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authorYufan Chen <wiz.chen@gmail.com>2022-01-09 11:34:16 +0900
committerSteve French <stfrench@microsoft.com>2022-01-10 12:44:19 -0600
commit136dff3a6b71dc16c30b35cc390feb0bfc32ed50 (patch)
treee7bfce4dd3e83ee220ebf7bb4abc1e00498cae4b /fs/ksmbd
parent4d02c4fdc0e256b493f9a3b604c7ff18f0019f17 (diff)
ksmbd: add smb-direct shutdown
When killing ksmbd server after connecting rdma, ksmbd threads does not terminate properly because the rdma connection is still alive. This patch add shutdown operation to disconnect rdma connection while ksmbd threads terminate. Signed-off-by: Yufan Chen <wiz.chen@gmail.com> Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/ksmbd')
-rw-r--r--fs/ksmbd/connection.c9
-rw-r--r--fs/ksmbd/connection.h1
-rw-r--r--fs/ksmbd/transport_rdma.c10
3 files changed, 19 insertions, 1 deletions
diff --git a/fs/ksmbd/connection.c b/fs/ksmbd/connection.c
index d1d0105be5b1..208d2cff7bd3 100644
--- a/fs/ksmbd/connection.c
+++ b/fs/ksmbd/connection.c
@@ -387,17 +387,24 @@ out:
static void stop_sessions(void)
{
struct ksmbd_conn *conn;
+ struct ksmbd_transport *t;
again:
read_lock(&conn_list_lock);
list_for_each_entry(conn, &conn_list, conns_list) {
struct task_struct *task;
- task = conn->transport->handler;
+ t = conn->transport;
+ task = t->handler;
if (task)
ksmbd_debug(CONN, "Stop session handler %s/%d\n",
task->comm, task_pid_nr(task));
conn->status = KSMBD_SESS_EXITING;
+ if (t->ops->shutdown) {
+ read_unlock(&conn_list_lock);
+ t->ops->shutdown(t);
+ read_lock(&conn_list_lock);
+ }
}
read_unlock(&conn_list_lock);
diff --git a/fs/ksmbd/connection.h b/fs/ksmbd/connection.h
index 7e0730a262da..7a59aacb5daa 100644
--- a/fs/ksmbd/connection.h
+++ b/fs/ksmbd/connection.h
@@ -117,6 +117,7 @@ struct ksmbd_conn_ops {
struct ksmbd_transport_ops {
int (*prepare)(struct ksmbd_transport *t);
void (*disconnect)(struct ksmbd_transport *t);
+ void (*shutdown)(struct ksmbd_transport *t);
int (*read)(struct ksmbd_transport *t, char *buf, unsigned int size);
int (*writev)(struct ksmbd_transport *t, struct kvec *iovs, int niov,
int size, bool need_invalidate_rkey,
diff --git a/fs/ksmbd/transport_rdma.c b/fs/ksmbd/transport_rdma.c
index 86fd64511512..3c1ec1ac0b27 100644
--- a/fs/ksmbd/transport_rdma.c
+++ b/fs/ksmbd/transport_rdma.c
@@ -1453,6 +1453,15 @@ static void smb_direct_disconnect(struct ksmbd_transport *t)
free_transport(st);
}
+static void smb_direct_shutdown(struct ksmbd_transport *t)
+{
+ struct smb_direct_transport *st = smb_trans_direct_transfort(t);
+
+ ksmbd_debug(RDMA, "smb-direct shutdown cm_id=%p\n", st->cm_id);
+
+ smb_direct_disconnect_rdma_work(&st->disconnect_work);
+}
+
static int smb_direct_cm_handler(struct rdma_cm_id *cm_id,
struct rdma_cm_event *event)
{
@@ -2201,6 +2210,7 @@ out:
static struct ksmbd_transport_ops ksmbd_smb_direct_transport_ops = {
.prepare = smb_direct_prepare,
.disconnect = smb_direct_disconnect,
+ .shutdown = smb_direct_shutdown,
.writev = smb_direct_writev,
.read = smb_direct_read,
.rdma_read = smb_direct_rdma_read,