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mm/page_alloc: add an alloc_pages_bulk_array_node() helper

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Patch series "vmalloc() vs bulk allocator", v2.

This patch (of 3):

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.

Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Uladzislau Rezki (Sony) <[email protected]>
Acked-by: Mel Gorman <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Hillf Danton <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Oleksiy Avramchenko <[email protected]>
Cc: Steven Rostedt <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Uladzislau Rezki (Sony) authored and Linus Torvalds committed 2021-06-29 10:53:52 -07:00
1 parent 53d884a667
commit a2afc59fb2
1 file changed
+9
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include/linux/gfp.h
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@@ -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().