From: sashiko-bot@kernel.org
To: "Zhang Yi" <yi.zhang@huaweicloud.com>
Cc: linux-ext4@vger.kernel.org, tytso@mit.edu
Subject: Re: [PATCH v7 15/31] ext4: implement writeback path using iomap
Date: Fri, 09 Oct 2026 11:13:31 +0000 [thread overview]
Message-ID: <sashiko-outbox-165333@kernel.org> (raw)
In-Reply-To: <20261009103033.2920530-16-yi.zhang@huaweicloud.com>
> From: Zhang Yi <yi.zhang@huawei.com>
>
> Add the iomap writeback path for ext4 buffered I/O. This introduces:
>
> - ext4_iomap_writepages(): the main writeback entry point.
> - ext4_writeback_ops: a new iomap_writeback_ops instance to handle
> block mapping and I/O submission.
> - A new end I/O work handler ext4_iomap_finish_ioend() is added for
> converting unwritten extents, updating file size, and handling
> DATA_ERR_ABORT after I/O completion.
>
> Core implementation details:
>
> - ->writeback_range() callback
> Calls ext4_iomap_map_writeback_range() to map and allocate blocks
> [ ... ]
> be cleared explicitly to avoid double deferral. In the future, all
> private defer work should be moved to the generic bio complete in
> task framework.
>
> Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261009103033.2920530-1-yi.zhang@huaweicloud.com?part=15
next prev parent reply other threads:[~2026-10-09 11:13 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-09 10:30 [PATCH v7 00/31] ext4: use iomap for regular file's buffered I/O path Zhang Yi
2026-10-09 10:30 ` [PATCH v7 01/31] ext4: simplify size updating in ext4_setattr() Zhang Yi
2026-10-09 10:51 ` sashiko-bot
2026-10-09 10:30 ` [PATCH v7 02/31] ext4: factor out ext4_truncate_[up|down]() Zhang Yi
2026-10-09 10:54 ` sashiko-bot
2026-10-09 10:30 ` [PATCH v7 03/31] ext4: set EXT4_MAP_NEW flag for delayed allocated blocks Zhang Yi
2026-10-09 10:50 ` sashiko-bot
2026-10-09 10:30 ` [PATCH v7 04/31] ext4: recheck extent status tree before block allocation Zhang Yi
2026-10-09 10:54 ` sashiko-bot
2026-10-09 10:30 ` [PATCH v7 05/31] ext4: fix orig_mlen initialization in ext4_map_blocks() Zhang Yi
2026-10-09 10:53 ` sashiko-bot
2026-10-09 10:30 ` [PATCH v7 06/31] ext4: allow ext4_map_blocks() to start its own transaction handle Zhang Yi
2026-10-09 10:58 ` sashiko-bot
2026-10-09 10:30 ` [PATCH v7 07/31] ext4: avoid unnecessary transaction in ext4_map_blocks() for unwritten extents Zhang Yi
2026-10-09 10:53 ` sashiko-bot
2026-10-09 10:30 ` [PATCH v7 08/31] ext4: skip block allocation for holes in the data submission path Zhang Yi
2026-10-09 10:58 ` sashiko-bot
2026-10-10 0:55 ` Zhang Yi
2026-10-09 10:30 ` [PATCH v7 09/31] ext4: add iomap address space operations for buffered I/O Zhang Yi
2026-10-09 10:54 ` sashiko-bot
2026-10-09 10:30 ` [PATCH v7 10/31] ext4: implement buffered read path using iomap Zhang Yi
2026-10-09 11:07 ` sashiko-bot
2026-10-09 10:30 ` [PATCH v7 11/31] ext4: pass out extent seq counter when mapping da blocks Zhang Yi
2026-10-09 10:55 ` sashiko-bot
2026-10-09 10:30 ` [PATCH v7 12/31] ext4: do not use data=ordered mode for inodes using buffered iomap path Zhang Yi
2026-10-09 11:01 ` sashiko-bot
