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zram: add package to use compressed ram disk for swap

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The busybox size is increased by 3.2KByte uncompressed on bcm47xx with
this commit.

This zram-swap automatically creates a zram device, a swap partition on
it and make the kernel swap pages to it.

Thank you Bastian Bittorf <bittorf@bluebottle.com> for idea and the
script.

SVN-Revision: 35025
This commit is contained in:
Hauke Mehrtens
2013-01-06 16:21:29 +00:00
parent 5154270694
commit bef592844b
4 changed files with 192 additions and 2 deletions
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4
package/busybox/config/util-linux/Config.in
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@@ -474,7 +474,7 @@ config BUSYBOX_CONFIG_FEATURE_MDEV_LOAD_FIRMWARE
config BUSYBOX_CONFIG_MKSWAP
bool "mkswap"
default n
default y
help
The mkswap utility is used to configure a file or disk partition as
Linux swap space. This allows Linux to use the entire file or
@@ -652,7 +652,7 @@ config BUSYBOX_CONFIG_SETARCH
config BUSYBOX_CONFIG_SWAPONOFF
bool "swaponoff"
default n
default y
select BUSYBOX_CONFIG_PLATFORM_LINUX
help
This option enables both the 'swapon' and the 'swapoff' utilities.