From: Matthew Bobrowski <mbobrowski@mbobrowski.org>
To: linux-ext4@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org, jack@suse.cz, tytso@mit.edu,
riteshh@linux.ibm.com
Subject: [PATCH 0/5] ext4: direct IO via iomap infrastructure
Date: Mon, 12 Aug 2019 22:52:19 +1000 [thread overview]
Message-ID: <cover.1565609891.git.mbobrowski@mbobrowski.org> (raw)
This patch series converts the ext4 direct IO code paths to make use of the
iomap infrastructure and removes the old buffer_head direct-io based
implementation. The result is that ext4 is converted to the newer framework
and that it may _possibly_ gain a performance boost for O_SYNC | O_DIRECT IO.
These changes have been tested using xfstests in both DAX and non-DAX modes
using various configurations i.e. 4k, dioread_nolock, dax.
Matthew Bobrowski (5):
ext4: introduce direct IO read code path using iomap infrastructure
ext4: move inode extension/truncate code out from ext4_iomap_end()
iomap: modify ->end_io() calling convention
ext4: introduce direct IO write code path using iomap infrastructure
ext4: clean up redundant buffer_head direct IO code
fs/ext4/ext4.h | 3 -
fs/ext4/extents.c | 8 +-
fs/ext4/file.c | 329 +++++++++++++++++++++++++++-------
fs/ext4/inode.c | 488 +++++---------------------------------------------
fs/iomap/direct-io.c | 9 +-
fs/xfs/xfs_file.c | 17 +-
include/linux/iomap.h | 4 +-
7 files changed, 322 insertions(+), 536 deletions(-)
--
2.16.4
--
Matthew Bobrowski
next reply other threads:[~2019-08-12 12:52 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-12 12:52 Matthew Bobrowski [this message]
2019-08-12 12:52 ` [PATCH 1/5] ext4: introduce direct IO read code path using iomap infrastructure Matthew Bobrowski
2019-08-12 17:18 ` Christoph Hellwig
2019-08-12 20:17 ` Matthew Wilcox
2019-08-13 10:45 ` Matthew Bobrowski
2019-08-12 12:52 ` [PATCH 2/5] ext4: move inode extension/truncate code out from ext4_iomap_end() Matthew Bobrowski
2019-08-12 17:18 ` Christoph Hellwig
2019-08-13 10:46 ` Matthew Bobrowski
2019-08-28 19:59 ` Jan Kara
2019-08-28 21:54 ` Matthew Bobrowski
2019-08-29 8:18 ` Jan Kara
2019-08-12 12:53 ` [PATCH 3/5] iomap: modify ->end_io() calling convention Matthew Bobrowski
2019-08-12 17:18 ` Christoph Hellwig
2019-08-13 10:43 ` Matthew Bobrowski
2019-08-12 12:53 ` [PATCH 4/5] ext4: introduce direct IO write code path using iomap infrastructure Matthew Bobrowski
2019-08-12 17:04 ` RITESH HARJANI
2019-08-13 12:58 ` Matthew Bobrowski
2019-08-13 14:35 ` Darrick J. Wong
2019-08-14 9:51 ` Matthew Bobrowski
2019-08-12 17:34 ` Christoph Hellwig
2019-08-13 10:45 ` Matthew Bobrowski
2019-08-28 20:26 ` Jan Kara
2019-08-28 22:32 ` Dave Chinner
2019-08-29 8:03 ` Jan Kara
2019-08-29 11:47 ` Matthew Bobrowski
2019-08-29 11:45 ` Matthew Bobrowski
2019-08-29 12:38 ` Jan Kara
2019-08-12 12:53 ` [PATCH 5/5] ext4: clean up redundant buffer_head direct IO code Matthew Bobrowski
2019-08-12 17:31 ` [PATCH 0/5] ext4: direct IO via iomap infrastructure RITESH HARJANI
2019-08-13 11:10 ` Matthew Bobrowski
2019-08-13 12:27 ` RITESH HARJANI
2019-08-14 9:48 ` Matthew Bobrowski
2019-08-14 11:58 ` RITESH HARJANI
2019-08-21 13:14 ` Matthew Bobrowski
2019-08-22 12:00 ` Matthew Bobrowski
2019-08-22 14:11 ` Ritesh Harjani
2019-08-24 3:18 ` Matthew Bobrowski
2019-08-24 3:55 ` Darrick J. Wong
2019-08-24 23:04 ` Christoph Hellwig
2019-08-27 9:52 ` Matthew Bobrowski
2019-08-28 12:05 ` Matthew Bobrowski
2019-08-28 14:27 ` Theodore Y. Ts'o
2019-08-28 18:02 ` Jan Kara
2019-08-29 6:36 ` Christoph Hellwig
2019-08-29 11:20 ` Matthew Bobrowski
2019-08-29 14:41 ` Christoph Hellwig
2019-08-23 13:43 ` [RFC 1/1] ext4: PoC implementation of option-1 Ritesh Harjani
2019-08-23 13:49 ` Ritesh Harjani
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