diff options
Diffstat (limited to 'vm/vm_map.c')
| -rw-r--r-- | vm/vm_map.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/vm/vm_map.c b/vm/vm_map.c index 2fd27316..8afa74b3 100644 --- a/vm/vm_map.c +++ b/vm/vm_map.c @@ -4868,6 +4868,37 @@ kern_return_t vm_map_machine_attribute( return ret; } +/* + * Routine: vm_map_msync + * Purpose: + * Synchronize out pages of the given map out to their memory + * manager, if any. + */ +kern_return_t vm_map_msync( + vm_map_t map, + vm_offset_t address, + vm_size_t size, + vm_sync_t sync_flags) +{ + if (map == VM_MAP_NULL) + KERN_INVALID_ARGUMENT; + + if (sync_flags & (VM_SYNC_ASYNCHRONOUS | VM_SYNC_SYNCHRONOUS) == + (VM_SYNC_ASYNCHRONOUS | VM_SYNC_SYNCHRONOUS)) + KERN_INVALID_ARGUMENT; + + size = round_page(address + size) - trunc_page(address); + address = trunc_page(address); + + if (size == 0) + return KERN_SUCCESS; + + /* TODO */ + + return KERN_INVALID_ARGUMENT; +} + + #if MACH_KDB |