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Commit 45bc0dce authored by Trond Myklebust's avatar Trond Myklebust
Browse files

SUNRPC: Fix an RCU dereference in xprt_reserve 



Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent 6a24dfb6

net/sunrpc/xprt.c

+4 −1
Original line number Diff line number Diff line
@@ -1093,7 +1093,7 @@ EXPORT_SYMBOL_GPL(xprt_free); 
 */

void xprt_reserve(struct rpc_task *task)

{

	struct rpc_xprt	*xprt = task->tk_xprt;

	struct rpc_xprt	*xprt;



	task->tk_status = 0;

	if (task->tk_rqstp != NULL)
@@ -1101,7 +1101,10 @@ void xprt_reserve(struct rpc_task *task) 


	task->tk_timeout = 0;

	task->tk_status = -EAGAIN;

	rcu_read_lock();

	xprt = rcu_dereference(task->tk_client->cl_xprt);

	xprt->ops->alloc_slot(xprt, task);

	rcu_read_unlock();

}



static inline __be32 xprt_alloc_xid(struct rpc_xprt *xprt)