All of lore.kernel.org
 help / color / mirror / Atom feed
From: Rakib Mullick <rakib.mullick@gmail.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>, Ingo Molnar <mingo@elte.hu>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: [Question] sched: Should nr_uninterruptible be decremented in ttwu_do_activate()?
Date: Wed, 11 Jan 2012 23:22:29 +0600	[thread overview]
Message-ID: <CADZ9YHicin2YjGm_m9B0LMv3NW1Z3cb7HSCaqwycFmVfRpvpWA@mail.gmail.com> (raw)

Hello all,

In ttwu_do_activate(), we're decrementing nr_uninterruptible if
p->sched_contributes_to_load (for SMP=y). But, we're also decrementing
nr_uninterruptible from activate_task at the same path. Why we're
doing it twice for a single task activation path?


Thanks,
Rakib

             reply	other threads:[~2012-01-11 17:22 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-11 17:22 Rakib Mullick [this message]
2012-01-11 17:29 ` [Question] sched: Should nr_uninterruptible be decremented in ttwu_do_activate()? Peter Zijlstra
2012-01-12  6:09   ` Rakib Mullick
2012-01-12  7:25     ` Peter Zijlstra
2012-01-12 17:08       ` Rakib Mullick
2012-01-12 20:25         ` Peter Zijlstra
2012-01-16  7:53         ` Michael Wang
2012-01-16  8:27           ` Rakib Mullick
2012-01-16  9:22             ` Michael Wang
2012-01-16 17:22               ` Rakib Mullick
2012-01-16 13:00             ` Hillf Danton
2012-01-16 17:26               ` Rakib Mullick

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=CADZ9YHicin2YjGm_m9B0LMv3NW1Z3cb7HSCaqwycFmVfRpvpWA@mail.gmail.com \
    --to=rakib.mullick@gmail.com \
    --cc=a.p.zijlstra@chello.nl \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@elte.hu \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.