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From: Peter Zijlstra <peterz@infradead.org>
To: Nadav Amit <namit@vmware.com>
Cc: Ingo Molnar <mingo@redhat.com>, Andy Lutomirski <luto@kernel.org>,
	Borislav Petkov <bp@alien8.de>,
	linux-kernel@vger.kernel.org,
	Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [RFC PATCH 0/6] x86/mm: Flush remote and local TLBs concurrently
Date: Mon, 27 May 2019 10:28:36 +0200	[thread overview]
Message-ID: <20190527082836.GQ2623@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20190525082203.6531-1-namit@vmware.com>

On Sat, May 25, 2019 at 01:21:57AM -0700, Nadav Amit wrote:
> The proposed changes should also improve the performance of other
> invocations of on_each_cpu(). Hopefully, no one has relied on the
> behavior of on_each_cpu() that functions were first executed remotely
> and only then locally.

Oh gawd... I actually have vague memories of code doing exactly that,
but I can't for the life of me remember where :/:

  parent reply	other threads:[~2019-05-27  8:28 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-25  8:21 Nadav Amit
2019-05-25  8:21 ` [RFC PATCH 1/6] smp: Remove smp_call_function() and on_each_cpu() return values Nadav Amit
2019-05-25  8:21 ` [RFC PATCH 2/6] cpumask: Purify cpumask_next() Nadav Amit
2019-05-25  8:32   ` Ingo Molnar
2019-05-27  8:30   ` Peter Zijlstra
2019-05-27 17:34     ` Nadav Amit
2019-05-25  8:22 ` [RFC PATCH 3/6] smp: Run functions concurrently in smp_call_function_many() Nadav Amit
2019-05-27  9:15   ` Peter Zijlstra
2019-05-27 17:39     ` Nadav Amit
2019-05-25  8:22 ` [RFC PATCH 4/6] x86/mm/tlb: Refactor common code into flush_tlb_on_cpus() Nadav Amit
2019-05-27  9:24   ` Peter Zijlstra
2019-05-27 18:59     ` Nadav Amit
2019-05-27 19:14       ` Peter Zijlstra
2019-05-25  8:22 ` [RFC PATCH 5/6] x86/mm/tlb: Flush remote and local TLBs concurrently Nadav Amit
2019-05-25  8:38   ` Nadav Amit
2019-05-25  8:54   ` Juergen Gross
2019-05-27  9:47     ` Peter Zijlstra
2019-05-27 10:21       ` Paolo Bonzini
2019-05-27 12:32         ` Peter Zijlstra
2019-05-27 12:45           ` Paolo Bonzini
2019-05-27 17:49       ` Nadav Amit
2019-05-25  8:22 ` [RFC PATCH 6/6] x86/mm/tlb: Optimize local TLB flushes Nadav Amit
2019-05-27  8:28 ` Peter Zijlstra [this message]
2019-05-27  9:59 ` [RFC PATCH 0/6] x86/mm: Flush remote and local TLBs concurrently Peter Zijlstra

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