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authorPaul Moore <pmoore@redhat.com>2014-06-17 17:30:23 -0400
committerPaul Moore <pmoore@redhat.com>2014-06-17 17:30:23 -0400
commit170b5910d9fbea79de1bb40df22eda5f98250c0c (patch)
treeca9560e878d2842d45c6f99077d0d8b8f8b0f9ba /drivers/infiniband/hw/mlx4/mr.c
parent47dd0b76ace953bd2c0479076db0d3e3b9594003 (diff)
parent1860e379875dfe7271c649058aeddffe5afd9d0d (diff)
Merge tag 'v3.15' into next
Linux 3.15
Diffstat (limited to 'drivers/infiniband/hw/mlx4/mr.c')
-rw-r--r--drivers/infiniband/hw/mlx4/mr.c39
1 files changed, 19 insertions, 20 deletions
diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c
index e471f089ff0..cb2a8727f3f 100644
--- a/drivers/infiniband/hw/mlx4/mr.c
+++ b/drivers/infiniband/hw/mlx4/mr.c
@@ -90,11 +90,11 @@ int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
struct ib_umem *umem)
{
u64 *pages;
- struct ib_umem_chunk *chunk;
- int i, j, k;
+ int i, k, entry;
int n;
int len;
int err = 0;
+ struct scatterlist *sg;
pages = (u64 *) __get_free_page(GFP_KERNEL);
if (!pages)
@@ -102,26 +102,25 @@ int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
i = n = 0;
- list_for_each_entry(chunk, &umem->chunk_list, list)
- for (j = 0; j < chunk->nmap; ++j) {
- len = sg_dma_len(&chunk->page_list[j]) >> mtt->page_shift;
- for (k = 0; k < len; ++k) {
- pages[i++] = sg_dma_address(&chunk->page_list[j]) +
- umem->page_size * k;
- /*
- * Be friendly to mlx4_write_mtt() and
- * pass it chunks of appropriate size.
- */
- if (i == PAGE_SIZE / sizeof (u64)) {
- err = mlx4_write_mtt(dev->dev, mtt, n,
- i, pages);
- if (err)
- goto out;
- n += i;
- i = 0;
- }
+ for_each_sg(umem->sg_head.sgl, sg, umem->nmap, entry) {
+ len = sg_dma_len(sg) >> mtt->page_shift;
+ for (k = 0; k < len; ++k) {
+ pages[i++] = sg_dma_address(sg) +
+ umem->page_size * k;
+ /*
+ * Be friendly to mlx4_write_mtt() and
+ * pass it chunks of appropriate size.
+ */
+ if (i == PAGE_SIZE / sizeof (u64)) {
+ err = mlx4_write_mtt(dev->dev, mtt, n,
+ i, pages);
+ if (err)
+ goto out;
+ n += i;
+ i = 0;
}
}
+ }
if (i)
err = mlx4_write_mtt(dev->dev, mtt, n, i, pages);