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SUNRPC: Fix a race with XPRT_CONNECTING

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[ Upstream commit cf76785d30 ]

Ensure that we clear XPRT_CONNECTING before releasing the XPRT_LOCK so that
we don't have races between the (asynchronous) socket setup code and
tasks in xprt_connect().

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Tested-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Trond Myklebust
2018-12-17 17:38:51 -05:00
committed by Greg Kroah-Hartman
parent 4f784484bd
commit 233ba13db6
1 changed files with 2 additions and 2 deletions
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4
net/sunrpc/xprtsock.c
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@@ -2244,8 +2244,8 @@ static void xs_udp_setup_socket(struct work_struct *work)
trace_rpc_socket_connect(xprt, sock, 0);
status = 0;
out:
xprt_unlock_connect(xprt, transport);
xprt_clear_connecting(xprt);
xprt_unlock_connect(xprt, transport);
xprt_wake_pending_tasks(xprt, status);
}
@@ -2480,8 +2480,8 @@ static void xs_tcp_setup_socket(struct work_struct *work)
}
status = -EAGAIN;
out:
xprt_unlock_connect(xprt, transport);
xprt_clear_connecting(xprt);
xprt_unlock_connect(xprt, transport);
xprt_wake_pending_tasks(xprt, status);
}