Am 06.12.2012 um 22:19 schrieb Phil Vandry: > Hello Freerunner users, > > I am interested in using the new f2fs filesystem created by Kim Jaegeuk at > Samsung on the µSD cards of a bunch of GTA02s. Right now it's undergoing > testing in linux-next and there are several fresh discussion threads about it > on lkml. I intend to wait until the code has stabilized a bit before making > the attempt. > > First, is this a good idea? Also, is anyone else interested? > > The problem is that the code only compiles against recent Linux kernels and > the newest kernel available for GTA02 is 2.6.39. I see two options: > > 1. Get Linux 3.7 working on the GTA02 > > 2. Get f2fs working on Linux 2.6.39
3. develop 3.7/3.8 for GTA04 - the newest complete kernel is 3.5 and someone has recently posted first success on a 3.6 kernel with device tree. > > Both options are challenging but I have to go for #2 because I don't have the > knowledge to do #1. > > For #1: There are quite a few differences between upstream 2.6.39 and > om-gta02-2.6.39 kernels. Some of the patches I understand and could re-apply > against a more recent kernel, some of them have already been integrated > upstream, but others are mysterious to me and even if I could apply them I > can't guess whether or not they ought to still be applied. One big issue is > that the glamo driver is not present upstream (and ar6000 also?). > > For #2: I have already prepared a patch to backport f2fs to 2.6.34/2.6.39 but > there have been quite a lot of changes in the vfs and other areas in the > intervening time. The patch is 817 lines long. Most of it is straightforward, > though there were one or two tricky bits. The only thing I have achieved so > far is getting it to compile with no errors and no warnings. That's a start, > but it's not a guarantee that the filesystem will actually work! > > A significant problem with #2 is maintenance and bug fixes going forward. I > would have to backport all future changes to f2fs. > > Anyway, for the information of anyone who's interested, I plan to at least > give option #2 a try and see if I might be lucky :-) > > -v > > _______________________________________________ > Openmoko community mailing list > community@lists.openmoko.org > http://lists.openmoko.org/mailman/listinfo/community _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
