target: replace various cmd flags with a transport state

Replace various atomic_ts used as flags in struct se_cmd with a single
transport_state bitmap that requires t_state_lock to be held for modifications.

In the target core that assumption generally is true, but some recently added
code in the SRP target had to grow new lock calls.  I can't say I like the way
how it messes with the command state directly, but let's leave that for later.

(Re-add missing ib_srpt.c changes that nab dropped..)

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

3 files changed, 5 insertions, 5 deletions

diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 44262908def..bf0e8e75a27 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -1363,7 +1363,7 @@ static int iscsit_handle_data_out(struct iscsi_conn *conn, unsigned char *buf)
 		 * outstanding_r2ts reaches zero, go ahead and send the delayed
 		 * TASK_ABORTED status.
 		 */
-		if (atomic_read(&se_cmd->t_transport_aborted) != 0) {
+		if (se_cmd->transport_state & CMD_T_ABORTED) {
 			if (hdr->flags & ISCSI_FLAG_CMD_FINAL)
 				if (--cmd->outstanding_r2ts < 1) {
 					iscsit_stop_dataout_timer(cmd);
diff --git a/drivers/target/iscsi/iscsi_target_erl1.c b/drivers/target/iscsi/iscsi_target_erl1.c
index 27901e37c12..006f605edb0 100644
--- a/drivers/target/iscsi/iscsi_target_erl1.c
+++ b/drivers/target/iscsi/iscsi_target_erl1.c
@@ -416,7 +416,7 @@ static int iscsit_handle_recovery_datain(
 	struct iscsi_datain_req *dr;
 	struct se_cmd *se_cmd = &cmd->se_cmd;
 
-	if (!atomic_read(&se_cmd->t_transport_complete)) {
+	if (!(se_cmd->transport_state & CMD_T_COMPLETE)) {
 		pr_err("Ignoring ITT: 0x%08x Data SNACK\n",
 				cmd->init_task_tag);
 		return 0;
diff --git a/drivers/target/iscsi/iscsi_target_tmr.c b/drivers/target/iscsi/iscsi_target_tmr.c
index 255ed35da81..e01da9d2b37 100644
--- a/drivers/target/iscsi/iscsi_target_tmr.c
+++ b/drivers/target/iscsi/iscsi_target_tmr.c
@@ -250,7 +250,7 @@ static int iscsit_task_reassign_complete_write(
 	 * so if we have received all DataOUT we can safety ignore Initiator.
 	 */
 	if (cmd->cmd_flags & ICF_GOT_LAST_DATAOUT) {
-		if (!atomic_read(&cmd->se_cmd.t_transport_sent)) {
+		if (!(cmd->se_cmd.transport_state & CMD_T_SENT)) {
 			pr_debug("WRITE ITT: 0x%08x: t_state: %d"
 				" never sent to transport\n",
 				cmd->init_task_tag, cmd->se_cmd.t_state);
@@ -314,7 +314,7 @@ static int iscsit_task_reassign_complete_read(
 		cmd->acked_data_sn = (tmr_req->exp_data_sn - 1);
 	}
 
-	if (!atomic_read(&cmd->se_cmd.t_transport_sent)) {
+	if (!(cmd->se_cmd.transport_state & CMD_T_SENT)) {
 		pr_debug("READ ITT: 0x%08x: t_state: %d never sent to"
 			" transport\n", cmd->init_task_tag,
 			cmd->se_cmd.t_state);
@@ -322,7 +322,7 @@ static int iscsit_task_reassign_complete_read(
 		return 0;
 	}
 
-	if (!atomic_read(&se_cmd->t_transport_complete)) {
+	if (!(se_cmd->transport_state & CMD_T_COMPLETE)) {
 		pr_err("READ ITT: 0x%08x: t_state: %d, never returned"
 			" from transport\n", cmd->init_task_tag,
 			cmd->se_cmd.t_state);