Re: [PATCH] block: optimize bvec iteration in bvec_iter_advance

On 2/28/19 9:00 AM, Christoph Hellwig wrote:

There is no need to only iterate in chunks of PAGE_SIZE or less in
bvec_iter_advance, given that the callers pass in the chunk length that
they are operating on - either that already is less than PAGE_SIZE
because they do classic page-based iteration, or it is larger because
the caller operates on multi-page bvecs.

This should help optimizing shaving off a few cycles of the I/O hot
path.

Applied, thanks.

-- 
Jens Axboe