From: Dave Hansen <dave.hansen@intel.com>
To: Rik van Riel <riel@surriel.com>,
Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
linux-kernel@vger.kernel.org, kernel-team@meta.com
Subject: Re: [PATCH] x86,tlb: update mm_cpumask lazily
Date: Fri, 8 Nov 2024 12:46:14 -0800 [thread overview]
Message-ID: <e25bd94d-b219-414a-ba65-f2003df32597@intel.com> (raw)
In-Reply-To: <20241108143144.2f15fe35@imladris.surriel.com>
On 11/8/24 11:31, Rik van Riel wrote:
> /* Can only happen on remote CPUs */
> - if (f->mm && f->mm != loaded_mm)
> + if (f->mm && f->mm != loaded_mm) {
> + cpumask_clear_cpu(raw_smp_processor_id(), mm_cpumask(f->mm));
> return;
> + }
We could also stick a new flush event type in here that says it received
an IPI for a non-loaded mm to see how common those are.
prev parent reply other threads:[~2024-11-08 20:46 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-08 19:31 [PATCH] x86,tlb: update mm_cpumask lazily Rik van Riel
2024-11-08 20:03 ` Dave Hansen
2024-11-08 20:07 ` Rik van Riel
2024-11-08 20:10 ` Dave Hansen
2024-11-08 20:31 ` Dave Hansen
2024-11-08 20:41 ` Rik van Riel
2024-11-08 20:46 ` Dave Hansen [this message]
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