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isert: Only set WR next pointer when needed

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Signed-off-by: Yan Burman <yanb@mellanox.com>


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6482 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2015-08-25 21:40:41 +00:00
parent 4fcec5f359
commit dba2b1ac6b
1 changed files with 4 additions and 3 deletions
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7
iscsi-scst/kernel/isert-scst/iser_pdu.c
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@@ -214,8 +214,6 @@ static inline void isert_link_send_wrs(struct isert_wr *from_wr,
struct isert_wr *to_wr)
{
from_wr->send_wr.next = &to_wr->send_wr;
to_wr->send_wr.next = NULL;
}
static inline void isert_link_send_pdu_wrs(struct isert_cmnd *from_pdu,
@@ -223,6 +221,7 @@ static inline void isert_link_send_pdu_wrs(struct isert_cmnd *from_pdu,
int wr_cnt)
{
isert_link_send_wrs(&from_pdu->wr[wr_cnt - 1], &to_pdu->wr[0]);
to_pdu->wr[0].send_wr.next = NULL;
}
int isert_prepare_rdma(struct isert_cmnd *isert_pdu,
@@ -280,8 +279,10 @@ int isert_prepare_rdma(struct isert_cmnd *isert_pdu,
for (i = 1; i < wr_cnt; ++i)
isert_link_send_wrs(&isert_pdu->wr[i - 1], &isert_pdu->wr[i]);
if (op == ISER_WR_RDMA_READ)
if (op == ISER_WR_RDMA_READ) {
isert_pdu->wr[wr_cnt - 1].send_wr.send_flags = IB_SEND_SIGNALED;
isert_pdu->wr[wr_cnt - 1].send_wr.next = NULL;
}
out:
TRACE_EXIT_RES(wr_cnt);