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Message-ID: <c7182d12-4b57-4133-9412-7587a98b86bd@kernel.org>
Date: Mon, 1 Sep 2025 15:30:22 +0900
From: Damien Le Moal <dlemoal@...nel.org>
To: Yu Kuai <yukuai1@...weicloud.com>, hch@...radead.org, colyli@...nel.org,
hare@...e.de, tieren@...as.com, axboe@...nel.dk, tj@...nel.org,
josef@...icpanda.com, song@...nel.org, kmo@...erainc.com, satyat@...gle.com,
ebiggers@...gle.com, neil@...wn.name, akpm@...ux-foundation.org
Cc: linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
cgroups@...r.kernel.org, linux-raid@...r.kernel.org, yukuai3@...wei.com,
yi.zhang@...wei.com, yangerkun@...wei.com, johnny.chenyi@...wei.com
Subject: Re: [PATCH RFC v3 03/15] md: fix mssing blktrace bio split events
On 9/1/25 12:32 PM, Yu Kuai wrote:
> From: Yu Kuai <yukuai3@...wei.com>
>
> If bio is split by internal chunksize of badblocks, the corresponding
badblocks ? Unclear.
> trace_block_split() is missing, causing blktrace can't catch the split
> events and make it hader to analyze IO behavior.
maybe:
trace_block_split() is missing, resulting in blktrace inability to catch BIO
split events and making it harder to analyze the BIO sequence.
would be better.
>
> Fixes: 4b1faf931650 ("block: Kill bio_pair_split()")
Missing Cc: stable@...r.kernel.org
> Signed-off-by: Yu Kuai <yukuai3@...wei.com>
With that,
Reviewed-by: Damien Le Moal <dlemoal@...nel.org>
(maybe drop the RFC on this patch series ? Sending a review tag for RFC patches
is odd...)
--
Damien Le Moal
Western Digital Research
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