Allow to compress on-the-wire data using two algorithms:

- HOLE - it simply turns all-zero blocks into few bytes header;
	it is extremely fast, so it is turned on by default;
	it is mostly intended to speed up initial synchronization
	where we expect many zeros;
- LZF - very fast algorithm by Marc Alexander Lehmann, which shows
	very decent compression ratio and has BSD license.

MFC after:	2 weeks

1 files changed, 2 insertions, 1 deletions

diff --git a/sbin/hastd/Makefile b/sbin/hastd/Makefile
index 6d8dd71..8172c26 100644
--- a/sbin/hastd/Makefile
+++ b/sbin/hastd/Makefile
@@ -6,7 +6,8 @@ PROG=	hastd
 SRCS=	activemap.c
 SRCS+=	control.c crc32.c
 SRCS+=	ebuf.c event.c
-SRCS+=	hast_checksum.c hast_proto.c hastd.c hooks.c
+SRCS+=	hast_checksum.c hast_compression.c hast_proto.c hastd.c hooks.c
+SRCS+=	lzf.c
 SRCS+=	metadata.c
 SRCS+=	nv.c
 SRCS+=	secondary.c