/*!
* Return a cell with a given cell number.
* \param cellnum Cell number.
* \param locktype Lock to be used.
* \return
*/
struct cell *
afs_GetCell(afs_int32 cellnum, afs_int32 locktype)
{
struct cell *tc;
struct cell_name *cn;
tc = afs_GetCellStale(cellnum, locktype);
if (tc) {
afs_RefreshCell(tc);
} else {
ObtainReadLock(&afs_xcell);
cn = afs_cellname_lookup_id(cellnum);
ReleaseReadLock(&afs_xcell);
if (cn)
tc = afs_GetCellByName(cn->cellname, locktype);
}
return tc;
}
/*
* Set up a cell for dynroot if it's not there yet.
*/
static int
afs_dynrootCellInit(void)
{
if (!afs_dynrootCell) {
afs_int32 cellHosts[AFS_MAXCELLHOSTS];
struct cell *tc;
int code;
memset(cellHosts, 0, sizeof(cellHosts));
code =
afs_NewCell(AFS_DYNROOT_CELLNAME, cellHosts, CNoSUID | CNoAFSDB,
NULL, 0, 0, 0);
if (code)
return code;
tc = afs_GetCellByName(AFS_DYNROOT_CELLNAME, READ_LOCK);
if (!tc)
return ENODEV;
afs_dynrootCell = tc->cellNum;
afs_PutCell(tc, READ_LOCK);
}
return 0;
}
/*!
* Return primary cell, if any.
* \param locktype Type of lock used.
* \return
*/
struct cell *
afs_GetPrimaryCell(afs_int32 locktype)
{
return afs_GetCellByName(afs_thiscell, locktype);
}
