Re: [PATCH] target/file: don't zero iter before iov_iter_bvec

[Chaitanya Kulkarni]

On 1/9/21 12:40, Pavel Begunkov wrote:
> I expect you won't find any, but such little things can pile up
> into a not-easy-to-spot overhead over time.

That is what I suspected with the resulting assembly. The commit log
needs to document that there is no direct impact on the performance
which can be seen with this patch, but this is nice to have
micro-optimization in the long run.