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Diffstat (limited to 'drivers/block/zram/Kconfig')
| -rw-r--r-- | drivers/block/zram/Kconfig | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/block/zram/Kconfig b/drivers/block/zram/Kconfig new file mode 100644 index 000000000000..6489c0fd0ea6 --- /dev/null +++ b/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. |