cleanup the walk_page_range interface

From: Christoph Hellwig <hch@lst.de>
To: Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: "Thomas Hellström" <thomas@shipmail.org>,
	"Jerome Glisse" <jglisse@redhat.com>,
	"Jason Gunthorpe" <jgg@mellanox.com>,
	"Steven Price" <steven.price@arm.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: cleanup the walk_page_range interface
Date: Thu,  8 Aug 2019 18:42:37 +0300	[thread overview]
Message-ID: <20190808154240.9384-1-hch@lst.de> (raw)

Hi all,

this series is based on a patch from Linus to split the callbacks
passed to walk_page_range and walk_page_vma into a separate structure
that can be marked const, with various cleanups from me on top.

Note that both Thomas and Steven have series touching this area pending,
and there are a couple consumer in flux too - the hmm tree already
conflicts with this series, and I have potential dma changes on top of
the consumers in Thomas and Steven's series, so we'll probably need a
git tree similar to the hmm one to synchronize these updates.

This series is also available as a git tre here:

    git://git.infradead.org/users/hch/misc.git pagewalk-cleanup

Gitweb:

    http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/pagewalk-cleanup

Diffstat:

    14 files changed, 285 insertions(+), 278 deletions(-)