On Thu, Mar 23, 2023 at 8:59 AM Christoph Hellwig <hch@xxxxxx> wrote: > > On Wed, Mar 22, 2023 at 06:17:12PM +0100, Vitaly Wool wrote: > > On Wed, Mar 22, 2023 at 10:30 AM Liu Shixin <liushixin2@xxxxxxxxxx> wrote: > > > > > > Since some users may not use zswap, the zswap_pool is wasted. Save memory > > > by delaying the initialization of zswap until enabled. > > > > To be honest, I'm not a huge fan of this. Would enabling zswap module > > build instead solve your problem? > > making zswap build modular would be a mess. It is core MM infrastructure > and now we'd need to start dealing with adding and removing it at > runtime as well as module refcounting. Since when is it a core MM infrastructure? It is basically just a frontswap frontend. ~Vitaly