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rpc: share one xps between all backchannels

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The spec allows backchannels for multiple clients to share the same tcp
connection.  When that happens, we need to use the same xprt for all of
them.  Similarly, we need the same xps.

This fixes list corruption introduced by the multipath code.

Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Acked-by: Trond Myklebust <trondmy@primarydata.com>
This commit is contained in:
J. Bruce Fields
2016-05-17 12:38:21 -04:00
parent d50039ea5e
commit 39a9beab5a
5 changed files with 19 additions and 4 deletions
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1
net/sunrpc/xprtsock.c
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@@ -3057,6 +3057,7 @@ static struct rpc_xprt *xs_setup_bc_tcp(struct xprt_create *args)
return xprt;
args->bc_xprt->xpt_bc_xprt = NULL;
args->bc_xprt->xpt_bc_xps = NULL;
xprt_put(xprt);
ret = ERR_PTR(-EINVAL);
out_err: