/*
* Return the current root filesystem block device name. This is only valid
* when root is either a slice, a stripe or a mirror.
*/
mdname_t *
meta_get_current_root_dev(
mdsetname_t *sp,
md_error_t *ep
)
{
md_stripe_t *stripep;
md_mirror_t *mirrorp;
md_row_t *rp;
md_comp_t *cp;
mdname_t *rootnp;
void *curroot;
char *miscname;
int smi;
if ((curroot = meta_get_current_root(ep)) == NULL)
return (NULL);
if ((rootnp = metaname(&sp, curroot, UNKNOWN, ep)) == NULL)
return (NULL);
if (metaismeta(rootnp)) {
if ((miscname = metagetmiscname(rootnp, ep)) == NULL)
return (NULL);
if ((strcmp(miscname, MD_MIRROR) == 0) &&
((mirrorp = meta_get_mirror(sp, rootnp, ep)) != NULL)) {
for (smi = 0; smi < NMIRROR; smi++) {
md_submirror_t *mdsp =
&mirrorp->submirrors[smi];
rootnp = mdsp->submirnamep;
/* skip unused submirrors */
if (rootnp == NULL) {
assert(mdsp->state == SMS_UNUSED);
continue;
}
if ((miscname = metagetmiscname(rootnp, ep))
== NULL) {
(void) mdmderror(ep, MDE_UNKNOWN_TYPE,
meta_getminor(rootnp->dev),
rootnp->cname);
return (NULL);
}
break;
}
}
if ((strcmp(miscname, MD_STRIPE) == 0) &&
((stripep = meta_get_stripe(sp, rootnp, ep)) != NULL)) {
rp = &stripep->rows.rows_val[0];
cp = &rp->comps.comps_val[0];
if (metachkcomp(cp->compnamep, ep) == 0)
return (cp->compnamep);
}
/* Root is not a single stripe metadevice */
(void) mddeverror(ep, MDE_INV_ROOT, rootnp->dev, rootnp->cname);
return (NULL);
} else return (rootnp);
}
int
get_namelist(mdnamelist_t **transdevlist, mdnamelist_t **devlist,
char *dev_type)
{
mdnamelist_t *np, *prevp;
md_error_t e = mdnullerror;
char *type_name;
int i = 0;
prevp = np = *transdevlist;
while (np) {
if ((type_name = metagetmiscname(np->namep, &e)) == NULL) {
*devlist = NULL;
return (-1);
}
if (strcmp(type_name, dev_type) == 0) {
/* move it to the devlist */
add_to_list(&np, &prevp, devlist);
i++;
} else {
prevp = np;
np = np->next;
}
}
return (i);
}
/*
* resync raid
*/
int
meta_raid_resync(
mdsetname_t *sp,
mdname_t *raidnp,
daddr_t size,
md_error_t *ep
)
{
char *miscname;
md_resync_ioctl_t ri;
/* should have a set */
assert(sp != NULL);
assert(sp->setno == MD_MIN2SET(meta_getminor(raidnp->dev)));
/* make sure we have a raid */
if ((miscname = metagetmiscname(raidnp, ep)) == NULL)
return (-1);
if (strcmp(miscname, MD_RAID) != 0) {
return (mdmderror(ep, MDE_NOT_RAID, meta_getminor(raidnp->dev),
raidnp->cname));
}
/* start resync */
(void) memset(&ri, 0, sizeof (ri));
MD_SETDRIVERNAME(&ri, MD_RAID, sp->setno);
ri.ri_mnum = meta_getminor(raidnp->dev);
ri.ri_copysize = size;
if (metaioctl(MD_IOCSETSYNC, &ri, &ri.mde, raidnp->cname) != 0)
return (mdstealerror(ep, &ri.mde));
/* return success */
return (0);
}
/*
* grow generic device
*/
int
meta_concat_generic(
mdsetname_t *sp,
mdname_t *namep,
u_longlong_t big_or_little,
md_error_t *ep
)
{
md_grow_params_t mgp;
char *miscname;
/* should have a set */
assert(sp != NULL);
assert(sp->setno == MD_MIN2SET(meta_getminor(namep->dev)));
/* get type */
if ((miscname = metagetmiscname(namep, ep)) == NULL)
return (-1);
/* grow device */
(void) memset(&mgp, 0, sizeof (mgp));
if (big_or_little & MD_64BIT_META_DEV)
mgp.options = MD_CRO_64BIT;
else
mgp.options = MD_CRO_32BIT;
mgp.mnum = meta_getminor(namep->dev);
MD_SETDRIVERNAME(&mgp, miscname, sp->setno);
if (metaioctl(MD_IOCGROW, &mgp, &mgp.mde, namep->cname) != 0)
return (mdstealerror(ep, &mgp.mde));
/* clear cache */
meta_invalidate_name(namep);
/* return success */
return (0);
}