kernel/linux.git/net/rds/transport.c, branch linux-4.4.y

RDS-TCP: Make RDS-TCP work correctly when it is set up in a netns other than init_net

2015-08-07T18:29:57+00:00

Open the sockets calling sock_create_kern() with the correct struct net pointer, and use that struct net pointer when verifying the address passed to rds_bind(). Signed-off-by: Sowmini Varadhan Signed-off-by: David S. Miller

net-RDS: Delete an unnecessary check before the function call "module_put"

2015-07-03T16:27:42+00:00

The module_put() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring Signed-off-by: David S. Miller

net/rds: Add setsockopt support for SO_RDS_TRANSPORT

2015-06-01T04:47:23+00:00

An application may deterministically attach the underlying transport for a PF_RDS socket by invoking setsockopt(2) with the SO_RDS_TRANSPORT option at the SOL_RDS level. The integer argument to setsockopt must be one of the RDS_TRANS_* transport types, e.g., RDS_TRANS_TCP. The option must be specified before invoking bind(2) on the socket, and may only be used once on the socket. An attempt to set the option on a bound socket, or to invoke the option after a successful SO_RDS_TRANSPORT attachment, will return EOPNOTSUPP. Signed-off-by: Sowmini Varadhan Signed-off-by: David S. Miller

RDS: have sockets get transport module references

2010-09-09T01:16:47+00:00

Right now there's nothing to stop the various paths that use rs->rs_transport from racing with rmmod and executing freed transport code. The simple fix is to have binding to a transport also hold a reference to the transport's module, removing this class of races. We already had an unused t_owner field which was set for the modular transports and which wasn't set for the built-in loop transport. Signed-off-by: Zach Brown

RDS: Track transports via an array, not a list

2009-08-24T02:13:12+00:00

Now that transports can be loaded in arbitrary order, it is important for rds_trans_get_preferred() to look for them in a particular order, instead of walking the list until it finds a transport that works for a given address. Now, each transport registers for a specific transport slot, and these are ordered so that preferred transports come first, and then if they are not loaded, other transports are queried. Signed-off-by: Andy Grover Signed-off-by: David S. Miller

RDS: Export symbols from core RDS

2009-08-24T02:13:07+00:00

Now that rdma and tcp transports will be modularized, we need to export a number of functions so they can call them. Signed-off-by: Andy Grover Signed-off-by: David S. Miller

RDS: Transport code

2009-02-27T07:39:24+00:00

RDS supports multiple transports. While this initial submission only supports Infiniband transport, this abstraction allows others to be added. We're working on an iWARP transport, and also see UDP over DCB as another possibility. This code handles transport registration. Signed-off-by: Andy Grover Signed-off-by: David S. Miller