On 2015-04-07 19:57, 인정식 wrote: > Thank you for the information. > I just found that btrfs-progs includes several files that seem modified from > btrfs kernel source. > I am not sure exactly what they are. > Web pages say libbtrfs is to provide interface for apps that use btrfs. > Why should there be duplicated codes between kernel and user space? > Is it an on-going effort to port whole btrfs to user space? > > Could you lead me to some more information about libbtrfs or how to port > btrfs to user space? > > Thank you, > Jeongsik > > As far as I understand it, the intent is to allow things like btrfs check and btrfs restore to still work even if the kernel doesn't have btrfs support. From what I can tell, you are the first person to actually be serious about getting BTRFS running in userspace, so there probably isn't much BTRFS specific literature out there.
I would, however suggest looking at the FUSE drivers for ext4 and ZFS, as those are both ported from kernel space, and should give some good examples of where to start.
smime.p7s
Description: S/MIME Cryptographic Signature
