From 8ef130f9ec27973f7b49e20c5a3b9134ca33026c Mon Sep 17 00:00:00 2001 From: Long Li Date: Wed, 22 Nov 2017 17:38:37 -0700 Subject: CIFS: SMBD: Implement function to destroy a SMB Direct connection Add function to tear down a SMB Direct connection. This is used by upper layer to free all SMB Direct connection and transport resources. Signed-off-by: Long Li Signed-off-by: Steve French Reviewed-by: Pavel Shilovsky Reviewed-by: Ronnie Sahlberg --- fs/cifs/smbdirect.c | 16 ++++++++++++++++ fs/cifs/smbdirect.h | 3 +++ 2 files changed, 19 insertions(+) (limited to 'fs/cifs') diff --git a/fs/cifs/smbdirect.c b/fs/cifs/smbdirect.c index a96058a3ad87..b462a2f3863b 100644 --- a/fs/cifs/smbdirect.c +++ b/fs/cifs/smbdirect.c @@ -1387,6 +1387,22 @@ static void idle_connection_timer(struct work_struct *work) info->keep_alive_interval*HZ); } +/* Destroy this SMBD connection, called from upper layer */ +void smbd_destroy(struct smbd_connection *info) +{ + log_rdma_event(INFO, "destroying rdma session\n"); + + /* Kick off the disconnection process */ + smbd_disconnect_rdma_connection(info); + + log_rdma_event(INFO, "wait for transport being destroyed\n"); + wait_event(info->wait_destroy, + info->transport_status == SMBD_DESTROYED); + + destroy_workqueue(info->workqueue); + kfree(info); +} + /* * Reconnect this SMBD connection, called from upper layer * return value: 0 on success, or actual error code diff --git a/fs/cifs/smbdirect.h b/fs/cifs/smbdirect.h index f1db2ee7c8c2..f0ce934650c1 100644 --- a/fs/cifs/smbdirect.h +++ b/fs/cifs/smbdirect.h @@ -249,6 +249,8 @@ struct smbd_connection *smbd_get_connection( /* Reconnect SMBDirect session */ int smbd_reconnect(struct TCP_Server_Info *server); +/* Destroy SMBDirect session */ +void smbd_destroy(struct smbd_connection *info); #else #define cifs_rdma_enabled(server) 0 @@ -256,6 +258,7 @@ struct smbd_connection {}; static inline void *smbd_get_connection( struct TCP_Server_Info *server, struct sockaddr *dstaddr) {return NULL;} static inline int smbd_reconnect(struct TCP_Server_Info *server) {return -1; } +static inline void smbd_destroy(struct smbd_connection *info) {} #endif #endif -- cgit v1.2.3