linux-kernel – 在Linux中,我如何从“struct file”结构中获取

就像我在gdb中有一个断点一样,我怎么能用gdb环顾四周找到文件名呢？

我试过在filp.f_path,filp.f_inode等处查看.我无法在任何地方看到文件名.

ssize_t do_sync_write(struct file *filp,const char __user *buf,size_t len,loff_t *ppos)
{
     struct iovec iov = { .iov_base = (void __user *)buf,.iov_len = len };
     struct kiocb kiocb;
     ssize_t ret;

     init_sync_kiocb(&kiocb,filp);
     kiocb.ki_pos = *ppos;
     kiocb.ki_left = len;
     kiocb.ki_nbytes = len;

     ret = filp->f_op->aio_write(&kiocb,&iov,1,kiocb.ki_pos);
     if (-EIOCBQUEUED == ret)
             ret = wait_on_sync_kiocb(&kiocb);
     *ppos = kiocb.ki_pos;
     return ret;
}