On Fri 03-05-19 22:05:00, Alexey Dobriyan wrote:
> The field is only used in swap code.
>
> Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
> ---
>
> include/linux/mm_types.h | 2 ++
> 1 file changed, 2 insertions(+)
>
> --- a/include/linux/mm_types.h
> +++ b/include/linux/mm_types.h
> @@ -326,7 +326,9 @@ struct vm_area_struct {
> struct file * vm_file; /* File we map to (can be NULL). */
> void * vm_private_data; /* was vm_pte (shared mem) */
>
> +#ifdef CONFIG_SWAP
> atomic_long_t swap_readahead_info;
> +#endif
> #ifndef CONFIG_MMU
> struct vm_region *vm_region; /* NOMMU mapping region */
> #endif
--
Michal Hocko
SUSE Labs
