diff options
Diffstat (limited to 'mm/mempolicy.c')
| -rw-r--r-- | mm/mempolicy.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index c71532b7e3f8c4..24c2100fccba2d 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -2245,19 +2245,18 @@ out: 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) { |