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Subject[PATCH 13/14] x86-32, NUMA: Remove redundant node_remap_size[]
Date
Remap area size can be determined from node_remap_start_vaddr[] and
node_remap_end_vaddr[] making node_remap_size[] redundant. Remove it.

While at it, make resume_map_numa_kva() use @nr_pages for number of
pages instead of @size.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
---
arch/x86/mm/numa_32.c | 10 ++++------
1 files changed, 4 insertions(+), 6 deletions(-)
diff --git a/arch/x86/mm/numa_32.c b/arch/x86/mm/numa_32.c
index 960ea7b..f325e6f 100644
--- a/arch/x86/mm/numa_32.c
+++ b/arch/x86/mm/numa_32.c
@@ -104,7 +104,6 @@ extern unsigned long highend_pfn, highstart_pfn;

#define LARGE_PAGE_BYTES (PTRS_PER_PTE * PAGE_SIZE)

-static unsigned long node_remap_size[MAX_NUMNODES];
static void *node_remap_start_vaddr[MAX_NUMNODES];
void set_pmd_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags);

@@ -214,15 +213,16 @@ void resume_map_numa_kva(pgd_t *pgd_base)
int node;

for_each_online_node(node) {
- unsigned long start_va, start_pfn, size, pfn;
+ unsigned long start_va, start_pfn, nr_pages, pfn;

start_va = (unsigned long)node_remap_start_vaddr[node];
start_pfn = node_remap_start_pfn[node];
- size = node_remap_size[node];
+ nr_pages = (node_remap_end_vaddr[node] -
+ node_remap_start_vaddr[node]) >> PAGE_SHIFT;

printk(KERN_DEBUG "%s: node %d\n", __func__, node);

- for (pfn = 0; pfn < size; pfn += PTRS_PER_PTE) {
+ for (pfn = 0; pfn < nr_pages; pfn += PTRS_PER_PTE) {
unsigned long vaddr = start_va + (pfn << PAGE_SHIFT);
pgd_t *pgd = pgd_base + pgd_index(vaddr);
pud_t *pud = pud_offset(pgd, vaddr);
@@ -294,8 +294,6 @@ static __init void init_alloc_remap(int nid)

/* initialize remap allocator parameters */
node_remap_start_pfn[nid] = node_pa >> PAGE_SHIFT;
- node_remap_size[nid] = size >> PAGE_SHIFT;
-
node_remap_start_vaddr[nid] = remap_va;
node_remap_end_vaddr[nid] = remap_va + size;
node_remap_alloc_vaddr[nid] = remap_va;
--
1.7.1


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