On Tue 29-09-15 12:47:51, Tejun Heo wrote:
> wakeup_dirtytime_writeback() walks and wakes up all wb's of all bdi's;
> unfortunately, it was always waking up bdi->wb instead of the wb being
> walked. Fix it.
Looks good. You can add:
Reviewed-by: Jan Kara <jack@xxxxxxxx>
Honza
>
> Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
> Fixes: 001fe6f617b1 ("writeback: make wakeup_dirtytime_writeback() handle multiple bdi_writeback's")
> ---
> fs/fs-writeback.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
> index 091a364..d0da306 100644
> --- a/fs/fs-writeback.c
> +++ b/fs/fs-writeback.c
> @@ -1897,8 +1897,8 @@ static void wakeup_dirtytime_writeback(struct work_struct *w)
> struct wb_iter iter;
>
> bdi_for_each_wb(wb, bdi, &iter, 0)
> - if (!list_empty(&bdi->wb.b_dirty_time))
> - wb_wakeup(&bdi->wb);
> + if (!list_empty(&wb->b_dirty_time))
> + wb_wakeup(wb);
> }
> rcu_read_unlock();
> schedule_delayed_work(&dirtytime_work, dirtytime_expire_interval * HZ);
> --
> 2.4.3
>
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--
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR
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