files->fd[fd] = file; 
fdt->fd[fd] = file; 
void fastcall fd_install(unsigned int fd, struct file * file){	struct files_struct *files = current->files;	spin_lock(&files->file_lock);	if (unlikely(files->fd[fd] != NULL))		BUG();	files->fd[fd] = file;	spin_unlock(&files->file_lock);}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/badf16621c1f9d1ac753be056fce11b43d6e0be5/open.c/buggy/fs/open.c