSMP(dvp->v_mount);
struct nchandle *nch = ap->a_nch;
struct namecache *ncp = nch->ncp;
struct ucred *cred = ap->a_cred;
int error;
if (!EXISTSOP(pmp, LINK))
return EOPNOTSUPP;
if (vp->v_mount != dvp->v_mount)
return EXDEV;
if ((error = vget(dvp, LK_EXCLUSIVE)) != 0) {
DPRINTF(("puffs_vnop_link: EAGAIN on ncp %p %s\n",
ncp, ncp->nc_name));
return EAGAIN;
}
PUFFS_MSG_ALLOC(vn, link);
link_msg->pvnr_cookie_targ = VPTOPNC(vp);
puffs_makecn(&link_msg->pvnr_cn, &link_msg->pvnr_cn_cred,
ncp, cred);
puffs_msg_setinfo(park_link, PUFFSOP_VN,
PUFFS_VN_LINK, VPTOPNC(dvp));
puffs_msg_enqueue(pmp, park_link);
error = puffs_msg_wait2(pmp, park_link, dpn, pn);
PUFFS_MSG_RELEASE(link);
error = checkerr(pmp, error, __func__);
/*
* XXX: stay in touch with the cache. I don't like this, but
* don't have a better solution either. See also puffs_rename().
*/
if (error == 0) {
puffs_updatenode(pn, PUFFS_UPDATECTIME);
}
vput(dvp);
if (error == 0) {
cache_setunresolved(nch);
cache_setvp(nch, vp);
}
return error;
}
void
puffs_gop_markupdate(struct vnode *vp, int flags)
{
int uflags = 0;
if (flags & GOP_UPDATE_ACCESSED)
uflags |= PUFFS_UPDATEATIME;
if (flags & GOP_UPDATE_MODIFIED)
uflags |= PUFFS_UPDATEMTIME;
puffs_updatenode(VPTOPP(vp), uflags, 0);
}
static int
puffs_vnop_rename(struct vop_nrename_args *ap)
{
PUFFS_MSG_VARS(vn, rename);
struct nchandle *fnch = ap->a_fnch;
struct nchandle *tnch = ap->a_tnch;
struct vnode *fdvp = ap->a_fdvp;
struct vnode *fvp = fnch->ncp->nc_vp;
struct vnode *tdvp = ap->a_tdvp;
struct vnode *tvp = tnch->ncp->nc_vp;
struct ucred *cred = ap->a_cred;
struct puffs_mount *pmp = MPTOPUFFSMP(fdvp->v_mount);
int error;
if (!EXISTSOP(pmp, RENAME))
return EOPNOTSUPP;
error = vget(tdvp, LK_EXCLUSIVE);
if (error != 0) {
DPRINTF(("puffs_vnop_rename: EAGAIN on tdvp vnode %p %s\n",
tdvp, tnch->ncp->nc_name));
return EAGAIN;
}
if (tvp != NULL) {
error = vget(tvp, LK_EXCLUSIVE);
if (error != 0) {
DPRINTF(("puffs_vnop_rename: EAGAIN on tvp vnode %p %s\n",
tvp, tnch->ncp->nc_name));
vput(tdvp);
return EAGAIN;
}
}
if ((fvp->v_mount != tdvp->v_mount) ||
(tvp && (fvp->v_mount != tvp->v_mount))) {
error = EXDEV;
goto out;
}
if (tvp) {
if (fvp->v_type == VDIR && tvp->v_type != VDIR) {
error = ENOTDIR;
goto out;
} else if (fvp->v_type != VDIR && tvp->v_type == VDIR) {
error = EISDIR;
goto out;
}
}
PUFFS_MSG_ALLOC(vn, rename);
rename_msg->pvnr_cookie_src = VPTOPNC(fvp);
rename_msg->pvnr_cookie_targdir = VPTOPNC(tdvp);
if (tvp)
rename_msg->pvnr_cookie_targ = VPTOPNC(tvp);
else
rename_msg->pvnr_cookie_targ = NULL;
puffs_makecn(&rename_msg->pvnr_cn_src, &rename_msg->pvnr_cn_src_cred,
fnch->ncp, cred);
puffs_makecn(&rename_msg->pvnr_cn_targ, &rename_msg->pvnr_cn_targ_cred,
tnch->ncp, cred);
puffs_msg_setinfo(park_rename, PUFFSOP_VN,
PUFFS_VN_RENAME, VPTOPNC(fdvp));
PUFFS_MSG_ENQUEUEWAIT2(pmp, park_rename, fdvp->v_data, NULL, error);
PUFFS_MSG_RELEASE(rename);
error = checkerr(pmp, error, __func__);
if (error == 0)
puffs_updatenode(VPTOPP(fvp), PUFFS_UPDATECTIME);
out:
if (tvp != NULL)
vn_unlock(tvp);
if (tdvp != tvp)
vn_unlock(tdvp);
if (error == 0)
cache_rename(fnch, tnch);
if (tvp != NULL)
vrele(tvp);
vrele(tdvp);
return error;
}
