From: Oleksii Kurochko <oleksii.kurochko@gmail.com>
To: Jan Beulich <jbeulich@suse.com>,
"xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>
Cc: "Andrew Cooper" <andrew.cooper3@citrix.com>,
"Julien Grall" <julien@xen.org>,
"Stefano Stabellini" <sstabellini@kernel.org>,
"Anthony PERARD" <anthony.perard@vates.tech>,
"Michal Orzel" <michal.orzel@amd.com>,
"Roger Pau Monné" <roger.pau@citrix.com>,
"Dario Faggioli" <dfaggioli@suse.com>,
"Juergen Gross" <jgross@suse.com>,
"George Dunlap" <gwd@xenproject.org>
Subject: Re: [PATCH v2 for-4.22? 1/7] sched: introduce specialization of "running only" vcpu_runstate_get()
Date: Wed, 17 Jun 2026 11:58:00 +0200 [thread overview]
Message-ID: <1514083e-6fec-4b13-9541-90fe412c40eb@gmail.com> (raw)
In-Reply-To: <a35b4b37-edc4-4173-b30c-6ff0fcb44df0@suse.com>
On 6/17/26 11:26 AM, Jan Beulich wrote:
> About half the callers of vcpu_runstate_get() are solely after the
> "running" time of a vCPU. Introduce a specialization with a smaller
> read critical section and thus reduced risk of a need for retries.
>
> Signed-off-by: Jan Beulich<jbeulich@suse.com>
> Acked-by: Roger Pau Monné<roger.pau@citrix.com>
> Reviewed-by: Juergen Gross<jgross@suse.com>
> ---
Release-Acked-by: Oleksii Kurochko <oleksii.kurochko@gmail.com>
Thanks.
~ Oleksii
next prev parent reply other threads:[~2026-06-17 9:58 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-17 9:24 [PATCH v2 for-4.22? 0/7] domctl: XSA-492 and -491 follow-on Jan Beulich
2026-06-17 9:26 ` [PATCH v2 for-4.22? 1/7] sched: introduce specialization of "running only" vcpu_runstate_get() Jan Beulich
2026-06-17 9:58 ` Oleksii Kurochko [this message]
2026-06-17 9:26 ` [PATCH v2 for-4.22? 2/7] domctl: handle XEN_DOMCTL_getvcpuinfo without acquiring domctl lock Jan Beulich
2026-06-17 9:27 ` [PATCH v2 for-4.22? 3/7] domctl: move early special casing of XEN_DOMCTL_shadow_op Jan Beulich
2026-06-17 11:20 ` Roger Pau Monné
2026-06-17 13:11 ` Oleksii Kurochko
2026-06-17 9:27 ` [PATCH v2 for-4.22? 4/7] domctl: restrict permission check for XEN_DOMCTL_memory_mapping's remove form Jan Beulich
2026-06-17 11:37 ` Roger Pau Monné
2026-06-17 11:47 ` Jan Beulich
2026-06-17 11:57 ` Oleksii Kurochko
2026-06-17 9:29 ` [PATCH v2 for-4.22? 5/7] domctl: correct return value of XEN_DOMCTL_[gs]etvcpuaffinity Jan Beulich
2026-06-17 11:08 ` Jürgen Groß
2026-06-17 11:45 ` Roger Pau Monné
2026-06-17 9:30 ` [PATCH v2 for-4.22? 6/7] x86/domctl: don't imply I/O port permissions from I/O port mapping Jan Beulich
2026-06-17 11:53 ` Oleksii Kurochko
2026-06-17 15:18 ` Roger Pau Monné
2026-06-17 9:30 ` [PATCH v2 for-4.22? 7/7] x86/HVM: more checking for XEN_DOMCTL_ioport_mapping Jan Beulich
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