linux/drivers/staging/zcache, branch v3.10.2

drivers: staging: zcache: fix compile error

2013-05-30T12:14:30Z

Fix below compile error: drivers/built-in.o: In function `zcache_pampd_free': >> zcache-main.c:(.text+0xb1c8a): undefined reference to `ramster_pampd_free' >> zcache-main.c:(.text+0xb1cbc): undefined reference to `ramster_count_foreign_pages' drivers/built-in.o: In function `zcache_pampd_get_data_and_free': >> zcache-main.c:(.text+0xb1f05): undefined reference to `ramster_count_foreign_pages' drivers/built-in.o: In function `zcache_cpu_notifier': >> zcache-main.c:(.text+0xb228d): undefined reference to `ramster_cpu_up' >> zcache-main.c:(.text+0xb2339): undefined reference to `ramster_cpu_down' drivers/built-in.o: In function `zcache_pampd_create': >> (.text+0xb26ce): undefined reference to `ramster_count_foreign_pages' drivers/built-in.o: In function `zcache_pampd_create': >> (.text+0xb27ef): undefined reference to `ramster_count_foreign_pages' drivers/built-in.o: In function `zcache_put_page': >> (.text+0xb299f): undefined reference to `ramster_do_preload_flnode' drivers/built-in.o: In function `zcache_flush_page': >> (.text+0xb2ea3): undefined reference to `ramster_do_preload_flnode' drivers/built-in.o: In function `zcache_flush_object': >> (.text+0xb307c): undefined reference to `ramster_do_preload_flnode' drivers/built-in.o: In function `zcache_init': >> zcache-main.c:(.text+0xb3629): undefined reference to `ramster_register_pamops' >> zcache-main.c:(.text+0xb3868): undefined reference to `ramster_init' >> drivers/built-in.o:(.rodata+0x15058): undefined reference to `ramster_foreign_eph_pages' >> drivers/built-in.o:(.rodata+0x15078): undefined reference to `ramster_foreign_pers_pages' Reported-by: Fengguang Wu Signed-off-by: Bob Liu Acked-by: Konrad Rzeszutek Wilk Signed-off-by: Greg Kroah-Hartman

staging: ramster: add how-to document

2013-05-20T15:21:04Z

Add how-to documentation that provides a step-by-step guide for configuring and trying out a ramster cluster. Signed-off-by: Dan Magenheimer Signed-off-by: Greg Kroah-Hartman

staging: zcache: Fix incorrect module_param_array types

2013-05-16T22:37:51Z

drivers/staging/zcache/zcache-main.c: In function ‘__check_disable_cleancache’: drivers/staging/zcache/zcache-main.c:1928: warning: return from incompatible pointer type drivers/staging/zcache/zcache-main.c: In function ‘__check_disable_frontswap’: drivers/staging/zcache/zcache-main.c:1929: warning: return from incompatible pointer type drivers/staging/zcache/zcache-main.c: In function ‘__check_disable_frontswap_ignore_nonactive’: drivers/staging/zcache/zcache-main.c:1933: warning: return from incompatible pointer type Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman

staging: zcache: enable zcache to be built/loaded as a module

2013-05-01T00:04:01Z

Allow zcache to be built/loaded as a module. Note runtime dependency disallows loading if cleancache/frontswap lazy initialization patches are not present. Zsmalloc support has not yet been merged into zcache but, once merged, could now easily be selected via a module_param. If built-in (not built as a module), the original mechanism of enabling via a kernel boot parameter is retained, but this should be considered deprecated. Note that module unload is explicitly not yet supported. Signed-off-by: Dan Magenheimer [v1: Rebased with different order of patches] [v2: Removed [CLEANCACHE|FRONTSWAP]_HAS_LAZY_INIT ifdef] [v3: Rebased on top of ramster->zcache move] [v4: Redid the Makefile] [v5: s/ZCACHE2/ZCACHE/] Signed-off-by: Konrad Rzeszutek Wilk Signed-off-by: Bob Liu Cc: Wanpeng Li Cc: Andor Daam Cc: Florian Schmaus Cc: Minchan Kim Cc: Stefan Hengelein Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

staging: zcache: enable ramster to be built/loaded as a module

2013-05-01T00:04:01Z

Enable module support for ramster. Note runtime dependency disallows loading if cleancache/frontswap lazy initialization patches are not present. If built-in (not built as a module), the original mechanism of enabling via a kernel boot parameter is retained, but this should be considered deprecated. Note that module unload is explicitly not yet supported. [v1: Fixed compile issues since ramster_init now has four arguments] [v2: Fixed rebase on ramster->zcache move] [akpm@linux-foundation.org: use_frontswap_selfshrink cannot be __initdata] Signed-off-by: Dan Magenheimer Signed-off-by: Konrad Rzeszutek Wilk Signed-off-by: Bob Liu Cc: Wanpeng Li Cc: Andor Daam Cc: Florian Schmaus Cc: Minchan Kim Cc: Stefan Hengelein Cc: Wu Fengguang Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

zcache/tmem: Better error checking on frontswap_register_ops return value.

2013-05-01T00:04:01Z

In the past it either used to be NULL or the "older" backend. Now we also return -Exx error codes. Signed-off-by: Konrad Rzeszutek Wilk Signed-off-by: Bob Liu Cc: Wanpeng Li Cc: Andor Daam Cc: Dan Magenheimer Cc: Florian Schmaus Cc: Minchan Kim Cc: Stefan Hengelein Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

cleancache: Make cleancache_init use a pointer for the ops

2013-05-01T00:04:01Z

Instead of using a backend_registered to determine whether a backend is enabled. This allows us to remove the backend_register check and just do 'if (cleancache_ops)' [v1: Rebase on top of b97c4b430b0a (ramster->zcache move] Signed-off-by: Konrad Rzeszutek Wilk Signed-off-by: Bob Liu Cc: Wanpeng Li Cc: Andor Daam Cc: Dan Magenheimer Cc: Florian Schmaus Cc: Minchan Kim Cc: Stefan Hengelein Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

frontswap: make frontswap_init use a pointer for the ops

2013-05-01T00:04:00Z

This simplifies the code in the frontswap - we can get rid of the 'backend_registered' test and instead check against frontswap_ops. [v1: Rebase on top of 703ba7fe5e0 (ramster->zcache move] Signed-off-by: Konrad Rzeszutek Wilk Signed-off-by: Bob Liu Cc: Wanpeng Li Cc: Andor Daam Cc: Dan Magenheimer Cc: Florian Schmaus Cc: Minchan Kim Cc: Stefan Hengelein Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

staging: zcache/debug: fix coding style

2013-04-13T13:29:00Z

Fix coding style issue: ERROR: space prohibited before that '++' (ctx:WxO) and line beyond 8 characters. Acked-by: Dan Magenheimer Signed-off-by: Wanpeng Li Signed-off-by: Greg Kroah-Hartman

staging: ramster/debug: Add CONFIG_RAMSTER_DEBUG Kconfig entry

2013-04-13T13:27:09Z

Add CONFIG_RAMSTER_DEBUG Kconfig entry. Acked-by: Dan Magenheimer Signed-off-by: Wanpeng Li Signed-off-by: Greg Kroah-Hartman