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From: Goldwyn Rodrigues <rgoldwyn@suse.de>
To: linux-btrfs@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Subject: [PATCH v2 00/15] btrfs dax support
Date: Tue, 26 Mar 2019 14:09:08 -0500	[thread overview]
Message-ID: <20190326190908.uz5rqakhr5er3r3z@merlin> (raw)
In-Reply-To: <20190326190301.32365-1-rgoldwyn@suse.de>

Sorry, messed up the subject the first time.

This patch set adds support for dax on the BTRFS filesystem.
In order to support for CoW for btrfs, there were changes which had to be
made to the dax handling. The important one is copying blocks into the
same dax device before using them.

I have some doubts: I have put them in patch headers of the individual
patches.

Git: https://github.com/goldwynr/linux/tree/btrfs-dax

Changes since V1:
- use iomap instead of redoing everything in btrfs
- support for mmap writeprotecting on snapshotting


 fs/btrfs/Makefile            |    1 
 fs/btrfs/ctree.h             |   32 +++++-
 fs/btrfs/dax.c               |  225 +++++++++++++++++++++++++++++++++++++++++--
 fs/btrfs/disk-io.c           |    4 
 fs/btrfs/file.c              |   34 +++++-
 fs/btrfs/inode.c             |  114 ++++++++++++++++-----
 fs/btrfs/ioctl.c             |   31 +++++
 fs/btrfs/send.c              |    4 
 fs/btrfs/super.c             |   26 ++++
 fs/dax.c                     |  164 ++++++++++++++++++++++++++++---
 fs/iomap.c                   |    9 -
 fs/ocfs2/file.c              |    2 
 fs/read_write.c              |    9 +
 fs/xfs/xfs_reflink.c         |    2 
 include/linux/dax.h          |   13 +-
 include/linux/fs.h           |    4 
 include/linux/iomap.h        |    9 +
 include/trace/events/btrfs.h |   56 ++++++++++
 18 files changed, 662 insertions(+), 77 deletions(-)

-- 
Goldwyn

  parent reply	other threads:[~2019-03-26 19:09 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20190326190301.32365-1-rgoldwyn@suse.de>
2019-03-26 19:02 ` [PATCH 01/15] btrfs: create a mount option for dax Goldwyn Rodrigues
2019-03-26 19:10   ` Matthew Wilcox
2019-03-27 11:00     ` Goldwyn Rodrigues
2019-03-27 12:00       ` Matthew Wilcox
2019-03-27 12:26         ` Goldwyn Rodrigues
2019-03-27 23:31         ` Goldwyn Rodrigues
2019-03-27 17:38     ` Adam Borowski
2019-03-28 14:49   ` David Sterba
2019-03-28 17:28   ` David Sterba
2019-03-28 17:57     ` Darrick J. Wong
2019-04-01 20:43     ` Goldwyn Rodrigues
2019-03-26 19:02 ` [PATCH 02/15] btrfs: Carve out btrfs_get_extent_map_write() out of btrfs_get_blocks_write() Goldwyn Rodrigues
2019-03-26 19:02 ` [PATCH 03/15] btrfs: basic dax read Goldwyn Rodrigues
2019-03-26 19:02 ` [PATCH 04/15] dax: Introduce IOMAP_F_COW for copy-on-write Goldwyn Rodrigues
2019-03-27 17:54   ` Darrick J. Wong
2019-03-27 18:58     ` Goldwyn Rodrigues
2019-03-28 14:45       ` Darrick J. Wong
2019-04-01  4:38   ` Dave Chinner
2019-04-01 21:41     ` Goldwyn Rodrigues
2019-04-01 23:06       ` Dave Chinner
2019-04-03  1:56         ` Goldwyn Rodrigues
2019-04-03  3:20           ` Dave Chinner
2019-04-07  7:26     ` Christoph Hellwig
2019-03-26 19:02 ` [PATCH 05/15] btrfs: return whether extent is nocow or not Goldwyn Rodrigues
2019-03-31 18:42   ` Nikolay Borisov
2019-03-26 19:02 ` [PATCH 06/15] btrfs: Rename __endio_write_update_ordered() to btrfs_update_ordered_extent() Goldwyn Rodrigues
2019-03-26 19:02 ` [PATCH 07/15] btrfs: add dax write support Goldwyn Rodrigues
2019-03-28 14:53   ` Darrick J. Wong
2019-04-01 20:39     ` Goldwyn Rodrigues
2019-03-26 19:02 ` [PATCH 08/15] dax: add dax_iomap_cow to copy a mmap page before writing Goldwyn Rodrigues
2019-03-28 15:41   ` Darrick J. Wong
2019-03-26 19:02 ` [PATCH 09/15] btrfs: add dax mmap support Goldwyn Rodrigues
2019-03-28 15:45   ` Darrick J. Wong
2019-03-26 19:02 ` [PATCH 10/15] btrfs: Add dax specific address_space_operations Goldwyn Rodrigues
2019-03-26 19:02 ` [PATCH 11/15] fs: dedup file range to use a compare function Goldwyn Rodrigues
2019-03-28 17:04   ` Darrick J. Wong
2019-04-01 20:36     ` Goldwyn Rodrigues
2019-03-26 19:02 ` [PATCH 12/15] btrfs: trace functions for btrfs_iomap_begin/end Goldwyn Rodrigues
2019-03-26 19:02 ` [PATCH 13/15] btrfs: handle dax page zeroing Goldwyn Rodrigues
2019-03-26 19:03 ` [PATCH 14/15] btrfs: Disable dax-based defrag and send Goldwyn Rodrigues
2019-03-26 19:03 ` [PATCH 15/15] btrfs: Writeprotect mmap pages on snapshot Goldwyn Rodrigues
2019-03-28 15:48   ` Darrick J. Wong
2019-03-26 19:09 ` Goldwyn Rodrigues [this message]
2019-03-27 20:14   ` [PATCH v2 00/15] btrfs dax support Adam Borowski
2019-03-27 23:26     ` Goldwyn Rodrigues
2019-03-28 10:24       ` [PATCH] btrfs: allow MAP_SYNC mmap Adam Borowski
2019-03-28 10:42         ` Adam Borowski
2019-04-01 20:08         ` Goldwyn Rodrigues

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