The caller might not want this overhead.
Reviewed-by: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
Reviewed-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
Signed-off-by: Sagi Grimberg <sagi@xxxxxxxxxxx>
---
drivers/infiniband/core/cq.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/core/cq.c b/drivers/infiniband/core/cq.c
index e95510117a6d..b9c4cefe90c1 100644
--- a/drivers/infiniband/core/cq.c
+++ b/drivers/infiniband/core/cq.c
@@ -29,7 +29,13 @@ static int __ib_process_cq(struct ib_cq *cq, int budget)
{
int i, n, completed = 0;
- while ((n = ib_poll_cq(cq, IB_POLL_BATCH, cq->wc)) > 0) {
+ /*
+ * budget might be (-1) if the caller does not
+ * want to bound this call, thus we need unsigned
+ * minimum here.
+ */
+ while ((n = ib_poll_cq(cq, min_t(u32, IB_POLL_BATCH,
+ budget - completed), cq->wc)) > 0) {
for (i = 0; i < n; i++) {
struct ib_wc *wc = &cq->wc[i];
--
2.7.4
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
