Commit 7eac5264 authored by Trond Myklebust's avatar Trond Myklebust
Browse files

SUNRPC: Add a flag to avoid reference counts on credentials 



Add a flag to signal to the RPC layer that the credential is already
pinned for the duration of the RPC call.

Signed-off-by: default avatarTrond Myklebust <trond.myklebust@hammerspace.com>
parent 1d179d6b

include/linux/sunrpc/sched.h

+1 −0
Original line number Diff line number Diff line
@@ -132,6 +132,7 @@ struct rpc_task_setup { 
#define RPC_TASK_TIMEOUT	0x1000		/* fail with ETIMEDOUT on timeout */

#define RPC_TASK_NOCONNECT	0x2000		/* return ENOTCONN if not connected */

#define RPC_TASK_NO_RETRANS_TIMEOUT	0x4000		/* wait forever for a reply */

#define RPC_TASK_CRED_NOREF	0x8000		/* No refcount on the credential */



#define RPC_IS_ASYNC(t)		((t)->tk_flags & RPC_TASK_ASYNC)

#define RPC_IS_SWAPPER(t)	((t)->tk_flags & RPC_TASK_SWAPPER)

net/sunrpc/clnt.c

+3 −2
Original line number Diff line number Diff line
@@ -1099,8 +1099,9 @@ rpc_task_set_rpc_message(struct rpc_task *task, const struct rpc_message *msg) 
		task->tk_msg.rpc_proc = msg->rpc_proc;

		task->tk_msg.rpc_argp = msg->rpc_argp;

		task->tk_msg.rpc_resp = msg->rpc_resp;

		if (msg->rpc_cred != NULL)

			task->tk_msg.rpc_cred = get_cred(msg->rpc_cred);

		task->tk_msg.rpc_cred = msg->rpc_cred;

		if (!(task->tk_flags & RPC_TASK_CRED_NOREF))

			get_cred(task->tk_msg.rpc_cred);

	}

}

net/sunrpc/sched.c

+2 −1
Original line number Diff line number Diff line
@@ -1162,6 +1162,7 @@ static void rpc_release_resources_task(struct rpc_task *task) 
{

	xprt_release(task);

	if (task->tk_msg.rpc_cred) {

		if (!(task->tk_flags & RPC_TASK_CRED_NOREF))

			put_cred(task->tk_msg.rpc_cred);

		task->tk_msg.rpc_cred = NULL;

	}

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