2026-10-09 10:30 ` [PATCH v7 13/31] ext4: implement buffered write path using iomap Zhang Yi
2026-10-09 11:03 ` sashiko-bot
2026-10-09 10:30 ` [PATCH v7 14/31] ext4: rework handle credit accounting for unwritten extent conversion Zhang Yi
2026-10-09 11:20 ` sashiko-bot
2026-10-10 2:33 ` Zhang Yi
2026-10-09 10:30 ` [PATCH v7 15/31] ext4: implement writeback path using iomap Zhang Yi
2026-10-09 11:13 ` sashiko-bot [this message]
2026-10-09 10:30 ` [PATCH v7 16/31] ext4: implement mmap " Zhang Yi
2026-10-09 11:10 ` sashiko-bot
2026-10-09 10:30 ` [PATCH v7 17/31] ext4: implement partial block zero range " Zhang Yi
2026-10-09 11:09 ` sashiko-bot
2026-10-09 10:30 ` [PATCH v7 18/31] ext4: drain writeback before removing extents on the iomap path Zhang Yi
2026-10-09 11:06 ` sashiko-bot
2026-10-09 10:30 ` [PATCH v7 19/31] ext4: add block mapping tracepoints for iomap buffered I/O path Zhang Yi
2026-10-09 11:03 ` sashiko-bot
2026-10-10 3:04 ` Zhang Yi
2026-10-09 10:30 ` [PATCH v7 20/31] ext4: disable online defrag when inode using " Zhang Yi
2026-10-09 11:00 ` sashiko-bot
2026-10-09 10:30 ` [PATCH v7 21/31] ext4: add EXT4_STATE_DISKSIZE_GROW_PENDING state bit and helpers Zhang Yi
2026-10-09 11:04 ` sashiko-bot
2026-10-09 10:30 ` [PATCH v7 22/31] ext4: submit and wait for pending disksize-grow I/O on writeback Zhang Yi
2026-10-09 11:18 ` sashiko-bot
2026-10-10 3:11 ` Zhang Yi
2026-10-09 10:30 ` [PATCH v7 23/31] ext4: advance i_disksize to i_size upon disksize-grow I/O completion Zhang Yi
2026-10-09 11:19 ` sashiko-bot
2026-10-09 10:30 ` [PATCH v7 24/31] ext4: defer i_disksize update while DISKSIZE_GROW_PENDING is set Zhang Yi
2026-10-09 11:21 ` sashiko-bot
2026-10-10 3:35 ` Zhang Yi
2026-10-09 10:30 ` [PATCH v7 25/31] ext4: submit and wait for disksize-grow I/O in fallocate paths Zhang Yi
2026-10-09 11:25 ` sashiko-bot
2026-10-09 10:30 ` [PATCH v7 26/31] ext4: clear DISKSIZE_GROW_PENDING on truncate or error Zhang Yi
2026-10-09 11:16 ` sashiko-bot
2026-10-10 4:59 ` Zhang Yi
2026-10-09 10:30 ` [PATCH v7 27/31] ext4: set DISKSIZE_GROW_PENDING after zeroing unaligned EOF block Zhang Yi
2026-10-09 11:21 ` sashiko-bot
2026-10-10 7:21 ` Zhang Yi
2026-10-10 9:00 ` Ojaswin Mujoo
2026-10-10 9:50 ` Zhang Yi
2026-10-10 13:49 ` Ojaswin Mujoo
2026-10-10 15:54 ` Zhang Yi
2026-10-11 9:30 ` Ojaswin Mujoo
2026-10-09 10:30 ` [PATCH v7 28/31] ext4: add tracepoints for DISKSIZE_GROW_PENDING set, clear, and wait Zhang Yi
2026-10-09 11:13 ` sashiko-bot
2026-10-09 10:38 ` [PATCH v7 29/31] ext4: add tracepoints for EOF block zeroing and disksize-grow I/O Zhang Yi
2026-10-09 11:16 ` sashiko-bot
2026-10-09 10:38 ` [PATCH v7 30/31] ext4: partially enable iomap for the buffered I/O path of regular files Zhang Yi
2026-10-09 11:33 ` sashiko-bot
2026-10-10 8:09 ` Zhang Yi
2026-10-09 10:38 ` [PATCH v7 31/31] ext4: introduce a mount option for iomap buffered I/O path Zhang Yi
2026-10-09 11:17 ` sashiko-bot
2026-10-09 17:54 ` [syzbot ci] Re: ext4: use iomap for regular file's " syzbot ci
2026-10-10 8:44 ` Zhang Yi
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