vm_usage          271 include/linux/mm_types.h 	int		vm_usage;	/* region usage count (access under nommu_region_sem) */
vm_usage          553 mm/nommu.c     	if (--region->vm_usage == 0) {
vm_usage         1140 mm/nommu.c     	region->vm_usage = 1;
vm_usage         1200 mm/nommu.c     			pregion->vm_usage++;
vm_usage         1215 mm/nommu.c     					pregion->vm_usage--;
vm_usage         1463 mm/nommu.c     	BUG_ON(region->vm_usage != 1);