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authorIlya Dryomov <idryomov@gmail.com>2015-06-25 16:47:45 +0200
committerIlya Dryomov <idryomov@gmail.com>2015-07-09 19:30:34 +0200
commit757856d2b9568a701df9ea6a4be68effbb9d6f44 (patch)
treec6f943fd91a6e1901745f114a1387e98b8031eed /net/ceph/messenger.c
parentLinux 4.2-rc1 (diff)
downloadlinux-757856d2b9568a701df9ea6a4be68effbb9d6f44.tar.xz
linux-757856d2b9568a701df9ea6a4be68effbb9d6f44.zip
libceph: enable ceph in a non-default network namespace
Grab a reference on a network namespace of the 'rbd map' (in case of rbd) or 'mount' (in case of ceph) process and use that to open sockets instead of always using init_net and bailing if network namespace is anything but init_net. Be careful to not share struct ceph_client instances between different namespaces and don't add any code in the !CONFIG_NET_NS case. This is based on a patch from Hong Zhiguo <zhiguohong@tencent.com>. Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Sage Weil <sage@redhat.com>
Diffstat (limited to 'net/ceph/messenger.c')
-rw-r--r--net/ceph/messenger.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 1679f47280e2..5c1f98ea6741 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -6,6 +6,7 @@
#include <linux/inet.h>
#include <linux/kthread.h>
#include <linux/net.h>
+#include <linux/nsproxy.h>
#include <linux/slab.h>
#include <linux/socket.h>
#include <linux/string.h>
@@ -479,7 +480,7 @@ static int ceph_tcp_connect(struct ceph_connection *con)
int ret;
BUG_ON(con->sock);
- ret = sock_create_kern(&init_net, con->peer_addr.in_addr.ss_family,
+ ret = sock_create_kern(read_pnet(&con->msgr->net), paddr->ss_family,
SOCK_STREAM, IPPROTO_TCP, &sock);
if (ret)
return ret;
@@ -2944,11 +2945,18 @@ void ceph_messenger_init(struct ceph_messenger *msgr,
msgr->tcp_nodelay = tcp_nodelay;
atomic_set(&msgr->stopping, 0);
+ write_pnet(&msgr->net, get_net(current->nsproxy->net_ns));
dout("%s %p\n", __func__, msgr);
}
EXPORT_SYMBOL(ceph_messenger_init);
+void ceph_messenger_fini(struct ceph_messenger *msgr)
+{
+ put_net(read_pnet(&msgr->net));
+}
+EXPORT_SYMBOL(ceph_messenger_fini);
+
static void clear_standby(struct ceph_connection *con)
{
/* come back from STANDBY? */