Messages in this thread Patch in this message | | | From | "Matthew Wilcox (Oracle)" <> | Subject | [PATCH 08/25] mm: Add __alloc_folio_node and alloc_folio | Date | Wed, 16 Dec 2020 18:23:18 +0000 |
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These wrappers are mostly for typesafety, but they also ensure that the page allocator allocates a compound page.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> --- include/linux/gfp.h | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/include/linux/gfp.h b/include/linux/gfp.h index 53caa9846854..9e416efb4ff8 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -524,6 +524,12 @@ __alloc_pages_node(int nid, gfp_t gfp_mask, unsigned int order) return __alloc_pages(gfp_mask, order, nid); } +static inline +struct folio *__alloc_folio_node(int nid, gfp_t gfp, unsigned int order) +{ + return (struct folio *)__alloc_pages_node(nid, gfp | __GFP_COMP, order); +} + /* * Allocate pages, preferring the node given as nid. When nid == NUMA_NO_NODE, * prefer the current CPU's closest node. Otherwise node must be valid and @@ -565,6 +571,11 @@ static inline struct page *alloc_pages(gfp_t gfp_mask, unsigned int order) #define alloc_page_vma(gfp_mask, vma, addr) \ alloc_pages_vma(gfp_mask, 0, vma, addr, numa_node_id(), false) +static inline struct folio *alloc_folio(gfp_t gfp, unsigned int order) +{ + return (struct folio *)alloc_pages(gfp | __GFP_COMP, order); +} + extern unsigned long __get_free_pages(gfp_t gfp_mask, unsigned int order); extern unsigned long get_zeroed_page(gfp_t gfp_mask); -- 2.29.2
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