On 3/30/2015 6:28 AM, Nicholas A. Bellinger wrote:
From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
This patch moves the existing target_complete_ok_work() check for
cmd->prot_op into it's own function, so it's easier to add future
support for READ INSERT.
Cc: Martin Petersen <martin.petersen@xxxxxxxxxx>
Cc: Sagi Grimberg <sagig@xxxxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
---
drivers/target/target_core_transport.c | 21 +++++++++++++--------
1 file changed, 13 insertions(+), 8 deletions(-)
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 51b62bd..e603e34 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -1980,16 +1980,22 @@ static void transport_handle_queue_full(
schedule_work(&cmd->se_dev->qf_work_queue);
}
-static bool target_check_read_strip(struct se_cmd *cmd)
+static bool target_check_read_prot(struct se_cmd *cmd)
Same comment on naming.
{
sense_reason_t rc;
- if (!(cmd->se_sess->sup_prot_ops & TARGET_PROT_DIN_STRIP)) {
- rc = sbc_dif_read_strip(cmd);
- if (rc) {
- cmd->pi_err = rc;
- return true;
+ switch (cmd->prot_op) {
+ case TARGET_PROT_DIN_STRIP:
+ if (!(cmd->se_sess->sup_prot_ops & TARGET_PROT_DIN_STRIP)) {
+ rc = sbc_dif_read_strip(cmd);
+ if (rc) {
+ cmd->pi_err = rc;
+ return true;
+ }
}
+ break;
+ default:
+ break;
}
return false;
@@ -2064,8 +2070,7 @@ static void target_complete_ok_work(struct work_struct *work)
* backend had PI enabled, if the transport will not be
* performing hardware READ_STRIP offload.
*/
- if (cmd->prot_op == TARGET_PROT_DIN_STRIP &&
- target_check_read_strip(cmd)) {
+ if (target_check_read_prot(cmd)) {
ret = transport_send_check_condition_and_sense(cmd,
cmd->pi_err, 0);
if (ret == -EAGAIN || ret == -ENOMEM)
--
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