staging: zcache: make zcache builtin only
zcache cannot currently be loaded as a module. However the Kconfig allows it to be built as a module; something that the user probably does not intend since the module is not loadable. This patch switches zcache from a tristate to a bool in the Kconfig Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com> Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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config ZCACHE
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tristate "Dynamic compression of swap pages and clean pagecache pages"
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bool "Dynamic compression of swap pages and clean pagecache pages"
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# X86 dependency is because zsmalloc uses non-portable pte/tlb
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# functions
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depends on (CLEANCACHE || FRONTSWAP) && CRYPTO && X86
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