https://github.com/torvalds/linux
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Tip revision: ef954844c7ace62f773f4f23e28d2d915adc419f authored by Linus Torvalds on 13 August 2017, 23:01:32 UTC
Linux 4.13-rc5
Tip revision: ef95484
Kconfig
config ZRAM
	tristate "Compressed RAM block device support"
	depends on BLOCK && SYSFS && ZSMALLOC && CRYPTO
	select CRYPTO_LZO
	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.
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