Re: [PATCH 0/3] mm: remove zpool

[David Hildenbrand <david@redhat.com>]

On 04.09.25 12:13, Vlastimil Babka wrote:
> On 9/4/25 11:33, Vitaly Wool wrote:
>>> With zswap using zsmalloc directly, there are no more in-tree users of
>>> this code. Remove it.
>>>
>>> Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
>>
>> Per the previous discussions, this gets a *NACK* from my side. There is
>> hardly anything _technical_ preventing new in-tree users of zpool API.
>> zpool API is neutral and well-defined, I don’t see *any* good reason for
>> it to be phased out.
> 
> AFAIK it's a policy that unused code should be removed ASAP. And that's the
> case for zpool after Patch 1, no? It could be different if another user was
> about to be merged (to avoid unnecessary churn), but that doesn't seem the
> case for zblock?

Right, and

  13 files changed, 84 insertions(+), 715 deletions(-)

speaks for itself if there is no new user anticipated.

IIRC, we did a similar approach when we removed frontswap.

-- 
Cheers

David / dhildenb