rust/kernel/io/mem.rs

File Facts

System

Linux kernel

Corpus path

rust/kernel/io/mem.rs

Extension

.rs

Size

9658 bytes

Lines

302

Domain

Rust Kernel Layer

Bucket

Rust API Membrane

Inferred role

Rust Kernel Layer: implementation source

Status

source implementation candidate

Why This File Exists

Rust-side wrappers and abstractions around kernel C APIs, ownership contracts, allocation, synchronization, and module integration.

• Rust-side wrappers and abstractions around kernel C APIs, ownership contracts, allocation, synchronization, and module integration.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• function drop

Annotated Snippet

fn drop(&mut self) {
        // SAFETY: Safe as by the invariant of `Io`.
        unsafe { bindings::iounmap(self.io.addr() as *mut c_void) }
    }
}

impl<const SIZE: usize> Deref for IoMem<'_, SIZE> {
    type Target = Mmio<SIZE>;

    fn deref(&self) -> &Self::Target {
        // SAFETY: Safe as by the invariant of `IoMem`.
        unsafe { Mmio::from_raw(&self.io) }
    }
}

Annotation

• Detected declarations: `function drop`.
• Atlas domain: Rust Kernel Layer / Rust API Membrane.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.