Re: [PATCH 00/20] mm: zswap: cleanups

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On (24/01/30 10:52), Johannes Weiner wrote:
> On Tue, Jan 30, 2024 at 09:21:31PM +0900, Sergey Senozhatsky wrote:
> > On (24/01/30 08:16), Yosry Ahmed wrote:
> > > Hey Johannes,
> > > 
> > > On Mon, Jan 29, 2024 at 08:36:36PM -0500, Johannes Weiner wrote:
> > > > Cleanups and maintenance items that accumulated while reviewing zswap
> > > > patches. Based on akpm/mm-unstable + the UAF fix I sent just now.
> > > 
> > > Patches 1 to 9 LGTM, thanks for the great cleanups!
> > > 
> > > I am less excited about patches 10 to 20 though. Don't get me wrong, I
> > > am all of logically ordering the code. However, it feels like in this
> > > case, we will introduce unnecessary layers in the git history in a lot
> > 
> > This also can complicate cherry-picking of patches to stable, prod, .etc
> 
> I'm sensitive to that argument, because we run our own kernel at Meta
> as well.

Well, it was less of an argument and more of a "let's consider that too".

> But moves are pretty easy. The code doesn't actually change, just the
> line offsets. So patch will mostly work with offset warnings. And if
> not, it's easy to fix up and verify. Refactoring and API restructuring
> (folios e.g.) make it much harder when it comes to this.

If pros of doing it are more significant that cons, then OK.
Either way I'm not against the patches.




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