tree 6454f28502bd66195b6cd71afd3c5f00c62c18af
parent 8442fa46cf244cd65401f1a5bb830ed420fc1e54
author Al Viro <viro@zeniv.linux.org.uk> 1417116157 -0500
committer Al Viro <viro@zeniv.linux.org.uk> 1417131853 -0500

iov_iter.c: get rid of bvec_copy_page_{to,from}_iter()

Just have copy_page_{to,from}_iter() fall back to kmap_atomic +
copy_{to,from}_iter() + kunmap_atomic() in ITER_BVEC case.  As
the matter of fact, that's what we want to do for any iov_iter
kind that isn't blocking - e.g. ITER_KVEC will also go that way
once we recognize it on iov_iter.c primitives level

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>