| 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. |
