Remove SYS_PHYSUNMAP.

src/call.rs

@@ -264,16 +264,6 @@ pub unsafe fn physmap(physical_address: usize, size: usize, flags: PhysmapFlags)
     syscall3(SYS_PHYSMAP, physical_address, size, flags.bits())
 }
 
-/// Unmap previously mapped physical memory
-///
-/// # Errors
-///
-/// * `EPERM` - `uid != 0`
-/// * `EFAULT` - `virtual_address` has not been mapped
-pub unsafe fn physunmap(virtual_address: usize) -> Result<usize> {
-    syscall1(SYS_PHYSUNMAP, virtual_address)
-}
-
 /// Create a pair of file descriptors referencing the read and write ends of a pipe
 pub fn pipe2(fds: &mut [usize; 2], flags: usize) -> Result<usize> {
     unsafe { syscall2(SYS_PIPE2, fds.as_ptr() as usize, flags) }

src/number.rs

@@ -58,7 +58,6 @@ pub const SYS_PHYSALLOC: usize =945;
 pub const SYS_PHYSALLOC3: usize=9453;
 pub const SYS_PHYSFREE: usize = 946;
 pub const SYS_PHYSMAP: usize =  947;
-pub const SYS_PHYSUNMAP: usize =948;
 pub const SYS_VIRTTOPHYS: usize=949;
 pub const SYS_PIPE2: usize =    331;
 pub const SYS_SETPGID: usize =  57;