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path: root/drivers/staging/zcache/ramster
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2013-08-12staging: zcache: delete itGreg Kroah-Hartman16-6786/+0
zcache is obsolete and not used anymore, Bob Liu has rewritten it and is submitting it for inclusion through the main -mm tree, as it should have been done in the first place... Cc: Bob Liu <lliubbo@gmail.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Kyungmin Park <kmpark@infradead.org> Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-05staging/zcache: Fix memory leak while dropping an o2net_sock_container objectJie Liu1-0/+3
Free sc->sc_page when releasing a struct o2net_sock_container object to avoid memory leaks. This issue has been fixed by Younger Liu for OCFS2, so I sync that patch to zcache as we share the same network code base. Cc: Younger Liu <younger.liu@huawei.com> Cc: Bob Liu <bob.liu@oracle.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Jie Liu <jeff.liu@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-30drivers: staging: zcache: fix compile errorBob Liu2-2/+6
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 <fengguang.wu@intel.com> Signed-off-by: Bob Liu <bob.liu@oracle.com> Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-20staging: ramster: add how-to documentDan Magenheimer1-0/+366
Add how-to documentation that provides a step-by-step guide for configuring and trying out a ramster cluster. Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-30staging: zcache: enable ramster to be built/loaded as a moduleDan Magenheimer5-11/+33
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 <dan.magenheimer@oracle.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Bob Liu <lliubbo@gmail.com> Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com> Cc: Andor Daam <andor.daam@googlemail.com> Cc: Florian Schmaus <fschmaus@gmail.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Stefan Hengelein <ilendir@googlemail.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-13staging: ramster/debug: Add CONFIG_RAMSTER_DEBUG Kconfig entryWanpeng Li1-1/+1
Add CONFIG_RAMSTER_DEBUG Kconfig entry. Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-13staging: ramster: Add incremental accessory countersWanpeng Li2-16/+83
Add incremental accessory counters that are going to be used for debug fs entries. Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-13staging: ramster/debug: Use an array to initialize/use debugfs attributesWanpeng Li1-36/+32
Use an array to initialize/use debugfs attributes, it makes them neater as zcache/debug.c does. Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-13staging: ramster: Move debugfs code out of ramster.c fileWanpeng Li3-110/+153
Note that at this point there is no CONFIG_RAMSTER_DEBUG option in the Kconfig. So in effect all of the counters are nop until that option gets introduced in patch: ramster/debug: Add CONFIG_RAMSTER_DEBUG Kconfig entry Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-12staging: ramster: decrease foregin pers pages when count < 0Wanpeng Li1-0/+1
commit 9a5c59687ad ("staging: ramster: Provide accessory functions for counter decrease") forget decrease foregin pers pages, this patch fix it. Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-11staging: ramster: Provide accessory functions for counter decreaseWanpeng Li1-13/+19
This patch enables these functions to be wrapped and can disable/enable this with CONFIG_DEBUG_FS. Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-11staging: ramster: Provide accessory functions for counter increaseWanpeng Li1-11/+23
This patch enables these functions to be wrapped and can disable/enable this with CONFIG_DEBUG_FS. Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-02drivers: staging: zcache: fix compile errorBob Liu1-0/+5
Because 'ramster_debugfs_init' is not defined if !CONFIG_DEBUG_FS, there is compile error: $ make drivers/staging/zcache/ staging/zcache/ramster/ramster.c: In function ‘ramster_init’: staging/zcache/ramster/ramster.c:981:2: error: implicit declaration of function ‘ramster_debugfs_init’ [-Werror=implicit-function-declaration] This patch fix it and reduce some #ifdef CONFIG_DEBUG_FS in .c files the same way. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Bob Liu <bob.liu@oracle.com> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-13zcache: convert to idr_alloc()Tejun Heo1-15/+10
idr_get_new*() and friends are about to be deprecated. Convert to the new idr_alloc() interface. Only compile tested. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Dan Magenheimer <dan.magenheimer@oracle.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-15ramster: Fix compile warnings due to usage of debugfs_create_size_tKonrad Rzeszutek Wilk1-17/+17
We get tons of "note: expected ‘size_t *’ but argument is of type ‘long int *’" warnings. This fixes it. Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-18staging: zcache: rename ramster to zcacheDan Magenheimer13-0/+6266
[V2: no code changes, patchset now generated via git format-patch -M] In staging, rename ramster to zcache The original zcache in staging was a "demo" version, and this new zcache is a significant rewrite. While certain disagreements were being resolved, both "old zcache" and "new zcache" needed to reside in the staging tree simultaneously. In order to minimize code change and churn, the newer version of zcache was temporarily merged into the "ramster" staging driver which, prior to that, had at one time heavily leveraged the older version of zcache. So, recently, "new zcache" resided in the ramster directory. Got that? No? Sorry, temporary political compromises are rarely pretty. The older version of zcache is no longer being maintained and has now been removed from the staging tree. So now the newer version of zcache can rightfully reclaim sole possession of the name "zcache". FYI, this [PATCH 2/5] is simply a "git mv" generated by "git format-patch -M". Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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