On 2/25/21 4:06 PM, Matthew Wilcox (Oracle) wrote:
> The current formatting doesn't quite work with kernel-doc.
>
> Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
> ---
> mm/mempolicy.c | 34 +++++++++++++---------------------
> 1 file changed, 13 insertions(+), 21 deletions(-)
>
> diff --git a/mm/mempolicy.c b/mm/mempolicy.c
> index 24c2100fccba..6d0fe85d4f8d 100644
> --- a/mm/mempolicy.c
> +++ b/mm/mempolicy.c
> @@ -2153,30 +2153,22 @@ static struct page *alloc_page_interleave(gfp_t gfp, unsigned order,
> }
>
> /**
> - * alloc_pages_vma - Allocate a page for a VMA.
> - *
> - * @gfp:
> - * %GFP_USER user allocation.
> - * %GFP_KERNEL kernel allocations,
> - * %GFP_HIGHMEM highmem/user allocations,
> - * %GFP_FS allocation should not call back into a file system.
> - * %GFP_ATOMIC don't sleep.
> + * alloc_pages_vma - Allocate a page for a VMA.
> + * @gfp: GFP flags.
> + * @order: Order of the GFP allocation.
> + * @vma: Pointer to VMA or NULL if not available.
> + * @addr: Virtual address of the allocation. Must be inside @vma.
> + * @node: Which node to prefer for allocation (modulo policy).
> + * @hugepage: For hugepages try only the preferred node if possible.
> *
> - * @order:Order of the GFP allocation.
> - * @vma: Pointer to VMA or NULL if not available.
> - * @addr: Virtual Address of the allocation. Must be inside the VMA.
> - * @node: Which node to prefer for allocation (modulo policy).
> - * @hugepage: for hugepages try only the preferred node if possible
> + * Allocate a page for a specific address in @vma, using the appropriate
> + * NUMA policy. When @vma is not NULL the caller must hold the mmap_lock
> + * of the mm_struct of the VMA to prevent it from going away. Should be
> + * used for all allocations for pages that will be mapped into user space.
> *
> - * This function allocates a page from the kernel page pool and applies
> - * a NUMA policy associated with the VMA or the current process.
> - * When VMA is not NULL caller must read-lock the mmap_lock of the
> - * mm_struct of the VMA to prevent it from going away. Should be used for
> - * all allocations for pages that will be mapped into user space. Returns
> - * NULL when no page can be allocated.
> + * Return: The page on success or NULL if allocation fails.
> */
> -struct page *
> -alloc_pages_vma(gfp_t gfp, int order, struct vm_area_struct *vma,
> +struct page *alloc_pages_vma(gfp_t gfp, int order, struct vm_area_struct *vma,
> unsigned long addr, int node, bool hugepage)
> {
> struct mempolicy *pol;
>
