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authorMax Gurtovoy <maxg@mellanox.com>2018-01-14 18:07:48 +0300
committerDoug Ledford <dledford@redhat.com>2018-01-18 22:49:20 +0300
commitaaebd377c0e9c75bc95217b924e4456a392c65ed (patch)
tree419a455a9238fddc8e2623ab0f5fb35006133b70
parentbb3ffb7ad48a21e98a5c64eb21103a74fd9f03f6 (diff)
downloadlinux-aaebd377c0e9c75bc95217b924e4456a392c65ed.tar.xz
IB/core: postpone WR initialization during queue drain
No need to initialize completion and WR in case we fail during QP modification. Signed-off-by: Max Gurtovoy <maxg@mellanox.com> Acked-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Doug Ledford <dledford@redhat.com>
-rw-r--r--drivers/infiniband/core/verbs.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 49a2a764c0bf..e9c3991a93ff 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -2191,16 +2191,16 @@ static void __ib_drain_sq(struct ib_qp *qp)
struct ib_send_wr swr = {}, *bad_swr;
int ret;
- swr.wr_cqe = &sdrain.cqe;
- sdrain.cqe.done = ib_drain_qp_done;
- init_completion(&sdrain.done);
-
ret = ib_modify_qp(qp, &attr, IB_QP_STATE);
if (ret) {
WARN_ONCE(ret, "failed to drain send queue: %d\n", ret);
return;
}
+ swr.wr_cqe = &sdrain.cqe;
+ sdrain.cqe.done = ib_drain_qp_done;
+ init_completion(&sdrain.done);
+
ret = ib_post_send(qp, &swr, &bad_swr);
if (ret) {
WARN_ONCE(ret, "failed to drain send queue: %d\n", ret);
@@ -2225,16 +2225,16 @@ static void __ib_drain_rq(struct ib_qp *qp)
struct ib_recv_wr rwr = {}, *bad_rwr;
int ret;
- rwr.wr_cqe = &rdrain.cqe;
- rdrain.cqe.done = ib_drain_qp_done;
- init_completion(&rdrain.done);
-
ret = ib_modify_qp(qp, &attr, IB_QP_STATE);
if (ret) {
WARN_ONCE(ret, "failed to drain recv queue: %d\n", ret);
return;
}
+ rwr.wr_cqe = &rdrain.cqe;
+ rdrain.cqe.done = ib_drain_qp_done;
+ init_completion(&rdrain.done);
+
ret = ib_post_recv(qp, &rwr, &bad_rwr);
if (ret) {
WARN_ONCE(ret, "failed to drain recv queue: %d\n", ret);