All of lore.kernel.org
 help / color / mirror / Atom feed
From: Christian Borntraeger <borntraeger@de.ibm.com>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: stable@vger.kernel.org, "Paolo Bonzini" <pbonzini@redhat.com>,
	KVM <kvm@vger.kernel.org>, "Cornelia Huck" <cohuck@redhat.com>,
	"Janosch Frank" <frankja@linux.ibm.com>,
	"David Hildenbrand" <david@redhat.com>,
	linux-s390 <linux-s390@vger.kernel.org>,
	"Thomas Huth" <thuth@redhat.com>,
	"Claudio Imbrenda" <imbrenda@linux.ibm.com>,
	"Radim Krčmář" <rkrcmar@redhat.com>,
	"Nitesh Narayan Lal" <nitesh@redhat.com>,
	"Halil Pasic" <pasic@linux.ibm.com>
Subject: Re: [PATCH 0/1] KVM: s390: backport for stable of "KVM: s390: index
Date: Mon, 20 Sep 2021 17:30:11 +0200	[thread overview]
Message-ID: <16dad0d8-43bf-1ad7-bf3e-ae3acfde97eb@de.ibm.com> (raw)
In-Reply-To: <YUint4b1ETglbj8z@kroah.com>



Am 20.09.21 um 17:24 schrieb Greg KH:
> On Mon, Sep 20, 2021 at 05:06:15PM +0200, Christian Borntraeger wrote:
>> Stable team,
>>
>> here is a backport for 4.19 of
>> commit a3e03bc1368 ("KVM: s390: index kvm->arch.idle_mask by vcpu_idx")
>> This basically removes the kick_mask parts that were introduced with
>> kernel 5.0 and fixes up the location of the idle_mask to the older
>> place.
> 
> Now queued up, thanks.
> 
>> FWIW, it might be a good idea to also backport
>> 8750e72a79dd ("KVM: remember position in kvm->vcpus array") to avoid
>> a performance regression for large guests (many vCPUs) when this patch
>> is applied.
>> @Paolo Bonzini, would you be ok with 8750e72a79dd in older stable releases?
> 
> That would also have to go into 5.4.y, right?
Ideally yes.

  reply	other threads:[~2021-09-20 15:30 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-20 15:06 [PATCH 0/1] KVM: s390: backport for stable of "KVM: s390: index Christian Borntraeger
2021-09-20 15:06 ` [PATCH 1/1] KVM: s390: index kvm->arch.idle_mask by vcpu_idx Christian Borntraeger
2021-09-21  2:43   ` Halil Pasic
2021-09-20 15:24 ` [PATCH 0/1] KVM: s390: backport for stable of "KVM: s390: index Greg KH
2021-09-20 15:30   ` Christian Borntraeger [this message]
2021-09-20 18:05 ` Paolo Bonzini
2021-09-21  8:46   ` Christian Borntraeger
2021-09-21 13:04     ` Paolo Bonzini

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=16dad0d8-43bf-1ad7-bf3e-ae3acfde97eb@de.ibm.com \
    --to=borntraeger@de.ibm.com \
    --cc=cohuck@redhat.com \
    --cc=david@redhat.com \
    --cc=frankja@linux.ibm.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=imbrenda@linux.ibm.com \
    --cc=kvm@vger.kernel.org \
    --cc=linux-s390@vger.kernel.org \
    --cc=nitesh@redhat.com \
    --cc=pasic@linux.ibm.com \
    --cc=pbonzini@redhat.com \
    --cc=rkrcmar@redhat.com \
    --cc=stable@vger.kernel.org \
    --cc=thuth@redhat.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.