3.13.11-ckt29 -stable review patch. If anyone has any objections, please let
me know.
------------------
From: Jenny Derzhavetz <jen...@mellanox.com>
commit a4c15cd957cbd728f685645de7a150df5912591a upstream.
As documented in iscsit_sequence_cmd:
/*
* Existing callers for iscsit_sequence_cmd() will silently
* ignore commands with CMDSN_LOWER_THAN_EXP, so force this
* return for CMDSN_MAXCMDSN_OVERRUN as well..
*/
We need to silently finish a command when it's in ISTATE_REMOVE.
This fixes an teardown hang we were seeing where a mis-behaved
initiator (triggered by allocation error injections) sent us a
cmdsn which was lower than expected.
Signed-off-by: Jenny Derzhavetz <jen...@mellanox.com>
Signed-off-by: Sagi Grimberg <sa...@mellanox.com>
Signed-off-by: Nicholas Bellinger <n...@linux-iscsi.org>
Signed-off-by: Kamal Mostafa <ka...@canonical.com>
---
drivers/infiniband/ulp/isert/ib_isert.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c
b/drivers/infiniband/ulp/isert/ib_isert.c
index bd470fd..b4b7a9d 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -2592,9 +2592,16 @@ isert_get_dataout(struct iscsi_conn *conn, struct
iscsi_cmd *cmd, bool recovery)
static int
isert_immediate_queue(struct iscsi_conn *conn, struct iscsi_cmd *cmd, int
state)
{
- int ret;
+ struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd);
+ int ret = 0;
switch (state) {
+ case ISTATE_REMOVE:
+ spin_lock_bh(&conn->cmd_lock);
+ list_del_init(&cmd->i_conn_node);
+ spin_unlock_bh(&conn->cmd_lock);
+ isert_put_cmd(isert_cmd, true);
+ break;
case ISTATE_SEND_NOPIN_WANT_RESPONSE:
ret = isert_put_nopin(cmd, conn, false);
break;
--
1.9.1
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