Blocks tool found here: https://github.com/g2p/blocks is need to convert an existing FS to bcache without data loss. Please add to gentoo
+*blocks-9999 (10 Dec 2013) +*blocks-0.1.4_pre131210 (10 Dec 2013) + + 10 Dec 2013; Justin Lecher <jlec@gentoo.org> +blocks-0.1.4_pre131210.ebuild, + +blocks-9999.ebuild, +metadata.xml: + New addition written by me, #492294 +