I'm interested in flashing the kk 2.5 to my rooted but otherwise stock rom on rfs. I just want the swap option enabled as I have my phone set up the way I l ike it. The only 2 problems are CWM doesn't do rfs, and I can't seem to find a custom kernel that supports rfs natively. Let me be clear: I'm interested in a stock kernel with the swap function enabled (on sdcard). Is there such a kernel or do I have to roll my own? If I have to roll my own kernel, can someone point me to the kernel source and instructions?

2nd, on a side note: (warning: stupid question) why are most of the custom roms focused on ext4 instead of rfs? I've never been a fan of ext filesystems, whether it' s 2, 3, or 4, in case you're wondering about the thrust of my questions.

Thank you for your answers.

 

I've run linux on my computers since '02. Started with ext3 as my main file system until I started having errors when shutting down/rebooting my laptop forcefully. It drove me crazy to have to fix the mess, especially if one of the inodes was corrupted. A real PITA compared to xfs, which I use now. But android doesn't use xfs, but reiserfs (rfs?) instead, from what I am understanding. Reiser is supposedly better than ext in almost every way though ext is well supported for ages. Ext reserves space for the inodes, about 5% or so. Reiser doesn't reserve any space thus giving you more space to use while providing better journalling. That's just for starters...

 

Ok, I've decided to roll my own stock kernel with swap and compcache (zram) enabled. Plus, the cpu governor is set to ondemand by default. These are the only changes I'm going to make to the kernel for now. Going to try to pack it and flash it to my phone sometime today or tmw and test. If it works good, I'm willing to post the kernel package if someone is willing to host it for downloading.

 

Thanks for the link LV! I read up on it and downloaded it as well as Hroark13's github kernel source (he updated to 2.6.35.14). I'm kind of old school, compiling the kernel is easy as I compile all of my custom kernels for every laptop I own. It's the packaging for android that I was unfamiliar with. Instead of using the scripts provided by the kernel factory, I just took apart the scripts and typed it all out by hand to see what does what. I think it's all packaged up now. About to flash it via cwm.

 

Ok, I flashed it and it failed to boot. I took apart the original kernel from samsung and I can see why my kernel didn't work. Fortunately, I figured out how to create a flashable cwm file for the original kernel and got my phone working without using odin. No need to wipe data or dalvik-cache. There appears to be code for the rfs file system missing in the kernel source samsung provided for download, which explains why hroark13, kouma, blooddawn, etc didn't make any custom kernels that runs on rfs. However, I managed to track down some of the source code for the rfs file system, but it was modified to patch to the linux kernels. I'm going to go thru the patch to see if I can modify it to patch into the android kernel source. If you can hang on while I take a bumpy ride to sort this out, I will get this working on stock roms.