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authorMike Christie <michaelc@cs.wisc.edu>2009-05-13 17:57:42 -0500
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-05-23 15:44:10 -0500
commitedbc9aa0580c0aca96ac8d11bfb2defa81d91bb3 (patch)
treec8ee53b24f853af3352083c0a6e0412ca5d407a2
parent8f9256cea10ca43ac80f66e176643eb41db34244 (diff)
downloadtalos-op-linux-edbc9aa0580c0aca96ac8d11bfb2defa81d91bb3.tar.gz
talos-op-linux-edbc9aa0580c0aca96ac8d11bfb2defa81d91bb3.zip
[SCSI] libiscsi: have iscsi_data_in_rsp call iscsi_update_cmdsn
This has iscsi_data_in_rsp call iscsi_update_cmdsn when a pdu is completed like is done for other pdu's that are don. For libiscsi_tcp, this means that it calls iscsi_update_cmdsn when it is handling the pdu internally to only transfer data, but if there is status then it does not need to call it since the completion handling will do it. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
-rw-r--r--drivers/scsi/libiscsi.c1
-rw-r--r--drivers/scsi/libiscsi_tcp.c8
2 files changed, 8 insertions, 1 deletions
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index a6e6eef04fed..047543cd3fc1 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -729,6 +729,7 @@ iscsi_data_in_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
if (!(rhdr->flags & ISCSI_FLAG_DATA_STATUS))
return;
+ iscsi_update_cmdsn(conn->session, (struct iscsi_nopin *)hdr);
sc->result = (DID_OK << 16) | rhdr->cmd_status;
conn->exp_statsn = be32_to_cpu(rhdr->statsn) + 1;
if (rhdr->flags & (ISCSI_FLAG_DATA_UNDERFLOW |
diff --git a/drivers/scsi/libiscsi_tcp.c b/drivers/scsi/libiscsi_tcp.c
index b579ca9f4836..db93cd0dfdb6 100644
--- a/drivers/scsi/libiscsi_tcp.c
+++ b/drivers/scsi/libiscsi_tcp.c
@@ -473,7 +473,13 @@ static int iscsi_tcp_data_in(struct iscsi_conn *conn, struct iscsi_task *task)
int datasn = be32_to_cpu(rhdr->datasn);
unsigned total_in_length = scsi_in(task->sc)->length;
- iscsi_update_cmdsn(conn->session, (struct iscsi_nopin*)rhdr);
+ /*
+ * lib iscsi will update this in the completion handling if there
+ * is status.
+ */
+ if (!(rhdr->flags & ISCSI_FLAG_DATA_STATUS))
+ iscsi_update_cmdsn(conn->session, (struct iscsi_nopin*)rhdr);
+
if (tcp_conn->in.datalen == 0)
return 0;
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