Re: [RFC][PATCH v3 30/33] timers: jbd2: Use timer_shutdown() before freeing timer

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On Fri 04-11-22 01:41:23, Steven Rostedt wrote:
> From: "Steven Rostedt (Google)" <rostedt@xxxxxxxxxxx>
> 
> Before a timer is freed, timer_shutdown() must be called. Note that it is
> assumed that the timer is not running while being freed, so only
> timer_shutdown() is used, and not timer_shutdown_sync().
> 
> Link: https://lore.kernel.org/all/20220407161745.7d6754b3@xxxxxxxxxxxxxxxxxx/
> 
> Cc: "Theodore Ts'o" <tytso@xxxxxxx>
> Cc: Jan Kara <jack@xxxxxxxx>
> Cc: linux-ext4@xxxxxxxxxxxxxxx
> Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>

Looks good to me. Feel free to add:

Reviewed-by: Jan Kara <jack@xxxxxxx>

								Honza

> ---
>  fs/jbd2/journal.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
> index 2696f43e7239..57d2445d8c8b 100644
> --- a/fs/jbd2/journal.c
> +++ b/fs/jbd2/journal.c
> @@ -2157,6 +2157,8 @@ int jbd2_journal_destroy(journal_t *journal)
>  	J_ASSERT(journal->j_checkpoint_transactions == NULL);
>  	spin_unlock(&journal->j_list_lock);
>  
> +	timer_shutdown(&journal->j_commit_timer);
> +
>  	/*
>  	 * OK, all checkpoint transactions have been checked, now check the
>  	 * write out io error flag and abort the journal if some buffer failed
> -- 
> 2.35.1
-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR



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