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From: Guoqing Jiang <guoqing.jiang@cloud.ionos.com>
To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: hch@infradead.org, david@fromorbit.com, willy@infradead.org,
	Guoqing Jiang <guoqing.jiang@cloud.ionos.com>
Subject: [RFC PATCH V2 0/9] Introduce attach/clear_page_private to cleanup code
Date: Thu, 30 Apr 2020 23:44:41 +0200
Message-ID: <20200430214450.10662-1-guoqing.jiang@cloud.ionos.com> (raw)

Hi,

Based on the previous thread [1], this patchset introduces attach_page_private
and clear_page_private to replace attach_page_buffers and __clear_page_buffers.
Thanks a lot for the constructive suggestions and comments from Christoph,
Matthew and Dave.

And sorry for cross post to different lists since it modifies different subsystems.

RFC -> RFC V2:

1. rename the new functions and add comments for them.
2. change the return type of attach_page_private.
3. call attach_page_private(newpage, clear_page_private(page)) to cleanup code further.
4. avoid potential use-after-free in orangefs.

[1]. https://lore.kernel.org/linux-fsdevel/20200420221424.GH5820@bombadil.infradead.org/

Thanks,
Guoqing

Guoqing Jiang (9):
  include/linux/pagemap.h: introduce attach/clear_page_private
  md: remove __clear_page_buffers and use attach/clear_page_private
  btrfs: use attach/clear_page_private
  fs/buffer.c: use attach/clear_page_private
  f2fs: use attach/clear_page_private
  iomap: use attach/clear_page_private
  ntfs: replace attach_page_buffers with attach_page_private
  orangefs: use attach/clear_page_private
  buffer_head.h: remove attach_page_buffers

 drivers/md/md-bitmap.c      | 12 ++----------
 fs/btrfs/disk-io.c          |  4 +---
 fs/btrfs/extent_io.c        | 21 ++++++---------------
 fs/btrfs/inode.c            | 23 +++++------------------
 fs/buffer.c                 | 16 ++++------------
 fs/f2fs/f2fs.h              | 11 ++---------
 fs/iomap/buffered-io.c      | 19 ++++---------------
 fs/ntfs/aops.c              |  2 +-
 fs/ntfs/mft.c               |  2 +-
 fs/orangefs/inode.c         | 32 ++++++--------------------------
 include/linux/buffer_head.h |  8 --------
 include/linux/pagemap.h     | 35 +++++++++++++++++++++++++++++++++++
 12 files changed, 67 insertions(+), 118 deletions(-)

-- 
2.17.1


             reply index

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-30 21:44 Guoqing Jiang [this message]
2020-04-30 21:44 ` [RFC PATCH V2 1/9] include/linux/pagemap.h: introduce attach/clear_page_private Guoqing Jiang
2020-04-30 22:10   ` Andreas Grünbacher
2020-05-01  6:38     ` Guoqing Jiang
2020-04-30 22:13   ` Matthew Wilcox
2020-05-01  1:42     ` Al Viro
2020-05-01  1:49       ` Al Viro
2020-05-01  6:41         ` Guoqing Jiang
2020-05-01  6:39     ` Guoqing Jiang
2020-04-30 21:44 ` [RFC PATCH V2 2/9] md: remove __clear_page_buffers and use attach/clear_page_private Guoqing Jiang
2020-04-30 21:44 ` [RFC PATCH V2 3/9] btrfs: " Guoqing Jiang
2020-04-30 21:44 ` [RFC PATCH V2 4/9] fs/buffer.c: " Guoqing Jiang
2020-04-30 21:44 ` [RFC PATCH V2 5/9] f2fs: " Guoqing Jiang
2020-04-30 21:44 ` [RFC PATCH V2 6/9] iomap: " Guoqing Jiang
2020-04-30 21:44 ` [RFC PATCH V2 7/9] ntfs: replace attach_page_buffers with attach_page_private Guoqing Jiang
2020-04-30 21:44 ` [RFC PATCH V2 8/9] orangefs: use attach/clear_page_private Guoqing Jiang
2020-04-30 21:44 ` [RFC PATCH V2 9/9] buffer_head.h: remove attach_page_buffers Guoqing Jiang
2020-05-01 22:16 ` [RFC PATCH V2 0/9] Introduce attach/clear_page_private to cleanup code Matthew Wilcox
2020-05-01 22:42   ` Guoqing Jiang
2020-05-02  0:41     ` Matthew Wilcox
2020-05-02  8:56       ` Guoqing Jiang

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