mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Dietmar Eggemann <dietmar.eggemann@arm.com>
To: Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@kernel.org>,
	Juri Lelli <juri.lelli@redhat.com>
Cc: Luca Abeni <luca.abeni@santannapisa.it>,
	Daniel Bristot de Oliveira <bristot@redhat.com>,
	Valentin Schneider <valentin.schneider@arm.com>,
	Qais Yousef <qais.yousef@arm.com>,
	linux-kernel@vger.kernel.org
Subject: [PATCH v2 2/3] sched/deadline: Use __sub_running_bw() throughout dl_change_utilization()
Date: Fri,  2 Aug 2019 15:59:44 +0100	[thread overview]
Message-ID: <20190802145945.18702-3-dietmar.eggemann@arm.com> (raw)
In-Reply-To: <20190802145945.18702-1-dietmar.eggemann@arm.com>

dl_change_utilization() has a BUG_ON() to check that no schedutil
kthread (sugov) is entering this function. So instead of calling
sub_running_bw() which checks for the special entity related to a
sugov thread, call the underlying function __sub_running_bw().

Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
---
 kernel/sched/deadline.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 6dafaabde1d6..c34e35e7ac23 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -164,7 +164,7 @@ void dl_change_utilization(struct task_struct *p, u64 new_bw)
 
 	rq = task_rq(p);
 	if (p->dl.dl_non_contending) {
-		sub_running_bw(&p->dl, &rq->dl);
+		__sub_running_bw(p->dl.dl_bw, &rq->dl);
 		p->dl.dl_non_contending = 0;
 		/*
 		 * If the timer handler is currently running and the
-- 
2.17.1


  parent reply	other threads:[~2019-08-02 15:00 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-02 14:59 [PATCH v2 0/3] sched/deadline: Fix double accounting in push_dl_task() & some cleanups Dietmar Eggemann
2019-08-02 14:59 ` [PATCH v2 1/3] sched/deadline: Fix double accounting of rq/running bw in push & pull Dietmar Eggemann
2019-08-06 11:19   ` [tip:sched/urgent] " tip-bot for Dietmar Eggemann
2019-08-02 14:59 ` Dietmar Eggemann [this message]
2019-08-02 14:59 ` [PATCH v2 3/3] sched/deadline: Cleanup on_dl_rq() handling Dietmar Eggemann

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=20190802145945.18702-3-dietmar.eggemann@arm.com \
    --to=dietmar.eggemann@arm.com \
    --cc=bristot@redhat.com \
    --cc=juri.lelli@redhat.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=luca.abeni@santannapisa.it \
    --cc=mingo@kernel.org \
    --cc=peterz@infradead.org \
    --cc=qais.yousef@arm.com \
    --cc=valentin.schneider@arm.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

all inboxes | Powered by JetHome®