From: "Uladzislau Rezki (Sony)" <urezki@xxxxxxxxx> Subject: mm/page_alloc: add an alloc_pages_bulk_array_node() helper 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/20210516202056.2120-1-urezki@xxxxxxxxx Link: https://lkml.kernel.org/r/20210516202056.2120-2-urezki@xxxxxxxxx Signed-off-by: Uladzislau Rezki (Sony) <urezki@xxxxxxxxx> Acked-by: Mel Gorman <mgorman@xxxxxxx> Cc: Mel Gorman <mgorman@xxxxxxx> Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx> Cc: Nicholas Piggin <npiggin@xxxxxxxxx> Cc: Hillf Danton <hdanton@xxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxxx> Cc: Oleksiy Avramchenko <oleksiy.avramchenko@xxxxxxxxxxxxxx> Cc: Steven Rostedt <rostedt@xxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/gfp.h | 9 +++++++++ 1 file changed, 9 insertions(+) --- a/include/linux/gfp.h~mm-page_alloc-add-an-alloc_pages_bulk_array_node-helper +++ a/include/linux/gfp.h @@ -536,6 +536,15 @@ alloc_pages_bulk_array(gfp_t gfp, unsign 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(). _
