Function confirm_capacity 

pub fn confirm_capacity(
    label: &str,
    actual: usize,
    expected: usize,
) -> Result<(), KernelError>

Validates that actual capacity matches expected capacity for kernel operations.

Validation function used throughout the kernel library to ensure data structure capacities are correct before performing operations. Prevents buffer overruns and ensures memory safety by catching capacity mismatches early with descriptive error messages.

Parameters

• label: Descriptive label for the validation context (used in error messages)
• actual: The actual capacity of the data structure being validated
• expected: The expected capacity required for the operation

Returns

Ok(()) if capacities match, otherwise KernelError::InvalidArguments with detailed message.

Error Conditions

Returns KernelError::InvalidArguments when actual != expected, providing a clear error message indicating the mismatch and context.