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author | Jeff Garzik <jgarzik@pobox.com> | 2005-12-01 01:54:02 -0500 |
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committer | Jeff Garzik <jgarzik@pobox.com> | 2005-12-01 01:54:02 -0500 |
commit | e538af42e416ac17368593370f7e1f5a71d55197 (patch) | |
tree | 507b90ccb700de4f564cc1a2def19658fe054a0c /net/atm/common.c | |
parent | 2226340eb8df9c42f9fca74582d08d5117fc0cec (diff) | |
parent | 5666c0947ede0432ba5148570aa66ffb9febff5b (diff) | |
download | op-kernel-dev-e538af42e416ac17368593370f7e1f5a71d55197.zip op-kernel-dev-e538af42e416ac17368593370f7e1f5a71d55197.tar.gz |
Merge branch 'master'
Diffstat (limited to 'net/atm/common.c')
-rw-r--r-- | net/atm/common.c | 66 |
1 files changed, 40 insertions, 26 deletions
diff --git a/net/atm/common.c b/net/atm/common.c index 63feea4..6656b11 100644 --- a/net/atm/common.c +++ b/net/atm/common.c @@ -221,6 +221,29 @@ void vcc_release_async(struct atm_vcc *vcc, int reply) EXPORT_SYMBOL(vcc_release_async); +void atm_dev_release_vccs(struct atm_dev *dev) +{ + int i; + + write_lock_irq(&vcc_sklist_lock); + for (i = 0; i < VCC_HTABLE_SIZE; i++) { + struct hlist_head *head = &vcc_hash[i]; + struct hlist_node *node, *tmp; + struct sock *s; + struct atm_vcc *vcc; + + sk_for_each_safe(s, node, tmp, head) { + vcc = atm_sk(s); + if (vcc->dev == dev) { + vcc_release_async(vcc, -EPIPE); + sk_del_node_init(s); + } + } + } + write_unlock_irq(&vcc_sklist_lock); +} + + static int adjust_tp(struct atm_trafprm *tp,unsigned char aal) { int max_sdu; @@ -332,12 +355,13 @@ static int __vcc_connect(struct atm_vcc *vcc, struct atm_dev *dev, short vpi, return -EINVAL; if (vci > 0 && vci < ATM_NOT_RSV_VCI && !capable(CAP_NET_BIND_SERVICE)) return -EPERM; - error = 0; + error = -ENODEV; if (!try_module_get(dev->ops->owner)) - return -ENODEV; + return error; vcc->dev = dev; write_lock_irq(&vcc_sklist_lock); - if ((error = find_ci(vcc, &vpi, &vci))) { + if (test_bit(ATM_DF_REMOVED, &dev->flags) || + (error = find_ci(vcc, &vpi, &vci))) { write_unlock_irq(&vcc_sklist_lock); goto fail_module_put; } @@ -423,33 +447,23 @@ int vcc_connect(struct socket *sock, int itf, short vpi, int vci) if (vcc->qos.txtp.traffic_class == ATM_ANYCLASS || vcc->qos.rxtp.traffic_class == ATM_ANYCLASS) return -EINVAL; - if (itf != ATM_ITF_ANY) { - dev = atm_dev_lookup(itf); - if (!dev) - return -ENODEV; - error = __vcc_connect(vcc, dev, vpi, vci); - if (error) { - atm_dev_put(dev); - return error; - } + if (likely(itf != ATM_ITF_ANY)) { + dev = try_then_request_module(atm_dev_lookup(itf), "atm-device-%d", itf); } else { - struct list_head *p, *next; - dev = NULL; - spin_lock(&atm_dev_lock); - list_for_each_safe(p, next, &atm_devs) { - dev = list_entry(p, struct atm_dev, dev_list); + down(&atm_dev_mutex); + if (!list_empty(&atm_devs)) { + dev = list_entry(atm_devs.next, struct atm_dev, dev_list); atm_dev_hold(dev); - spin_unlock(&atm_dev_lock); - if (!__vcc_connect(vcc, dev, vpi, vci)) - break; - atm_dev_put(dev); - dev = NULL; - spin_lock(&atm_dev_lock); } - spin_unlock(&atm_dev_lock); - if (!dev) - return -ENODEV; + up(&atm_dev_mutex); + } + if (!dev) + return -ENODEV; + error = __vcc_connect(vcc, dev, vpi, vci); + if (error) { + atm_dev_put(dev); + return error; } if (vpi == ATM_VPI_UNSPEC || vci == ATM_VCI_UNSPEC) set_bit(ATM_VF_PARTIAL,&vcc->flags); |