iscsi-target: move iscsit_thread_check_cpumask()
Move iscsit_thread_check_cpumask() to header
file so that ISCSI_HW_OFFLOAD and other transport drivers
can call this function to ensure both tx and rx thread
runs on same cpu.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index a28eb87d..28fc7fb 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -3580,32 +3580,6 @@
cpumask_setall(conn->conn_cpumask);
}
-static inline void iscsit_thread_check_cpumask(
- struct iscsi_conn *conn,
- struct task_struct *p,
- int mode)
-{
- /*
- * mode == 1 signals iscsi_target_tx_thread() usage.
- * mode == 0 signals iscsi_target_rx_thread() usage.
- */
- if (mode == 1) {
- if (!conn->conn_tx_reset_cpumask)
- return;
- conn->conn_tx_reset_cpumask = 0;
- } else {
- if (!conn->conn_rx_reset_cpumask)
- return;
- conn->conn_rx_reset_cpumask = 0;
- }
- /*
- * Update the CPU mask for this single kthread so that
- * both TX and RX kthreads are scheduled to run on the
- * same CPU.
- */
- set_cpus_allowed_ptr(p, conn->conn_cpumask);
-}
-
static int
iscsit_immediate_queue(struct iscsi_conn *conn, struct iscsi_cmd *cmd, int state)
{
diff --git a/include/target/iscsi/iscsi_target_core.h b/include/target/iscsi/iscsi_target_core.h
index c3371fa..01c41f2 100644
--- a/include/target/iscsi/iscsi_target_core.h
+++ b/include/target/iscsi/iscsi_target_core.h
@@ -890,4 +890,30 @@
}
extern struct iscsi_cmd *iscsit_find_cmd_from_itt(struct iscsi_conn *, itt_t);
+
+static inline void iscsit_thread_check_cpumask(
+ struct iscsi_conn *conn,
+ struct task_struct *p,
+ int mode)
+{
+ /*
+ * mode == 1 signals iscsi_target_tx_thread() usage.
+ * mode == 0 signals iscsi_target_rx_thread() usage.
+ */
+ if (mode == 1) {
+ if (!conn->conn_tx_reset_cpumask)
+ return;
+ conn->conn_tx_reset_cpumask = 0;
+ } else {
+ if (!conn->conn_rx_reset_cpumask)
+ return;
+ conn->conn_rx_reset_cpumask = 0;
+ }
+ /*
+ * Update the CPU mask for this single kthread so that
+ * both TX and RX kthreads are scheduled to run on the
+ * same CPU.
+ */
+ set_cpus_allowed_ptr(p, conn->conn_cpumask);
+}
#endif /* ISCSI_TARGET_CORE_H */
