Squashfs: add LZ4 compression support

Add support for reading file systems compressed with the
LZ4 compression algorithm.

This patch adds the LZ4 decompressor wrapper code.

Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>

1 files changed, 1 insertions, 0 deletions

diff --git a/fs/squashfs/squashfs_fs.h b/fs/squashfs/squashfs_fs.h
index 4b2beda49498..506f4ba5b983 100644
--- a/fs/squashfs/squashfs_fs.h
+++ b/fs/squashfs/squashfs_fs.h
@@ -240,6 +240,7 @@ struct meta_index {
 #define LZMA_COMPRESSION        2
 #define LZO_COMPRESSION         3
 #define XZ_COMPRESSION          4
+#define LZ4_COMPRESSION         5
 
 struct squashfs_super_block {
         __le32                  s_magic;