On 8/25/2025 8:53 PM, Julian Sun wrote:
> In commit 6a3afb6ac6df ("jbd2: increase the journal IO's priority"),
> the priority of IOs initiated by jbd2 has been raised, exempting them
> from WBT throttling.
> Checkpoint is also a crucial operation of jbd2. While no serious issues
> have been observed so far, it should still be reasonable to exempt
> checkpoint from WBT throttling.
>
> Signed-off-by: Julian Sun <sunjunchao@xxxxxxxxxxxxx>
Looks reasonable to me. Thanks for the patch!
Reviewed-by: Zhang Yi <yi.zhang@xxxxxxxxxx>
> ---
> fs/jbd2/checkpoint.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c
> index 38861ca04899..2d0719bf6d87 100644
> --- a/fs/jbd2/checkpoint.c
> +++ b/fs/jbd2/checkpoint.c
> @@ -131,7 +131,7 @@ __flush_batch(journal_t *journal, int *batch_count)
>
> blk_start_plug(&plug);
> for (i = 0; i < *batch_count; i++)
> - write_dirty_buffer(journal->j_chkpt_bhs[i], REQ_SYNC);
> + write_dirty_buffer(journal->j_chkpt_bhs[i], JBD2_JOURNAL_REQ_FLAGS);
> blk_finish_plug(&plug);
>
> for (i = 0; i < *batch_count; i++) {
