On 2/28/19 7:13 AM, Christoph Hellwig wrote: > On Wed, Feb 27, 2019 at 08:40:13PM +0800, Ming Lei wrote: >> mp_bvec_for_each_segment() is a bit big for the iteration, so introduce >> a light-weight helper for iterating over pages, then 32bytes stack >> space can be saved. > > The version in Jens' tree seems to add this helper, but no actual > users..
io_uring uses it, which is based on the block branch. But hopefully that too can go away, if the iov/bio no-ref stuff is reviewed + merged... -- Jens Axboe
