kernel/linux.git/drivers/staging/zsmalloc, branch v3.4.55

staging: zsmalloc: Finish conversion to a separate module

2012-08-09T15:31:37+00:00

commit 069f101fa463351f528773d73b74e9b606b3f66a upstream. ZSMALLOC is tristate, but the code has no MODULE_LICENSE and since it depends on GPL-only symbols it cannot be loaded as a module. This in turn breaks zram which now depends on it. I assume it's meant to be Dual BSD/GPL like the other z-stuff. There is also no module_exit, which will make it impossible to unload. Add the appropriate module_init and module_exit declarations suggested by comments. Reported-by: Christian Ohm References: http://bugs.debian.org/677273 Signed-off-by: Ben Hutchings Reviewed-by: Jonathan Nieder Signed-off-by: Greg Kroah-Hartman

staging: zsmalloc: fix memory leak

2012-04-10T16:18:59+00:00

This patch fixes a memory leak in zsmalloc where the first subpage of each zspage is leaked when the zspage is freed. Signed-off-by: Nitin Gupta Acked-by: Seth Jennings Acked-by: Dan Magenheimer Signed-off-by: Greg Kroah-Hartman

staging: zsmalloc: remove SPARSEMEM dep from Kconfig

2012-03-07T21:31:28+00:00

This patch removes the SPARSEMEM from the zsmalloc Kconfig Signed-off-by: Seth Jennings Acked-by: Nitin Gupta Signed-off-by: Greg Kroah-Hartman

staging: zsmalloc: change ZS_MIN_ALLOC_SIZE

2012-03-07T21:31:28+00:00

This patch ensures that the value of ZS_MIN_ALLOC_SIZE, for the PAGE_SIZE and MAX_PHYSMEM_BITS on the system, allows for all possible object ids in the lowest storage class to be encoded in the object handle. Signed-off-by: Seth Jennings Acked-by: Nitin Gupta Signed-off-by: Greg Kroah-Hartman

staging: zsmalloc: calculate MAX_PHYSMEM_BITS if not defined

2012-03-07T21:31:28+00:00

This patch provides a way to determine or "set a reasonable value for" MAX_PHYSMEM_BITS in the case that it is not defined (i.e. !SPARSEMEM) Signed-off-by: Seth Jennings Acked-by: Nitin Gupta Signed-off-by: Greg Kroah-Hartman

staging: zsmalloc: add ZS_MAX_PAGES_PER_ZSPAGE

2012-03-07T21:31:28+00:00

This patch moves where max_zspage_order is declared and changes its meaning. "Order" typically implies 2^order of something; however, it is currently being used as the "maximum number of single pages in a zspage". To add clarity, ZS_MAX_ZSPAGE_ORDER is now used to calculate ZS_MAX_PAGES_PER_ZSPAGE, which is 2^ZS_MAX_ZSPAGE_ORDER and is the upper bound on the number of pages in a zspage. Signed-off-by: Seth Jennings Acked-by: Nitin Gupta Signed-off-by: Greg Kroah-Hartman

staging: zsmalloc: move object/handle masking defines

2012-03-07T21:31:28+00:00

This patch moves the definitions of _PFN_BITS, OBJ_INDEX_BITS and OBJ_INDEX_MASK from zsmalloc-main.c to zsmalloc_int.h They will be needed to determine ZS_MIN_ALLOC_SIZE in the next patch Signed-off-by: Seth Jennings Acked-by: Nitin Gupta Signed-off-by: Greg Kroah-Hartman

staging: fix powerpc linux-next break on zsmalloc

2012-02-13T14:57:17+00:00

linux/vmalloc.h added to zsmalloc-main.c to resolve implicit declaration errors. X86 dependency added to zsmalloc and dependent drivers zcache and zram. This X86 only requirement is not ideal. Working to find portable functions for __flush_tlb_one and set_pte. Signed-off-by: Seth Jennings Signed-off-by: Greg Kroah-Hartman

staging: zsmalloc: zsmalloc memory allocation library

2012-02-09T01:12:53+00:00

This patch creates a new memory allocation library named zsmalloc. NOTE: zsmalloc currently depends on SPARSEMEM for the MAX_PHYSMEM_BITS value needed to determine the format of the object handle. There may be a better way to do this. Feedback is welcome. Signed-off-by: Nitin Gupta Signed-off-by: Seth Jennings Signed-off-by: Greg Kroah-Hartman