kernel/include/xen/interface/memory.h
.. .. @@ -245,12 +245,6 @@ 245 245 246 246 247 247 /* 248 - * Prevent the balloon driver from changing the memory reservation249 - * during a driver critical region.250 - */251 -extern spinlock_t xen_reservation_lock;252 -253 -/*254 248 * Unmaps the page appearing at a particular GPFN from the specified guest's 255 249 * pseudophysical address space. 256 250 * arg == addr of xen_remove_from_physmap_t.