From: pbonzini@redhat.com (Paolo Bonzini)
Subject: [ltt-dev] [URCU PATCH] cmm: provide lightweight rmb/wmb on PPC
Date: Tue, 20 Sep 2011 18:39:33 +0200 [thread overview]
Message-ID: <4E78C1C5.2080001@redhat.com> (raw)
In-Reply-To: <20110920163125.GA31802@Krystal>
On 09/20/2011 06:31 PM, Mathieu Desnoyers wrote:
> I don't think lwsync orders non-cacheable memory operations. Therefore,
> is it the right choice for cmm_rmb/cmm_wmb ?
I think you're right. "eieio;lwsync" is good for rmb, lwsync is good for
wmb/smp_rmb/smp_wmb.
Paolo
next prev parent reply other threads:[~2011-09-20 16:39 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-20 7:12 Paolo Bonzini
2011-09-20 16:31 ` Mathieu Desnoyers
2011-09-20 16:39 ` Paolo Bonzini [this message]
2011-09-20 16:51 ` Mathieu Desnoyers
2011-09-21 7:20 ` Paolo Bonzini
2011-09-21 23:43 ` Paul E. McKenney
2011-09-21 23:42 ` Paul E. McKenney
2011-09-22 8:42 ` [ltt-dev] [PATCH v2] cmm: provide lightweight smp_rmb/smp_wmb " Paolo Bonzini
2011-09-22 9:10 ` Mathieu Desnoyers
2011-09-22 14:49 ` Paul E. McKenney
2011-09-22 14:57 ` Mathieu Desnoyers
2011-09-22 15:26 ` Paul E. McKenney
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=4E78C1C5.2080001@redhat.com \
--to=pbonzini@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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox