Re: splice: infinite busy loop lockup bug

Tetsuo Handa
2020-08-07T14:17:53Z

On 2020/08/07 22:41, Ming Lei wrote:
>> FWIW, my preference would be to have for_each_bvec() advance past zero-length
>> segments; I'll need to go through its uses elsewhere in the tree first, though
>> (after I grab some sleep),
>
> Usually block layer doesn't allow/support zero bvec, however we can make
> for_each_bvec() to support it only.
>
> Tetsuo, can you try the following patch?

Yes, this patch solves the lockup. Thank you.