The changes looks good to me:
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
I did a little digging and the invalidatepage call first appeared
in
commit 90ce6b6a90f62578a141359ffe9261e65f2c5265
Author: Steve Lord <lord@xxxxxxx>
Date: Mon Sep 2 12:36:59 2002 +0000
move page_buf_io.c to xfs_aops.c
The old page_buf_io.c file seems to not have made it through to
git, so this seems rather prehistoric.
