Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / block / zram / Kconfig

diff --git a/kernel/drivers/block/zram/Kconfig b/kernel/drivers/block/zram/Kconfig
new file mode 100644 (file)
index 0000000..6489c0f
--- /dev/null
+++ b/kernel/drivers/block/zram/Kconfig
@@ -0,0 +1,34 @@
+config ZRAM
+       tristate "Compressed RAM block device support"
+       depends on BLOCK && SYSFS && ZSMALLOC
+       select LZO_COMPRESS
+       select LZO_DECOMPRESS
+       default n
+       help
+         Creates virtual block devices called /dev/zramX (X = 0, 1, ...).
+         Pages written to these disks are compressed and stored in memory
+         itself. These disks allow very fast I/O and compression provides
+         good amounts of memory savings.
+
+         It has several use cases, for example: /tmp storage, use as swap
+         disks and maybe many more.
+
+         See zram.txt for more information.
+
+config ZRAM_LZ4_COMPRESS
+       bool "Enable LZ4 algorithm support"
+       depends on ZRAM
+       select LZ4_COMPRESS
+       select LZ4_DECOMPRESS
+       default n
+       help
+         This option enables LZ4 compression algorithm support. Compression
+         algorithm can be changed using `comp_algorithm' device attribute.
+
+config ZRAM_DEBUG
+       bool "Compressed RAM block device debug support"
+       depends on ZRAM
+       default n
+       help
+         This option adds additional debugging code to the compressed
+         RAM block device driver.