From 8907de5dc6e9d5925cf3b0a698cc3a4272fda073 Mon Sep 17 00:00:00 2001 From: Srikar Dronamraju Date: Fri, 7 Oct 2016 16:59:18 -0700 Subject: mm/memblock.c: expose total reserved memory The total reserved memory in a system is accounted but not available for use use outside mm/memblock.c. By exposing the total reserved memory, systems can better calculate the size of large hashes. Link: http://lkml.kernel.org/r/1472476010-4709-3-git-send-email-srikar@linux.vnet.ibm.com Signed-off-by: Srikar Dronamraju Suggested-by: Mel Gorman Cc: Vlastimil Babka Cc: Michal Hocko Cc: Michael Ellerman Cc: Mahesh Salgaonkar Cc: Hari Bathini Cc: Dave Hansen Cc: Balbir Singh Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memblock.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'mm/memblock.c') diff --git a/mm/memblock.c b/mm/memblock.c index 483197ef613f..c8dfa430342b 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -1438,6 +1438,11 @@ phys_addr_t __init_memblock memblock_phys_mem_size(void) return memblock.memory.total_size; } +phys_addr_t __init_memblock memblock_reserved_size(void) +{ + return memblock.reserved.total_size; +} + phys_addr_t __init memblock_mem_size(unsigned long limit_pfn) { unsigned long pages = 0; -- cgit v1.2.3