From: Peter Zijlstra <peterz@infradead.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: Eric Dumazet <edumazet@google.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H . Peter Anvin" <hpa@zytor.com>,
Steven Rostedt <rostedt@goodmis.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Masami Hiramatsu <mhiramat@kernel.org>,
x86@kernel.org, bpf@vger.kernel.org,
Eric Dumazet <eric.dumazet@gmail.com>,
Greg Thelen <gthelen@google.com>,
Stephane Eranian <eranian@google.com>
Subject: Re: [PATCH] x86/alternatives: remove false sharing in poke_int3_handler()
Date: Tue, 25 Mar 2025 13:31:19 +0100 [thread overview]
Message-ID: <20250325123119.GL36322@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <Z-KS7H6666PZ3eKv@gmail.com>
On Tue, Mar 25, 2025 at 12:26:36PM +0100, Ingo Molnar wrote:
> Yeah, so I do know what #BP is, but what the heck disambiguates the two
> meanings of _bp and why do we have the above jungle of an inconsistent
> namespace? :-)
>
> Picking _int3 would neatly solve all of that.
Sure; the most obvious case where BP would make sense, the trap entry
point, we already use int3 so yeah, make it int3 throughout.
next prev parent reply other threads:[~2025-03-25 12:55 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-23 7:25 [PATCH] x86/alternatives: remove false sharing in poke_int3_handler() Eric Dumazet
2025-03-23 21:38 ` Ingo Molnar
2025-03-24 3:59 ` Eric Dumazet
2025-03-24 7:16 ` Ingo Molnar
2025-03-24 7:47 ` Eric Dumazet
2025-03-24 7:53 ` Eric Dumazet
2025-03-24 8:04 ` Ingo Molnar
2025-03-24 11:33 ` Peter Zijlstra
2025-03-25 8:41 ` Ingo Molnar
2025-03-25 10:30 ` Peter Zijlstra
2025-03-25 11:26 ` Ingo Molnar
2025-03-25 12:31 ` Peter Zijlstra [this message]
2025-03-27 20:56 ` Ingo Molnar
2025-03-24 8:02 ` Ingo Molnar
2025-03-24 8:20 ` Eric Dumazet
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