On 1/28/21 3:19 AM, Yafang Shao wrote:
> As pGp has been already introduced in printk, we'd better use it to make
> the output human readable.
>
> Before this change, the output is,
> [ 6155.716018] INFO: Slab 0x000000004027dd4f objects=33 used=3 fp=0x000000008cd1579c flags=0x17ffffc0010200
>
> While after this change, the output is,
> [ 8846.517809] INFO: Slab 0x00000000f42a2c60 objects=33 used=3 fp=0x0000000060d32ca8 flags=0x17ffffc0010200(slab|head)
>
> Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
> Signed-off-by: Yafang Shao <laoar.shao@xxxxxxxxx>
Reviewed-by: Vlastimil Babka <vbabka@xxxxxxx>
> ---
> mm/slub.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/mm/slub.c b/mm/slub.c
> index 69742ab9a21d..4b9ab267afbc 100644
> --- a/mm/slub.c
> +++ b/mm/slub.c
> @@ -641,8 +641,9 @@ void print_tracking(struct kmem_cache *s, void *object)
>
> static void print_page_info(struct page *page)
> {
> - pr_err("INFO: Slab 0x%p objects=%u used=%u fp=0x%p flags=0x%04lx\n",
> - page, page->objects, page->inuse, page->freelist, page->flags);
> + pr_err("INFO: Slab 0x%p objects=%u used=%u fp=0x%p flags=%#lx(%pGp)\n",
> + page, page->objects, page->inuse, page->freelist,
> + page->flags, &page->flags);
>
> }
>
>
