Instead, use the cached copy of the attributes present on the device.
Based on a patch from Christoph Hellwig <h...@lst.de>
Signed-off-by: Or Gerlitz <ogerl...@mellanox.com>
---
drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c | 21 +--------------------
1 file changed, 1 insertion(+), 20 deletions(-)
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
index 7c730e3..7231ef8 100644
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
@@ -2070,32 +2070,13 @@ static int kiblnd_net_init_pools(kib_net_t *net, __u32
*cpts, int ncpts)
static int kiblnd_hdev_get_attr(kib_hca_dev_t *hdev)
{
- struct ib_device_attr *attr;
- int rc;
-
/* It's safe to assume a HCA can handle a page size
* matching that of the native system */
hdev->ibh_page_shift = PAGE_SHIFT;
hdev->ibh_page_size = 1 << PAGE_SHIFT;
hdev->ibh_page_mask = ~((__u64)hdev->ibh_page_size - 1);
- LIBCFS_ALLOC(attr, sizeof(*attr));
- if (attr == NULL) {
- CERROR("Out of memory\n");
- return -ENOMEM;
- }
-
- rc = ib_query_device(hdev->ibh_ibdev, attr);
- if (rc == 0)
- hdev->ibh_mr_size = attr->max_mr_size;
-
- LIBCFS_FREE(attr, sizeof(*attr));
-
- if (rc != 0) {
- CERROR("Failed to query IB device: %d\n", rc);
- return rc;
- }
-
+ hdev->ibh_mr_size = hdev->ibh_ibdev->attrs.max_mr_size;
if (hdev->ibh_mr_size == ~0ULL) {
hdev->ibh_mr_shift = 64;
return 0;
--
2.3.7
--
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