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Commit c857ce16 authored by Dan Magenheimer's avatar Dan Magenheimer Committed by Greg Kroah-Hartman
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staging: ramster: remove old driver to prep for new base 



[V2: rebased to apply to 20120905 staging-next, no other changes]

To prep for moving the ramster codebase on top of the new
redesigned zcache2 codebase, we remove ramster (as well
as its contained diverged v1.1 version of zcache) entirely.

Acked-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: default avatarDan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 3ddd31fa

drivers/staging/Kconfig

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@@ -122,8 +122,6 @@ source "drivers/staging/android/Kconfig" 


source "drivers/staging/telephony/Kconfig"



source "drivers/staging/ramster/Kconfig"



source "drivers/staging/ozwpan/Kconfig"



source "drivers/staging/ccg/Kconfig"

drivers/staging/Makefile

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@@ -54,7 +54,6 @@ obj-$(CONFIG_MFD_NVEC) += nvec/ 
obj-$(CONFIG_DRM_OMAP)		+= omapdrm/

obj-$(CONFIG_ANDROID)		+= android/

obj-$(CONFIG_PHONE)		+= telephony/

obj-$(CONFIG_RAMSTER)		+= ramster/

obj-$(CONFIG_USB_WPAN_HCD)	+= ozwpan/

obj-$(CONFIG_USB_G_CCG)		+= ccg/

obj-$(CONFIG_WIMAX_GDM72XX)	+= gdm72xx/

drivers/staging/ramster/Kconfig

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config RAMSTER

	bool "Cross-machine RAM capacity sharing, aka peer-to-peer tmem"

	depends on (CLEANCACHE || FRONTSWAP) && CONFIGFS_FS=y && !ZCACHE && !XVMALLOC && !HIGHMEM && NET

	select LZO_COMPRESS

	select LZO_DECOMPRESS

	default n

	help

	  RAMster allows RAM on other machines in a cluster to be utilized

	  dynamically and symmetrically instead of swapping to a local swap

	  disk, thus improving performance on memory-constrained workloads

	  while minimizing total RAM across the cluster.  RAMster, like

	  zcache, compresses swap pages into local RAM, but then remotifies

	  the compressed pages to another node in the RAMster cluster.

drivers/staging/ramster/Makefile

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obj-$(CONFIG_RAMSTER)	+=	zcache-main.o tmem.o r2net.o xvmalloc.o cluster/

drivers/staging/ramster/TODO

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For this staging driver, RAMster duplicates code from drivers/staging/zcache

then incorporates changes to the local copy of the code.  For V5, it also

directly incorporates the soon-to-be-removed drivers/staging/zram/xvmalloc.[ch]

as all testing has been done with xvmalloc rather than the new zsmalloc.

Before RAMster can be promoted from staging, the zcache and RAMster drivers

should be either merged or reorganized to separate out common code.



Until V4, RAMster duplicated code from fs/ocfs2/cluster, but this made

RAMster incompatible with ocfs2 running in the same kernel and included

lots of code that could be removed.  As of V5, the ocfs2 code has been

mined and made RAMster-specific, made to communicate with a userland

ramster-tools package rather than ocfs2-tools, and can co-exist with ocfs2

both in the same kernel and in userland on the same machine.