diff options
Diffstat (limited to 'arch/x86_64/mm/srat.c')
| -rw-r--r-- | arch/x86_64/mm/srat.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/arch/x86_64/mm/srat.c b/arch/x86_64/mm/srat.c index 15ae9fcd65a7..474df22c6ed2 100644 --- a/arch/x86_64/mm/srat.c +++ b/arch/x86_64/mm/srat.c @@ -34,7 +34,10 @@ static nodemask_t nodes_found __initdata; static struct bootnode nodes[MAX_NUMNODES] __initdata; static struct bootnode nodes_add[MAX_NUMNODES] __initdata; static int found_add_area __initdata; -int hotadd_percent __initdata = 10; +int hotadd_percent __initdata = 0; +#ifndef RESERVE_HOTADD +#define hotadd_percent 0 /* Ignore all settings */ +#endif static u8 pxm2node[256] = { [0 ... 255] = 0xff }; /* Too small nodes confuse the VM badly. Usually they result @@ -103,6 +106,7 @@ static __init void bad_srat(void) int i; printk(KERN_ERR "SRAT: SRAT not used.\n"); acpi_numa = -1; + found_add_area = 0; for (i = 0; i < MAX_LOCAL_APIC; i++) apicid_to_node[i] = NUMA_NO_NODE; for (i = 0; i < MAX_NUMNODES; i++) @@ -154,7 +158,8 @@ acpi_numa_processor_affinity_init(struct acpi_table_processor_affinity *pa) int pxm, node; if (srat_disabled()) return; - if (pa->header.length != sizeof(struct acpi_table_processor_affinity)) { bad_srat(); + if (pa->header.length != sizeof(struct acpi_table_processor_affinity)) { + bad_srat(); return; } if (pa->flags.enabled == 0) @@ -191,15 +196,17 @@ static int hotadd_enough_memory(struct bootnode *nd) allowed = (end_pfn - e820_hole_size(0, end_pfn)) * PAGE_SIZE; allowed = (allowed / 100) * hotadd_percent; if (allocated + mem > allowed) { + unsigned long range; /* Give them at least part of their hotadd memory upto hotadd_percent It would be better to spread the limit out over multiple hotplug areas, but that is too complicated right now */ if (allocated >= allowed) return 0; - pages = (allowed - allocated + mem) / sizeof(struct page); + range = allowed - allocated; + pages = (range / PAGE_SIZE); mem = pages * sizeof(struct page); - nd->end = nd->start + pages*PAGE_SIZE; + nd->end = nd->start + range; } /* Not completely fool proof, but a good sanity check */ addr = find_e820_area(last_area_end, end_pfn<<PAGE_SHIFT, mem); @@ -392,8 +399,10 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end) /* First clean up the node list */ for (i = 0; i < MAX_NUMNODES; i++) { cutoff_node(i, start, end); - if ((nodes[i].end - nodes[i].start) < NODE_MIN_SIZE) + if ((nodes[i].end - nodes[i].start) < NODE_MIN_SIZE) { unparse_node(i); + node_set_offline(i); + } } if (acpi_numa <= 0) |