Re: [PATCH 3/5] u64_stats: Introduce IRQs disabled helpers

From: Frederic Weisbecker
Date: Sun Sep 18 2016 - 09:39:16 EST


On Fri, Sep 02, 2016 at 04:35:54PM +0200, Paolo Bonzini wrote:
>
>
> On 02/09/2016 16:03, Frederic Weisbecker wrote:
> > static inline unsigned int u64_stats_fetch_begin(const struct u64_stats_sync *syncp)
> > {
> > -#if BITS_PER_LONG==32 && defined(CONFIG_SMP)
> > - return read_seqcount_begin(&syncp->seq);
> > -#else
> > -#if BITS_PER_LONG==32
> > +#if BITS_PER_LONG==32 && !defined(CONFIG_SMP)
> > preempt_disable();
> > +#else
>
> This should be #endif, or this side ends without a "return" statement.

Good catch!

Thanks Paolo!