btrfs: switch check_direct_IO() to iov_iter
authorAl Viro <viro@zeniv.linux.org.uk>
Sat, 22 Mar 2014 09:15:17 +0000 (05:15 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Tue, 6 May 2014 21:32:53 +0000 (17:32 -0400)
... and don't open-code iov_iter_alignment() there

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
fs/btrfs/inode.c

Simple merge