From: Stephen Boyd <sboyd@codeaurora.org>
To: linux-kernel@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
Russell King <rmk@arm.linux.org.uk>,
Richard Weinberger <richard@nod.at>,
Hirokazu Takata <takata@linux-m32r.org>,
Kyle McMartin <kyle@mcmartin.ca>,
Richard Henderson <rth@twiddle.net>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Matt Turner <mattst88@gmail.com>
Subject: [PATCH] Remove unused PROC_CHANGE_PENALTY constant
Date: Wed, 18 May 2011 18:24:35 -0700 [thread overview]
Message-ID: <1305768275-24316-1-git-send-email-sboyd@codeaurora.org> (raw)
In-Reply-To: <\>
This constant hasn't been used since before the git era (2.6.12)
and thus can be dropped.
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Richard Weinberger <richard@nod.at>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
---
arch/alpha/include/asm/smp.h | 2 --
arch/arm/include/asm/smp.h | 6 ------
arch/m32r/include/asm/smp.h | 2 --
arch/parisc/include/asm/smp.h | 9 ---------
arch/um/include/asm/smp.h | 1 -
5 files changed, 0 insertions(+), 20 deletions(-)
diff --git a/arch/alpha/include/asm/smp.h b/arch/alpha/include/asm/smp.h
index 3f390e8..c46e714 100644
--- a/arch/alpha/include/asm/smp.h
+++ b/arch/alpha/include/asm/smp.h
@@ -39,8 +39,6 @@ struct cpuinfo_alpha {
extern struct cpuinfo_alpha cpu_data[NR_CPUS];
-#define PROC_CHANGE_PENALTY 20
-
#define hard_smp_processor_id() __hard_smp_processor_id()
#define raw_smp_processor_id() (current_thread_info()->cpu)
diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h
index 96ed521..dfeb29c 100644
--- a/arch/arm/include/asm/smp.h
+++ b/arch/arm/include/asm/smp.h
@@ -22,12 +22,6 @@
#define raw_smp_processor_id() (current_thread_info()->cpu)
-/*
- * at the moment, there's not a big penalty for changing CPUs
- * (the >big< penalty is running SMP in the first place)
- */
-#define PROC_CHANGE_PENALTY 15
-
struct seq_file;
/*
diff --git a/arch/m32r/include/asm/smp.h b/arch/m32r/include/asm/smp.h
index e67ded1..8accc1b 100644
--- a/arch/m32r/include/asm/smp.h
+++ b/arch/m32r/include/asm/smp.h
@@ -94,8 +94,6 @@ extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
#define NO_PROC_ID (0xff) /* No processor magic marker */
-#define PROC_CHANGE_PENALTY (15) /* Schedule penalty */
-
/*
* M32R-mp IPI
*/
diff --git a/arch/parisc/include/asm/smp.h b/arch/parisc/include/asm/smp.h
index 2e73623..e8f8037 100644
--- a/arch/parisc/include/asm/smp.h
+++ b/arch/parisc/include/asm/smp.h
@@ -33,15 +33,6 @@ extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
#endif /* !ASSEMBLY */
-/*
- * This magic constant controls our willingness to transfer
- * a process across CPUs. Such a transfer incurs cache and tlb
- * misses. The current value is inherited from i386. Still needs
- * to be tuned for parisc.
- */
-
-#define PROC_CHANGE_PENALTY 15 /* Schedule penalty */
-
#define raw_smp_processor_id() (current_thread_info()->cpu)
#else /* CONFIG_SMP */
diff --git a/arch/um/include/asm/smp.h b/arch/um/include/asm/smp.h
index f27a963..4a4b09d 100644
--- a/arch/um/include/asm/smp.h
+++ b/arch/um/include/asm/smp.h
@@ -11,7 +11,6 @@
#define cpu_logical_map(n) (n)
#define cpu_number_map(n) (n)
-#define PROC_CHANGE_PENALTY 15 /* Pick a number, any number */
extern int hard_smp_processor_id(void);
#define NO_PROC_ID -1
--
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
next parent reply other threads:[~2011-05-19 1:24 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <\>
2011-05-19 1:24 ` Stephen Boyd [this message]
2014-02-12 7:10 ` [PATCH v2] can: xilinx CAN controller support Kedareswara rao Appana
2014-02-13 19:20 ` Marc Kleine-Budde
2014-02-14 8:55 ` Michal Simek
2014-02-14 9:04 ` Marc Kleine-Budde
2014-02-14 9:13 ` Michal Simek
2014-02-14 9:16 ` Marc Kleine-Budde
2014-02-14 9:36 ` Appana Durga Kedareswara Rao
2014-02-14 9:59 ` Marc Kleine-Budde
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