Re: [PATCH 1/7] jbd2: correctly compare tids with tid_geq function in jbd2_fc_begin_commit

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On Tue 30-07-24 19:33:29, Kemeng Shi wrote:
> Use tid_geq to compare tids to work over sequence number wraps.
> 
> Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>
> ---
>  fs/jbd2/journal.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Indeed, Luis seems to have missed this when fixing these bugs recently.
Feel free to add:

Reviewed-by: Jan Kara <jack@xxxxxxx>

								Honza

> 
> diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
> index 1ebf2393bfb7..da5a56d700f1 100644
> --- a/fs/jbd2/journal.c
> +++ b/fs/jbd2/journal.c
> @@ -710,7 +710,7 @@ int jbd2_fc_begin_commit(journal_t *journal, tid_t tid)
>  		return -EINVAL;
>  
>  	write_lock(&journal->j_state_lock);
> -	if (tid <= journal->j_commit_sequence) {
> +	if (tid_geq(journal->j_commit_sequence, tid)) {
>  		write_unlock(&journal->j_state_lock);
>  		return -EALREADY;
>  	}
> -- 
> 2.30.0
> 
-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR




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