public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Michael Wang <wangyun@linux.vnet.ibm.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: linux-kernel@vger.kernel.org, mingo@redhat.com
Subject: Re: [PATCH] sched: rewrite the wrong annotation for select_task_rq_fair()
Date: Tue, 09 Oct 2012 10:21:27 +0800	[thread overview]
Message-ID: <50738A27.7050007@linux.vnet.ibm.com> (raw)
In-Reply-To: <1347956160-6946-1-git-send-email-wangyun@linux.vnet.ibm.com>

On 09/18/2012 04:16 PM, Michael Wang wrote:
> The annotation for select_task_rq_fair() is wrong since commit c88d5910, it's
> actually for a removed function.
> 
> This patch rewrite the wrong annotation to make it correct.

Could I get some comments on the patch?

Regards,
Michael Wang

> 
> Signed-off-by: Michael Wang <wangyun@linux.vnet.ibm.com>
> ---
>  kernel/sched/fair.c |   14 ++++++++------
>  1 files changed, 8 insertions(+), 6 deletions(-)
> 
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index 6b800a1..35eb43a 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -2682,15 +2682,17 @@ done:
>  }
> 
>  /*
> - * sched_balance_self: balance the current task (running on cpu) in domains
> - * that have the 'flag' flag set. In practice, this is SD_BALANCE_FORK and
> - * SD_BALANCE_EXEC.
> + * select_task_rq_fair:
> + *	Select a suitable CPU for task p, in order to keep load balance.
>   *
> - * Balance, ie. select the least loaded group.
> + *	sd_flag:
> + *		the domain we try to balance should have "sd_flag" flag set.
>   *
> - * Returns the target CPU number, or the same CPU if no balancing is needed.
> + *	wake_flags:
> + *		indicate WF_SYNC.
>   *
> - * preempt must be disabled.
> + *	Must hold p->pi_lock and disable irq before invoke.
> + *	Return the CPU number for task p to running on.
>   */
>  static int
>  select_task_rq_fair(struct task_struct *p, int sd_flag, int wake_flags)
> 


      parent reply	other threads:[~2012-10-09  2:21 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1347956160-6946-1-git-send-email-wangyun@linux.vnet.ibm.com>
2012-09-26  3:43 ` [PATCH] sched: rewrite the wrong annotation for select_task_rq_fair() Michael Wang
2012-10-06  9:04   ` Michael Wang
2012-10-06  9:11     ` Michael Wang
2012-10-09  2:21 ` Michael Wang [this message]

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=50738A27.7050007@linux.vnet.ibm.com \
    --to=wangyun@linux.vnet.ibm.com \
    --cc=a.p.zijlstra@chello.nl \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@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