Re: [PATCH v1] mm: Enable suspend-only swap spaces

[David Hildenbrand]

On 30.06.21 19:07, Evan Green wrote:
> Currently it's not possible to enable hibernation without also enabling
> generic swap for a given swap area. These two use cases are not the
> same. For example there may be users who want to enable hibernation,
> but whose drives don't have the write endurance for generic swap
> activities.
>
> Add a new SWAP_FLAG_NOSWAP that adds a swap region but refuses to allow
> generic swapping to it. This region can still be wired up for use in
> suspend-to-disk activities, but will never have regular pages swapped to
> it.

Just to confirm: things like /proc/meminfo won't show this "swap that's 
not actually swap" as free/total swap, correct? Maybe it's worth 
spelling the expected system behavior out here.


--
Thanks,

David / dhildenb