diff options
Diffstat (limited to 'drivers/infiniband/hw/mlx5/mem.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mem.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx5/mem.c b/drivers/infiniband/hw/mlx5/mem.c index 996b54e366b0..6851357c16f4 100644 --- a/drivers/infiniband/hw/mlx5/mem.c +++ b/drivers/infiniband/hw/mlx5/mem.c @@ -37,12 +37,15 @@ /* @umem: umem object to scan * @addr: ib virtual address requested by the user + * @max_page_shift: high limit for page_shift - 0 means no limit * @count: number of PAGE_SIZE pages covered by umem * @shift: page shift for the compound pages found in the region * @ncont: number of compund pages * @order: log2 of the number of compound pages */ -void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr, int *count, int *shift, +void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr, + unsigned long max_page_shift, + int *count, int *shift, int *ncont, int *order) { unsigned long tmp; @@ -72,6 +75,8 @@ void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr, int *count, int *shift, addr = addr >> page_shift; tmp = (unsigned long)addr; m = find_first_bit(&tmp, BITS_PER_LONG); + if (max_page_shift) + m = min_t(unsigned long, max_page_shift - page_shift, m); skip = 1 << m; mask = skip - 1; i = 0; |