DEVEL15-windows-afsd-reset-acl-cache-20090312

DEVEL15-windows-afsd-reset-acl-cache-20090312

LICENSE MIT

Modify the cm_ResetACLCache interface to accept an optional cm_cell_t *.
At the moment every time a token is set or cleared all of the acl info
for all cm_scache_t objects regardless of cell is reset.  This is both
a performance hit and unnecessary.  If we know the cell, only reset
the acl info for cm_scache_t objects in that cell.

If cell is not specified, reset for all cells.

(cherry picked from commit d0e4044cfeef3ce1c5d435251de9b584343225f5)