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Commit fedd9e1f authored by Sagi Grimberg's avatar Sagi Grimberg Committed by Doug Ledford
Browse files

IB/cq: Don't process more than the given budget 



The caller might not want this overhead.

Reviewed-by: default avatarBart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: default avatarLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: default avatarSagi Grimberg <sagi@grimberg.me>
Reviewed-by: default avatarYuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 9fcd67d1

drivers/infiniband/core/cq.c

+7 −1
Original line number Original line Diff line number Diff line
@@ -29,7 +29,13 @@ static int __ib_process_cq(struct ib_cq *cq, int budget) 
{

{

	int i, n, completed = 0;

	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++) {

		for (i = 0; i < n; i++) {

			struct ib_wc *wc = &cq->wc[i];

			struct ib_wc *wc = &cq->wc[i];