Messages in this thread Patch in this message | | | From | Vlastimil Babka <> | Subject | [PATCH v3 3/3] mm: use numa_mem_id() in alloc_pages_node() | Date | Thu, 30 Jul 2015 18:34:31 +0200 |
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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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