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
......@@ -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];
......
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