Function frame_alloc

os/src/mm/frame_allocator.rs:100–105

()

}

pub fn frame_alloc() -> Option<FrameTracker> {
    FRAME_ALLOCATOR
        .exclusive_access()
        .alloc()
        .map(FrameTracker::new)
}

pub fn frame_dealloc(ppn: PhysPageNum) {
    FRAME_ALLOCATOR.exclusive_access().dealloc(ppn);