linux-pm.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Abhishek Goel <huntbag@linux.vnet.ibm.com>
To: trenn@suse.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Abhishek Goel <huntbag@linux.vnet.ibm.com>
Subject: [PATCH] cpupower : Fix cpupower working when cpu0 is offline
Date: Fri, 22 Sep 2017 14:17:32 +0530	[thread overview]
Message-ID: <20170922084732.119903-1-huntbag@linux.vnet.ibm.com> (raw)

cpuidle_monitor used to assume that cpu0 is always online. Now the
cpuidle_monitor function searches for the first online cpu and use
it, instead of always using cpu0 which maynot be online.

Signed-off-by: Abhishek Goel <huntbag@linux.vnet.ibm.com>
---
 tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c b/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c
index 055a4fa..1cfba02 100644
--- a/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c
+++ b/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c
@@ -132,13 +132,13 @@ static struct cpuidle_monitor *cpuidle_register(void)
 	char *tmp;
 	int first_online_cpu;
 
-	for (num = 0; num < cpu_count; num++){
+	for (num = 0; num < cpu_count; num++) {
 		if (cpupower_is_cpu_online(num))
 			break;
 	};
 	first_online_cpu = num;
-	
-	/* Assume idle state count is the same for all CPUs */ 
+
+	/* Assume idle state count is the same for all CPUs */
 	cpuidle_sysfs_monitor.hw_states_num = cpuidle_state_count(first_online_cpu);
 
 	if (cpuidle_sysfs_monitor.hw_states_num <= 0)
-- 
2.9.3

             reply	other threads:[~2017-09-22  8:47 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-22  8:47 Abhishek Goel [this message]
  -- strict thread matches above, loose matches on Subject: below --
2017-09-22 11:02 [PATCH] cpupower : Fix cpupower working when cpu0 is offline Abhishek Goel
2017-09-26 10:12 ` Gautham R Shenoy

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=20170922084732.119903-1-huntbag@linux.vnet.ibm.com \
    --to=huntbag@linux.vnet.ibm.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pm@vger.kernel.org \
    --cc=trenn@suse.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;
as well as URLs for NNTP newsgroup(s).