search for: err_busy

...VSOCK_TRANSPORT_F_H2G) { > if (t_h2g) { > @@ -2164,9 +2167,18 @@ int vsock_core_register(const struct > vsock_transport *t, int features) > t_dgram = t; > } > > + if (features & VSOCK_TRANSPORT_F_LOCAL) { > + if (t_local) { > + err = -EBUSY; > + goto err_busy; > + } > + t_local = t; > + } > + > transport_h2g = t_h2g; > transport_g2h = t_g2h; > transport_dgram = t_dgram; > + transport_local = t_local; > > err_busy: > mutex_unlock(&vsock_register_mutex); > @@ -2187,6 +2199,9 @@ void vsock_core_unregister...

...VSOCK_TRANSPORT_F_H2G) { > if (t_h2g) { > @@ -2164,9 +2167,18 @@ int vsock_core_register(const struct > vsock_transport *t, int features) > t_dgram = t; > } > > + if (features & VSOCK_TRANSPORT_F_LOCAL) { > + if (t_local) { > + err = -EBUSY; > + goto err_busy; > + } > + t_local = t; > + } > + > transport_h2g = t_h2g; > transport_g2h = t_g2h; > transport_dgram = t_dgram; > + transport_local = t_local; > > err_busy: > mutex_unlock(&vsock_register_mutex); > @@ -2187,6 +2199,9 @@ void vsock_core_unregister...

...ps = &vsock_device_ops, }; -static int __vsock_core_init(void) +int __vsock_core_init(const struct vsock_transport *t, struct module *owner) { - int err; + int err = mutex_lock_interruptible(&vsock_register_mutex); + if (err) + return err; + + if (transport) { + err = -EBUSY; + goto err_busy; + } + + /* Transport must be the owner of the protocol so that it can't + * unload while there are open sockets. + */ + vsock_proto.owner = owner; + transport = t; vsock_init_tables(); @@ -1951,36 +1964,19 @@ static int __vsock_core_init(void) goto err_unregister_proto; } + mute...

...ps = &vsock_device_ops, }; -static int __vsock_core_init(void) +int __vsock_core_init(const struct vsock_transport *t, struct module *owner) { - int err; + int err = mutex_lock_interruptible(&vsock_register_mutex); + if (err) + return err; + + if (transport) { + err = -EBUSY; + goto err_busy; + } + + /* Transport must be the owner of the protocol so that it can't + * unload while there are open sockets. + */ + vsock_proto.owner = owner; + transport = t; vsock_init_tables(); @@ -1951,36 +1964,19 @@ static int __vsock_core_init(void) goto err_unregister_proto; } + mute...

...vsock_core_register(const struct > > > vsock_transport *t, int features) > > > t_dgram = t; > > > } > > > > > > + if (features & VSOCK_TRANSPORT_F_LOCAL) { > > > + if (t_local) { > > > + err = -EBUSY; > > > + goto err_busy; > > > + } > > > + t_local = t; > > > + } > > > + > > > transport_h2g = t_h2g; > > > transport_g2h = t_g2h; > > > transport_dgram = t_dgram; > > > + transport_local = t_local; > > > > > > err_busy: &g...

...vsock_core_register(const struct > > > vsock_transport *t, int features) > > > t_dgram = t; > > > } > > > > > > + if (features & VSOCK_TRANSPORT_F_LOCAL) { > > > + if (t_local) { > > > + err = -EBUSY; > > > + goto err_busy; > > > + } > > > + t_local = t; > > > + } > > > + > > > transport_h2g = t_h2g; > > > transport_g2h = t_g2h; > > > transport_dgram = t_dgram; > > > + transport_local = t_local; > > > > > > err_busy: &g...

...ock_device_ops, }; -int __vsock_core_init(const struct vsock_transport *t, struct module *owner) +static int __init vsock_init(void) { - int err = mutex_lock_interruptible(&vsock_register_mutex); + int err = 0; - if (err) - return err; - - if (transport_single) { - err = -EBUSY; - goto err_busy; - } - - /* Transport must be the owner of the protocol so that it can't - * unload while there are open sockets. - */ - vsock_proto.owner = owner; - transport_single = t; + vsock_init_tables(); + vsock_proto.owner = THIS_MODULE; vsock_device.minor = MISC_DYNAMIC_MINOR; err = misc_regis...

...ock_device_ops, }; -int __vsock_core_init(const struct vsock_transport *t, struct module *owner) +static int __init vsock_init(void) { - int err = mutex_lock_interruptible(&vsock_register_mutex); + int err = 0; - if (err) - return err; - - if (transport_single) { - err = -EBUSY; - goto err_busy; - } - - /* Transport must be the owner of the protocol so that it can't - * unload while there are open sockets. - */ - vsock_proto.owner = owner; - transport_single = t; + vsock_init_tables(); + vsock_proto.owner = THIS_MODULE; vsock_device.minor = MISC_DYNAMIC_MINOR; err = misc_regis...

...{ > > @@ -2164,9 +2167,18 @@ int vsock_core_register(const struct > > vsock_transport *t, int features) > > t_dgram = t; > > } > > > > + if (features & VSOCK_TRANSPORT_F_LOCAL) { > > + if (t_local) { > > + err = -EBUSY; > > + goto err_busy; > > + } > > + t_local = t; > > + } > > + > > transport_h2g = t_h2g; > > transport_g2h = t_g2h; > > transport_dgram = t_dgram; > > + transport_local = t_local; > > > > err_busy: > > mutex_unlock(&vsock_register_mutex)...

