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ia64 / sba_iommu: Use NUMA_NO_NODE, not MAX_NUMNODES, for unknown node

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MAX_NUMNODES is typically used for sizing arrays.  NUMA_NO_NODE is the
usual value for "we don't know what node this is on," e.g., it is the
error return from acpi_get_node().

This changes the ioc->node value for unknown nodes from MAX_NUMNODES to
NUMA_NO_NODE.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Bjorn Helgaas 2014-01-24 14:42:33 -07:00
parent ab6ffce35b
commit 10ee3d7032
1 changed files with 8 additions and 6 deletions
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14
arch/ia64/hp/common/sba_iommu.c
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@ -1140,11 +1140,13 @@ sba_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
#ifdef CONFIG_NUMA
{
int node = ioc->node;
struct page *page;
page = alloc_pages_exact_node(ioc->node == MAX_NUMNODES ?
numa_node_id() : ioc->node, flags,
get_order(size));
if (node == NUMA_NO_NODE)
node = numa_node_id();
page = alloc_pages_exact_node(node, flags, get_order(size));
if (unlikely(!page))
return NULL;
@ -1914,7 +1916,7 @@ ioc_show(struct seq_file *s, void *v)
seq_printf(s, "Hewlett Packard %s IOC rev %d.%d\n",
ioc->name, ((ioc->rev >> 4) & 0xF), (ioc->rev & 0xF));
#ifdef CONFIG_NUMA
if (ioc->node != MAX_NUMNODES)
if (ioc->node != NUMA_NO_NODE)
seq_printf(s, "NUMA node : %d\n", ioc->node);
#endif
seq_printf(s, "IOVA size : %ld MB\n", ((ioc->pdir_size >> 3) * iovp_size)/(1024*1024));
@ -2022,7 +2024,7 @@ sba_map_ioc_to_node(struct ioc *ioc, acpi_handle handle)
unsigned int node;
int pxm;
ioc->node = MAX_NUMNODES;
ioc->node = NUMA_NO_NODE;
pxm = acpi_get_pxm(handle);
@ -2031,7 +2033,7 @@ sba_map_ioc_to_node(struct ioc *ioc, acpi_handle handle)
node = pxm_to_node(pxm);
if (node >= MAX_NUMNODES || !node_online(node))
if (node == NUMA_NO_NODE || !node_online(node))
return;
ioc->node = node;