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Commit e16b38f7 authored by Greg Banks's avatar Greg Banks Committed by Linus Torvalds
Browse files

[PATCH] cpumask: export cpu_online_map and cpu_possible_map consistently 



cpumask: ensure that the cpu_online_map and cpu_possible_map bitmasks, and
hence all the macros in <linux/cpumask.h> that require them, are available to
modules for all supported combinations of architecture and CONFIG_SMP.

Signed-off-by: default avatarGreg Banks <gnb@melbourne.sgi.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 0f532f38

arch/arm/kernel/smp.c

+2 −0
Original line number Diff line number Diff line
@@ -36,7 +36,9 @@ 
 * The online bitmask indicates that the CPU is up and running.

 */

cpumask_t cpu_possible_map;

EXPORT_SYMBOL(cpu_possible_map);

cpumask_t cpu_online_map;

EXPORT_SYMBOL(cpu_online_map);



/*

 * as from 2.5, kernels no longer have an init_tasks structure

arch/cris/arch-v32/kernel/smp.c

+1 −0
Original line number Diff line number Diff line
@@ -28,6 +28,7 @@ spinlock_t cris_atomic_locks[] = { [0 ... LOCK_COUNT - 1] = SPIN_LOCK_UNLOCKED}; 


/* CPU masks */

cpumask_t cpu_online_map = CPU_MASK_NONE;

EXPORT_SYMBOL(cpu_online_map);

cpumask_t phys_cpu_present_map = CPU_MASK_NONE;

EXPORT_SYMBOL(phys_cpu_present_map);

arch/sh/kernel/smp.c

+1 −0
Original line number Diff line number Diff line
@@ -42,6 +42,7 @@ cpumask_t cpu_possible_map; 
EXPORT_SYMBOL(cpu_possible_map);



cpumask_t cpu_online_map;

EXPORT_SYMBOL(cpu_online_map);

static atomic_t cpus_booted = ATOMIC_INIT(0);



/* These are defined by the board-specific code. */

kernel/sched.c

+3 −0
Original line number Diff line number Diff line
@@ -4384,7 +4384,10 @@ EXPORT_SYMBOL(cpu_present_map); 


#ifndef CONFIG_SMP

cpumask_t cpu_online_map __read_mostly = CPU_MASK_ALL;

EXPORT_SYMBOL(cpu_online_map);



cpumask_t cpu_possible_map __read_mostly = CPU_MASK_ALL;

EXPORT_SYMBOL(cpu_possible_map);

#endif



long sched_getaffinity(pid_t pid, cpumask_t *mask)