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Date: Thu, 4 Sep 2025 16:47:10 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: Vitaly Wool <vitaly.wool@konsulko.se>
Cc: hannes@cmpxchg.org, linux-kernel@vger.kernel.org, Vlastimil Babka
 <vbabka@suse.cz>, linux-mm@kvack.org
Subject: Re: [PATCH 0/3] mm: remove zpool
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In-Reply-To: <20250904093325.2768507-1-vitaly.wool@konsulko.se>
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On Thu,  4 Sep 2025 11:33:24 +0200 Vitaly Wool <vitaly.wool@konsulko.se> 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.

Well, we have the zpool code and we know it works.  If a later need for
the zpool layer is demonstrated then we can unremove the code at that
time.