CEPH-Devel Archive on lore.kernel.org
 help / color / Atom feed
From: Christoph Hellwig <hch@lst.de>
To: Souptick Joarder <jrdr.linux@gmail.com>,
	Matthew Wilcox <willy@infradead.org>
Cc: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org, devel@lists.orangefs.org,
	ceph-devel@vger.kernel.org, linux-btrfs@vger.kernel.org,
	linux-ext4@vger.kernel.org, ocfs2-devel@oss.oracle.com,
	linux-mtd@lists.infradead.org, dri-devel@lists.freedesktop.org,
	lustre-devel@lists.lustre.org,
	linux-arm-kernel@lists.infradead.org, linux-s390@vger.kernel.org
Subject: vm_fault_t conversion, for real
Date: Wed, 16 May 2018 07:43:34 +0200
Message-ID: <20180516054348.15950-1-hch@lst.de> (raw)

Hi all,

this series tries to actually turn vm_fault_t into a type that can be
typechecked and checks the fallout instead of sprinkling random
annotations without context.

The first one fixes a real bug in orangefs, the second and third fix
mismatched existing vm_fault_t annotations on the same function, the
fourth removes an unused export that was in the chain.  The remainder
until the last one do some not quite trivial conversions, and the last
one does the trivial mass annotation and flips vm_fault_t to a __bitwise
unsigned int - the unsigned means we also get plain compiler type
checking for the new ->fault signature even without sparse.

This has survived an x86 allyesconfig build, and got a SUCCESS from the
buildbot that I don't really trust - I'm pretty sure there are bits
and pieces hiding in other architectures that it hasn't caught up to.

The sparse annotations are manuall verified for the core MM code and
a few other interesting bits (e.g. DAX and the x86 fault code)

The series is against linux-next as of 2018/05/15 to make sure any
annotations in subsystem trees are picked up.

             reply index

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-16  5:43 Christoph Hellwig [this message]
2018-05-16  5:43 ` [PATCH 01/14] orangefs: don't return errno values from ->fault Christoph Hellwig
2018-05-16 11:18   ` Matthew Wilcox
2018-05-16  5:43 ` [PATCH 02/14] fs: make the filemap_page_mkwrite prototype consistent Christoph Hellwig
2018-05-16  5:43 ` [PATCH 03/14] dax: make the dax_iomap_fault " Christoph Hellwig
2018-05-16  5:43 ` [PATCH 04/14] mm: remove the unused device_private_entry_fault export Christoph Hellwig
2018-05-16  5:43 ` [PATCH 05/14] ceph: untangle ceph_filemap_fault Christoph Hellwig
2018-05-16  5:43 ` [PATCH 06/14] btrfs: separate errno from VM_FAULT_* values Christoph Hellwig
     [not found]   ` <20180516054348.15950-7-hch-jcswGhMUV9g@public.gmane.org>
2018-05-16 11:13     ` David Sterba
2018-05-16  5:43 ` [PATCH 07/14] ext4: " Christoph Hellwig
2018-05-16  5:43 ` [PATCH 08/14] ocfs2: " Christoph Hellwig
2018-05-16  5:43 ` [PATCH 09/14] ubifs: " Christoph Hellwig
2018-05-16  5:43 ` [PATCH 10/14] vgem: " Christoph Hellwig
2018-05-16  9:53   ` Daniel Vetter
2018-05-16 13:01     ` Christoph Hellwig
2018-05-16 13:13       ` Matthew Wilcox
2018-05-16  5:43 ` [PATCH 11/14] ttm: " Christoph Hellwig
2018-05-16  5:43 ` [PATCH 12/14] lustre: " Christoph Hellwig
2018-05-16  5:43 ` [PATCH 13/14] mm: move arch specific VM_FAULT_* flags to mm.h Christoph Hellwig
2018-05-16  5:43 ` [PATCH 14/14] mm: turn on vm_fault_t type checking Christoph Hellwig
2018-05-16 11:28   ` Matthew Wilcox
2018-05-16 13:03     ` Christoph Hellwig
2018-05-16 15:08   ` Darrick J. Wong
2018-05-16 17:34     ` Christoph Hellwig
2018-05-16 11:23 ` vm_fault_t conversion, for real Matthew Wilcox
2018-05-16 13:03   ` Christoph Hellwig
2018-05-16 13:22     ` Matthew Wilcox
2018-05-16 17:32       ` Christoph Hellwig

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20180516054348.15950-1-hch@lst.de \
    --to=hch@lst.de \
    --cc=ceph-devel@vger.kernel.org \
    --cc=devel@lists.orangefs.org \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=jrdr.linux@gmail.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-btrfs@vger.kernel.org \
    --cc=linux-ext4@vger.kernel.org \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=linux-mtd@lists.infradead.org \
    --cc=linux-s390@vger.kernel.org \
    --cc=lustre-devel@lists.lustre.org \
    --cc=ocfs2-devel@oss.oracle.com \
    --cc=willy@infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

CEPH-Devel Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/ceph-devel/0 ceph-devel/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 ceph-devel ceph-devel/ https://lore.kernel.org/ceph-devel \
		ceph-devel@vger.kernel.org
	public-inbox-index ceph-devel

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.ceph-devel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git