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From: Dominik Brodowski <linux@dominikbrodowski.net>
To: davej@redhat.com, cpufreq@lists.linux.org.uk
Subject: [PATCH 007/007] cpufreq_ondemand: add range check
Date: Sun, 26 Mar 2006 11:57:51 +0200	[thread overview]
Message-ID: <20060326095751.GH17358@dominikbrodowski.de> (raw)
In-Reply-To: <20060326095338.GA17358@dominikbrodowski.de>

From: Dominik Brodowski <linux@dominikbrodowski.net>

Assert that cpufreq_target is, at least, called with the minimum frequency
allowed by this policy, not something lower. It triggered problems on ARM.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

---

 drivers/cpufreq/cpufreq_ondemand.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

7c9d8c0e84d395a01289ebd1597758939a875a86
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index cd846f5..956d121 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -351,6 +351,9 @@ static void dbs_check_cpu(int cpu)
 	freq_next = (freq_next * policy->cur) /
 			(dbs_tuners_ins.up_threshold - 10);
 
+	if (freq_next < policy->min)
+		freq_next = policy->min;
+
 	if (freq_next <= ((policy->cur * 95) / 100))
 		__cpufreq_driver_target(policy, freq_next, CPUFREQ_RELATION_L);
 }
-- 
1.2.4

  parent reply	other threads:[~2006-03-26  9:57 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-03-26  9:53 [git pull] cpufreq governor updates for 2.6.17 Dominik Brodowski
2006-03-26  9:54 ` [PATCH 001/007] cpufreq_conservative: aligning of codebase with ondemand Dominik Brodowski
2006-03-26  9:55 ` [PATCH 002/007] cpufreq_conservative: alter default responsiveness Dominik Brodowski
2006-03-26  9:55 ` [PATCH 003/007] cpufreq_conservative: make for_each_cpu() safe Dominik Brodowski
2006-03-26  9:56 ` [PATCH 004/007] cpufreq_conservative: alternative initialise approach Dominik Brodowski
2006-03-26  9:57 ` [PATCH 005/007] cpufreq_ondemand: Warn if it cannot run due to too long transition latency Dominik Brodowski
2006-03-26  9:57 ` [PATCH 006/007] cpufreq_ondemand: keep ignore_nice_load value when it is reselected Dominik Brodowski
2006-03-26  9:57 ` Dominik Brodowski [this message]
2006-03-27 19:53 ` [git pull] cpufreq governor updates for 2.6.17 Dave Jones
2006-03-27 19:58   ` Dave Jones
2006-03-27 21:06     ` Dominik Brodowski

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