+struct mmap_param
+{
+ ptr_t vms_mnt; // vm mount point
+ struct proc_mm* pvms; // process vm
+ off_t offset; // mapped file offset
+ size_t mlen; // mapped memory length
+ size_t flen; // mapped file length
+ u32_t proct; // protections
+ u32_t flags; // other options
+ u32_t type; // region type
+ ptr_t range_start;
+ ptr_t range_end;
+};
+
+int
+mem_adjust_inplace(vm_regions_t* regions,
+ struct mm_region* region,
+ ptr_t newend);
+
+int
+mmap_user(void** addr_out,
+ struct mm_region** created,
+ ptr_t addr,
+ struct v_file* file,
+ struct mmap_param* param);
+
+int
+mem_map(void** addr_out,
+ struct mm_region** created,
+ ptr_t addr,