diff options
| -rw-r--r-- | fs/cifs/connect.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 8a9fded7c135..36ca2045009b 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -837,6 +837,7 @@ cifs_demultiplex_thread(void *p) struct TCP_Server_Info *server = p; unsigned int pdu_length; char *buf = NULL; + struct task_struct *task_to_wake = NULL; struct mid_q_entry *mid_entry; current->flags |= PF_MEMALLOC; @@ -927,7 +928,19 @@ cifs_demultiplex_thread(void *p) if (server->smallbuf) /* no sense logging a debug message if NULL */ cifs_small_buf_release(server->smallbuf); + task_to_wake = xchg(&server->tsk, NULL); clean_demultiplex_info(server); + + /* if server->tsk was NULL then wait for a signal before exiting */ + if (!task_to_wake) { + set_current_state(TASK_INTERRUPTIBLE); + while (!signal_pending(current)) { + schedule(); + set_current_state(TASK_INTERRUPTIBLE); + } + set_current_state(TASK_RUNNING); + } + module_put_and_exit(0); } @@ -2050,6 +2063,8 @@ cifs_find_tcp_session(struct smb_vol *vol) static void cifs_put_tcp_session(struct TCP_Server_Info *server) { + struct task_struct *task; + spin_lock(&cifs_tcp_ses_lock); if (--server->srv_count > 0) { spin_unlock(&cifs_tcp_ses_lock); @@ -2073,6 +2088,10 @@ cifs_put_tcp_session(struct TCP_Server_Info *server) kfree(server->session_key.response); server->session_key.response = NULL; server->session_key.len = 0; + + task = xchg(&server->tsk, NULL); + if (task) + force_sig(SIGKILL, task); } static struct TCP_Server_Info * |