Squashfs: Add XZ compression configuration option
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
diff --git a/fs/squashfs/Kconfig b/fs/squashfs/Kconfig
index e5f63da..50cc4ed 100644
--- a/fs/squashfs/Kconfig
+++ b/fs/squashfs/Kconfig
@@ -53,6 +53,21 @@
If unsure, say N.
+config SQUASHFS_XZ
+ bool "Include support for XZ compressed file systems"
+ depends on SQUASHFS
+ select XZ_DEC
+ help
+ Saying Y here includes support for reading Squashfs file systems
+ compressed with XZ compresssion. XZ gives better compression than
+ the default zlib compression, at the expense of greater CPU and
+ memory overhead.
+
+ XZ is not the standard compression used in Squashfs and so most
+ file systems will be readable without selecting this option.
+
+ If unsure, say N.
+
config SQUASHFS_EMBEDDED
bool "Additional option for memory-constrained systems"
depends on SQUASHFS