diff options
| author | David Howells <dhowells@redhat.com> | 2017-05-24 19:02:32 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-05-25 20:15:11 +0300 |
| commit | 2baec2c3f854d1f79c7bb28386484e144e864a14 (patch) | |
| tree | 4b416db84d3579fe825458d021951955d120ed69 /net/rxrpc/conn_service.c | |
| parent | 878cd3ba37f77ded9c85e9857e3182a7fe8f5dc3 (diff) | |
| download | linux-2baec2c3f854d1f79c7bb28386484e144e864a14.tar.xz | |
rxrpc: Support network namespacing
Support network namespacing in AF_RXRPC with the following changes:
(1) All the local endpoint, peer and call lists, locks, counters, etc. are
moved into the per-namespace record.
(2) All the connection tracking is moved into the per-namespace record
with the exception of the client connection ID tree, which is kept
global so that connection IDs are kept unique per-machine.
(3) Each namespace gets its own epoch. This allows each network namespace
to pretend to be a separate client machine.
(4) The /proc/net/rxrpc_xxx files are now called /proc/net/rxrpc/xxx and
the contents reflect the namespace.
fs/afs/ should be okay with this patch as it explicitly requires the current
net namespace to be init_net to permit a mount to proceed at the moment. It
will, however, need updating so that cells, IP addresses and DNS records are
per-namespace also.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/rxrpc/conn_service.c')
| -rw-r--r-- | net/rxrpc/conn_service.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/net/rxrpc/conn_service.c b/net/rxrpc/conn_service.c index eef551f40dc2..edfc633f7d5e 100644 --- a/net/rxrpc/conn_service.c +++ b/net/rxrpc/conn_service.c @@ -121,7 +121,8 @@ replace_old_connection: * Preallocate a service connection. The connection is placed on the proc and * reap lists so that we don't have to get the lock from BH context. */ -struct rxrpc_connection *rxrpc_prealloc_service_connection(gfp_t gfp) +struct rxrpc_connection *rxrpc_prealloc_service_connection(struct rxrpc_net *rxnet, + gfp_t gfp) { struct rxrpc_connection *conn = rxrpc_alloc_connection(gfp); @@ -132,10 +133,10 @@ struct rxrpc_connection *rxrpc_prealloc_service_connection(gfp_t gfp) conn->state = RXRPC_CONN_SERVICE_PREALLOC; atomic_set(&conn->usage, 2); - write_lock(&rxrpc_connection_lock); - list_add_tail(&conn->link, &rxrpc_connections); - list_add_tail(&conn->proc_link, &rxrpc_connection_proc_list); - write_unlock(&rxrpc_connection_lock); + write_lock(&rxnet->conn_lock); + list_add_tail(&conn->link, &rxnet->service_conns); + list_add_tail(&conn->proc_link, &rxnet->conn_proc_list); + write_unlock(&rxnet->conn_lock); trace_rxrpc_conn(conn, rxrpc_conn_new_service, atomic_read(&conn->usage), |