diff options
| author | Sunil Mushran <sunil.mushran@oracle.com> | 2010-12-15 01:14:27 +0300 |
|---|---|---|
| committer | Joel Becker <joel.becker@oracle.com> | 2010-12-16 11:46:09 +0300 |
| commit | 2b190ce9bf923fb1fd8ccff18e9bab72da40da06 (patch) | |
| tree | 450147f679106040fcd0f40008cb7fe7c05904d6 /fs/ocfs2/cluster | |
| parent | 66f4500573fe5a1b455e5f7b30068a623a94117f (diff) | |
| download | linux-2b190ce9bf923fb1fd8ccff18e9bab72da40da06.tar.xz | |
ocfs2/cluster: Pin the remote node item in configfs
o2net pins the node item of the remote node in configfs before initiating
the connection. It is unpinned on disconnect. This is to prevent the node
item from being unlinked while it is still in use.
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Diffstat (limited to 'fs/ocfs2/cluster')
| -rw-r--r-- | fs/ocfs2/cluster/tcp.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c index 9aa426e42123..92de96cd247d 100644 --- a/fs/ocfs2/cluster/tcp.c +++ b/fs/ocfs2/cluster/tcp.c @@ -355,6 +355,7 @@ static void sc_kref_release(struct kref *kref) sc->sc_sock = NULL; } + o2nm_undepend_item(&sc->sc_node->nd_item); o2nm_node_put(sc->sc_node); sc->sc_node = NULL; @@ -376,6 +377,7 @@ static struct o2net_sock_container *sc_alloc(struct o2nm_node *node) { struct o2net_sock_container *sc, *ret = NULL; struct page *page = NULL; + int status = 0; page = alloc_page(GFP_NOFS); sc = kzalloc(sizeof(*sc), GFP_NOFS); @@ -386,6 +388,13 @@ static struct o2net_sock_container *sc_alloc(struct o2nm_node *node) o2nm_node_get(node); sc->sc_node = node; + /* pin the node item of the remote node */ + status = o2nm_depend_item(&node->nd_item); + if (status) { + mlog_errno(status); + o2nm_node_put(node); + goto out; + } INIT_WORK(&sc->sc_connect_work, o2net_sc_connect_completed); INIT_WORK(&sc->sc_rx_work, o2net_rx_until_empty); INIT_WORK(&sc->sc_shutdown_work, o2net_shutdown_sc); |