Commit e0d9ae69 authored by David S. Miller's avatar David S. Miller
Browse files

Merge tag 'rxrpc-next-20200914' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs 



David Howells says:

====================
rxrpc: Fixes for the connection manager rewrite

Here are some fixes for the connection manager rewrite:

 (1) Fix a goto to the wrong place in error handling.

 (2) Fix a missing NULL pointer check.

 (3) The stored allocation error needs to be stored signed.

 (4) Fix a leak of connection bundle when clearing connections due to
     net namespace exit.

 (5) Fix an overget of the bundle when setting up a new client conn.
====================

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 33acd755 f1b44974

include/trace/events/rxrpc.h

+1 −1
Original line number Diff line number Diff line
@@ -579,7 +579,7 @@ TRACE_EVENT(rxrpc_client, 
		    __entry->channel = channel;

		    __entry->usage = conn ? atomic_read(&conn->usage) : -2;

		    __entry->op = op;

		    __entry->cid = conn->proto.cid;

		    __entry->cid = conn ? conn->proto.cid : 0;

			   ),



	    TP_printk("C=%08x h=%2d %s i=%08x u=%d",

net/rxrpc/ar-internal.h

+1 −1
Original line number Diff line number Diff line
@@ -395,7 +395,7 @@ struct rxrpc_bundle { 
	unsigned int		debug_id;

	bool			try_upgrade;	/* True if the bundle is attempting upgrade */

	bool			alloc_conn;	/* True if someone's getting a conn */

	unsigned short		alloc_error;	/* Error from last conn allocation */

	short			alloc_error;	/* Error from last conn allocation */

	spinlock_t		channel_lock;

	struct rb_node		local_node;	/* Node in local->client_conns */

	struct list_head	waiting_calls;	/* Calls waiting for channels */

net/rxrpc/conn_client.c

+4 −3
Original line number Diff line number Diff line
@@ -433,7 +433,6 @@ static void rxrpc_add_conn_to_bundle(struct rxrpc_bundle *bundle, gfp_t gfp) 
		if (!rxrpc_may_reuse_conn(old)) {

			if (old)

				trace_rxrpc_client(old, -1, rxrpc_client_replace);

			candidate->bundle = rxrpc_get_bundle(bundle);

			candidate->bundle_shift = shift;

			bundle->conns[i] = candidate;

			for (j = 0; j < RXRPC_MAXCALLS; j++)
@@ -724,8 +723,9 @@ granted_channel: 
	/* Paired with the write barrier in rxrpc_activate_one_channel(). */

	smp_rmb();



out:

out_put_bundle:

	rxrpc_put_bundle(bundle);

out:

	_leave(" = %d", ret);

	return ret;
@@ -742,7 +742,7 @@ wait_failed: 
	trace_rxrpc_client(call->conn, ret, rxrpc_client_chan_wait_failed);

	rxrpc_set_call_completion(call, RXRPC_CALL_LOCAL_ERROR, 0, ret);

	rxrpc_disconnect_client_call(bundle, call);

	goto out;

	goto out_put_bundle;

}



/*
@@ -1111,6 +1111,7 @@ void rxrpc_clean_up_local_conns(struct rxrpc_local *local) 
		conn = list_entry(graveyard.next,

				  struct rxrpc_connection, cache_link);

		list_del_init(&conn->cache_link);

		rxrpc_unbundle_conn(conn);

		rxrpc_put_connection(conn);

	}

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