From: Mike Rapoport <rppt@xxxxxxxxxxxxx> The find_min_pfn_with_active_regions() calls find_min_pfn_for_node() with nid parameter set to MAX_NUMNODES. This makes the find_min_pfn_for_node() traverse all memblock memory regions although the first PFN in the system can be easily found with memblock_start_of_DRAM(). Use memblock_start_of_DRAM() in find_min_pfn_with_active_regions() and drop now unused find_min_pfn_for_node(). Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxxxxx> --- mm/page_alloc.c | 20 +------------------- 1 file changed, 1 insertion(+), 19 deletions(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 9af27ee784c7..e83f28d6074a 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -7071,24 +7071,6 @@ unsigned long __init node_map_pfn_alignment(void) return ~accl_mask + 1; } -/* Find the lowest pfn for a node */ -static unsigned long __init find_min_pfn_for_node(int nid) -{ - unsigned long min_pfn = ULONG_MAX; - unsigned long start_pfn; - int i; - - for_each_mem_pfn_range(i, nid, &start_pfn, NULL, NULL) - min_pfn = min(min_pfn, start_pfn); - - if (min_pfn == ULONG_MAX) { - pr_warn("Could not find start_pfn for node %d\n", nid); - return 0; - } - - return min_pfn; -} - /** * find_min_pfn_with_active_regions - Find the minimum PFN registered * @@ -7097,7 +7079,7 @@ static unsigned long __init find_min_pfn_for_node(int nid) */ unsigned long __init find_min_pfn_with_active_regions(void) { - return find_min_pfn_for_node(MAX_NUMNODES); + return PHYS_PFN(memblock_start_of_DRAM()); } /* -- 2.25.1 _______________________________________________ linux-snps-arc mailing list linux-snps-arc@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-snps-arc