Re: [syzbot] Re: [syzbot] [nfs?] [net?] possible deadlock in rpc_close_pipes

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Subject: Re: [syzbot] [nfs?] [net?] possible deadlock in rpc_close_pipes
Author: lizhi.xu@windriver.com

#syz test

diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 0bd1df2ebb47..ae5643e0bc43 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -693,7 +693,7 @@ void
 rpc_unlink(struct rpc_pipe *pipe)
 {
 	if (pipe->dentry) {
-		simple_recursive_removal(pipe->dentry, rpc_close_pipes);
+		locked_recursive_removal(pipe->dentry, rpc_close_pipes);
 		pipe->dentry = NULL;
 	}
 }