linux-ext4 - Re: [PATCH v2] jbd2: avoid transaction reuse after reformatting

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Message-ID: <20201006103326.GA6984@quack2.suse.cz>
Date:   Tue, 6 Oct 2020 12:33:26 +0200
From:   Jan Kara <jack@...e.cz>
To:     常凤楠 <changfengnan@...com>
Cc:     tytso <tytso@....edu>, jack <jack@...e.com>,
        adilger <adilger@...ger.ca>,
        "darrick.wong" <darrick.wong@...cle.com>,
        Fengnan Chang <changfengnan@...vision.com>,
        linux-ext4 <linux-ext4@...r.kernel.org>
Subject: Re: [PATCH v2] jbd2: avoid transaction reuse after reformatting

On Sat 03-10-20 14:30:24, 常凤楠 wrote:
> When format ext4 with lazy_journal_init=1, the previous transaction is still on disk,
> it is possible that the previous transaction will be used again during jbd2 recovery.
> Because the seed is changed, the CRC check will fail.
> 
> Signed-off-by: Fengnan Chang <changfengnan@...vision.com&gt;

I've submitted v3 of the patch [1] which should not be mangled as this one...

								Honza

[1] https://lore.kernel.org/linux-ext4/20201006103154.7130-1-jack@suse.cz

-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR