BMC/Intel-BMC/linux.git/arch/m68k/mm/init.c, branch dev

m68k/mm: Eliminate memset after alloc_bootmem_pages

2014-11-10T08:56:44+00:00

alloc_bootmem and related functions always return a zeroed region of memory. Thus a memset after calls to these functions is unnecessary. The following Coccinelle semantic patch was used for making the change: @@ expression E,E1; @@ E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\)(...) ... when != E - memset(E,0,E1); Signed-off-by: Himangi Saraogi Acked-by: Julia Lawall Signed-off-by: Geert Uytterhoeven

m68k/UAPI: Move generic definitions to

2013-11-26T10:09:16+00:00

Move generic definitions used by bootstraps to uapi/asm/bootinfo.h: - Machine types, - CPU, FPU, and MMU types, - struct mem_info. Keep a copy of struct mem_info for in-kernel use, and rename it to struct m68k_mem_info, as the exported one will be modified later. Signed-off-by: Geert Uytterhoeven

mm/m68k: fix build warning of unused variable

2013-07-03T23:07:39+00:00

Fix build warning of unused variable: arch/m68k/mm/init.c: In function 'mem_init': arch/m68k/mm/init.c:151:6: warning: unused variable 'i' [-Wunused-variable] Signed-off-by: Jiang Liu Cc: Geert Uytterhoeven Cc: Greg Ungerer Cc: Thadeu Lima de Souza Cascardo Cc: Sergei Shtylyov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mm/m68k: prepare for killing free_all_bootmem_node()

2013-07-03T23:07:38+00:00

Prepare for killing free_all_bootmem_node() by using free_all_bootmem(). Signed-off-by: Jiang Liu Cc: Geert Uytterhoeven Cc: Greg Ungerer Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mm/m68k: prepare for removing num_physpages and simplify mem_init()

2013-07-03T23:07:36+00:00

Prepare for removing num_physpages and simplify mem_init(). Signed-off-by: Jiang Liu Acked-by: Greg Ungerer Cc: Geert Uytterhoeven Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mm: concentrate modification of totalram_pages into the mm core

2013-07-03T23:07:33+00:00

Concentrate code to modify totalram_pages into the mm core, so the arch memory initialized code doesn't need to take care of it. With these changes applied, only following functions from mm core modify global variable totalram_pages: free_bootmem_late(), free_all_bootmem(), free_all_bootmem_node(), adjust_managed_page_count(). With this patch applied, it will be much more easier for us to keep totalram_pages and zone->managed_pages in consistence. Signed-off-by: Jiang Liu Acked-by: David Howells Cc: "H. Peter Anvin" Cc: "Michael S. Tsirkin" Cc: Cc: Arnd Bergmann Cc: Catalin Marinas Cc: Chris Metcalf Cc: Geert Uytterhoeven Cc: Ingo Molnar Cc: Jeremy Fitzhardinge Cc: Jianguo Wu Cc: Joonsoo Kim Cc: Kamezawa Hiroyuki Cc: Konrad Rzeszutek Wilk Cc: Marek Szyprowski Cc: Mel Gorman Cc: Michel Lespinasse Cc: Minchan Kim Cc: Rik van Riel Cc: Rusty Russell Cc: Tang Chen Cc: Tejun Heo Cc: Thomas Gleixner Cc: Wen Congyang Cc: Will Deacon Cc: Yasuaki Ishimatsu Cc: Yinghai Lu Cc: Russell King Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mm: enhance free_reserved_area() to support poisoning memory with zero

