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Message-Id: <1430952775-4266-2-git-send-email-linux@rasmusvillemoes.dk>
Date: Thu, 7 May 2015 00:52:50 +0200
From: Rasmus Villemoes <linux@...musvillemoes.dk>
To: Ingo Molnar <mingo@...nel.org>,
"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc: Rasmus Villemoes <linux@...musvillemoes.dk>,
linux-kernel@...r.kernel.org
Subject: [PATCH 1/5] kernel/cpu.c: change type of cpu_possible_bits and friends
Change cpu_possible_bits and friends (online, present, active) from
being bitmaps that happen to have the right size to actually being
struct cpumasks. Also rename them to __cpu_xyz_mask. This is mostly a
small cleanup in preparation for exporting them and, eventually,
eliminating the extra indirection through the cpu_xyz_mask variables.
Signed-off-by: Rasmus Villemoes <linux@...musvillemoes.dk>
---
kernel/cpu.c | 44 ++++++++++++++++++++++----------------------
1 file changed, 22 insertions(+), 22 deletions(-)
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 94bbe4695232..de38b31b4a3d 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -755,71 +755,71 @@ const DECLARE_BITMAP(cpu_all_bits, NR_CPUS) = CPU_BITS_ALL;
EXPORT_SYMBOL(cpu_all_bits);
#ifdef CONFIG_INIT_ALL_POSSIBLE
-static DECLARE_BITMAP(cpu_possible_bits, CONFIG_NR_CPUS) __read_mostly
- = CPU_BITS_ALL;
+static struct cpumask __cpu_possible_mask __read_mostly
+ = {CPU_BITS_ALL};
#else
-static DECLARE_BITMAP(cpu_possible_bits, CONFIG_NR_CPUS) __read_mostly;
+static struct cpumask __cpu_possible_mask __read_mostly;
#endif
-const struct cpumask *const cpu_possible_mask = to_cpumask(cpu_possible_bits);
+const struct cpumask *const cpu_possible_mask = &__cpu_possible_mask;
EXPORT_SYMBOL(cpu_possible_mask);
-static DECLARE_BITMAP(cpu_online_bits, CONFIG_NR_CPUS) __read_mostly;
-const struct cpumask *const cpu_online_mask = to_cpumask(cpu_online_bits);
+static struct cpumask __cpu_online_mask __read_mostly;
+const struct cpumask *const cpu_online_mask = &__cpu_online_mask;
EXPORT_SYMBOL(cpu_online_mask);
-static DECLARE_BITMAP(cpu_present_bits, CONFIG_NR_CPUS) __read_mostly;
-const struct cpumask *const cpu_present_mask = to_cpumask(cpu_present_bits);
+static struct cpumask __cpu_present_mask __read_mostly;
+const struct cpumask *const cpu_present_mask = &__cpu_present_mask;
EXPORT_SYMBOL(cpu_present_mask);
-static DECLARE_BITMAP(cpu_active_bits, CONFIG_NR_CPUS) __read_mostly;
-const struct cpumask *const cpu_active_mask = to_cpumask(cpu_active_bits);
+static struct cpumask __cpu_active_mask __read_mostly;
+const struct cpumask *const cpu_active_mask = &__cpu_active_mask;
EXPORT_SYMBOL(cpu_active_mask);
void set_cpu_possible(unsigned int cpu, bool possible)
{
if (possible)
- cpumask_set_cpu(cpu, to_cpumask(cpu_possible_bits));
+ cpumask_set_cpu(cpu, &__cpu_possible_mask);
else
- cpumask_clear_cpu(cpu, to_cpumask(cpu_possible_bits));
+ cpumask_clear_cpu(cpu, &__cpu_possible_mask);
}
void set_cpu_present(unsigned int cpu, bool present)
{
if (present)
- cpumask_set_cpu(cpu, to_cpumask(cpu_present_bits));
+ cpumask_set_cpu(cpu, &__cpu_present_mask);
else
- cpumask_clear_cpu(cpu, to_cpumask(cpu_present_bits));
+ cpumask_clear_cpu(cpu, &__cpu_present_mask);
}
void set_cpu_online(unsigned int cpu, bool online)
{
if (online) {
- cpumask_set_cpu(cpu, to_cpumask(cpu_online_bits));
- cpumask_set_cpu(cpu, to_cpumask(cpu_active_bits));
+ cpumask_set_cpu(cpu, &__cpu_online_mask);
+ cpumask_set_cpu(cpu, &__cpu_active_mask);
} else {
- cpumask_clear_cpu(cpu, to_cpumask(cpu_online_bits));
+ cpumask_clear_cpu(cpu, &__cpu_online_mask);
}
}
void set_cpu_active(unsigned int cpu, bool active)
{
if (active)
- cpumask_set_cpu(cpu, to_cpumask(cpu_active_bits));
+ cpumask_set_cpu(cpu, &__cpu_active_mask);
else
- cpumask_clear_cpu(cpu, to_cpumask(cpu_active_bits));
+ cpumask_clear_cpu(cpu, &__cpu_active_mask);
}
void init_cpu_present(const struct cpumask *src)
{
- cpumask_copy(to_cpumask(cpu_present_bits), src);
+ cpumask_copy(&__cpu_present_mask, src);
}
void init_cpu_possible(const struct cpumask *src)
{
- cpumask_copy(to_cpumask(cpu_possible_bits), src);
+ cpumask_copy(&__cpu_possible_mask, src);
}
void init_cpu_online(const struct cpumask *src)
{
- cpumask_copy(to_cpumask(cpu_online_bits), src);
+ cpumask_copy(&__cpu_online_mask, src);
}
--
2.1.3
--
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