From 600cc5b7f6371706679490d7ee108015ae57ac2f Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Fri, 16 Nov 2012 19:39:22 -0800 Subject: mm: Kill NO_BOOTMEM version free_all_bootmem_node() Now NO_BOOTMEM version free_all_bootmem_node() does not really do free_bootmem at all, and it only call register_page_bootmem_info_node for online nodes instead. That is confusing. We can kill that free_all_bootmem_node(), after we kill two callings in x86 and sparc. Signed-off-by: Yinghai Lu Link: http://lkml.kernel.org/r/1353123563-3103-46-git-send-email-yinghai@kernel.org Signed-off-by: H. Peter Anvin --- mm/nobootmem.c | 14 -------------- 1 file changed, 14 deletions(-) (limited to 'mm') diff --git a/mm/nobootmem.c b/mm/nobootmem.c index bd82f6b31411..ecc2f13d557d 100644 --- a/mm/nobootmem.c +++ b/mm/nobootmem.c @@ -137,20 +137,6 @@ unsigned long __init free_low_memory_core_early(int nodeid) return count; } -/** - * free_all_bootmem_node - release a node's free pages to the buddy allocator - * @pgdat: node to be released - * - * Returns the number of pages actually released. - */ -unsigned long __init free_all_bootmem_node(pg_data_t *pgdat) -{ - register_page_bootmem_info_node(pgdat); - - /* free_low_memory_core_early(MAX_NUMNODES) will be called later */ - return 0; -} - /** * free_all_bootmem - release free pages to the buddy allocator * -- cgit v1.2.3 From 595ad9af8584908ea5fb698b836169d05b99f186 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Thu, 24 Jan 2013 12:20:09 -0800 Subject: memblock: Add memblock_mem_size() Use it to get mem size under the limit_pfn. to replace local version in x86 reserved_initrd. -v2: remove not needed cast that is pointed out by HPA. Signed-off-by: Yinghai Lu Link: http://lkml.kernel.org/r/1359058816-7615-29-git-send-email-yinghai@kernel.org Signed-off-by: H. Peter Anvin --- mm/memblock.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'mm') diff --git a/mm/memblock.c b/mm/memblock.c index 88adc8afb610..b8d9147e5c08 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -828,6 +828,23 @@ phys_addr_t __init memblock_phys_mem_size(void) return memblock.memory.total_size; } +phys_addr_t __init memblock_mem_size(unsigned long limit_pfn) +{ + unsigned long pages = 0; + struct memblock_region *r; + unsigned long start_pfn, end_pfn; + + for_each_memblock(memory, r) { + start_pfn = memblock_region_memory_base_pfn(r); + end_pfn = memblock_region_memory_end_pfn(r); + start_pfn = min_t(unsigned long, start_pfn, limit_pfn); + end_pfn = min_t(unsigned long, end_pfn, limit_pfn); + pages += end_pfn - start_pfn; + } + + return (phys_addr_t)pages << PAGE_SHIFT; +} + /* lowest address */ phys_addr_t __init_memblock memblock_start_of_DRAM(void) { -- cgit v1.2.3 From 38fa4175e60d98fb1c9815fb14f8057576dade73 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Thu, 24 Jan 2013 12:20:15 -0800 Subject: mm: Add alloc_bootmem_low_pages_nopanic() We don't need to panic in some case, like for swiotlb preallocating. Signed-off-by: Yinghai Lu Link: http://lkml.kernel.org/r/1359058816-7615-35-git-send-email-yinghai@kernel.org Signed-off-by: H. Peter Anvin --- mm/bootmem.c | 8 ++++++++ mm/nobootmem.c | 8 ++++++++ 2 files changed, 16 insertions(+) (limited to 'mm') diff --git a/mm/bootmem.c b/mm/bootmem.c index b93376c39b61..2b0bcb019ec2 100644 --- a/mm/bootmem.c +++ b/mm/bootmem.c @@ -833,6 +833,14 @@ void * __init __alloc_bootmem_low(unsigned long size, unsigned long align, return ___alloc_bootmem(size, align, goal, ARCH_LOW_ADDRESS_LIMIT); } +void * __init __alloc_bootmem_low_nopanic(unsigned long size, + unsigned long align, + unsigned long goal) +{ + return ___alloc_bootmem_nopanic(size, align, goal, + ARCH_LOW_ADDRESS_LIMIT); +} + /** * __alloc_bootmem_low_node - allocate low boot memory from a specific node * @pgdat: node to allocate from diff --git a/mm/nobootmem.c b/mm/nobootmem.c index 03d152a76acf..5e07d36e381e 100644 --- a/mm/nobootmem.c +++ b/mm/nobootmem.c @@ -391,6 +391,14 @@ void * __init __alloc_bootmem_low(unsigned long size, unsigned long align, return ___alloc_bootmem(size, align, goal, ARCH_LOW_ADDRESS_LIMIT); } +void * __init __alloc_bootmem_low_nopanic(unsigned long size, + unsigned long align, + unsigned long goal) +{ + return ___alloc_bootmem_nopanic(size, align, goal, + ARCH_LOW_ADDRESS_LIMIT); +} + /** * __alloc_bootmem_low_node - allocate low boot memory from a specific node * @pgdat: node to allocate from -- cgit v1.2.3