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Subject[PATCH v3 3/3] mm: use numa_mem_id() in alloc_pages_node()
Date
numa_mem_id() is able to handle allocation from CPUs on memory-less nodes,
so it's a more robust fallback than the currently used numa_node_id().

Suggested-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
---
include/linux/gfp.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 4a12cae2..f92cbd2 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -318,13 +318,14 @@ __alloc_pages_node(int nid, gfp_t gfp_mask, unsigned int order)

/*
* Allocate pages, preferring the node given as nid. When nid == NUMA_NO_NODE,
- * prefer the current CPU's node. Otherwise node must be valid and online.
+ * prefer the current CPU's closest node. Otherwise node must be valid and
+ * online.
*/
static inline struct page *alloc_pages_node(int nid, gfp_t gfp_mask,
unsigned int order)
{
if (nid == NUMA_NO_NODE)
- nid = numa_node_id();
+ nid = numa_mem_id();

return __alloc_pages_node(nid, gfp_mask, order);
}
--
2.4.6


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