From 83285c72e08c42848808039ef2d3b67a1bb88832 Mon Sep 17 00:00:00 2001 From: Xishi Qiu Date: Tue, 12 Nov 2013 15:07:19 -0800 Subject: [PATCH] mm: use pgdat_end_pfn() to simplify the code in others Use "pgdat_end_pfn()" instead of "pgdat->node_start_pfn + pgdat->node_spanned_pages". Simplify the code, no functional change. Signed-off-by: Xishi Qiu Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/proc/kcore.c | 3 +-- mm/bootmem.c | 2 +- mm/memory_hotplug.c | 9 ++++----- 3 files changed, 6 insertions(+), 8 deletions(-) diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c index 06ea155e1a59..5ed0e52d6aa0 100644 --- a/fs/proc/kcore.c +++ b/fs/proc/kcore.c @@ -255,8 +255,7 @@ static int kcore_update_ram(void) end_pfn = 0; for_each_node_state(nid, N_MEMORY) { unsigned long node_end; - node_end = NODE_DATA(nid)->node_start_pfn + - NODE_DATA(nid)->node_spanned_pages; + node_end = node_end_pfn(nid); if (end_pfn < node_end) end_pfn = node_end; } diff --git a/mm/bootmem.c b/mm/bootmem.c index 6ab7744e692e..95b528cd4de7 100644 --- a/mm/bootmem.c +++ b/mm/bootmem.c @@ -784,7 +784,7 @@ void * __init __alloc_bootmem_node_high(pg_data_t *pgdat, unsigned long size, return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id); /* update goal according ...MAX_DMA32_PFN */ - end_pfn = pgdat->node_start_pfn + pgdat->node_spanned_pages; + end_pfn = pgdat_end_pfn(pgdat); if (end_pfn > MAX_DMA32_PFN + (128 >> (20 - PAGE_SHIFT)) && (goal >> PAGE_SHIFT) < MAX_DMA32_PFN) { diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index ed85fe3870e2..375a42d76b2c 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -365,8 +365,7 @@ out_fail: static void grow_pgdat_span(struct pglist_data *pgdat, unsigned long start_pfn, unsigned long end_pfn) { - unsigned long old_pgdat_end_pfn = - pgdat->node_start_pfn + pgdat->node_spanned_pages; + unsigned long old_pgdat_end_pfn = pgdat_end_pfn(pgdat); if (!pgdat->node_spanned_pages || start_pfn < pgdat->node_start_pfn) pgdat->node_start_pfn = start_pfn; @@ -579,9 +578,9 @@ static void shrink_zone_span(struct zone *zone, unsigned long start_pfn, static void shrink_pgdat_span(struct pglist_data *pgdat, unsigned long start_pfn, unsigned long end_pfn) { - unsigned long pgdat_start_pfn = pgdat->node_start_pfn; - unsigned long pgdat_end_pfn = - pgdat->node_start_pfn + pgdat->node_spanned_pages; + unsigned long pgdat_start_pfn = pgdat->node_start_pfn; + unsigned long p = pgdat_end_pfn(pgdat); /* pgdat_end_pfn namespace clash */ + unsigned long pgdat_end_pfn = p; unsigned long pfn; struct mem_section *ms; int nid = pgdat->node_id; -- 2.20.1