On Mon, May 09, 2022 at 09:14:06PM +0800, Miaohe Lin wrote: > If offset exceeds the si->max, print bad swap offset entry to help debug > the unexpected case. > > Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx> Reviewed-by: Oscar Salvador <osalvador@xxxxxxx> > --- > mm/swapfile.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/mm/swapfile.c b/mm/swapfile.c > index 0aee6286d6a7..d4b81ca887c0 100644 > --- a/mm/swapfile.c > +++ b/mm/swapfile.c > @@ -1272,6 +1272,7 @@ struct swap_info_struct *get_swap_device(swp_entry_t entry) > out: > return NULL; > put_out: > + pr_err("%s: %s%08lx\n", __func__, Bad_offset, entry.val); > percpu_ref_put(&si->users); > return NULL; > } > -- > 2.23.0 > > -- Oscar Salvador SUSE Labs