It is difficult to make sure the state of the interrupt when this
function is called. As such, it is safer to use spin_lock_irqsave
than spin_lock_irq.
Cc: Joe Jin <joe.jin@xxxxxxxxxx>
Cc: Junxiao Bi <junxiao.bi@xxxxxxxxxx>
Signed-off-by: Zhu Yanjun <yanjun.zhu@xxxxxxxxxx>
---
net/rds/ib_cm.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c
index eca3d5f..87ec4dd 100644
--- a/net/rds/ib_cm.c
+++ b/net/rds/ib_cm.c
@@ -963,6 +963,7 @@ void rds_ib_conn_free(void *arg)
{
struct rds_ib_connection *ic = arg;
spinlock_t *lock_ptr;
+ unsigned long flags;
rdsdebug("ic %p\n", ic);
@@ -973,9 +974,9 @@ void rds_ib_conn_free(void *arg)
*/
lock_ptr = ic->rds_ibdev ? &ic->rds_ibdev->spinlock : &ib_nodev_conns_lock;
- spin_lock_irq(lock_ptr);
+ spin_lock_irqsave(lock_ptr, flags);
list_del(&ic->ib_node);
- spin_unlock_irq(lock_ptr);
+ spin_unlock_irqrestore(lock_ptr, flags);
rds_ib_recv_free_caches(ic);
--
2.7.4
--
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