Re: [PATCH] target/file: don't zero iter before iov_iter_bvec
From: Bart Van Assche
Date: Sun Jan 10 2021 - 21:50:00 EST
On 1/9/21 7:53 AM, Pavel Begunkov wrote:
> iov_iter_bvec() initialises iterators well, no need to pre-zero it
> beforehand as done in fd_execute_rw_aio(). Compilers can't optimise it
> out and generate extra code for that (confirmed with assembly).
Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>