if ((rpc = server->client) != NULL) 
if (!IS_ERR(rpc)) 
nfs_umount_begin(struct super_block *sb){	struct nfs_server *server = NFS_SB(sb);	struct rpc_clnt	*rpc;	/* -EIO all pending I/O */	if ((rpc = server->client) != NULL)		rpc_killall_tasks(rpc);}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/6a19275ada9137435da58990c8f8d3f58e170bf1/inode.c/clean/fs/nfs/inode.c