> On 16 Mar 2025, at 9:01 AM, Ernesto A. Fernández <ernesto.mnd.fernandez@xxxxxxxxx> wrote: > > Hi Ethan, > > I'm happy to see your enthusiasm for my driver but, if you want to help, I > think you should simply send the changes you have in mind to the out-of-tree > repo. That way you'll start learning the codebase while I can review your > work and run xfstests for you. Filesystems are very dangerous things; I've > probably done a lot of damage myself back in the day trying to help out with > the hfs drivers. > > As for upstreaming, the driver still has a few rough edges, but I don't > think that's the real reason I never tried to submit. I'm just no longer > confident that filesystem compatibility is a reasonable goal, and I don't > expect much interest from reviewers. There are too many risks, and too many > hardware restrictions these days; regular users have much easier (even if > slower) ways to move their files around. Other uses exist of course (like > Aditya can explain), but they are a bit esoteric. Of course if upstream > people disagree, and they do want the apfs support, I will be glad to > prepare a patch series. As far as I can tell, in case of upstreaming, making the FS readonly is worth it. Writes, I won’t comment. Maybe add option to force them, just like it is rn, old just remove the whole code. The second option IMO would require quite a lot of work from your side.