From: Dan Carpenter <error27@gmail.com>
To: Piotr Zarycki <piotr.zarycki@gmail.com>
Cc: kvm@vger.kernel.org, seanjc@google.com, pbonzini@redhat.com,
shuah@kernel.org, vkuznets@redhat.com,
linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-janitors@vger.kernel.org
Subject: Re: [PATCH] KVM: selftests: hyperv_tlb_flush: replace NOP loop with udelay()
Date: Tue, 21 Apr 2026 23:10:22 +0300 [thread overview]
Message-ID: <aefZrtpivxh0eK_0@stanley.mountain> (raw)
In-Reply-To: <20260421172953.191345-1-piotr.zarycki@gmail.com>
On Tue, Apr 21, 2026 at 07:29:53PM +0200, Piotr Zarycki wrote:
> Replace the open-coded NOP loop with udelay() which was added to KVM
> selftests in commit 6b878cbb87bf ("KVM: selftests: Add guest udelay()
> utility for x86"). The NOP loop is CPU speed dependent while udelay()
> provides a deterministic delay regardless of host CPU frequency.
>
> Signed-off-by: Piotr Zarycki <piotr.zarycki@gmail.com>
> ---
How did you test this?
regards,
dan carpenter
next prev parent reply other threads:[~2026-04-21 20:10 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-21 17:29 [PATCH] KVM: selftests: hyperv_tlb_flush: replace NOP loop with udelay() Piotr Zarycki
2026-04-21 20:10 ` Dan Carpenter [this message]
2026-04-22 9:13 ` Piotr Zarycki
2026-04-22 12:36 ` Vitaly Kuznetsov
2026-04-22 13:03 ` [PATCH v2] " Piotr Zarycki
2026-04-23 7:50 ` Vitaly Kuznetsov
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