From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: linux-trace-kernel@vger.kernel.org, linux-kernel@vger.kernel.org,
Peter Zijlstra <peterz@infradead.org>,
tglx@linutronix.de, mingo@kernel.org, juri.lelli@redhat.com,
vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
bsegall@google.com, mgorman@suse.de, vschneid@redhat.com,
ankur.a.arora@oracle.com, efault@gmx.de,
Masami Hiramatsu <mhiramat@kernel.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Subject: Re: [PATCH v2 1/3] tracing: Replace TRACE_FLAG_IRQS_NOSUPPORT with its config option.
Date: Tue, 22 Oct 2024 12:29:06 +0200 [thread overview]
Message-ID: <20241022102906.KNgo1A2_@linutronix.de> (raw)
In-Reply-To: <20241022061959.31775f7a@rorschach.local.home>
On 2024-10-22 06:19:59 [-0400], Steven Rostedt wrote:
> On Tue, 22 Oct 2024 11:52:41 +0200
> Sebastian Andrzej Siewior <bigeasy@linutronix.de> wrote:
>
> > >
> > > Please just remove NOSUPPORT and do not touch NEED_RESCHED.
> >
> > Then I put the lazy bit where we have not NOSUPPORT.
>
> I'm afraid user space will confuse this with the NOSUPPORT.
So? We don't ignore this for now and recycle that bit? If I got it
right, only PPC32 was using that NOSUPPORT bit.
What are the options given that it has to be an 8 bit field?
> -- Steve
Sebastian
next prev parent reply other threads:[~2024-10-22 10:29 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-21 15:08 [PATCH v2 0/3] Lazy preemption leftovers Sebastian Andrzej Siewior
2024-10-21 15:08 ` [PATCH v2 1/3] tracing: Replace TRACE_FLAG_IRQS_NOSUPPORT with its config option Sebastian Andrzej Siewior
2024-10-22 7:14 ` Steven Rostedt
2024-10-22 9:52 ` Sebastian Andrzej Siewior
2024-10-22 10:19 ` Steven Rostedt
2024-10-22 10:29 ` Sebastian Andrzej Siewior [this message]
2024-10-22 11:01 ` [PATCH] tracing: Remove TRACE_FLAG_IRQS_NOSUPPORT Sebastian Andrzej Siewior
2024-10-21 15:08 ` [PATCH v2 2/3] tracing: Record task flag NEED_RESCHED_LAZY Sebastian Andrzej Siewior
2024-10-22 7:18 ` Steven Rostedt
2024-10-22 7:26 ` Sebastian Andrzej Siewior
2024-10-21 15:08 ` [PATCH v2 3/3] riscv: add PREEMPT_LAZY support Sebastian Andrzej Siewior
2024-10-21 15:08 ` Sebastian Andrzej Siewior
2024-11-06 10:48 ` [tip: sched/core] " tip-bot2 for Jisheng Zhang
2024-12-11 22:32 ` [PATCH v2 3/3] " patchwork-bot+linux-riscv
2024-12-11 22:32 ` patchwork-bot+linux-riscv
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=20241022102906.KNgo1A2_@linutronix.de \
--to=bigeasy@linutronix.de \
--cc=ankur.a.arora@oracle.com \
--cc=bsegall@google.com \
--cc=dietmar.eggemann@arm.com \
--cc=efault@gmx.de \
--cc=juri.lelli@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-trace-kernel@vger.kernel.org \
--cc=mathieu.desnoyers@efficios.com \
--cc=mgorman@suse.de \
--cc=mhiramat@kernel.org \
--cc=mingo@kernel.org \
--cc=peterz@infradead.org \
--cc=rostedt@goodmis.org \
--cc=tglx@linutronix.de \
--cc=vincent.guittot@linaro.org \
--cc=vschneid@redhat.com \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.