On Sun, Feb 05, 2017 at 02:22:13PM +0800, Ming Lei wrote: > Firstly bio_clone_mddev() is used in raid normal I/O and isn't > in resync I/O path. > > Secondly all the direct access to bvec table in raid happens on > resync I/O except for write behind of raid1, in which we still > use bio_clone() for allocating new bvec table. > > So this patch replaces bio_clone() with bio_clone_fast() > in bio_clone_mddev(). Having the _fast in the name would be really useful for the reader. And as far as I can tell in the callers mddev is never NULL and neither is ->bio_set, so replacing bio_clone_mddev with raw calls to bio_clone_fast would be my preference.
