From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>,
Christoph Hellwig <hch@infradead.org>,
Peter Zijlstra <peterz@infradead.org>
Subject: Re: [patch V5 3/3] smp: Make softirq handling RT safe in flush_smp_call_function_queue()
Date: Wed, 20 Apr 2022 17:56:49 +0200 [thread overview]
Message-ID: <YmAtQZHSbcqbwGj4@linutronix.de> (raw)
In-Reply-To: <20220413133024.356509586@linutronix.de>
On 2022-04-13 15:31:05 [+0200], Thomas Gleixner wrote:
…
> +#ifdef CONFIG_PREEMPT_RT
> +extern void do_softirq_post_smp_call_flush(unsigned int was_pending);
> +#else
> +static inline void do_softirq_post_smp_call_flush(unsigned int unused)
> +{
> + do_softirq();
> +}
> +#endif
> +
…
> +void softirq_post_smp_call_flush(unsigned int was_pending)
> +{
> + if (WARN_ON_ONCE(was_pending != local_softirq_pending()))
> + invoke_softirq();
> +}
> +
> #else /* CONFIG_PREEMPT_RT */
fold, please.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
kernel/softirq.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 1682586a69139..5b36ebe5e20de 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -301,7 +301,7 @@ static inline void invoke_softirq(void)
* get raised which haven't been raised before the flush, warn so it can be
* investigated.
*/
-void softirq_post_smp_call_flush(unsigned int was_pending)
+void do_softirq_post_smp_call_flush(unsigned int was_pending)
{
if (WARN_ON_ONCE(was_pending != local_softirq_pending()))
invoke_softirq();
Sebastian
next prev parent reply other threads:[~2022-04-20 15:57 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-13 13:31 [patch V5 0/3] smp: Make softirq handling RT friendly Thomas Gleixner
2022-04-13 13:31 ` [patch V5 1/3] sched: Fix missing prototype warnings Thomas Gleixner
2022-05-01 8:05 ` [tip: sched/core] " tip-bot2 for Thomas Gleixner
2022-04-13 13:31 ` [patch V5 2/3] smp: Rename flush_smp_call_function_from_idle() Thomas Gleixner
2022-05-01 8:05 ` [tip: sched/core] " tip-bot2 for Thomas Gleixner
2022-04-13 13:31 ` [patch V5 3/3] smp: Make softirq handling RT safe in flush_smp_call_function_queue() Thomas Gleixner
2022-04-20 15:56 ` Sebastian Andrzej Siewior [this message]
2022-04-25 12:55 ` [patch V5 0/3] smp: Make softirq handling RT friendly Peter Zijlstra
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=YmAtQZHSbcqbwGj4@linutronix.de \
--to=bigeasy@linutronix.de \
--cc=hch@infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=peterz@infradead.org \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox