Re: [PATCH v5 4/8] iov_iter: use bvec iterator to implement iterate_bvec()

Looks fine, Reviewed-by: Christoph Hellwig

[PATCH v5 4/8] iov_iter: use bvec iterator to implement iterate_bvec()

bvec has one native/mature iterator for long time, so not necessary to use the reinvented wheel for iterating bvecs in lib/iov_iter.c. Two ITER_BVEC test cases are run: - xfstest(-g auto) on loop dio/aio, no regression found - swap file works well under extreme stress(stress-ng --a