[v4,0/15] CoW support for iomap

Message ID	20190905150650.21089-1-rgoldwyn@suse.de (mailing list archive)
Headers	show Return-Path: <SRS0=M3o5=XA=vger.kernel.org=linux-btrfs-owner@kernel.org> From: Goldwyn Rodrigues <rgoldwyn@suse.de> To: linux-fsdevel@vger.kernel.org Cc: linux-btrfs@vger.kernel.org, darrick.wong@oracle.com, hch@lst.de, linux-xfs@vger.kernel.org Subject: [PATCH v4 0/15] CoW support for iomap Date: Thu, 5 Sep 2019 10:06:35 -0500 Message-Id: <20190905150650.21089-1-rgoldwyn@suse.de> Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk
Series	CoW support for iomap \| expand [v4,0/15] CoW support for iomap [01/15] iomap: Use a srcmap for a read-modify-write I/O [02/15] iomap: Read page from srcmap if IOMAP_F_COW is set [03/15] btrfs: Eliminate PagePrivate for btrfs data pages [04/15] btrfs: Add a simple buffered iomap write [05/15] btrfs: Add CoW in iomap based writes [06/15] btrfs: remove buffered write code made unnecessary [07/15] fs: Export generic_file_buffered_read() [08/15] btrfs: basic direct read operation [09/15] btrfs: Carve out btrfs_get_extent_map_write() out of btrfs_get_blocks_write() [10/15] btrfs: Rename __endio_write_update_ordered() to btrfs_update_ordered_extent() [11/15] iomap: use a function pointer for dio submits [12/15] btrfs: Use iomap_dio_rw for performing direct I/O writes [13/15] btrfs: Remove btrfs_dio_data and __btrfs_direct_write [14/15] btrfs: update inode size during bio completion [15/15] xfs: Use the new iomap infrastructure for CoW

Message ID

20190905150650.21089-1-rgoldwyn@suse.de (mailing list archive)

Headers

From: Goldwyn Rodrigues <rgoldwyn@suse.de>
To: linux-fsdevel@vger.kernel.org
Cc: linux-btrfs@vger.kernel.org, darrick.wong@oracle.com, hch@lst.de,
        linux-xfs@vger.kernel.org
Subject: [PATCH v4 0/15] CoW support for iomap
Date: Thu,  5 Sep 2019 10:06:35 -0500
Message-Id: <20190905150650.21089-1-rgoldwyn@suse.de>
Sender: linux-btrfs-owner@vger.kernel.org
Precedence: bulk

Series

CoW support for iomap | expand

Message

Goldwyn Rodrigues Sept. 5, 2019, 3:06 p.m. UTC

Previously called btrfs iomap.

This is an effort to use iomap for btrfs. This would keep most
responsibility of page handling during writes in iomap code, hence
code reduction. For CoW support, changes are needed in iomap code
to make sure we perform a copy before the write.
This is in line with the discussion we had during adding dax support in
btrfs.

I din't mean to change the series topic, but I am expanding into
XFS. However, I have not thoroughly tested XFS changes yet. I am
sending this for the deadline set by Darrick.

This patchset is based on DIO changes sent by Christoph,
based on patches by Matthew Bobrowski.

[1] https://github.com/goldwynr/linux/tree/btrfs-iomap