Struct SmapGuard 

pub struct SmapGuard { /* private fields */ }

RAII guard that disables SMAP on creation and restores it on drop.

Example

{
    let _guard = SmapGuard::new();
    // user memory is accessible here
    core::ptr::copy_nonoverlapping(user_src, kernel_dst, len);
} // SMAP automatically restored

Implementations

impl SmapGuard

pub fn new() -> Self

Create a new guard, temporarily disabling SMAP.

Trait Implementations

impl Default for SmapGuard

fn default() -> Self

Returns the “default value” for a type.

impl Drop for SmapGuard

fn drop(&mut self)

Executes the destructor for this type.