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Subject[Patch 15/23] mask v2 - [4/7] nodemask_t_pp64_changes
Patch_15_of_23 - Matthew Dobson's [PATCH]_nodemask_t_pp64_changes_[4_7]
Changes to ppc64 specific code. Untested.
Code review & testing requested.

Diffstat Patch_15_of_23:
kernel/smp.c | 20 +++++++++-----------
mm/hugetlbpage.c | 10 +++++-----
mm/init.c | 2 +-
mm/numa.c | 17 +++++------------
4 files changed, 20 insertions(+), 29 deletions(-)

diff -Nurp --exclude-from=/home/mcd/.dontdiff linux-2.6.4-vanilla/arch/ppc64/kernel/smp.c linux-2.6.4-nodemask_t-ppc64/arch/ppc64/kernel/smp.c
--- linux-2.6.4-vanilla/arch/ppc64/kernel/smp.c Wed Mar 10 18:55:37 2004
+++ linux-2.6.4-nodemask_t-ppc64/arch/ppc64/kernel/smp.c Thu Mar 11 16:46:15 2004
@@ -737,19 +737,17 @@ static void register_nodes(void)
int i;
int ret;

- for (i = 0; i < MAX_NUMNODES; i++) {
- if (node_online(i)) {
- int p_node = parent_node(i);
- struct node *parent = NULL;
+ for_each_online_node(i) {
+ int p_node = parent_node(i);
+ struct node *parent = NULL;

- if (p_node != i)
- parent = &node_devices[p_node];
+ if (p_node != i)
+ parent = &node_devices[p_node];

- ret = register_node(&node_devices[i], i, parent);
- if (ret)
- printk(KERN_WARNING "register_nodes: "
- "register_node %d failed (%d)", i, ret);
- }
+ ret = register_node(&node_devices[i], i, parent);
+ if (ret)
+ printk(KERN_WARNING "register_nodes: "
+ "register_node %d failed (%d)", i, ret);
}
}
#else
diff -Nurp --exclude-from=/home/mcd/.dontdiff linux-2.6.4-vanilla/arch/ppc64/mm/hugetlbpage.c linux-2.6.4-nodemask_t-ppc64/arch/ppc64/mm/hugetlbpage.c
--- linux-2.6.4-vanilla/arch/ppc64/mm/hugetlbpage.c Wed Mar 10 18:55:27 2004
+++ linux-2.6.4-nodemask_t-ppc64/arch/ppc64/mm/hugetlbpage.c Thu Mar 11 12:00:08 2004
@@ -56,10 +56,10 @@ static struct page *dequeue_huge_page(vo
if (!largepage_roundrobin)
nid = numa_node_id();

- for (i = 0; i < numnodes; i++) {
+ for_each_online_node(i) {
if (!list_empty(&hugepage_freelists[nid]))
break;
- nid = (nid + 1) % numnodes;
+ nid = (nid + 1) % num_online_nodes();
}

if (!list_empty(&hugepage_freelists[nid])) {
@@ -68,7 +68,7 @@ static struct page *dequeue_huge_page(vo
}

if (largepage_roundrobin)
- nid = (nid + 1) % numnodes;
+ nid = (nid + 1) % num_online_nodes();

return page;
}
@@ -83,7 +83,7 @@ static struct page *alloc_fresh_huge_pag
return NULL;

nid = page_zone(page)->zone_pgdat->node_id;
- nid = (nid + 1) % numnodes;
+ nid = (nid + 1) % num_online_nodes();
return page;
}

@@ -871,7 +871,7 @@ static int __init hugetlb_init(void)
struct page *page;

if (cur_cpu_spec->cpu_features & CPU_FTR_16M_PAGE) {
- for (i = 0; i < MAX_NUMNODES; ++i)
+ for_each_node(i)
INIT_LIST_HEAD(&hugepage_freelists[i]);

for (i = 0; i < htlbpage_max; ++i) {
diff -Nurp --exclude-from=/home/mcd/.dontdiff linux-2.6.4-vanilla/arch/ppc64/mm/init.c linux-2.6.4-nodemask_t-ppc64/arch/ppc64/mm/init.c
--- linux-2.6.4-vanilla/arch/ppc64/mm/init.c Wed Mar 10 18:55:33 2004
+++ linux-2.6.4-nodemask_t-ppc64/arch/ppc64/mm/init.c Thu Mar 11 12:00:08 2004
@@ -639,7 +639,7 @@ void __init mem_init(void)
{
int nid;

- for (nid = 0; nid < numnodes; nid++) {
+ for_each_online_node(nid) {
if (node_data[nid].node_spanned_pages != 0) {
printk("freeing bootmem node %x\n", nid);
totalram_pages +=
diff -Nurp --exclude-from=/home/mcd/.dontdiff linux-2.6.4-vanilla/arch/ppc64/mm/numa.c linux-2.6.4-nodemask_t-ppc64/arch/ppc64/mm/numa.c
--- linux-2.6.4-vanilla/arch/ppc64/mm/numa.c Wed Mar 10 18:55:36 2004
+++ linux-2.6.4-nodemask_t-ppc64/arch/ppc64/mm/numa.c Mon Mar 22 15:41:15 2004
@@ -55,7 +55,6 @@ static int __init parse_numa_properties(
int *cpu_associativity;
int *memory_associativity;
int depth;
- int max_domain = 0;

cpu = of_find_node_by_type(NULL, "cpu");
if (!cpu)
@@ -101,14 +100,11 @@ static int __init parse_numa_properties(
numa_domain = 0;
}

- if (numa_domain >= MAX_NUMNODES)
+ if (!node_possible(numa_domain))
BUG();

node_set_online(numa_domain);

- if (max_domain < numa_domain)
- max_domain = numa_domain;
-
map_cpu_to_node(cpu_nr, numa_domain);
}

@@ -157,11 +153,10 @@ new_range:
numa_domain = 0;
}

- if (numa_domain >= MAX_NUMNODES)
+ if (!node_possible(numa_domain))
BUG();

- if (max_domain < numa_domain)
- max_domain = numa_domain;
+ node_set_online(numa_domain);

/*
* For backwards compatibility, OF splits the first node
@@ -198,8 +193,6 @@ new_range:
goto new_range;
}

- numnodes = max_domain + 1;
-
return 0;
err:
of_node_put(cpu);
@@ -242,7 +235,7 @@ void __init do_init_bootmem(void)
if (parse_numa_properties())
setup_nonnuma();

- for (nid = 0; nid < numnodes; nid++) {
+ for_each_online_node(nid) {
unsigned long start_paddr, end_paddr;
int i;
unsigned long bootmem_paddr;
@@ -329,7 +322,7 @@ void __init paging_init(void)
memset(zones_size, 0, sizeof(zones_size));
memset(zholes_size, 0, sizeof(zholes_size));

- for (nid = 0; nid < numnodes; nid++) {
+ for_each_online_node(nid) {
unsigned long start_pfn;
unsigned long end_pfn;



--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj@sgi.com> 1.650.933.1373
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