linux-kernel - [PATCH 2/9] cpuidle: Rename X86 specific idle poll state[0] from C0 to POLL

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Date:	Fri,  7 Jan 2011 11:29:43 +0100
From:	Thomas Renninger <trenn@...e.de>
To:	unlisted-recipients:; (no To-header on input)
Cc:	linux-perf-users@...r.kernel.org, mingo@...e.hu,
	arjan@...ux.intel.com, lenb@...nel.org, j-pihet@...com,
	Thomas Renninger <trenn@...e.de>, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/9] cpuidle: Rename X86 specific idle poll state[0] from C0 to POLL

C0 means and is well know as "not idle".
All documentation out there uses this term as "running"/"not idle"
state. Also Linux userspace tools (e.g. cpufreq-aperf and turbostat)
show C0 residency which there is correct, but means something totally
else than cpuidle "POLL" state.

Signed-off-by: Thomas Renninger <trenn@...e.de>
CC: arjan@...ux.intel.com
CC: lenb@...nel.org
CC: linux-acpi@...r.kernel.org
CC: Ingo Molnar <mingo@...e.hu>
CC: linux-kernel@...r.kernel.org
---
 drivers/cpuidle/cpuidle.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 08d5f05..99cc8fc 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -260,7 +260,7 @@ static void poll_idle_init(struct cpuidle_device *dev)
 
 	cpuidle_set_statedata(state, NULL);
 
-	snprintf(state->name, CPUIDLE_NAME_LEN, "C0");
+	snprintf(state->name, CPUIDLE_NAME_LEN, "POLL");
 	snprintf(state->desc, CPUIDLE_DESC_LEN, "CPUIDLE CORE POLL IDLE");
 	state->exit_latency = 0;
 	state->target_residency = 0;
-- 
1.7.3.1

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