From: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx> Subject: hugetlb: remove redundant VM_BUG_ON() in add_reservation_in_range() When calling hugetlb_resv_map_add(), we've guaranteed that the parameter 'to' is always larger than 'from', so it never returns a negative value from hugetlb_resv_map_add(). Thus remove the redundant VM_BUG_ON(). Link: https://lkml.kernel.org/r/2b565552f3d06753da1e8dda439c0d96d6d9a5a3.1634797639.git.baolin.wang@xxxxxxxxxxxxxxxxx Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx> Reviewed-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/hugetlb.c | 1 - 1 file changed, 1 deletion(-) --- a/mm/hugetlb.c~hugetlb-remove-redundant-vm_bug_on-in-add_reservation_in_range +++ a/mm/hugetlb.c @@ -445,7 +445,6 @@ static long add_reservation_in_range(str add += hugetlb_resv_map_add(resv, rg, last_accounted_offset, t, h, h_cg, regions_needed); - VM_BUG_ON(add < 0); return add; } _
