RE: [PATCH 1/3] Add support for generic notifier lists

[Paul Durrant <xadimgnik@xxxxxxxxx>]

> -----Original Message-----
> From: Maximilian Heyne <mheyne@xxxxxxxxx>
> Sent: 13 March 2020 12:33
> To: xen-devel@xxxxxxxxxxxxxxxxxxxx
> Cc: Ian Jackson <ian.jackson@xxxxxxxxxx>; Paul Durrant <paul@xxxxxxx>
> Subject: [PATCH 1/3] Add support for generic notifier lists
> 
> From: Anthony Liguori <aliguori@xxxxxxxxxx>
> 
> Notifiers are data-less callbacks and a notifier list is a list of registered
> notifiers that all are interested in a particular event.
> 
> We'll use this in a few patches to implement mouse change notification.
> 
> Signed-off-by: Anthony Liguori <aliguori@xxxxxxxxxx>
> ---
> v1 -> v2
>  - Do not do memory allocations by placing list nodes in notifier
> 
> [cherry-picked from d1e70c5e6d1472856c52969301247fe8c3c8389d
>     conflicts: used the sys-qeue interface and added required
>     LIST_REMOVE_SAFE function to that]
> Signed-off-by: Maximilian Heyne <mheyne@xxxxxxxxx>

Reviewed-by: Paul Durrant <paul@xxxxxxx>