public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Peter Zijlstra <peterz@infradead.org>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	linux-kernel@vger.kernel.org,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	Nicholas Miell <nmiell@comcast.net>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Ingo Molnar <mingo@redhat.com>,
	Alan Cox <gnomes@lxorguk.ukuu.org.uk>,
	Lai Jiangshan <laijs@cn.fujitsu.com>,
	Stephen Hemminger <stephen@networkplumber.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Josh Triplett <josh@joshtriplett.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	David Howells <dhowells@redhat.com>
Subject: Re: [RFC PATCH] sys_membarrier(): system/process-wide memory barrier (x86) (v12)
Date: Tue, 17 Mar 2015 07:40:56 +0100	[thread overview]
Message-ID: <20150317064055.GK2896@worktop.programming.kicks-ass.net> (raw)
In-Reply-To: <20150316222611.782cc0e4@grimm.local.home>

On Mon, Mar 16, 2015 at 10:26:11PM -0400, Steven Rostedt wrote:
> As I recently found out that this_cpu_read/write() is not that nice on
> all architectures,

In fact, they only really work well on x86. Aargh64 seems to have a semi
usable version, but mostly its quite horrible indeed.

  reply	other threads:[~2015-03-17  6:41 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-15 19:24 [RFC PATCH] sys_membarrier(): system/process-wide memory barrier (x86) (v12) Mathieu Desnoyers
2015-03-15 22:05 ` Paul E. McKenney
2015-03-16  3:25 ` Josh Triplett
2015-03-16 13:00   ` Mathieu Desnoyers
2015-03-16 14:19 ` Peter Zijlstra
2015-03-16 14:24   ` Steven Rostedt
2015-03-16 15:49     ` Mathieu Desnoyers
2015-03-16 15:49     ` Paul E. McKenney
2015-03-16 16:12       ` Steven Rostedt
2015-03-16 15:43   ` Mathieu Desnoyers
2015-03-16 15:57     ` Mathieu Desnoyers
2015-03-16 17:13     ` Peter Zijlstra
2015-03-16 17:21     ` Peter Zijlstra
2015-03-16 18:53       ` Mathieu Desnoyers
2015-03-16 20:54         ` Peter Zijlstra
2015-03-17  1:45           ` Mathieu Desnoyers
2015-03-17  2:26             ` Steven Rostedt
2015-03-17  6:40               ` Peter Zijlstra [this message]
2015-03-17 11:44                 ` Paul E. McKenney
2015-03-17 14:10                   ` Steven Rostedt
2015-03-17 16:35                     ` Paul E. McKenney
2015-03-17 12:46               ` Mathieu Desnoyers
2015-03-18  1:06                 ` Steven Rostedt
2015-03-17  6:30             ` Peter Zijlstra
2015-03-17 11:56               ` Paul E. McKenney
2015-03-17 12:01                 ` Paul E. McKenney
2015-03-17 13:13               ` Mathieu Desnoyers
2015-03-17 16:36                 ` Mathieu Desnoyers
2015-03-17 16:48                   ` Paul E. McKenney
2015-03-17 17:55                   ` josh
2015-03-17 16:37                 ` Peter Zijlstra
2015-03-17 16:49                   ` Paul E. McKenney
2015-03-17 17:00                     ` Peter Zijlstra
2015-03-16 17:24     ` 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=20150317064055.GK2896@worktop.programming.kicks-ass.net \
    --to=peterz@infradead.org \
    --cc=akpm@linux-foundation.org \
    --cc=dhowells@redhat.com \
    --cc=gnomes@lxorguk.ukuu.org.uk \
    --cc=josh@joshtriplett.org \
    --cc=kosaki.motohiro@jp.fujitsu.com \
    --cc=laijs@cn.fujitsu.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mathieu.desnoyers@efficios.com \
    --cc=mingo@redhat.com \
    --cc=nmiell@comcast.net \
    --cc=paulmck@linux.vnet.ibm.com \
    --cc=rostedt@goodmis.org \
    --cc=stephen@networkplumber.org \
    --cc=tglx@linutronix.de \
    --cc=torvalds@linux-foundation.org \
    /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