[PATCH 1/3] mm/page_alloc: Add an alloc_pages_bulk_array_node() helper
From: "Uladzislau Rezki (Sony)" <urezki@gmail.com>
Date: 2021-05-16 20:24:03
Also in:
lkml
Subsystem:
memory management - core, memory management - page allocator, the rest · Maintainers:
Andrew Morton, David Hildenbrand, Vlastimil Babka, Linus Torvalds
Add a "node" variant of the alloc_pages_bulk_array() function. The helper guarantees that a __alloc_pages_bulk() is invoked with a valid NUMA node ID. Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com> Acked-by: Mel Gorman <mgorman@suse.de> --- include/linux/gfp.h | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 11da8af06704..94f0b8b1cb55 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h@@ -536,6 +536,15 @@ alloc_pages_bulk_array(gfp_t gfp, unsigned long nr_pages, struct page **page_arr return __alloc_pages_bulk(gfp, numa_mem_id(), NULL, nr_pages, NULL, page_array); } +static inline unsigned long +alloc_pages_bulk_array_node(gfp_t gfp, int nid, unsigned long nr_pages, struct page **page_array) +{ + if (nid == NUMA_NO_NODE) + nid = numa_mem_id(); + + return __alloc_pages_bulk(gfp, nid, NULL, nr_pages, NULL, page_array); +} + /* * Allocate pages, preferring the node given as nid. The node must be valid and * online. For more general interface, see alloc_pages_node().
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2.20.1