Commit 7d3e26a0 authored by Benjamin Coddington's avatar Benjamin Coddington Committed by Trond Myklebust
Browse files

NFS: Cancel all existing RPC tasks when shutdown 



Walk existing RPC tasks and cancel them with -EIO when the client is
shutdown.

Signed-off-by: default avatarBenjamin Coddington <bcodding@redhat.com>
Signed-off-by: default avatarTrond Myklebust <trond.myklebust@hammerspace.com>
parent d9615d16

fs/nfs/sysfs.c

+15 −4
Original line number Diff line number Diff line
@@ -217,6 +217,17 @@ void nfs_netns_sysfs_destroy(struct nfs_net *netns) 
	}

}



static bool shutdown_match_client(const struct rpc_task *task, const void *data)

{

	return true;

}



static void shutdown_client(struct rpc_clnt *clnt)

{

	clnt->cl_shutdown = 1;

	rpc_cancel_tasks(clnt, -EIO, shutdown_match_client, NULL);

}



static ssize_t

shutdown_show(struct kobject *kobj, struct kobj_attribute *attr,

				char *buf)
@@ -247,14 +258,14 @@ shutdown_store(struct kobject *kobj, struct kobj_attribute *attr, 
		goto out;



	server->flags |= NFS_MOUNT_SHUTDOWN;

	server->client->cl_shutdown = 1;

	server->nfs_client->cl_rpcclient->cl_shutdown = 1;

	shutdown_client(server->client);

	shutdown_client(server->nfs_client->cl_rpcclient);



	if (!IS_ERR(server->client_acl))

		server->client_acl->cl_shutdown = 1;

		shutdown_client(server->client_acl);



	if (server->nlm_host)

		server->nlm_host->h_rpcclnt->cl_shutdown = 1;

		shutdown_client(server->nlm_host->h_rpcclnt);

out:

	return count;

}