From: sashiko-bot@kernel.org
To: "Ojaswin Mujoo" <ojaswin@linux.ibm.com>
Cc: linux-ext4@vger.kernel.org, tytso@mit.edu
Subject: Re: [PATCH 7/8] ext4: don't zeroout if we have inflight unwritten IOs in buffered iomap path
Date: Mon, 02 Nov 2026 18:38:30 +0000 [thread overview]
Message-ID: <sashiko-outbox-193954@kernel.org> (raw)
In-Reply-To: <20261102-ext4-endio-zero-bug-v1-7-266d2bb9e6dc@linux.ibm.com>
> The i_conv_pending_ios counter tracks the number of unwritten IOs that
> are currently undergoing endio conversion, and is used to prevent
> ext4_can_zeroout() from zeroing out unwritten extents that have valid
> data pending conversion.
>
> Enable the tracking for the buffered iomap writeback path by incrementing
> i_conv_pending_ios once per submitted unwritten ioend in
> ext4_iomap_writeback_submit() and decrement it after extent conversion.
>
> Fixes: 8c4f6e337634 ("ext4: introduce a mount option for iomap buffered I/O path")
> Signed-off-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261102-ext4-endio-zero-bug-v1-0-266d2bb9e6dc@linux.ibm.com?part=7
next prev parent reply other threads:[~2026-11-02 18:38 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-02 18:26 [PATCH 0/8] ext4: fix endio zeroout corruption by tracking to-be-converted unwritten IOs Ojaswin Mujoo
2026-11-02 18:26 ` [PATCH 1/8] ext4: add extra_flags param to ext4_convert_unwritten_extents() Ojaswin Mujoo
2026-11-02 18:30 ` sashiko-bot
2026-11-02 18:26 ` [PATCH 2/8] ext4: fix endio zeroout corruption by tracking unwritten to-be-converted IOs Ojaswin Mujoo
2026-11-02 18:44 ` sashiko-bot
2026-11-02 18:26 ` [PATCH 3/8] ext4: add tracing for i_conv_pending_ios tracking Ojaswin Mujoo
2026-11-02 18:30 ` sashiko-bot
2026-11-02 18:26 ` [PATCH 4/8] ext4: don't zeroout if we have inflight unwritten IOs in non buffered-iomap path Ojaswin Mujoo
2026-11-02 18:38 ` sashiko-bot
2026-11-02 18:26 ` [PATCH 5/8] ext4: don't zeroout if we have inflight direct IOs Ojaswin Mujoo
2026-11-02 18:47 ` sashiko-bot
2026-11-02 18:26 ` [PATCH 6/8] ext4: make sure zero range WRITE_ZEROES uses NO_CONV_ACC flag Ojaswin Mujoo
2026-11-02 18:47 ` sashiko-bot
2026-11-02 18:26 ` [PATCH 7/8] ext4: don't zeroout if we have inflight unwritten IOs in buffered iomap path Ojaswin Mujoo
2026-11-02 18:38 ` sashiko-bot [this message]
2026-11-02 18:26 ` [PATCH 8/8] ext4: optimize inflight dio tracking for zeroout Ojaswin Mujoo
2026-11-02 18:43 ` sashiko-bot
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