From: Paolo Bonzini <pbonzini@redhat.com>
To: Wanpeng Li <kernellwp@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
LKML <linux-kernel@vger.kernel.org>, kvm <kvm@vger.kernel.org>,
Davidlohr Bueso <dave@stgolabs.net>,
Oleg Nesterov <oleg@redhat.com>, Ingo Molnar <mingo@kernel.org>,
"Paul E . McKenney" <paulmck@linux.vnet.ibm.com>,
Wanpeng Li <wanpengli@tencent.com>
Subject: Re: [PATCH] rcuwait: do not enter RCU protection unless a wakeup is needed
Date: Wed, 20 Oct 2021 14:04:23 +0200 [thread overview]
Message-ID: <bd4e3b80-fefd-43e8-e96b-ea81f21569bd@redhat.com> (raw)
In-Reply-To: <CANRm+CyX+ZZh+LbLPBXEfMoExkx78qHpP-=yFCop9gX+LQeWDQ@mail.gmail.com>
On 20/10/21 14:01, Wanpeng Li wrote:
> Yes, in the attachment.
>
> Wanpeng
This one does not have CONFIG_PREEMPT=y, let alone CONFIG_PREEMPT_RCU.
It's completely impossible that this patch has an effect without those
options.
Paolo
next prev parent reply other threads:[~2021-10-20 12:04 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-20 11:06 [PATCH] rcuwait: do not enter RCU protection unless a wakeup is needed Paolo Bonzini
2021-10-20 11:17 ` Peter Zijlstra
2021-10-20 11:37 ` Paolo Bonzini
2021-10-22 4:11 ` Lai Jiangshan
2021-10-20 11:52 ` Paolo Bonzini
[not found] ` <CANRm+CyX+ZZh+LbLPBXEfMoExkx78qHpP-=yFCop9gX+LQeWDQ@mail.gmail.com>
2021-10-20 12:04 ` Paolo Bonzini [this message]
[not found] ` <CANRm+Cxpav5FqCBZoQv5BLnC160_RA3YDJc_CFabW7oMBFQ_5g@mail.gmail.com>
2021-10-22 13:59 ` Peter Zijlstra
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=bd4e3b80-fefd-43e8-e96b-ea81f21569bd@redhat.com \
--to=pbonzini@redhat.com \
--cc=dave@stgolabs.net \
--cc=kernellwp@gmail.com \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@kernel.org \
--cc=oleg@redhat.com \
--cc=paulmck@linux.vnet.ibm.com \
--cc=peterz@infradead.org \
--cc=wanpengli@tencent.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox