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| author | Ralf Baechle <ralf@linux-mips.org> | 2006-07-12 13:25:23 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-07-12 13:58:57 -0700 |
| commit | c19c4b9c9acb4ab6f5477ae9ca2c0a8619f19c7a (patch) | |
| tree | 3aaf3c6e4bc9dd797af434b6767c3da5732a6ba1 | |
| parent | da952315c9c625bd513c6162613fd3fd01d91aae (diff) | |
| download | kernel_samsung_smdk4412-c19c4b9c9acb4ab6f5477ae9ca2c0a8619f19c7a.tar.gz kernel_samsung_smdk4412-c19c4b9c9acb4ab6f5477ae9ca2c0a8619f19c7a.tar.bz2 kernel_samsung_smdk4412-c19c4b9c9acb4ab6f5477ae9ca2c0a8619f19c7a.zip | |
[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>
| -rw-r--r-- | net/ax25/af_ax25.c | 14 | ||||
| -rw-r--r-- | net/ax25/ax25_ds_subr.c | 8 | ||||
| -rw-r--r-- | net/ax25/ax25_ds_timer.c | 4 |
3 files changed, 13 insertions, 13 deletions
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c index f12be2acf9b..000695c4858 100644 --- a/net/ax25/af_ax25.c +++ b/net/ax25/af_ax25.c @@ -145,7 +145,7 @@ struct sock *ax25_find_listener(ax25_address *addr, int digi, ax25_cb *s; struct hlist_node *node; - spin_lock_bh(&ax25_list_lock); + spin_lock(&ax25_list_lock); ax25_for_each(s, node, &ax25_list) { if ((s->iamdigi && !digi) || (!s->iamdigi && digi)) continue; @@ -154,12 +154,12 @@ struct sock *ax25_find_listener(ax25_address *addr, int digi, /* If device is null we match any device */ if (s->ax25_dev == NULL || s->ax25_dev->dev == dev) { sock_hold(s->sk); - spin_unlock_bh(&ax25_list_lock); + spin_unlock(&ax25_list_lock); return s->sk; } } } - spin_unlock_bh(&ax25_list_lock); + spin_unlock(&ax25_list_lock); return NULL; } @@ -174,7 +174,7 @@ struct sock *ax25_get_socket(ax25_address *my_addr, ax25_address *dest_addr, ax25_cb *s; struct hlist_node *node; - spin_lock_bh(&ax25_list_lock); + spin_lock(&ax25_list_lock); ax25_for_each(s, node, &ax25_list) { if (s->sk && !ax25cmp(&s->source_addr, my_addr) && !ax25cmp(&s->dest_addr, dest_addr) && @@ -185,7 +185,7 @@ struct sock *ax25_get_socket(ax25_address *my_addr, ax25_address *dest_addr, } } - spin_unlock_bh(&ax25_list_lock); + spin_unlock(&ax25_list_lock); return sk; } @@ -235,7 +235,7 @@ void ax25_send_to_raw(ax25_address *addr, struct sk_buff *skb, int proto) struct sk_buff *copy; struct hlist_node *node; - spin_lock_bh(&ax25_list_lock); + spin_lock(&ax25_list_lock); ax25_for_each(s, node, &ax25_list) { if (s->sk != NULL && ax25cmp(&s->source_addr, addr) == 0 && s->sk->sk_type == SOCK_RAW && @@ -248,7 +248,7 @@ void ax25_send_to_raw(ax25_address *addr, struct sk_buff *skb, int proto) kfree_skb(copy); } } - spin_unlock_bh(&ax25_list_lock); + spin_unlock(&ax25_list_lock); } /* diff --git a/net/ax25/ax25_ds_subr.c b/net/ax25/ax25_ds_subr.c index 1d4ab641f82..4d22d4430ec 100644 --- a/net/ax25/ax25_ds_subr.c +++ b/net/ax25/ax25_ds_subr.c @@ -80,7 +80,7 @@ void ax25_ds_enquiry_response(ax25_cb *ax25) 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 @@ void ax25_ds_enquiry_response(ax25_cb *ax25) 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 @@ static int ax25_check_dama_slave(ax25_dev *ax25_dev) 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; } diff --git a/net/ax25/ax25_ds_timer.c b/net/ax25/ax25_ds_timer.c index 5961459935e..4f44185955c 100644 --- a/net/ax25/ax25_ds_timer.c +++ b/net/ax25/ax25_ds_timer.c @@ -85,7 +85,7 @@ static void ax25_ds_timeout(unsigned long arg) return; } - 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)) continue; @@ -93,7 +93,7 @@ static void ax25_ds_timeout(unsigned long arg) ax25_send_control(ax25, AX25_DISC, AX25_POLLON, AX25_COMMAND); ax25_disconnect(ax25, ETIMEDOUT); } - spin_unlock_bh(&ax25_list_lock); + spin_unlock(&ax25_list_lock); ax25_dev_dama_off(ax25_dev); } |