diff options
Diffstat (limited to 'vm_control/src/lib.rs')
| -rw-r--r-- | vm_control/src/lib.rs | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/vm_control/src/lib.rs b/vm_control/src/lib.rs index 585b162..9e78be2 100644 --- a/vm_control/src/lib.rs +++ b/vm_control/src/lib.rs @@ -450,7 +450,12 @@ pub enum VmMsyncRequest { /// Flush the content of a memory mapping to its backing file. /// `slot` selects the arena (as returned by `Vm::add_mmap_arena`). /// `offset` is the offset of the mapping to sync within the arena. - MsyncArena { slot: u32, offset: usize }, + /// `size` is the size of the mapping to sync within the arena. + MsyncArena { + slot: u32, + offset: usize, + size: usize, + }, } #[derive(MsgOnSocket, Debug)] @@ -471,11 +476,10 @@ impl VmMsyncRequest { pub fn execute(&self, vm: &mut Vm) -> VmMsyncResponse { use self::VmMsyncRequest::*; match *self { - MsyncArena { slot, offset } => { + MsyncArena { slot, offset, size } => { if let Some(arena) = vm.get_mmap_arena(slot) { - match arena.msync(offset) { - Ok(true) => VmMsyncResponse::Ok, - Ok(false) => VmMsyncResponse::Err(SysError::new(EINVAL)), + match arena.msync(offset, size) { + Ok(()) => VmMsyncResponse::Ok, Err(e) => match e { MmapError::SystemCallFailed(errno) => VmMsyncResponse::Err(errno), _ => VmMsyncResponse::Err(SysError::new(EINVAL)), |