diff options
| author |   Leon Romanovsky <leonro@nvidia.com> | 2026-07-16 05:03:31 -0400 |
|---|---|---|
| committer |   Leon Romanovsky <leon@kernel.org> | 2026-07-20 09:45:43 -0400 |
| commit | ce5322367c4bd00e51560ffdc07c6c619952967a (patch) | |
| tree | 48048d9fd1d672640b859e041a67bd35527d7977 | |
| parent | RDMA/cxgb4: use kmalloc() for the PBL address array (diff) | |
RDMA/mlx4: use kzalloc() for the fast registration page list
mlx4_alloc_priv_pages() allocates a zeroed, page-sized buffer for a
DMA-to-device page list. kmalloc() provides the required physical
contiguity, and a PAGE_SIZE allocation retains the alignment needed to
keep the list within one page.
Use kzalloc() for the buffer and kfree() on the error and teardown paths.
Link: https://patch.msgid.link/20260715-get_pages-to-kmalloc-v1-2-b0b7fce288be@nvidia.com
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
| -rw-r--r-- | drivers/infiniband/hw/mlx4/mr.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c index 761e2c05dd0f..a6b4abce1bfe 100644 --- a/drivers/infiniband/hw/mlx4/mr.c +++ b/drivers/infiniband/hw/mlx4/mr.c @@ -313,7 +313,7 @@ mlx4_alloc_priv_pages(struct ib_device *device, MLX4_MR_PAGES_ALIGN); /* Prevent cross page boundary allocation. */ - mr->pages = (__be64 *)get_zeroed_page(GFP_KERNEL); + mr->pages = kzalloc(PAGE_SIZE, GFP_KERNEL); if (!mr->pages) return -ENOMEM; @@ -328,7 +328,7 @@ mlx4_alloc_priv_pages(struct ib_device *device, return 0; err: - free_page((unsigned long)mr->pages); + kfree(mr->pages); return ret; } @@ -340,7 +340,7 @@ mlx4_free_priv_pages(struct mlx4_ib_mr *mr) dma_unmap_single(device->dev.parent, mr->page_map, mr->page_map_size, DMA_TO_DEVICE); - free_page((unsigned long)mr->pages); + kfree(mr->pages); mr->pages = NULL; } } |