diff options
| author | Xishi Qiu <qiuxishi@huawei.com> | 2013-11-12 15:07:19 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-13 12:09:03 +0900 |
| commit | 83285c72e08c42848808039ef2d3b67a1bb88832 (patch) | |
| tree | 96deaa3deb9a9f5b5b3c5b03f5982eeaea401670 | |
| parent | 6408068ee6ce9d80d66908a2c01a24ee88afd47d (diff) | |
| download | op-kernel-dev-83285c72e08c42848808039ef2d3b67a1bb88832.zip op-kernel-dev-83285c72e08c42848808039ef2d3b67a1bb88832.tar.gz | |
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 <qiuxishi@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/proc/kcore.c | 3 | ||||
| -rw-r--r-- | mm/bootmem.c | 2 | ||||
| -rw-r--r-- | 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 06ea155..5ed0e52 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 6ab7744..95b528c 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 ed85fe3..375a42d 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; |
