LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Peter Zijlstra <peterz@infradead.org>
To: Trinabh Gupta <trinabh@linux.vnet.ibm.com>
Cc: arjan@linux.intel.com, lenb@kernel.org,
	suresh.b.siddha@intel.com, benh@kernel.crashing.org,
	venki@google.com, ak@linux.intel.com,
	linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH V3 3/3] cpuidle: default idle driver for x86
Date: Wed, 09 Feb 2011 12:19:24 +0100	[thread overview]
Message-ID: <1297250364.13327.160.camel@laptop> (raw)
In-Reply-To: <20110208105214.9998.85114.stgit@tringupt.in.ibm.com>

On Tue, 2011-02-08 at 16:22 +0530, Trinabh Gupta wrote:
> +/*
> + * cpu_idle_wait - Used to ensure that all the CPUs discard old value of
> + * pm_idle and update to new pm_idle value. Required while changing pm_idle
> + * handler on SMP systems.
> + *
> + * Caller must have changed pm_idle to the new value before the call. Old
> + * pm_idle value will not be used by any CPU after the return of this function.
> + */
> +void cpu_idle_wait(void)
> +{
> +       smp_mb();
> +       /* kick all the CPUs so that they exit out of pm_idle */
> +       smp_call_function(do_nothing, NULL, 1);
> +} 

pm_idle exists no longer... 


  reply	other threads:[~2011-02-09 11:18 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-08 10:51 [RFC PATCH V3 0/3] cpuidle: Cleanup pm_idle and include driver/cpuidle.c in-kernel Trinabh Gupta
2011-02-08 10:51 ` [RFC PATCH V3 1/3] cpuidle: Remove pm_idle pointer for x86 Trinabh Gupta
2011-02-08 10:52 ` [RFC PATCH V3 2/3] cpuidle: list based cpuidle driver registration and selection Trinabh Gupta
2011-02-09 11:17   ` Peter Zijlstra
2011-02-10  7:00     ` Vaidyanathan Srinivasan
2011-02-10  9:53       ` Peter Zijlstra
2011-02-10 17:16         ` Vaidyanathan Srinivasan
2011-02-08 10:52 ` [RFC PATCH V3 3/3] cpuidle: default idle driver for x86 Trinabh Gupta
2011-02-09 11:19   ` Peter Zijlstra [this message]
2011-02-09 11:21 ` [RFC PATCH V3 0/3] cpuidle: Cleanup pm_idle and include driver/cpuidle.c in-kernel Peter Zijlstra
2011-02-10 15:10   ` Trinabh Gupta

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=1297250364.13327.160.camel@laptop \
    --to=peterz@infradead.org \
    --cc=ak@linux.intel.com \
    --cc=arjan@linux.intel.com \
    --cc=benh@kernel.crashing.org \
    --cc=lenb@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=suresh.b.siddha@intel.com \
    --cc=trinabh@linux.vnet.ibm.com \
    --cc=venki@google.com \
    --subject='Re: [RFC PATCH V3 3/3] cpuidle: default idle driver for x86' \
    /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

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).