[PATCH v18 4/8] rust: page: convert to `Ownable`

[Gary Guo]

On Thu Jun 25, 2026 at 11:15 AM BST, Andreas Hindborg wrote:
> From: Asahi Lina <lina at asahilina.net>
> 
> This allows Page references to be returned as borrowed references,
> without necessarily owning the struct page.
> 
> Remove `BorrowedPage` and update users to use `Owned<Page>`.
> 
> Signed-off-by: Asahi Lina <lina at asahilina.net>
> [ Andreas: Fix formatting and add a safety comment, update users. ]
> Signed-off-by: Andreas Hindborg <a.hindborg at kernel.org>

Nice to see `BorrowedPage` going away.

Reviewed-by: Gary Guo <gary at garyguo.net>

> ---
>  drivers/android/binder/page_range.rs |  10 +--
>  rust/kernel/alloc/allocator.rs       |  19 +++---
>  rust/kernel/alloc/allocator/iter.rs  |   6 +-
>  rust/kernel/page.rs                  | 122 +++++++++--------------------------
>  4 files changed, 46 insertions(+), 111 deletions(-)