On Sun, Aug 17, 2025 at 12:30:15AM +0800, Xiao Liang wrote:
> When seq_nr wraps around, the next reorder job with seq 0 is hashed to
> the first CPU in padata_do_serial(). Correspondingly, need reset pd->cpu
> to the first one when pd->processed wraps around. Otherwise, if the
> number of used CPUs is not a power of 2, padata_find_next() will be
> checking a wrong list, hence deadlock.
>
> Fixes: 6fc4dbcf0276 ("padata: Replace delayed timer with immediate workqueue in padata_reorder")
> Signed-off-by: Xiao Liang <shaw.leon@xxxxxxxxx>
> ---
> kernel/padata.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
Patch applied. Thanks.
--
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
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