Re: [PATCH v2] locking/lockdep: skip irq save/restore in hardirq context in lock_release()

[Deepanshu Kartikey]

On Tue, Jun 30, 2026 at 3:20 PM Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
>
> On Tue, Jun 30, 2026 at 05:06:50AM +0530, Deepanshu Kartikey wrote:
> > lock_release() performs a raw_local_irq_save/restore dance around its
> > validation work. While safe in process and softirq context, this is
> > dangerous in hardirq context where IRQs must remain disabled for the
> > entire duration of the handler.
> >
> > When lock_release() calls raw_local_irq_restore() inside a hardirq
> > handler, it briefly re-enables IRQs,
>
> It does not.

I am travelling nowadays. will check once i am back

Thanks