[AX.25]: Optimize AX.25 socket list lock
Right now all uses of the ax25_list_lock lock are _bh locks but knowing
some code is only ever getting invoked from _bh context we can better.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ax25/ax25_ds_subr.c b/net/ax25/ax25_ds_subr.c
index 1d4ab64..4d22d44 100644
--- a/net/ax25/ax25_ds_subr.c
+++ b/net/ax25/ax25_ds_subr.c
@@ -80,7 +80,7 @@
ax25_start_t3timer(ax25);
ax25_ds_set_timer(ax25->ax25_dev);
- spin_lock_bh(&ax25_list_lock);
+ spin_lock(&ax25_list_lock);
ax25_for_each(ax25o, node, &ax25_list) {
if (ax25o == ax25)
continue;
@@ -106,7 +106,7 @@
if (ax25o->state != AX25_STATE_0)
ax25_start_t3timer(ax25o);
}
- spin_unlock_bh(&ax25_list_lock);
+ spin_unlock(&ax25_list_lock);
}
void ax25_ds_establish_data_link(ax25_cb *ax25)
@@ -162,13 +162,13 @@
int res = 0;
struct hlist_node *node;
- spin_lock_bh(&ax25_list_lock);
+ spin_lock(&ax25_list_lock);
ax25_for_each(ax25, node, &ax25_list)
if (ax25->ax25_dev == ax25_dev && (ax25->condition & AX25_COND_DAMA_MODE) && ax25->state > AX25_STATE_1) {
res = 1;
break;
}
- spin_unlock_bh(&ax25_list_lock);
+ spin_unlock(&ax25_list_lock);
return res;
}