erofs-utils: mkfs: support multiple block compression

Store compressed block count to the compressed index so that EROFS
can compress from variable-sized input to variable-sized compressed
blocks and make the in-place decompression possible as well.

Link: https://lore.kernel.org/r/20210411034844.12673-7-xiang@kernel.org
Signed-off-by: Gao Xiang <xiang@kernel.org>
1 file changed