From: Trond Myklebust trond.myklebust@hammerspace.com
[ Upstream commit 14e41b16e8cb677bb440dca2edba8b041646c742 ]
Once a task calls exit_signals() it can no longer be signalled. So do not allow it to do killable waits.
Reviewed-by: Jeff Layton jlayton@kernel.org Signed-off-by: Trond Myklebust trond.myklebust@hammerspace.com Signed-off-by: Sasha Levin sashal@kernel.org --- net/sunrpc/sched.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c index 9b45fbdc90cab..73bc39281ef5f 100644 --- a/net/sunrpc/sched.c +++ b/net/sunrpc/sched.c @@ -276,6 +276,8 @@ EXPORT_SYMBOL_GPL(rpc_destroy_wait_queue);
static int rpc_wait_bit_killable(struct wait_bit_key *key, int mode) { + if (unlikely(current->flags & PF_EXITING)) + return -EINTR; schedule(); if (signal_pending_state(mode, current)) return -ERESTARTSYS;