The patch titled
Subject: kernel/cpu.c: export __cpu_*_mask
has been added to the -mm tree. Its filename is
kernel-cpuc-export-__cpu__mask.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/kernel-cpuc-export-__cpu__mask.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/kernel-cpuc-export-__cpu__mask.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Subject: kernel/cpu.c: export __cpu_*_mask
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.
Signed-off-by: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Acked-by: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/cpumask.h | 4 ++++
kernel/cpu.c | 14 +++++++++-----
2 files changed, 13 insertions(+), 5 deletions(-)
diff -puN include/linux/cpumask.h~kernel-cpuc-export-__cpu__mask include/linux/cpumask.h
--- a/include/linux/cpumask.h~kernel-cpuc-export-__cpu__mask
+++ a/include/linux/cpumask.h
@@ -89,6 +89,10 @@ extern const struct cpumask *const cpu_p
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 -puN kernel/cpu.c~kernel-cpuc-export-__cpu__mask kernel/cpu.c
--- a/kernel/cpu.c~kernel-cpuc-export-__cpu__mask
+++ a/kernel/cpu.c
@@ -759,23 +759,27 @@ const DECLARE_BITMAP(cpu_all_bits, NR_CP
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);
_
Patches currently in -mm which might be from linux@xxxxxxxxxxxxxxxxxx are
powerpc-fadump-rename-cpu_online_mask-member-of-struct-fadump_crash_info_header.patch
kernel-cpuc-change-type-of-cpu_possible_bits-and-friends.patch
kernel-cpuc-export-__cpu__mask.patch
drivers-base-cpuc-use-__cpu__mask-directly.patch
kernel-cpuc-eliminate-cpu__mask.patch
kernel-cpuc-make-set_cpu_-static-inlines.patch
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