2010-06-01 16:01:24 +08:00
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config ZRAM
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tristate "Compressed RAM block device support"
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2012-06-26 00:14:36 +08:00
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depends on BLOCK && SYSFS && ZSMALLOC
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2010-06-01 16:01:24 +08:00
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select LZO_COMPRESS
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select LZO_DECOMPRESS
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default n
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help
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Creates virtual block devices called /dev/zramX (X = 0, 1, ...).
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Pages written to these disks are compressed and stored in memory
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itself. These disks allow very fast I/O and compression provides
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good amounts of memory savings.
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It has several use cases, for example: /tmp storage, use as swap
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disks and maybe many more.
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See zram.txt for more information.
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2011-01-28 22:59:26 +08:00
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2014-04-08 06:38:18 +08:00
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config ZRAM_LZ4_COMPRESS
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bool "Enable LZ4 algorithm support"
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depends on ZRAM
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select LZ4_COMPRESS
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select LZ4_DECOMPRESS
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default n
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help
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This option enables LZ4 compression algorithm support. Compression
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2015-06-26 05:59:55 +08:00
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algorithm can be changed using `comp_algorithm' device attribute.
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