2013-07-03T23:07:32+00:00

Address more review comments from last round of code review. 1) Enhance free_reserved_area() to support poisoning freed memory with pattern '0'. This could be used to get rid of poison_init_mem() on ARM64. 2) A previous patch has disabled memory poison for initmem on s390 by mistake, so restore to the original behavior. 3) Remove redundant PAGE_ALIGN() when calling free_reserved_area(). Signed-off-by: Jiang Liu Cc: Geert Uytterhoeven Cc: "H. Peter Anvin" Cc: "Michael S. Tsirkin" Cc: Cc: Arnd Bergmann Cc: Catalin Marinas Cc: Chris Metcalf Cc: David Howells Cc: Ingo Molnar Cc: Jeremy Fitzhardinge Cc: Jianguo Wu Cc: Joonsoo Kim Cc: Kamezawa Hiroyuki Cc: Konrad Rzeszutek Wilk Cc: Marek Szyprowski Cc: Mel Gorman Cc: Michel Lespinasse Cc: Minchan Kim Cc: Rik van Riel Cc: Rusty Russell Cc: Tang Chen Cc: Tejun Heo Cc: Thomas Gleixner Cc: Wen Congyang Cc: Will Deacon Cc: Yasuaki Ishimatsu Cc: Yinghai Lu Cc: Russell King Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mm: change signature of free_reserved_area() to fix building warnings

2013-07-03T23:07:32+00:00

Change signature of free_reserved_area() according to Russell King's suggestion to fix following build warnings: arch/arm/mm/init.c: In function 'mem_init': arch/arm/mm/init.c:603:2: warning: passing argument 1 of 'free_reserved_area' makes integer from pointer without a cast [enabled by default] free_reserved_area(__va(PHYS_PFN_OFFSET), swapper_pg_dir, 0, NULL); ^ In file included from include/linux/mman.h:4:0, from arch/arm/mm/init.c:15: include/linux/mm.h:1301:22: note: expected 'long unsigned int' but argument is of type 'void *' extern unsigned long free_reserved_area(unsigned long start, unsigned long end, mm/page_alloc.c: In function 'free_reserved_area': >> mm/page_alloc.c:5134:3: warning: passing argument 1 of 'virt_to_phys' makes pointer from integer without a cast [enabled by default] In file included from arch/mips/include/asm/page.h:49:0, from include/linux/mmzone.h:20, from include/linux/gfp.h:4, from include/linux/mm.h:8, from mm/page_alloc.c:18: arch/mips/include/asm/io.h:119:29: note: expected 'const volatile void *' but argument is of type 'long unsigned int' mm/page_alloc.c: In function 'free_area_init_nodes': mm/page_alloc.c:5030:34: warning: array subscript is below array bounds [-Warray-bounds] Also address some minor code review comments. Signed-off-by: Jiang Liu Reported-by: Arnd Bergmann Cc: "H. Peter Anvin" Cc: "Michael S. Tsirkin" Cc: Cc: Catalin Marinas Cc: Chris Metcalf Cc: David Howells Cc: Geert Uytterhoeven Cc: Ingo Molnar Cc: Jeremy Fitzhardinge Cc: Jianguo Wu Cc: Joonsoo Kim Cc: Kamezawa Hiroyuki Cc: Konrad Rzeszutek Wilk Cc: Marek Szyprowski Cc: Mel Gorman Cc: Michel Lespinasse Cc: Minchan Kim Cc: Rik van Riel Cc: Rusty Russell Cc: Tang Chen Cc: Tejun Heo Cc: Thomas Gleixner Cc: Wen Congyang Cc: Will Deacon Cc: Yasuaki Ishimatsu Cc: Yinghai Lu Cc: Russell King Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mm/m68k: use common help functions to free reserved pages

2013-04-29T22:54:30+00:00

Use common help functions to free reserved pages. Signed-off-by: Jiang Liu Acked-by: Geert Uytterhoeven Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

m68knommu: fix build when CPU is not coldfire

2013-03-04T01:08:39+00:00

Commit dd1cb3a7c43508c29e17836628090c0735bd3137 [merge MMU and non-MMU versions of mm/init.c] unified mm/init.c for both MMU and non-MMU m68k platforms. However, it broke when we build a non-MMU M68K Classic CPU kernel. This fix builds a section that came from the MMU version only when we are building a MMU kernel. Signed-off-by: Thadeu Lima de Souza Cascardo Signed-off-by: Greg Ungerer