Re: [PATCH] mm/zswap: export zswap API to modules

[Vitaly Wool]

On 6/20/25 21:47, Matthew Wilcox wrote:
> On Fri, Jun 20, 2025 at 09:35:52PM +0200, Vitaly Wool wrote:
> > There is no reason to not let modules use zswap capabilies to
> > densely store unused pages in RAM. This will allow to remove some
> > homebrew solutions for e.g. GPU drivers in favor of plainly using
> > zswap pool.
>
> I really think these should be _GPL exports.  And I'm not sure why the
> GPU drivers are using "homebrew solutions" instead of using the shmem
> APIs which work whether zswap is configured in or not.

shmem API adds an extra copy which would be nice to avoid. Changing 
exports to _GPL I have indeed no problem with.

~Vitaly