[PATCH v2 05/10] liveupdate: defer session block allocation and PA setting

[Mike Rapoport]

On Thu, May 14, 2026 at 10:26:23PM +0000, Pasha Tatashin wrote:
> Currently, luo_session_setup_outgoing() allocates the session block and
> sets its physical address in the header immediately. With upcoming
> dynamic block-based session management, this makes the first block
> different from the rest. Move the allocation to where it is first needed.
> 
> Signed-off-by: Pasha Tatashin <pasha.tatashin at soleen.com>

Acked-by: Mike Rapoport (Microsoft) <rppt at kernel.org>

> ---
> @@ -77,15 +77,16 @@
>  
>  /**
>   * struct luo_session_header - Header struct for managing LUO sessions.
> - * @count:      The number of sessions currently tracked in the @list.
> - * @list:       The head of the linked list of `struct luo_session` instances.
> - * @rwsem:      A read-write semaphore providing synchronized access to the
> - *              session list and other fields in this structure.
> - * @header_ser: The header data of serialization array.
> - * @ser:        The serialized session data (an array of
> - *              `struct luo_session_ser`).
> - * @active:     Set to true when first initialized. If previous kernel did not
> - *              send session data, active stays false for incoming.
> + * @count:       The number of sessions currently tracked in the @list.
> + * @list:        The head of the linked list of `struct luo_session` instances.
> + * @rwsem:       A read-write semaphore providing synchronized access to the
> + *               session list and other fields in this structure.
> + * @header_ser:  The header data of serialization array.
> + * @ser:         The serialized session data (an array of
> + *               `struct luo_session_ser`).
> + * @sessions_pa: Points to the location of sessions_pa within struct luo_ser.
> + * @active:      Set to true when first initialized. If previous kernel did not
> + *               send session data, active stays false for incoming.

Hmm, why addition of a single field changed the entire block? :/

>   */
>  struct luo_session_header {
>  	long count;

-- 
Sincerely yours,
Mike.