Out of curiosity, have you seen Featherstitch[1]?. Valerie Aurora did a really nice article[2] about it for LWN a ways back.
[1] http://featherstitch.cs.ucla.edu/ [2] https://lwn.net/Articles/354861/ -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
