On Fri, Apr 22, 2022 at 06:02:12PM +0800, Pingfan Liu wrote:
> As demonstrated by commit 74bdf7815dfb ("genirq: Speedup show_interrupts()"),
> irq_desc can be accessed safely in RCU read section.
>
> Hence here resorting to rcu read lock to get rid of irq_lock_sparse().
>
> Signed-off-by: Pingfan Liu <kernelfans@xxxxxxxxx>
> Cc: Heiko Carstens <hca@xxxxxxxxxxxxx>
> Cc: Vasily Gorbik <gor@xxxxxxxxxxxxx>
> Cc: Alexander Gordeev <agordeev@xxxxxxxxxxxxx>
> Cc: Christian Borntraeger <borntraeger@xxxxxxxxxxxxx>
> Cc: Sven Schnelle <svens@xxxxxxxxxxxxx>
> Cc: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> To: linux-s390@xxxxxxxxxxxxxxx
>
> ---
> arch/s390/kernel/irq.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
Applied, thanks!
