linux-kernel - Re: [PATCH] jbd2: Fix assertion 'jh->b_frozen_data == NULL' failure when journal aborted

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Message-Id: <165849767595.303416.7829836253620190185.b4-ty@mit.edu>
Date:   Fri, 22 Jul 2022 09:58:13 -0400
From:   "Theodore Ts'o" <tytso@....edu>
To:     chengzhihao1@...wei.com, lczerner@...hat.com,
        ritesh.list@...il.com, akpm@...l.org, shaggy@...tin.ibm.com,
        jack@...e.com
Cc:     "Theodore Ts'o" <tytso@....edu>, yukuai3@...wei.com,
        linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] jbd2: Fix assertion 'jh->b_frozen_data == NULL' failure when journal aborted

On Fri, 15 Jul 2022 20:51:52 +0800, Zhihao Cheng wrote:
> Following process will fail assertion 'jh->b_frozen_data == NULL' in
> jbd2_journal_dirty_metadata():
> 
>                    jbd2_journal_commit_transaction
> unlink(dir/a)
>  jh->b_transaction = trans1
>  jh->b_jlist = BJ_Metadata
>                     journal->j_running_transaction = NULL
>                     trans1->t_state = T_COMMIT
> unlink(dir/b)
>  handle->h_trans = trans2
>  do_get_write_access
>   jh->b_modified = 0
>   jh->b_frozen_data = frozen_buffer
>   jh->b_next_transaction = trans2
>  jbd2_journal_dirty_metadata
>   is_handle_aborted
>    is_journal_aborted // return false
> 
> [...]

Applied, thanks!

[1/1] jbd2: Fix assertion 'jh->b_frozen_data == NULL' failure when journal aborted
      commit: 4b18734448a3ee7100c5936a7fc0f9b1f2567e07

Best regards,
-- 
Theodore Ts'o <tytso@....edu>