From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
To: Rusty Russell <rusty@rustcorp.com.au>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Oleg Nesterov <oleg@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Andrew Morton <akpm@linux-foundation.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>,
linux-kernel@vger.kernel.org
Subject: [PATCH v2, resend 3/6] kernel/cpu.c: export __cpu_*_mask
Date: Mon, 23 Nov 2015 20:51:37 +0100 [thread overview]
Message-ID: <1448308300-22582-4-git-send-email-linux@rasmusvillemoes.dk> (raw)
In-Reply-To: <1448308300-22582-1-git-send-email-linux@rasmusvillemoes.dk>
Exporting the cpumasks __cpu_possible_mask and friends will allow us
to remove the extra indirection through the cpu_*_mask variables. It
will also allow the set_cpu_* functions to become static inlines,
which will give a .text reduction.
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
---
include/linux/cpumask.h | 4 ++++
kernel/cpu.c | 14 +++++++++-----
2 files changed, 13 insertions(+), 5 deletions(-)
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 59915ea5373c..d4545a1852f2 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -89,6 +89,10 @@ extern const struct cpumask *const cpu_possible_mask;
extern const struct cpumask *const cpu_online_mask;
extern const struct cpumask *const cpu_present_mask;
extern const struct cpumask *const cpu_active_mask;
+extern struct cpumask __cpu_possible_mask;
+extern struct cpumask __cpu_online_mask;
+extern struct cpumask __cpu_present_mask;
+extern struct cpumask __cpu_active_mask;
#if NR_CPUS > 1
#define num_online_cpus() cpumask_weight(cpu_online_mask)
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 6a96b713cea7..35d1d45be8e9 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -759,23 +759,27 @@ const DECLARE_BITMAP(cpu_all_bits, NR_CPUS) = CPU_BITS_ALL;
EXPORT_SYMBOL(cpu_all_bits);
#ifdef CONFIG_INIT_ALL_POSSIBLE
-static struct cpumask __cpu_possible_mask __read_mostly
+struct cpumask __cpu_possible_mask __read_mostly
= {CPU_BITS_ALL};
#else
-static struct cpumask __cpu_possible_mask __read_mostly;
+struct cpumask __cpu_possible_mask __read_mostly;
#endif
+EXPORT_SYMBOL(__cpu_possible_mask);
const struct cpumask *const cpu_possible_mask = &__cpu_possible_mask;
EXPORT_SYMBOL(cpu_possible_mask);
-static struct cpumask __cpu_online_mask __read_mostly;
+struct cpumask __cpu_online_mask __read_mostly;
+EXPORT_SYMBOL(__cpu_online_mask);
const struct cpumask *const cpu_online_mask = &__cpu_online_mask;
EXPORT_SYMBOL(cpu_online_mask);
-static struct cpumask __cpu_present_mask __read_mostly;
+struct cpumask __cpu_present_mask __read_mostly;
+EXPORT_SYMBOL(__cpu_present_mask);
const struct cpumask *const cpu_present_mask = &__cpu_present_mask;
EXPORT_SYMBOL(cpu_present_mask);
-static struct cpumask __cpu_active_mask __read_mostly;
+struct cpumask __cpu_active_mask __read_mostly;
+EXPORT_SYMBOL(__cpu_active_mask);
const struct cpumask *const cpu_active_mask = &__cpu_active_mask;
EXPORT_SYMBOL(cpu_active_mask);
--
2.6.1
next prev parent reply other threads:[~2015-11-23 19:52 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-06 15:21 [PATCH v2 0/6] kernel/cpu.c: eliminate some indirection Rasmus Villemoes
2015-10-06 15:21 ` [PATCH v2 1/6] powerpc/fadump: rename cpu_online_mask member of struct fadump_crash_info_header Rasmus Villemoes
2015-10-06 15:21 ` [PATCH v2 2/6] kernel/cpu.c: change type of cpu_possible_bits and friends Rasmus Villemoes
2015-10-06 15:21 ` [PATCH v2 3/6] kernel/cpu.c: export __cpu_*_mask Rasmus Villemoes
2015-10-06 15:21 ` [PATCH v2 4/6] drivers/base/cpu.c: use __cpu_*_mask directly Rasmus Villemoes
2015-10-06 15:21 ` [PATCH v2 5/6] kernel/cpu.c: eliminate cpu_*_mask Rasmus Villemoes
2015-10-06 15:21 ` [PATCH v2 6/6] kernel/cpu.c: make set_cpu_* static inlines Rasmus Villemoes
2015-10-17 22:07 ` [PATCH v2 0/6] kernel/cpu.c: eliminate some indirection Rasmus Villemoes
2015-10-18 1:41 ` Rusty Russell
2015-11-23 19:51 ` [PATCH v2, resend " Rasmus Villemoes
2015-11-23 19:51 ` [PATCH v2, resend 1/6] powerpc/fadump: rename cpu_online_mask member of struct fadump_crash_info_header Rasmus Villemoes
2015-11-23 19:51 ` [PATCH v2, resend 2/6] kernel/cpu.c: change type of cpu_possible_bits and friends Rasmus Villemoes
2015-11-23 19:51 ` Rasmus Villemoes [this message]
2015-11-23 19:51 ` [PATCH v2, resend 4/6] drivers/base/cpu.c: use __cpu_*_mask directly Rasmus Villemoes
2015-11-23 19:51 ` [PATCH v2, resend 5/6] kernel/cpu.c: eliminate cpu_*_mask Rasmus Villemoes
2015-11-23 19:51 ` [PATCH v2, resend 6/6] kernel/cpu.c: make set_cpu_* static inlines Rasmus Villemoes
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