Add a method to `Page` that allows construction of a reference instance from `struct page` pointer. Signed-off-by: Andreas Hindborg --- Signed-off-by: Andreas Hindborg --- rust/kernel/page.rs | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/rust/kernel/page.rs b/rust/kernel/page.rs index 432fc0297d4a8..f666c92fcf451 100644 --- a/rust/kernel/page.rs +++ b/rust/kernel/page.rs @@ -176,6 +176,17 @@ pub fn nid(&self) -> i32 { unsafe { bindings::page_to_nid(self.as_ptr()) } } + /// Create a `&Page` from a raw `struct page` pointer + /// + /// # Safety + /// + /// `ptr` must be valid for use as a reference for the duration of `'a`. + pub unsafe fn from_raw<'a>(ptr: *mut bindings::page) -> &'a Self { + // SAFETY: By function safety requirements, ptr is not null and is + // valid for use as a reference. + unsafe { NonNull::new_unchecked(ptr).cast().as_ref() } + } + /// Runs a piece of code with this page mapped to an address. /// /// The page is unmapped when this call returns. --- base-commit: 63804fed149a6750ffd28610c5c1c98cce6bd377 change-id: 20260128-page-from-raw-e8e1f14e3f6d Best regards, -- Andreas Hindborg