Most filesystems that are designated as "modern" include checksumming, snapshots, cow, etc. However, do some include support for CRC? That would allow not only

Most filesystems that are designated as "modern" include checksumming, snapshots, cow, etc. However, do some include support for CRC? That would allow not only detecting, but also correcting bitrot. I assume that's what Raid6 does, albeit less granular than per file, and more aimed at recovering a full file than a few bits? Can anyone point me to a FS that supports it, or to the reason it's not done? As for ZFS, I think I'll keep avoiding it until it is mainlined. I don't really want to play that game.