From 86d564c84c38b1ec06d9f2120d6a7373dcaeff0c Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 8 Feb 2014 20:42:52 -0500
Subject: [PATCH] constify blk_rq_map_user_iov() and friends

sg_iovec array passed to it can be const

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Reading git-format-patch failed