...= &vsock_device_ops, }; -static int __vsock_core_init(void) +int __vsock_core_init(const struct vsock_transport *t, struct module *owner) { - int err; + int err = mutex_lock_interruptible(&vsock_register_mutex); + + if (err) + return err; + + if (transport) { + err = -EBUSY; + goto err_busy; + } + + /* Transport must be the owner of the protocol so that it can't + * unload while there are open sockets. + */ + vsock_proto.owner = owner; + transport = t; vsock_init_tables(); @@ -1951,36 +1965,19 @@ static int __vsock_core_init(void) goto err_unregister_proto; } + mute...

...= &vsock_device_ops, }; -static int __vsock_core_init(void) +int __vsock_core_init(const struct vsock_transport *t, struct module *owner) { - int err; + int err = mutex_lock_interruptible(&vsock_register_mutex); + + if (err) + return err; + + if (transport) { + err = -EBUSY; + goto err_busy; + } + + /* Transport must be the owner of the protocol so that it can't + * unload while there are open sockets. + */ + vsock_proto.owner = owner; + transport = t; vsock_init_tables(); @@ -1951,36 +1965,19 @@ static int __vsock_core_init(void) goto err_unregister_proto; } + mute...

...if we are * in a VMware guest, but we are not able to do the same for the host. */ - if (t->features & VSOCK_TRANSPORT_F_H2G) { + if ((t->features & VSOCK_TRANSPORT_F_H2G) && + (t->features & VSOCK_TRANSPORT_F_G2H)) { + if (t_hg) { + err = -EBUSY; + goto err_busy; + } + t_hg = t; + } else if (t->features & VSOCK_TRANSPORT_F_H2G) { if (t_h2g) { err = -EBUSY; goto err_busy; @@ -2132,6 +2147,7 @@ int vsock_core_register(const struct vsock_transport *t) } transport_h2g = t_h2g; + transport_hg = t_hg; transport_g2h = t_g2h; transpor...

...t; > > vsock_transport *t, int features) > > > > t_dgram = t; > > > > } > > > > > > > > + if (features & VSOCK_TRANSPORT_F_LOCAL) { > > > > + if (t_local) { > > > > + err = -EBUSY; > > > > + goto err_busy; > > > > + } > > > > + t_local = t; > > > > + } > > > > + > > > > transport_h2g = t_h2g; > > > > transport_g2h = t_g2h; > > > > transport_dgram = t_dgram; > > > > + transport_local = t_local; &gt...

...!= 0) + if (put_user(transport_single->get_local_cid(), p) != 0) retval = -EFAULT; break; @@ -1911,7 +1931,7 @@ int __vsock_core_init(const struct vsock_transport *t, struct module *owner) if (err) return err; - if (transport) { + if (transport_single) { err = -EBUSY; goto err_busy; } @@ -1920,7 +1940,7 @@ int __vsock_core_init(const struct vsock_transport *t, struct module *owner) * unload while there are open sockets. */ vsock_proto.owner = owner; - transport = t; + transport_single = t; vsock_device.minor = MISC_DYNAMIC_MINOR; err = misc_register(&vsock...

...!= 0) + if (put_user(transport_single->get_local_cid(), p) != 0) retval = -EFAULT; break; @@ -1919,7 +1939,7 @@ int __vsock_core_init(const struct vsock_transport *t, struct module *owner) if (err) return err; - if (transport) { + if (transport_single) { err = -EBUSY; goto err_busy; } @@ -1928,7 +1948,7 @@ int __vsock_core_init(const struct vsock_transport *t, struct module *owner) * unload while there are open sockets. */ vsock_proto.owner = owner; - transport = t; + transport_single = t; vsock_device.minor = MISC_DYNAMIC_MINOR; err = misc_register(&vsock...

Hi all, this series adds the multi-transports support to vsock, following this proposal: https://www.spinics.net/lists/netdev/msg575792.html With the multi-transports support, we can use vsock with nested VMs (using also different hypervisors) loading both guest->host and host->guest transports at the same time. Before this series, vmci-transport supported this behavior but only using

Hi all, this series adds the multi-transports support to vsock, following this proposal: https://www.spinics.net/lists/netdev/msg575792.html With the multi-transports support, we can use vsock with nested VMs (using also different hypervisors) loading both guest->host and host->guest transports at the same time. Before this series, vmci-transport supported this behavior but only using

Most of the patches are reviewed by Dexuan, Stefan, and Jorgen. The following patches need reviews: - [11/15] vsock: add multi-transports support - [12/15] vsock/vmci: register vmci_transport only when VMCI guest/host are active - [15/15] vhost/vsock: refuse CID assigned to the guest->host transport RFC: https://patchwork.ozlabs.org/cover/1168442/ v1:

v2: - style fixes [Dave] - removed RCU sync and changed 'the_vsock_loopback' in a global static variable [Stefan] - use G2H transport when local transport is not loaded and remote cid is VMADDR_CID_LOCAL [Stefan] - rebased on net-next v1: https://patchwork.kernel.org/cover/11251735/ This series introduces a new transport (vsock_loopback) to handle local communication. This

This series adds the multi-transports support to vsock, following this proposal: https://www.spinics.net/lists/netdev/msg575792.html With the multi-transports support, we can use VSOCK with nested VMs (using also different hypervisors) loading both guest->host and host->guest transports at the same time. Before this series, vmci-transport supported this behavior but only using VMware