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Date:   Mon, 5 Sep 2022 04:23:24 -0400
From:   "Theodore Ts'o" <>
To:     Zhang Yi <>
Subject: Re: [PATCH v2 06/14] jbd2: replace ll_rw_block()

On Thu, Sep 01, 2022 at 09:34:57PM +0800, Zhang Yi wrote:
> ll_rw_block() is not safe for the sync read path because it cannot
> guarantee that submitting read IO if the buffer has been locked. We
> could get false positive EIO after wait_on_buffer() if the buffer has
> been locked by others. So stop using ll_rw_block() in
> journal_get_superblock(). We also switch to new bh_readahead_batch()
> for the buffer array readahead path.
> Signed-off-by: Zhang Yi <>

Thanks, looks good.

Reviewed-by: Theodore Ts'o <>

					- Ted

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