diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 13447cf663c23dbc89150ff9aeecaf6887275d50..1b05836bbb0aa3afe2b9cb22cf6a06264143f958 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -2239,19 +2239,18 @@ alloc_pages_vma(gfp_t gfp, int order, struct vm_area_struct *vma, EXPORT_SYMBOL(alloc_pages_vma); /** - * alloc_pages - Allocate pages. + * alloc_pages - Allocate pages. + * @gfp: GFP flags. + * @order: Power of two of number of pages to allocate. * - * @gfp: - * %GFP_USER user allocation, - * %GFP_KERNEL kernel allocation, - * %GFP_HIGHMEM highmem allocation, - * %GFP_FS don't call back into a file system. - * %GFP_ATOMIC don't sleep. - * @order: Power of two of allocation size in pages. 0 is a single page. + * Allocate 1 << @order contiguous pages. The physical address of the + * first page is naturally aligned (eg an order-3 allocation will be aligned + * to a multiple of 8 * PAGE_SIZE bytes). The NUMA policy of the current + * process is honoured when in process context. * - * Allocate a page from the kernel page pool. When not in - * interrupt context and apply the current process NUMA policy. - * Returns NULL when no page can be allocated. + * Context: Can be called from any context, providing the appropriate GFP + * flags are used. + * Return: The page on success or NULL if allocation fails. */ struct page *alloc_pages(gfp_t gfp, unsigned order) {