filemap: pass vm_fault to the mmap ra helpers

All of the arguments to these functions come from the vmf, and the
following patches are going to add more arguments.  Cut down on the amount
of arguments passed by simply passing in the vmf to these two helpers.

Change-Id: I9c83716967e5ded64682a935c6a3c6b2fa01175f
Link: http://lkml.kernel.org/r/20181211173801.29535-3-josef@toxicpanda.com


Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Git-Commit: 38db5b064e830732ee8c821517c065adb931ecdb
Git-Repo: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git


Signed-off-by: Vijayanand Jitta <vjitta@codeaurora.org>